Dictionary of Nomenclature of Celestial Objects


Details on Acronym:   HD
  
HD (H. Draper)
Write:<<HD NNNNNNa>>
<<HD NNNNNNAa>>
<<HD NNN NNNa>> (not recognised by Simbad, but found in literature)
<<HD NNN NNNAa>>
Object:Planet  (SIMBAD class: Planet = Extra-solar Planet)
Note:Suffix a added to the formats for the HD stars, to follow in SIMBAD the usage found in the literature.
Originof the Acronym: L = Found in the literature