IRAS was launched in January 1982 and overlooked about 97 percent of the sky. It is also known as IRAS 17150-3224. It is a good example of a DUPLEX-type protoplanetary nebula.
IRAS was launched in January 1982 and surveyed nearly all of the sky's surface area. This satellite also bears the designation IRAS 17150-3224. Its structure is comparable to that of a DUPLEX-type protoplanetary nebula.