Galaxy · Barred spiral
NGC 7773
NGC 7773 is a galaxy in the direction of the constellation Pegasus, 395.4 million light-years away.
| Type | Barred spiral |
|---|---|
| Constellation | Pegasus |
| Distance | 395.4 million light-years (121.23 Mpc) |
| Diameter | 206,400 light-years · 2.4 × the Milky Way |
| Absolute magnitude | magnitude −22.26 |
| Apparent magnitude | magnitude 13.16 |
| Luminosity | 3.5 × the Milky Way |
| Right ascension (J2000) | 23h 52m 09.9s |
| Declination (J2000) | +31° 16′ 36″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.16. Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° 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 395 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 7,014.1 billion years.