ESO 138 – IG 29,30.

eso138 ig29 JoeCauchi

ESO 138 – IG 29,30.

This is a ring galaxy in Ara that has had a smaller galaxy (1 o’clock position) ploughing through the larger galaxy in the distance past leaving a large dark hole after the encounter and a bridge of matter joining the two galaxies. These ring galaxies are very rare.

Telescope.  16 Inch F4.5 Newtonian.

Camera.  S Big ST 4000 XCM OSC CCD.

Exposure & Time.  12 x 900 sec.  Aug 2012.

Location.  (Wiruna) Ilford N.S.W.