00:37:33 What do I think about GPT-3? It is very close to the north celestial pole, which is why it has been used as a navigational tool in the northern hemisphere for centuries. The nebula, also known as NGC 7000, takes its name from a supposed resemblance to the continent. Thursday, October 1 evening—Mercury at Greatest Eastern Elongation. Please refresh the page and try again. The second is in the end of Eridanus. It was translated as "Betelgeuse" by later astronomers. GoldiloKs researchers are pulling data from several telescopes to inform the research, including NASA's Hubble Space Telescope, NASA's Chandra X-ray Observatory and the European Space Agency's XMM-Newton satellite. Based on their spectral classifications, Alpha Centauri A is a main sequence white dwarf with roughly 110% of the mass and 151.9% the luminosity of our Sun. And if you have a news tip, correction or comment, let us know at: firstname.lastname@example.org. Together with Arcturus and Sirius, it is one of the most luminous stars in the Sun’s neighborhood. In 2012, astronomers discovered an Earth-sized planet around Alpha Centauri B. The closest star to the Sun, Proxima Centauri is marked with a red circle, close to the bright stars Alpha Centauri A and B. Arcturus (lower left) is seen in the constellation Bootes. For the next 60,000 years or so, astronomers expect that it will continue to approach our Solar System; at which point, it will begin to recede again. "If you are looking for planets with habitability, the abundance of K stars pump up your chances of finding life. There a few stars in double or multiple star systems that appear greenish, even though they are really blue or white. Nick Greene is a software engineer for the U.S. Navy Space and Naval Warfare Engineering Center. Background. Centauri C). The cluster has had several meanings for many different cultures here on Earth, which include representations in Biblical, ancient Greek, Asian, and traditional Native American folklore. Whereas it appears to be a single bright star to the naked eye, Sirius is actually a binary star system, consisting of a white main-sequence star named Sirius A, and a faint white dwarf companion named Sirius B. NY 10036. Receive mail from us on behalf of our trusted partners or sponsors? A K-type main-sequence star, also referred to as a K dwarf or orange dwarf, is a main-sequence (hydrogen-burning) star of spectral type K and luminosity class V. These stars are intermediate in size between red M-type main-sequence stars ("red dwarfs") and yellow G-type main-sequence stars.They have masses between 0.5 and 0.8 times the mass of the Sun and surface temperatures between 3,900 … In 1689, Jesuit priest and astronomer Jean Richaud confirmed the existence of a second star in the system.