M77 (Cetus A, NGC 1068) in Cetus

M77 (Cetus A, NGC 1068) is the pro­to­type of pec­u­lar class of extragalactic objects known as Sey­fert galax­ies, hav­ing very act­ive nuc­lei and show­ing strong emis­sion lines sim­il­ar to quas­ars.
The galaxy is shin­ing at 8.9mag at a real dis­tance of about 50 mil­lion lightyears. The dia­met­er of the bright part is about 120’000 light years, while the faint exten­sions are going to nearly 170’000 lightyears, one of the biggest objects in Charles Messier’s catalog.

The galaxy in the upper left corner is NGC 1072 with a visu­al bright­ness of 13.4 mag.

[descrip­tion from O’Meara and SEDS]

Details

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RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
LRGB 440:140:160:140 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart M77 (Cetus A, NGC 1068) in Cetus

M77 Galaxy Sky Chart Astrophotography Martin Rusterholz

Image cre­ated by Skychart