Galaxy · Irregular
DDO 181
DDO 181 is a galaxy in the direction of the constellation Canes Venatici, 9.82 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Canes Venatici |
| Distance | 9.82 million light-years (3.01 Mpc) |
| Diameter | 6,719 light-years · 0.077 × the Milky Way |
| Absolute magnitude | magnitude −13.80 |
| Apparent magnitude | magnitude 13.59 |
| Luminosity | 0.0014 × the Milky Way |
| Right ascension (J2000) | 13h 39m 53.8s |
| Declination (J2000) | +40° 44′ 21″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.59. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 9.8 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 174.2 billion years.