For those of you struggling to make it out in the natural LRGB version (it has an extremely low surface brightness) that I processed to respect the comparative dynamic range, I have added a less respectful enhanced/stretched version, to better reveal the
Malin Stellar Stream Interesting that it appears slightly square ended rather than a smooth curve and apart from it being even fainter, I needed just a little more space at the top left to make the entire orbiting stream (it encircles the entire galaxy!) more obvious, doh!
4.2m William Herschel telescope image attached (2 hr exposure in sub arc sec seeing at La Palma)
The maximum brightness at any point of this stream has been measured at 26.7mag/squ arc sec
Detailed paper on it
HERE
Mike