Orion variable star

Orion variable star [¹] is the variable star indicating the change of the intensity of light that) is irregular (result to ask for that Orion does not pass through, Orion variable^[1]) (nebula type variable star ^[1](nebular variable^[1]), and is explosive. With a thin nebula, it will be usually thought that it is the normal main sequence star which does not change of the intensity of light and the young fixed star where it is in the future. The change of the brightness extends to the number class.

It is a variable star of classification IN including the Taurus Model T star and Orion FU type star to be included in Orion variable star [¹]. In addition, it is thought that probably the variable star of classification UVN contains it among flare stars [¹]. Most of Orion variable stars are classified in IN [¹].

The Taurus Model T star is Orion variable star having a characteristic fluorescence purple line spectrum and a line spectrum of lithium which is usually destroyed by nuclear fusion coming from single ionization iron in a spectrum.

The Orion FU type stars rise the sixth class from 5, and up to one class becomes dark, and the state continues for several decades. A prototypic star is an Orion FU star, and there are other Cygnus V1057 stars and Cygnus V1515 stars.

In addition, there are the things having a thing showing a periodic small change of up to one class degree and a thing darkening suddenly, a spectrum indicating the accretion of the mass to the fixed star. The plural number of these characteristics may be seen in one Orion variable star.

Source

1. ^ ^{a b c d e f g} "Oxford astronomy dictionary" Asakura Bookstore, first edition first impression, 72, page 219. ISBN 4-254-15017-2。

• Samus N.N., Durlevich O.V., et al. Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.)

Outside link

• GCVS Variability Types

It is acquired by "https://ja.wikipedia.org/w/index.php?title= Orion variable star &oldid=56777715"

This article is taken from the Japanese Wikipedia Orion variable star

This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.

Wikipedia and Tranpedia does not guarantee the accuracy of this document. See our disclaimer for more information.

In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.