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NGC2903
in Leo
in
Hydrogen Alpha Light
Barred
Spiral Galaxy in Leo
Uploaded
4/8/06
This
image is an experiment to see if this galaxy will make a viable
candidate for deeper hydrogen exposures to be combined later
with standard RGB frames. The wind on this night blew the scope
all around, and most frames were discarded. Surprisingly, the
Ha detail is excellent and the galaxy is hardly recognizable
as a barred spiral. The bright patches are not stars in the galaxy,
but intense hydrogen clouds. Note also the faint outer arms are
also enhanced with gas. More to come now on this deep sky gem! |
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling
Guider: SBIG ST4
Exposure: Ha = 50m
Filters: AstroDon 6nm Ha
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 8 arcsec (Maxim DL - 10min subframe), Transparency 9/10
Outside Temperature: 35 F
CCD Temperature: -30 C
Processing Tools: Maxim DL, Gralaks Sigma, Photoshop CS, PixInsight
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