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Graham Meyer | all galleries >> astro_photography >> star_clusters > NGC5139_LRGB.jpg
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NGC5139_LRGB.jpg

From Wikipedia

Omega Centauri (ω Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 17,090 light-years (5,240 pc), it is the largest known globular cluster in the Milky Way at a diameter of roughly 150 light-years. It is estimated to contain approximately 10 million stars, and a total mass equivalent to 4 million solar masses,[11] making it the most massive known globular cluster in the Milky Way.

Omega Centauri is very different from most other galactic globular clusters to the extent that it is thought to have an origin as the core remnant of a disrupted dwarf galaxy.

Telescope: William Optics FLT132

Camera: QHY9 Mono @ -20c

Filter Wheel: QHY 7 position Ultra Slim

Filters: QHY 36mm unmounted L R G B, Baader 36mm unmounted HA OIII SII

Guidng: QHY OAG

Guide Camera: QHY5L-II

Mount: AZ-EQ6

Light Box by Exfso

Mount Control: EQASCOM

Focusing: SharpSky Pro and Sequence Generator Pro 3 (automated)

Capture Software: Sequence Generator Pro 3

Guiding Software: PHD2

Calibration and Stacking Software: PixInsight

Processing Software: PixInsight

Number and Type of Data Frames: L= 10X5min, R= 12x3min, G= 12x3min,
B= 7x3min

Ha= x min, SII= x min, OIII= x min.

Binning: 1x1

Total Image Time: 2 hrs 23 minutes

Location: Lockleys Observatory B, Tanunda, Sth Australia


other sizes: small medium large original auto
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