Hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Great Cluster in Hercules  ·  M 13  ·  NGC 6205  ·  NGC 6207
Messier 13 - Great Globular Cluster in Hercules, 



    
        

            Frank Schmitz
Messier 13 - Great Globular Cluster in Hercules
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Messier 13 - Great Globular Cluster in Hercules

Technical card

Imaging telescopes or lenses: GSO 6" f/4 Imaging Newtonian Telescope

Imaging cameras: ZWO Optical ASI1600MM-Cool Pro

Mounts: Skywatcher HEQ5 Pro

Guiding telescopes or lenses: TS-Optics Deluxe 50 mm Guidescope

Guiding cameras: ALccd / QHYCCD ALccd/QHY 5L-IIc

Software: Adobe Photoshop CC 2017  ·  Astro Pixel Processor  ·  Seqence Generator Pro

Filters: Baader Planetarium L 31mm  ·  Baader Planetarium RGB 31mm

Accessory: ZWO Optical ZWO 5x1.25 MiniEFW


Dates:Feb. 15, 2018Feb. 16, 2018Feb. 17, 2018Feb. 19, 2018Feb. 21, 2018Feb. 23, 2018

Frames:
Baader Planetarium L 31mm: 30x120" (gain: 139.00) -20C bin 1x1
Baader Planetarium L 31mm: 30x180" (gain: 139.00) -20C bin 1x1
Baader Planetarium L 31mm: 30x20" (gain: 139.00) -20C bin 1x1
Baader Planetarium RGB 31mm: 90x120" (gain: 139.00) -20C bin 1x1
Baader Planetarium RGB 31mm: 30x180" (gain: 139.00) -20C bin 1x1
Baader Planetarium RGB 31mm: 90x20" (gain: 139.00) -20C bin 1x1

Integration: 7.7 hours

Darks: ~50

Flats: ~30

Bias: ~100

Avg. Moon age: 7.96 days

Avg. Moon phase: 16.35%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 1946749

RA center: 16h 41' 29"

DEC center: +36° 27' 10"

Pixel scale: 0.876 arcsec/pixel

Orientation: 272.980 degrees

Field radius: 0.742 degrees


Resolution: 4704x3875

Locations: Home, Odenthal, Deutschland, Germany

Description

Here's my attempt at good ol' M13. Really like how my scope held the focus during the night. Also the "Star Shape" setting as weighting for the subs in AstropixelProcessor helped a lot to get the smallest and nicest stars out of the stack. Quite pleased with how this one turned out. Also only a minimum of post processing was needed.

Again in my featured series "how it all begun" I hereby present you my last version of M13 from last year: M13 Single Shot

Comments

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Messier 13 - Great Globular Cluster in Hercules, 



    
        

            Frank Schmitz