Galaxy · Lenticular
NGC 7777
NGC 7777 is a galaxy in the direction of the constellation Pegasus, 325.7 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Pegasus |
| Distance | 325.7 million light-years (99.87 Mpc) |
| Diameter | 149,100 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −22.21 |
| Apparent magnitude | magnitude 12.79 |
| Luminosity | 3.3 × the Milky Way |
| Right ascension (J2000) | 23h 53m 12.5s |
| Declination (J2000) | +28° 17′ 00″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.79. Visible from the whole Northern Hemisphere and south to latitude 62° S. North of latitude 62° 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 326 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 5,778.3 billion years.