This is the Eagle Nebula in Serpens Cauda. It is officially
cataloged as an open cluster with nebulosity, primarily an
Ha emission nebula, and is also a region of active star
birth about 7,000 light years distant toward the center of
our galaxy.
The Eagle Nebula was the subject of the famous
Pillars of Creation Hubble image acquired in 1995.
This image showcased the central pillars that make up the
"eagle" and the pillar above its head. These massive, light
year long pillars of gas and dust are formed by the
ultraviolet radiation pressure of the young and very large
stars above and right of the eagle in a process known as
photoevaporation. These pillars of denser gas and dust are
left behind much like mesas and spires in a desert as the
less dense clouds are literally blown away by the stars'
solar winds.
As the pillars are eroded, the gas and dust at their tips is
compressed allowing new proto stars to form. Such a proto
star is evident in the tip of the larger pillar above the
eagle's head.
Visually, little of this nebulosity is apparent except in
larger telescopes. Instead one sees the beautiful star
clusters that surround the region.
Back to Messier Gallery
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Date: 3/23/2012
Location:
4Domes Observatory
Telescope: C14 @ f/9
Mount: AP-1200
Camera: SBIG STL-6303E
Acquisition and Guiding: Maxim DL
LRGB Combine Exposures: |
Ha - 5 x 1,200, Bin 1x1, 1.7 hrs (Used as nebula
luminance)
Luminance - 6 x 600, Bin 1x1, 1 hr (Used as star
luminance)
Red - 5x300 Seconds, Bin 2x2
Green - 5x300 Seconds, Bin 2x2
Blue - 5x300 Seconds, Bin 2x2
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Post Processing: |
ImagesPlus: Calibration, align and
combine, digital development
Photoshop CS4: Luminance, color combine, levels, curves,
LAB color adjustment, high pass filter
NeatImage: Noise reduction
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