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The Milky Way is a barred spiral galaxy with two major arms and a number of minor arms or spurs. The Perseus Spiral Arm, with a radius of approximately 10.7 kiloparsecs, is located between the minor Cygnus and Carina–Sagittarius Arms. It is named after the Perseus constellation in the direction of which it is seen from Earth.
TRAPPIST-1 is a cool red dwarf star [c] with seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth, and has a surface temperature of about 2,566 K (2,290 °C; 4,160 °F ). Its radius is slightly larger than Jupiter and it has a mass of about 9% of the Sun.
Leo I is a dwarf spheroidal galaxy in the constellation Leo. At about 820,000 light-years distant, it is a member of the Local Group of galaxies and is thought to be one of the most distant satellites of the Milky Way galaxy. It was discovered in 1950 by Albert George Wilson on photographic plates of the National Geographic Society – Palomar ...
The Reapers are a fictional fleet of sentient starships that serve as the main antagonists of the Mass Effect trilogy. The design of the Reapers was inspired by H. P. Lovecraft 's Cthulhu Mythos deities. Within the series, the Reapers cause galactic-level mass extinctions every fifty-thousand years. The Reapers and their technology are capable ...
Calculated proper motion of the centre of mass for α Centauri AB is about 3620 mas/y (milliarcseconds per year) toward the west and 694 mas/y toward the north, giving an overall motion of 3686 mas/y in a direction 11° north of west. The motion of the centre of mass is about 6.1 arcmin each century, or 1.02° each millennium. The speed in the ...
Mass Effect 3 is a 2012 action role-playing video game developed by BioWare and published by Electronic Arts. The third major entry in the Mass Effect series and the final installment of the original trilogy, it was released in March 2012 for Microsoft Windows, Xbox 360, and PlayStation 3. A Wii U version of the game, entitled Mass Effect 3 ...
Most discussion of the ISM concerns spiral galaxies like the Milky Way, in which nearly all the mass in the ISM is confined to a relatively thin disk, typically with scale height about 100 parsecs (300 light years), which can be compared to a typical disk diameter of 30,000 parsecs. Gas and stars in the disk orbit the galactic centre with ...
Mode (s) Single-player. Mass Effect 2 is an action role-playing video game developed by BioWare and published by Microsoft Game Studios and Electronic Arts for Windows and Xbox 360 in 2010 and published by Electronic Arts for PlayStation 3 in 2011. It is the second installment in the Mass Effect series and a sequel to the original Mass Effect.