Galaxy · Lenticular
IC 813
IC 813 is a galaxy in the direction of the constellation Coma Berenices, 325.0 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Coma Berenices |
| Distance | 325.0 million light-years (99.63 Mpc) |
| Diameter | 135,000 light-years · 1.5 × the Milky Way |
| Absolute magnitude | magnitude −21.77 |
| Apparent magnitude | magnitude 13.22 |
| Luminosity | 2.2 × the Milky Way |
| Right ascension (J2000) | 12h 45m 11.8s |
| Declination (J2000) | +23° 02′ 10″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.22. Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 325 million years ago. At that time complex animals were spreading through the seas and over the land; there were no dinosaurs yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5,764.4 billion years.