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M27 The Dumbbell Nebula by Hans-Åke Karlsson

Dealing with and advocating against artificial light interference.

Showing 1-50 of 94

	Replies	Views	Created
Umm… why am I getting so much signal in only 6 hours? B4.8 skies … 😅 Processing Stretching Narrowband +3 Read noise AstrophotographyFrequent contributor Last post: Read noise Astrophotography	16	691	26 days ago
A shocking idea which will ruin Astro darkness Light Pollution Off-topic Carastro Last post: Simon	21	837	Aug 23, 2025
Keep or sell my Optolong filters? Filters Narrowband SHO +1 Tareq Abdulla Last post: Tareq Abdulla	4	153	Aug 22, 2025
Article on Light Pollution Light Pollution Jerry GerberFrequent contributor Last post: JohnHen	3	253	Aug 11, 2025
Light Pollution Light Pollution Off-topic Jerry GerberFrequent contributor Last post: Steven Fanutti	11	370	Jul 23, 2025
flats overcorrecting in siril? Siril Team Siril DSLR Light Pollution klm Last post: Ralph Woodin	35	986	Jun 26, 2025
Light Leaks Reflectors Acquisition Light Pollution +1 andrea tasselliFrequent contributor	0	157	May 10, 2025
Recording ambient Skyglow as Dark Frames? Acquisition Dark Frames Light Pollution +1 Abhijit Juvekar Last post: John Hayes	3	107	Apr 30, 2025
Privacy Screen Recommendations Equipment Dark Site Light Pollution Steven Fanutti Last post: Alan Brunelle	8	254	Dec 21, 2024
What is the target faintness limit for city skies? Optolong L-Pro Acquisition Light Pollution +2 Konstantin Dzuin Last post: Kevin Galka	21	569	Dec 10, 2024
A PSA/Rant/Warning/Opinion on CLS Filters, Light Pollution Filters, and Tri or Quad Bandpass Filters Equipment Light Pollution Filter Filters +1 C.Sand Last post: AstroÅmazer	63	2.4k	Dec 3, 2024
Deep sky imaging during an Aurora… keep subframes or throw them out? Pleiades Astrophoto PixInsight Steffen Hirtle GraXpert Acquisition +2 Robert Lowenthal Last post: Robert Lowenthal	12	345	Oct 11, 2024
Imaging from Bortle 8/9 Urban Astronomy Light Pollution Ajith Everester Last post: Rob Johnson	40	959	Sep 30, 2024
Exposure time? Optec Lepus HD - C8 EdgeHD Optolong L-Pro Light Pollution Filter +1 Hermann Pais Last post: Tony Gondola	8	270	Sep 29, 2024
Gain vs light pollution vs full well? ZWO ASI294MM Pro CMOS Acquisition +2 Sean Mc Last post: Arun H	4	267	Sep 14, 2024
Chance to spend a couple of nights in Bortle 1/2; what's best to focus on? Acquisition Dark Site Light Pollution +1 Rostokko Last post: Rostokko	16	489	Jun 4, 2024
What filter should I get? I want to photograph Reflection Nebulae and Galaxies with my OSC camera from a lightpolluted place. looing for a L-enhance for broader band tragets Optolong L-eNhance ZWO ASI2600MC Pro Equipment +2 Jens Last post: Markus Selbach	5	203	May 30, 2024
17 things I did during the last year to greatly improve my astrophotography Stefan Berg Nighttime Imaging 'N' Astronomy (N.I.N.A. / NINA)Backyard Astrophotography Light Pollution +2 Francois Theriault Last post: Dave Rust	19	1.5k	May 22, 2024
Deep Sky Imaging from Bortle 8 - 9? QHYCCD QHY268 C Acquisition Urban Astronomy +2 Ralph Ford Last post: shenmesaodongxia	29	1.5k	Feb 29, 2024
Light pollution - New research reveals why insects are really attracted to lights Light Pollution Off-topic Joon Ren Last post: Alien_Enthusiast	13	563	Feb 13, 2024
Light pollution map application Light Pollution Dark Site Fischi Fischi Last post: Fischi Fischi	8	578	Jan 22, 2024
Chroma 8nm Ha, 5nm Sii/Oiii vs Antlia 3nm SHO 50mm round filters Equipment Filters Narrowband +2 Ashraf AbuSara Last post: Ashraf AbuSara	2	244	Jan 8, 2024
Is climate change impacting your astrophotography? Light Pollution Weather Off-topic Brian Boyle Last post: Monty Chandler	32	1.7k	Dec 7, 2023
What about astrophotography keeps you guys hooked? Dark Site Light Pollution Carl Elgario Last post: Francesco	4	147	Dec 1, 2023
starter filters Broadband under Bortle 7/8/9 Light Pollution Urban Astronomy Beginner Julien Cheung Last post: Christian Hilbert	2	79	Oct 8, 2023
Neighbour porch light Acquisition Light Pollution Urban Astronomy +1 Sean Mc Last post: Isa's Astrophotography Atelier	26	1.6k	Aug 11, 2023
Stars exposure length Light Polluted skies Light Pollution Urban Astronomy Tareq Abdulla Last post: Tareq Abdulla	11	246	May 31, 2023
Stars exposure length Broadband under Bortle 7/8/9 Light Pollution Urban Astronomy Tareq Abdulla Last post: Tareq Abdulla	10	247	May 31, 2023
Would it be a good idea to use an L-Eenhance for the lyrid meteor shower, from bortle 8? Optolong L-eNhance Acquisition Light Pollution +2 Tomás Andonie Last post: Nicolas Molina	2	189	Apr 21, 2023
Clear Skies Light Pollution Introductions noon Last post: Nick Grundy	1	122	Apr 4, 2023
Avant de faire un mauvais choix Askar FMA180 Light Pollution Buying Advice podline6 Last post: Jeffbax Velocicaptor	12	477	Mar 17, 2023
Streetlight Lightpollution Light Pollution Backyard Astrophotography Daniel Renner Last post: Joe Linington	27	1.1k	Mar 2, 2023
using L-pro filter with mono L-R-G-B filters together? Optolong L-Pro Acquisition Light Pollution +2 Yuval Last post: Alan Hancox	6	511	Feb 21, 2023
International Dark-Sky Association New Mexico Imagers Light Pollution Outreach John Adler Last post: Kevin	3	45	Feb 11, 2023
Carte de pollution lumineuse France spéciales (crise énergétique) / France's Light pollution map 2023 ("energy crisis") Light Pollution Français Frédéric Tapissier Last post: Samuel Kohler	2	622	Feb 10, 2023
Pondering a New Pursuit Light Pollution Dark Site Off-topic Jerry GerberFrequent contributor Last post: Ian Dixon	25	1.6k	Feb 7, 2023
Falling Stars that cant be seen with the naked eye Dark Site Light Pollution Off-topic Gamaholjad	0	165	Jan 20, 2023
Imaging in the near infrared to avoid light pollution Filters Acquisition Light Pollution +1 matt113d Last post: alexbb	2	206	Dec 15, 2022
Iris Nebula Under 82.5% Moon- People are afraid of the moon! Don't be afraid of the moon!!! Acquisition Light Pollution Solar System +2 Chris White- Overcast Observatory Last post: Jeff Kisslinger	25	1.5k	Oct 7, 2022
Imaging with Light Pollution Guide- Part 1 Acquisition Light Pollution Urban Astronomy +2 Rouz Astro Last post: Rouz Astro	2	393	Sep 25, 2022
My latest high-tech light leak gadget Sky-Watcher Explorer 200PDS ZWO ASI1600MM Pro Dark Frames +1 Andy Wray Last post: Lamplighter05	1	262	Aug 24, 2022
Tips for fighting light pollution (needed) Acquisition Light Pollution Urban Astronomy +1 matt113d Last post: dkamen	11	580	Aug 10, 2022
Raise awareness about the importance of dark skies Light Pollution Dark Site Off-topic gfunkernator Last post: gfunkernator	11	496	Aug 10, 2022
Gradient removal in mono data (luminance channel) Aries Productions Astro Pixel Processor (APP)Processing Gradient Removal +2 Christian Koll Last post: Rod Hughes	6	537	Jun 23, 2022
Moon and Milky way Light Pollution Dark Site Introductions Christian_Trezzi	0	50	Jun 6, 2022
Milky way Light Pollution Beginner Italiano Christian_Trezzi Last post: andrea tasselli	4	133	Jun 6, 2022
Lugares de observación Light Pollution Dark Site Español Daniel Arenas Last post: ASTROMAK_42	6	529	Apr 17, 2022
What’s your Bortle’s sky scale! Light Pollution Daniel Arenas Last post: Daniel Arenas	15	902	Apr 14, 2022
General Light Pollution Filter for Bortle 3? Optolong L-Pro Light Pollution Filter Acquisition +2 Piers Palmer Last post: Wes Schwarz	27	1.1k	Mar 24, 2022
Bortle 3 Dark Site Light Pollution Off-topic Chris Last post: Chris	3	442	Feb 12, 2022

Showing 1-50 of 94