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Contains:  NGC 5474, M 101, NGC 5457, NGC 5422, The star 86UMa
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Messier 101 Pinwheel Galaxy, 


            Sol Lee
Messier 101 Pinwheel Galaxy

Messier 101 Pinwheel Galaxy

Technical card

Imaging telescope or lens:Pentax Super Takumar 200mm f/4

Imaging camera:FUJIFILM X-T3

Mount:iOptron SkyGuider Pro

Guiding camera:ZWO ASI120MM Mini


Accessory:ZWO ASIAIR

Resolution: 2107x1332

Dates:May 28, 2019

Frames: 10x240"

Integration: 0.7 hours

Avg. Moon age: 23.77 days

Avg. Moon phase: 33.08% job: 2791184

RA center: 210.713 degrees

DEC center: 54.360 degrees

Pixel scale: 7.745 arcsec/pixel

Orientation: 271.873 degrees

Field radius: 2.681 degrees

Locations: Malloesan Eco Park, Jincheon, Chungcheongbuk-do, Korea, Republic of

Data source: Traveller


Total 40min exposure (240sec x 10) @ISO 800, stacked using Sequator (no flat, no bias, no dark)

Lens: Super Takumar 200mm @f5.6

Camera: Fuji X-T3

Mount: iOptron SkyGuider Pro with ST-4 guide through ASIAIR

Post-processed with StarTools.

Steps: Bin - Crop - Auto-Stretch - Wipe - Manual-Stretch - Decon - Sharp - Filter(to remove CA) - Color - Track off



Sol Lee
License: None (All rights reserved)

Sky plot

Sky plot


Messier 101 Pinwheel Galaxy, 


            Sol Lee