WR 124

WR 124 is a Wolf–Rayet star in the constellation of Sagitta surrounded by a ring nebula of expelled material known as M1-67.

[10] It is listed in the General Catalogue of Variable Stars as QR Sagittae with a range of 0.08 magnitudes.

[5] NASA's James Webb Space Telescope has captured detailed infrared images of WR 124,[11] revealing significant dust production and offering new insights[12] into the life cycles of massive stars and their contributions to the cosmic dust budget.

A 2010 study of WR 124 directly measured the expansion rate of the M1-67 nebula expelled from the star using Hubble Space Telescope camera images taken 11 years apart, and compared that to the expansion velocity measured by the Doppler shift of the nebular emission lines.

[9] WR 124 is surrounded by an intensely hot nebula formed from the star's extreme stellar wind.

A visual band light curve for QR Sagittae, adapted from Weiss et al. (2014). [ 14 ] The blue points show the magnitude of QR Sagittae, and the black points show the magnitude of a stable comparison star in the same field of view.
Hubble Space Telescope image of the nebula M1-67 and WR 124 at its center.