HD 208177

HD 208177
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 21h 54m 35.91630s[1]
Declination −03° 18′ 04.5532″[1]
Apparent magnitude (V) 6.20[2]
Characteristics
Spectral type F5IV[3]
U−B color index 0.07[2]
B−V color index 0.48[2]
Astrometry
Radial velocity (Rv)-20[4] km/s
Proper motion (μ) RA: +29.06[1] mas/yr
Dec.: −29.87[1] mas/yr
Parallax (π)16.89 ± 1.32 mas[1]
Distance190 ± 20 ly
(59 ± 5 pc)
Details
Mass1.63[5] M☉
Surface gravity (log g)3.94[6] cgs
Temperature6,577[6] K
Metallicity [Fe/H]0.30[6] dex
Age1.70[6] Gyr
Mass0.32[5] M☉
Other designations
BD-03° 5329, HD 208177, HIP 108144, HR 8363, SAO 145735.
Database references
SIMBADdata
Database references
SIMBADdata
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 208177 is a double star system in the equatorial constellation of Aquarius.[5] They are faintly visible to the naked eye with an apparent magnitude of 6.20.[2] The pair have an angular separation of 19.113″.[7] The primary component is an evolved subgiant star with a stellar classification of F5IV.[3] It has an estimated 163%[5] of the Sun's mass and is about 1.7 billion years old[6]

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference aass34_1 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference aj80_637 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Gontcharov was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference aj147_4_87 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference aa530_A138 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference al34_6_405 was invoked but never defined (see the help page).