Key facts
- Category
- Stars
- Object class
- M-type red dwarf star
- Composition
- Hydrogen and helium
- Scale fact
- 543,000 kmdiameter
- Mass
- ~0.39 solar masses
- Temperature
- ~3,550 K surface
Lalande 21185
543,000 kmdiameter
Visual creditscaleofspace.org / CC BY-NC 4.0
Details
Lalande 21185 is a nearby red dwarf in Ursa Major, also cataloged as Gliese 411 and HD 95735. It is the brightest red dwarf in the northern celestial hemisphere, yet it is still too dim for unaided eyes and is better known through telescopes, surveys, and its nearby planetary system.
Lalande 21185, also cataloged as Gliese 411, is a red dwarf about eight light-years away. It has only about 39% of the Sun’s mass and remains too faint to see without a telescope despite being one of the nearest stellar systems.
Its large proper motion helped identify it as a nearby star before accurate modern parallax measurements were available. Faint red dwarfs like it are the most common stars in the Galaxy.
Links
- Editorial guides
- Universe journey
- Solar neighborhood
- Preset views
- Wikipedia
- Lalande 21185 on Wikipedia
Size neighbors
Objects near Lalande 21185 on the scale
On the logarithmic size axis, Lalande 21185 falls between Proxima Centauri and 61 Cygni A. The band uses nearby M-type red dwarf star records.
Shared physical scale
415,235km
Sources
References for Lalande 21185
Measurements and descriptive context are compiled by the Scale of Space team from the references below. If you find an error, please let us know.
- Lalande 21185 — Wikipedia
- Visual: scaleofspace.org / CC BY-NC 4.0
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About
Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.
Guides explain selected parts of that range, while focused views filter the objects by subject.