Galaxy · Spiral
NGC 7620
NGC 7620 is a galaxy in the direction of the constellation Pegasus, 446.5 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pegasus |
| Distance | 446.5 million light-years (136.89 Mpc) |
| Diameter | 146,700 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −22.48 |
| Apparent magnitude | magnitude 13.20 |
| Luminosity | 4.3 × the Milky Way |
| Right ascension (J2000) | 23h 20m 05.7s |
| Declination (J2000) | +24° 13′ 16″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.20. Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 446 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 7,920.2 billion years.