M32
M32 or Messier 32 (also known as NGC 221) is a dwarf elliptical galaxy located in the Andromeda constellation. It is a satellite galaxy of the much larger Andromeda Galaxy and is one of the closest galaxies to the Milky Way.
Discovery and Observation[edit | edit source]
M32 was discovered by Guillaume Le Gentil in 1749. It is visible through a small telescope as a faint patch of light. The galaxy is often observed as part of the Messier catalogue, a collection of astronomical objects catalogued by French astronomer Charles Messier.
Characteristics[edit | edit source]
M32 is characterized by its compact size and high surface brightness. It is composed primarily of older, red stars, indicating a lack of recent star formation. However, the galaxy also contains a significant population of younger, blue stars in its core, suggesting a complex evolutionary history.
Interaction with Andromeda Galaxy[edit | edit source]
M32 is believed to have interacted with the Andromeda Galaxy in the past. This interaction may have stripped away much of M32's outer layers, leaving behind the compact core observed today. The interaction may also have triggered a burst of star formation in M32's core, leading to the presence of younger stars.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
