வெறும் கண்களால் பார்த்தாலே தெரியும் Andromeda Galaxy | Milkyway Galaxy | Vaan Veli

Sat, 04 Jul 2026 12:41:01 +0000

The Andromeda Galaxy is a barred spiral galaxy that is the closest major galaxy to the Milky Way. It was formerly known as the Andromeda Nebula and is catalogued as Messier 31, M31, and NGC 224. Andromeda has a diameter of around 46.56 kiloparsecs and is located approximately 765 kpc from Earth.

The Andromeda Galaxy is the closest spiral galaxy to our Milky Way. It is located approximately 2.5 million light-years away from Earth.

Andromeda is larger and more massive than the Milky Way. It is estimated to be over 220,000 light-years in diameter, which makes it roughly 20% larger than our galaxy.

Andromeda is one of just a few galaxies visible to the naked eye from Earth. On a bright, dark night, it appears as a faint, hazy patch in the Andromeda constellation.

The Andromeda Galaxy is on collision course with the Milky Way. However, this collision is projected to occur in around 4 billion years, and it is unlikely that individual stars inside each galaxy will collide due to their immense distances.

Andromeda, like the Milky Way, has a spiral structure consisting of a large center bulge and spiral arms. It has billions of stars, nebulae, star clusters, and other cosmic objects.

The Andromeda Galaxy's center is extremely luminous and dominated by a dense cluster of stars. This region is referred to as the nucleus or center bulge.

Galactic Halo: A large halo of stars surrounds the central bulge, many of which are ancient and have low metal content. The halo stretches well beyond the galaxy's observable disk.

Andromeda has multiple satellite galaxies, including M31 and M32. M32 and M110 are particularly notable. M32 is a tiny elliptical galaxy, and M110 is a dwarf elliptical galaxy.

Stellar Population: Andromeda is home to a diverse group of stars. It has both youthful, blazing stars in its spiral arms and older, cooler stars in its center.

Observable with Various Instruments: Scientists study the Andromeda Galaxy using various instruments across different wavelengths, including visible light, radio waves, and X-rays. Observing Andromeda helps astronomers understand the structure and evolution of galaxies.

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