Galaxy · Spiral
NGC 7793
NGC 7793 is a galaxy in the direction of the constellation Sculptor, 12.8 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Sculptor |
| Distance | 12.8 million light-years (3.91 Mpc) |
| Diameter | 52,500 light-years · 0.6 × the Milky Way |
| Absolute magnitude | magnitude −19.10 |
| Apparent magnitude | magnitude 8.86 |
| Luminosity | 0.19 × the Milky Way |
| Right ascension (J2000) | 23h 57m 49.4s |
| Declination (J2000) | −32° 35′ 24″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
Too faint for the naked eye (magnitude 8.86); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 57° N. South of latitude 57° S it never sets. 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 13 million years ago. At that time the dinosaurs were gone and mammals were diversifying; there was no human lineage yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 226.2 billion years.