V1094 Scorpii

V1094 Scorpii
Observation data Epoch J2000.0 Equinox J2000.0
Visual band light curves for V1094 Scorpii, adapted from Wichmann et al. (1998)^[1] and Joergens et al. (2001)^[2]
Constellation	Scorpius-Lupus
Right ascension	16^h 08^m 36.17701^s^[3]
Declination	−39° 23′ 02.4621″^[3]
Apparent magnitude (V)	13.48
Characteristics
Spectral type	K6V^[4]
Variable type	T Tauri-type?
Astrometry

Proper motion (μ)	RA: −9.830^[3] mas/yr Dec.: +23.435^[3] mas/yr
Parallax (π)	6.5086 ± 0.0452 mas^[3]
Distance	501 ± 3 ly (154 ± 1 pc)

Details^[4]

Mass	0.92 `M`_☉
Radius	1.9 `R`_☉
Luminosity	1.7 `L`_☉
Temperature	4,205 K
Age	2-3 Myr

Other designations
V1094 Sco, GSC 07855-01162, 2MASS J16083617-3923024
Database references
SIMBAD	data

V1094 Scorpii is a young stellar object in the constellation of Scorpius, located in the young Lupus Star Forming Region.^[5] It is being orbited by a protoplanetary disk that extends out to a distance of 300 AU from the host star. There are gaps at 100 AU and 170 AU, with bright rings at 130 AU and 220 AU.^[4]

Planetary system

Periodic radial velocity variations in the young star V1094 Scorpii had at first been explained by the presence of a substellar object in a tight orbit.^[6] Currently, the presence of a substellar object has been retracted, invoking starspots as the actual cause for observed radial velocity variations.^[2]

The V1094 Scorpii planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b (retracted)	≤24 M_J	≈0.065	7.2	?0	—	—

References

^ Wichmann, R.; Bouvier, J.; Allain, S.; Krautter, J. (February 1998). "Rotational evolution of pre-main sequence stars in Lupus". Astronomy and Astrophysics. 330: 521–532. Bibcode:1998A&A...330..521W. Retrieved 19 March 2022.
^ ^a ^b Joergens, V.; et al. (2001). "The T Tauri star RX J1608.6-3922 - not an eclipsing binary but a spotted single star". Astronomy and Astrophysics. 373 (3): 966–973. arXiv:astro-ph/0105326. Bibcode:2001A&A...373..966J. doi:10.1051/0004-6361:20010684. S2CID 17464041.
^ ^a ^b ^c ^d ^e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
^ ^a ^b ^c van Terwisga, S. E.; et al. (August 2018). "V1094 Scorpii: A rare giant multi-ringed disk around a T Tauri star". Astronomy & Astrophysics. 616: 10. arXiv:1805.03221. Bibcode:2018A&A...616A..88V. doi:10.1051/0004-6361/201832862. S2CID 118972266. A88.
^ Hughes, Joanne; et al. (1993). "The distance to the Lupus star formation region". The Astronomical Journal. 105 (2): 571–575. Bibcode:1993AJ....105..571H. doi:10.1086/116454.
^ Wichmann, R.; et al. (1997). "T Tauri stars and the Gould Belt near Lupus". Astronomy and Astrophysics. 326: 211–217. Bibcode:1997A&A...326..211W.

Constellation of Scorpius

Stars

Bayer	α (Antares) β (Acrab) δ (Dschubba) ε (Larawag) ζ¹ ζ² η θ (Sargas) ι¹ ι² κ (Girtab) λ (Shaula) μ¹ (Xamidimura) μ² (Pipirima) ν (Jabbah) ξ ο π (Fang) ρ (Iklil) σ (Alniyat) τ (Paikauhale) υ (Lesath) χ ψ ω¹ ω² G (Fuyue) H (β Nor) N (α Nor) Q
Flamsteed	1 (b) 2 (A) 3 4 11 12 (c¹) 13 (c²) 16 18 22 (i) 25 27
Variable	T U RR RS RV RY RZ AH AI AK AR BM CL FQ HK KQ V393 V453 V455 V482 V500 V636 V701 V703 V718 V728 V745 V760 V856 V861 V866 V884 V893 V900 V905 V906 V907 V911 V913 V915 V918 V919 V921 V922 V923 V929 V933 V949 V951 V952 V957 V965 V970 V973 V975 V992 V1003 V1007 V1018 V1026 V1033 V1034 V1036 V1040 V1051 V1058 V1068 V1073 (k) V1074 V1075 V1077 V1094 V1104 V1186 V1187 V1280 V1292 V1294 V1309
HR	5906 5910 5934 5965 5969 5973 5996 5998 5999 6000 6001 6003 6006 6007 6012 6015 6017 6044 6051 6053 6054 6061 6070 (d) 6076 6077 6078 6080 6094 6097 6100 6106 6122 6145 6160 6178 6192 6206 6209 6210 6211 6214 6218 6221 6244 6260 6266 6272 6273 6282 6298 6311 6316 6331 6338 6344 6366 6371 6381 6382 6389 6398 6403 6405 6409 6420 6454 6456 6460 6470 6501 6503 6517 6523 6539 6557 6558 6583 6587 6597 6613 6628 6643 6648 6649 6651 6653 6657 6658 6668 6671 6675 6678 6682 6683
HD	143567 144432 145377 146436 150248 150420 152424 153234 153950 (Rapeto) 155448 155985 158042 159868 162020
Other	Gliese 618 Gliese 667 Gliese 682 CD -35 11760 CD -38 10980 EPIC 204278916 EPIC 204376071 GCRT J1745−3009 GSC 06214-00210 GX 340+0 GX 349+2 H1-36 H1743-322 HIP 79431 (Sharjah) IGR J17091-3624 IGR J17252−3616 IRAS 17163−3907 K2-24 K2-33 LSS 4067 MOA-2008-BLG-310L MXB 1735-44 OAO 1657-415 OGLE-2005-BLG-071L OGLE-2005-BLG-390L OGLE-2006-BLG-109L Oph 162225-240515 Pismis 24-1 PSR B1620−26 PSR B1706−44 PSR B1737−30 PSR J1614−2230 Rapid Burster ROXs 12 1RXS J160929.1−210524 1RXS J170849.0−400910 Scorpius X-1 Th 28 Trumpler 27-1 Trumpler 27-27 Trumpler 27-28 Trumpler 27-102 Trumpler 27-105 4U 1700-37 4U 1702-42 4U 1705-44 4U 1724-307 4U 1728-34 4U 1746-371 UScoCTIO 108 VVV-WIT-07 WASP-17 (Dìwö) WR 86 WR 93b Wray 17-96 XTE J1720−318 XTE J1739−302 XTE J1751−305

Exoplanets	HD 145377 b HD 153950 b HD 159868 b HIP 78530 b HIP 79431 b K2-24b c K2-33b OGLE-2005-BLG-071Lb OGLE-2005-BLG-390Lb OGLE-2007-BLG-368Lb PSR B1620−26 b (Methuselah) WASP-17b V921 Scorpii b