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Cone Nebula.
Ceravolo f9 Astrograph
Astrodon 3mm filters
ME
16 hrs at LHaRGB (6-4-2-2-2) hrs respectively
12 hrs using PS-Cs5x and maxIm DL
March 26-28-2011
Brian McGaffney at Nutwood Observatory
The Cone Nebula is a famous nebula in the Orion Arm surrounding the NGC 2264 star cluster.
The 'cone' is a triangular dark nebula near the bottom of the nebula. Resembling a
nightmarish beast rearing its head from a crimson sea, this monstrous object is actually a
pillar of gas and dust. Called the Cone Nebula because of its conical shape in ground-based
images, this giant pillar resides in a turbulent star-forming region. The entire nebula is
7 light years in length. The Cone Nebula resides 2,500 light-years away in the constellation
Monoceros.
This image is an 8 bit jpeg, but the original is a 32 bittiff with much greater detail
obviously. This 32 bit version is available for seperate downloads.
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| The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission
nebula in the constellation Cygnus, about 5000 light years away. It is formed by the fast
stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing
the slower moving wind ejected by the star when it became a red giant around 400,000 years
ago. The result of the collision is a shell and two shock waves, one moving outward and
one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting
temperatures. This object is about 25 light years wide.
Details: (2 images included, 1 wide, and one close-up)
CCD image taken from the Nutwood observatpory Dec 9th/10. This object is fading from view
into the western sky, but managed to get fair results. CCD camera an Apogee U16M, with a
300mm Ceravol Astrograph on an ME mount using Astrodon Filters. This image is a composite
of Luminance, Ha (substituted for red by 80%)BG, hence LHa+HaGB.
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VDB 152
Described as a "dusty curtain" or "ghostly apparition", mysterious reflection nebula vdB 152
really is very faint. It lies about 1400 light-years away, along the northern Milky Way in
the royal constellation Cepheus. Near the edge of a large molecular cloud, pockets of cosmic
dust in the region block the light from background stars or scatter light from the embedded
bright star (top) giving parts of the nebula a characteristic blue color. Ultraviolet light
from the star is also thought to cause a dim reddish luminescence in the nebular dust. Though
stars do form in molecular clouds, this star seems to have only accidentally wandered into
the area, as its measured velocity through interstellar space is very different from the
cloud's velocity .
In this close-up it can be seen that the wandering star (blue nebulosity) actually is
displaying a giant bubble around it. Look closely to see it. Most probably because to the
defraction on the light through the dust.
This image taken from the Nutwood Observatory, Dec 11th. Total exposure 10 hrs. as a LLRGB.
Using a Cerovolo astrograph.
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IC 5146 (Cocoon Nebula)
Nutwood Observatory |
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Lagoon Nebula |
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M16
Combine Files Avg 2 copy 1.26mb 800x600 75dpi |
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M27
Stack crop web |
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M42 Orion Nebula
10 stacked 2.5min exposures at ISO 800 |
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M42
LRGB
Nutwood Obseratory
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M42
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NGC7635 - Bubble Nebula |
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North American Nebula
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