Stargazer (aircraft)

Stargazer
Stargazer in Northrop Grumman livery, carrying the Pegasus XL for the TacRL-2 mission from Vandenberg (June 2021)
General information
TypeLockheed L-1011 TriStar
StatusIn service
Owners
Construction number193E-1067
Registration
  • C-FTNJ (1974–1992)
  • N140SC (1992–present)
History
First flightFebruary 22, 1974
In service1974–present

Stargazer is a Lockheed L-1011 TriStar built in 1974 and modified in 1994 by Orbital Sciences (now part of Northrop Grumman) to serve as the mother ship for the Pegasus, an air-launched orbital rocket. As of June 2021, it has conducted 39 Pegasus launches carrying nearly 100 satellites. It is the only airworthy L-1011 remaining in service as of 2026.

Although Stargazer has not supported a Pegasus launch since 2021, it has continued to fly regular missions for undisclosed customers, including missile and flight-test work.