Galaxy · Spiral
NGC 7090
NGC 7090 is a galaxy in the direction of the constellation Indus, 21.9 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Indus |
| Distance | 21.9 million light-years (6.70 Mpc) |
| Diameter | 62,100 light-years · 0.71 × the Milky Way |
| Absolute magnitude | magnitude −19.20 |
| Apparent magnitude | magnitude 9.93 |
| Luminosity | 0.21 × the Milky Way |
| Right ascension (J2000) | 21h 36m 28.6s |
| Declination (J2000) | −54° 33′ 26″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.93. Visible from the whole Southern Hemisphere and north to latitude 35° N. South of latitude 35° 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 22 million years ago. At that time the dinosaurs were gone and mammals were diversifying; there was no human lineage yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 387.6 billion years.