Galaxy · Irregular
ESO 104-022
ESO 104-022 is a galaxy in the direction of the constellation Pavo, 21.9 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Pavo |
| Distance | 21.9 million light-years (6.70 Mpc) |
| Diameter | 10,000 light-years · 0.11 × the Milky Way |
| Absolute magnitude | magnitude −14.50 |
| Apparent magnitude | magnitude 14.63 |
| Luminosity | 0.0028 × the Milky Way |
| Right ascension (J2000) | 18h 55m 41.2s |
| Declination (J2000) | −64° 48′ 39″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.63. Visible from the whole Southern Hemisphere and north to latitude 25° N. South of latitude 25° S it never sets. It stands highest at midnight in July, 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 387.6 billion years.