Sh 2-266 is a peculiar object consisting of a cometary nebula surrounding the Be class supergiant MWC 137
, which may be generating a strong stellar wind and appears to be surrounded by a small star cluster. It appears to be located in the Cygnus (outer) arm.
The central star, MWC 137, may be a class Be supergiant and Sh 2-266 may be a ring nebula surrounding it. [1
The shell surrounding the star can be explained if the star is generating a strong stellar wind. [2
A peculiar cometary nebula associated with MWC 137 and a small star cluster. [3
1. ^ Esteban, Cesar & Fernandez, Matilde (1998). "S266: a ring nebula around a
Galactic B[e] supergiant?", Monthly Notices of the Royal Astronomical
Society, Vol. 298, 185-192. [1998MNRAS.298..185E]
2. ^ Fich, M. (1987). "S266: An Extreme Example of a Strong Stellar Wind in a
HII Region?", Bulletin of the American Astronomical Society, Vol. 19, 717.
3. ^ Henning, Th., Burkert, A., Launhardt, R., et al. (1998). "Infrared imaging
and millimetre continuum mapping of Herbig Ae/Be and FU Orionis stars",
Astronomy and Astrophysics, Vol. 336, 565-586. [1998A&A...336..565H]