HR 3082

HR 3082
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 08h 04m 47.0589s[1]
Declination +79° 28′ 46.610″[1]
Apparent magnitude (V) 5.39[2]
Characteristics
Spectral type A0p Si[3] or B9.5 IVs[4]
B−V color index −0.040±0.002[2]
Astrometry
Radial velocity (Rv)+2.7±0.8[5] km/s
Proper motion (μ) RA: −28.922(74) mas/yr[1]
Dec.: −50.085(101) mas/yr[1]
Parallax (π)9.5700 ± 0.0876 mas[1]
Distance341 ± 3 ly
(104.5 ± 1.0 pc)
Absolute magnitude (MV)0.32±0.12[6]
Details
Mass2.65±0.06[6] M☉
Radius2.89[7] R☉
Luminosity74+9
−8[6] L☉
Surface gravity (log g)3.94±0.14[8] cgs
Temperature10,795±367[8] K
Rotational velocity (v sin i)30[8] km/s
Age36[8] Myr
Other designations
BD+79° 265, FK5 2617, HD 64486, HIP 39538, HR 2527, SAO 6392, WDS J08048+7929AB[9]
Database references
SIMBADdata

HR 3082 is a double star in the northern circumpolar constellation of Camelopardalis. It is faintly visible to the naked eye with an apparent visual magnitude of 5.39.[2] The system is moving closer to the Sun with a heliocentric radial velocity of +2.7 km/s.[5] It is currently at a distance of around 341 light years, based upon an annual parallax shift of 9.57 mas.[1]

The brighter component is a magnetic,[7] mild Ap star that displays an overabundance of silicon in its spectrum.[10] Cowley et al. (1969) listed a stellar classification of A0p Si,[3] while Abt and Morrell (1995) have it pegged as a subgiant star with a class of B9.5 IVs.[4] It has an estimated 2.65[6] times the mass of the Sun and 2.89[7] times the Sun's radius. The star is radiating 74[6] times the Sun's luminosity from its photosphere at an effective temperature of 10,795 K.[8]

The fainter component is a magnitude 9.6 star at an angular separation of 0.4″ along a position angle (PA) of 84°, as of 2009.[11] This is most likely a visual companion located along the same line of sight.[12] There is a magnitude 13.6 visual companion at a separation of 6.4″ along a PA of 169°, as of 2016.[11]

  1. ^ a b c d e Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Abt1995 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference Kochukhov2006 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Shulyak2014 was invoked but never defined (see the help page).
  8. ^ a b c d e Cite error: The named reference David2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Adelman1982 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference WDSC2014 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).