M97 - The Owl Nebula

Planetary Nebula in Ursa Major

Uploaded 5/18/05

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 The color of this object in both amateur and professional images ranges quite a gamut. I've seen blues, greens, reds and every color in between. This image is G2V calibrated and I feel is pretty close to correct. The core of this object appears as a bluish-green hue, surrounded by a crimson red double rim. The central star is a lovely sky blue coloration as well. In the larger views you will see six or seven stars inside the nebula itself. The Owl is 12th magnitude, and a large 3.4 minutes in size - twice the size of the Ring in Lyra.

The field is filled with dozens of very faint galaxies, most 16th to 18th magnitude. The most famous of these is the faint tuft of nebulosity just touching the star to the upper right of the nebula. This object, pgc34279 is a bright 16.1 magnitude spiral galaxy which is .8 arcminutes long.

Seeing was horrid, but the sky was clear and transparent for this image.

Instrument: 12.5" f/5 Home made Newtonian Platform: Astrophysics 1200 QMD CCD Camera: SBIG 10XME NABG with Enhanced Cooling Guider: SBIG ST4 Exposure: LRGB = 60:20:20:20 (RGB Binned 2x2) RGB Combine Ratio: 1: 1.05: 1.11 Filters: AstroDon RGB Tricolor Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing FWHM = 8.5 arcsec (Maxim DL - 10min subframe), Transparency 8/10 Outside Temperature: 15 C CCD Temperature: -20 C Processing Tools: Maxim DL, Photoshop, PixInsight, RW Debloomer. HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS


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