Encyclopedia > HDE

  Article Content


The Henry Draper catalogue Extension is an extension to the famous Henry Draper Catalogue, a collection of positional and spectroscopic data about hundreds of thousands of stars.

It can be recognized by the prefix HDE, followed by a number indicating the star's position in the catalogue.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Ad hoc protocol list

... Symposium on Telecommunications http://www.eurecom.fr/~nikaeinn/harp.ps HSR (Host Specific Routing protocol) LANMAR[?] (Landmark Routing Protocol for Large Scale ...