NGC2903 in Leo

in Hydrogen Alpha Light

Barred Spiral Galaxy in Leo

Uploaded 4/8/06

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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 HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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