Betelgeuse. Betelgeuse (/. Distinctly reddish, it is a semiregular variable star whose apparent magnitude varies between 0.
Betelgeuse is one of three stars which make up the Winter Triangle and marks the center of the Winter Hexagon. The star's name is thought to be derived from the Arabic . Orion, with mistransliteration into medieval Latin leading to the first character y being misread as a b. The star is classified as a red supergiant of spectral type M2. Iab and is one of the largest and most luminous known stars. If it were at the center of the Solar System its surface would extend past the asteroid belt, possibly to the orbit of Jupiter and beyond, wholly engulfing Mercury, Venus, Earth and Mars. Astronomical Perspective of the Constellations From a purely scientific astronomical perspective of the constellations, there are no constellations – at least not. Stuur een bericht aan deze pagina, kom meer te weten over geplande evenementen en meer. What rhymes with betelgeuse? Lookup it up at Rhymes.net - the most comprehensive rhyming words dictionary on the web! Betelgeuse Recordings. Estimates of its mass are poorly constrained, but have recently ranged from 5 to 3. Sun. Its distance was estimated in 2. Earth, yielding a mean absolute magnitude of about . Less than 1. 0 million years old, Betelgeuse has evolved rapidly due to its high mass. Having been ejected from its birthplace in the Orion OB1 Association. Currently in a late stage of stellar evolution, the supergiant is expected to proceed through its life cycle before exploding as a type II supernova within the next million years. Betelgeuse was the first star (after the Sun) to have its photosphere measured in 1. Since then, researchers have used telescopes with different technical parameters to measure the stellar giant, often with conflicting results. Studies since 1. 99. Due to limb darkening, variability, and angular diameters that vary with wavelength, many of the star's properties are not yet known with any certainty. Adding to the computational challenges, the surface of Betelgeuse is obscured by a complex, asymmetric envelope roughly 2. Possible stellar companions orbiting within this circumstellar nebula may also contribute to the star's enigmatic behavior. I., Sugawara, Y., Tuda, M., & Takagi, M.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2016
Categories |