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M27 / Dumbbell Nebula / NGC 6853 / Apple Core Nebula by Brian Hormbrey

Shells of gas expelled by dying stars.

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	Replies	Views	Created
Help with processing NGC 6543 core detail in PixInsight Pleiades Astrophoto PixInsight Processing Help Needed +3 Roger Renberg Last post: Jan Erik Vallestad	12	324	Sep 11, 2025
A Comparison - Fast vs. Large FLI PL16803 Equipment Optics +2 andrea tasselliFrequent contributor Last post: andrea tasselli	19	1.4k	Jul 27, 2025
EAF Settings Celestron EdgeHD 8"M27 Messier Objects +2 AstroDarks Last post: AstroDarks	7	446	Jul 21, 2025
RCC: Please critique my dumbbell nebula (I’m new to mono imaging). SHO Request for feedback M27 +2 Tommy Mastro Last post: Tommy Mastro	27	868	Jul 14, 2025
C11 Unexpected Diffraction Spikes Celestron C11 SC XLT M57 Troubleshooting +2 Jeramie Last post: Jeramie	29	586	Jul 7, 2025
CALL: Overall Photons Project_4 Collaboration Planetary Nebula Deep Sky Overall Photons	0	197	Jun 27, 2025
OD4 with 10nm band pass or OD5 with 20nm band pass Equipment Filters Planetary Nebula AstroÅmazer Last post: andrea tasselli	3	116	May 18, 2025
Atlas of Planetary Nebulae Off-topic Planetary Nebula Book Recommendations Peter Goodhew Last post: Sean Jackson	5	225	Mar 6, 2025
Need help or tutorial for M57 (or similar PNs like cat's eye) processing Processing Deep Sky M57 +2 YingtianZZZ Last post: YingtianZZZ	21	630	Mar 3, 2025
Beugungsbild mit Barlow Linse 3x Barlow Planetary Nebula Deutsch Johannes Jußen Last post: Tony Gondola	3	156	Feb 18, 2025
Another Ultra-Faint H-alpha Region - Has Anyone Imaged It? H-alpha Planetary Nebula The0s	0	227	Dec 24, 2024
Discovery of Possible Planetary Nebula (or Other Astronomical Object) in Cassiopeia Off-topic NGC427 Planetary Nebula +2 Peter Boreland Last post: Oscar	24	1.3k	Nov 21, 2024
Best way/tool/database to identify tiny objects in our pictures? Deep Sky Planetary Nebula ValeryL Last post: Salvatore Iovene	12	398	Sep 27, 2024
Overall Photons Project#1: call for data submission Collaboration NGC7293 Deep Sky +2 Andrea Iorio Last post: Andrea Iorio	4	349	Aug 25, 2024
C11 with Starizona corrector (corrector already purchased) vs EdgeHD 11 with reducer? Celestron EdgeHD 11"Equipment Buying Advice +1 Rob Calfee Last post: Philippe Germon	10	586	Jun 29, 2024
Origens of Group and IPHAS versus IPHASX IPHAS Planetary Nebulae Planetary Nebula Deep Sky Jerry Yesavage Last post: Jerry Yesavage	2	16	Mar 8, 2024
Useful Group Kohoutek Planetary Nebulae Abell Objects Planetary Nebula Jerry Yesavage Last post: Tareq Abdulla	9	72	Dec 3, 2023
Atlas der Planetarischen Nebel: Aufruf an alle Astrofotografen! Planetary Nebula Book Recommendations Deutsch Oculum-Verlag Last post: Nedim Bevrnja	4	642	Aug 23, 2023
M27 Request for feedback M27 Messier Objects +2 Paul Ecclestone-Brown Last post: Frédéric Ruciak	1	105	Aug 10, 2023
Incorrect RGB Colours after PixInsight Channel Combination Pleiades Astrophoto PixInsight M57 Planetary Nebula +2 AstroRBA Last post: Jerry Yesavage	22	2.2k	Jul 31, 2023
What is this structure in the Hubble WFC3 814W and 606W capture of NGC 5189 ? Planetary Nebula Pranay Kanwar Last post: Pranay Kanwar	13	875	Feb 22, 2023
What is the maximum viable F-Ratio for a Telescope used to find planetary nebula? Equipment OIII Planetary Nebula Anderl Last post: Björn Arnold	7	656	Feb 18, 2023
WeBo 1 planetary nebula Rarely Imaged Small DSOs Planetary Nebula Deep Sky Variable Stars Soothsayerman Last post: Herbert_West	4	284	Dec 12, 2022
Help needed identifying an object in Perseus Planetary Nebula Deep Sky Roger Nichol Last post: Roger Nichol	2	201	Nov 20, 2022
Trying to identify a planetary nebula used in a 1966 video by 'The Byrds' (Really!) Planetary Nebula Deep Sky DanaPatchick Last post: Chris DeCosta	16	1.5k	Nov 7, 2022
Advice on my results with an Edge8 hd on M27 unguided. Request for feedback M27 Help Needed +2 Redhatman Last post: AstroDarkSky	9	595	Oct 1, 2022
Cygnus has another Soap Bubble! Acquisition Deep Sky Planetary Nebula Dark Matters Astrophotography Last post: John Hayes	4	571	Aug 13, 2022
M56 & M57 in a single Frame William Optics CAT Series M56 M57 Messier Objects +2 Craig Bobchin Last post: Craig Bobchin	2	73	Aug 12, 2022
What is this? A ring, spaceship? Introductions NGC6543 Planetary Nebula +2 yuren892 Last post: Mario Keller	11	707	Jun 12, 2022
How to stack images with very few stars? Luc Coiffier DeepSkyStacker (DSS)Processing Stacking +2 Abhijit Juvekar Last post: Tony Gondola	9	627	May 21, 2022
PN's? Beginner Planetary Nebula Neil Dunn Last post: Neil Dunn	4	172	Jan 8, 2022
Processing challenge - M57 Processing Collaboration Deep Sky +2 Connor Matherne Last post: Steve Cooper	16	751	Nov 12, 2021
M27 103 hours, Free Data, Please process and post! Processing Deep Sky M27 +2 Mike Last post: Jeff Kisslinger	69	4.8k	Jul 30, 2021
Please help identify this 'Mystery Object' - seeking images near the Helix Nebula from 12 Sep 2020 Introductions NGC7293 NGC Objects +2 Gary JONES Last post: Gary JONES	27	1.4k	Jul 23, 2021
Observations of HD 144543 NGC6058 NGC Objects Deep Sky +2 andrea tasselliFrequent contributor	0	32	May 3, 2021
Getting my nebulas to shine Processing Request for feedback Sh2-174 +1 Torben van Hees Last post: DarnitsCloudy	17	713	Apr 4, 2021
Warped stars - only on long exposures Equipment M97 Messier Objects +2 Steffen Last post: Steffen	7	182	Mar 3, 2021
Equipment question! Equipment Beginner M27 +2 NyrKorey Last post: NyrKorey	12	401	Aug 24, 2020
Question to Resampling in PI Processing Deep Sky M57 +1 Uwe Deutermann Last post: Bogdan Borz	6	287	Apr 19, 2020
Hello from France Introductions M27 Messier Objects +2 Brice Blanc	0	32	May 30, 2017

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