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Click the image for a larger view.
Planetary Nebula PK 110-12 1
(at 150%)
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Instrument |
Takahashi FSQ-106ED @
f/5.0 (530 mm F.L.) Captured at 2.1 arcsec/pixel. Shown at
4.2 and 9.38 arcsec/pixel. |
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Mount |
Losmandy G11 with Gemini L4 v1.0 |
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Camera |
SBIG STF-8300M Self
Guiding Package w/ mono ST-i, using Baader LRGB filters. |
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Acquisition Data |
11/5/2013
to 12/5/2013 Chino Valley, AZ... with CCDAutoPilot5 & CCDSoft. |
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Exposure |
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Lum |
405
min. (27 x 15 min. bin 1x1) |
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Red |
105 min. ( 7 x
15 min. each bin 1x1) |
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Green
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135 min. ( 9 x 15 min. each bin 1x1)
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Blue
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165 min. (11 x 15 min. each bin 1x1)
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Software & Processing Notes |
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CCDSoft, CCDStack, PixInsight
and Photoshop CS6.
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eXcalibrator v4.2
for (g:r) color balancing, using 418 stars from the SDSS-DR9
database.
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CCDStack to
calibrate, register, normalize, data reject, combine the sub
exposures and to create the RGB
image.
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PixInsight for
color gradient removal and initial non-linear stretching.
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PhotoShop for the
LRGB combine & final touch-up.
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Noiseware 5, a
PhotoShop plug-in.
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Comment |
The nebula is shown
rotated 90 degrees clockwise.
GAL110−13 is an
elongated molecular cloud, at a distance of about 1,400 light-years,
in the constellation of Andromeda. The blue reflection nebula, vdB
158, is located at the southern end of the cloud. The nearby bright
B-Type star, HD 222142, illuminates VdB 158.
At 10 o'clock from vdB 158, and about halfway to the edge of the
image, is the small planetary nebula PK 110-12 1. Luboš
Kohoutek discovered the PN in 1963. Distance estimates range
from 13.8 to 17.1 thousand light-years.
For more information about Gal 110-13, see the following abstract
and search for "Gal 110".
Triggered Star Formation By Massive Stars
Authors: Hsu-Tai Lee, W. P. Chenula.
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