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| Pieces | 196 |
| Size | 882x882 |
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| Added | Daimonverda |
| Published | 2/5/18 |
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A binary star system is a system with two stars bound by common gravity. They are "separated" (no mass exchange occurs) and "close" (mass exchange occurs). This is a frequent occurrence - about half of all stars in the galaxy are binaries.







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