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Star trails


Object : Stars wide fields
Coordinates/Direction : RA: -, DEC: -
Object size :  -  
Object magnitude : -
More to know : Star trails, Wikipedia:
https://en.wikipedia.org/ wiki/ Star_trail

Star trail: Moonrise at Tyresta 2026

Star trails, Moonrise at Tyresta, 20260203, Sweden (Click on the image to get one in full resolution in a new window)
Date : 2026-02-03
Time (UT) : -
Mount : Tripod
Lens/telescope : Tokina AF 20-35 mm f/3.5-4.5(set to fully open)
Corrector/Barlow : -
Field (FOV) : 84x61o (20 mm, full frame)
Field (FOV) : 54x37o (35 mm, full frame)
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 non, Camera by Intervalometer
Exp. time : 1017x10 seconds, iso1600, WB 4000K
Image process tool : StarStax, IrfanView
Processing : Blending
Weather : Mostly clear sky, Moon Phase 87%, Temperature -8o C
Site : Sweden, Stockholm, Tyresta Nature reservation, Spirudden. Bortle 4
Comment : After more than one months of cloudy skies we got an evening with a clear sky in the beginning of February. My friend called me and asked me if I want to follow him out to a dark place South of Stockholm, of course I wanted that. This night it was -12o C when we started, later it rised to -8o C. The equipment worked well, I have tested it at -15o C. I got almost three hours, that is 1/8 of a full revolution. The bright white blob lower left is the Moon rising. The weak white lines are satellites and the red dotted line is an aero plane, it's easier to see if you look at the full resolution image. The difuse green blobs are reflections in the optic from the Moon.

An alternative how to use the images: Time lapse video.

Star trails: Moonrise at Tyresta, 2026

Star trails, Moonrise at Tyresta, 20260203, Sweden (Click on the image to get one in full resolution in a new window)
Date : 2026-02-03
Exp. time : 1x10 seconds, iso1600, WB 4000K
Comment : A single image, the bright object behind the trees is the Moon. On the left side above th trees you can see the constellation Big Bear.
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