53 Aurigae

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53 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 38m 23.01009s[1]
Declination +28° 59′ 03.6220″[1]
Apparent magnitude (V) 5.744[2]
Characteristics
Spectral type B9 Mn + F0m[3]
U−B color index −0.07[4]
B−V color index −0.02[4]
Distance
383 ± 6 ly
(117 ± 2 pc)
Absolute magnitude (MV)+0.48[6]
Argument of periastron
(ω)
(secondary)		343.3°
Details
53 Aur A
Rotational velocity (v sin i)
0[3] km/s
TYC 1892-236-1, GSC
 01892-00236
Database references
SIMBADdata

53 Aurigae is a

apparent visual magnitude of 5.74.[2] Parallax estimates put it at a distance of 383 light-years (117 parsecs) away.[1] The system is receding from the Earth with a heliocentric radial velocity of 13 km/s.[5]

The two components of 53 Aurigae orbit each other every 39 years with an eccentricity of 0.557.[7] The primary component, 53 Aurigae A, is chemically peculiar since it contains higher-than-normal amounts of manganese,[3] but also europium, chromium, and mercury.[8] It is a B-type main-sequence mercury-manganese star,[8] while the secondary component, 53 Aurigae B, is an early F-type main-sequence star.[8] The total mass of the system is estimated to be 4.8 M☉.[8]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:2000A&A...355L..27H
    .
  3. ^
    Bibcode:2008CoSka..38..467Z
    .
  4. ^
    Bibcode:1986EgUBV........0M
    .
  5. ^
    S2CID 119257644
    .
  6. S2CID 59405545
    .
  7. ^ a b "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 28 May 2017.
  8. ^
    S2CID 14811051
    .
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