2 Camelopardalis

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2 Camelopardalis
Observation data
J2000
Constellation
Camelopardalis
Right ascension 04h 39m 58.06187s[1]
Declination +53° 28′ 22.4654″[1]
Apparent magnitude (V) 5.36[2]
Characteristics
A
Spectral type A8V[3]
U−B color index +0.05[2]
B−V color index +0.34[2]
Distance
213 ± 5 ly
(65 ± 2 pc)
Argument of periastron
(ω)
(secondary)		42.9 ± 2.6°
Argument of periastron
(ω)
(secondary)		105.1 ± 5.4°
Details[5]
A
Mass1.94 M☉
B
Mass1.45 M☉
C
Mass1.5 M☉
HR 1466, SAO 24744, ADS 3358 ABC, CCDM J04400+5328ABC, WDS
04400+5328
Database references
SIMBAD2 Cam
2 Cam AB
2 Cam C

2 Camelopardalis is a

apparent visual magnitude of 5.36.[2] The system is located at a distance of about 213 light-years (65 parsecs) from the Sun, based on its parallax.[1] It is drifting further away with a radial velocity of +20 km/s.[4]

The primary member of 2 Camelopardalis, designated component A, is an

spectral type of A8V. It has an apparent magnitude of 5.86, and has a secondary with an apparent magnitude of 7.35, designated component B.[7] The two orbit each other on a very eccentric orbit with a period of 26.34 years.[5] Further out, there is an eight-magnitude companion (designated component C), orbiting once every few hundred years.[5] As the third star was previously thought to be relatively massive for its luminosity, it was suspected of being a binary star itself,[8] but the current estimate of component C's magnitude as a single star matches its absolute magnitude.[5]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:1986EgUBV........0M
    .
  3. doi:10.1086/128449
    .
  4. ^
    S2CID 119054949
    .
  5. ^
    S2CID 231419112
    .
  6. S2CID 14878976
    .
  7. ^ "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 30 April 2017. Retrieved 4 April 2017.
  8. doi:10.1086/117792
    .
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