Map of the Universe
Ursa Major I
Dwarf galaxy · Satellite galaxy of the Milky Way
About Ursa Major I
Ursa Major I is about 317,252 light-years from the Sun, so the light we see from it left about 317,252 years ago.
It is 332,773 light-years from the centre of the Milky Way.
The map lists it as a dwarf galaxy and shows it at the scale of the Milky Way and the Local Group, drawn on the plane of the Milky Way.
Key numbers
| Distance | 317,252 light-years (97.27 kpc) |
|---|---|
| Distance from the Galactic centre | 332,773 light-years |
| Galactic coordinates | l = 159.36°, b = +54.43° |
| Absolute magnitude (V) | -5.1 |
| Stellar mass | 1.95 × 10⁴ suns |
| Half-light radius | 767 light-years |
Data: Local Volume Database v1.1.1 (Pace 2025).
Where it is
Its place in the universe, from the inside out: Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.
Zoom out to see it in context: Magellanic Clouds, a view about 520,000 light-years across.
From Wikipedia
Ursa Major I Dwarf (UMa I dSph) is a dwarf spheroidal galaxy that orbits the Milky Way galaxy. It was discovered in 2005 within the constellation Ursa Major and is the third least luminous known galaxy.
Excerpt from the Wikipedia article Ursa Major I Dwarf, licensed CC BY-SA 4.0.
Nearby on the map
- NGC 2419 Globular cluster
- Willman 1 Dwarf galaxy
- Ursa Major II Dwarf galaxy
- Koposov 2 Globular cluster
- Draco II Dwarf galaxy
- Stellar halo (break radius) Galactic structure