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Contains:  M 101, NGC 5457
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Messier 101, 


            James Schrader
Messier 101
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Messier 101

Technical card

Imaging telescopes or lenses: Orion 8" f/3.9 Newtonian Astrograph

Imaging cameras: Atik 428ex Mono

Mounts: Orion Atlas EQ-G

Guiding cameras: QHY5L-II

Software: Sequence Generator Pro  ·  Pisinsight 1.8

Filters: Orion 1.25'' LRGB Filter Set

Accessory: Orion Thin Off Axis Guider (TOAG)  ·  Baader MPCC Coma Corrector

Dates:May 6, 2016May 7, 2016

Orion Extra Narrowband Filter Ha 1.25": 8x1200" -12C bin 2x2
Orion 1.25'' LRGB Filter Set: 120x480" -12C bin 2x2

Integration: 18.7 hours

Darks: ~12

Bias: ~200

Avg. Moon age: 14.99 days

Avg. Moon phase: 0.44%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 1069581

RA center: 14h 3' 9"

DEC center: +54° 21' 10"

Pixel scale: 1.163 arcsec/pixel

Orientation: -138.436 degrees

Field radius: 0.382 degrees

Resolution: 1902x1407

Locations: Home (Front Yard), Jefferson City, MO, United States



James Schrader
License: None (All rights reserved)


  • Final
    Messier 101, 


            James Schrader

Sky plot

Sky plot


Messier 101, 


            James Schrader