Location / Date

Zellerndorf, 07. March 2011

Telescope / Mount / Guiding

10" f4,7 Skywatcher Newtonian, Skywatcher NEQ6, Baader MPCC, Lacerta OAG + Mgen

Camera / Exposure

Canon EOS 1000Da, 80 x 5min ISO 800 (total 6h 40min)

Processing

Theli, Fitswork, Photoshop

Notes

NGC 4725 is an intermediate barred spiral galaxy about 40 million light-years away in the constellation Coma Berenices. NGC 4725 is a Seyfert Galaxy, suggesting an active galactic nucleus containing a supermassive black hole.

NGC 4747 shows large Tidal Streams, probably caused by interaction with NGC 4725

Published in "Interstellarum" Nr. 81 (April/May 2012)