Galaxy · Elliptical
SexDSph
SexDSph is a galaxy in the direction of the constellation Sextans, 293,500 light-years away.
| Type | Elliptical |
|---|---|
| Constellation | Sextans |
| Distance | 293,500 light-years (90.0 kpc) |
| Diameter | 2,740 light-years · 0.031 × the Milky Way |
| Absolute magnitude | magnitude −9.30 |
| Apparent magnitude | magnitude 10.47 |
| Luminosity | 2.3 × 10⁻⁵ × the Milky Way |
| Right ascension (J2000) | 10h 13m 03.0s |
| Declination (J2000) | −1° 36′ 52″ |
| Source | Updated Nearby Galaxy Catalog (Karachentsev et al. 2013) |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.47. Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 294 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 5.2 billion years.