Gamma Camelopardalis

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Template:Short description

Gamma Camelopardalis
Template:Location mark
Location of γ Cam (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 4.66[3] + 9.07[4]
Characteristics
Spectral type A2 IVn[5]
U−B Template:Engvar +0.07[3]
B−V Template:Engvar +0.03[3]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[2] km/s
Proper motion (μ) RA: +18.435 mas/yr[2]
Dec.: −41.956 mas/yr[2]
Parallax (π)8.4446±0.0826 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−0.62[1]
Details
γ Cam A
MassScript error: No such module "val".[6] Template:Solar mass
RadiusScript error: No such module "val".[6] Template:Solar radius
Luminosity185[7] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[2] cgs
Temperature8,892[7] K
Rotational velocity (v sin i)205[8] km/s
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Gamma Camelopardalis is a suspected wide binary star[10] system in the northern circumpolar constellation of Camelopardalis. Its name is a Bayer designation that is Latinized from γ Camelopardalis, and abbreviated Gamma Cam or γ Cam. With a visual magnitude of 4.66,[3] it is faintly visible to the naked eye. Based upon an annual parallax shift of Script error: No such module "val". as seen from Earth,[2] this system is located about Script error: No such module "convert". from the Sun. It is drifting closer with a line of sight velocity of −2.8 km/s.[2]

The brighter primary, designated component A, is a white-hued A-type subgiant star with a stellar classification of A2 IVn.[5] It is spinning rapidly with a projected rotational velocity of 205 km/s. This is giving the star an oblate shape with an equatorial bulge that is 17% larger than the polar radius.[8] It has about 3.4 times the mass of the Sun and 5.6 times the Sun's radius.[6] The star is radiating 185[7] times the Sun's luminosity from its photosphere at an effective temperature of 8,892 K.[7]

The magnitude 9.07 secondary, BD+70 260, designated component C, lies at an angular separation of 106.00 arc seconds along a position angle of 85°, as of 2011. Component B is a magnitude 12.40 visual companion at a separation of 56.30 arc seconds along position angle 247°.[4]

References

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  1. a b Template:Cite XHIP
  2. a b c d e f g h Template:Cite Gaia DR3
  3. a b c d Script error: No such module "citation/CS1".
  4. a b Script error: No such module "citation/CS1".
  5. a b Script error: No such module "citation/CS1".
  6. a b c Script error: No such module "citation/CS1".
  7. a b c d Script error: No such module "citation/CS1".
  8. a b Script error: No such module "citation/CS1".
  9. Template:Cite simbad
  10. Script error: No such module "citation/CS1".

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External links

Template:Stars of Camelopardalis