Hemisphere:  Southern  ·  Contains:  NGC 5139  ·  Omega Centauri
Getting plate-solving status, please wait...
Omega Centauri, 


            Rodney Watters

Omega Centauri

Technical card

Imaging telescopes or lenses: Tak TSA120

Imaging cameras: QSI 683 ws-8

Mounts: EQ8

Guiding telescopes or lenses: Tak TSA120

Guiding cameras: Starlight Xpress Lodestar x2

Focal reducers: Takahashi TOA Reducer .75x

Software: Pixinsight 1.8  ·  Sequence Generator Pro

Filters: Astronomik Red  ·  Astronomik Luminance  ·  Green  ·  Blue

Dates:May 4, 2020

Blue: 120x30" -20C bin 1x1
Green: 120x30" -20C bin 1x1
Astronomik Luminance: 120x30" -20C bin 1x1
Astronomik Red: 120x30" -20C bin 1x1

Integration: 4.0 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 11.36 days

Avg. Moon phase: 87.42%

Astrometry.net job: 3491311

RA center: 13h 26' 46"

DEC center: -47° 28' 58"

Pixel scale: 1.645 arcsec/pixel

Orientation: 87.315 degrees

Field radius: 0.893 degrees

Resolution: 3128x2344

Locations: Glanmire Home Observatory, Bathurst, NSW, Australia

Data source: Backyard


The famous Omega Centauri a very bright, expansive and stunningly beautiful globular cluster located in Centaurus. This image was an experiment to see if I could capture reasonable data on a bright object during a busy moon period. I grabbed one hour of data on the night of 3-4 May and the remaining three hours of data on the night of 4-5 May. The moon was between 77% to 88% illuminated over the two nights. Because of the bright moon I limited to sub times to 30 second but took lots of them (120 x 30s per channel for LRGB).

I am pleased with the result and it is interesting to compare it to my previous Omega Centauri taken seven years ago. The equipment used then was a Skywatcher 4" refractor and a Canon 550D DSLR (un modified). Here is a link to the previous image:




Rodney Watters
License: None (All rights reserved)

Sky plot

Sky plot


Omega Centauri, 


            Rodney Watters

In these public groups

PixInsight Addicts