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Open Cluster
NGC 1528


Object : NGC 1528
Coordinates/Direction : RA: 04h15m, DEC: +51o13'
Object size : -
Object magnitude : 6.4
More to know : Wikipedia:
https://en.wikipedia.org/ wiki/ NGC 1528

NGC 1528, 2024-10-18, crop

NGC 1528 open cluster, Nikon D800 Pentax 645 FA 300mm f/4 ED, 2024 (click on the image to get a full resolution photo in a new window)
Date : 2024-09-18
Time (UT) : 22:52 to 23:58
Mount : SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019)
Guide : ASI120 camera with off-axis
Lens/telescope : Pentax 645 FA 300 mm ED f/4 (medium format lens)
Corrector/Barlow : -
Field (FOV) : 6.8x4.5o (full frame) before crop
camera : Nikon D800, QE=0.56, full frame, 36 Mpixel, 14 bit
camera temperature: - , no temperature sensor
Film/CCD : Raw, NEF
Filter : none
Control system: Mount, camera, focus, guide (Ekos) controlled by KStars/Ekos Linux, 64-bit
Exp. time : 59x60 seconds, 400iso, dithered every third image
Image process tool : Siril, Gimp, Irfanview
Processing : flat, photo metric color calibration
Weather : Full Moon, temperature +14 C
Site : Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o
Comment : Compare this photo with a Nikon D800 with the one below taken with a Canon 6D. Looks like the Canon is much better, on the Nikon photo there is no stars in the background, the famous star eater, or ? I don't think so because it's only this photo that show this. If I increase the contrast there are a lot of hot pixels. Just one of many photos I take yo compare with other equipment. Note: Nikon is set to 400iso, Canon set to 1600iso.

NGC 1528, 2023-10-15, crop

NGC 1528 open cluster, 2023 (click on the image to get a full resolution photo in a new window)
Date : 2023-10-15
Time (UT) : 21:23 to 22:49
Mount : SkyWatcher EQ6 Pro, beltdrive modified (DIY 2019)
Guide : QHY5 camera with 200 mm f/3.5 lens
Lens/telescope : Pentax 645 300 mm ED f/4 (medium format lens)
Corrector/Barlow : -
Field (FOV) : 6.8x4.5o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 6o C above surrounding temperature
Film/CCD : Raw, Cr2
Filter : none
Control system: Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux)
Exp. time : 60x60 seconds, iso1600, dithered every third image
Image process tool : Siril, Gimp, Irfanview
Processing : calibration bias, flat, image color
Weather : clear
Site : Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o
Comment : A beautiful open star cluster that easily can be seen through a binocular.
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