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74 Orionis

October 15, 2023

This article is about k Orionis. It is not to be confused with κ Orionis.

74 Orionis is a single[10] star in the equatorial constellation of Orion. It has the Bayer designation k Orionis, while 74 Orionis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white hued point of light with an apparent visual magnitude of 5.04.[2] It is located at a distance of 64 light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of +9 km/s.[5] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.204 arc seconds per annum.[11]

74 Orionis
Observation data
Epoch J2000      Equinox J2000
Constellation Orion
Right ascension 06h 16m 26.61878s[1]
Declination 12° 16′ 19.7909″[1]
Apparent magnitude (V) 5.04[2]
Characteristics
Evolutionary stage main sequence
Spectral type F5V[3]
U−B color index -0.02[4]
B−V color index +0.42[4]
Astrometry
Radial velocity (Rv)+9.17[5] km/s
Proper motion (μ) RA: +83.102[1] mas/yr
Dec.: +186.263[1] mas/yr
Parallax (π)51.1930 ± 0.1907 mas[1]
Distance63.7 ± 0.2 ly
(19.53 ± 0.07 pc)
Absolute magnitude (MV)3.62[2]
Details
Mass1.39[6] M☉
Radius1.3[7] R☉
Luminosity3.02[2] L☉
Surface gravity (log g)4.34[6] cgs
Temperature6,595[6] K
Metallicity [Fe/H]-0.03[2] dex
Rotational velocity (v sin i)18.8[8] km/s
Age2.316[6] Gyr
Other designations
k Ori, 74 Ori, BD+12°1084, FK5 1169, GC 8033, GJ 9207, HD 43386, HIP 29800, HR 2241, SAO 95476, CCDM J06165+1216A, WDS J06164+1216A, LTT 11823[9]
Database references
SIMBADdata

This object is an ordinary F-type main-sequence star with a stellar classification of F5V.[3] It is an estimated 2.3[6] billion years old and is spinning with a projected rotational velocity of 18.8 km/s.[8] The star has 1.4[6] times the mass of the Sun and 1.3[7] times the Sun's radius. Metallicity is near solar,[2] which indicates it has a Sun-like abundances of elements. The star is radiating three[2] times the luminosity of the Sun from its photosphere at an effective temperature of 6,595 K.[6]

74 Orionis has two visual companions: component B, with magnitude 12.5 and separation 32.1", and C, with magnitude 9.0 and separation 195.5".[12]

References Edit

  1. ^ a b c d e f 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. ^ a b c d e f g 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. Vizier catalog entry
  3. ^ a b Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Robinson, P. E. (2003). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I". The Astronomical Journal. 126 (4): 2048. arXiv:astro-ph/0308182. Bibcode:2003AJ....126.2048G. doi:10.1086/378365. S2CID 119417105.
  4. ^ a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
  5. ^ a b Maldonado, J.; Martínez-Arnáiz, R. M.; Eiroa, C.; Montes, D.; Montesinos, B. (2010). "A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups". Astronomy and Astrophysics. 521: A12. arXiv:1007.1132. Bibcode:2010A&A...521A..12M. doi:10.1051/0004-6361/201014948. S2CID 119209183.
  6. ^ a b c d e f g David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
  7. ^ a b Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. Vizier catalog entry
  8. ^ a b De Medeiros, J. R.; Mayor, M. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series. 139 (3): 433. arXiv:astro-ph/0608248. Bibcode:1999A&AS..139..433D. doi:10.1051/aas:1999401. Vizier catalog entry
  9. ^ "74 Ori". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-08.
  10. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
  11. ^ Lépine, Sébastien; Shara, Michael M. (March 2005), "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)", The Astronomical Journal, 129 (3): 1483–1522, arXiv:astro-ph/0412070, Bibcode:2005AJ....129.1483L, doi:10.1086/427854, S2CID 2603568.
  12. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry

October 15, 2023
orionis, this, article, about, orionis, confused, with, orionis, single, star, equatorial, constellation, orion, bayer, designation, orionis, while, flamsteed, designation, this, object, visible, naked, faint, yellow, white, hued, point, light, with, apparent,. This article is about k Orionis It is not to be confused with k Orionis 74 Orionis is a single 10 star in the equatorial constellation of Orion It has the Bayer designation k Orionis while 74 Orionis is the Flamsteed designation This object is visible to the naked eye as a faint yellow white hued point of light with an apparent visual magnitude of 5 04 2 It is located at a distance of 64 light years from the Sun based on parallax 1 and is drifting further away with a radial velocity of 9 km s 5 The star has a relatively high proper motion traversing the celestial sphere at the rate of 0 204 arc seconds per annum 11 74 Orionis Observation dataEpoch J2000 Equinox J2000Constellation OrionRight ascension 06h 16m 26 61878s 1 Declination 12 16 19 7909 1 Apparent magnitude V 5 04 2 CharacteristicsEvolutionary stage main sequenceSpectral type F5V 3 U B color index 0 02 4 B V color index 0 42 4 AstrometryRadial velocity Rv 9 17 5 km sProper motion m RA 83 102 1 mas yr Dec 186 263 1 mas yrParallax p 51 1930 0 1907 mas 1 Distance63 7 0 2 ly 19 53 0 07 pc Absolute magnitude MV 3 62 2 DetailsMass1 39 6 M Radius1 3 7 R Luminosity3 02 2 L Surface gravity log g 4 34 6 cgsTemperature6 595 6 KMetallicity Fe H 0 03 2 dexRotational velocity v sin i 18 8 8 km sAge2 316 6 GyrOther designationsk Ori 74 Ori BD 12 1084 FK5 1169 GC 8033 GJ 9207 HD 43386 HIP 29800 HR 2241 SAO 95476 CCDM J06165 1216A WDS J06164 1216A LTT 11823 9 Database referencesSIMBADdataThis object is an ordinary F type main sequence star with a stellar classification of F5V 3 It is an estimated 2 3 6 billion years old and is spinning with a projected rotational velocity of 18 8 km s 8 The star has 1 4 6 times the mass of the Sun and 1 3 7 times the Sun s radius Metallicity is near solar 2 which indicates it has a Sun like abundances of elements The star is radiating three 2 times the luminosity of the Sun from its photosphere at an effective temperature of 6 595 K 6 74 Orionis has two visual companions component B with magnitude 12 5 and separation 32 1 and C with magnitude 9 0 and separation 195 5 12 References Edit a b c d e f Brown A G A et al Gaia collaboration August 2018 Gaia Data Release 2 Summary of the contents and survey properties Astronomy amp Astrophysics 616 A1 arXiv 1804 09365 Bibcode 2018A amp A 616A 1G doi 10 1051 0004 6361 201833051 Gaia DR2 record for this source at VizieR a b c d e f g 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 Vizier catalog entry a b Gray R O Corbally C J Garrison R F McFadden M T Robinson P E 2003 Contributions to the Nearby Stars NStars Project Spectroscopy of Stars Earlier than M0 within 40 Parsecs The Northern Sample I The Astronomical Journal 126 4 2048 arXiv astro ph 0308182 Bibcode 2003AJ 126 2048G doi 10 1086 378365 S2CID 119417105 a b Mallama A 2014 Sloan Magnitudes for the Brightest Stars The Journal of the American Association of Variable Star Observers 42 2 443 Bibcode 2014JAVSO 42 443M Vizier catalog entry a b Maldonado J Martinez Arnaiz R M Eiroa C Montes D Montesinos B 2010 A spectroscopy study of nearby late type stars possible members of stellar kinematic groups Astronomy and Astrophysics 521 A12 arXiv 1007 1132 Bibcode 2010A amp A 521A 12M doi 10 1051 0004 6361 201014948 S2CID 119209183 a b c d e f g David Trevor J Hillenbrand Lynne A 2015 The Ages of Early Type Stars Stromgren Photometric Methods Calibrated Validated Tested and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets The Astrophysical Journal 804 2 146 arXiv 1501 03154 Bibcode 2015ApJ 804 146D doi 10 1088 0004 637X 804 2 146 S2CID 33401607 Vizier catalog entry a b Allende Prieto C Lambert D L 1999 Fundamental parameters of nearby stars from the comparison with evolutionary calculations Masses radii and effective temperatures Astronomy and Astrophysics 352 555 562 arXiv astro ph 9911002 Bibcode 1999A amp A 352 555A Vizier catalog entry a b De Medeiros J R Mayor M 1999 A catalog of rotational and radial velocities for evolved stars Astronomy and Astrophysics Supplement Series 139 3 433 arXiv astro ph 0608248 Bibcode 1999A amp AS 139 433D doi 10 1051 aas 1999401 Vizier catalog entry 74 Ori SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2019 08 08 Eggleton P P Tokovinin A A September 2008 A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869 879 arXiv 0806 2878 Bibcode 2008MNRAS 389 869E doi 10 1111 j 1365 2966 2008 13596 x S2CID 14878976 Lepine Sebastien Shara Michael M March 2005 A Catalog of Northern Stars with Annual Proper Motions Larger than 0 15 LSPM NORTH Catalog The Astronomical Journal 129 3 1483 1522 arXiv astro ph 0412070 Bibcode 2005AJ 129 1483L doi 10 1086 427854 S2CID 2603568 Mason Brian D Wycoff Gary L Hartkopf William I Douglass Geoffrey G Worley Charles E 2001 The 2001 US Naval Observatory Double Star CD ROM I The Washington Double Star Catalog The Astronomical Journal 122 6 3466 Bibcode 2001AJ 122 3466M doi 10 1086 323920 Vizier catalog entry Retrieved from https en wikipedia org w index php title 74 Orionis amp oldid 1141747537, wikipedia, wiki, book, books, library,

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