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Contains:  NGC 3718, NGC 3729
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NGC 3718

Technical card

Imaging telescopes or lenses:Celestron Edge 11HD

Imaging cameras:Zwo Asi 6200 mm pro

Mounts:Skywatcher EQ-6R pro

Guiding telescopes or lenses:Williams Optics Megrez90

Guiding cameras:zwo ASI 120mc

Focal reducers:Celestron .7x Focal Reducer, for 11 HD

Software:PixInsightAdobe PS CS2Deepsky stacker

Filters:Baader Filterset 2"



Basic astrometry details

Astrometry.net job: 3503770

RA center: 11h 33' 6"

DEC center: +53° 4' 33"

Pixel scale: 0.396 arcsec/pixel

Orientation: 345.136 degrees

Field radius: 0.305 degrees


Resolution: 4231x3583

Locations: Backyard, Eschborn, Hessen, Germany

Data source: Backyard

Description

This one was a hard nut to crack. I wanted to see the fainter spiral arms on the pic. Not so easy under my nightsky light pollution. But in the last weeks we had some very clear nights and I waited to capture the luminance images until this part reaches the most dark region in my sky in the northwest short before dawn. This I did over 4 nights. For color I used bin 2x2 which I exposed always before the luminance shots. Than of course a lot of processing work to get out the fainter parts. The CLS/CCD filter helps for contrast, but I think I am loosing so fainter stars with it. With the UV/IR filter the backround gets to bright. Red and blue was quite ok but green is always difficult under my conditions. I think, I can not achieve more deepness with more integration time any more.....hope you like it like it is.
CS to you all

I put this image from the staging into the public area and can not set any technical data. Maybe a bug??
Edge 11 HD
ASI 6200 mm pro
Celestron reducer .7 for Edge 11 HD
ASI 120 mc for guiding
Williams Megrez 90 for guiding
Baader filters 2"
CLS / CCD Filter
L 95x300sec gain 300 bin 1
RGB all 30x350sec gain 350 bin2

Comments

Author

Christophorus
Christoph Lichtblau
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NGC 3718, 



    
        

            Christoph Lichtblau

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