The California Nebula (NGC_1499) is a HII emission region in the constellation Perseus, it was discoverd by E.E. Barnard in 1884 on long exposure plates.
Because of the red color and it’s faintness it is usually only visible in photographs.
I used my unmodified Nikon D7000 camera in combination with the Nikon AF-Nikkor 85mm f/1.8 for this photograph. 11 individual exposures of 120 seconds at f/2.8 were combined using Regim by Andreas Rörig. Additional adjustments were made in Adobe Lightroom.
Last week a group of students from London discoverd a Supernova in the nearby galaxy M82 (in this case, nearby means 12 million lightyears…)
Professional search programs missed the supernova as the automatic detection programs ruled it out because it was too bright. M82 is part of the bright M81 & M82 galaxy pair.
Today I had the chance to take a picture of it:
Winter is not normally a good time for galaxies because the Milky Way is porminent in the sky, but while waiting for comet Lovejoy to rise, I used the time to spend a little exposure time on some bright galaxies.
Move your mouse over the image to see annotations for some galaxies.
A larger version of this image which has been annotated with AVM headers can be opened in Microsoft WWT:ngc4565_150mm.jpg
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Telescope:
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150mm f/5 Newtonian, Baader MPCC Coma Corrector |
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Camera
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Nikon D200 |
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Exposure:
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4x300s, ISO 800 |
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Date:
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18th, April 2009 |
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Processing:
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Preprocessing (Dark, Flat & Bias correction), Alignment & stacking in IRIS, histogram adjustment curves, color correction in Photoshop. |
