29 Camelopardalis

{{Short description|Double star in the constellation Camelopardalis}}

{{Starbox observe

| constell = Camelopardalis

| epoch = J2000.0

| ra = {{RA|05|50|33.8729}}

| dec ={{DEC|+56|55|08.1822}}

| appmag_v = {{val|6.590|0.009}}

}}

{{Starbox character

| class = A4 IV-V

| component1= 29 Cam A

| b-v = +0.09

| u-b = +0.13

| component2 = 29 Cam B

| class2 = A3 V

}}

{{starbox astrometry

| radial_v = {{val|3.9|2}}

| parallax = 6.7370

| p_error = 0.0607

| parallax_footnote =

| prop_mo_ra = –19.460

| prop_mo_dec= –4.249

| component1= 29 Cam A

| component2 = 29 Cam B

| parallax2 = 1.6375

| p_error2 = 0.0483

| prop_mo_ra2 = +2.585

| prop_mo_dec2 = –0.570

| parallax_footnote2 =

| absmag_v = +0.71

}}

{{starbox detail

| temperature = 8,337 ± 96

| radius = {{val|3.49|0.14|0.12}}

| mass = 2.47 ± 0.08

| rotational_velocity = 123

| luminosity = {{val|58.9|8.9|7.6}}

| gravity = 3.77

| component1 = 29 Cam A

| component2 = 29 Cam B

| age_myr = 380 ± 14

| rotational_velocity2 = {{val|110|8}}{{Cite journal|last1=Glebocki|first1=R.|last2=Gnacinski|first2=P.|date=2005-03-01|title=Systematic errors in the determination of stellar rotational velocities|journal=13th Cambridge Workshop on Cool Stars|volume=560|pages=571|bibcode=2005ESASP.560..571G}}|radius2=2.06{{Cite journal|last1=Gaia Collaboration|last2=Brown|first2=A. G. A.|last3=Vallenari|first3=A.|last4=Prusti|first4=T.|last5=de Bruijne|first5=J. H. J.|last6=Babusiaux|first6=C.|last7=Bailer-Jones|first7=C. A. L.|last8=Biermann|first8=M.|last9=Evans|first9=D. W.|last10=Eyer|first10=L.|last11=Jansen|first11=F.|date=2018-08-01|title=Gaia Data Release 2. Summary of the contents and survey properties|journal=Astronomy and Astrophysics|volume=616|pages=A1|doi=10.1051/0004-6361/201833051|arxiv=1804.09365|bibcode=2018A&A...616A...1G|issn=0004-6361|doi-access=free}}|luminosity2=15.043|temperature2=7911|mass2=2.12{{Cite journal|last1=Stassun|first1=Keivan G.|last2=Oelkers|first2=Ryan J.|last3=Paegert|first3=Martin|last4=Torres|first4=Guillermo|last5=Pepper|first5=Joshua|last6=De Lee|first6=Nathan|last7=Collins|first7=Kevin|last8=Latham|first8=David W.|last9=Muirhead|first9=Philip S.|last10=Chittidi|first10=Jay|last11=Rojas-Ayala|first11=Bárbara|date=2019-10-01|title=The Revised TESS Input Catalog and Candidate Target List|journal=The Astronomical Journal|volume=158|issue=4|pages=138|doi=10.3847/1538-3881/ab3467| arxiv=1905.10694 |bibcode=2019AJ....158..138S|issn=0004-6256|hdl=1721.1/124721|s2cid=166227927|hdl-access=free |doi-access=free }}}}

{{starbox catalog

| names = {{odlist|BD=+56° 1065|HD=38618|HIP=27592|HR=1992|SAO=25403|WDS=J05506+5655A}}

}}

{{starbox reference

| Simbad = 29+Cam

}}

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

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. 29 Cam now has 2.47 the mass of the Sun, and 3.49 times its radius. It radiates at 58.9 times the luminosity of the Sun from an effective temperature of 8,337 K, 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 four times further than the primary.{{Cite journal|last1=Mason|first1=Brian D.|last2=Wycoff|first2=Gary L.|last3=Hartkopf|first3=William I.|last4=Douglass|first4=Geoffrey G.|last5=Worley|first5=Charles E.|date=2001-12-01|title=The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog|journal=The Astronomical Journal|volume=122|issue=6|pages=3466–3471|doi=10.1086/323920|bibcode=2001AJ....122.3466M|s2cid=119533755 |issn=0004-6256|doi-access=free}} The companion is relatively cooler and less luminous than the primary.

References

{{reflist||refs=

{{Cite journal|last=Oja|first=T.|date=August 1991|title=UBV photometry of stars whose positions are accurately known. VI|journal=Astronomy and Astrophysics Supplement Series|volume=89|pages=415–419|bibcode=1991A&AS...89..415O|issn=0365-0138}}

{{Cite journal|last=Wilson|first=Ralph Elmer|date=1953|title=General catalogue of stellar radial velocities.|journal=Carnegie Institute Washington D.C. Publication|bibcode=1953GCRV..C......0W}}

{{Cite journal|last1=Stassun|first1=Keivan G.|last2=Oelkers|first2=Ryan J.|last3=Paegert|first3=Martin|last4=Torres|first4=Guillermo|last5=Pepper|first5=Joshua|last6=De Lee|first6=Nathan|last7=Collins|first7=Kevin|last8=Latham|first8=David W.|last9=Muirhead|first9=Philip S.|last10=Chittidi|first10=Jay|last11=Rojas-Ayala|first11=Bárbara|date=October 2019|title=The Revised TESS Input Catalog and Candidate Target List|journal=The Astronomical Journal|volume=158|issue=4|pages=138|doi=10.3847/1538-3881/ab3467|arxiv=1905.10694|bibcode=2019AJ....158..138S|issn=0004-6256|hdl=1721.1/124721|s2cid=166227927|hdl-access=free |doi-access=free }}

{{Cite journal|last1=Royer|first1=F.|last2=Grenier|first2=S.|last3=Baylac|first3=M.-O.|last4=Gómez|first4=A. E.|last5=Zorec|first5=J.|date=October 2002|title=Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i|journal=Astronomy and Astrophysics|volume=393|pages=897–911|doi=10.1051/0004-6361:20020943 | arxiv=astro-ph/0205255 |bibcode=2002A&A...393..897R|issn=0004-6361|doi-access=free}}

{{Cite journal|last1=Anderson|first1=E.|last2=Francis|first2=Ch.|date=May 2012|title=XHIP: An extended hipparcos compilation|journal=Astronomy Letters|volume=38|issue=5|pages=331–346|doi=10.1134/S1063773712050015|issn=1063-7737|arxiv=1108.4971|bibcode=2012AstL...38..331A|s2cid=119257644}}

{{Cite journal|last1=Anders|first1=F.|last2=Khalatyan|first2=A.|last3=Chiappini|first3=C.|last4=Queiroz|first4=A. B.|last5=Santiago|first5=B. X.|last6=Jordi|first6=C.|last7=Girardi|first7=L.|last8=Brown|first8=A. G. A.|last9=Matijevic|first9=G.|last10=Monari|first10=G.|last11=Cantat-Gaudin|first11=T.|date=August 2019|title=Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18|journal=Astronomy and Astrophysics|volume=628|pages=A94|doi=10.1051/0004-6361/201935765 | arxiv=1904.11302 |bibcode=2019A&A...628A..94A|issn=0004-6361|doi-access=free}}

{{cite journal |last1=Zorec |first1=J. |last2=Royer |first2=F. |title=Rotational velocities of A-type stars. IV. Evolution of rotational velocities |journal=Astronomy and Astrophysics |date=1 January 2012 |volume=537 |pages=A120 |doi=10.1051/0004-6361/201117691 |arxiv=1201.2052 |issn=0004-6361 |bibcode=2012A&A...537A.120Z|s2cid=55586789 }}

}}

Category:Camelopardalis

Category:A-type subgiants

Camelopardalis, 29

Category:Durchmusterung objects

038618

027592

1992