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Vivid Andromeda Galaxy-M31
This is a reprocessed version from pervious dates. The contrast of the background has been adjusted and the color rending has been improved. It becomes natural.
Still, it is my first time using such a wide-field telescope-Takahashi Epsilon 130f3.3 d=430 with a full-frame camera Qhy367c to aim at the Andromeda Galaxy-M31. Although the Signal to Noise Ratio is not enough due to short time exposue of each frame and short time intergration, the faint nebular around the galaxy is totally appeared！
Thinks to the extremely excellent quality of the sky of Gemini Observatory.
The Andromeda Galaxy (/ænˈdrɒmɪdə/), also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way.[4] Its name stems from the area of the Earth's sky in which it appears, the constellation of Andromeda.
The 2006 observations by the Spitzer Space Telescope revealed that the Andromeda Galaxy contains approximately one trillion stars, more than twice the number of the Milky Way's estimated 200 to 400 billion stars. The Andromeda Galaxy's mass is estimated to be around 1.76 times that of the Milky Way Galaxy (~0.8-1.5×1012 solar masses [9][10] vs the Milky Way's 8.5×1011 solar masses), though a 2018 study found that the Andromeda Galaxy's mass is roughly the same as the Milky Way's. The Andromeda Galaxy, spanning approximately 220,000 light-years, is the largest galaxy in the Local Group, which is also home to the Triangulum Galaxy and other minor galaxies.
The Milky Way and Andromeda galaxies are expected to collide in ~4.5 billion years, merging to form a giant elliptical galaxy or a large disc galaxy.[15] With an apparent magnitude of 3.4, the Andromeda Galaxy is among the brightest of the Messier objects making it visible to the naked eye from Earth on moonless nights, even when viewed from areas with moderate light pollution. | 
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