Galaxy · Spiral
IC 4823
IC 4823 is a galaxy in the direction of the constellation Pavo, 516.8 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Pavo |
| Distance | 516.8 million light-years (158.46 Mpc) |
| Diameter | 231,200 light-years · 2.6 × the Milky Way |
| Absolute magnitude | magnitude −23.08 |
| Apparent magnitude | magnitude 12.92 |
| Luminosity | 7.4 × the Milky Way |
| Right ascension (J2000) | 19h 12m 15.8s |
| Declination (J2000) | −63° 58′ 36″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.92. Visible from the whole Southern Hemisphere and north to latitude 26° N. South of latitude 26° 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 517 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 9,168.2 billion years.