|
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. |
|
Mount |
Losmandy G11 with Gemini L4 v1.0 |
|
Camera |
SBIG STF-8300M Self
Guiding Package w/ mono ST-i, with Baader LRGB filters. |
|
Acquisition Data |
10/20/2014 to
11/29/2014
Chino Valley, AZ |
|
Exposure |
|
Lum |
560 min. (80 x
7 min.) binned 1x1 |
|
Red |
210 min. (30 x
7 min.) " |
|
Green
|
245 min. (35 x 7 min.)
" |
|
Blue
|
378 min. (54 x 7 min.)
" |
eXcalibrator RGB
ratios are 1.00, 1.27 & 1.56 |
|
Software |
-
CCDSoft, CCDStack,
PixInsight & Photoshop CS6.
-
eXcalibrator
v4.30 for (g:r) color balancing, using 108 stars from the
SDSS-DR9 database.
-
CCDStack to
calibrate the sub exposures, registering and stacking the R,G
and B sub exposures and creating the RGB image.
-
PixInsight
processing includes registration and stacking the luminance sub exposures,
gradient repair, the initial non-linear
stretching with HistogramTransformation, HDRMultiscaleTransform
& LocalHistogramEqualization.
-
PhotoShop to
create the LRGB and final touch-up.
-
Noiseware 5, a
PhotoShop plug-in.
|
|
Comment |
North is to the right.
M78 (NGC 2068) is the
brightest reflection nebula of a group that also includes NGC 2064,
NGC 2067 and NGC 2071. The group is located in the Orion Molecular
Cloud Complex that is about 1,600 light years from Earth. M78 was
discovered by Pierre Méchain in 1780 and catalogued by Charles
Messier in the same year. |
