 Yellow hypergiants are in an extremely active phase of their evolution.The star was discovered and catalogued as emission line star Hen 3-1379 in 1976, and classified as a proto-planetary nebula in 2003 after the 2.2 micron infrared sky survey.In 1989, it was analysed as a post-AGB star and assumed to have a luminosity of and a distance around 1,000 pc.