Magnitude 5.23 | Constellation Lyra | |
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17 Lyrae is a binary star system in the constellation Lyra, approximately 132 light years away from Earth. The main star, 17 Lyrae A, is a 5th magnitude white star of the spectral type F0V, meaning it has a surface temperature of about 7,500 kelvins. It is a dwarf star, like the Sun, yet brighter and hotter. Its companion, 17 Lyrae B, is a 9th magnitude star of an unknown spectral type. There was once thought to be a third star in the system, 17 Lyrae C, until it was evident that the star's parallax and proper motions were too different for it to be part of the system.
References
17 Lyrae Wikipedia(Text) CC BY-SA