Galaxy · Elliptical
KKH 57
KKH 57 is a galaxy in the direction of the constellation Ursa Major, 12.8 million light-years away.
| Type | Elliptical |
|---|---|
| Constellation | Ursa Major |
| Distance | 12.8 million light-years (3.91 Mpc) |
| Diameter | 2,283 light-years · 0.026 × the Milky Way |
| Absolute magnitude | magnitude −10.80 |
| Apparent magnitude | magnitude 17.16 |
| Luminosity | 9.1 × 10⁻⁵ × the Milky Way |
| Right ascension (J2000) | 10h 00m 16.0s |
| Declination (J2000) | +63° 11′ 06″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 17.16. Visible from the whole Northern Hemisphere and south to latitude 27° S. North of latitude 27° N it never sets. It stands highest at midnight in February, 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.