Galaxy · Spiral
NGC 765
NGC 765 is a galaxy in the direction of the constellation Aries, 238.6 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Aries |
| Distance | 238.6 million light-years (73.14 Mpc) |
| Diameter | 156,000 light-years · 1.8 × the Milky Way |
| Absolute magnitude | magnitude −21.96 |
| Apparent magnitude | magnitude 12.36 |
| Luminosity | 2.7 × the Milky Way |
| Right ascension (J2000) | 1h 58m 48.0s |
| Declination (J2000) | +24° 53′ 33″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.36. Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 239 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 4,231.7 billion years.