 |
|
| 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 |
|
|
companion, unseen
An object, such as a planet, in orbit around a visible star, the presence of which can only be inferred by an indirect technique.
Related entry
• extrasolar planets, detection
Related categories
• EXTRASOLAR PLANETS AND SUBSTELLAR OBJECTS
• PLANETS AND MOONS
• TYPES OF STAR
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)