HD 205765

HD 205765
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 21h 37m 33.77302s[1]
Declination −00° 23′ 25.7789″[1]
Apparent magnitude (V) 6.2491[1]
Characteristics
Spectral type A2V[2]
U−B color index +0.055[3]
B−V color index +0.055[3]
Astrometry
Radial velocity (Rv)+16.9[4] km/s
Proper motion (μ) RA: +177[1] mas/yr
Dec.: −109[1] mas/yr
Parallax (π)8.86 ± 0.39 mas[1]
Distance370 ± 20 ly
(113 ± 5 pc)
Details
Radius1.7[5] R☉
Rotational velocity (v sin i)172.2±2.2[6] km/s
Other designations
BD-01° 4180, HD 205765, HIP 106758, HR 8263, SAO 145533.
Database references
SIMBADdata

HD 205765 is a star in the equatorial constellation of Aquarius. It is an A-type main sequence star with an apparent magnitude of 6.2, which, according to the Bortle scale, makes it faintly visible to the naked eye from dark rural skies. This star is spinning rapidly with a projected rotational velocity of 172 km/s.[6]

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  2. ^ Cite error: The named reference aj74_375 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference gcsrv was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference cadars was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference aaa531_A143 was invoked but never defined (see the help page).