Galaxy · Lenticular
NGC 7553
NGC 7553 is a galaxy in the direction of the constellation Pegasus, 241.0 million light-years away.
| Type | Lenticular |
|---|---|
| Constellation | Pegasus |
| Distance | 241.0 million light-years (73.90 Mpc) |
| Diameter | 58,300 light-years · 0.67 × the Milky Way |
| Absolute magnitude | magnitude −20.27 |
| Apparent magnitude | magnitude 14.07 |
| Luminosity | 0.56 × the Milky Way |
| Right ascension (J2000) | 23h 15m 33.1s |
| Declination (J2000) | +19° 02′ 53″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.07. Visible from the whole Northern Hemisphere and south to latitude 71° S. North of latitude 71° N it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 241 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 4,275.7 billion years.