The Andromeda Galaxy also known as Messier 31, M31, or NGC 224. source
The Andromeda Galaxy also known as Messier 31, M31, or NGC 224.
The Andromeda Galaxy is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth. source
The Andromeda Galaxy is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth.
The Andromeda Galaxy is the nearest major galaxy to the Milky Way. source
The Andromeda Galaxy is the nearest major galaxy to the Milky Way.
The Andromeda Galaxy was often referred to as the Great Andromeda Nebula in older texts. source
The Andromeda Galaxy was often referred to as the Great Andromeda Nebula in older texts.
The Andromeda Galaxy received its name from the area of the sky in which it appears. source
The Andromeda Galaxy received its name from the area of the sky in which it appears.
The constellation of Andromeda Galaxy, which was named after the mythological princess Andromeda. source
The constellation of Andromeda Galaxy, which was named after the mythological princess Andromeda.
Andromeda Galaxy is approximately 220,000 light years across. source
Andromeda Galaxy is approximately 220,000 light years across.
The Andromeda Galaxy is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and other smaller galaxies. source
The Andromeda Galaxy is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and other smaller galaxies.
The 2006 observations by the Spitzer Space Telescope revealed that Andromeda Galaxy contains one trillion (1012) stars. source
The 2006 observations by the Spitzer Space Telescope revealed that Andromeda Galaxy contains one trillion (1012) stars.
The mass of the Andromeda Galaxy is estimated to be 1.5×1012 solar masses,while the Milky Way is estimated to be 8.5×1011 solar masses. source
The mass of the Andromeda Galaxy is estimated to be 1.5×1012 solar masses,while the Milky Way is estimated to be 8.5×1011 solar masses.
The Milky Way and Andromeda galaxies are expected to collide in 4.5 billion years. source
The Milky Way and Andromeda galaxies are expected to collide in 4.5 billion years.
The apparent magnitude of the Andromeda Galaxy, at 3.4,is among the brightest of the Messier objects. source
The apparent magnitude of the Andromeda Galaxy, at 3.4,is among the brightest of the Messier objects.
In the year 964, the Persian astronomer Abd al-Rahman al-Sufi described the Andromeda Galaxy, in his Book of Fixed Stars as a "nebulous smear". source
In the year 964, the Persian astronomer Abd al-Rahman al-Sufi described the Andromeda Galaxy, in his Book of Fixed Stars as a "nebulous smear".
In 1917, Heber Curtis observed a nova within Andromeda, Searching the photographic record, 11 more novae were discovered. source
In 1917, Heber Curtis observed a nova within Andromeda, Searching the photographic record, 11 more novae were discovered.
In 1943, Walter Baade was the first person to resolve stars in the central region of the Andromeda Galaxy source
In 1943, Walter Baade was the first person to resolve stars in the central region of the Andromeda Galaxy
In 2005, an eclipsing binary star was discovered in the Andromeda Galaxy. source
In 2005, an eclipsing binary star was discovered in the Andromeda Galaxy.
