Testing the Sharpstar 76EDPH with the ASI183MM

It has been cloudy for the last months, this February New Moon was totally clouded out! With exception of lastThursday, February 20th: after an active rain zone passed through – with heavy wind and hail – the night sky cleared out.

After midnight till 4 am a clearance allowed me to test the setup. The test subject was the dwarf galaxy Leo 1 next to the bright Regulus.

Regulus en Leo1 3x5x120s RGB ASI183MM Sharpstar76 G111

This image was a quick test. Not only for the optics/camera combination, but also for the automation. SGP was used to automate, autofocus, and Solve& Sync. Where before I could not match the Solve coördinates from SGP back into Cartes du Ciel, this time it worked. The secret was to run both applications as an administrator. So both will connect to the EQMOD hub. Syncing in CdC (Manually) will update the EQMOD coördinates, hence also the SGP co*ordinates. And it works in both directions: Solve & Sync in SGP will update CdC. This is great!

I still had Luminance images also, but I did not add these: it were fuzzy frames and some reflections appeared. I suspect this Luminance filter is not ok.

Little Eagle LDN777 in Taurus

It’s a challenge to image dark nebulae in light-polluted Flanders. So let’s try it!

This is the “little eagle” nebula, which I captured a few years ago as a tiny spot on a wide-field Plejades @180mm. Now the framing only features the Eagle head ; imaging with the Esprit and the ASI183mm.

LBN777 Taurus December 2019 29x300S L 10x300sRGB ASI183MM Esprit120 F5 SQM 20.30

It’s a bit dark – but what did you expect from a Dark Nebula? This is 10x300seconds on R, G and B channels and then 29x300s on Luminance. No Light Pollution filter used.

M45 Nikon 180mm ED F5.6 D750 6u 400ISO SQM2015 Meldert Oct2018 NoFilter 66% JPG

This is the overview, with on the right the Pleiades, and on the center left the Eagle Head (upside down).

M27 Continued

I’m not sure what to think of this image. There’s a fair amount of detail, also the outer regions are visible. It’s fake colors anyway so I tried to balance colers for an esthetic appearance combined with a maximum of detail. The thing is, when you look at the individual B/W images, they seem far better in terms of quality, smoothness, noise and detail. It’s when combing them into color that they suddenly require maximal processing to get something out of it. 

Skies were not very good, lot’s of high altitude clouds and contrails. The data has been gathered over maybe 6 or 7 nights for the past weeks.

I have RED and GREEN filtered data still that I did not use in this combination. The total integration time is over 18 hours. I guess lots of rain and clouds should come over to get me reprocessing again? I’m not sure what to think of this image. There’s a fair amount of detail, also the outer regions are visible. It’s fake colors anyway so I tried to balance colers for an esthetic appearance combined with a maximum of detail. The thing is, when you look at the individual B/W images, they seem far better in terms of quality, smoothness, noise and detail. It’s when combing them into color that they suddenly require maximal processing to get something out of it.