OJ 287
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| Observation data: J2000.0 epoch | |
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| Constellation: | |
| Right ascension: | 08h 54m 48.88s |
| Declination: | +20° 06′ 30.6″ |
| Redshift: | |
| Distance: | |
| Type: | |
| Apparent dimensions (V): | |
| Apparent magnitude (V): | |
| Notable features: | |
| Other designations | |
| See also: Galaxy, List of galaxies | |
OJ 287 is a BL Lac object, with over 100 years of observational data. It has a periodic variation of 11-12 years. The variation suggests that a supermassive binary black hole is the engine, with an 11-12 year orbital period.
[edit] External links
- Object: OJ 287 (SAO Observers)
- A Supermassive Black Hole Pairing (Centauri Dreams)
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