Galaxy · Irregular
A0554+07
A0554+07 is a galaxy in the direction of the constellation Orion, 17.9 million light-years away.
| Type | Irregular |
|---|---|
| Constellation | Orion |
| Distance | 17.9 million light-years (5.50 Mpc) |
| Diameter | 6,328 light-years · 0.072 × the Milky Way |
| Absolute magnitude | magnitude −13.50 |
| Apparent magnitude | magnitude 15.20 |
| Luminosity | 0.0011 × the Milky Way |
| Right ascension (J2000) | 5h 57m 36.7s |
| Declination (J2000) | +7° 29′ 31″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.20. Visible from the whole Northern Hemisphere and south to latitude 83° S. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 18 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 318.2 billion years.