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, as the three brightest stars – Sirius in Canis Major, Canopus in Carina, and Alpha Centauri in Centaurus – lie south … [Read more…]
Capella, Alpha Aurigae, is the brightest star in Auriga constellation 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, and the only other brighter star visible from northern latitudes is Sirius in the southern constellation Canis Major. … [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. Betelgeuse 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. The … [Read more…]
Alpha Centauri is the nearest star system to the Sun, located at a distance of 4.37 light years or 1.34 parsecs from Earth. It is the brightest star in Centaurus constellation and the third brightest star in sky, only slightly brighter than Arcturus in Boötes constellation and Vega in Lyra. Alpha Centauri is also known … [Read more…]
Proxima Centauri, or Alpha Centauri C, is the closest star to Earth. It is located in the constellation Centaurus, at a distance of 4.243 light years from Earth. The name Proxima means “next to” or “nearest to” in Latin. Proxima’s distance to the second and third closest stars to the Sun, Alpha Centauri A and … [Read more…]
Sirius, also known as the Dog Star or α Canis Majoris (Alpha Canis Majoris), is the brightest star in the night sky. It lies at a distance of 8.60 light years (2.64 parsecs) from Earth, in the constellation Canis Major, the Greater Dog. Sirius is not the brightest star because it is more luminous than … [Read more…]
Vega, Alpha Lyrae, is the brightest star in Lyra constellation and the fifth brightest star in the sky, after Sirius in Canis Major, Canopus in Carina, Alpha Centauri in Centaurus, and Arcturus in Boötes constellation. It is the second brightest star in the northern celestial hemisphere, with only Arcturus appearing brighter.