* click on image for larger view *
- Description: IC289 - Planetary Nebula in Cassiopeia - the small "ring" located at the center
of this image. 48 arc seconds across, magnitude 12.3 with the central star of magnitude 15.9. The reddish
smudge on the left side of the photo is galaxy PGC2797416 (2MASS or 2 micron all-sky survey catalogue)
mag 15.5, 120 million light-years distant, receding at 2350Km/sec or 0.8% the speed of light.
- Camera: ZWO ASI533MC Pro, gain 0, -15C
- Filter: Antlia Quad
- Scope: Astro-Physics AP130EDT with field flattener
- Mount: Astro-Physics AP900QMD
- Exposure: 15 x 10 minutes
- System COntrol: ZWO ASIair+
- Location: S.W. Calgary, Ab.
- Date: 23 August, 2025.
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