From Wikipedia, the free encyclopedia
HD 91496
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Carina
Right ascension 10h 31m 02.057s [1]
Declination −73° 13′ 17.38″ [1]
Apparent magnitude (V) 4.92 [2]
Characteristics
Evolutionary stage giant
Spectral type K4/5 III [3]
Variable type suspected [4]
Astrometry
Radial velocity (Rv)13.14 [1] km/s
Proper motion (μ) RA: -7.00 [1]  mas/ yr
Dec.: 7.66 [1]  mas/ yr
Parallax (π)3.1223 ± 0.1500  mas [1]
Distance1,040 ± 50  ly
(320 ± 20  pc)
Absolute magnitude (MV)-2.55 [5]
Details
Mass6 [6]  M
Radius115 [1]  R
Luminosity2,787 [1]  L
Surface gravity (log g)1.34 [7]  cgs
Temperature3,915 [1]  K
Rotational velocity (v sin i)5.7 [8] km/s
Other designations
CD−72°614, HD 91496, HIP 51495, HR 4142, SAO 256723 [9]
Database references
SIMBAD data

HD 91496 (HR 4142) is a giant star in the constellation Carina, with an apparent magnitude is 4.92 and an MK spectral class of K4/5 III. It has been suspected of varying in brightness, but this has not been confirmed.

HD 91496 has a faint companion, six magnitudes fainter and 33 away. [10] It is a distant background star. [11]

References

  1. ^ a b c d e f g h i 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.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode: 2000A&A...355L..27H.
  3. ^ Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode: 1975mcts.book.....H.
  4. ^ 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.
  5. ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. S2CID  119257644.
  6. ^ Kervella, Pierre; Arenou, Frédéric; Mignard, François; Thévenin, Frédéric (2019). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy and Astrophysics. 623: A72. arXiv: 1811.08902. Bibcode: 2019A&A...623A..72K. doi: 10.1051/0004-6361/201834371. S2CID  119491061.
  7. ^ Kunder, Andrea; Kordopatis, Georges; Steinmetz, Matthias; Zwitter, Tomaž; McMillan, Paul J.; Casagrande, Luca; Enke, Harry; Wojno, Jennifer; Valentini, Marica; Chiappini, Cristina; Matijevič, Gal; Siviero, Alessandro; De Laverny, Patrick; Recio-Blanco, Alejandra; Bijaoui, Albert; Wyse, Rosemary F. G.; Binney, James; Grebel, E. K.; Helmi, Amina; Jofre, Paula; Antoja, Teresa; Gilmore, Gerard; Siebert, Arnaud; Famaey, Benoit; Bienaymé, Olivier; Gibson, Brad K.; Freeman, Kenneth C.; Navarro, Julio F.; Munari, Ulisse; et al. (2017). "The Radial Velocity Experiment (RAVE): Fifth Data Release". The Astronomical Journal. 153 (2): 75. arXiv: 1609.03210. Bibcode: 2017AJ....153...75K. doi: 10.3847/1538-3881/153/2/75. S2CID  118835808.
  8. ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv: 1312.3474. Bibcode: 2014A&A...561A.126D. doi: 10.1051/0004-6361/201220762. S2CID  54046583.
  9. ^ "HR 4142". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 August 2012.
  10. ^ Sinachopoulos, D.; Gavras, P.; Dionatos, O.; Ducourant, Ch.; Medupe, Th. (2007). "CCD astrometry and components instrumental magnitude difference of 432 Hipparcos wide visual double stars". Astronomy and Astrophysics. 472 (3): 1055. Bibcode: 2007A&A...472.1055S. doi: 10.1051/0004-6361:20066290. hdl: 11427/35072.
  11. ^ 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.
From Wikipedia, the free encyclopedia
HD 91496
Observation data
Epoch J2000.0       Equinox J2000.0
Constellation Carina
Right ascension 10h 31m 02.057s [1]
Declination −73° 13′ 17.38″ [1]
Apparent magnitude (V) 4.92 [2]
Characteristics
Evolutionary stage giant
Spectral type K4/5 III [3]
Variable type suspected [4]
Astrometry
Radial velocity (Rv)13.14 [1] km/s
Proper motion (μ) RA: -7.00 [1]  mas/ yr
Dec.: 7.66 [1]  mas/ yr
Parallax (π)3.1223 ± 0.1500  mas [1]
Distance1,040 ± 50  ly
(320 ± 20  pc)
Absolute magnitude (MV)-2.55 [5]
Details
Mass6 [6]  M
Radius115 [1]  R
Luminosity2,787 [1]  L
Surface gravity (log g)1.34 [7]  cgs
Temperature3,915 [1]  K
Rotational velocity (v sin i)5.7 [8] km/s
Other designations
CD−72°614, HD 91496, HIP 51495, HR 4142, SAO 256723 [9]
Database references
SIMBAD data

HD 91496 (HR 4142) is a giant star in the constellation Carina, with an apparent magnitude is 4.92 and an MK spectral class of K4/5 III. It has been suspected of varying in brightness, but this has not been confirmed.

HD 91496 has a faint companion, six magnitudes fainter and 33 away. [10] It is a distant background star. [11]

References

  1. ^ a b c d e f g h i 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.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode: 2000A&A...355L..27H.
  3. ^ Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode: 1975mcts.book.....H.
  4. ^ 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.
  5. ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. S2CID  119257644.
  6. ^ Kervella, Pierre; Arenou, Frédéric; Mignard, François; Thévenin, Frédéric (2019). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy and Astrophysics. 623: A72. arXiv: 1811.08902. Bibcode: 2019A&A...623A..72K. doi: 10.1051/0004-6361/201834371. S2CID  119491061.
  7. ^ Kunder, Andrea; Kordopatis, Georges; Steinmetz, Matthias; Zwitter, Tomaž; McMillan, Paul J.; Casagrande, Luca; Enke, Harry; Wojno, Jennifer; Valentini, Marica; Chiappini, Cristina; Matijevič, Gal; Siviero, Alessandro; De Laverny, Patrick; Recio-Blanco, Alejandra; Bijaoui, Albert; Wyse, Rosemary F. G.; Binney, James; Grebel, E. K.; Helmi, Amina; Jofre, Paula; Antoja, Teresa; Gilmore, Gerard; Siebert, Arnaud; Famaey, Benoit; Bienaymé, Olivier; Gibson, Brad K.; Freeman, Kenneth C.; Navarro, Julio F.; Munari, Ulisse; et al. (2017). "The Radial Velocity Experiment (RAVE): Fifth Data Release". The Astronomical Journal. 153 (2): 75. arXiv: 1609.03210. Bibcode: 2017AJ....153...75K. doi: 10.3847/1538-3881/153/2/75. S2CID  118835808.
  8. ^ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv: 1312.3474. Bibcode: 2014A&A...561A.126D. doi: 10.1051/0004-6361/201220762. S2CID  54046583.
  9. ^ "HR 4142". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 August 2012.
  10. ^ Sinachopoulos, D.; Gavras, P.; Dionatos, O.; Ducourant, Ch.; Medupe, Th. (2007). "CCD astrometry and components instrumental magnitude difference of 432 Hipparcos wide visual double stars". Astronomy and Astrophysics. 472 (3): 1055. Bibcode: 2007A&A...472.1055S. doi: 10.1051/0004-6361:20066290. hdl: 11427/35072.
  11. ^ 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.

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