Galaxy · Spiral
NGC 7517
NGC 7517 is a galaxy in the direction of the constellation Pisces, 338.3 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pisces |
| Distance | 338.3 million light-years (103.71 Mpc) |
| Diameter | 96,200 light-years · 1.1 × the Milky Way |
| Absolute magnitude | magnitude −21.26 |
| Apparent magnitude | magnitude 13.82 |
| Luminosity | 1.4 × the Milky Way |
| Right ascension (J2000) | 23h 13m 13.8s |
| Declination (J2000) | −2° 06′ 01″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.82. Visible from the whole Southern Hemisphere and north to latitude 88° N. 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 338 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 6,000.4 billion years.