How does the NGC catalog number tie to the r.a. number, or is there a direct connection?
Quote:
Originally Posted by ngc3314
PG - Palomar-Green, a survey of the sky for blue objects done by Richard Green for his dissertation. This captured a fair number of brightish QSOs that had been hitherto unknown (thus giving clues about how complete the surveys might be), as well as nearby white dwarfs and cataclysmic variable stars.
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So there are Green stars, but they are blue.
Stellarchromology is pleased to learn this.
