Galaxy · Lenticular
NGC 5818
NGC 5818 is a galaxy in the direction of the constellation Boötes, 365.9 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Boötes |
| Distance | 365.9 million light-years (112.17 Mpc) |
| Diameter | 152,100 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −22.08 |
| Apparent magnitude | magnitude 13.17 |
| Luminosity | 3 × the Milky Way |
| Right ascension (J2000) | 14h 58m 58.4s |
| Declination (J2000) | +49° 49′ 17″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.17. Visible from the whole Northern Hemisphere and south to latitude 40° S. North of latitude 40° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 366 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 6,489.9 billion years.