|
Instrument |
Takahashi FSQ-106ED @
f/5.0 (530 mm F.L.) Captured at 2.1 arcsec/pixel. Shown at 3.81 and
9.15 arcsec/pixel. |
|
Mount |
Losmandy G11 with Gemini L4 v1.0 |
|
Camera |
SBIG STF-8300M Self
Guiding Package w/ mono ST-i, using Baader LRGB filters. |
|
Acquisition Data |
Taken 10/5/2014 to
11/20/2014 Chino Valley, AZ. |
|
Exposure |
|
Lum |
462 min. (66 x
7 min.) binned 1x1 |
|
Red |
343 min. (49 x
7 min.) " |
|
Green
|
427 min. (61 x 7 min.)
" |
|
Blue
|
497 min. (71 x 7 min.)
" |
RGB ratios are 1.00, 1.21 & 1.42 |
|
Software & Processing Notes |
-
CCDSoft, CCDStack,
PixInsight & Photoshop CS6.
-
A standard
image-train calibration was used, as determined by
eXcalibrator v4.30, and then adjusted for altitude
extinction.
-
CCDStack to
calibrate all sub exposures, register and stack the color and create the RGB image.
-
PixInsight
processing includes registering and stacking the luminance,
gradient repair, non-linear stretching with HistogramTransformation
and MaskedStretch,
HDRMultiscaleTransform and LRGB creation.
-
PhotoShop for
the final touch up.
-
Noiseware 5, a
PhotoShop plug-in.
|
|
Comment |
North is to the
right.
These two beautiful
reflection nebulae are a small part of a large dust cloud in the
constellation Camelopardalis. vdB 15 is the blue area to the left
and vdB 14 is the sickle-shaped blue nebula to the right. At a
distance of about 3000 light years, magnitude 5 and magnitude 4
supergiants respectively illuminate them.
At the upper left-hand corner there appears to be small unnamed
emission nebula. At the bottom center, is the faint red glow of the
nearby emission nebula Sh2-202. |
