IC 3418 [SEP] constellation
IC 3418
IC 3418 is a galaxy that is most well noted for its tidal tail, which formed after the galaxy collided with the Virgo Cluster some 54 million light years from Earth. The galaxy is home to many starburst regions.
The galaxy is thought to be evolving from a dwarf irregular galaxy into a dwarf elliptical galaxy, as the ram pressure of the intracluster medium of the Virgo Cluster through which it is plowing through strips gas from the galaxy, leaving it gas poor, while concentrating the gas in the tidal
SDSS J1229+1122
SDSS J1229+1122 (SDSS J122952.66+112227.8) is a blue supergiant O-type star in the tail of dwarf irregular galaxy IC 3418. It illuminates a nebula clump of gas, and was discovered from the spectrum of the illumination source. The clump of gas resides in a tail caused by ram pressure stripping of gas from the galaxy by the galaxy cluster. It was determined to be a blue supergiant through analysis of its spectrum. Until the discovery of the doubly gravitationally lensed MACS J1149 Lensed