collaborators. NGC, IC, UGC, and PGC numbers have been used when possible to allow for easier referencing. The irregular galaxy NGC 55, the spiral galaxy NGC 300...
8 KB (511 words) - 06:23, 22 June 2021
mass of and 175% the radius of the Sun. It has a surface temperature of 6430 K and is 2.8 billion years old. In comparison, the Sun is about 4.6 billion...
11 KB (967 words) - 20:05, 27 April 2024