Abell 2151 by Tony Hallas

The Abell 2151 luminance image was taken by Tony Hallas with a QSI 583ws camera using an AstroPhysics 8" APO refractor at f/8. Total exposure time was 11 hours using 33 20-minute subexposures. The image highlights the benefits of the small 5.4µm pixel in the QSI 583 when used with a shorter focal length instrument.

The color exposure time was 140 minutes each through Astrodon E-Series Gen 2 red, green and blue filters using 20-minute sub-exposures.

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