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- Approximately 200,000 light-yearsThe Andromeda Galaxy is located about 2,480,000 light-years from Earth, and its diameter is approximately 200,000 light-years.
www.britannica.com/place/Andromeda-Galaxy - See more
See all on WikipediaAndromeda Galaxy - Wikipedia
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224. Andromeda has a D25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) and is approximately … See more
The Andromeda Galaxy is visible to the naked eye in dark skies. Around the year 964 CE, the Persian astronomer Abd al-Rahman al-Sufi described the Andromeda Galaxy in his See more
Based on its appearance in visible light, the Andromeda Galaxy is classified as an SA(s)b galaxy in the See more
Like the Milky Way, the Andromeda Galaxy has smaller satellite galaxies, consisting of over 20 known dwarf galaxies. The Andromeda Galaxy's dwarf galaxy population is very similar to the Milky Way's, but the galaxies are much more numerous. The … See more
The estimated distance of the Andromeda Galaxy from our own was doubled in 1953 when it was discovered that there is a second, dimmer type of Cepheid variable star. … See more
There are approximately 460 globular clusters associated with the Andromeda Galaxy. The most massive of these clusters, identified as Mayall II, nicknamed Globular One, has a greater luminosity than any other known globular cluster in the See more
The Andromeda Galaxy is approaching the Milky Way at about 110 kilometres (68 miles) per second. It has been measured approaching relative to the Sun at around 300 km/s (190 mi/s) … See more
Wikipedia text under CC-BY-SA license Andromeda Galaxy | Description, Location, Distance, …
Jan 27, 2025 · Andromeda Galaxy, great spiral galaxy in the constellation Andromeda, the nearest large galaxy. It is one of the few visible to the unaided …
Messier 31 (The Andromeda Galaxy) - Science@NASA
Andromeda is the same size as the Milky Way
Feb 14, 2018 · Just how big is the Andromeda galaxy? Astronomers used to believe that the Andromeda galaxy, our nearest galactic neighbor, was three times as massive as the Milky Way. Not anymore.
Andromeda Galaxy (NGC 224, Messier 31) - Universe …
Andromeda Galaxy radius is 100,000.00 light years; to put it another way, it has a diameter of 200,000 light years. It would take a spaceship 200,000 years to travel at the speed of light from one side to the other.
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Andromeda Galaxy: Facts about our closest galactic …
Oct 26, 2023 · Andromeda is about 260,000 light-years wide, according to NASA, making it the largest galaxy in the Local Group. However, its mass is roughly comparable to or even less than that of the...
M31 - The Andromeda Galaxy: Facts, Type, Age, …
Feb 24, 2024 · Learn about the Andromeda Galaxy, the closest spiral galaxy to our Milky Way, with a diameter of about 220,000 light-years. Discover its type, age, mass, temperature, color, history, and future collision with our galaxy.
Andromeda Galaxy | Universe Size Comparison Wiki
Andromeda is a spiral galaxy, just like our own galaxy, with a diameter of about 152,000 ly (46,560 pc) [1] and a mass of about 1.5 trillion solar masses. This galaxy also has about 1 trillion stars, about 3x more than the Milky Way Galaxy .
15 Interesting Andromeda Galaxy Facts (M31)
Mar 16, 2017 · Andromeda is also called Messier 31, or M31 for short, after French astronomer Charles Messier, who cataloged about 100 stellar objects in 1771. M31 is considerably larger than our own galaxy, being approximately …
Andromeda Galaxy (M31) How to See, Facts, Collision
Dec 7, 2024 · The Andromeda Galaxy contains 1 trillion stars and measures 220,000 light-years in diameter. The galaxy features a supermassive black hole of 1.5 billion solar masses at its …
The Andromeda Galaxy: A Comprehensive Guide
Feb 26, 2024 · Learn about the history, structure and future of the Andromeda Galaxy, the closest major galaxy to our Milky Way. Find out its diameter, distance, mass, features and more in this comprehensive guide.
Andromeda Galaxy | Cosmology and Astronomy Encyclopedia …
The Andromeda Galaxy has a diameter of about 46.56 kpc (152,000 ly), making it the largest member of the Local Group of galaxies in terms of extension. The Milky Way and Andromeda …
The Andromeda Galaxy Facts For Kids | Location, Size and …
Andromeda galaxy is the closest huge galaxy to our Milky Way Galaxy. It is the most faraway thing that you can see with the naked eye. The Andromeda Galaxy is the no1 galaxy in the …
Andromeda - Astronomopedia
Jul 29, 2023 · Andromeda is the largest galaxy in the Local Group, with a diameter of around 200,000 light-years and a mass of about 1.5 trillion solar masses. Learn about its spiral arms, …
The Andromeda Galaxy Pictures, Facts, All you Need to Know
Mar 4, 2024 · Andromeda vs Milky Way Size - How Big is the Andromeda Galaxy? The Andromeda Galaxy is the largest object in our Local Group of galaxies. It has a diameter of …
Gigapixels of Andromeda | Scale of the Universe
The Andromeda Galaxy (IPA: /ænˈdrɒmɪdə/), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy approximately 2.5 million light-years …
How big is the Andromeda Galaxy? | Scale of the Universe
The Andromeda Galaxy is 152,000 light-years across, larger than the Milky Way. Learn about its stars, structure, and how it will merge with the Milky Way in billions of years.
Andromeda Galaxy Three Times Bigger in Diameter Than …
May 30, 2005 · Astronomers from Caltech and France have found that the spiral disk of stars in Andromeda is three times larger in diameter than previously estimated. Using Keck …
The Andromeda Galaxy: A Fascinating Spiral Galaxy in Our …
The Andromeda Galaxy is the largest galaxy in the Local Group, located 2.537 million light-years away from Earth. It is a spiral galaxy with a central bar, spiral arms, and more than 500 …
Andromeda Galaxy: Everything You Need to Know
Sep 25, 2023 · Size and Structure: The Andromeda Galaxy spans an impressive diameter of approximately 220,000 light-years, making it more than twice the size of our own Milky Way …
NASA’s Hubble Provides Bird’s-Eye View of Andromeda Galaxy’s …
Feb 27, 2025 · Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon. What …
Hidden Galaxy (IC 342) - Constellation Guide
Feb 17, 2025 · In 1935, American astronomer Harlow Shapley found IC 342 to be the third largest galaxy in the sky by angular size, after the Andromeda Galaxy and the Triangulum Galaxy. …
NASA's Hubble Provides Bird's-Eye View of Andromeda Galaxy's …
Feb 27, 2025 · You can think of our Milky Way galaxy and the neighboring Andromeda galaxy as two giant aircraft carriers accompanied by a flotilla of smaller warships. Those ships in this …
Hubble Determines the Distance to the Andromeda Nebula
By measuring their apparent brightness and oscillation periods, he estimated the distance to this galaxy to be approximately 800,000 light-years. This groundbreaking work was later refined by …
Andromeda's Dwarf Galaxies Reveal Unique Star Formation …
Feb 28, 2025 · The Andromeda Galaxy, our nearest large neighbour, has 36 identified dwarf galaxies. The Hubble telescope took images of Andromeda and its dwarfs during more than …
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