Stellar stream
AAU AliqaUma
A river of stars — what is left of a cluster or small galaxy the Milky Way pulled apart.
Measured
- Distance
- about 91,446 light-years
How far, from the Sun
About 91,400 light-years. To cross it:
- Light91,400 years
- Voyager 1's speed1.62 billion years
- Driving at 100 km/h987 billion years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
- About 23,000 light-years long, 92,000 light-years away on average.
- Traced by Li2021.
Where this comes from
- Stellar streams: galstreams (Mateu 2023, MNRAS 520, 5225), Copyright (c) 2017, Cecilia Mateu, BSD 3-Clause licence, and the papers each track comes from.
Every catalogue Ouranos draws is credited on the credits page.