Galaxy · Spiral
NGC 7025
NGC 7025 is a galaxy in the direction of the constellation Delphinus, 231.5 million light-years away.
| Type | Spiral |
|---|---|
| Constellation | Delphinus |
| Distance | 231.5 million light-years (70.97 Mpc) |
| Diameter | 147,300 light-years · 1.7 × the Milky Way |
| Absolute magnitude | magnitude −22.60 |
| Apparent magnitude | magnitude 11.66 |
| Luminosity | 4.8 × the Milky Way |
| Right ascension (J2000) | 21h 07m 47.3s |
| Declination (J2000) | +16° 20′ 09″ |
| Source | 2MASS Redshift Survey (Huchra et al. 2012) |
In the sky
A telescope is needed to see it: its apparent magnitude is 11.66. Visible from the whole Northern Hemisphere and south to latitude 74° S. North of latitude 74° 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 231 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 4,106.2 billion years.