Galaxy · Lenticular
IC 308
IC 308 is a galaxy in the direction of the constellation Perseus, 293.2 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Perseus |
| Distance | 293.2 million light-years (89.89 Mpc) |
| Diameter | 133,900 light-years · 1.5 × the Milky Way |
| Absolute magnitude | magnitude −21.39 |
| Apparent magnitude | magnitude 13.38 |
| Luminosity | 1.6 × the Milky Way |
| Right ascension (J2000) | 3h 16m 15.8s |
| Declination (J2000) | +41° 10′ 51″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.38. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 293 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 5,200.9 billion years.