Hemisphere:  Northern  ·  Contains:  7 chi Per  ·  Double cluster  ·  Misam  ·  NGC 869  ·  NGC 884  ·  NGC869  ·  NGC884  ·  The star 7Per
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A Fast double cluster, 


            Edoardo Luca Radi...
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A Fast double cluster

Imaging cameras: SBIG ST-2000XM

Mounts: 10 Micron GM1000 HPS

Guiding cameras: 10Micron HPS System

Focal reducers: William Optics 0.8x Field Flattener Type III

Software: Pixinsight

Filters: Astrodon L CCD 1.25"  ·  Astrodon G CCD 1.25"  ·  Astrodon B CCD 1.25"

Dates:Dec. 16, 2017

Astrodon B CCD 1.25": 6x300" bin 1x1
Astrodon G CCD 1.25": 5x300" bin 1x1
Astrodon R CCD 1.25": 6x300" -10C bin 1x1

Integration: 1.4 hours

Darks: ~30

Flats: ~20

Bias: ~50

Avg. Moon age: 27.94 days

Avg. Moon phase: 2.85%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2096076

RA center: 2h 20' 59"

DEC center: +57° 9' 15"

Pixel scale: 2.472 arcsec/pixel

Orientation: -3.162 degrees

Field radius: 0.686 degrees

Resolution: 1600x1200

Data source: Unknown


A test exposure on the Pouble Cluster of Perseus taken from Lierna on Lake of Como with my good friend Luigi

This shot was "forgotten" on my hard disk cause short exposure and "poor" data, but when the sky is cloudy for many months, every single photon COUNTS :-D



Edoardo Luca Radi...
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


A Fast double cluster, 


            Edoardo Luca Radi...

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