 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
periastron
The point in the orbital motion of a binary star system when the two stars are closest together.
Related category
• CELESTIAL MECHANICSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History