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HD 150193
	; A visual band light curve for V2307 Ophiuchi, plotted from ASAS-SN data
Observation data; Epoch J2000 Equinox J2000
Constellation	Ophiuchus
	HD 150193A
Right ascension	16h 40m 17.9243s
Declination	−23° 53′ 45.193″
Apparent magnitude (V)	8.79
	HD 150193B
Right ascension	16h 40m 17.8688s
Declination	−23° 53′ 45.966″
Apparent magnitude (V)	12.3
Characteristics
HD 150193A
Spectral type	A1Ve
Variable type	Orion
HD 150193B
Spectral type	F9Ve
Variable type	T Tau
Astrometry
HD 150193A
Proper motion (μ)	RA: −4.935 mas/yr ; Dec.: −19.046 mas/yr
Parallax (π)	6.6313 ± 0.0211 mas
Distance	492 ± 2 ly ; (150.8 ± 0.5 pc)
HD 150193B
Proper motion (μ)	RA: −9.247 mas/yr ; Dec.: −18.250 mas/yr
Parallax (π)	6.7543 ± 0.1032 mas
Distance	483 ± 7 ly ; (148 ± 2 pc)
Position (relative to HD 150193A)
Component	HD 150193B
Angular distance	1.10±0.03″
Position angle	225.0±0.8°
Projected separation	166 AU
Details
HD 150193A
Mass	2.2 M☉
Radius	2.0 R☉
Luminosity	91.8±1.1 L☉
Surface gravity (log g)	4.11 cgs
Temperature	9,000 K
Rotation	1.317 d
Rotational velocity (v sin i)	100 km/s
Age	7+2; −1 Myr
HD 150193B
Mass	1.2±0.2 M☉
Luminosity	1.35 L☉
Temperature	6,166 K
Age	>10 Myr
Other designations
	CD−23°12887, HD 150193, HIP 81624, SAO 184536, GSC 06796-01287, 2MASS J16401792-2353452, V2307 Oph
Database references
SIMBAD	data

HD 150193 is a binary star system in the constellation of Ophiuchus. The primary star was identified as a Herbig Ae/Be star with a strong solar wind, losing approximately a tenth of solar mass per million years.^[6] It does host a very small debris disk, likely due to disk truncation by the nearby stellar companion.^[11] The disk is inclined 38±9° to the plane of sky. It appears to be highly evolved and asymmetric,^[12] with indications of flattening and grains growth.^[9]

The companion HD 150193B, is a T Tauri young star^[5] with a projected separation of 166 AU.^[9]

The binary HD 150193 is part of the Upper Scorpius subgroup of Scorpius–Centaurus star-forming region.^{[citation needed]}

References

^ "ASAS-SN Variable Stars Database". ASAS-SN Variable Stars Database. ASAS-SN. Retrieved 6 January 2022.
^ ^a ^b ^c ^d ^e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ ^a ^b "HD 150193". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 30 March 2021.
^ ^a ^b ^c ^d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ ^a ^b ^c ^d Carmona, A.; Van Den Ancker, M. E.; Henning, Th. (2007). "Optical spectroscopy of close companions to nearby Herbig Ae/Be and T Tauri stars". Astronomy & Astrophysics. 464 (2): 687–695. arXiv:astro-ph/0701208. Bibcode:2007A&A...464..687C. doi:10.1051/0004-6361:20065509. S2CID 14372262.
^ ^a ^b ^c ^d ^e ^f Pogodin, M.A.; Hubrig, S.; Yudin, R.V.; Schöller, M.; Gonzälez, J.F.; Stelzer, B. (2012). "Measuring the mass accretion rates of Herbig Ae/Be stars with X-shooter". Astronomische Nachrichten. 333 (7): 594–612. arXiv:1205.3732. Bibcode:2012AN....333..594P. doi:10.1002/asna.201211706. S2CID 118657267.
^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs. Bibcode:2009yCat....102025S.
^ ^a ^b ^c ^d ^e ^f Varga, J.; Ábrahám, P.; Chen, L.; Ratzka, Th.; Gabányi, K. É.; Kóspál, Á.; Matter, A.; Van Boekel, R.; Henning, Th.; Jaffe, W.; Juhász, A.; Lopez, B.; Menu, J.; Moór, A.; Mosoni, L.; Sipos, N. (2018). "VLTI/MIDI atlas of disks around low- and intermediate-mass young stellar objects". Astronomy & Astrophysics. 617: A83. arXiv:1805.02939. Bibcode:2018A&A...617A..83V. doi:10.1051/0004-6361/201832599. S2CID 119327628.
^ ^a ^b ^c Fukagawa, Misato; Tamura, Motohide; Itoh, Yoichi; Oasa, Yumiko; Kudo, Tomoyuki; Hayashi, Saeko S.; Kato, Eri; Ootsubo, Takafumi; Itoh, Yusuke; Shibai, Hiroshi; Hayashi, Masahiko (2010). "Subaru Near-Infrared Imaging of Herbig Ae Stars". Publications of the Astronomical Society of Japan. 62 (2): 347. Bibcode:2010PASJ...62..347F. doi:10.1093/pasj/62.2.347.
^ Hubrig, S.; Schöller, M.; Ilyin, I.; Cowley, C. R.; Mikulášek, Z.; Stelzer, B.; Pogodin, M. A.; Yudin, R. V.; Curé, M. (2011). "Characterising the magnetic fields of the Herbig Ae/Be stars HD 97048, HD 150193, HD 176386, and MWC 480". Astronomy and Astrophysics. 536: A45. arXiv:1111.2186. Bibcode:2011A&A...536A..45H. doi:10.1051/0004-6361/201117407. S2CID 18498467.
^ Monnier, John D.; Harries, Tim J.; Aarnio, Alicia; Adams, Fred C.; Andrews, Sean; Calvet, Nuria; Espaillat, Catherine; Hartmann, Lee; Hinkley, Sasha; Kraus, Stefan; McClure, Melissa; Oppenheimer, Rebecca; Perrin, Marshall; Wilner, David (2017). "Polarized Disk Emission from Herbig Ae/Be Stars Observed Using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142". The Astrophysical Journal. 838 (1): 20. arXiv:1702.04780. Bibcode:2017ApJ...838...20M. doi:10.3847/1538-4357/aa6248. S2CID 73586372.
^ Kluska, J.; Berger, J.-P.; Malbet, F.; Lazareff, B.; Benisty, M.; Le Bouquin, J.-B.; Absil, O.; Baron, F.; Delboulbé, A.; Duvert, G.; Isella, A.; Jocou, L.; Juhasz, A.; Kraus, S.; Lachaume, R.; Ménard, F.; Millan-Gabet, R.; Monnier, J. D.; Moulin, T.; Perraut, K.; Rochat, S.; Pinte, C.; Soulez, F.; Tallon, M.; Thi, W.-F.; Thiébaut, E.; Traub, W.; Zins, G. (2020). "A family portrait of disk inner rims around Herbig Ae/Be stars". Astronomy & Astrophysics. 636: A116. arXiv:2004.01594. Bibcode:2020A&A...636A.116K. doi:10.1051/0004-6361/201833774. S2CID 214795168.