Map of the Universe
OJ 287
Quasar / active galaxy · BL Lac object in the constellation Cancer
About OJ 287
The light we see from it set out 3.59 billion years ago, when the universe was 10.2 billion years old (redshift 0.306).
The map lists it as a quasar / active galaxy and shows it at the scale of the large-scale universe, drawn on the supergalactic plane.
A blazar thought to host a pair of supermassive black holes that produce flares every 12 years.
Key numbers
| Distance (comoving, today) | 4.09 billion light-years (1,255 Mpc) |
|---|---|
| Redshift z | 0.306 |
| Light travel time | 3.59 billion years |
| Universe's age when this light left | 10.2 billion years |
| Distance method | redshift (Planck 2018 cosmology) |
| Supergalactic coordinates | SGL 66.8°, SGB -43.6° |
Where it is
Its place in the universe, from the inside out: Observable universe.
Zoom out to see it in context: Cosmic web, a view about 11 billion light-years across.
From Wikipedia
OJ 287 is a BL Lacertae object 4 billion light-years from Earth that has produced quasi-periodic optical outbursts going back approximately 120 years, as first apparent on photographic plates from 1891.
Excerpt from the Wikipedia article OJ 287, licensed CC BY-SA 4.0.
Nearby on the map
- 3C 273 Quasar / active galaxy
- Malin 1 Galaxy
- Dark energy takes over (z ≈ 0.3) Cosmic epoch
- Leo Supercluster Supercluster
- MACS J0717.5+3745 Galaxy cluster
- Markarian 231 Quasar / active galaxy