M92 6/15/2012

Catching Light

Photography by

Dan Lessmann

Oklahoma City Clear Sky Clock

Cheddar Ranch Observatory Clear Sky Clock

Catching Light

Photography by

Dan Lessmann

Oklahoma City Clear Sky Clock

Cheddar Ranch Observatory Clear Sky Clock

M92

Click image for larger version.

Being a close neighbor to M13, M92 is often overlooked up in Hercules. Yet as globular clusters go, it's an interesting contrast to its neighbor because of it's very compact and dense core. M13 is much more diffuse at its core or so it seems to me.

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Date: 6/15/2012

Location: 4Domes Observatory

Telescope: C14 @ f/9

Mount: AP-1200

Camera: SBIG STL-6303E

Acquisition and Guiding: CCD Autopilot controlling Maxim DL

LRGB Combine Exposures:

Luminance - 10 x 600, Bin 1x1, 1.7 hr

Red - 5x300 Seconds, Bin 2x2

Green - 5x300 Seconds, Bin 2x2

Blue - 5x300 Seconds, Bin 2x2

Post Processing:

ImagesPlus: Calibration, align and combine, digital development

Photoshop CS4: Luminance, color combine, levels, sharpening

NeatImage: Noise reduction