Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  M 103  ·  NGC 581
M103 - Open Cluster, Derryk
M103 - Open Cluster
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M103 - Open Cluster

M103 - Open Cluster, Derryk
M103 - Open Cluster
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M103 - Open Cluster

Equipment

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Acquisition details

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Description

M103 is an open cluster of stars located in the constellation of Cassiopeia at a distance of about 9500 light-years making it one of the furthest open clusters discovered. The cluster contains about 40 stars and spans about 15 light-years.



Taken in September 2018 from Campbell, CA, USA. Sky: 18.80 mag/arcsec^2



Total integration: 505 mins (8 hrs 25 mins)



Details, Equipment, & Software:

Telescope: Astro-Tech AT10RCT (FL2000mm f/8)

Camera: SBIG STF-8300m (-10°C)

Filter: Astrodon 36mm LRGB

Guide: OAG-8300 with QHY5III174

Focuser: Moonlite CSL w/ high res stepper motor

Mount: Astro-Physics AP1100GTO

Capture: Sequence Generator Pro

Frames:

Astrodon R: 34x300s

Astrodon G: 34x300s

Astrodon B: 33x300s

Stacking/Final Processing: Pixinsight

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M103 - Open Cluster, Derryk

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Messier Objects