NGC 4666


NGC 4666 is a spiral galaxy in the constellation Virgo. It is noteworthy for its vigorous star formation, which creates an unusual “superwind” of out-flowing gas. This wind is not visible at optical wavelengths, but is prominent in X-rays, and has been observed by the ESA XMM-Newton space telescope.
A Type Ia Supernova was detected in NGC 4666 on 9 December 2014. ASASSN-14lp is located 12 arcseconds from the center of NGC 4666.
A type Ib Supernova was detected on 27 December 2019. SN 2019yvr has a 0.005 redshift.