29 Camelopardalis

Last updated
29 Camelopardalis
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Camelopardalis
Right ascension 05h 50m 33.8729s [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 (Rv)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  (MV)+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☉
Luminosity15.043 [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]

Contents

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.

Related Research Articles

18 Andromedae, abbreviated 18 And, is a single star in the northern constellation of Andromeda. 18 Andromedae is the Flamsteed designation. It is visible to the naked eye with an apparent visual magnitude of 5.350. The annual parallax shift of 7.9 mas can be used to estimate a distance of 413 light years. It is moving further from the Earth with a heliocentric radial velocity of +10 km/s.

107 Aquarii is a double star in the equatorial constellation of Aquarius. 107 Aquarii is the Flamsteed designation, although it also bears the Bayer designation i2 Aquarii. The pair have an angular separation of 6.787 arcseconds. They have a combined apparent visual magnitude of +5.305, with individual magnitudes of 5.72 and 6.72. The annual parallax shift measured for the two components is 16.1 mas and 20.0 mas respectively, although with significant statistical margins of error and flags for potential unreliability of both values. This indicates the system may be at a distance of 160–200 light-years from Earth.

41 Aurigae is a binary star system located around 310–316 light years away from the Sun in the northern constellation of Auriga. It is visible to the naked eye as a dim, white-hued star with a combined apparent visual magnitude of 5.83. This system is moving further from the Earth with a heliocentric radial velocity of 31 km/s. It is a probable member of the Hyades Supercluster.

Omega<sup>1</sup> Aquarii Star in the constellation Aquarius

Omega1 Aquarii, Latinized from ω1 Aquarii, is the Bayer designation for a single star in the equatorial constellation of Aquarius. With an apparent visual magnitude of 4.96, this star is faintly visible to the naked eye from the suburbs. The distance to this star can be estimated from the parallax as approximately 138 light-years.

<span class="mw-page-title-main">HD 33463</span> Suspected variable star in the constellation Auriga

HD 33463 is a suspected variable star in the northern constellation of Auriga, about 1,050 light years away. It is a red giant star with a stellar classification of M2III, and has expanded away from the main sequence after exhausting its core hydrogen. It has reached 133 times the size of the Sun and, at an effective temperature of 3,753 K it shines at a bolometric luminosity of 2,114 L☉.

16 Camelopardalis is a single star in the northern circumpolar constellation Camelopardalis, located 348 light years away from the Sun as determined from parallax measurements. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.28. This object is moving further from the Earth with a heliocentric radial velocity of around 12 km/s.

5 Camelopardalis is a binary star system in the northern circumpolar constellation of Camelopardalis, located about 770 light years away from the Sun as determined using parallax. With an apparent magnitude of 5.5, it can be seen with the naked eye as a faint, blue-white hued star. The system is moving further from the Earth with a heliocentric radial velocity of +2.4 km/s.

Rho Herculis is a double star in the constellation of Hercules. The apparent magnitudes of the components are 4.510 and 5.398, respectively. Parallax measurements published in Gaia Data Release 2 put the system at some 360-390 light-years away.

<span class="mw-page-title-main">ET Virginis</span> Evolved red giant star in the constellation Virgo

ET Virginis is a single, red-hued star in the equatorial constellation of Virgo. It can be viewed with the naked eye, having an apparent visual magnitude of 4.91. Based upon an annual parallax shift of 5.9 mas, it is located 560 light years away. It is moving further from the Earth with a heliocentric radial velocity of +18.6 km/s, having come within 177 ly of the Sun around 6.3 million years ago.

53 Ophiuchi is a multiple star system in the equatorial constellation of Ophiuchus. It is visible to the naked eye as a faint star with a combined apparent visual magnitude of 5.80. Located around 370 light years distant from the Sun based on parallax, it is moving closer to the Earth with a heliocentric radial velocity of −14 km/s. As of 2011, the visible components had an angular separation of 41.28″ along a position angle of 190°. The primary may itself be a close binary system with a separation of 0.3692″ and a magnitude difference of 3.97 at an infrared wavelength of 562 nm.

<span class="mw-page-title-main">HD 93905</span> Star in the constellation Antlia

HD 93905 is a solitary star located in the southern constellation Antlia. The star has an absolute magnitude of 0 and an apparent magnitude of 5.61, making it faintly visible to the naked eye under ideal conditions. The star is located 371 light years away based on its parallax shift and is drifting closer with a helocentric radial velocity of −9.6 km/s.

<span class="mw-page-title-main">HD 76143</span> Star in the constellation Volans

HD 76143 is a high proper motion star located in the southern circumpolar constellation Volans. With an apparent magnitude of 5.33, its faintly visible to the naked eye. The star is located 173 light years away from the Solar System, but is drifting with a radial velocity of 40.5 km/s.

HD 35759 is a high proper motion star located in the circumpolar constellation Camelopardalis. With an apparent magnitude of 7.74, it's impossible to see with the unaided eye, but can be seen with binoculars.

NGTS-3 is a star located in the southern constellation Columba. With an apparent magnitude of 14.67, it requires a powerful telescope to observe. However, NGTS-3 is actually an unresolved spectroscopic binary. The system is located 2,480 light years away based on parallax, but is drifting away with a radial velocity of 8.57 km/s.

HD 63584 is a solitary star in the southern circumpolar constellation Volans. With an apparent magnitude of 6.15, it is barely visible to the naked eye under ideal conditions. The star is located 420 light years away based on parallax, but is drifting away with a radial velocity of 10.4 km/s.

<span class="mw-page-title-main">Rho Octantis</span> High proper motion star in the constellation Octans

Rho Octantis, Latinized from ρ Octantis, is a star located in the southern circumpolar constellation Octans. With an apparent magnitude of 5.57, its faintly visible to the naked eye under ideal conditions. The star is located 215 light years away from the Solar System, but is drifting closer with a radial velocity of −11 km/s.

HD 191829 is a solitary star located in the southern constellation Telescopium. It has an apparent magnitude of 5.632, making it faintly visible to the naked eye if viewed under ideal conditions. The star is situated at a distance of 710 light years but is receding with a heliocentric radial velocity of 14 km/s.

37 Camelopardalis is a solitary star in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.36, allowing it to be seen with the naked eye under ideal conditions. Located 444 light years away, the star is receding with a heliocentric radial velocity of 30.92 km/s.

HD 193472 is a solitary star in the equatorial constellation Delphinus. It has an apparent magnitude of 5.94, making it visible with the naked eye if viewed under ideal conditions. Parallax measurements put it at a distance of 282 light years and has a radial velocity of −8 km/s, indicating that the object drifting towards the Solar System.

<span class="mw-page-title-main">HD 199223</span> Double star in the constellation Delphinus.

HD 199223 is a double star in the equatorial constellation Delphinus. However, the system was originally in Equuleus prior to the creation of official IAU constellation borders. The components have a separation of 2″ at a position angle of 282° as of 2016. They have apparent magnitudes of 6.34 and 7.49 and distances of 354 and 359 light years respectively. The system is drifting closer with a radial velocity of −33 km/s.

References

  1. 1 2 3 4 5 6 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. 1 2 3 4 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.
  3. 1 2 Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Carnegie Institute Washington D.C. Publication. Bibcode:1953GCRV..C......0W.
  4. ↑ 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.
  5. 1 2 3 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.
  6. 1 2 3 4 5 6 7 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.
  7. 1 2 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.
  8. ↑ 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.
  9. ↑ 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.
  10. ↑ 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.
  11. 1 2 3 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.
  12. ↑ 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.
  13. ↑ 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.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.