The Saturn Nebula (NGC 7009) is a small but fairly bright planetary nebula found in Aquarius constellation, about a degree west of the star Nu Aquarii. The nebula has an apparent magnitude of 8.0 and lies at an estimated distance between 2,000 and 4,000 light years from Earth. It was named the Saturn Nebula by … [Read more…]
The Great Square of Pegasus is an asterism formed by three bright stars in Pegasus constellation – Markab, Scheat and Algenib – and Alpheratz in the neighbouring constellation Andromeda. For northern observers, the asterism is particularly prominent in the summer months, when it can be seen high overhead in the evening.