12 Persei
12 Persei (12 Per) is a double-lined spectroscopic binary star system in the northern constellation Perseus. Its combined apparent magnitude is 4.94, which means it can be viewed with the naked eye. Based upon parallax measurements, this system is about 79 light years away from the Sun. The pair orbit each other with a period of 331 days and an eccentricity of 0.663. The semimajor axis of their orbit is 1.27 AU, which means the inner stability radius for a hypothetical planet orbiting the pair would be at 4.35 AU. This lies outside the habitability zone for this system.
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12 Persei
12 Persei (12 Per) is a double-lined spectroscopic binary star system in the northern constellation Perseus. Its combined apparent magnitude is 4.94, which means it can be viewed with the naked eye. Based upon parallax measurements, this system is about 79 light years away from the Sun. The pair orbit each other with a period of 331 days and an eccentricity of 0.663. The semimajor axis of their orbit is 1.27 AU, which means the inner stability radius for a hypothetical planet orbiting the pair would be at 4.35 AU. This lies outside the habitability zone for this system.
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12 Persei (12 Per) is a double ...... tability zone for this system.
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12 Persei (12 Persei / HD 1673 ...... imada de 400 millones de años.
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英仙座12，又名BD+39 610，HD 16739、SAO ...... 2h 35m 56s，赤緯+39° -17.91′ 16″。
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38,258,673
Wikipage revision ID
731,679,729
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appmag v
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constell
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2.8596672000000007E7
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prop mo ra
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12 Persei (12 Per) is a double ...... tability zone for this system.
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12 Persei (12 Persei / HD 1673 ...... en la constelación de Perseo.
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英仙座12，又名BD+39 610，HD 16739、SAO ...... 2h 35m 56s，赤緯+39° -17.91′ 16″。
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12 Persei
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12 Persei
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大陵八
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12 Persei
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