873:-like planet would need to be centered within 0.68 AU (around the orbital distance of Venus), which in a Keplerian system means a 240-day orbital period. In a later simulation with the brown dwarf, 54 Piscium b's orbit "sweeps clean" most test particles within 0.5 AU, leaving only asteroids "in low-eccentricity orbits near the known planet's apastron distance, near the 1:2 mean-motion resonance". Also, observation has ruled out Neptune-class or heavier planets with a period of one year or less; which still allows for Earth-sized planets at 0.6 AU or more.
729:
28:
4220:
2030:
Wittenmyer, Robert A.; Wang, Songhu; Horner, Jonathan; Tinney, C. G.; Butler, R. P.; Jones, H. R. A.; O'Toole, S. J.; Bailey, J.; Carter, B. D.; Salter, G. S.; Wright, D.; Zhou, Ji-Lin (2013), "Forever alone? Testing single eccentric planetary systems for multiple companions",
724:
numbers. It has a Sun-like activity cycle that has been decreasing in magnitude. As of 2010, the most recent period of peak activity was 1992–1996, which showed a lower level of activity than the previous peak in 1976–1980.
854:
to complete. It has been assumed that the planet shares the star's inclination and so has real mass close to its minimum mass; however, several "hot
Jupiters" are known to be oblique relative to the stellar axis.
862:
of about 0.65. The highly elliptical orbit suggested that the gravity of an unseen object farther away from the star was pulling the planet outward. That cause was verified with the discovery of the
1975:
Wittenmyer, Robert A.; Endl, Michael; Cochran, William D.; Levison, Harold F. (2007). "Dynamical and
Observational Constraints on Additional Planets in Highly Eccentric Planetary Systems".
1364:
Ghezzi, L.; et al. (September 2010), "Stellar
Parameters and Metallicities of Stars Hosting Jovian and Neptunian Mass Planets: A Possible Dependence of Planetary Mass on Metallicity",
4272:
701:. There is some uncertainty in the scientific press concerning the higher ratio of elements heavier than hydrogen compared to those found in the Sun; what astronomers term the
562:
2264:
1675:
361:
1695:
642:, first published in 1712. It has an apparent magnitude of 5.86, allowing it to be seen with the unaided eye under suitable viewing conditions. The star has a
1723:
Santos, N. C.; Israelian, G.; Mayor, M. (March 2004). "Spectroscopic for 98 extra-solar planet-host stars. Exploring the probability of planet formation".
531:
4297:
2192:
1247:
Holmberg, J.; et al. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics",
4307:
2225:
1550:
Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age
Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics".
2257:
4247:
1171:
van Belle, Gerard T.; von Braun, Kaspar (2009). "Directly
Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars".
2172:
1909:
Roberto
Sanchis-Ojeda; Josh N. Winn; Daniel C. Fabrycky (2012). "Starspots and spin-orbit alignment for Kepler cool host stars".
1887:
546:
4282:
4277:
4223:
2250:
44:
884:
is possible however it does not significantly improve the solution, and therefore does not justify the additional complexity.
4292:
905:
4267:
4262:
566:
2289:
570:
542:
2167:
1703:
1072:
4302:
4287:
693:. The rotational period of 54 Piscium is about 40.2 days. The age of the star is about 6.4 billion years, based on
4252:
2888:
1059:
787:
from the primary star. 54 Piscium B was the first brown dwarf to be detected around a star with an already known
558:
1423:"Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters"
4257:
1977:
1113:
2284:
776:
1612:
Luhman, K. L.; et al. (2007). "Discovery of Two T Dwarf
Companions with the Spitzer Space Telescope".
3122:
2993:
2273:
2202:
1793:
713:
705:. Santos et al. (2004) report the logarithm of the abundance ratio of iron to hydrogen, , to be 0.12
643:
615:
550:
106:
57:
698:
3274:
2960:
2451:
655:
635:
536:
527:
498:
369:
2109:
2050:
1996:
1928:
1848:
1785:
1742:
1631:
1569:
1510:
1444:
1383:
1328:
1266:
1229:
1190:
1144:
1091:
931:
859:
780:
651:
230:
2217:
1798:
4242:
936:
752:"T7.5V". The luminosity of this substellar object suggests that it has a mass of 0.051 that of the
554:
4168:
2127:
2099:
2066:
2040:
2012:
1986:
1962:
1944:
1918:
1864:
1838:
1811:
1758:
1732:
1702:, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from
1647:
1621:
1585:
1559:
1528:
1500:
1462:
1434:
1399:
1373:
1346:
1318:
1282:
1256:
1206:
1180:
1081:
1030:
251:
89:
728:
1665:
768:, this brown dwarf is thought to have a surface temperature of about 810 K (537 °C).
2308:
911:
881:
843:
820:
788:
784:
619:
424:
40:
27:
3072:
2117:
2058:
2004:
1936:
1856:
1803:
1750:
1746:
1639:
1577:
1518:
1452:
1391:
1336:
1274:
1270:
1198:
1101:
1096:
847:
591:
406:
398:
336:
214:
3218:
2411:
2386:
2336:
1025:
877:
792:
717:
349:
162:
65:
2113:
2054:
2000:
1932:
1852:
1789:
1635:
1573:
1514:
1448:
1387:
1332:
1233:
1194:
1148:
748:
companion to 54 Piscium A. 54 Piscium B is thought to be a "methane brown dwarf" of the
4153:
3256:
2366:
1395:
1202:
918:
682:
639:
519:
222:
202:
190:
1307:"HD 3651 B: the first directly imaged brown dwarf companion of an exoplanet host star"
4236:
2441:
2401:
2361:
2351:
2331:
2326:
2316:
2131:
1868:
1523:
1488:
1466:
1457:
1422:
1403:
1341:
1306:
1286:
749:
647:
611:
179:
138:
52:
2070:
2062:
2016:
1948:
1815:
1776:
Fischer, Debra A.; et al. (2003). "A Sub-Saturn Mass Planet
Orbiting HD 3651".
1762:
1651:
1589:
1350:
1210:
4183:
4148:
3228:
3223:
3127:
2436:
2431:
2426:
2356:
2341:
2321:
1532:
963:
949:
824:
765:
737:
694:
686:
603:
485:
444:
316:
282:
1961:
This based upon square root of the star's luminosity relative to the Sun, per the
1278:
1106:
1063:
1754:
662:
is about 5,062 K, giving it the characteristic orange hue of a K-type star.
3213:
3208:
3203:
3198:
3193:
2864:
2859:
2854:
2849:
2844:
2839:
2834:
2829:
2421:
2416:
2406:
2396:
2346:
1020:
1015:
863:
816:
745:
733:
702:
690:
659:
623:
391:
128:
117:
78:
1135:
Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars".
4163:
3264:
3062:
2945:
2940:
2935:
2925:
2911:
2906:
2901:
2896:
2824:
2819:
2814:
2809:
2804:
2799:
2794:
2789:
2784:
2779:
2774:
2769:
2764:
2759:
2754:
2749:
2744:
2739:
2734:
2729:
2724:
2719:
2714:
2709:
2704:
2699:
2694:
2689:
2684:
2679:
2669:
2664:
2659:
2654:
2649:
2644:
2639:
2634:
2629:
2624:
2619:
2614:
2609:
2604:
2599:
2594:
2589:
2584:
2579:
2574:
2569:
2564:
2559:
2554:
2549:
2544:
2539:
2534:
2529:
2524:
2519:
2514:
2509:
2504:
2499:
2494:
2489:
2391:
2381:
2376:
2371:
2197:
1882:
1224:
Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities".
674:
607:
458:
329:
289:
237:
150:
2149:
3188:
3183:
3178:
3173:
3168:
3163:
3155:
3057:
3041:
3036:
3031:
2983:
2484:
2479:
2474:
2469:
2464:
2459:
2122:
2087:
1940:
2242:
2177:
2088:"Truly eccentric – I. Revisiting eight single-eccentric planetary systems"
4178:
4173:
4132:
4127:
4122:
4117:
4112:
4107:
4102:
4097:
4092:
4087:
4082:
4077:
4072:
4067:
4062:
4057:
4052:
4047:
3233:
1843:
1737:
1626:
1439:
1323:
721:
431:
4203:
4198:
4193:
4188:
4042:
4037:
4032:
4027:
4022:
4017:
4012:
4007:
4002:
3997:
3992:
3987:
3982:
3977:
3972:
3967:
3962:
3957:
3952:
3947:
3942:
3937:
3932:
3927:
3922:
3917:
3912:
3907:
3902:
3897:
3892:
3887:
3882:
3877:
3872:
3867:
3862:
3857:
3852:
3847:
3842:
3837:
3832:
3827:
3822:
3817:
3812:
3807:
3802:
3797:
3792:
3787:
3782:
3777:
3772:
3767:
3762:
3757:
3752:
3747:
3742:
3737:
3732:
3727:
3722:
3717:
3712:
3707:
3702:
3697:
3692:
3687:
3682:
3677:
3672:
3667:
3662:
3657:
3652:
3647:
3642:
3637:
3632:
3627:
3622:
3617:
3612:
3607:
3602:
3597:
3592:
3587:
3582:
3577:
3572:
3567:
3562:
3557:
3552:
3547:
3542:
3537:
3532:
3527:
3522:
3517:
3512:
3507:
3502:
3497:
3492:
3487:
3482:
3477:
3472:
3467:
3462:
3457:
3452:
3447:
3442:
3437:
3432:
3427:
3422:
3417:
3412:
3407:
3402:
3397:
3392:
3387:
3382:
3377:
3372:
3367:
3362:
3357:
3352:
3347:
3342:
3337:
3137:
3132:
3117:
3112:
3107:
3102:
3097:
3092:
3087:
3067:
3026:
3021:
3016:
3011:
3006:
3001:
2978:
2973:
2950:
2930:
832:
761:
638:
54 Piscium originated in the star catalogue of the
British astronomer
3332:
3327:
3322:
3317:
3312:
3307:
3302:
3297:
3292:
3287:
3247:
3082:
3077:
2916:
2877:
2870:
1670:
1117:
941:
836:
709:, whereas Cenarro et al. (2007) published a value of –0.15 dex.
706:
678:
585:
512:
471:
383:
302:
242:
2104:
2008:
1860:
1829:
Butler, R. P.; et al. (2006). "Catalog of Nearby
Exoplanets".
1807:
1643:
1581:
1086:
4158:
3282:
2045:
1991:
1923:
1564:
1505:
1378:
1261:
1185:
870:
727:
2193:"Scientists Snap Images of First Brown Dwarf in Planetary System"
2968:
2299:
900:
828:
772:
757:
670:
665:
It has been calculated that the star may have 76 percent of the
206:
194:
2246:
1068:
Data Release 2: Summary of the contents and survey properties"
924:
851:
753:
744:
In 2006, a direct image of 54 Piscium showed that there was a
666:
827:) around 54 Piscium. The planet has been estimated to have a
720:
period, which means it may undergo an extended period of low
1311:
Monthly Notices of the Royal Astronomical Society: Letters
646:
of K0V, with the luminosity class V indicating this is a
32:
54 Piscium A and the brown dwarf 54 Piscium B (circled).
650:
star that is generating energy at its core through the
622:
was confirmed to be orbiting the star, and in 2006, a
1137:
Communications of the Lunar and Planetary Laboratory
835:(making the planet around the same size and mass of
4141:
3273:
3255:
3246:
3154:
3050:
2992:
2959:
2887:
2450:
2307:
2298:
815:On January 16, 2003, a team of astronomers (led by
1062:; et al. (Gaia collaboration) (August 2018).
2092:Monthly Notices of the Royal Astronomical Society
2081:
2079:
1493:Monthly Notices of the Royal Astronomical Society
1482:
1480:
1478:
1476:
1427:Monthly Notices of the Royal Astronomical Society
1300:
1298:
1296:
1545:
1543:
1416:
1414:
1412:
842:The planet orbits its sun at a distance of 0.28
1607:
1605:
1603:
1601:
1599:
1166:
1164:
1162:
1160:
1158:
764:) and 0.082 times the Sun's radius. Similar to
1226:Carnegie Institute Washington D.C. Publication
2258:
1676:Centre de données astronomiques de Strasbourg
1487:Simpson, E. K.; et al. (November 2010).
83:+21° 15′ 01.7161″
16:Orange dwarf star in the constellation Pisces
8:
1421:Cenarro, A. J.; et al. (January 2007).
4273:Planetary systems with one confirmed planet
2086:Wittenmyer, Robert A.; et al. (2019).
2033:The Astrophysical Journal Supplement Series
1700:Australia Telescope, Outreach and Education
43:J2000.0
3252:
3151:
2304:
2265:
2251:
2243:
1489:"Rotation periods of exoplanet host stars"
1130:
1128:
1126:
1054:
1052:
1050:
1048:
1046:
779:, it was shown that the brown dwarf had a
2121:
2103:
2044:
1990:
1922:
1842:
1797:
1736:
1625:
1563:
1522:
1504:
1456:
1438:
1377:
1340:
1322:
1260:
1184:
1105:
1095:
1085:
771:When 54 Piscium B was directly imaged by
886:
803:The star rotates at an inclination of 83
1042:
186:
1228:. Carnegie Institution of Washington.
716:levels suggests that it is entering a
18:
7:
846:(which would be within the orbit of
2228:from the original on 9 October 2008
2218:"Distorted Solar System Discovered"
880:with two circular planets in a 2:1
198:
1305:Mugrauer, M.; et al. (2006).
14:
626:was also discovered orbiting it.
4219:
4218:
2173:Extrasolar Planets Encyclopaedia
1888:Extrasolar Planets Encyclopaedia
1524:10.1111/j.1365-2966.2010.17230.x
1458:10.1111/j.1365-2966.2006.11196.x
1342:10.1111/j.1745-3933.2006.00237.x
888:The 54 Piscium planetary system
850:), which takes approximately 62
819:) announced the discovery of an
681:has been directly determined by
221:89.7891 ± 0.0581
26:
1114:Gaia DR2 record for this source
4298:Henry Draper Catalogue objects
712:Long term observation of this
1:
4308:Bright Star Catalogue objects
736:54 Piscium B and the planet
685:to be 94 percent that of the
654:of hydrogen into helium. The
2201:. 2006-09-18. Archived from
1396:10.1088/0004-637X/720/2/1290
1203:10.1088/0004-637X/694/2/1085
1073:Astronomy & Astrophysics
940:
935:
930:
917:
904:
899:
892:
2290:Pisces in Chinese astronomy
1279:10.1051/0004-6361/200811191
1107:10.1051/0004-6361/201833051
831:of only 20 percent that of
812:degrees relative to Earth.
4324:
4248:K-type main-sequence stars
1755:10.1051/0004-6361:20034469
1725:Astronomy and Astrophysics
1249:Astronomy and Astrophysics
732:An artist's impression of
4216:
3150:
2280:
2063:10.1088/0067-0049/208/1/2
1911:Astronomische Nachrichten
1831:The Astrophysical Journal
1778:The Astrophysical Journal
1614:The Astrophysical Journal
1552:The Astrophysical Journal
1366:The Astrophysical Journal
1173:The Astrophysical Journal
578:
525:
518:
437:
275:
270:
266:
156:
149:
100:
37:
24:
3164:HD 1502 b (Indépendance)
2168:"Notes for star HD 3651"
1978:The Astronomical Journal
876:A two planet fit to the
714:star's magnetic activity
2285:List of stars in Pisces
2274:Constellation of Pisces
1747:2004A&A...415.1153S
1271:2009A&A...501..941H
1097:2018A&A...616A...1G
777:Spitzer Space Telescope
252:Absolute magnitude
90:Apparent magnitude
4283:Durchmusterung objects
4278:Pisces (constellation)
1941:10.1002/asna.201211765
858:The planet has a high
741:
695:chromospheric activity
673:and 46 percent of the
606:star approximately 36
4293:Gliese and GJ objects
3123:SIMP J013656.5+093347
2224:. 19 September 2006.
1696:"The Colour of Stars"
731:
656:effective temperature
636:Flamsteed designation
241:(11.137 ± 0.007
3214:HD 218566 b (Ugarit)
3189:HD 8574 b (Bélisama)
2123:10.1093/mnras/stz290
896:(in order from star)
781:projected separation
652:thermonuclear fusion
201: −369.814
189: −462.056
4268:T-type brown dwarfs
4263:Suspected variables
2114:2019MNRAS.484.5859W
2055:2013ApJS..208....2W
2001:2007AJ....134.1276W
1933:2013AN....334..180S
1853:2006ApJ...646..505B
1790:2003ApJ...590.1081F
1636:2007ApJ...654..570L
1574:2008ApJ...687.1264M
1515:2010MNRAS.408.1666S
1449:2007MNRAS.374..664C
1388:2010ApJ...720.1290G
1333:2006MNRAS.373L..31M
1234:1953GCRV..C......0W
1195:2009ApJ...694.1085V
1149:1966CoLPL...4...99J
889:
866:within the system.
699:isochronal analysis
579:Database references
21:
4169:KIDS J232940-34092
3133:WASP-32 (Parumleo)
1963:inverse-square law
1883:"Planet HD 3651 b"
1031:Upsilon Andromedae
887:
844:astronomical units
785:astronomical units
742:
630:Stellar components
520:Other designations
236:36.32 ± 0.02
139:Variable type
107:Spectral type
19:
4303:Hipparcos objects
4288:Flamsteed objects
4230:
4229:
4212:
4211:
3242:
3241:
3146:
3145:
1706:on March 18, 2012
1007:
1006:
928:
915:
897:
882:orbital resonance
878:radial velocities
821:extrasolar planet
789:extrasolar planet
620:extrasolar planet
597:
596:
4315:
4253:Solar-type stars
4222:
4221:
3253:
3152:
3002:1502 (Citadelle)
2322:β (Fumalsamakah)
2305:
2267:
2260:
2253:
2244:
2236:
2234:
2233:
2213:
2211:
2210:
2188:
2186:
2185:
2176:. Archived from
2163:
2161:
2160:
2136:
2135:
2125:
2107:
2098:(4): 5859–5867.
2083:
2074:
2073:
2048:
2027:
2021:
2020:
1994:
1985:(3): 1276–1284.
1972:
1966:
1959:
1953:
1952:
1926:
1917:(1–2): 180–183.
1906:
1900:
1899:
1897:
1895:
1879:
1873:
1872:
1846:
1844:astro-ph/0607493
1826:
1820:
1819:
1801:
1784:(2): 1081–1087.
1773:
1767:
1766:
1740:
1738:astro-ph/0311541
1720:
1714:
1713:
1712:
1711:
1692:
1686:
1685:
1683:
1682:
1662:
1656:
1655:
1629:
1627:astro-ph/0609464
1609:
1594:
1593:
1567:
1558:(2): 1264–1293.
1547:
1538:
1536:
1526:
1508:
1499:(3): 1666–1679.
1484:
1471:
1470:
1460:
1442:
1440:astro-ph/0611618
1418:
1407:
1406:
1381:
1372:(2): 1290–1302,
1361:
1355:
1354:
1344:
1326:
1324:astro-ph/0608484
1302:
1291:
1290:
1264:
1244:
1238:
1237:
1221:
1215:
1214:
1188:
1179:(2): 1085–1098.
1168:
1153:
1152:
1132:
1121:
1111:
1109:
1099:
1089:
1056:
997:
995:
988:
986:
979:
977:
966:
961:
959:
922:
909:
895:
890:
869:The orbit of an
811:
810:
799:Planetary system
540:
510:
508:
483:
481:
456:
454:
418:
416:
381:
379:
314:
312:
200:
188:
101:Characteristics
93:
73:
68:
38:Observation data
30:
22:
4323:
4322:
4318:
4317:
4316:
4314:
4313:
4312:
4258:Maunder Minimum
4233:
4232:
4231:
4226:
4208:
4137:
3269:
3238:
3142:
3073:2MASS 0036+1821
3046:
2988:
2955:
2883:
2446:
2294:
2276:
2271:
2240:
2231:
2229:
2216:
2208:
2206:
2191:
2183:
2181:
2166:
2158:
2156:
2148:
2145:
2140:
2139:
2085:
2084:
2077:
2029:
2028:
2024:
1974:
1973:
1969:
1960:
1956:
1908:
1907:
1903:
1893:
1891:
1881:
1880:
1876:
1828:
1827:
1823:
1799:10.1.1.582.3920
1775:
1774:
1770:
1722:
1721:
1717:
1709:
1707:
1694:
1693:
1689:
1680:
1678:
1664:
1663:
1659:
1611:
1610:
1597:
1549:
1548:
1541:
1486:
1485:
1474:
1420:
1419:
1410:
1363:
1362:
1358:
1304:
1303:
1294:
1246:
1245:
1241:
1223:
1222:
1218:
1170:
1169:
1156:
1134:
1133:
1124:
1060:Brown, A. G. A.
1058:
1057:
1044:
1039:
1026:Delta Trianguli
1012:
993:
991:
984:
982:
975:
973:
969:
964:
957:
955:
921:
908:
894:
809:
806:
805:
804:
801:
793:radial velocity
718:Maunder minimum
632:
574:
535:
506:
504:
491:
488:
479:
477:
464:
461:
452:
450:
414:
412:
377:
375:
350:Surface gravity
342:
339:
322:
319:
310:
308:
295:
292:
257:
240:
197:
173:−34.2 km/s
168:
163:Radial velocity
88:
71:
66:Right ascension
64:
39:
33:
31:
17:
12:
11:
5:
4321:
4319:
4311:
4310:
4305:
4300:
4295:
4290:
4285:
4280:
4275:
4270:
4265:
4260:
4255:
4250:
4245:
4235:
4234:
4228:
4227:
4217:
4214:
4213:
4210:
4209:
4207:
4206:
4201:
4196:
4191:
4186:
4181:
4176:
4171:
4166:
4161:
4156:
4154:Andromeda XXII
4151:
4145:
4143:
4139:
4138:
4136:
4135:
4130:
4125:
4120:
4115:
4110:
4105:
4100:
4095:
4090:
4085:
4080:
4075:
4070:
4065:
4060:
4055:
4050:
4045:
4040:
4035:
4030:
4025:
4020:
4015:
4010:
4005:
4000:
3995:
3990:
3985:
3980:
3975:
3970:
3965:
3960:
3955:
3950:
3945:
3940:
3935:
3930:
3925:
3920:
3915:
3910:
3905:
3900:
3895:
3890:
3885:
3880:
3875:
3870:
3865:
3860:
3855:
3850:
3845:
3840:
3835:
3830:
3825:
3820:
3815:
3810:
3805:
3800:
3795:
3790:
3785:
3780:
3775:
3770:
3765:
3760:
3755:
3750:
3745:
3740:
3735:
3730:
3725:
3720:
3715:
3710:
3705:
3700:
3695:
3690:
3685:
3680:
3675:
3670:
3665:
3660:
3655:
3650:
3645:
3640:
3635:
3630:
3625:
3620:
3615:
3610:
3605:
3600:
3595:
3590:
3585:
3580:
3575:
3570:
3565:
3560:
3555:
3550:
3545:
3540:
3535:
3530:
3525:
3520:
3515:
3510:
3505:
3500:
3495:
3490:
3485:
3480:
3475:
3470:
3465:
3460:
3455:
3450:
3445:
3440:
3435:
3430:
3425:
3420:
3415:
3410:
3405:
3400:
3395:
3390:
3385:
3380:
3375:
3370:
3365:
3360:
3355:
3350:
3345:
3340:
3335:
3330:
3325:
3320:
3315:
3310:
3305:
3300:
3295:
3290:
3285:
3279:
3277:
3271:
3270:
3268:
3267:
3261:
3259:
3250:
3244:
3243:
3240:
3239:
3237:
3236:
3231:
3226:
3221:
3216:
3211:
3206:
3201:
3196:
3191:
3186:
3181:
3176:
3171:
3166:
3160:
3158:
3148:
3147:
3144:
3143:
3141:
3140:
3135:
3130:
3125:
3120:
3115:
3110:
3105:
3100:
3095:
3090:
3085:
3080:
3075:
3070:
3065:
3060:
3054:
3052:
3048:
3047:
3045:
3044:
3039:
3034:
3029:
3024:
3022:8574 (Bélénos)
3019:
3014:
3009:
3004:
2998:
2996:
2990:
2989:
2987:
2986:
2981:
2976:
2971:
2965:
2963:
2957:
2956:
2954:
2953:
2948:
2943:
2938:
2933:
2928:
2923:
2914:
2909:
2904:
2899:
2893:
2891:
2885:
2884:
2882:
2881:
2874:
2867:
2862:
2857:
2852:
2847:
2842:
2837:
2832:
2827:
2822:
2817:
2812:
2807:
2802:
2797:
2792:
2787:
2782:
2777:
2772:
2767:
2762:
2757:
2752:
2747:
2742:
2737:
2732:
2727:
2722:
2717:
2712:
2707:
2702:
2697:
2692:
2687:
2682:
2677:
2672:
2667:
2662:
2657:
2652:
2647:
2642:
2637:
2632:
2627:
2622:
2617:
2612:
2607:
2602:
2597:
2592:
2587:
2582:
2577:
2572:
2567:
2562:
2557:
2552:
2547:
2542:
2537:
2532:
2527:
2522:
2517:
2512:
2507:
2502:
2497:
2492:
2487:
2482:
2477:
2472:
2467:
2462:
2456:
2454:
2448:
2447:
2445:
2444:
2439:
2434:
2429:
2424:
2419:
2414:
2409:
2404:
2399:
2394:
2389:
2384:
2379:
2374:
2369:
2364:
2359:
2354:
2349:
2344:
2339:
2334:
2329:
2324:
2319:
2313:
2311:
2302:
2296:
2295:
2293:
2292:
2287:
2281:
2278:
2277:
2272:
2270:
2269:
2262:
2255:
2247:
2238:
2237:
2214:
2189:
2180:on 1 June 2008
2164:
2144:
2143:External links
2141:
2138:
2137:
2075:
2022:
2009:10.1086/520880
1967:
1954:
1901:
1874:
1861:10.1086/504701
1837:(1): 505–522.
1821:
1808:10.1086/375027
1768:
1715:
1687:
1657:
1644:10.1086/509073
1620:(1): 570–579.
1595:
1582:10.1086/591785
1539:
1472:
1433:(2): 664–690.
1408:
1356:
1317:(1): L31–L35.
1292:
1255:(3): 941–947,
1239:
1216:
1154:
1122:
1041:
1040:
1038:
1035:
1034:
1033:
1028:
1023:
1018:
1011:
1008:
1005:
1004:
1001:
998:
989:
980:
971:
967:
953:
945:
944:
939:
934:
929:
919:Orbital period
916:
906:Semimajor axis
903:
898:
807:
800:
797:
783:of around 476
756:(50 times the
683:interferometry
644:classification
640:John Flamsteed
631:
628:
618:. In 2003, an
595:
594:
589:
581:
580:
576:
575:
526:
523:
522:
516:
515:
502:
494:
493:
489:
486:
475:
467:
466:
462:
459:
448:
440:
439:
435:
434:
428:
420:
419:
410:
402:
401:
395:
387:
386:
373:
365:
364:
358:
345:
344:
340:
337:
333:
325:
324:
320:
317:
306:
298:
297:
293:
290:
286:
278:
277:
273:
272:
268:
267:
264:
263:
260:
255:
247:
246:
234:
226:
225:
219:
210:
209:
184:
175:
174:
171:
166:
158:
157:
154:
153:
147:
146:
141:
135:
134:
131:
124:
123:
120:
113:
112:
109:
103:
102:
98:
97:
94:
85:
84:
81:
75:
74:
72:00 39 21.80551
69:
61:
60:
55:
49:
48:
35:
34:
25:
15:
13:
10:
9:
6:
4:
3:
2:
4320:
4309:
4306:
4304:
4301:
4299:
4296:
4294:
4291:
4289:
4286:
4284:
4281:
4279:
4276:
4274:
4271:
4269:
4266:
4264:
4261:
4259:
4256:
4254:
4251:
4249:
4246:
4244:
4241:
4240:
4238:
4225:
4215:
4205:
4202:
4200:
4197:
4195:
4192:
4190:
4187:
4185:
4182:
4180:
4177:
4175:
4172:
4170:
4167:
4165:
4162:
4160:
4157:
4155:
4152:
4150:
4147:
4146:
4144:
4140:
4134:
4131:
4129:
4126:
4124:
4121:
4119:
4116:
4114:
4111:
4109:
4106:
4104:
4101:
4099:
4096:
4094:
4091:
4089:
4086:
4084:
4081:
4079:
4076:
4074:
4071:
4069:
4066:
4064:
4061:
4059:
4056:
4054:
4051:
4049:
4046:
4044:
4041:
4039:
4036:
4034:
4031:
4029:
4026:
4024:
4021:
4019:
4016:
4014:
4011:
4009:
4006:
4004:
4001:
3999:
3996:
3994:
3991:
3989:
3986:
3984:
3981:
3979:
3976:
3974:
3971:
3969:
3966:
3964:
3961:
3959:
3956:
3954:
3951:
3949:
3946:
3944:
3941:
3939:
3936:
3934:
3931:
3929:
3926:
3924:
3921:
3919:
3916:
3914:
3911:
3909:
3906:
3904:
3901:
3899:
3896:
3894:
3891:
3889:
3886:
3884:
3881:
3879:
3876:
3874:
3871:
3869:
3866:
3864:
3861:
3859:
3856:
3854:
3851:
3849:
3846:
3844:
3841:
3839:
3836:
3834:
3831:
3829:
3826:
3824:
3821:
3819:
3816:
3814:
3811:
3809:
3806:
3804:
3801:
3799:
3796:
3794:
3791:
3789:
3786:
3784:
3781:
3779:
3776:
3774:
3771:
3769:
3766:
3764:
3761:
3759:
3756:
3754:
3751:
3749:
3746:
3744:
3741:
3739:
3736:
3734:
3731:
3729:
3726:
3724:
3721:
3719:
3716:
3714:
3711:
3709:
3706:
3704:
3701:
3699:
3696:
3694:
3691:
3689:
3686:
3684:
3681:
3679:
3676:
3674:
3671:
3669:
3666:
3664:
3661:
3659:
3656:
3654:
3651:
3649:
3646:
3644:
3641:
3639:
3636:
3634:
3631:
3629:
3626:
3624:
3621:
3619:
3616:
3614:
3611:
3609:
3606:
3604:
3601:
3599:
3596:
3594:
3591:
3589:
3586:
3584:
3581:
3579:
3576:
3574:
3571:
3569:
3566:
3564:
3561:
3559:
3556:
3554:
3551:
3549:
3546:
3544:
3541:
3539:
3536:
3534:
3531:
3529:
3526:
3524:
3521:
3519:
3516:
3514:
3511:
3509:
3506:
3504:
3501:
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3496:
3494:
3491:
3489:
3486:
3484:
3481:
3479:
3476:
3474:
3471:
3469:
3466:
3464:
3461:
3459:
3456:
3454:
3451:
3449:
3446:
3444:
3441:
3439:
3436:
3434:
3431:
3429:
3426:
3424:
3421:
3419:
3416:
3414:
3411:
3409:
3406:
3404:
3401:
3399:
3396:
3394:
3391:
3389:
3386:
3384:
3381:
3379:
3376:
3374:
3371:
3369:
3366:
3364:
3361:
3359:
3356:
3354:
3351:
3349:
3346:
3344:
3341:
3339:
3336:
3334:
3331:
3329:
3326:
3324:
3321:
3319:
3316:
3314:
3311:
3309:
3306:
3304:
3301:
3299:
3296:
3294:
3291:
3289:
3286:
3284:
3281:
3280:
3278:
3276:
3272:
3266:
3263:
3262:
3260:
3258:
3254:
3251:
3249:
3245:
3235:
3232:
3230:
3227:
3225:
3222:
3220:
3217:
3215:
3212:
3210:
3207:
3205:
3202:
3200:
3197:
3195:
3192:
3190:
3187:
3185:
3182:
3180:
3177:
3175:
3172:
3170:
3167:
3165:
3162:
3161:
3159:
3157:
3153:
3149:
3139:
3136:
3134:
3131:
3129:
3126:
3124:
3121:
3119:
3116:
3114:
3111:
3109:
3106:
3104:
3101:
3099:
3096:
3094:
3091:
3089:
3086:
3084:
3081:
3079:
3076:
3074:
3071:
3069:
3066:
3064:
3061:
3059:
3056:
3055:
3053:
3049:
3043:
3042:218566 (Ebla)
3040:
3038:
3035:
3033:
3030:
3028:
3025:
3023:
3020:
3018:
3015:
3013:
3010:
3008:
3005:
3003:
3000:
2999:
2997:
2995:
2991:
2985:
2982:
2980:
2977:
2975:
2972:
2970:
2967:
2966:
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2900:
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2890:
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2875:
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2866:
2863:
2861:
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2833:
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2828:
2826:
2823:
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2818:
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2813:
2811:
2808:
2806:
2803:
2801:
2798:
2796:
2793:
2791:
2788:
2786:
2783:
2781:
2778:
2776:
2773:
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2768:
2766:
2763:
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2741:
2738:
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2733:
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2728:
2726:
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2718:
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2713:
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2708:
2706:
2703:
2701:
2698:
2696:
2693:
2691:
2688:
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2681:
2678:
2676:
2673:
2671:
2668:
2666:
2663:
2661:
2658:
2656:
2653:
2651:
2648:
2646:
2643:
2641:
2638:
2636:
2633:
2631:
2628:
2626:
2623:
2621:
2618:
2616:
2613:
2611:
2608:
2606:
2603:
2601:
2598:
2596:
2593:
2591:
2588:
2586:
2583:
2581:
2578:
2576:
2573:
2571:
2568:
2566:
2563:
2561:
2558:
2556:
2553:
2551:
2548:
2546:
2543:
2541:
2538:
2536:
2533:
2531:
2528:
2526:
2523:
2521:
2518:
2516:
2513:
2511:
2508:
2506:
2503:
2501:
2498:
2496:
2493:
2491:
2488:
2486:
2483:
2481:
2478:
2476:
2473:
2471:
2468:
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2463:
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2458:
2457:
2455:
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2449:
2443:
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2438:
2435:
2433:
2430:
2428:
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2423:
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2413:
2410:
2408:
2405:
2403:
2400:
2398:
2395:
2393:
2390:
2388:
2385:
2383:
2380:
2378:
2375:
2373:
2370:
2368:
2365:
2363:
2360:
2358:
2355:
2353:
2350:
2348:
2345:
2343:
2340:
2338:
2335:
2333:
2330:
2328:
2325:
2323:
2320:
2318:
2315:
2314:
2312:
2310:
2306:
2303:
2301:
2297:
2291:
2288:
2286:
2283:
2282:
2279:
2275:
2268:
2263:
2261:
2256:
2254:
2249:
2248:
2245:
2241:
2227:
2223:
2219:
2215:
2205:on 2012-03-08
2204:
2200:
2199:
2194:
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1537:as "HD 3651".
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750:spectral type
747:
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723:
719:
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649:
648:main sequence
645:
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612:constellation
609:
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185:
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180:Proper motion
177:
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63:
62:
59:
56:
54:
53:Constellation
51:
50:
46:
42:
36:
29:
23:
4184:Pisces Dwarf
4149:Andromeda II
3229:54 Piscium b
3224:GU Piscium b
3128:van Maanen 2
2918:
2876:
2869:
2674:
2387:ο (Torcular)
2317:α (Alrescha)
2239:
2230:. Retrieved
2221:
2207:. Retrieved
2203:the original
2196:
2182:. Retrieved
2178:the original
2171:
2157:. Retrieved
2153:
2150:"54 Piscium"
2095:
2091:
2036:
2032:
2025:
1982:
1976:
1970:
1957:
1914:
1910:
1904:
1894:November 12,
1892:. Retrieved
1886:
1877:
1834:
1830:
1824:
1781:
1777:
1771:
1728:
1724:
1718:
1708:, retrieved
1704:the original
1699:
1690:
1679:. Retrieved
1669:
1666:"54 Piscium"
1660:
1617:
1613:
1555:
1551:
1496:
1492:
1430:
1426:
1369:
1365:
1359:
1314:
1313:(abstract).
1310:
1252:
1248:
1242:
1225:
1219:
1176:
1175:(abstract).
1172:
1140:
1136:
1077:
1071:
1065:
948:
932:Eccentricity
875:
868:
860:eccentricity
857:
841:
825:54 Piscium b
814:
802:
770:
766:Gliese 570 D
743:
738:54 Piscium b
711:
687:Sun's radius
664:
633:
610:away in the
604:orange dwarf
599:
598:
584:
573: 10224
569: 1116,
557: 3093,
553: 3651,
497:
470:
443:
423:
405:
390:
368:
353:
348:
328:
301:
281:
250:
229:
213:
178:
161:
143:
111:K0V / T7.5V
3219:γ Piscium b
3204:HD 217786 b
3194:HD 217107 b
2347:η (Alpherg)
1021:109 Piscium
1016:107 Piscium
937:Inclination
864:brown dwarf
817:Geoff Marcy
746:brown dwarf
734:brown dwarf
703:metallicity
691:CHARA array
660:photosphere
624:brown dwarf
608:light-years
561: 166,
545: 276,
534: 245,
499:Temperature
397:–0.15
392:Metallicity
370:Temperature
129:color index
118:color index
79:Declination
20:54 Piscium
4243:54 Piscium
4237:Categories
4164:I Zwicky 1
3156:Exoplanets
3063:Gliese 900
2342:ζ (Revati)
2232:2008-10-09
2209:2008-06-27
2198:Penn State
2184:2008-06-27
2159:2008-06-27
2154:SolStation
2105:1901.08471
1710:2012-01-16
1681:2018-10-24
1143:(99): 99.
1087:1804.09365
1037:References
795:surveys).
791:(based on
689:using the
675:luminosity
600:54 Piscium
549: 27,
417:4.0 d
360:4.61
352:(log
335:0.52
330:Luminosity
288:0.76
151:Astrometry
3184:HD 4313 b
3174:HD 4203 b
3169:HD 3167 b
3058:Gliese 12
2452:Flamsteed
2222:space.com
2132:118915974
2046:1307.0894
1992:0706.1962
1924:1211.2002
1869:119067572
1794:CiteSeerX
1565:0807.1686
1506:1006.4121
1467:119428437
1404:118565025
1379:1007.2681
1287:118577511
1262:0811.3982
1186:0901.1206
893:Companion
808:−56
430:6.4
144:Suspected
92: (V)
4224:Category
4179:Pisces B
4174:Pisces A
3248:Galaxies
3234:WASP-76b
2889:Variable
2226:Archived
2071:14109907
2039:(1): 2,
2017:14345035
1949:38743202
1816:18090744
1763:11800380
1652:11576708
1590:27151456
1351:15608344
1211:18370219
1010:See also
722:starspot
490:☉
463:☉
438:54 Psc B
407:Rotation
341:☉
321:☉
294:☉
276:54 Psc A
254: (M
231:Distance
215:Parallax
47:J2000.0
4204:UGC 934
4199:UGC 717
4194:UGC 477
4189:UGC 224
3257:Messier
3138:WASP-76
3118:NGC 730
3113:NGC 552
3108:NGC 408
3103:NGC 402
3098:NGC 401
3093:NGC 400
3088:NGC 316
3068:GJ 9827
2907:TX (19)
2110:Bibcode
2051:Bibcode
1997:Bibcode
1929:Bibcode
1849:Bibcode
1786:Bibcode
1743:Bibcode
1632:Bibcode
1570:Bibcode
1533:6708869
1511:Bibcode
1445:Bibcode
1384:Bibcode
1329:Bibcode
1267:Bibcode
1230:Bibcode
1191:Bibcode
1145:Bibcode
1092:Bibcode
848:Mercury
833:Jupiter
823:(named
762:Jupiter
658:of the
271:Details
45:Equinox
3083:NGC 46
3078:NGC 33
3037:217786
3032:217107
2800:91 (l)
2795:89 (f)
2780:82 (g)
2775:80 (e)
2735:68 (h)
2730:67 (k)
2720:65 (i)
2615:41 (d)
2570:32 (c)
2130:
2069:
2015:
1947:
1867:
1814:
1796:
1761:
1671:SIMBAD
1650:
1588:
1531:
1465:
1402:
1349:
1285:
1209:
1118:VizieR
1080:. A1.
983:62.250
962:
956:≥0.228
942:Radius
837:Saturn
679:radius
677:. The
616:Pisces
602:is an
586:SIMBAD
539:+20°85
528:54 Psc
511:
484:
472:Radius
457:
382:
315:
303:Radius
133:+0.85
122:+0.57
58:Pisces
4159:IC 64
4142:Other
3051:Other
2919:3 Ari
2878:5 Cet
2871:4 Cet
2480:7 (b)
2475:5 (A)
2309:Bayer
2300:Stars
2128:S2CID
2100:arXiv
2067:S2CID
2041:arXiv
2013:S2CID
1987:arXiv
1945:S2CID
1919:arXiv
1865:S2CID
1839:arXiv
1812:S2CID
1759:S2CID
1733:arXiv
1648:S2CID
1622:arXiv
1586:S2CID
1560:arXiv
1529:S2CID
1501:arXiv
1463:S2CID
1435:arXiv
1400:S2CID
1374:arXiv
1347:S2CID
1319:arXiv
1283:S2CID
1257:arXiv
1207:S2CID
1181:arXiv
1112:
1082:arXiv
992:0.645
987:0.004
978:0.029
974:0.295
960:0.011
871:Earth
482:0.006
478:0.082
455:0.014
451:0.051
376:5,062
313:0.033
309:0.944
199:Dec.:
96:5.88
41:Epoch
4133:7840
4128:7838
4123:7837
4118:7835
4113:7816
4108:7716
4103:7714
4098:7682
4093:7679
4088:7603
4083:7583
4078:7544
4073:7541
4068:7537
4063:7503
4058:7501
4053:7499
4048:7459
3027:9986
3017:4313
3012:4203
3007:3167
2984:8734
2917:VY (
1896:2012
1066:Gaia
996:0.02
925:days
901:Mass
852:days
829:mass
773:NASA
758:mass
697:and
671:mass
634:The
592:data
445:Mass
413:40.2
283:Mass
262:5.65
127:B−V
116:U−B
4043:766
4038:741
4033:706
4028:676
4023:665
4018:664
4013:660
4008:656
4003:645
3998:606
3993:575
3988:553
3983:532
3978:525
3973:524
3968:522
3963:520
3958:518
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3818:483
3813:479
3808:476
3803:475
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3758:463
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3558:338
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3528:313
3523:311
3518:296
3513:287
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3503:266
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3473:234
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3338:100
3275:NGC
2979:222
2974:107
2865:112
2860:109
2855:107
2850:105
2845:104
2840:103
2835:101
2830:100
2118:doi
2096:484
2059:doi
2037:208
2005:doi
1983:134
1937:doi
1915:334
1857:doi
1835:646
1804:doi
1782:590
1751:doi
1729:415
1640:doi
1618:654
1578:doi
1556:687
1519:doi
1497:408
1453:doi
1431:374
1392:doi
1370:720
1337:doi
1315:373
1275:doi
1253:501
1199:doi
1177:694
1116:at
1102:doi
1078:616
839:).
775:'s
760:of
754:Sun
707:dex
669:'s
667:Sun
614:of
571:LTT
567:LHS
563:SAO
555:HIP
543:FK5
532:NSV
505:810
432:Gyr
425:Age
399:dex
362:cgs
223:mas
217:(π)
203:mas
191:mas
187:RA:
182:(μ)
4239::
3333:99
3328:95
3323:78
3318:75
3313:63
3308:60
3303:57
3298:38
3293:36
3288:12
3265:74
2994:HD
2961:HR
2951:ZZ
2946:GU
2941:DV
2936:BR
2931:AR
2926:VZ
2912:UV
2902:SZ
2897:RZ
2825:97
2820:96
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2810:94
2805:92
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912:AU
559:HR
551:HD
547:GJ
541:,
537:BD
530:,
509:50
380:88
243:pc
238:ly
207:yr
195:yr
165:(R
3283:3
3209:c
3199:c
3179:c
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2470:3
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2397:ρ
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1201::
1193::
1183::
1151:.
1147::
1141:4
1120:.
1110:.
1104::
1094::
1084::
1064:"
994:±
985:±
976:±
968:J
965:M
958:±
950:b
927:)
923:(
914:)
910:(
740:.
513:K
507:±
487:R
480:±
460:M
453:±
415:±
384:K
378:±
356:)
354:g
338:L
318:R
311:±
291:M
258:)
256:V
245:)
205:/
193:/
169:)
167:v
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