10 Lac
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10 Lac
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10 Lac is a O-type (Blue) star. It carries the designation 10 Lac.
At a distance of roughly 1,726 light-years, 10 Lac is a distant star lying deep within the Milky Way galaxy.
10 Lac is classified as a spectral class O star (O-type (Blue)) on the Harvard spectral classification system.
With an apparent magnitude of +4.89, 10 Lac sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue hue, which corresponds to a B-V color index of -0.207.
物理的特性
| スペクトル型 | O Class O — O-type (Blue) |
| 色指数 (B−V) | -0.207 |
観測
| 見かけの等級 | +4.89 |
| 絶対等級 | -3.73 |
| 距離 | 1,726 ly |
位置
| 赤経 | 22h 39.26m |
| 赤緯 | 39° 3.02′ |