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The Details
IC 1848 in Cassiopeia
Astro-Physics 160 EDF Refractor at f/5.7
Astro-Physics 1200 GTO
Tru-Balance 5nm H-alpha, 3nm OIII, 3nm SII filters Gen 2
06,22 November 2011 and 06, 07, 08 December 2011
Mount Wilson Observatory - Mount Wilson, CA
Ha 8h00m; OIII 8h00m; SII 8h00m - Total exposure time 24hours
Maxim DL/CCD, CCDStack 2, Photoshop CS5
Field of View: 02°11' x 01°27' centered on RA 02h54m01.4s
DEC+60°25’52” (2000.0). North angle 132.5°; east 90° CCW from north

IC 1848, the Fetus Nebula in Cassiopeia, lies at a distance of about 6500 light years from Earth as determined by the two open clusters embedded within its nebulosity, Collinder 33 and 34. The small nebulous patch detached from main body of IC 1848 along its left side is IC 1871.

The open star clusters formed about a million years ago from the material of the nebula. Winds and ultraviolet light from these young stars are excavating a cavity in the cloud. Parts of the cloud that are more dense than their surroundings are being eroded more slowly and form giant towers, or pillars of dust and gas, which all point toward the central star cluster. Material at the interior edges of the cavity is also being compressed by the winds and radiation from the star cluster. This triggers new star formation in those areas. The pillars inside the Soul Nebula are each about 10 light-years tall and have stars forming at their tips. Credit: NASA/JPL-Caltech/WISE Team

This "false color" image was created using a tricolor technique by assigning SII to the red channel, H-alpha to the Green channel, and OIII to the blue channel. A top luminance layer taken from the Ha data was used to complete the image.




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