Galaxy · Spiral
HIPASS J0705-20
HIPASS J0705-20 is a galaxy in the direction of the constellation Canis Major, 23.6 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Canis Major |
| Distance | 23.6 million light-years (7.23 Mpc) |
| Diameter | 3,262 light-years · 0.037 × the Milky Way |
| Absolute magnitude | magnitude −12.60 |
| Apparent magnitude | magnitude 16.70 |
| Luminosity | 4.8 × 10⁻⁴ × the Milky Way |
| Right ascension (J2000) | 7h 05m 45.0s |
| Declination (J2000) | −20° 59′ 30″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 16.70. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 24 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 418.3 billion years.