Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 94  ·  NGC 4736
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M94 Spiral Galaxy • First Light with the ES165CF, 



    
        

            Douglas J Struble
M94 Spiral Galaxy • First Light with the ES165CF
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M94 Spiral Galaxy • First Light with the ES165CF

Getting plate-solving status, please wait...
M94 Spiral Galaxy • First Light with the ES165CF, 



    
        

            Douglas J Struble
M94 Spiral Galaxy • First Light with the ES165CF
Powered byPixInsight

M94 Spiral Galaxy • First Light with the ES165CF

Technical card

Imaging telescopes or lenses: Explore Scientific ED165CF FPL-53

Imaging cameras: ZWO ASI1600MM-PRO

Mounts: Astro-Physics Mach 1 GTO

Guiding telescopes or lenses: Orion 80mm Short Tube

Guiding cameras: Starlight Xpress Lodestar x2

Software: PHD2  ·  PixInsight  ·  Photoshop CS5  ·  SkySafari Pro

Filters: Astronomik Deep-Sky B  ·  Astronomik Deep-Sky G  ·  Astronomik Deep-Sky R  ·  Astrodon Lum Tru-Balance E-Series Gen 2  ·  Astronomik Luminance (UV/IR Cut) L-1  ·  Astrodon Green Tru-Balance E-Series Gen 2  ·  Astrodon Blue Tru-Balance E-Series Gen 2  ·  Astrodon Red Tru-Balance E-Series Gen 2

Accessory: ZWO 8x 1.25" Filter Wheel (EFW)  ·  QHYCCD PoleMaster  ·  Hotech 2" SCA Self-Centering Field Flattener  ·  MoonLite CFL 2.5" Large Format Focuser


Dates:April 26, 2020May 12, 2020May 13, 2020May 15, 2020May 20, 2020May 24, 2020May 25, 2020May 26, 2020May 27, 2020

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 95x60" (1h 35') (gain: 0.00) -20C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 120x60" (2h) (gain: 0.00) -20C bin 1x1
Astrodon Lum Tru-Balance E-Series Gen 2: 103x60" (1h 43') (gain: 0.00) -20C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 83x60" (1h 23') (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky B: 45x60" (45') (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky G: 41x60" (41') (gain: 0.00) -20C bin 1x1
Astronomik Deep-Sky R: 57x60" (57') (gain: 0.00) -20C bin 1x1
Astronomik Luminance (UV/IR Cut) L-1: 828x60" (13h 48') (gain: 0.00) -20C bin 1x1

Integration: 22h 52'

Darks: 50

Flats: 50

Bias: 250

Avg. Moon age: 11.94 days

Avg. Moon phase: 26.14%

Bortle Dark-Sky Scale: 8.00


Basic astrometry details

Astrometry.net job: 3570733

RA center: 12h 50' 53"

DEC center: +41° 7' 8"

Pixel scale: 0.649 arcsec/pixel

Orientation: 93.761 degrees

Field radius: 0.329 degrees


Resolution: 2929x2187

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard

Description

This is my first light with my new Explore Scientific 165 CF. I still have a few kinks to work out. I am still getting a FWHM issue producing magenta stars like I did with my ES 152 that I had to fix, but it may be my field flattener. It took me forever to finish this do to the rain we get here in Michigan with the Spring.

Messier 94 (M94), also known as Cat’s Eye Galaxy or Croc’s Eye Galaxy, is a spiral galaxy located in the constellation Canes Venatici. The Cat’s Eye Galaxy has an apparent magnitude of 8.99 and lies at a distance of 16 million light years from Earth. It has the designation NGC 4736 in the New General Catalogue. Messier 94 occupies an area of 11.2 by 9.1 arc minutes of apparent sky, which corresponds to a linear extension of 50,000 light years.

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M94 Spiral Galaxy • First Light with the ES165CF, 



    
        

            Douglas J Struble