Knowledge (XXG)

Pi Mensae

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Gandolfi, D.; Barragan, O.; Livingston, J.; Fridlund, M.; Justesen, A. B.; Redfield, S.; Fossati, L.; Mathur, S.; Grziwa, S.; Cabrera, J.; Garcia, R. A.; Persson, V.; van Eylen, V.; Hatzes, A. P.; Hidalgo, D.; Bugnet, L.; Cochran, W. D.; Csizmadia, Sz.; Deeg, H.; Eigmueller, Ph.; Endl, M.; Erikson,
725:. Since this is greater than 13 Jupiter masses, the object could be considered a brown dwarf, although more recent astrometric results suggest a slightly lower mass. Pi Mensae was ranked 100th on the list of top 100 target stars for the planned (but now-canceled) 1521:
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".
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Kunovac Hodžić, Vedad; Triaud, Amaury H M J.; Cegla, Heather M.; Chaplin, William J.; Davies, Guy R. (2021), "Orbital misalignment of the super-Earth π Men c with the spin of its star",
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are located on orbits mutually inclined by 49°−131° (1 sigma), which causes planet c to not transit most of the time, and acquire large misalignments with its host star's spin axis.
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Hatzes, Artie P.; et al. (2022), "A Radial Velocity Study of the Planetary System of π Mensae: Improved Planet Parameters for π Mensae c and a Third Planet on a 125 Day Orbit",
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Huber, Daniel; et al. (2022), "A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men C",
2077: 2623: 542: 1461: 2007:"Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions" 748:(TESS) submitted for publication. This was confirmed two days later, where the attention was called that the system is amenable for future planet atmospheric studies. 409: 2118: 1950: 1751:
Xuan, Jerry W.; Wyatt, Mark C. (2020), "Evidence for a high mutual inclination between the cold Jupiter and transiting super Earth orbiting π Men",
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of a third planet, Pi Mensae d, on a 125-day orbit was announced. Another 2022 study did not confirm this planet, but a 2023 study did detect it.
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Holmberg, J.; et al. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics",
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E.; Esposito, M.; Guenther, E.; Korth, J.; Luque, R.; Montanes-Rodriguez, P.; Nespral, D.; Nowak, G.; Paetzold, M.; Prieto-Arranz, J. (2019).
745: 2085: 2618: 2111: 2663: 526: 520: 2638: 31: 2643: 2628: 2599: 2104: 812: 1242:"Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample" 454: 687:, it would have disrupted the orbits of any Earth-like planets, and possibly thrown them into the star, or out into the 550: 546: 2061: 554: 2653: 1402:
Delgado Mena, E.; et al. (April 2015), "Li abundances in F stars: planets, rotation, and Galactic evolution",
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that takes approximately 2,151 days (5.89 years) to complete. Because of its eccentricity, and being a massive
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Damasso, M.; et al. (2020), "A precise architecture characterization of theπMensae planetary system",
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likely formed on a wide orbit, and then migrated inward under the gravitational influence of the planet or
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data yields a mass range for the companion to be anywhere from 10.27 to 29.9 times that
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Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars".
2508: 2436: 2390: 2195: 1094: 960: 868: 784:. It is likely to retain a portion of primordial, highly volatile atmosphere. 759: 722: 645: 633: 363: 323: 259: 157: 1775: 2413: 2369: 2288: 2283: 2278: 2273: 2268: 2263: 2258: 2230: 2225: 2220: 1813: 1702:"TESS's first planet: a super-Earth transiting the naked-eye star Pi Mensae" 696: 629: 1685: 744:
on a 6.27-day orbit around the star, the first exoplanet detection by the
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Laliotis, Katherine; Burt, Jennifer A.; et al. (February 2023).
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is one of the most massive planets ever discovered, and has a very
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range. In 2020, the true mass of Pi Mensae b was measured to be
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Data Release 3. Summary of the content and survey properties"
1946:"3D Selection of 167 Substellar Companions to Nearby Stars" 1944:
Feng, Fabo; Butler, R. Paul; et al. (August 2022).
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Vallenari, A.; et al. (Gaia collaboration) (2023).
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Communications of the Lunar and Planetary Laboratory
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in exceptionally dark, clear skies. It is nearly 60
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(July 2006). 18: 746:Transiting Exoplanet Survey Satellite 628:is 5.67, which can be visible to the 7: 216: 2063:The Extrasolar Planet Encyclopedia 1346:Bonfanti, A.; et al. (2015). 14: 1636:The Astrophysical Journal Letters 2595: 2594: 1494:10.1046/j.1365-8711.2002.05459.x 243:54.6825 ± 0.0354  1189:Gaia DR3 record for this source 795:The Pi Mensae planetary system 16:Star in the constellation Mensa 2649:Henry Draper Catalogue objects 787:In 2022, the discovery by the 1: 2659:Bright Star Catalogue objects 740:detailing the discovery of a 668:was found orbiting the star. 1706:Astronomy & Astrophysics 1577:Astronomy & Astrophysics 1524:Astronomy & Astrophysics 1404:Astronomy & Astrophysics 847: 842: 837: 824: 811: 806: 799: 694:Incorporating more accurate 1737:10.1051/0004-6361/201834289 1607:10.1051/0004-6361/202038416 1554:10.1051/0004-6361/201015861 1455:Jones; et al. (2002). 1434:10.1051/0004-6361/201425433 1385:10.1051/0004-6361/201424951 1325:10.1051/0004-6361/200811191 1174:10.1051/0004-6361/202243940 2680: 2619:G-type main-sequence stars 1352:Astronomy and Astrophysics 1295:Astronomy and Astrophysics 1143:Astronomy and Astrophysics 751:In 2020, an analysis with 2592: 2495: 2449: 2408: 2134: 732:On September 16, 2018, a 727:Terrestrial Planet Finder 568: 506: 499: 495: 303: 298: 294: 163: 156: 87: 24: 2664:TESS Objects of Interest 2044:10.3847/1538-3881/acc067 2012:The Astronomical Journal 1983:10.3847/1538-4365/ac7e57 1920:10.3847/1538-3881/ac5dcb 1889:The Astronomical Journal 1863:10.3847/1538-3881/ac3000 1832:The Astronomical Journal 1667:10.3847/2041-8213/aaef91 1246:The Astronomical Journal 683:that passes through the 664:On October 15, 2001, an 1728:2018A&A...619L..10G 1599:2020A&A...642A..31D 1546:2011A&A...527A.140R 1426:2015A&A...576A..69D 1375:2015A&A...575A..18B 1317:2009A&A...501..941H 1165:2023A&A...674A...1G 620:. This star has a high 604:(π Men), also known as 274:Absolute magnitude 77:Apparent magnitude 2639:Durchmusterung objects 2566:Large Magellanic Cloud 2139:List of stars in Mensa 2128:Constellation of Mensa 1776:10.1093/mnras/staa2033 789:radial velocity method 2644:Gliese and GJ objects 2629:Mensa (constellation) 1814:10.1093/mnras/stab237 803:(in order from star) 762:showed that planets 2437:HD 38283 b (Yanyan) 2035:2023AJ....165..176L 1974:2022ApJS..262...21F 1911:2022AJ....163..223H 1854:2022AJ....163...79H 1658:2018ApJ...868L..39H 1485:2002MNRAS.333..871J 1269:2006AJ....132..161G 1224:1966CoLPL...4...99J 1105:Lists of exoplanets 796: 689:interstellar medium 569:Database references 455:Rotational velocity 263:(18.29 ± 0.01  21: 794: 626:apparent magnitude 501:Other designations 258:59.65 ± 0.04  148:Variable type 94:Spectral type 19: 2654:Hipparcos objects 2606: 2605: 2588: 2587: 2522: 2521: 2491: 2490: 2445: 2444: 2404: 2403: 1086: 1085: 835: 822: 804: 666:extrasolar planet 599: 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348: 346: 321: 319: 290: 288: 222: 218: 206: 202: 186: 184: 88:Characteristics 80: 60: 55: 25:Observation data 22: 2679: 2678: 2674: 2673: 2672: 2670: 2669: 2668: 2609: 2608: 2607: 2602: 2584: 2554: 2518: 2487: 2441: 2400: 2374: 2336: 2293: 2240: 2143: 2130: 2125: 2094: 2058: 2053: 2052: 2004: 2003: 1999: 1943: 1942: 1935: 1886: 1885: 1878: 1829: 1828: 1821: 1788: 1787: 1783: 1750: 1749: 1745: 1698: 1697: 1693: 1629: 1628: 1621: 1574: 1573: 1569: 1520: 1519: 1515: 1454: 1453: 1449: 1401: 1400: 1393: 1345: 1344: 1340: 1292: 1291: 1287: 1239: 1238: 1231: 1209: 1208: 1199: 1132: 1131: 1118: 1113: 1091: 1072: 1070: 1069: 1067: 1060: 1058: 1057: 1055: 1048: 1044: 1042: 1035: 1033: 1032: 1030: 1026: 1021: 1014: 1012: 1011: 1009: 987: 985: 978: 976: 975: 973: 966: 961: 954: 952: 940: 935: 928: 926: 925: 923: 913: 911: 902: 898: 895: 893: 887: 883: 880: 878: 874: 869: 862: 860: 828: 815: 801: 719: 716: 709: 662: 564: 558: 519: 512: 483: 481: 461: sin  425: 423: 403: 401: 391:Surface gravity 383: 380: 371: 369: 356: 353: 344: 342: 329: 326: 317: 315: 286: 284: 279: 262: 220: 215: 204: 182: 180: 175: 170:Radial velocity 75: 58: 53:Right ascension 51: 26: 17: 12: 11: 5: 2677: 2675: 2667: 2666: 2661: 2656: 2651: 2646: 2641: 2636: 2631: 2626: 2621: 2611: 2610: 2604: 2603: 2593: 2590: 2589: 2586: 2585: 2583: 2582: 2577: 2562: 2560: 2556: 2555: 2553: 2552: 2547: 2541: 2539: 2530: 2524: 2523: 2520: 2519: 2517: 2516: 2511: 2505: 2503: 2493: 2492: 2489: 2488: 2486: 2485: 2480: 2475: 2470: 2465: 2459: 2457: 2447: 2446: 2443: 2442: 2440: 2439: 2434: 2429: 2424: 2418: 2416: 2406: 2405: 2402: 2401: 2399: 2398: 2396:WISE 0535−7500 2393: 2388: 2382: 2380: 2376: 2375: 2373: 2372: 2367: 2362: 2357: 2352: 2346: 2344: 2338: 2337: 2335: 2334: 2329: 2324: 2319: 2314: 2309: 2303: 2301: 2295: 2294: 2292: 2291: 2286: 2281: 2276: 2271: 2266: 2261: 2256: 2250: 2248: 2242: 2241: 2239: 2238: 2233: 2228: 2223: 2218: 2213: 2208: 2203: 2198: 2193: 2188: 2183: 2178: 2173: 2168: 2162: 2160: 2151: 2145: 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910: 907: 892: 877: 875: 859: 857: 854: 853: 850: 845: 840: 833: 827: 820: 814: 809: 798: 792: 790: 785: 783: 780: 776: 771: 769: 765: 761: 758: 754: 749: 747: 743: 739: 735: 730: 728: 724: 720: 707: 703: 699: 698: 692: 690: 686: 682: 678: 675: 671: 667: 659: 657: 655: 651: 647: 643: 639: 635: 631: 627: 623: 622:proper motion 619: 615: 614:constellation 611: 607: 603: 595: 592: 590: 587: 586: 583: 580: 578: 577: 573: 572: 567: 561: 556: 552: 548: 544: 540: 537: 26394, 536: 533: 39091, 532: 528: 523:−80° 161 522: 516:−80° 195 515: 510: 505: 502: 498: 494: 491: 480: 478: 477: 473: 472: 468: 466: 464: 460: 456: 452: 451: 448: 444: 442: 441: 437: 436: 433: 422: 420: 419: 415: 414: 411: 400: 398: 396: 392: 388: 387: 384: 368: 366: 365: 361: 360: 357: 341: 339: 338: 334: 333: 330: 314: 312: 311: 307: 306: 302: 297: 293: 283: 281: 275: 271: 270: 266: 261: 257: 255: 254: 250: 249: 246: 242: 240: 238: 234: 233: 230: 226: 214: 210: 199: 197: 195: 194:Proper motion 191: 190: 179: 177: 171: 167: 166: 162: 159: 155: 151: 149: 146: 145: 141: 139: 135: 134: 130: 128: 124: 123: 119: 117: 113: 112: 108: 106: 102: 101: 97: 95: 92: 91: 86: 82: 78: 74: 73: 69: 67: 64: 63: 57: 54: 50: 49: 46: 43: 41: 40:Constellation 38: 37: 33: 29: 23: 2580:PKS 0637-752 2572:, partly in 2235: 2093: 2086: 2078: 2070: 2062: 2016: 2010: 2000: 1955: 1949: 1892: 1888: 1835: 1831: 1794: 1790: 1784: 1756: 1752: 1746: 1709: 1705: 1694: 1639: 1635: 1580: 1576: 1570: 1527: 1523: 1516: 1509:web Preprint 1466: 1460: 1450: 1407: 1403: 1355: 1351: 1341: 1298: 1294: 1288: 1249: 1245: 1215: 1211: 1146: 1142: 1136: 1002: 946: 855: 839:Eccentricity 786: 772: 756: 750: 731: 695: 693: 663: 640:in terms of 610:G-dwarf star 605: 601: 600: 588: 574: 557: 2359, 541: 2022, 529: 9189, 474: 462: 458: 453: 438: 416: 394: 389: 362: 335: 308: 272: 251: 235: 192: 168: 2568:(mostly in 2089:: Pi Mensae 2081:: Pi Mensae 2073:: Pi Mensae 1530:. id.A140. 844:Inclination 779:brown dwarf 742:super-Earth 706:brown dwarf 681:brown dwarf 670:Pi Mensae b 654:metallicity 650:temperature 634:light-years 553: 208, 549: 429, 440:Metallicity 418:Temperature 138:color index 127:color index 116:color index 105:color index 66:Declination 2613:Categories 2509:Henize 206 2422:π Mensae b 2414:Exoplanets 2071:Solstation 2065:: HD 39091 2026:2302.10310 2019:(4): 176. 1965:2208.12720 1958:(21): 21. 1902:2203.01018 1895:(5): 223, 1845:2108.09109 1804:2007.11564 1766:2007.01871 1719:1809.07573 1712:(1): L10. 1649:1809.05967 1642:(2): L39. 1590:2007.06410 1218:(99): 99. 1156:2208.00211 1111:References 1095:Gliese 777 760:astrometry 723:astrometry 702:of Jupiter 646:luminosity 509:π Men 445:0.09  393:(log  364:Luminosity 187: km/s 158:Astrometry 98:G0 V 20:Pi Mensae 1992:251864022 1929:247218413 1872:237259938 1838:(2): 79, 1615:220496034 1537:1101.2227 1417:1412.4618 1365:1411.4302 1333:118577511 1308:0811.3982 1183:244398875 800:Companion 757:Hipparcos 697:Hipparcos 674:eccentric 630:naked eye 602:Pi Mensae 221:1,049.060 79: (V) 2600:Category 2528:Galaxies 2514:NGC 2122 2483:NGC 2000 2478:NGC 1987 2473:NGC 1986 2468:NGC 1959 2463:NGC 1943 2246:Variable 1686:31360431 1562:54986291 1442:56051637 1100:HD 70642 1089:See also 753:Gaia DR2 734:preprint 644:, size, 606:HD 39091 382:☉ 355:☉ 328:☉ 276: (M 253:Distance 237:Parallax 34:J2000.0 2501:Nebulae 2031:Bibcode 1970:Bibcode 1907:Bibcode 1850:Bibcode 1724:Bibcode 1677:6662726 1654:Bibcode 1595:Bibcode 1583:: A31, 1542:Bibcode 1503:7583247 1481:Bibcode 1422:Bibcode 1370:Bibcode 1358:. A18. 1313:Bibcode 1264:Bibcode 1220:Bibcode 1161:Bibcode 1061:−0.0006 1059:+0.0007 773:Planet 612:in the 608:, is a 299:Details 205:310.909 32:Equinox 2574:Hydrus 2570:Dorado 2370:268835 2087:ARICNS 2079:SIMBAD 1990:  1927:  1870:  1684:  1674:  1613:  1560:  1501:  1444:, A69. 1440:  1410:: 24, 1331:  1193:VizieR 1181:  1149:: A1. 1073:−3.719 1071:+5.945 1068:54.436 1036:−0.148 1034:+0.134 1019:  1015:−1.384 1013:+1.192 1010:12.325 974:124.64 959:  933:  929:−0.042 927:+0.037 867:  849:Radius 712:  624:. The 589:ARICNS 576:SIMBAD 488:  430:  408:  376:  349:  337:Radius 322:  223:  219:  207:  203:  83:+5.65 2559:Other 2379:Other 2365:42936 2360:39194 2350:35184 2158:Bayer 2149:Stars 2021:arXiv 1988:S2CID 1960:arXiv 1925:S2CID 1897:arXiv 1868:S2CID 1840:arXiv 1799:arXiv 1761:arXiv 1714:arXiv 1644:arXiv 1611:S2CID 1585:arXiv 1558:S2CID 1532:arXiv 1499:S2CID 1471:arXiv 1438:S2CID 1412:arXiv 1360:arXiv 1329:S2CID 1303:arXiv 1254:arXiv 1187: 1179:S2CID 1151:arXiv 1056:0.642 1031:3.311 990:0.079 986:0.220 979:−0.52 977:+0.48 953:13.38 924:2.131 912:87.05 901:0.000 894:6.267 886:0.000 879:0.068 738:arXiv 677:orbit 618:Mensa 424:6,013 374:0.004 370:1.532 285:+4.35 217:Dec.: 181:10.71 152:none 142:0.29 131:0.31 120:0.60 109:0.11 45:Mensa 28:Epoch 2550:2144 2545:2012 2332:1700 2327:1682 2322:1606 2317:1531 2312:1154 2307:1109 1682:PMID 1137:Gaia 957:1.35 916:0.15 865:0.38 861:3.63 832:days 808:Mass 766:and 755:and 721:via 710:14.1 652:and 642:mass 594:data 582:data 562:-144 406:0.01 402:4.35 347:0.01 343:1.15 320:0.01 316:1.11 310:Mass 289:0.01 185:0.12 136:R−I 125:V−R 114:B−V 103:U−B 2537:NGC 2391:R71 2039:doi 2017:165 1978:doi 1956:262 1915:doi 1893:163 1858:doi 1836:163 1809:doi 1795:502 1771:doi 1757:497 1732:doi 1710:619 1672:PMC 1662:doi 1640:868 1603:doi 1581:642 1550:doi 1528:527 1489:doi 1467:333 1430:doi 1408:576 1380:doi 1356:575 1321:doi 1299:501 1274:doi 1250:132 1191:at 1169:doi 1147:674 1051:0.4 1045:088 903:016 896:852 638:Sun 616:of 560:TOI 555:LTT 551:LHS 547:LFT 543:SAO 535:HIP 521:CPD 490:Gyr 486:0.6 482:3.4 476:Age 447:dex 410:cgs 245:mas 239:(π) 225:mas 209:mas 201:RA: 196:(μ) 2615:: 2342:HD 2299:HR 2289:AO 2284:AH 2279:YY 2274:UX 2269:TZ 2264:TY 2259:TU 2037:. 2029:. 2015:. 2009:. 1986:. 1976:. 1968:. 1954:. 1948:. 1936:^ 1923:, 1913:, 1905:, 1891:, 1879:^ 1866:, 1856:, 1848:, 1834:, 1822:^ 1807:, 1793:, 1769:, 1755:, 1730:. 1722:. 1708:. 1704:. 1680:. 1670:. 1660:. 1652:. 1638:. 1634:. 1622:^ 1609:, 1601:, 1593:, 1579:, 1556:. 1548:. 1540:. 1526:. 1497:. 1487:. 1479:. 1465:. 1459:. 1436:, 1428:, 1420:, 1406:, 1394:^ 1378:. 1368:. 1354:. 1350:. 1327:, 1319:, 1311:, 1297:, 1272:. 1262:. 1248:. 1244:. 1232:^ 1214:. 1200:^ 1177:. 1167:. 1159:. 1145:. 1141:. 1119:^ 1082:— 1047:.8 997:— 994:— 970:— 965:🜨 939:🜨 908:0 888:50 881:39 873:🜨 819:AU 691:. 648:, 539:HR 531:HD 527:GJ 525:, 518:, 514:CD 511:, 428:18 265:pc 260:ly 229:yr 213:yr 172:(R 2576:) 2432:d 2427:c 2254:W 2236:π 2231:ξ 2226:ν 2221:μ 2216:λ 2211:κ 2206:ι 2201:θ 2196:η 2191:ζ 2186:ε 2181:δ 2176:γ 2171:β 2166:α 2120:e 2113:t 2106:v 2047:. 2041:: 2033:: 2023:: 1994:. 1980:: 1972:: 1962:: 1917:: 1909:: 1899:: 1860:: 1852:: 1842:: 1811:: 1801:: 1773:: 1763:: 1740:. 1734:: 1726:: 1716:: 1688:. 1664:: 1656:: 1646:: 1605:: 1597:: 1587:: 1564:. 1552:: 1544:: 1534:: 1511:) 1507:( 1505:. 1491:: 1483:: 1473:: 1432:: 1424:: 1414:: 1388:. 1382:: 1372:: 1362:: 1335:. 1323:: 1315:: 1305:: 1282:. 1276:: 1266:: 1256:: 1226:. 1222:: 1216:4 1195:. 1185:. 1171:: 1163:: 1153:: 1135:" 1078:° 1049:± 1043:2 1025:J 1022:M 1004:b 988:± 962:M 955:± 951:≥ 947:d 936:R 919:° 914:± 899:± 884:± 870:M 863:± 856:c 834:) 830:( 821:) 817:( 782:b 775:c 768:c 764:b 718:J 715:M 484:± 465:) 463:i 459:v 457:( 432:K 426:± 404:± 397:) 395:g 379:L 372:± 352:R 345:± 325:M 318:± 287:± 280:) 278:V 267:) 227:/ 211:/ 183:± 176:) 174:v

Index

Epoch
Equinox
Constellation
Mensa
Right ascension
Declination
Apparent magnitude
Spectral type
color index
color index
color index
color index
Variable type
Astrometry
Radial velocity
Proper motion
mas
yr
mas
yr
Parallax
mas
Distance
ly
pc
Absolute magnitude
Mass
M
Radius
R

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