Berkeley 87
Open cluster
Berkeley 87 is an open cluster in a heavily obscured region of the Milky Way in Cygnus. The rare WO type Wolf-Rayet star WR 142 is a member of Berkeley 87.
This cluster contains HD 229059, which, as of August 2021, is the nearest known star to Earth with a bolometric luminosity greater than 1 million L☉.
| Star name | Effective temperature | Absolute magnitude | Bolometric magnitude | Mass (M☉) | Spectral type |
|---|---|---|---|---|---|
| WR 142 (Berkeley 87-29) | 200000 K | -3.13 | -10.1 | 28.6 | WO2 |
| HD 229059 (Berkeley 87-3) | 26300 K | -7.7 | -10.3 | 69 | B1Ia |
| Berkeley 87-25 | 35700 K | -5.6 | -9.1 | 39 | O8.5III |
| Berkeley 87-15 | 37800 K | -5 | -8.6 | 34 | B[e] |
| Berkeley 87-4 | 29500 K | -5 | -7.9 | 23 | B0.2III |
Sources and credits
This article is adapted from the Wikipedia article “Berkeley 87”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
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