|
|
|
Instrument |
12.5" RCOS @
~f/9 (2880 mm fl) 0.64 arcsec / pixel. The Zoomify image scale
is 1.28 to 3.20 arcsec / pixel. |
|
Mount |
Paramount ME |
|
Camera |
SBIG STL-11000 w/ internal filter wheel, AstroDon Gen I Filters |
|
Acquisition Data |
9/19/2010 to 10/27/2010 Chino Valley, AZ... with CCDAutoPilot3
& CCDSoft. AOL guided |
|
Exposure |
Lum (no filter)
330 min (22 x 15 min, bin 1x1)
RGB
360 min ( 8 x 15 min each, bin 2x2)
Click
here for the narrow band color
mapped images
Click
here for an Ha filtered b/w
image. |
|
Software |
-
CCDSoft, CCDStack,
Photoshop CS3.
-
eXcalibrator for (b-v), (v-r)
color balance, using 45 stars
from the NOMAD1 database.
-
PixFix32 (pre-beta) to
repair column defects.
-
CCDStack to calibrate,
register, normalize, data reject, combining the sub exposures, RGB combine
and DDP
-
PhotoShop for
additional
non-linear stretching
-
Noiseware Pro, a PhotoShop plug-in
|
|
Comment |
North is ~ to the
left. This close up view of IC 1805 is rotated 110 degrees CCW.
Sprawling across
hundreds of light-years, emission nebula IC 1805 is a mix of glowing
interstellar gas and dark dust clouds. Only about 7,500 light-years
away, stars were born in this region, nicknamed the Heart Nebula.
Light from this and other glowing gas clouds surrounding hot, young
stars comes in very narrow bands of emission characteristic of
energized atoms within the clouds.
Source:
NASA APOD
|
|
