Galaxy · Spiral
NGC 1547
NGC 1547 is a galaxy in the direction of the constellation Eridanus, 446.0 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Eridanus |
| Distance | 446.0 million light-years (136.73 Mpc) |
| Diameter | 197,700 light-years · 2.3 × the Milky Way |
| Absolute magnitude | magnitude −22.34 |
| Apparent magnitude | magnitude 13.34 |
| Luminosity | 3.8 × the Milky Way |
| Right ascension (J2000) | 4h 17m 12.4s |
| Declination (J2000) | −17° 51′ 27″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.34. Visible from the whole Southern Hemisphere and north to latitude 72° N. South of latitude 72° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 446 million years ago. At that time complex animals were spreading through the seas and over the land; there were no dinosaurs yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7,910.9 billion years.