|
|
|
Instrument |
12.5" RCOS @
~f/9 (2880 mm fl) 0.64 arcsec / pixel. The Zoomify image scale
is 0.64 to 2.69 arcsec / pixel. |
|
Mount |
Paramount ME |
|
Camera |
SBIG STL-11000 w/ internal filter wheel, AstroDon Gen II Filters |
|
Acquisition Data |
12/22/2011 to 1/4/2012 Chino Valley, AZ... with CCDAutoPilot3
& CCDSoft. AOL guided |
|
Exposure |
Lum 465 min. (31
x 15 min. bin 1x1)
RGB 720 min. (16 x 15 min. each, bin 2x2) |
|
Software |
-
CCDSoft, CCDStack,
Photoshop CS3, Noel Carboni's actions
and Russell Croman's
GradientXTerminator.
-
eXcalibrator 3.0 beta (g-r) color balancing, using 46 stars
from the SDSS-DR7 database.
-
PixFix32 (pre-beta) to
repair column defects.
-
CCDStack to calibrate,
register, normalize, data reject, combine the sub exposures and
create the color image.
-
PhotoShop
on-linear stretching
and LRGB combine.
-
Noiseware Pro, a PhotoShop plug-in.
|
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Comment |
North is to the top.
NGC 2859 is a
lenticular galaxy, located in the constellation Leo Minor, at a
distance of about 85 million light-years. Lenticular galaxies have
characteristics of both spiral and elliptical galaxies. NGC 2859
also has a strong bar, giving the galaxy the technical description
of SBO. Also visible, in the above image, is a seemingly detached
ring.
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