M71 - Globular Cluster, Derryk

M71 - Globular Cluster

M71 - Globular Cluster, Derryk

M71 - Globular Cluster

Equipment

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Acquisition details

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Description

Also known as NGC6838, M71 is a very loosely concentrated globular cluster that lies in the constellation Sagitta at a distance of about 13,000 light-years away and spans about 27 light years across.



Taken over several nights in June & July 2018 from Campbell, CA, USA. Sky: 18.80 mag/arcsec^2



Total integration: 565 mins (9 hr 25 mins)



Details, Equipment, & Software:

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

Camera: SBIG STF-8300m (-10°C)

Filter: Astrodon 36mm LRGB & Hα 5nm

Guide: OAG-8300 with QHY5III174

Focuser: Moonlite CSL w/ high res stepper motor

Mount: Astro-Physics AP1100GTO

Capture: Sequence Generator Pro

Frames:

Astrodon R: 39x300s

Astrodon G: 38x300s

Astrodon B: 36x300s

Stacking/Final Processing: Pixinsight

Comments

Histogram

M71 - Globular Cluster, Derryk

In these collections

Messier Objects