An intermediate NGC3628

This galaxy is the third member of the Leo triplet. During the last nights I could image this with the Esprit120mm and the ASI183MM Pro. This intermediate result is L-filter 6hr36m of data processed in APP and cropped. Best seen by clicking on the image!


NGC3628 ASI183mm Pro + Esprit 120mm + SW Flattener + No Reducer, No Filter

And below is the equivalent image taken with the Nikon D750 DSLR. I had a lot of noise in this 3hrs picture (36x300s), I suspect something went wrong with the dithering. The tidal stream is just visible.

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ASI290MM first guiding job

I guess the picture below says it all !! RMS values of 0.30″ and 0.26″. The mount was setup in the garden that same night, using PoleMaster to align (one 7-minute session). The PHD2 Guidelog mentions a pole error of 0,5′ I guess that is 30″. Not bad for spending 7 minutes on aligning. Works like a charm.

This is no doubt rather good guiding. I’m happy with this result: a good combination of the ASI290MM smaller pixels and the old Soligor “free” 400mm F 6.3 DSLR telelens (I got it as a gift from a neighbour who found it on a flee market).

Comet Wirtanen on December 10th

Comet Wirtanen 46/p on the evening of December 10th, 2018. Image with a 120mm Esprit refractor F5, Nikon D750 ISO800 11x120s

The comet was traced with CdC and PHD2. 

Very easily seen in 10×50 binoculars, and also naked eye visible with adverted vision. 
Another sequence of shots taken that same night. This time 30 times 60 seconds at 1600 ISO.  Stacked in DSS on the comet.