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Credit & Copyright: Richard Hammar
Explanation:
Spiral galaxy M33 is a mid-sized member of our
Local Group of Galaxies.
M33 is also called the
Triangulum Galaxy for the constellation in which it resides.
About four times smaller (in radius) than our
Milky Way Galaxy
and the Andromeda Galaxy (M31),
it is much larger than the many of the local
dwarf spheroidal galaxies.
M33's proximity to
M31 causes it to be
thought by some to be a satellite galaxy
of this more massive galaxy.
M33's proximity to our
Milky Way Galaxy
causes it to appear more than twice the angular size of the
Full Moon, and be
visible with a good pair of binoculars.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: spiral galaxy - Local Group of Galaxies
Publications with words: spiral galaxy - Local Group of Galaxies
See also:
- Webb and Hubble: IC 5332
- APOD: 2026 February 4 Á Spiral Galaxy NGC 1512: Wide Field
- Barred Spiral Galaxy NGC 1365 from Webb
- APOD: 2026 January 14 Á M51: The Whirlpool Galaxy
- IC 342: Hidden Galaxy in Camelopardalis
- NGC 253: Dusty Island Universe
- APOD: 2025 November 5 Á Spiral Galaxy NGC 3370 from Hubble