|
Michael A. Stecker |
|
Home
Galaxies
Star Clusters
Star Fields
Astronomy Index
Dark Nebulae
Sky-Watcher Quattro 250P Askar 103 APO C11 images Bright Nebulae My Astrobin Gallery |
 NGC 6543, version 1 (Cat's Eye Nebula) NGC 6543, also known as the "Cat's Eye Nebula", is a planetary nebula sits in the constellation Dracos, roughly 4,000 light-years from Earth. This cropped image is a joint projectof JamesFoster andMichael Stecker using my Celestron11-inch Schmidt Cassegrain telescope at f/7.5 with a monochrome camera shot through Hydrogen-alpha (448 min), Oxygen-III (120 min), Red (45 min, Green (53 min) and Blue (53 min)for a total of 719-minutes or 11.9 hours. file: astNGC6543HaOIIIRGB2C2-a2.jpg Click here for full resolution image Photographic Data Date: August, 2026 Telescope: Celestron C11: 11-inch Schmidt Cassegrain telescope at f/7.5 Mount: ZWO AM7 harmonic mount Guidimg: Off-axis Imaging camera: ZWO ASI6200MM-Pro monochrome camera cropped image Exposures: Ha:420sec X 98 (406 min or 6.76 hours) OIII:300 sec X 57 (285 min or 4.75 hours) Red(long:120 sec X 15 or 32 min Red(short: 20sec X 3 (60sec) Green(long): 32min Green(short: 20 sec X 25 (500sec or 8.3 min) Blue(long: 120 sec X 14 (28min) Blue(short): 20 sec X 25 (500sec) -- Total Exposure: 800.666 min or 13.344 Hrs 2/3rd's processed with PI (1/3 MaximDL)...all processed thru PS and RC-Astro Star-Shrink Image processing: MaximDL, Pixinsight, ML Astro StarShrink plugin and Adobe Photoshop Elements Photographic site: James Foster Observatory at Pinon Pines Estates (Frazier Park, CA) Bortle 4 at 5,500 feet elevation  Center crop of NGC 6543 (v.1) file: NGC6543HaOIIIRGB2C2-a3crc.jpg Click here for full resolution image ************************************** |
 NGC 6543, version 2 file: NGC6543HaOIIIRGB2C5-JRForig.jpg Click here for full resolution image |