HD 1032

HD 1032
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Octans
Right ascension 00h 13m 19.6219s[1]
Declination −84° 59′ 38.3178″[1]
Apparent magnitude (V) 5.77[2]
Characteristics
Evolutionary stage AGB[3]
Spectral type M0/1 III[4]
U−B color index +2.10[2]
B−V color index +1.72[2]
Variable type suspected[5]
Astrometry
Radial velocity (Rv)4±0.4[6] km/s
Proper motion (μ) RA: +11.046 mas/yr[1]
Dec.: +17.696 mas/yr[1]
Parallax (π)3.8517 ± 0.0501 mas[1]
Distance850 ± 10 ly
(260 ± 3 pc)
Absolute magnitude (MV)−1.57[7]
Details
Mass1.11[8] M☉
Radius95.54[9] R☉
Luminosity1,461[10] L☉
Surface gravity (log g)0.69[8] cgs
Temperature3,838±122[11] K
Metallicity [Fe/H]−0.08[8] dex
Other designations
2 G. Octantis[12], CPD−85°2, FK5 3972, GC 257, HD 1032, HIP 1074, HR 47, SAO 258217[13]
Database references
SIMBADdata

HD 1032 (HR 47) is a solitary[14] star in the southern circumpolar constellation Octans. It is faintly visible to the naked eye with an apparent magnitude of 5.77[2] and is estimated to be 850 light years away from the Solar System based on parallax measure.[1] However, it is receding with a heliocentric radial velocity of 4 km/s.

HD 1032 is an asymptotic giant branch[3] star with a stellar classification of M0/1 III[4] — intermediate between a M0 and M1 giant star. It has 111% the mass of the Sun[8] and an enlarged radius of 95.54 R☉[9] as a result of its evolved state. It radiates at 1,461 times the luminosity of the Sun[10] from its photosphere at an effective temperature of 3,838 K,[11] giving a red hue. HD 1032 is slightly metal deficient with an iron abundance 83% that of the Sun.[8]

This is a suspected variable star that fluctuates between magnitudes 5.82 and 5.88 in the Hipparcos passband.[5]

  1. ^ a b c d e Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Ducati2002 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Eggen1992 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Houk1975 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Samus2017 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b c d e Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Kervella2021 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference McDonald2017 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).