Galaxy · Irregular
Arp 211
Arp 211 is a galaxy in the direction of the constellation Canes Venatici, 21.6 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Canes Venatici |
| Distance | 21.6 million light-years (6.61 Mpc) |
| Diameter | 5,349 light-years · 0.061 × the Milky Way |
| Absolute magnitude | magnitude −14.00 |
| Apparent magnitude | magnitude 15.10 |
| Luminosity | 0.0017 × the Milky Way |
| Right ascension (J2000) | 12h 37m 21.3s |
| Declination (J2000) | +38° 44′ 43″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.10. Visible from the whole Northern Hemisphere and south to latitude 51° S. North of latitude 51° 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 22 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 382.4 billion years.