coatesg Posted March 16, 2018 Share Posted March 16, 2018 I've so far grabbed 7h of exposure on M96 - concentrating on the L channel so far. Surpisingly, M96 doesn't seem to be imaged very much as far as I can see - at least in close up (the wide 95/96/105 combo is popular though!). It does have some lovely dust going on near the core. This winter/spring has been quite poor really for me so far - some clear skies would be much appreciated so I could try and get colour data to add to this: I think this would add a lot to the image as it'll give colour differential to the bright knots in the centre and outer regions of the galaxy - brightness-wise they are fairly similar, but may stand out better in RGB. The outer reaches are also quite faint and hard to pull out any more than this; though the transparency wasn't great the other night, I think I'd need darker skies and/or much more exposure to get more out of it (or a more sensitive camera than the KAI-2020). I have however, pushed my current distance record (though not particularly trying to go as far as I can yet...) - QSO SDSS J104619.26+115223.4 is clearly visible at mag 20.5 (r band) - this has a redshift of ~2.83 which puts it about 11.4 billion light years away. Simbad data: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=SDSS+J104619.26%2B115223.4&NbIdent=1. Also at the faint end (just!!) is the small dwarf Leo 15 (in the Leo/M96 group - http://simbad.u-strasbg.fr/simbad/sim-id?Ident=[FS90]+Leo+15&NbIdent=1) - this is diffuse and at Mag(B) ~19... Image details: 350mm Newt (1584mm fl), ST2000XM, 84x5min. (22/02/18 and 13-14/03/18) Reduction/Processing in PI. South is ~ up. Thanks for looking! Annotation with the quasar mentioned marked up along with Leo 15 (there's another couple of QSO at z= 2.40 (mag_r=21.1!) and z=2.43 for the interested reader who fancies finding them....): Link to comment Share on other sites More sharing options...
Ibbo! Posted March 16, 2018 Share Posted March 16, 2018 I have tried before and due to my unfriendly streetlamp it is difficult. Lovely rendition of this galaxy. Link to comment Share on other sites More sharing options...
wimvb Posted March 16, 2018 Share Posted March 16, 2018 That's going to be a great image in colour. The b/w version is already impressive. Thanks for sharing. Link to comment Share on other sites More sharing options...
coatesg Posted March 17, 2018 Author Share Posted March 17, 2018 Thanks both - here's hoping for a clear night or two to mop this one up :-/ Link to comment Share on other sites More sharing options...
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