High resolution Omega Centauri

Omega Centauri: millions of stars

With a total integration time of about 12.5 hours, this raw stacked image will reveal the millions of stars of Omega Centauri, a prominent globular cluster, or a remnant of a drwaf galaxy, in the constellation Centaurus.

Thanks to a sampling of 0.81 arcsec/pixel and a mean seeing of 1 arcseconds, Omega Centauri is well resolved even in the central, crowded regions.

Inside this sample pack you will find a small but useful set of files built for astrophotographers who want to test the data, compare their processing, and explore the potential of astrophotography from the darkest sky of the world.

Included in this dataset:

• 1 stacked image file in fits and xisf format at maximum resolution (6248X4176 pixels) taken with a Newtonian 200 mm f5 telescope, ASI 2600MC camera operating at -10°C from Bortle 1 sky. Integration time of 75X600 seconds, with average seeing of 1.0 arcseconds, humidity around 40%, and mean autoguiding error (RMS) of 0.40 arcseconds. Each single frame has been calibrated with master dark frames, master sky flat fields and master bias frame (for the flat frames)
• 1 finished reference image processed following my workflow with PixInsight and Photoshop
• 1 short data sheet with acquisition notes
• 1 quick-start processing note

Usage note

This dataset is provided for personal learning and processing practice only. DO not share the raw image. You may share your processed version for non commercial purpose by providing credit to the owner of the data (Daniele Gasparri).