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Open Cluster
Messier 52


M52 2016 (click on the image to get a full resolution photo i a new window)
Coordinates/Direction : RA: 23h24m, DEC: +61o35'
Object size : 13'
Object magnitude : 5.0
Object : M52
Date : 2016-03-17
Time (UT) : 01:20 to 01:51
Mount : EQ6 controlled by EQMOD
Guide : PHD2 in dithering mode and QHY5 camera off-axis
Lens/telescope : TS130, 910mm f7 (682mm, f5.3)
Corrector/Barlow : Riccardi flat field corrector 2.5" x0.75
Filter : none
camera : Canon 6D, controlled by APT
Film/CCD : Raw
Exp. time : 22x60 seconds, iso800
Image process tool : DSS, Fitswork, Irfanview
Processing : crop, level, no cal dark&bias, only dithering
Weather : clear
Site : Sweden, Stockholm
Comment : This was the last photo this night, I got 22 images before the sky was too bright. As most open cluster also this one is very beautiful.
More to know : Wikipedia:
https://en.wikipedia.org/wiki/Messier_52

Zoom in 1, NGC 7635

NGC 7635 Bubble Nebula
Coordinates/Direction : RA: 23h20m, DEC: +61o12'
Object size :
Object magnitude : 10
Object : NGC 7635 Bubble Nebula
Date : 2016-03-17
Comment : This is a strong zoom in of the Bubble Nebula. Nebulas are very hard for me to catch because of the light pollution so I'm very pleased to get this. You find this nebula in direction four a clock about one third of the distance from center in the main image, look at the full resolution image.
More to know : Wikipidea:
https://en.wikipedia.org/wiki/NGC_7635

Zoom in 2, NGC 7538

NGC 7538
Coordinates/Direction : RA: 23h13m, DEC: +61o28'
Object size : 9' x 6' 
Object magnitude :
Object : NGC 7538 
Date : 2016-03-17
Comment : Also this is a strong zoom in of a weak nebula. The strange color of the stronger stars comes from the fact that they are oversaturated. You find this nebula in direction three a clock close to the right edge in the main image.
More to know : Wikipidea:
https://en.wikipedia.org/wiki/NGC_7538

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