Algol, Beta Persei, is a bright multiple star located in Perseus. It is the second brightest star in the constellation, after Mirfak, Alpha Persei. The star is also known as Gorgona, Gorgonea Prima, Demon Star and El Ghoul. It lies at an approximate distance of 90 light years from Earth and has an apparent magnitude … [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.
Here are some of the highlights of the night sky in October: 7:30 PM southwestern sky – Mars and Saturn low above the horizon 3:30 AM eastern sky – Jupiter dominates the sky in the morning hours 4 AM eastern sky – Jupiter and the crescent Moon in conjunction on October 17 6:45 AM eastern … [Read more…]
The Southern Pinwheel Galaxy, also known as Messier 83 (M83), is a barred spiral galaxy located in Hydra constellation. M83 lies at a distance of 15 million light years from Earth. It is one of the nearest and brightest spiral galaxies, and can even be seen in binoculars. The galaxy appears face-on when viewed from Earth. … [Read more…]
The Antennae Galaxies, also known as the Ringtail Galaxy or Arp 244, are a pair of colliding galaxies located in Corvus constellation. The interacting spiral galaxies have the designations NGC 4038 and NGC 4039 in the New General Catalogue. The galaxy collision resembles an insect’s antennae, which is how the pair got the name. The … [Read more…]