June 24, 2020: First ever Dumbbell

[michael.h.f.wilkinson]

Had a go with the APM 80mm F/6 triplet, with TS 1x flattener, Optolong L-eNhance filter, and ASI183MC. I gathered 1 h and 51 minutes worth of 120 and 60 s subs (had to discard a few due to poor tracking). I added 30 bias , 25 darks at each exposure, and 30 flats and dark flats. Stacked and (very slight) gradients removed in APP. The first version shows the automatic stretch by APP, the second my manual tweaking in Gimp.

 

It depends a bit on the monitor which I like best. Quite chuffed at how much detail can be captured despite the amount of background light so close to summer solstice

 

[vineyard]

I prefer the second - much more delicate.  Lovely.

[michael.h.f.wilkinson]

Slight reprocess of my Gimp version, adding a bit more red