| 31. | This is a binary star system with a Sun's mass.
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| 32. | Gamma Delphini is a celebrated binary star among amateur astronomers.
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| 33. | Iota Crucis is a binary star 125 light-years from Earth.
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| 34. | Carina is home to several double stars and binary stars.
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| 35. | Zeta Tauri is an eclipsing binary star that completes an orbit every 133 days.
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| 36. | ? Gem is a binary star 143 light-years from Earth.
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| 37. | Ellison was a highly regarded planetary and binary star observer.
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| 38. | "Physical double stars should go in the subcategory Binary stars.
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| 39. | It is an eclipsing binary star almost 40 light-years away.
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| 40. | There is evidence that Atria may be a binary star.
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