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Contains:  M 101, NGC 5422, NGC 5457, NGC 5473, NGC 5474, NGC 5485
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M101 - Wide Field, 


            Robert Eder
M101 - Wide Field
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M101 - Wide Field

Technical card

Dates:March 15, 2020

Frames: 47x120" ISO1600

Integration: 1.6 hours

Darks: ~30

Flats: ~40

Bias: ~100

Avg. Moon age: 21.22 days

Avg. Moon phase: 59.84%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 3331842

RA center: 14h 3' 18"

DEC center: +54° 21' 25"

Pixel scale: 2.706 arcsec/pixel

Orientation: 90.907 degrees

Field radius: 1.162 degrees

Resolution: 2500x1818

Locations: Hohe Wand, Wildgehege, Austria

Data source: Traveller


My first night in over two months and the wind was blowing like crazy. The plan was to image NGC5033, but it made no sense to set up the big 8" newton. So I used the little 5" to observe and the Omegon MiniTrack LX3 to image the Rosette region with the 85mm.

While I made a few tests with the LX3, I let the baby newton run on M101, unguided and with manual polar alignment only. I used my car as a windbreak as much as possible and was really surprised how well that turned out. Another kind of lucky imaging😄



Robert Eder
License: None (All rights reserved)

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M101 - Wide Field, 


            Robert Eder