|
|
|
Instrument |
Celestron
C11 @ ~f/10.3 (~2900 mm fl)... reduced to 1.27 arcsec / pixel. |
|
Mount |
Paramount ME |
|
Camera |
SBIG STL-11000 w/
internal filer wheel, AstroDon Filters |
|
Acquisition Date |
10/09/07 to 10/30/07
Chino Valley... with CCDAutoPilot3 |
|
Exposure |
Lum
120 min (24 X 5 min, BIN 1 x 1)
RGB 120 min. (24 x 5 bin 2x2) each |
|
Software |
CCDSoft,
Photoshop CS w/ the Fits Liberator plugin and Noel
Carboni's actions,
Sigma Clip (pre beta
11) and Paint Shop Pro. |
|
Comment |
North is to the
top.
Messier 27 (M27) is
excellent example of a gaseous emission nebula created as a sun-like
star runs out of nuclear fuel in its core. The nebula forms as the
star's outer layers are expelled into space. Known by the popular
name of the "Dumbbell Nebula", the beautifully symmetric
interstellar gas cloud is about 1,200 light-years away in the
constellation Vulpecula. |
══════════════════════════════════
|
Instrument |
Celestron C11 @ F/6.1
(1705 mm) 1.087 arcsec / pixel |
|
Mount |
Losmandy G11 |
|
Camera |
SBIG ST-7 with
CFW-8A color wheel |
|
Acquisition Date |
8/19/05 to 9/2/05
Near downtown Seattle |
|
Exposure |
Lum
285 min
(19 x 15 min)
Red 60 min ( 6 x 10, bin 2 x 2)
Green 60 min ( 6 x 10, bin 2 x 2)
Blue 60 min ( 4 x 15, bin 2 x 2)
|
|
Software |
CCDSoft, FocusMax,
PhotoShop CS & Paint Shop Pro. The DitherMat was used to
dither the luminance layer |
|
Comment |
North is to the top. |
|
