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Crescent & Soap bubble nebula in the Cygnus region by Charles Robert

Imaging specific emission lines with narrow bandpass filters.

Showing 1-50 of 246

	Replies	Views	Created
Band shift vs more integration time Filters Acquisition H-alpha +2 Simone ScarpaNew contributor Last post: Bastiaan Feenstra	16	272	2 days ago
A broadband filter question about NB filters Filters Acquisition Broadband +5 Tim Ray Last post: Tim Ray	6	182	7 days ago
Incorporating Ha into RGB Images Pleiades Astrophoto PixInsight Processing H-alpha +2 Jakob K. Last post: Jakob K.	14	446	20 days ago
NGC7000 and IC5070 Processing Narrowband SHO +2 Dave Stearn Last post: Dave Stearn	11	277	Oct 23, 2025
Imaging narrowband versus a 'darker' sky location. Filters Acquisition LRGB +6 Pele Johnson Last post: Jaymz Bondurant	13	295	Oct 23, 2025
Is it a mistake to combine Ha-oiii 12nm with oiii-Sii 6nm filters? Acquisition Duo-Narrowband H-alpha +5 Gabriel Last post: Gabriel	6	153	Oct 18, 2025
Request for Data Collaboration of Sh2-174 Acquisition H-alpha Narrowband +4 Rodd Dryfoos Last post: Gamaholjad	18	432	Oct 14, 2025
Combining dual telescope setup data for narrowband imaging efficiency (Mono Ha/OIII + OSC L-Extreme) Optolong L-eXtreme Processing Stacking +2 Pranalabs Last post: Pranalabs	23	287	Oct 11, 2025
Baader high speed 6.5mm or 3.5mm Celestron RASA 8"ZWO ASI294MM Pro CMOS +3 Abdul Thomas Jnr Last post: Abdul Thomas Jnr	6	90	Sep 27, 2025
my 1st hubble palette attempts... Hubble Palette Group CMOS Filters Reducer +4 Larry Cable Last post: Larry Cable	3	145	Sep 25, 2025
Optolong L-Synergy first light Filters Duo-Narrowband Narrowband +1 Lorand Fenyes Last post: Gerassimos Arsenis	2	189	Sep 24, 2025
3nm vs 5nm filter choice for bortle 1-4 dark skies Acquisition Narrowband Riccardo Civati Last post: Ashraf AbuSara	23	745	Sep 21, 2025
[RCC] SHO M16 Current Version and Narrowband Processing Acquisition Processing Narrowband +2 Antha Adkins Last post: Antha Adkins	5	159	Sep 20, 2025
Adding Dual-Narrowband data to an OSC image Processing Narrowband One-Shot Color +2 Rene Matjanec Last post: Rene Matjanec	7	184	Sep 19, 2025
Umm… why am I getting so much signal in only 6 hours? B4.8 skies … 😅 Processing Stretching Narrowband +3 Read noise Astrophotography Last post: Read noise Astrophotography	16	697	Sep 6, 2025
Hoping for someone to explain some Pixelmath Acquisition Processing Narrowband +3 Quinn GroesslIOTD Staff Last post: Quinn Groessl	3	86	Aug 30, 2025
Keep or sell my Optolong filters? Filters Narrowband SHO +1 Tareq Abdulla Last post: Tareq Abdulla	4	157	Aug 22, 2025
Should I utilize Sii data for Crescent Nebula? If so, what are some good ways. Processing Narrowband SII +2 Paul Macias Last post: Oscar	3	146	Aug 21, 2025
When do you give up on Oiii or Sii in narrowband imaging? Acquisition Narrowband H-alpha +2 Tony Gondola Last post: Jan Erik Vallestad	9	470	Jul 31, 2025
Narrowband Issues Filters Acquisition Auto-Focusing +2 Mossyback Last post: Mossyback	4	176	Jul 29, 2025
NB Filter Bandwidth Requirements for Galaxy Imaging - AND- Announcing the Galaxy Studio on AIC Acquisition Narrowband Deep Sky +1 John HayesFrequent contributor Last post: John Hayes	3	293	Jul 6, 2025
Osc narrowband flats at F10 suggestions Celestron C6 Acquisition Calibration +2 TiffsAndAstro Last post: TiffsAndAstro	10	216	Jun 26, 2025
[RCC] NGC688 area Pleiades Astrophoto PixInsight Narrowband Request for feedback +1 Dirk Bausch Last post: Georg N. Nyman	10	467	Jun 22, 2025
[RCC] NGC 7000 Pleiades Astrophoto PixInsight Processing SHO +2 CoyoteAstro	0	111	May 27, 2025
What to do when your very first astro-image shows up on the NASA website? NASA Chandra X-ray Observatory Sky-Watcher EQ6-R Pro Narrowband +1 John Stone Last post: Read noise Astrophotography	3	213	Apr 29, 2025
Incredible Narrowband Survey for Finding New Targets Acquisition Narrowband Deep Sky The0s Last post: The0s	20	1.7k	Apr 19, 2025
ASI 2600 MM - recommended gain and exposure time for NB ZWO ASI2600MM Pro Askar FRA400 Narrowband +1 Leonardo Landi Last post: astrojuanan	45	1.7k	Mar 27, 2025
Choosing SHO filters for RASA 8 Celestron RASA 8"Equipment Filters +2 Tommi Liinalampi Last post: Tommi Liinalampi	15	295	Mar 13, 2025
Choosing Objects to Photograph Acquisition Narrowband Deep Sky +1 Jerry Gerber Last post: Timothy Martin	31	1.2k	Mar 12, 2025
Going IMX455 on a TOA-130 at a B1 site, which filters? Takahashi TOA-130 Filters Acquisition +2 John Stone Last post: Kyle Goodwin	3	184	Mar 8, 2025
Struggling with very dim targets ZWO ASI183MM Pro Acquisition Narrowband +2 Craig Dixon Last post: kvastronomer	17	666	Feb 17, 2025
Problem with Narrowband Normalisation in 1.9.2 Pleiades Astrophoto PixInsight ZWO ASI533MC Pro Optolong L-eNhance +1 Craig Dixon Last post: Craig Dixon	9	1.2k	Feb 7, 2025
Looking for Advice on SII & OIII Filters - Halo Issues with Askar D2 Equipment Filters Narrowband +1 Menelaos Last post: David Néel	12	327	Jan 29, 2025
Stuck on Next Steps for My Astrophotography Setup – Need Input! Optolong L-eXtreme Equipment Narrowband +2 akshay87kumar Last post: Ancient.Photon	22	839	Jan 26, 2025
[RCC] Rosette Nebula in SHO/Foraxx Pleiades Astrophoto PixInsight Processing Narrowband +1 Jan Ossowski Last post: Jan Ossowski	7	563	Jan 13, 2025
How to separate channels from the Antlia Quad Band in PI Antlia Quad Band Anti-Light Pollution Filter 2" Mounted Narrowband OIII +2 Keith Geissler Last post: Franklin Marek	8	411	Dec 31, 2024
What is the colour of OIII? Processing OIII Narrowband +1 Willem Jan Drijfhout Last post: Adam Drake	28	1.6k	Dec 28, 2024
PixInsight 1.9.0 MultiscaleGradientCorrection for narrowband missing SII and OIII data in MARS? Filters Processing Narrowband +1 Tom Zepf Last post: pfile	1	181	Dec 22, 2024
[RCC] IC1805 in SHO Narrowband Request for feedback Kartik Madhira Last post: Dean Linic	2	114	Nov 27, 2024
Narrowband Exposure Lengths vs. Swamping Read Noise ... help! CMOS Acquisition Narrowband +1 John Stone Last post: John Stone	20	1.1k	Nov 6, 2024
[RCC] Heart Nebula: Narrowband normalization ZWO ASI294MC Pro Processing HOO +2 akshay87kumar Last post: Tony Gondola	12	478	Oct 26, 2024
Beyond Dual Band Filters Acquisition Narrowband +1 Tony Gondola Last post: Tony Gondola	8	495	Oct 14, 2024
New Script: PhotometricContinuumSubtraction -- Pixinsight Pleiades Astrophoto PixInsight Processing Narrowband +1 Charles HagenIOTD Staff Last post: Noah Tingey	48	5.1k	Oct 2, 2024
What should I do with my H-II data? Processing Narrowband One-Shot Color +1 Paul Lloyd Last post: Jeff Reitzel	14	524	Sep 21, 2024
A basic science question about emission nebulae --Pelican, North American etc. Narrowband Off-topic Emission Nebula Tim Hawkes Last post: Tim Hawkes	12	622	Sep 20, 2024
Ha 5nm vs 3nm and the missing NII signal. Any examples? Filters Acquisition Narrowband +2 Ashraf AbuSara Last post: Arun H	21	522	Sep 19, 2024
Can Someone Explain using Luminance Filter in High Bortle? William Optics Redcat 71 Processing Narrowband +2 Vinny Vent Last post: Brian Diaz	8	566	Sep 14, 2024
Data quality? Processing Stacking Narrowband +1 Sean Mc Last post: Tony Gondola	5	208	Sep 13, 2024
Narrowband color mapping Processing SHO Narrowband +2 Arun H Last post: Arun H	19	673	Sep 10, 2024
Focus change using narrow-band filters Filters Acquisition Narrowband +1 Tony Gondola Last post: Bill McLaughlin	11	452	Sep 7, 2024

Showing 1-50 of 246