Galaxy · Barred spiral
IC 1931
IC 1931 is a galaxy in the direction of the constellation Taurus, 434.8 million light-years away.
| Type | Barred spiral (estimated) |
|---|---|
| Constellation | Taurus |
| Distance | 434.8 million light-years (133.30 Mpc) |
| Diameter | 126,200 light-years · 1.4 × the Milky Way |
| Absolute magnitude | magnitude −21.06 |
| Apparent magnitude | magnitude 14.56 |
| Luminosity | 1.2 × the Milky Way |
| Right ascension (J2000) | 3h 28m 57.7s |
| Declination (J2000) | +1° 45′ 03″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.56. Visible from the whole Northern Hemisphere and south to latitude 88° S. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 435 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 7,712.5 billion years.