Palomar 10 in Sagitta

Extremely Obscured Globular

Uploaded 10/21/07

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Lying behind a dark nebula in the constellation of Sagitta, this highly obscured globular cluster is seldom photographed. This 13.2 magnitude object spans about 4 arc minutes of sky, and the brightest stars are 18 - 19th magnitude. The globular appears very deep yellowish - red due to the obscuring dust, which reddens starlight considerably. The result is a dim but highly colored object in a field of bright Milkyway stars.

You will also notice that nearly all the stars in this field are yellowish as well. In fact, most of the stars in the field are behind the dust. Only a small handful of the brightest ones are in the foreground and are more blue.

Instrument: 12.5" f/5 Home made Newtonian Mount: Astrophysics 1200 QMD CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling Guider: Meade DSIpro w/Lumicon Newt Easy Guider Exposure: RGB = 40:40:40 AstroDon RGB Combine Ratio: 1: 1.05: 1.11 Location: Payson, Arizona, Elevation: 5150 ft. Sky: Seeing FWHM = 6 arcsec (Maxim DL - 10min subframe), Transparency 9/10 Outside Temperature: 45 F CCD Temperature: -30 C Image Processing Tools: Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking Gralaks Sigma: Stacking PixInsight: Curves, Deconvolution, noise reduction Photoshop CS2: Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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