Alpha Andromedae Jesse Russell

ISBN: 9785510559507

Published: September 15th 2012

Paperback

156 pages


Description

Alpha Andromedae  by  Jesse Russell

Alpha Andromedae by Jesse Russell
September 15th 2012 | Paperback | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 156 pages | ISBN: 9785510559507 | 7.74 Mb

High Quality Content by WIKIPEDIA articles! Alpha Andromedae (Alpha And, And, Andromedae), which has the traditional names Alpheratz (or Alpherat) and Sirrah (or Sirah), is the brightest star in the constellation of Andromeda. Located immediatelyMoreHigh Quality Content by WIKIPEDIA articles! Alpha Andromedae (Alpha And, And, Andromedae), which has the traditional names Alpheratz (or Alpherat) and Sirrah (or Sirah), is the brightest star in the constellation of Andromeda.

Located immediately northeast of the constellation of Pegasus, it is the northeastern star of the Great Square of Pegasus. As a connecting star to Pegasus, it is also known as Pegasi, though this name is no longer used (another such doubly named connecting star is Tauri).

It is located 97 light-years from Earth. Although it appears to the naked eye as a single star, with overall apparent visual magnitude +2.06, it is actually a binary system composed of two stars in close orbit. The chemical composition of the brighter of the two stars is unusual as it is a mercury-manganese star whose atmosphere contains abnormally high levels of mercury, manganese, and other elements, including gallium and xenon. It is the brightest mercury-manganese star known.



Enter the sum





Related Archive Books



Related Books


Comments

Comments for "Alpha Andromedae":


szlachcianka.pl

©2014-2015 | DMCA | Contact us