39:
46:
1350:
Metcalfe, Travis S.; Van Saders, Jennifer L.; Basu, Sarbani; Buzasi, Derek; Drake, Jeremy J.; Egeland, Ricky; Huber, Daniel; Saar, Steven H.; Stassun, Keivan G.; Ball, Warrick H.; Campante, Tiago L.; Finley, Adam J.; Kochukhov, Oleg; Mathur, Savita; Reinhold, Timo; See, Victor; Baliunas, Sallie;
727:
The evolution of the parent star, nearing the conclusion of its life cycle, has been regarded as a model for the potential evolution of our planetary system. This is especially relevant for predicting whether the Sun will eventually engulf the Earth at the end of its own lifecycle (cf.
1801:
Beichman, C. A.; Bryden, G.; Rieke, G. H.; Stansberry, J. A.; Trilling, D. E.; Stapelfeldt, K. R.; Werner, M. W.; Engelbracht, C. W.; et al. (2005). "Planets and
Infrared Excesses: Preliminary Results from a Spitzer MIPS Survey of Solar-Type Stars".
1926:
Marshall, J. P.; Moro-Martín, A.; Eiroa, C.; Kennedy, G.; Mora, A.; Sibthorpe, B.; Lestrade, J.-F.; Maldonado, J.; et al. (2014). "Correlations between the stellar, planetary, and debris components of exoplanet systems observed by
Herschel".
713:'s. A paper published in 2011 supported this claim using a new reduction of the astrometric data, with an updated mass value of 169.7 times Jupiter, with a 3σ confidence region 100.1 to 199.6 Jupiter masses. Such a massive body would be a dim
1617:
Reffert, S.; Quirrenbach, A. (2011). "Mass constraints on substellar companion candidates from the re-reduced
Hipparcos intermediate astrometric data: nine confirmed planets and two confirmed brown dwarfs".
666:
G0V. The star is thought to have 96 percent of the Sun's mass, along with 1.3 times its radius and 1.7 times its luminosity. It may only be 51 to 65 percent as enriched with elements heavier than
1316:
Fuhrmann, Klaus; Pfeiffer, Michael J.; Bernkopf, Jan (1998). "F- and G-type stars with planetary companions: Upsilon
Andromedae, rho (1) Cancri, tau Bootis, 16 Cygni and rho Coronae Borealis".
2691:
574:
570:
724:
to rule out any stellar companions to this star, in addition to detecting a second planetary companion in a 102-day orbit. Another two planets were discovered in 2023.
396:
677:
The rotation period of Rho
Coronae Borealis is approximately 20 days, even though at this age stars are hypothesized to decouple their rotational evolution and
1992:
709:
satellite data indicated that the orbital inclination of the star's companion was 0.5°, nearly face-on, implying that its mass was as much as 115 times
2091:
1078:
2121:
2651:
1855:
Bryden, G.; Beichman, C. A.; Carpenter, J. M.; Rieke, G. H.; Stapelfeldt, K. R.; Werner, M. W.; Tanner, A. M.; Lawler, S. M.; et al. (2009).
1065:
at 24- or 70-micrometre wavelengths, which would be expected if a disk were present. No evidence for a disk was detected in observations with the
2661:
562:
1090:
1084:
2116:
2666:
1897:
1733:
2111:
2011:
546:
2681:
67:
1758:
Trilling, D. E.; Brown, R. H.; Rivkin, A. S. (2000). "Circumstellar Dust Disks around Stars with Known
Planetary Companions".
2676:
753:
578:
2084:
469:
2006:
696:
An extrasolar planet in a 39.8-day orbit around Rho
Coronae Borealis was discovered in 1997 by observing the star's
2656:
2646:
2436:
2426:
1066:
700:
variations. This detection method only gives a lower limit on the true mass of the companion. In 2001, preliminary
2283:
1677:
1506:
1175:
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2431:
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2168:
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2203:
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2148:
550:
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129:
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38:
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779:
245:
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2208:
1211:"EXPRES IV: Two Additional Planets Orbiting ρ Coronae Borealis Reveal Uncommon System Architecture"
784:
2031:
2316:
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2306:
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63:
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229:
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627:
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162:
88:
80:
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1700:
1593:
1546:
1427:
1378:
1289:
1238:
2571:
1881:
1856:
1523:
Noyes, Robert W.; et al. (1997). "A Planet
Orbiting the Star ρ Coronae Borealis".
766:
721:
538:
522:
237:
217:
201:
2630:
1787:
1709:
1672:
1562:
1500:
1396:
1264:"Stellar diameters and temperatures - V. 11 newly characterized exoplanet host stars"
1169:
663:
659:
623:
186:
75:
1718:
1657:
2069:
1966:
1841:
873:
337:
296:
1958:
1857:"Planets and Debris Disks: Results from a Spitzer/MIPS Search for Infrared Excess"
1649:
1491:
1452:
1160:
1121:
2272:
706:
426:
140:
101:
2049:
1387:
1352:
1247:
1210:
2606:
2601:
2596:
2591:
2586:
2380:
1984:
1001:
934:
812:
685:
643:
615:
350:
310:
252:
150:
1578:"Preliminary Astrometric Masses for Proposed Extrasolar Planetary Companions"
674:) and is likely somewhat older than the Sun at around ten billion years old.
2472:
2409:
2359:
2354:
1353:"Magnetic and Rotational Evolution of ρ CrB from Asteroseismology with TESS"
1298:
1263:
714:
702:
647:
554:
2016:
2531:
2526:
2521:
2516:
2511:
2390:
2375:
1816:
1537:
667:
511:
45:
2557:
2552:
2385:
710:
2494:
1510:
1179:
789:
639:
619:
593:
418:
323:
257:
1833:
1779:
1691:
1602:
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1554:
1473:
1436:
1411:
1369:
1229:
1142:
2480:
1941:
1632:
1280:
534:
684:
Multiple star catalogs list a 10th-magnitude companion about two
2395:
2131:
748:
671:
635:
221:
205:
2073:
772:
631:
460:
1457:
Data
Release 3. Summary of the content and survey properties"
1126:
Data
Release 3. Summary of the content and survey properties"
1734:"New Clues for What Will Happen When the Sun Eats the Earth"
1209:
Brewer, John M.; Zhao, Lily L.; et al. (June 2023).
1451:
Vallenari, A.; et al. (Gaia collaboration) (2023).
1120:
Vallenari, A.; et al. (Gaia collaboration) (2023).
1576:
Han, Inwoo; Black, David C.; Gatewood, George (2001).
2579:
2570:
2540:
2502:
2493:
2465:
2417:
2408:
2368:
2345:
2282:
2262:
2139:
2130:
1093:- Rho Coronae Borealis d and Rho Coronae Borealis e
720:In 2016, however, a paper was published that used
1985:"A Planet Orbiting the Star rho Coronae Borealis"
1671:Fulton, Benjamin J.; et al. (October 2016).
1268:Monthly Notices of the Royal Astronomical Society
1057:around the star. Follow-up observations with the
1898:"Catalog of withdrawn or refuted resolved Disks"
1673:"Three Temperate Neptunes Orbiting Nearby Stars"
688:away, but it is an unrelated background object.
2692:Planetary systems with four confirmed planets
2085:
106:+33° 18′ 12.6395″
8:
1204:
1202:
1200:
1198:
1196:
1194:
1192:
1190:
1188:
1993:Harvard-Smithsonian Center for Astrophysics
1412:"The Washington Visual Double Star Catalog"
630:. The star is thought to be similar to the
66:J2000.0
2576:
2499:
2414:
2136:
2092:
2078:
2070:
1345:
1343:
1341:
1339:
1311:
1309:
736:The Rho Coronae Borealis planetary system
1940:
1880:
1815:
1708:
1690:
1631:
1601:
1536:
1490:
1472:
1435:
1386:
1368:
1297:
1279:
1246:
1228:
1159:
1141:
1079:List of exoplanets discovered before 2000
16:Star in the constellation Corona Borealis
734:
55:Location of ρ Coronae Borealis (circled)
1902:Catalog of Resolved Circumstellar Disks
1262:von Braun, Kaspar; et al. (2014).
1103:
193:
25:
1115:
1113:
1111:
1109:
1107:
1091:List of exoplanets discovered in 2023
1085:List of exoplanets discovered in 2016
7:
2117:Corona Borealis in Chinese astronomy
1049:In October 1999, astronomers at the
2122:Hercules–Corona Borealis Great Wall
1989:Advanced Fiber Optic Echelle (AFOE)
209:
1410:Mason, B. D.; et al. (2014).
14:
1896:Caer McCabe & Carlotta Pham.
658:Rho Coronae Borealis is a yellow
610:(ρ CrB, ρ Coronae Borealis) is a
2112:List of stars in Corona Borealis
2101:Constellation of Corona Borealis
2012:Extrasolar Planets Encyclopaedia
236:57.1076 ± 0.0508
44:
37:
1507:Gaia DR3 record for this source
1176:Gaia DR3 record for this source
2652:Henry Draper Catalogue objects
646:. It is orbited by four known
1:
2662:Bright Star Catalogue objects
1053:announced the existence of a
1929:Astronomy & Astrophysics
1882:10.1088/0004-637X/705/2/1226
1620:Astronomy & Astrophysics
788:
783:
778:
765:
752:
747:
740:
1959:10.1051/0004-6361/201323058
1650:10.1051/0004-6361/201015861
1492:10.1051/0004-6361/202243940
1161:10.1051/0004-6361/202243940
670:(based on its abundance of
2708:
2667:G-type main-sequence stars
1710:10.3847/0004-637X/830/1/46
1461:Astronomy and Astrophysics
1318:Astronomy and Astrophysics
1130:Astronomy and Astrophysics
1067:Herschel Space Observatory
18:
2107:
1861:The Astrophysical Journal
1804:The Astrophysical Journal
1760:The Astrophysical Journal
1678:The Astrophysical Journal
1582:The Astrophysical Journal
1357:The Astrophysical Journal
586:
537: J16010264+3318124,
528:
521:
517:
290:
285:
281:
156:
149:
123:
60:
31:
2007:"Notes for star rho CrB"
1416:The Astronomical Journal
1388:10.3847/1538-4357/ac1f19
1248:10.3847/1538-3881/acdd6f
1216:The Astronomical Journal
1087:- Rho Coronae Borealis c
1081:- Rho Coronae Borealis b
19:Not to be confused with
1951:2014A&A...565A..15M
1732:O'Callaghan, Jonathan.
1642:2011A&A...527A.140R
1483:2023A&A...674A...1G
1330:1998A&A...336..942F
1152:2023A&A...674A...1G
1059:Spitzer Space Telescope
267:Absolute magnitude
113:Apparent magnitude
2682:Durchmusterung objects
2050:"Rho Coronae Borealis"
2032:"Rho Coronae Borealis"
1738:www.quantamagazine.org
1045:Circumstellar material
2677:Gliese and GJ objects
1525:Astrophysical Journal
1351:Soon, Willie (2021).
1299:10.1093/mnras/stt2360
1061:failed to detect any
1051:University of Arizona
634:with nearly the same
2442:ρ Coronae Borealis b
2437:ο Coronae Borealis b
2432:κ Coronae Borealis b
2427:ε Coronae Borealis b
744:(in order from star)
717:star, not a planet.
608:Rho Coronae Borealis
577: J16011+3318A,
2019:on November 6, 2007
1873:2009ApJ...705.1226B
1826:2005ApJ...622.1160B
1772:2000ApJ...529..499T
1701:2016ApJ...830...46F
1594:2001ApJ...548L..57H
1547:1997ApJ...483L.111N
1428:2001AJ....122.3466M
1379:2021ApJ...921..122M
1290:2014MNRAS.438.2413V
1239:2023AJ....166...46B
737:
587:Database references
581: J16010+3318A
470:Rotational velocity
256:(17.51 ± 0.02
28:
27:ρ Coronae Borealis
1055:circumstellar disk
735:
654:Stellar properties
523:Other designations
251:57.11 ± 0.05
130:Spectral type
26:
21:R Coronae Borealis
2657:Hipparcos objects
2647:Flamsteed objects
2624:
2623:
2620:
2619:
2566:
2565:
2489:
2488:
2404:
2403:
2396:XO-1 (Moldoveanu)
1042:
1041:
776:
763:
745:
679:magnetic activity
612:yellow dwarf star
605:
604:
2699:
2577:
2500:
2415:
2137:
2094:
2087:
2080:
2071:
2063:
2061:
2060:
2045:
2043:
2042:
2027:
2025:
2024:
2015:. Archived from
2002:
2000:
1999:
1971:
1970:
1944:
1923:
1917:
1916:
1914:
1913:
1904:. Archived from
1893:
1887:
1886:
1884:
1867:(2): 1226–1236.
1852:
1846:
1845:
1819:
1817:astro-ph/0412265
1810:(2): 1160–1170.
1798:
1792:
1791:
1755:
1749:
1748:
1746:
1744:
1729:
1723:
1722:
1712:
1694:
1668:
1662:
1661:
1635:
1614:
1608:
1607:
1605:
1573:
1567:
1566:
1540:
1538:astro-ph/9704248
1531:(2): L111–L114.
1520:
1514:
1504:
1494:
1476:
1448:
1442:
1441:
1439:
1407:
1401:
1400:
1390:
1372:
1347:
1334:
1333:
1313:
1304:
1303:
1301:
1283:
1274:(3): 2413–2425.
1259:
1253:
1252:
1250:
1232:
1206:
1183:
1173:
1163:
1145:
1117:
1029:
1028:
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1017:
1015:
1004:
999:
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977:
976:
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963:
953:
952:
951:
937:
932:
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910:
908:
901:
899:
892:
891:
890:
876:
871:
869:
849:
848:
847:
837:
835:
828:
826:
815:
810:
809:
808:
770:
757:
743:
738:
692:Planetary system
509:
507:
490:
488:
463:
458:
438:
436:
416:
414:
394:
392:
362:
360:
335:
333:
308:
306:
215:
211:
199:
195:
179:
177:
124:Characteristics
116:
96:
91:
61:Observation data
48:
41:
29:
2707:
2706:
2702:
2701:
2700:
2698:
2697:
2696:
2642:Corona Borealis
2627:
2626:
2625:
2616:
2612:RX J1532.9+3021
2572:Galaxy clusters
2562:
2536:
2485:
2461:
2400:
2364:
2341:
2278:
2258:
2126:
2103:
2098:
2067:
2058:
2056:
2048:
2040:
2038:
2030:
2022:
2020:
2005:
1997:
1995:
1983:
1980:
1975:
1974:
1925:
1924:
1920:
1911:
1909:
1895:
1894:
1890:
1854:
1853:
1849:
1800:
1799:
1795:
1757:
1756:
1752:
1742:
1740:
1731:
1730:
1726:
1670:
1669:
1665:
1616:
1615:
1611:
1575:
1574:
1570:
1522:
1521:
1517:
1450:
1449:
1445:
1409:
1408:
1404:
1349:
1348:
1337:
1315:
1314:
1307:
1261:
1260:
1256:
1208:
1207:
1186:
1119:
1118:
1105:
1100:
1075:
1063:infrared excess
1047:
1025:
1023:
1022:
1020:
1013:
1011:
1007:
1002:
995:
993:
973:
971:
970:
968:
961:
959:
958:
956:
949:
947:
946:
944:
940:
935:
928:
926:
906:
904:
897:
895:
888:
886:
885:
883:
879:
874:
867:
865:
845:
843:
842:
840:
833:
831:
824:
822:
818:
813:
806:
804:
803:
801:
769:
756:
742:
730:Future of Earth
698:radial velocity
694:
656:
628:Corona Borealis
582:
505:
503:
486:
484:
476: sin
456:
454:
434:
432:
412:
410:
390:
388:
378:Surface gravity
370:
367:
358:
356:
343:
340:
331:
329:
316:
313:
304:
302:
272:
255:
213:
208:
197:
175:
173:
168:
163:Radial velocity
111:
94:
89:Right ascension
87:
81:Corona Borealis
62:
56:
54:
53:
52:
51:
50:
49:
24:
17:
12:
11:
5:
2705:
2703:
2695:
2694:
2689:
2684:
2679:
2674:
2669:
2664:
2659:
2654:
2649:
2644:
2639:
2629:
2628:
2622:
2621:
2618:
2617:
2615:
2614:
2609:
2604:
2599:
2594:
2589:
2583:
2581:
2574:
2568:
2567:
2564:
2563:
2561:
2560:
2555:
2550:
2548:FSC 15307+3253
2544:
2542:
2538:
2537:
2535:
2534:
2529:
2524:
2519:
2514:
2508:
2506:
2497:
2491:
2490:
2487:
2486:
2484:
2483:
2481:XO-1b (Negoiu)
2478:
2475:
2469:
2467:
2463:
2462:
2460:
2459:
2454:
2449:
2444:
2439:
2434:
2429:
2423:
2421:
2412:
2406:
2405:
2402:
2401:
2399:
2398:
2393:
2388:
2383:
2378:
2372:
2370:
2366:
2365:
2363:
2362:
2360:145457 (Kamuy)
2357:
2351:
2349:
2343:
2342:
2340:
2339:
2334:
2329:
2324:
2319:
2314:
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2299:
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2279:
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2268:
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2260:
2259:
2257:
2256:
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2241:
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2226:
2221:
2216:
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2206:
2201:
2196:
2191:
2186:
2181:
2176:
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2166:
2161:
2156:
2151:
2145:
2143:
2134:
2128:
2127:
2125:
2124:
2119:
2114:
2108:
2105:
2104:
2099:
2097:
2096:
2089:
2082:
2074:
2065:
2064:
2046:
2028:
2003:
1979:
1978:External links
1976:
1973:
1972:
1918:
1888:
1847:
1834:10.1086/428115
1793:
1780:10.1086/308280
1766:(1): 499–505.
1750:
1724:
1663:
1609:
1603:10.1086/318927
1588:(1): L57–L60.
1568:
1555:10.1086/310754
1515:
1443:
1437:10.1086/323920
1402:
1335:
1305:
1254:
1184:
1102:
1101:
1099:
1096:
1095:
1094:
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1005:
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857:
856:
853:
850:
838:
829:
820:
816:
799:
793:
792:
787:
782:
777:
767:Orbital period
764:
754:Semimajor axis
751:
746:
722:interferometry
693:
690:
655:
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32:
15:
13:
10:
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2:
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2687:2MASS objects
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2683:
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2672:Solar analogs
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664:spectral type
661:
660:main-sequence
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629:
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624:constellation
621:
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187:Proper motion
184:
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90:
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85:
82:
79:
77:
76:Constellation
74:
73:
69:
65:
59:
47:
40:
30:
22:
2271:
2238:
2149:α (Alphecca)
2066:
2057:. Retrieved
2053:
2039:. Retrieved
2035:
2021:. Retrieved
2017:the original
2010:
1996:. Retrieved
1988:
1932:
1928:
1921:
1910:. Retrieved
1906:the original
1901:
1891:
1864:
1860:
1850:
1807:
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1796:
1763:
1759:
1753:
1741:. Retrieved
1737:
1727:
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1271:
1267:
1257:
1220:
1214:
1133:
1129:
1123:
1048:
988:
921:
860:
796:
780:Eccentricity
726:
719:
701:
695:
683:
676:
662:star of the
657:
607:
606:
592:
561: 5968,
549: 9537,
496:
477:
473:
468:
447:
425:
403:
381:
376:
349:
322:
295:
265:
244:
228:
214:−772.245(53)
198:−198.278(43)
185:
161:
2154:β (Nusakan)
1743:30 December
1626:. id.A140.
1422:(6): 3466.
785:Inclination
707:astrometric
686:arc-minutes
616:light-years
531:15 CrB
427:Metallicity
405:Temperature
141:color index
102:Declination
2631:Categories
2410:Exoplanets
2381:Gliese 611
2059:2008-07-03
2054:SolStation
2041:2008-07-03
2023:2008-07-03
1998:2008-07-03
1935:. id.A15.
1912:2010-04-03
1692:1607.00007
1474:2208.00211
1370:2108.01088
1363:(2): 122.
1230:2306.06888
1143:2208.00211
1098:References
648:exoplanets
644:luminosity
541:+33°2663,
491: km/s
380:(log
351:Luminosity
180: km/s
151:Astrometry
2473:GJ 3929 b
2264:Flamsteed
1942:1403.6186
1788:121999545
1685:(1): 46.
1633:1101.2227
1563:115606006
1501:244398875
1397:236881312
1281:1312.1792
1223:(2): 46.
1170:244398875
741:Companion
715:red dwarf
703:Hipparcos
459:1.8
115: (V)
2495:Galaxies
2391:NGC 6002
2376:ADS 9731
2284:Variable
1719:36666883
1658:54986291
1073:See also
1069:either.
668:hydrogen
449:Rotation
369:☉
342:☉
315:☉
269: (M
246:Distance
230:Parallax
70:J2000.0
2558:IC 4539
2553:IC 1166
2386:GJ 3929
2036:Jumk.de
1967:2804652
1947:Bibcode
1869:Bibcode
1842:6633656
1822:Bibcode
1768:Bibcode
1697:Bibcode
1638:Bibcode
1590:Bibcode
1543:Bibcode
1479:Bibcode
1424:Bibcode
1375:Bibcode
1326:Bibcode
1324:: 942.
1286:Bibcode
1235:Bibcode
1148:Bibcode
950:−0.0045
948:+0.0044
896:39.8438
889:−0.0024
887:+0.0023
711:Jupiter
620:parsecs
286:Details
68:Equinox
2355:140913
2273:23 Her
1965:
1840:
1786:
1717:
1656:
1561:
1511:VizieR
1499:
1467:: A1.
1395:
1180:VizieR
1168:
1136:: A1.
1000:
974:−0.054
972:+0.053
957:102.19
945:0.4206
933:
909:0.0025
900:0.0027
884:0.2245
872:
866:≥1.093
846:−0.078
844:+0.054
832:12.949
827:0.0011
823:0.1061
811:
790:Radius
642:, and
640:radius
618:(17.5
594:SIMBAD
510:
439:
417:
395:
363:
336:
324:Radius
309:
216:
212:
200:
196:
2580:Abell
2541:Other
2466:Other
2419:Bayer
2369:Other
2141:Bayer
2132:Stars
1963:S2CID
1937:arXiv
1838:S2CID
1812:arXiv
1784:S2CID
1715:S2CID
1687:arXiv
1654:S2CID
1628:arXiv
1559:S2CID
1533:arXiv
1505:
1497:S2CID
1469:arXiv
1393:S2CID
1365:arXiv
1276:arXiv
1225:arXiv
1174:
1166:S2CID
1138:arXiv
1021:282.2
1016:0.011
1012:0.827
994:≥21.6
969:0.096
962:−0.22
960:+0.27
927:≥28.2
905:0.038
870:0.023
841:0.126
836:0.014
807:−0.54
805:+0.53
802:≥3.79
614:57.1
567:ρ CrB
535:2MASS
433:−0.24
361:0.040
357:1.749
334:0.012
330:1.304
277:+4.21
210:Dec.:
174:17.88
145:0.61
119:5.39
64:Epoch
2607:2162
2602:2142
2597:2067
2592:2065
2587:2061
2532:6122
2527:6120
2522:6104
2517:6086
2512:6085
1745:2023
1455:Gaia
1124:Gaia
1032:0.0
1026:−3.7
1024:+2.2
773:days
749:Mass
672:iron
636:mass
600:data
575:CCDM
504:10.2
455:20.3
437:0.08
411:5817
393:0.05
389:4.25
307:0.01
303:0.95
297:Mass
178:0.12
139:B−V
134:G0V
2504:NGC
1955:doi
1933:565
1877:doi
1865:705
1830:doi
1808:622
1776:doi
1764:529
1705:doi
1683:830
1646:doi
1624:527
1598:doi
1586:548
1551:doi
1529:483
1509:at
1487:doi
1465:674
1432:doi
1420:122
1383:doi
1361:921
1322:336
1294:doi
1272:438
1243:doi
1221:166
1178:at
1156:doi
1134:674
998:2.5
931:1.5
732:).
632:Sun
626:of
579:WDS
571:SAO
563:LTT
555:HIP
512:Gyr
508:0.5
498:Age
489:0.3
485:0.8
441:dex
397:cgs
238:mas
232:(π)
218:mas
202:mas
194:RA:
189:(μ)
2633::
2347:HD
2337:UW
2332:TY
2327:RS
2322:RR
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2009:.
1991:.
1987:.
1961:.
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760:AU
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638:,
569:,
559:HR
551:HD
547:GJ
543:GC
539:BD
533:,
415:24
258:pc
253:ly
222:yr
206:yr
165:(R
2477:c
2457:e
2452:d
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2317:W
2312:V
2307:U
2302:T
2297:S
2292:R
2254:υ
2249:τ
2244:σ
2239:ρ
2234:π
2229:ο
2224:ξ
2219:ν
2214:ν
2209:μ
2204:λ
2199:κ
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
