(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.
| || |