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Technical card

Imaging telescope or lens: Orion 8" f3.9 Astrograph

Imaging camera: Canon 550D

Mount: Celestron CGEM DX

Guiding telescope or lens: Vixen Finderscope 9x50

Guiding camera: Orion StarShoot AutoGuider

Focal reducer: MPCC

Software: PixInsightPHD GuidingO'Telescope BackyardEOS

Resolution: 5118x3366

Integration: 0.0 hours

Astrometry.net job: 188063

RA center: 201.753 degrees

DEC center: -47.480 degrees

Pixel scale: 1.100 arcsec/pixel

Orientation: -179.110 degrees

Field radius: 0.936 degrees

Description

Omega Centauri, NGC 5139

Located in the constellation Centaurus, Omega Centauri is the largest globular cluster in our Milky Way galaxy.

This is the second target visible only in the southern hemisphere I have imaged since moving to South Africa. Omega Centauri is especially impressive to me coming from the USA and being used to M13, the Hercules globular cluster, which used to seem big.

Image details:
Data acquired on 2013-12-31

23x 2min ISO400
Calibrated with dark, flat, and bias frames
Orion 8" Astrograph
Baader MPCC coma corrector
Canon t2i / 550D DSLR (Baader IR modded)
Celestron CGEM DX mount
Orion SSAG + 50mm finder/guider
Data acquired with BackyardEOS
Calibration, integration, and post-processing with PixInsight

Comments

Author

Cory Schmitz
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Omega Centauri, NGC 5139, Cory Schmitz

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