Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  B161  ·  B367  ·  IC 1396  ·  Sh2-131  ·  VdB142
Getting plate-solving status, please wait...
Attempt at the Trunk, 



    
        

            Scotty Bishop
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Attempt at the Trunk

Getting plate-solving status, please wait...
Attempt at the Trunk, 



    
        

            Scotty Bishop
Powered byPixInsight

Attempt at the Trunk

Technical card

Imaging telescopes or lenses: Explore Scientific David Levy Comet Hunter 152mm f/4.8

Imaging cameras: Pentax K-5

Mounts: iOptron CEM60

Guiding telescopes or lenses: Astromania 50mm Guide Scope

Guiding cameras: MGEN II

Software: Adobe Phosotshop CS6  ·  Luc Coiffier's DSS 4.1.0 64 bit  ·  Noel Carbonni AstroFlat Pro


Dates:Aug. 3, 2019

Frames: 72x180" (3h 36') ISO1600

Integration: 3h 36'

Darks: 30

Flats: 10

Bias: 50

Avg. Moon age: 2.75 days

Avg. Moon phase: 8.34%

Temperature: 25.00


Astrometry.net job: 2841636

RA center: 21h 38' 42"

DEC center: +57° 31' 12"

Pixel scale: 1.339 arcsec/pixel

Orientation: -140.028 degrees

Field radius: 1.004 degrees


Resolution: 4563x2887

Data source: Backyard

Description

I attempted the Elephant Trunk again. I need to figure out what is causing the weird CA on brighter stars with this mak-newt. I've sent it to ES for collimation and cleaning and a focuser change, but still...

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Attempt at the Trunk, 



    
        

            Scotty Bishop

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Cloudy Nights
Central USA