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29 Camelopardalis - Wikipedia

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29 Camelopardalis
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Camelopardalis
Right ascension	05^h 50^m 33.8729^s^[1]
Declination	+56° 55′ 08.1822″^[1]
Apparent magnitude (V)	6.590±0.009^[2]
Characteristics
29 Cam A
Spectral type	A4 IV-V
U−B color index	+0.13^[2]
B−V color index	+0.09^[2]
29 Cam B
Spectral type	A3 V
Astrometry
29 Cam A
Radial velocity (R_v)	3.9±2^[3] km/s
Proper motion (μ)	RA: –19.460^[1] mas/yr Dec.: –4.249^[1] mas/yr
Parallax (π)	6.7370 ± 0.0607 mas^[1]
Distance	484 ± 4 ly (148 ± 1 pc)
Absolute magnitude (M_V)	+0.71^[4]
29 Cam B
Proper motion (μ)	RA: +2.585^[5] mas/yr Dec.: –0.570^[5] mas/yr
Parallax (π)	1.6375 ± 0.0483 mas^[5]
Distance	1,990 ± 60 ly (610 ± 20 pc)
Details
29 Cam A
Mass	2.47 ± 0.08^[6] `M`_☉
Radius	3.49+0.14 −0.12^[7] `R`_☉
Luminosity	58.9+8.9 −7.6^[6] `L`_☉
Surface gravity (log g)	3.77^[8] cgs
Temperature	8,337 ± 96^[6] K
Rotational velocity (v sin i)	123^[9] km/s
Age	380 ± 14^[6] Myr
29 Cam B
Mass	2.12^[10] `M`_☉
Radius	2.06^[11] `R`_☉
Luminosity	15.043^[11] `L`_☉
Temperature	7911^[11] K
Rotational velocity (v sin i)	110±8^[12] km/s
Other designations
BD+56° 1065, HD 38618, HIP 27592, HR 1992, SAO 25403, WDS J05506+5655A
Database references
SIMBAD	data

29 Camelopardalis (29 Cam) is a double star in the circumpolar constellation Camelopardalis. With an apparent magnitude of 6.59,^[2] it's right below the max visibility to the naked eye, and can only be viewed under phenomenal conditions. The star is located 484 light years^[1] away based on parallax, but is drifting further away with a radial velocity of 3.9 km/s.^[3]

29 Cam A

29 Cam A has a classification of A4IV-V, which suggests that this star is beginning to evolve off the main sequence. Zorec et al. models it as a star that has completed 90.6% of the main sequence, which correlates to an age of 380 million years.^[6] At present, 29 Cam has 2.47 the mass of the Sun,^[6] and 3.49 times its radius. ^[7] It radiates at 58.9 times the luminosity of the Sun from an effective temperature of 8,337 K,^[6] which gives it a white hue of an A-type star. 29 Cam spins rapidly at a projected rotational velocity of 123 km/s despite its evolved state.

29 Cam B

29 Cam has a companion designated BD+56 1065B, which is a 10 magnitude star. According to the proper motion, this star is unrelated to the primary, and is 4 times farther than the primary.^[13] The companion is relatively cooler and less luminous than the primary.

References

^ ^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.
^ ^a ^b ^c ^d Oja, T. (August 1991). "UBV photometry of stars whose positions are accurately known. VI". Astronomy and Astrophysics Supplement Series. 89: 415–419. Bibcode:1991A&AS...89..415O. ISSN 0365-0138.
^ ^a ^b Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Carnegie Institute Washington D.C. Publication. Bibcode:1953GCRV..C......0W.
^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
^ ^a ^b ^c 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 ^d ^e ^f ^g Zorec, J.; Royer, F. (1 January 2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. ISSN 0004-6361. S2CID 55586789.
^ ^a ^b Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara (October 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
^ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.
^ Royer, F.; Grenier, S.; Baylac, M.-O.; Gómez, A. E.; Zorec, J. (October 2002). "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i". Astronomy and Astrophysics. 393: 897–911. arXiv:astro-ph/0205255. Bibcode:2002A&A...393..897R. doi:10.1051/0004-6361:20020943. ISSN 0004-6361.
^ Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
^ ^a ^b ^c Gaia Collaboration; Brown, A. G. A.; Vallenari, A.; Prusti, T.; de Bruijne, J. H. J.; Babusiaux, C.; Bailer-Jones, C. A. L.; Biermann, M.; Evans, D. W.; Eyer, L.; Jansen, F. (2018-08-01). "Gaia Data Release 2. Summary of the contents and survey properties". Astronomy and Astrophysics. 616: A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. ISSN 0004-6361.
^ Glebocki, R.; Gnacinski, P. (2005-03-01). "Systematic errors in the determination of stellar rotational velocities". 13th Cambridge Workshop on Cool Stars. 560: 571. Bibcode:2005ESASP.560..571G.
^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001-12-01). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. ISSN 0004-6256. S2CID 119533755.

Constellation of Camelopardalis

Stars

Bayer	α β γ
Flamsteed	1 2 3 4 5 7 8 11 12 14 15 16 17 18 19 20 21 22 23 24 26 28 29 30 31 33 34 35 36 37 38 39 40 41 42 43 49 51 53
Variable	U Z RU ST TX VZ BD BE BK BN CE CO CQ CS DD MY
HR	967 1046 1073 1112 1124 1129 1138 1158 1192 1204 1205 1241 1242 1305 1313 1314 1327 1335 1342 1401 1440 1491 1527 1561 1624 1636 (Mago) 1675 1683 1686 1720 1844 1916 2209 2363 2396 2401 2527 2581 2830 3075 3082 3216 4062 4084 4609 (Tonatiuh) 4892 4893 5009 5091 5203
HD	35759
Other	2MASS J05325346+8246465 Gliese 445 NGC 2363-V1 PSR B0329+54 Stein 2051 Struve 1694 XO-3 XO-6

Exoplanets	HD 32518 b HD 33564 b HD 104985 b XO-3b XO-6b

Star clusters	NGC 1502

Nebulae	IC 3568 (Lemon Slice Nebula) M4-18 NGC 1501 NGC 2404

Galaxies

NGC	1530 1560 1569 1573 1573A 1961 2146 2336 2363 2366 2403 2441 2460 2523 2655 2715 2748 5640
Other	DDO 44 IC 342 IRAS 07598+6508 MACS0647-JD UGC 3478 UGC 3730 UGCA 86

Galaxy clusters	MACS J0647.7+7015 MS 0735.6+7421

Astronomical events	SN 1996ah GRB 970508 SN 2004dj SN 2010lt