Galaxy · Spiral
NGC 7797
NGC 7797 is a galaxy in the direction of the constellation Pisces, 412.6 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pisces |
| Distance | 412.6 million light-years (126.49 Mpc) |
| Diameter | 146,600 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −21.92 |
| Apparent magnitude | magnitude 13.59 |
| Luminosity | 2.6 × the Milky Way |
| Right ascension (J2000) | 23h 58m 58.9s |
| Declination (J2000) | +3° 38′ 05″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.59. Visible from the whole Northern Hemisphere and south to latitude 86° S. 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 413 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 7,318.5 billion years.