Galaxy · Spiral
NGC 7356
NGC 7356 is a galaxy in the direction of the constellation Pegasus, 338.9 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pegasus |
| Distance | 338.9 million light-years (103.91 Mpc) |
| Diameter | 160,600 light-years · 1.8 × the Milky Way |
| Absolute magnitude | magnitude −21.64 |
| Apparent magnitude | magnitude 13.44 |
| Luminosity | 2 × the Milky Way |
| Right ascension (J2000) | 22h 42m 02.4s |
| Declination (J2000) | +30° 42′ 31″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.44. 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 August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 339 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 6,012.0 billion years.