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| Click image for full resolution |
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| Object name: |
NGC 1499 - California Nebula |
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Optics: |
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TEC
140 Apo-refractor with original field flattener |
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Objekt type: |
Emission nebula |
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Focal lenght: |
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980
mm |
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Constellation: |
Perseus |
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Camera: |
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FLI ML 16803-65 |
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Location / Date: |
Remseck
/ 30.January 2011 |
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Exposure: |
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10
x 1200 sec H-alpha / 5 x 1200 sec OIII / 5 x 1200 sec SII / 1 x 300 sec RGB |
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Distance: |
approx.
1000 Lj |
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Filters: |
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Baader H-alpha filter 7 nm / OIII-filter 8.5 nm / SII-filter 8 nm |
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Apparent dimensions: |
approx.
160' x 40' |
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Mount: |
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10micron
GM2000 |
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Real dimensions: |
- |
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Autoguiding: |
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Off-Axis Guider - SX Lodestar |
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Brightness: |
6.0 m |
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Software: |
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MaxIm DL
/ Registar / Photoshop CS3 |
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Position
(R.A. / DEC): |
04h
03' 18.00" / +36° 25' 18.0" |
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Image processing: |
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Tone-Mapping-Method / real color |
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Explanation:
The California Nebula, NGC 1499 is an emission nebula located in the constellation Perseus.
Unlike to other typical HII nebulaes, there is very little OIII emission but relatively
much emission in SII. With a distance of only approx. 1000 Ly, NGC 1499 is
the nearest HII nebula.
The colors are mapped to real colors:
red = H-alpha + 25% SII
green = OIII
blue = OIII + 15% H-alpha
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