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M97 - Owl Nebula Bicolour (HOO)

Technical card

Resolution: 1920x1337

Dates: May 26, 2017

Frames:
Astrodon Ha 3nm : 12x1800" bin 1x1
Astrodon OIII 3nm : 12x900" bin 1x1

Integration: 9.0 hours

Avg. Moon age: 0.20 days

Avg. Moon phase: 0.05%

Astrometry.net job: 1593089

RA center: 168.699 degrees

DEC center: 55.019 degrees

Pixel scale: 1.193 arcsec/pixel

Orientation: -84.424 degrees

Field radius: 0.388 degrees

Description

This is 6 hours of Ha and 6 Hours of OIII captured at my home observatory using my Esprit 120 and QSI 690 atop a Mesu 200 mount. Filters are Astrodon and exposures were 30 minutes each. Processing in PixInsight and Adobe Photoshop.

Comments

Author

Steve Milne
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Revisions

B

Following some feedback - a bit more contrast in the core. And a slightly tighter crop.

C

OK - this is the final version (...... for now .... ) Some subtle changes to the core which shows the two shells a little more clearly, I hope.

Sky plot

Sky plot

Histogram

M97 - Owl Nebula Bicolour (HOO), Steve Milne