Galaxy · Elliptical
Segue 2
Segue 2 is a galaxy in the direction of the constellation Aries, 97,800 light-years away.
| Type | Elliptical |
|---|---|
| Constellation | Aries |
| Distance | 97,800 light-years (30.0 kpc) |
| Diameter | 260.9 light-years · 0.003 × the Milky Way |
| Absolute magnitude | magnitude −2.90 |
| Apparent magnitude | magnitude 14.49 |
| Luminosity | 6.3 × 10⁻⁸ × the Milky Way |
| Right ascension (J2000) | 2h 19m 16.0s |
| Declination (J2000) | +20° 10′ 31″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.49. Visible from the whole Northern Hemisphere and south to latitude 70° S. North of latitude 70° N it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 98 thousand years ago. At that time Homo sapiens was spreading out of Africa; there was no farming yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.7 billion years.