Galaxy · Lenticular
NGC 6798
NGC 6798 is a galaxy in the direction of the constellation Cygnus, 111.4 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Cygnus |
| Distance | 111.4 million light-years (34.14 Mpc) |
| Diameter | 68,400 light-years · 0.78 × the Milky Way |
| Absolute magnitude | magnitude −20.21 |
| Apparent magnitude | magnitude 12.46 |
| Luminosity | 0.53 × the Milky Way |
| Right ascension (J2000) | 19h 24m 03.2s |
| Declination (J2000) | +53° 37′ 29″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.46. Visible from the whole Northern Hemisphere and south to latitude 36° S. North of latitude 36° N it never sets. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 111 million years ago. At that time dinosaurs ruled the Earth. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1,975.3 billion years.