Galaxy · Barred spiral
NGC 5798
NGC 5798 is a galaxy in the direction of the constellation Boötes, 83.3 million light-years away.
| Type | Barred spiral |
|---|---|
| Constellation | Boötes |
| Distance | 83.3 million light-years (25.54 Mpc) |
| Diameter | 46,700 light-years · 0.53 × the Milky Way |
| Absolute magnitude | magnitude −18.20 |
| Apparent magnitude | magnitude 13.84 |
| Luminosity | 0.083 × the Milky Way |
| Right ascension (J2000) | 14h 57m 38.0s |
| Declination (J2000) | +29° 58′ 07″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.84. Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° 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 83 million years ago. At that time dinosaurs ruled the Earth. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1,477.7 billion years.