Galaxy · Spiral
NGC 6845A
NGC 6845A is a galaxy in the direction of the constellation Telescopium, 296.2 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Telescopium |
| Distance | 296.2 million light-years (90.80 Mpc) |
| Diameter | 146,300 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −21.98 |
| Apparent magnitude | magnitude 12.81 |
| Luminosity | 2.7 × the Milky Way |
| Right ascension (J2000) | 20h 00m 58.4s |
| Declination (J2000) | −47° 04′ 13″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.81. Visible from the whole Southern Hemisphere and north to latitude 43° N. South of latitude 43° S 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 296 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 5,253.5 billion years.