Galaxy · Lenticular
NGC 4789
NGC 4789 is a galaxy in the direction of the constellation Coma Berenices, 389.8 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Coma Berenices |
| Distance | 389.8 million light-years (119.50 Mpc) |
| Diameter | 264,500 light-years · 3 × the Milky Way |
| Absolute magnitude | magnitude −23.05 |
| Apparent magnitude | magnitude 12.34 |
| Luminosity | 7.2 × the Milky Way |
| Right ascension (J2000) | 12h 54m 19.0s |
| Declination (J2000) | +27° 04′ 05″ |
| 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 63° S. North of latitude 63° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 390 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 6,914.0 billion years.