R Aquarii

R Aquarii

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R Aquarii is an unusually curious looking star that has been undergoing violent eruptions of nuclear material with the latest probably occurring in the late 1970’s. The mechanism of eruptions is theorized to result from the interaction of a white dwarf with a nearby younger companion star. The evidence of the eruptions extends to around 2,500AU or 2,500 times the distance of the Earth form the Sun. The central star, SAO165849, glows at magnitude 8.7 and is easily visible even through small telescopes.  

Coordinates       :

23h 44' 33.8" -15d 12' 19.2"

Date Imaged       :

October 6, 2013

Lens       :

N16 f/5.2

Camera       :

D7000 iso6400

Exposure       :

45 x 1 minute

Mount       :

Losmandy Titan

Location       :

Stardust Observatory, Baguio