Galaxy · Spiral
NGC 7197
NGC 7197 is a galaxy in the direction of the constellation Lacerta, 204.0 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Lacerta |
| Distance | 204.0 million light-years (62.54 Mpc) |
| Diameter | 153,900 light-years · 1.8 × the Milky Way |
| Absolute magnitude | magnitude −22.37 |
| Apparent magnitude | magnitude 11.61 |
| Luminosity | 3.9 × the Milky Way |
| Right ascension (J2000) | 22h 02m 58.1s |
| Declination (J2000) | +41° 03′ 32″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.61. Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° N it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 204 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 3,618.4 billion years.