Corona Borealis
Corona Borealis is a small constellation in the Northern Celestial Hemisphere. Its Latin name, inspired by its shape, means “northern crown” The brightest star is the magnitude 2. 2 Alpha Coronae Borealis. Five star systems have been found to have Jupiter-sized exoplanets.
About Corona Borealis in brief
Corona Borealis is a small constellation in the Northern Celestial Hemisphere. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy. Its Latin name, inspired by its shape, means “northern crown” The brightest star is the magnitude 2. 2 Alpha Coronae Borealis. The seven stars that make up the constellation’s distinctive crown-shaped pattern are all 4th-magnitude stars. Five star systems have been found to have Jupiter-sized exoplanets. It has a counterpart—Corona Australis—in the Southern Celestial Hemisphere, which is visible north of 50°S. The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of eight segments. The right ascension coordinates of these borders lie between 15h 16. 0m and 16h 25. 1m, while the declination coordinates are between 39. 71° and 25. 54°. Covering 179 square degrees and hence 0. 433% of the sky, Corona Borealis ranks 73rd of the 88 modern constellation by area. Its position in theNorthern Celestial Hemisphere means that the whole constellation is visible to observers north of50°S, and is bordered by Boötes to the north and west, Serpens Caput to the south, and Hercules to the east. The other six stars are Theta, Beta, Gamma, Delta, Epsilon and Iota CoronAE Borealis, with Pi and Rho Coronai Borealis adding to the asterism.
Abell 2065 is a highly concentrated galaxy cluster one billion light-years from the Solar System containing more than 400 members. The constellation is believed to be a member of the Ursa Major Group of Moving Group of Major St James’ Galaxies, which includes the Milky Way, the Sun, the Earth, and the planets Mercury, Venus, Mars, Jupiter, Saturn, Mars and Venus. It also has a twin star system, Zeta1 and Zeta2, classed by John Flamsteed as a single star, alongside the designations Nu1 and Nu2 in his 1603 star atlas Uranometria. In fact, it is an Algol-type eclipsing binary that varies by 0.1 magnitudes with a period of 4.5 days. The primary star is a white main-sequence star of spectral type A0 that is 2 91 times the mass of the Sun. The secondary companion is a yellow-white star with a radius around 60 astronomical units out to a radius of around 60±3 light-years. Located 112±3-years away, Beta Coron Ae Borealis or Nakan is a spectroscopic binary system separated by 10AU by each other by 10 AU and separated by a common motion through space through space. The star system is a little-studied binary system that is separated by each orbit of 10AU and 10 AU.
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This page is based on the article Corona Borealis published in Wikipedia (as of Nov. 11, 2020) and was automatically summarized using artificial intelligence.
