Hemisphere:  Southern  ·  Constellation: Centaurus (Cen)  ·  Contains:  NGC 5139  ·  Omega Centauri
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Omega Centauri (NGC 5139), 



    
        

            Todd
Omega Centauri (NGC 5139)
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Omega Centauri (NGC 5139)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
Omega Centauri (NGC 5139), 



    
        

            Todd
Omega Centauri (NGC 5139)
Powered byPixInsight

Omega Centauri (NGC 5139)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Technical card

Imaging telescopes or lenses: Skywatcher 100ED F9 APO Skywwtcher ED100

Imaging cameras: ZWO ASI1600MM Pro

Mounts: SkyWatcher EQ6R Pro

Guiding cameras: QHYCCD QHY5L-II-M

Focal reducers: Skywatcher 0.85x Focal Reducer 100ED

Software: Pixinsight 1.8  ·  GIMP

Filters: ZWO B 36mm  ·  ZWO G 36mm  ·  ZWO R 36mm  ·  ZWO L 36mm


Dates:June 5, 2020

Frames:
ZWO B 36mm: 36x20" (12') (gain: 300.00) bin 1x1
ZWO G 36mm: 36x20" (12') (gain: 300.00) bin 1x1
ZWO L 36mm: 36x20" (12') (gain: 300.00) bin 1x1
ZWO R 36mm: 36x20" (12') (gain: 300.00) bin 1x1

Integration: 48'

Darks: 37

Flats: 20

Avg. Moon age: 14.43 days

Avg. Moon phase: 99.87%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 3585216

RA center: 13h 26' 49"

DEC center: -47° 28' 37"

Pixel scale: 1.001 arcsec/pixel

Orientation: 336.346 degrees

Field radius: 0.449 degrees


Resolution: 2364x2200

Data source: Backyard

Description

I've imaged it before, but never quite like this.

About 3 dozen 20 second subs at gain 300 per LRGB channel, extracting this #GlobularCluster from the very bright full moon aura last night. I'd estimate the scope was pointed maybe 10-15 degrees away from the moon itself.

A new technique for me, never having been happy with how my stars appear. I stumbled on it during the spur of the moment Comet Swan attempt, when I noticed that despite not getting the comet's tail, I was happy with how the stars turned out.

This globular cluster is possibly the remnant of a former galaxy, drawn in to the Milky Way and spun up to a "mere" 10 million stars after gathering some of our own, now weighing in at 5 million suns (earthsky.org)

I wonder if this is what the core of the Small Magellanic Cloud may become when we have consumed it. Maybe it's already too spread out.

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Omega Centauri (NGC 5139), 



    
        

            Todd