The star in the centre, known as V1331 Cyg and located in the dark cloud LDN 981 — or, more commonly, Lynds 981 — had previously been defined as a T Tauri star. A T Tauri is a young star — or Young Stellar Object — that is starting to contract to become a main sequence star similar to the Sun.
With its twin solid rocket boosters and three main engines churning at seven million pounds of thrust, the Space Shuttle Atlantis thunders skyward from Launch Pad 39A. Liftoff of Mission STS-45 occurred at 8:13:40 a.m. EST, March 24, 1992. On board for the 46th Shuttle flight are a crew of seven and the Atmospheric Laboratory for Applications and Science-1 (ATLAS-1). The launch is the second in 1992 for the Shuttle program and Atlantis' 11th flight.