HD 3

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HD 3
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Andromeda
Right ascension 00h 05m 09.90s
Declination +45° 13′ 45.0″
Apparent magnitude (V) 6.71[1]
Distance 453 ly
(139[1] pc)
Spectral type A1Vn[1]

HD 3 is a triple star located 139 parsecs (450 ly) away in the constellation Andromeda. The primary component, with a spectral type of A1Vn and apparent magnitude of 6.71,[1] is just on the limit of naked-eye visibility under the best conditions on Earth. The secondary and tertiary components have apparent magnitudes of 10.53[2] and 13.5 respectively.[3]

References[edit]

  1. ^ a b c d "HR 1". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 February 2014. 
  2. ^ "BD+44 4550C". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 February 2014. 
  3. ^ "BD+44 4550B". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 12 February 2014. 

External links[edit]

Coordinates: Sky map 00h 05m 09.90s, +45° 13′ 45.0″