Galaxy · Lenticular
NGC 6635
NGC 6635 is a galaxy in the direction of the constellation Hercules, 247.4 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Hercules |
| Distance | 247.4 million light-years (75.84 Mpc) |
| Diameter | 116,400 light-years · 1.3 × the Milky Way |
| Absolute magnitude | magnitude −22.06 |
| Apparent magnitude | magnitude 12.34 |
| Luminosity | 2.9 × the Milky Way |
| Right ascension (J2000) | 18h 27m 37.1s |
| Declination (J2000) | +14° 49′ 09″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.34. Visible from the whole Northern Hemisphere and south to latitude 75° S. North of latitude 75° N it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 247 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 4,387.9 billion years.