Galaxy · Barred spiral
NGC 7184
NGC 7184 is a galaxy in the direction of the constellation Aquarius, 122.1 million light-years away.
| Type | Barred spiral |
|---|---|
| Constellation | Aquarius |
| Distance | 122.1 million light-years (37.43 Mpc) |
| Diameter | 260,700 light-years · 3 × the Milky Way |
| Absolute magnitude | magnitude −22.21 |
| Apparent magnitude | magnitude 10.66 |
| Luminosity | 3.3 × the Milky Way |
| Right ascension (J2000) | 22h 02m 39.8s |
| Declination (J2000) | −20° 48′ 46″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.66. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° S 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 122 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 2,165.6 billion years.