TV Corvi

TV Corvi, also known as Tombaugh's Star, is a dwarf nova of the SU Ursae Majoris type in the constellation Corvus that was first discovered by accident as a mysterious 12th magnitude star on a plate by Clyde Tombaugh while looking for remote planets on May 25, 1932, before its identity was confirmed as a dwarf nova by David Levy in 1990.

Variable star observer David Levy found out about the object while researching and writing Tombaugh's biography in 1988.

He discovered a further nine outbursts after inspecting 260 photographic plates that spanned the next sixty years, and then set about watching the star.

[5] TV Corvi is unusual in that it lies far from the galactic plane, unlike most other cataclysmic variables.

[2] The system consists of a white dwarf and a donor companion which orbit around a common centre of gravity every 1.5096 hours (90.54 minutes).