The Winter Hexagon, also known as the Winter Circle, is a prominent winter asterism formed by seven stars prominent in the winter sky. These are Rigel in Orion, Aldebaran in Taurus, Capella in Auriga, Castor and Pollux in Gemini, Procyon in Canis Minor, and Sirius in Canis Major constellation. Sirius and Procyon are also part … [Read more…]
The Winter Triangle, or the Great Southern Triangle, is an asterism formed by three bright stars in prominent winter constellations. These stars are Betelgeuse in Orion, Procyon in Canis Minor and Sirius in Canis Major constellation. The Winter Triangle is prominent in the night sky in the northern hemisphere during the winter months, from December … [Read more…]
Thor’s Helmet is an emission nebula located in the southern constellation Canis Major. Its designation in the New General Catalogue is NGC 2359. The nebula is 30 light years in size and lies at a distance of 11,960 light years from Earth. It was named Thor’s Helmet because its bubble shape and filaments resemble the … [Read more…]
Arcturus, Alpha Boötis, is the brightest star in Boötes constellation and the fourth brightest star in the sky. With an apparent magnitude of -0.04, Arcturus is the brightest star in the northern celestial hemisphere. (The three brightest stars – Sirius in Canis Major, Canopus in Carina, and Alpha Centauri in Centaurus – lie south of … [Read more…]
Capella, also known as Alpha Aurigae or the Goat Star, is the brightest star in Auriga and the sixth brightest star in the sky. The only stars in the northern celestial hemisphere brighter than Capella are Arcturus in Boötes constellation and Vega in Lyra. The only other star visible from northern latitudes that is brighter … [Read more…]
Betelgeuse, Alpha Orionis, is the second brightest star in Orion constellation and the ninth brightest star in the sky. It is a supergiant star, distinctly red in colour, located at an approximate distance of 643 light years from Earth. It is an evolved star, one expected to explode as a supernova in a relatively near … [Read more…]
The Large Magellanic Cloud (LMC) is a dwarf irregular galaxy located on the border between the constellations Dorado and Mensa. The galaxy is believed to be a satellite of the Milky Way and a member of the Local Group of galaxies, which includes about 30 galaxies that are loosely bound together by their gravitation.
Alpha Centauri is the nearest star system to the Sun, located at a distance of only 4.37 light years or 1.34 parsecs from Earth. Alpha Centauri is the brightest star in Centaurus constellation and the third brightest star in sky. It is only slightly brighter than Arcturus in Boötes constellation and Vega in Lyra. The … [Read more…]