Galaxy · Spiral
NGC 7587
NGC 7587 is a galaxy in the direction of the constellation Pegasus, 408.3 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pegasus |
| Distance | 408.3 million light-years (125.17 Mpc) |
| Diameter | 205,900 light-years · 2.4 × the Milky Way |
| Absolute magnitude | magnitude −22.49 |
| Apparent magnitude | magnitude 13.00 |
| Luminosity | 4.3 × the Milky Way |
| Right ascension (J2000) | 23h 17m 59.1s |
| Declination (J2000) | +9° 40′ 49″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.00. Visible from the whole Northern Hemisphere and south to latitude 80° 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 408 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 7,242.1 billion years.