7/16/2008
to 7/30/2008 Chino Valley... with CCDAutoPilot3
Exposure
Red
75 min. (15 x 5 min. bin 2x2)
Green 75 min. (15 x
5 min. bin 2x2)
Blue
75 min. (15 x 5 min. bin 2x2)
Hα 135 min. ( 9 x 15 min. bin 1x1)
Hα
is used
for the luminance
Software
CCDSoft,
CCDStack, Photoshop CS w/ the Fits Liberator plugin and Noel Carboni's actions.
CCDStack to calibrate, register,
normalize, data reject & combine.
PhotoShop for
non-linear stretching and the color combine.
Comment
North is to the top.
The emission nebula on the left is famous partly because it
resembles Earth's continent of North America. To the right of the
North America Nebula, cataloged as NGC 7000, is a less luminous
nebula that resembles a pelican dubbed the Pelican Nebula, cataloged
as IC 5070. The two emission nebula measure about 50 light-years
across, are located about 1500 light-years away, and are separated
by a dark absorption cloud. The nebulae
can be seen with binoculars from a dark location. Look for a small
nebular patch north-east of bright star Deneb in the constellation
of Cygnus. Source: NASA
APOD