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M31 - Andromeda Galaxy by Sebastian Hartmann

Identifying and fixing image artifacts and anomalies.

Showing 1-50 of 306

	Replies	Views	Created
Is this a record??? LOL Acquisition Artifacts Satellite Daniel Cimbora Last post: Brian Puhl	12	428	2 days ago
Strange grainy artifacts in background when applying NXT - normal or error? Processing Noise Reduction Duo-Narrowband +3 Derek Vasselin Last post: Tim Ray	5	93	3 days ago
Circular artifact in WBPP processed image, suspect flat frame issue Calibration Artifacts Help Needed +1 Catalin Iordache Last post: Catalin Iordache	7	91	3 days ago
Are these halos caused by good seeing and diffraction patterns? Planewave CDK14 Seeing Conditions Optics +2 Anthony Grillo Last post: John Hayes	11	311	3 days ago
Strange decorative error after processing 47 subs with ZWO ASI183MC-Pro ZWO ASI183MC Background Extraction Processing +1 Steve Solon Last post: Steve Solon	6	89	5 days ago
Weird artifact in CLSCCD images that won't calibrate away Filters Filter Wheel Calibration +5 Leela.Astro.Imaging Last post: Scott Badger	8	126	8 days ago
QHY-268M Noisy with narrow band QHYCCD QHY268 M CMOS Artifacts +2 Roger Renberg Last post: Roger Renberg	7	159	9 days ago
Weird Artifacts when shooting with SCT Celestron EdgeHD 9.25"Artifacts Zhaoyu Xu Last post: Mark Fox	45	520	10 days ago
Possible meteor captured in 180 second exposure frame Artifacts IC63 Meteor JayBac Last post: JayBac	3	102	11 days ago
signal loss Processing Artifacts Deep Sky +1 astrojuanan Last post: astrojuanan	19	183	18 days ago
what kind of trail is this? Artifacts Satellite adrian-HG Last post: Bob Lockwood	9	184	20 days ago
Strange star trails? Acquisition Guiding Artifacts +1 Karel Schel Last post: Karel Schel	3	54	23 days ago
GHS stretching haze around stars while enhancing IFN in Deer Lick Group Processing Stretching Artifacts +2 Rabeea Alkuwari Last post: Tony Gondola	3	142	Aug 31, 2025
Artifacts or low SNR issue? Noise Reduction Request for feedback Artifacts +1 Bo Chen Last post: Bo Chen	23	262	Aug 26, 2025
Jumping stars in my light frames Sky-Watcher Star Adventurer GTi Acquisition Artifacts +2 Adrimt33 Last post: Read noise Astrophotography	7	251	Aug 23, 2025
Dark vertical streaks in stacked image Equipment Artifacts Help Needed Richard Carande Last post: Richard Carande	15	357	Aug 21, 2025
Is this what I think it is? Drizzle Processing Artifacts +2 Tony GondolaFrequent contributor Last post: Tony Gondola	18	648	Aug 20, 2025
Help needed with a puzzle -- odd effect around star WR 153ab within the Lion Nebula Acquisition Artifacts Deep Sky +2 Lee Pullen Last post: Lee Pullen	15	264	Aug 16, 2025
Do you know what is wrong with my image capture? Acquisition Request for feedback Artifacts +1 astrob Last post: astrob	10	392	Aug 15, 2025
Stars Have Orbs and overall better processing. Processing Artifacts Deep Sky Duncan Hathaway Last post: Duncan Hathaway	23	674	Aug 9, 2025
Help, strange artefacts in my images… ZWO ASI2600MM Pro ZWO ASI6200MM Pro Equipment +2 Paul Last post: Paul	16	379	Aug 3, 2025
What's this? Processing Optics Deep Sky +2 Tony GondolaFrequent contributor Last post: andrea tasselli	18	504	Jul 31, 2025
Smears on the SVbony 550 80mm image SVBony SV550 80mm Triplet APO Artifacts Troubleshooting Catakraken Last post: TiffsAndAstro	5	207	Jul 14, 2025
Odd speckles in flat files Acquisition Deep Sky Artifacts Craig Dixon Last post: ScottF	9	324	Jul 11, 2025
Fixing scattered light issue Russell Croman Astrophotography StarXTerminator Steffen Hirtle GraXpert Processing +2 Jure Menart Last post: andrea tasselli	9	322	Jun 28, 2025
Any idea what's causing this? Processing Deep Sky Help Needed +1 Ken Potts Last post: Ken Potts	7	200	Jun 26, 2025
Display settings for PI, to eliminate the display quantization error. Pleiades Astrophoto PixInsight Processing Artifacts Chris White- Overcast Observatory Last post: Chris White- Overcast Observatory	8	719	Jun 21, 2025
Star shapes Apertura 8" RC Apertura 8" f/8 Ritchey-Chretien Carbon Fiber Artifacts Troubleshooting Derek Mellen Last post: sebaromano	12	496	Jun 15, 2025
Might This Be a Light Leak? Processing Solar System Artifacts +1 Jerry GerberFrequent contributor Last post: Jerry Gerber	4	138	Jun 12, 2025
Squiggles Farpoint Bahtinov Mask Artifacts Help Needed Tony Barlow Last post: Blue	9	251	Jun 7, 2025
Red/Green/Blue Pixels in Master Lights?? Processing Deep Sky Artifacts +1 David Ebbecke Last post: bigCatAstro	11	230	Jun 7, 2025
Gradiente? Rumore? … Non capisco.. Sky-Watcher Quattro 250P / 10-S Acquisition Deep Sky +1 Luigi Ferrari Last post: andrea tasselli	14	316	Jun 1, 2025
Star shape error Acquisition Deep Sky Artifacts +1 ed bat Last post: Dean Jacobsen	17	490	May 28, 2025
Help with diffraction-like spikes - blue channel only William Optics Redcat 51 ZWO ASI2600MM Pro Processing +2 David Ebbecke Last post: David Ebbecke	7	216	May 28, 2025
Camera Banding? Can anybody tell me what and why this is? Sony IMX571 (mono)CMOS Artifacts Anderl Last post: Oskari Nikkinen	6	328	May 13, 2025
Rings in image? Askar 103APO Dew Heater Acquisition +2 Konstantin Last post: andrea tasselli	30	794	May 12, 2025
HELP, why does this keep happening with my dust motes? Acquisition Calibration Deep Sky +1 Oscar Last post: Oscar	12	462	May 9, 2025
(RCC) Vignetting? Request for feedback Troubleshooting Artifacts DavesView Last post: Miguel T.	14	244	Apr 29, 2025
Artefacts in stacked image. ZWO ASI585MC Pro Processing Calibration +2 MFarq Last post: MFarq	16	527	Apr 23, 2025
Help finding source of light reflections Equipment Artifacts Help Needed Christopher Ventura Last post: Christopher Ventura	2	104	Apr 19, 2025
What could cause the RGB misalignment in the bottom right? Acquisition RGB Deep Sky +1 AmyWarble Last post: Ian McIntyre	8	278	Apr 17, 2025
Strange grid / stains pattern in background Processing Stacking Deep Sky +1 Konrad Krebs Last post: andrea tasselli	6	203	Apr 7, 2025
"Eyeshadows" on the stars ? ZWO ASI585MC Pro Steffen Hirtle GraXpert Siril Team Siril +2 Reiner A. Merz Last post: Reiner A. Merz	6	302	Mar 25, 2025
Problem identifying what my artefact problem is.... Processing Deep Sky LDN1148 +2 Christian Bennich Last post: andrea tasselli	55	1.1k	Mar 24, 2025
Looking for the cause of OTA internal reflexions ZWO ASI294MC Pro Acquisition Broadband +2 patrice_so Last post: Mikko Jokela	46	1.3k	Mar 20, 2025
How to avoid guiding on reflections in the OAG within PHD2? (Gif of the issue included) Open PHD Guiding Project PHD2 Guiding Troubleshooting +1 Ashraf AbuSara Last post: Paul Homer	15	584	Mar 17, 2025
Can't tell if this red is artifact or is really there... Processing Deep Sky Galaxy +1 Harry Karamitsos Last post: Scott Badger	4	237	Mar 11, 2025
Coma Corrector Chromatic aberration Equipment Coma Artifacts Gabriel Wiklund Last post: Gabriel Wiklund	4	78	Mar 7, 2025
Was this a plane? Artifacts Médéric Hébert Last post: Ian McIntyre	15	619	Feb 27, 2025
Noise on sensor when cooled to max ZWO ASI294MC Pro Cooling Artifacts Niels_L Last post: Arun H	6	165	Feb 23, 2025

Showing 1-50 of 306