Astrophysics (Index)About

WR 140

(HD 193793, V1687 Cyg)
(Wolf-Rayet star that produces much dust)

WR 140 is a Wolf-Rayet star that is the binary-star companion of an O-type star, the two forming a spectroscopic binary. The pair is of interest as a colliding-wind binary, a binary pair between which stellar winds collide producing shock, and creating substantial dust. Characteristics of the pair:

WR 140 specific characteristics:

The companion has spectral type O5.


(star,variable)
Further reading:
http://en.wikipedia.org/wiki/WR_140
http://en.wikipedia.org/wiki/Colliding-wind_binary
https://www.roe.ac.uk/~pmw/Wr140int.htm
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~01.72kpc5.61klyWR 140
Coordinates:WR 140
J202027.97608+435116.2802

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