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Click the image for a 54% size
wide view. (1800 x 1350 - 1.58 MB)
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Instrument |
Takahashi FSQ-106ED @
f/5.0 (530 mm F.L.) Captured at 2.1 arcsec/pixel. Shown at
3.91 and 6.08 arcsec/pixel. |
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Mount |
Paramount MyT |
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Camera |
SBIG STF-8300M Self
Guiding Package w/ mono ST-i, using AstroDon E-Series LRGB filters. |
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Acquisition Data |
10/13/2016 to
10/22/2016
Chino Valley, AZ with CCD Commander & CCDSoft. |
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Exposure |
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RGB |
630 min. (21
x 10 min. each) Binned 1x1 |
RGB
combine ratios are 1.00,
1.00, 0.86 |
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Software & Processing
Notes |
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CCDSoft, CCDStack,
PixInsight, Photoshop CS6
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eXcalibrator v6.2 for
(g:r)(b:r)
color balancing, using 520 stars from the Pan-STARRS database.
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PixInsight
processing includes calibration,
CosmeticCorrection,
registering, stacking, RGB
creation, gradient removal, non-linear stretching
with HistogramTransformation.
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Noiseware 5, a PhotoShop plug-in.
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PhotoShop final
touch-up includes background noise reduction and additional
background neutralization.
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Comment |
North is to the
top.
Barnard 150, also
known as the Seahorse Nebula, is a dark nebula in the constellation
of Cepheus. The dusty, obscuring clouds are part of a Milky Way
molecular cloud about 1,200 light-years distant. The darkest areas
completely block the light of the more distant stars.
Edward Barnard was a pioneering astrophotographer. Starting in about
1919 he photographed and cataloged 370 dark nebulae.
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