Messier 87 (NGC 4486): Home of a Famous Black Hole

Most of the public had never heard of the Messier 87 galaxy until a few years ago. This changed on the morning of April 10, 2019, as scientists released the first image of the supermassive black hole at the heart of M87. When the image appeared in my news feed that morning, I recall rushingContinueContinue reading “Messier 87 (NGC 4486): Home of a Famous Black Hole”

HD 118266: An Attractive Orange and Dim Blue Binary in Virgo

Learn about the pretty double star HD 118266 in the constellation Virgo viewed on spring nights. The star also known as HJ 228, is a binary star that has a orange primary and a dimmer blue companion that lies far apart enough for smaller scopes to observe. It’s also known as SAO 100630, HIP 66326, HR 5114.

Struve 1904: A Nice Double Star in Virgo

The author explores the galaxies in the Virgo constellation, focusing on the double star STF 1904, discovered by Friedrich Struve in 1823. Comprising a subgiant primary and a main-sequence secondary star, they are 247 light years from Earth. Observations made in Seattle reveal their distinct separation and brightness.

Also known as: SAO 120822, HD 133408, HR 5610, HIP 73716, STF 1904