Galaxy · Spiral
NGC 250
NGC 250 is a galaxy in the direction of the constellation Pisces, 243.9 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pisces |
| Distance | 243.9 million light-years (74.77 Mpc) |
| Diameter | 97,500 light-years · 1.1 × the Milky Way |
| Absolute magnitude | magnitude −20.72 |
| Apparent magnitude | magnitude 13.65 |
| Luminosity | 0.85 × the Milky Way |
| Right ascension (J2000) | 0h 47m 16.0s |
| Declination (J2000) | +7° 54′ 36″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.65. Visible from the whole Northern Hemisphere and south to latitude 82° S. 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 244 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 4,326.0 billion years.