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M15 by Gerould Kern

Identifying and fixing image artifacts and anomalies.

Showing 1-50 of 317

	Replies	Views	Created
Strange artifact in images with Askar 120 APO setup Sky-Watcher EQ6-R Pro LRGB Artifacts +2 Juan Pablo De la Cruz Last post: Juan Pablo De la Cruz	3	130	4 days ago
Mysterious star trailing solved: a cautionary tale of fan vibration with a fan cooled (especially ZWO) camera. ZWO ASI2600MC Pro Equipment Cooling +2 Rick Veregin Last post: Rick Veregin	23	492	7 days ago
Star-trails stacking Artifacts David Tyrrell Last post: David Tyrrell	4	63	7 days ago
Did I caught a meteor train? ZWO Seestar S50 Artifacts Comet +1 Jean-David Gadina Last post: Tony Gondola	11	242	24 days ago
Blue halos around stars after LRGB combining in PixInsight Artifacts Troubleshooting Georg N. Nyman Last post: Brian Puhl	7	151	26 days ago
Can someone help me identify this object ? Acquisition LRGB Deep Sky +1 Hans C Last post: Hans C	6	220	Oct 20, 2025
Diagnostic help, please Filters Filter Wheel Calibration +5 Michael Urvina Last post: Grigory2020	13	234	Oct 19, 2025
What sensors still exist that give lovely microlens diffraction spikes on stars? Equipment CCD CMOS +3 codwyer	0	82	Oct 13, 2025
Starspikes reduction Equipment Reflectors Optics +1 Lalo Juarez Last post: Alex Nicholas	2	51	Oct 11, 2025
How to identify bad darks? Calibration Dark Frames Artifacts +1 Arny Last post: Craig Towell	2	78	Oct 8, 2025
Bayer-like checkered pattern on mono subs ZWO ASI1600MM CMOS Monochrome +3 André Moleiro Last post: Ani Shastry	4	202	Oct 5, 2025
Is this a record??? LOL Acquisition Artifacts Satellite Daniel Cimbora Last post: Javier Reglero	16	715	Oct 1, 2025
Strange grainy artifacts in background when applying NXT - normal or error? Processing Noise Reduction Duo-Narrowband +3 Derek Vasselin Last post: Tim Ray	5	114	Sep 29, 2025
Circular artifact in WBPP processed image, suspect flat frame issue Calibration Artifacts Help Needed +1 Catalin Iordache Last post: Catalin Iordache	7	99	Sep 29, 2025
Are these halos caused by good seeing and diffraction patterns? Planewave CDK14 Seeing Conditions Optics +2 Anthony Grillo Last post: John Hayes	11	374	Sep 29, 2025
Strange decorative error after processing 47 subs with ZWO ASI183MC-Pro ZWO ASI183MC Background Extraction Processing +1 Steve Solon Last post: Steve Solon	6	92	Sep 27, 2025
Weird artifact in CLSCCD images that won't calibrate away Filters Filter Wheel Calibration +5 Leela.Astro.Imaging Last post: Scott Badger	8	130	Sep 24, 2025
QHY-268M Noisy with narrow band QHYCCD QHY268 M CMOS Artifacts +2 Roger Renberg Last post: Roger Renberg	10	268	Sep 23, 2025
Weird Artifacts when shooting with SCT Celestron EdgeHD 9.25"Artifacts Zhaoyu Xu Last post: Mark Fox	45	536	Sep 22, 2025
Possible meteor captured in 180 second exposure frame Artifacts IC63 Meteor JayBac Last post: JayBac	3	105	Sep 22, 2025
signal loss Processing Artifacts Deep Sky +1 astrojuanan Last post: astrojuanan	19	185	Sep 14, 2025
what kind of trail is this? Artifacts Satellite adrian-HG Last post: Bob Lockwood	9	186	Sep 12, 2025
Strange star trails? Acquisition Guiding Artifacts +1 Karel Schel Last post: Karel Schel	3	58	Sep 9, 2025
GHS stretching haze around stars while enhancing IFN in Deer Lick Group Processing Stretching Artifacts +2 Rabeea Alkuwari Last post: Tony Gondola	3	144	Aug 31, 2025
Artifacts or low SNR issue? Noise Reduction Request for feedback Artifacts +1 Bo Chen Last post: Bo Chen	23	264	Aug 26, 2025
Jumping stars in my light frames Sky-Watcher Star Adventurer GTi Acquisition Artifacts +2 Adrimt33 Last post: Read noise Astrophotography	7	257	Aug 23, 2025
Dark vertical streaks in stacked image Equipment Artifacts Help Needed Richard Carande Last post: Richard Carande	15	359	Aug 21, 2025
Is this what I think it is? Drizzle Processing Artifacts +2 Tony GondolaFrequent contributor Last post: Tony Gondola	18	656	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	265	Aug 16, 2025
Do you know what is wrong with my image capture? Acquisition Request for feedback Artifacts +1 astrob Last post: astrob	11	451	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	388	Aug 3, 2025
What's this? Processing Optics Deep Sky +2 Tony GondolaFrequent contributor Last post: andrea tasselli	18	506	Jul 31, 2025
Smears on the SVbony 550 80mm image SVBony SV550 80mm Triplet APO Artifacts Troubleshooting Catakraken Last post: TiffsAndAstro	5	215	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	324	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	727	Jun 21, 2025
Star shapes Apertura 8" RC Apertura 8" f/8 Ritchey-Chretien Carbon Fiber Artifacts Troubleshooting Derek Mellen Last post: sebaromano	12	502	Jun 15, 2025
Might This Be a Light Leak? Processing Solar System Artifacts +1 Jerry Gerber Last post: Jerry Gerber	4	138	Jun 12, 2025
Squiggles Farpoint Bahtinov Mask Artifacts Help Needed Tony Barlow Last post: Blue	9	252	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	319	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	334	May 13, 2025
Rings in image? Askar 103APO Dew Heater Acquisition +2 Konstantin Last post: andrea tasselli	30	795	May 12, 2025
HELP, why does this keep happening with my dust motes? Acquisition Calibration Deep Sky +1 Oscar Last post: Oscar	12	463	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 Mark Vickers Last post: Mark Vickers	16	528	Apr 23, 2025

Showing 1-50 of 317