Hemisphere:  Northern  ·  Contains:  IC 4263  ·  IC4263  ·  IC4278  ·  M 51  ·  M51  ·  NGC 5169  ·  NGC 5194  ·  NGC 5195  ·  NGC5169  ·  NGC5195  ·  Whirlpool galaxy
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M51 LRGB, 


            John Massey
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Imaging telescopes or lenses: Stellarvue SV80S

Imaging cameras: Atik 383L+ Mono

Mounts: Losmandy G11 Gemini Losmandy GEM

Guiding telescopes or lenses: Orion Deluxe Mini 50mm Guide Scope with Helical Focuser

Guiding cameras: Orion StarShoot AutoGuider Pro Mono

Focal reducers: TeleVue 0.8x Photo Reducer/Flattener TRF-2008

Software: Sequence Generator Pro  ·  PixInsight 1.8  ·  Stark Labs PHD 2.6.5

Filters: Baader Blue 36 mm  ·  Baader Luminance 36 mm  ·  Baader Green Filter 36mm  ·  Baader Red 36 mm

Accessory: ATIK EFW2, 7x36mm

Dates:May 23, 2019May 24, 2019

Baader Blue 36 mm: 8x300" -10C bin 1x1
Baader Green Filter 36mm: 7x300" -10C bin 1x1
Baader Luminance 36 mm: 8x300" -10C bin 1x1
Baader Red 36 mm: 7x300" -10C bin 1x1

Integration: 2.5 hours

Avg. Moon age: 19.73 days

Avg. Moon phase: 74.45%

Bortle Dark-Sky Scale: 7.00

Astrometry.net job: 2710471

RA center: 13h 30' 25"

DEC center: +47° 16' 27"

Pixel scale: 4.878 arcsec/pixel

Orientation: -15.112 degrees

Field radius: 0.846 degrees

Resolution: 1000x748

Data source: Backyard


I will be adding Ha data at a later date.



John Massey
License: None (All rights reserved)

Sky plot

Sky plot


M51 LRGB, 


            John Massey