Encyclopedia > HDE

  Article Content

HDE

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
344

...   Contents 344 Centuries: 3rd century - 4th century - 5th century Decades: 290s 300s 310s 320s 330s - 340s - 350s 360s 370s 380s 390s Years: 339 340 341 ...