Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 3  ·  NGC 5272
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M3 Globular Cluster, 


            Michael Caller
M3 Globular Cluster
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M3 Globular Cluster

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 100 ED

Imaging cameras: ZWO 1600MM-C

Mounts: EQ6 R Pro SkyWatcher

Guiding telescopes or lenses: Altair astro 60mm guide scope Guidescope

Guiding cameras: Altair Astro GP Cam2 130 mono Guide Camrea

Software: PixInsight PinInsight 1.8.6  ·  Photoshop CC 2019  ·  PhD 2  ·  DDS  ·  APT  ·  QHY-CCD Polemaster Software Polemaster

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

Accessory: Pegasus Astro Ultimate Powerbox Ultimate Powerbox  ·  Pegasus Astro FocusCube  ·  Intel Compute Stick  ·  gamepad Joystick  ·  Homemade GPS unit

Dates:May 12, 2019

ZWO 36mm Blue Filter: 18x60" (gain: 75.00) -20C bin 1x1
ZWO 36mm Green Filter: 19x60" (gain: 75.00) -20C bin 1x1
ZWO 36mm Luminance Filter: 113x60" (gain: 75.00) -20C bin 1x1
ZWO 36mm Red Filter: 18x60" (gain: 75.00) -20C bin 1x1

Integration: 2.8 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Avg. Moon age: 7.88 days

Avg. Moon phase: 55.31%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details

Astrometry.net job: 2864342

RA center: 13h 42' 25"

DEC center: +28° 23' 16"

Pixel scale: 1.413 arcsec/pixel

Orientation: 270.533 degrees

Field radius: 1.077 degrees

Resolution: 4515x3125

Locations: Backyard, South Croydon, Surrey, United Kingdom

Data source: Backyard


Im not to happy with this data , however its my first go at a cluster.

Also think I have dust on on my luminance filter that need cleaning off.

Think I'm going to try processing just using dark calibration frames and see what results I get.


Sky plot

Sky plot


M3 Globular Cluster, 


            Michael Caller