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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:
- APOD: 2025 September 4 Á NGC 4565: Galaxy on Edge
- APOD: 2025 August 28 Á Galaxies, Stars, and Dust
- APOD: 2025 August 22 Á A Tale of Two Nebulae
- APOD: 2025 August 19 Á Giant Galaxies in Pavo
- APOD: 2025 August 18 Á NGC 1309: A Useful Spiral Galaxy
- APOD: 2025 July 4 Á NGC 6946 and NGC 6939
- APOD: 2025 June 30 Á NGC 4651: The Umbrella Galaxy