The Orion Nebula M42/43
Emission and reflection nebulosities in Orion
Uploaded
1/10/10
There is
probably no more difficult object in the sky to properly photograph
than the Orion Nebula. It is so bright in the core, making it
impossible to capture the outer gossamer beauty and inner core
trapezium star cluster in a single frame. This image is a composite
merged from half a dozen images ranging in exposure from 2 seconds
to 20 minutes. Keeping the colors uniform over such a huge dynamic
range is challenging, which is why I had never attempted this
object seriously. Here is a stab at this object, and while not
perfect shows the most I can capture with my 12 inch and DSLR.
About M42
About a degree
in size, this 4th magnitude nebula is the brightest of its type
in the entire sky. It is a huge hydrogen cloud that has been
ionised by the high UV from the tiny central star cluster.
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Instrument: 12.5" f/5 Home built Newtonian
Platform: Astrophysics AP1200
Camera: Hutech Modified Canon XTi @ ISO1600
Exposure: 30m
Filters: Hutech type 1 pass
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing 8/10, Transparency 9/10
Outside Temperature: 40F
Processing Tools: Photoshop CS2, Maxim DSLR
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