Galaxy · Elliptical
NGC 3457
NGC 3457 is a galaxy in the direction of the constellation Leo, 53.9 million light-years away.
| Type | Elliptical |
|---|---|
| Constellation | Leo |
| Distance | 53.9 million light-years (16.54 Mpc) |
| Diameter | 19,200 light-years · 0.22 × the Milky Way |
| Absolute magnitude | magnitude −18.26 |
| Apparent magnitude | magnitude 12.83 |
| Luminosity | 0.088 × the Milky Way |
| Right ascension (J2000) | 10h 54m 48.6s |
| Declination (J2000) | +17° 37′ 16″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.83. Visible from the whole Northern Hemisphere and south to latitude 72° S. North of latitude 72° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 54 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 957.0 billion years.