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30:
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catalogue, it is likely a young stellar object that is gravitationally bound to its primary star. It is estimated to be approximately 15% the Sun's mass and 21% the Sun's radius. It has an effective temperature of about 3190 K, indicating that it is a
398:
VLT NACO image, taken in the Ks-band, of GQ Lupi. The feeble point of light to the right of the star is the newly found cold companion. It is 250 times fainter than the star itself and it located 0.73
1600:
721:
Astrometric and photometric monitoring of GQ Lupi and its sub-stellar companion, Ralph
Neuhaeuser, Markus Mugrauer, Andreas Seifahrt, Tobias Schmidt, and Nikolaus Vogt,
453:
In 2020, another low-mass companion of GQ Lupi was discovered at a separation distance of about 16 arcseconds, or 2400 AU. Designated 2MASS J15491331-3539118 under the
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The low-mass companion of GQ Lup, E.W. Guenther, R. Neuhaeuser, G. Wuchterl, M. Mugrauer, A. Bedalov, and P.H. Hauschildt,
800:
621:
1057:
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Alcalá, J. M.; et al. (2020). "2MASS J15491331-3539118: a new low-mass wide companion of the GQ Lup system".
446:
Working Group on
Extrasolar Planets described GQ Lupi b as a "possible planetary-mass companion to a young star."
1262:
608:
20:
662:
556:
Broeg, C.; Schmidt, T. O. B.; Guenther, E.; Gaedke, A.; Bedalov, A.; Neuhäuser, R.; Walter, F. M. (June 2007).
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769:, Kelly Young, April 4, 2005, NewScientist.com news service. Accessed on line June 13, 2008.
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807:, IAU Working Group on Extrasolar Planets, August 28, 2006. Accessed on line June 13, 2008.
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Is this a Brown Dwarf or an
Exoplanet? New Young Sub-stellar Companion Imaged with the VLT
84:
930:"Homogeneous comparison of directly detected planet candidates: GQ Lup, 2M1207, AB Pic"
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west. At the distance of GQ Lupi, this corresponds to a distance of roughly 100
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data), shows the long-term variability, and the inset plot (adapted from Broeg
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788:, ESO Press Release 09/05, April 7, 2005. Accessed on line June 13, 2008.
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442:, GQ Lupi b may or may not be considered a planet. As of 2006, the
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candidates to be directly imaged. The image was made with the
617:
Data
Release 2: Summary of the contents and survey properties"
383:
410:
In 2005, Ralph Neuhäuser and his colleagues reported a
51:) shows the short-term periodic brightness variation.
994:"Fresh Debate over First Photo of Extrasolar Planet"
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611:; et al. (Gaia collaboration) (August 2018).
956:"First image of exoplanet orbiting Sun-like star"
767:First image of exoplanet orbiting Sun-like star
1026:
697:Centre de données astronomiques de Strasbourg
382:. The star is young and has about 70% of the
102:−35° 39′ 05.0540″
8:
450:is listed as "confirmed planet" as in 2020.
1601:Planetary systems with one confirmed planet
62:J2000.0
1549:
1518:
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910:, #10 (December 2005), pp. 958–963.
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1621:Objects with variable star designations
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406:. North is up and East is to the left.
18:
752:From parallax and apparent magnitude.
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16:Star in the constellation of Lupus
14:
974:"Telescopes see 'distant planet'"
890:. Accessed on line June 13, 2008
817:openexoplanetcatalogue.com GQ Lup
418:, orbiting the star. Along with
41:for GQ Lupi. The main plot (from
1577:
1576:
992:Britt, Robert Roy (2005-04-30).
888:Extrasolar Planets Encyclopaedia
444:International Astronomical Union
28:
663:Gaia DR2 record for this source
228:6.5868 ± 0.0473
558:"Rotational period of GQ Lupi"
537:. The All Sky Automated Survey
1:
830:Astronomy & Astrophysics
622:Astronomy & Astrophysics
482:
475:
469:
422:, this was one of the first
954:Young, Kelly (2005-04-04).
932:. arXiv:astro-ph/0509906v1.
860:10.1051/0004-6361/201937309
798:Lists of Extrasolar Planets
728:, #1 (2008), pp. 281–291.
656:10.1051/0004-6361/201833051
462:with the spectral type M4.
1642:
1616:K-type main-sequence stars
1058:Lupus in Chinese astronomy
734:10.1051/0004-6361:20078493
723:Astronomy and Astrophysics
583:10.1051/0004-6361:20066793
562:Astronomy and Astrophysics
1574:
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905:Astronomische Nachrichten
535:"ASAS All Star Catalogue"
390:Possible planetary system
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26:
314:<2 million years
852:2020A&A...635L...1A
742:2008A&A...484..281N
646:2018A&A...616A...1G
574:2007A&A...468.1039B
334:−35°10525, GQ Lup
259:Absolute magnitude
109:Apparent magnitude
1626:Durchmusterung objects
1053:List of stars in Lupus
1042:Constellation of Lupus
928:R. Neuhaeuser (2005).
916:10.1002/asna.200510461
884:Planet : GQ Lup b
440:definition of a planet
407:
1606:Lupus (constellation)
397:
924:2005AN....326..958G
484:Observed separation
467:
466:The GQ Lupi system
432:Paranal Observatory
340:Database references
23:
803:2013-10-29 at the
784:2008-05-07 at the
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370:approximately 495
324:Other designations
147:Variable type
126:Spectral type
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424:extrasolar planet
412:substellar object
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1423:SSSPM J1549-3544
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365:T Tauri variable
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120:Characteristics
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57:Observation data
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1001:. Retrieved
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980:. 2005-04-04
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374:away in the
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48:
43:
1459:Lupus-TR-3b
1454:HIP 70849 b
937:"V* GQ Lup"
687:"V* GQ Lup"
372:light-years
137:color index
98:Declination
39:light curve
36:visual band
1595:Categories
1441:Exoplanets
1418:SAO 206462
1413:Lupus-TR-3
1403:Gliese 588
1003:2008-06-09
984:2008-06-09
965:2008-06-09
946:2008-06-13
843:2001.10879
636:1804.09365
541:8 December
521:References
400:arc second
159:Astrometry
1449:GQ Lupi b
1408:HIP 70849
1240:Flamsteed
998:SPACE.com
868:210942917
472:Companion
460:red dwarf
448:GQ Lupi b
416:GQ Lupi b
386:'s mass.
294:0.7
111: (V)
1582:Category
1562:NGC 5643
1554:Galaxies
1536:NGC 5882
1505:NGC 5986
1500:NGC 5927
1495:NGC 5824
1490:NGC 5822
1485:NGC 5749
1354:5825 (g)
1349:5724 (k)
1344:5651 (e)
1263:Variable
978:BBC News
801:Archived
782:Archived
702:June 13,
514:103 ± 37
300:☉
261: (M
238:Distance
222:Parallax
66:J2000.0
1531:IC 4406
1523:Nebulae
920:Bibcode
848:Bibcode
738:Bibcode
641:Bibcode
570:Bibcode
420:2M1207b
361:GQ Lupi
278:Details
202:−23.596
182:−14.257
64:Equinox
21:GQ Lupi
1387:142527
1382:134004
1311:KT (d)
941:SIMBAD
866:
836:: L1.
692:SIMBAD
667:VizieR
629:. A1.
347:SIMBAD
208:
200:
188:
180:
115:11.40
49:et al.
1396:Other
1253:2 (f)
1248:1 (i)
1077:Bayer
1068:Stars
864:S2CID
838:arXiv
661:
631:arXiv
505:1–36
455:2MASS
436:Chile
380:Lupus
363:is a
206:0.066
198:Dec.:
186:0.097
141:0.96
77:Lupus
60:Epoch
1364:5967
1359:5943
1339:5401
1334:5364
1316:V407
704:2008
615:Gaia
543:2021
478:Mass
368:star
353:data
289:Mass
135:B−V
130:K7V
44:ASAS
918:.
912:doi
908:326
856:doi
834:635
730:doi
726:484
665:at
651:doi
627:616
578:doi
566:468
430:at
384:Sun
378:of
309:Age
230:mas
224:(π)
210:mas
190:mas
178:RA:
173:(μ)
1597::
1374:HD
1326:HR
1306:IM
1301:IL
1296:II
1291:HR
1286:GQ
1281:GG
1276:EX
1271:RU
996:.
976:.
958:.
939:.
886:,
876:^
862:.
854:.
846:.
832:.
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736:.
712:^
695:.
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674:^
649:.
639:.
625:.
619:.
592:^
576:.
564:.
560:.
490:AU
434:,
414:,
404:AU
332:CD
269:~5
250:pc
245:ly
214:yr
194:yr
34:A
1230:ω
1225:ψ
1220:ψ
1215:χ
1210:φ
1205:φ
1200:υ
1195:τ
1190:τ
1185:σ
1180:ρ
1175:π
1170:ο
1165:ξ
1160:ξ
1155:ν
1150:ν
1145:μ
1140:λ
1135:κ
1130:κ
1125:ι
1120:θ
1115:η
1110:ζ
1105:ε
1100:δ
1095:γ
1090:β
1085:α
1034:e
1027:t
1020:v
1006:.
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968:.
949:.
922::
914::
870:.
858::
850::
840::
740::
732::
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669:.
659:.
653::
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586:.
580::
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545:.
509:J
507:M
500:b
492:)
488:(
297:M
265:)
263:V
252:)
212:/
204:±
192:/
184:±
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