View allAll Photos Tagged astropixelprocessor
This complex of reflection nebulae lies some 6,000 light-years away, in the constellation Cygnus.Obscuring interstellar dust clouds appear in silhouette against reddish hydrogen emission nebulae, along with the dusty blue reflection nebulae. Ultraviolet radiation from the massive, hot, young stars of the extensive Cygnus OB2 association ionize the region's atomic hydrogen gas, producing the characteristic red glow as protons and electrons recombine. Embedded Cygnus OB2 stars also provide the blue starlight strongly reflected by the dust clouds.
Telescope: Esprit 100 APO refractor.
Camera: QHY16200 CCD @-10 (RGB) and -20C (Ha).
28x 300sec Red filter
24x 300sec Green filter
28x 300sec Blue filter
23x 900sec H-alpha filter (6nm)
(12.4 hrs total integration time)
Ha Imaged on 20/5, 8/6, 27/7,28/7,30/7 2017.
RGB Imaged on 4/4, 5/4, 28/7, 29/7 2019.
Processed with AstroPixelProcessor and Pixinsight.
Knight Observatory, Tomar
One of my favorite targets - the integrated flux nebula (IFN) or galactic cirrus is faint dust illuminated by our galaxy, and there happens to be a nice concentration of it in the direction of Bode's Nebulae (Bode's (M 81) and Cigar (M 82) Galaxies). The Angel Nebula, which is made of IFN, is in the lower left corner. This is an improvement over my last attempt at this target - shooting raw and more integration time made a difference.
Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 78 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Feb. 21, 2020 under Bortle 3/4 skies.
Nov 2020 update: The color of M 81 on my original version had always irked me a bit. I reprocessed it and now M 81's color is much better (in my opinion).
32 * 88 secs at ISO 1600, f6.1 - unguided tracking.
Although there is a degree of trailing on the stars, it's a pleasing result given that the lens is at 200mm, so a 400mm FF equivalent. (OLYMPUS M.75-300mm F4.8-6.7 II)
Used the Skywatcher Star Adventurer for tracking & Pole Master for polar alignment. Astro Pixel Processor for all the image calibration, only jpg as still learning software (lights and darks only) then export to Photoshop.
The 48 panel version does not show the Veil nebula so i decided to extend to 8x8 panels. This 16 panel (2x8) strip shows 2 main "attractions". This version is made with single 15 minute exposures using a 6nm Ha filter. (QHY16200/ Esprit 100 on GM2000 unguided) Software: Sequence generator pro/ Astro Pixel Processor.
Image reduced to 25%.
Knight Observatory, Tomar
> The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs) away from Earth in the constellation Ursa Major.
This is a stack of 60 images captured with a Nikon Z7ii, SkyWatcher Esprit 100 scope, and the HEQ5 Pro tracking mount. PHD2 software was used for guiding.
This image was made from 60x180s exposures at ISO 800, plus 20 darks and 40 flats stacked in AstroPixelProcessor and edited in Photoshop.
Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 41 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken Jan 10, 2019.
This is a reprocess of data from earlier in the year - this time I used the 'remove light pollution' and 'HSL selective color' tools of Astro Pixel Processor after integrating light frames in DSS and before editing in GIMP. Also, my flats were introducing artifacts so I didn't use them, but instead corrected vignetting with the 'remove light pollution' tool.
I'm much happier with this version - the color and definition of the nebula are much better, and seem to be accurate in comparison with other images.
NGC7882 is a large Emission Nebula in Cepheus, whilst I tried to obtain some OIII data, there appears to be very little OIII Data within this particular target. NGC7822 lies approximately 2900 light years from Earth and spans somewhere in the region of 100 light years across, there are a number of "Pillars of Creation" scattered throughout this large nebula.
RA: 00h01m08.59s
Dec: 67°25'17.00"
Constellation: Cepheus
Designation: NGC7882 / Sharples 171
Image Details: 101x300S at Gain 100
Darks: 101 Frames
Flats: 101 Frames
Bias: 101 Frames
Acquisition Dates: Nov. 3, 2020 , Nov. 4, 2020 , Nov. 5, 2020 , Nov. 6, 2020 , Nov. 7, 2020
Total Capture time: 8.4 hours
Equipment Details:
Imaging Camera: ZWO ASI6200MC Pro 62mpx Full Frame OSC
Imaging Scope: SharpStar 15028HNT Hyperboloid Astrograph
Guide Camera: StarlightXpress Lodestar X2
Guide Scope: 365Astronomy 280mm Guide Scope
Mount: Sky-Watcher EQ8 Pro
Focuser: Primalucelab Sesto Senso V2
Filter: Optolong L-eXtreme Dual Band Filter
Power and USB Control: Pegasus Astro USB Ultimate Hub Pro
Acquisition Software: Main Sequence Software. Sequence Generator Pro 3.2
Calibration and Stacking: Astro Pixel Processor
Processing Software: PixInsight 1.8.8 and EZ Processing Suite for Star Reduction
Fujifilm X-T10, Samyang 135mm f/2.0 @ f2.0, ISO 1600, 60 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken October 26 under Bortle 3/4 skies.
The faint haze on the right edge is integrated flux nebulae (IFN).
Nov. 2020 update: Tweaked color.
The Rosette Nebula (NGC 2244).
> The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter. — Wikipedia
Stack of 20 exposures 3 minutes long at ISO 1600. Stacked in AstroPixelProcessor, and edited in Photoshop. I think this is a little grainy due to the higher ISO and using LENR instead of darks.
I used a SkyWatcher Esprit 100 telescope on a HEQ 5 Pro tracking mount, and the Nikon z 50.
43x 600 sec( 7.2 hrs). through 6nm Ha filter and Esprit 100 refractor/ QHY16200 CCD camera @ -20C. On 17,18,19 and 20 November 2017.
Knight Observatory, Tomar
VdB 14 & 15 (left in the picture) are two very beautiful reflection nebulae, which also contain a few reddish emission components and belong to an even larger dust cloud in the inconspicuous constellation Camelopardalis. VdB 15 is the larger, lower area of the nebula and surrounds the star CE Cam, a variable supergiant. VdB 14, the upper part of the nebula, is located near the star CS Cam, which is also a supergiant. The distance to earth is around 3,000 lightyears.
The open star cluster Stock 23 can be found on the right in the picture and is also a nice object for visual observation. Its distance is estimated at 1,240 lightyears and it is surrounded by several spectacular dark clouds. It is embedded in the large but faint emission nebula SH2-202, which extends over the entire right half of the picture.
Equipment:
Celestron RASA 8 f/2
Celestron Motorfocuser
EQ6-R Pro
ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)
RGB (no filter): 300 × 30″ (2h 30′)
RGB (IDAS LPS-D3 Filter): 260 × 120″ (8h 40′)
TS 2600 MP Mono (Gain 100, Offset 50, -10°)
Ha: (Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 130 x 60 (2h 10')
Total: 13h 20'
Flats, Darkflats, Dithering
N.I.N.A., Guiding with ZWO ASI 120MM and PHD2
Astropixelprocessor, Photoshop, Pixinsight
Date: November 23, December 8 & 15, 2022
Location: Hannover, Germany (Bortle 5-6)
COBS (Comet OBSveration database) contributions indicates that C/2021 Leonard had a significant outburst just prior to its recovery in the evening sky on December 15/16 2021. The comet flared to mag 3.5 and then quickly subsided to mag 5 by December 18. These three images were captured with a Vixen VSD 100 mm telescope and a Nikon Z7II camera mounted on a Vixen SXP. About 2.5 minutes of images were acquired with subs and stacked with AstroPixelProcessor and finished with Photoshop. With clouds and haze in Tucson and Comet Leonard gaining altitude each day the differences shown are not normalized and are a qualitative product of the captures.
40 exposures, each 360 sec. Explore Scientific ED102 102mm f/7 refractor, ZWO ASI294MC camera, H-alpåha filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor and Lightroom
RCW is an oval shaped emission nebula in the Constellation Norma created by the Wolf Rayet star HD 147419
The region is blanketed in HAlpha emission. In an effort to pick up OIII emissions I integrated nearly three times as much data in OIII as in Ha to produce this image
Total integration 19 hours collected over 5 nights
15 hours in OIII and 4 hours in H alpha ( 10 minute subs)
Equipment
Sharpstar Z4
HEQ5
ZWO ASI 533 MM pro
Antlia 3 nm H alpha Filter
Optolong 3 nm OIII Filter
ASIAR
Software
ASIAIR
AstropixelProcessor
PixinSight
Photoshop CS6
Processing notes-
Ha and OIII data processed independently
Stack
GradientCorrection
BlurX (Correct Only)
Starnet++
Nebula
Blemish Blaster (OIII only)
BlurX
Noise X
GHS
CurvesTransformation
Stars
Setiastro StarStretch script
Stars combined with
PixelMath
HOO image created using ChannelCombination
SelectiveColour
Minor tweaking in CS6
This wonderful dark nebula in Cepheus (Barnard 150 / LDN 1082) is commonly referred to as the "Seahorse Nebula", but in the orientation of my image, the structure reminds me much more of a mermaid, drifting through the cosmos with her long hair.
Its counterpart is played by an H-Alpha cloud, which already belongs to the adjacent "Flying Bat Nebula" (Sh2-129). To bring out this faint area, I captured 7 hours of Ha and then combined it with 10 hours and 24 minutes of RGB. I hope you like it!
Celestron RASA 8 f/2
Celestron Motorfocus
EQ6-R Pro
ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)
RGB: 326 × 60″ (5h 26′)
TS 2600 MP (Gain 100, Offset 200, -10°)
RGB: 51 × 60″ (5h 51′), 131 × 120″ (4h 22′), 70 × 10″ (11' 40'′)
Baader H-Alpha Highspeed 3.5nm: 210 × 120″ (7h)
Total: 17H 24′ 40″
Bortle 5 (19.50 SQM)
N.I.N.A., Guiding with ZWO ASI 120MM and PHD2
Astropixelprocessor, Photoshop, Pixinsight
Date: Nov. 1, 29 / Nov.29, 2019 /Dec. 27, 2019
Location: Amagi Highland, Shizuoka Pref., Japan / Asagiri Arena, Shizuoka Pref., Japan
Optics: SIGMA 135mm F1.8 DG HSM | Art (f/2.2)
Mount: SWAT-310 V-spec(single axis autoguiding)
Autoguider: QHY5L-II, LM75JC, PHD2
Camera: Canon EOS 6D (SEO-SP4)
ISO speed: 1600
Exposure: 30x180sec.x9panels
Processing: PixInsight, Astro Pixel Processor
Equipo: Star Adventurer - Canon 6D - Sigma 70/300 APO
50 lights - 19 darks - 100 bias
60s - f/6,3 - ISO 3200 - 190mm - 4000K
Procesado: AstroPixelProcessor - Lightroom
Messier 45, also known as the Seven Sisters or the Pleiades is an Open Cluster located in Taurus. It can easyly be seen in a starry autumn or winter night as a constellation of approx. five stars even with the naked eye.
Object: M 45 (Pleiades)
Optics: William Megrez 72ED F6 + Long Perng 0,6x Reducer
Mount: Sky-Watcher EQ6-R
Camera: ZWO ASI 183MM Pro @-20°C, Gain=53, Offset=10
Filter: ZWO EFW 7x36mm, ZWO 36mm Filters
Exposure: total ~7h, R 87x60sec, G 90x60sec, B 106x60sec, L 65x120sec, L (mixed from RGB), 200 Bias, 40 Darks, 60 Flats per channel
Date: 2018-11-16, 2018-11-17
Location: Schwaig
Capture: Sequence Generator Pro
Guiding: APM50 Image Master, ASI120MM, PHD2
Image Acquisition: Stephan Schurig
Image Processing: Stephan Schurig
AstroPixelProcessor 1.070: Calibration, Registration, Normalization, Integration, Channel Combination, Background Flattening & Calibration, Star Colors Correction, Auto Digital Development
Photoshop 20.0.1: Levels, Curves, Exposure (Offset, Exposure), Masked Nik Dfine 2 Denoise, Masked Dynamic (Dynamic, Saturation), Star Shrink, Masked Unsharp Masking, Masked HighPass Sharpening, Camera Raw Lens Correction (Distorsion, Chromatic Abberation), Cosmetic Background Repair
Altair Astro ED60 with 0.8x reducer/flattener @ f/4.8
ZWO ASI585MC OSC
60 x 60sec. subs. for a 4 pane mosaic (4 hrs.)
Processed with Astro Pixel Processor, GraXpert, NoiseXTerminator and Affinity Photo.
Date: 22:55~25:30JST Nov. 26, 2022
Location: Asagiri Arena, Shizuoka Pref., Japan
Cloud Coverage: < 5%
Temperature: 5.9C ~ 9.3C
Humidity: 69% ~ 84%
Wind: 2 ~ 8kt
Lens: SIGMA 135mm F1.8 DG HSM | Art (f/2.2)
Mount: RainbowAstro RST-135
Autoguider: QHY5L-II, LM75JC, PHD2
Camera: Canon EOS 6D (mod/SEO-SP4)
ISO speed: 1600
Exposure: 45x90sec.x3panels
Processing: PixInsight, AstroPixelProcessor
M82 (Cigar Galaxy) Edge on Galaxy found in the constellation of Ursa Major.
M: iOptron iEQ45-Pro
T: Celestron C8 SCT
C: ZWO ASI1600MC-Cooled
G: OAG and PHD2
GC: ZWO ASI220MM
RAW16; FITs
Temp: -10 DegC
Filter: No Filter
Gain 139; Exp: 18 x 120s
Frames: 18 Lights
Cal Frames: DarkFlats/Flats
Total Exposure: ~36 mins
90% Crop
Capture: NINA
Processed: APP; PS.
Sky: No moon, no breeze, no cloud.
Date: May.10 / Oct.2, 2021
Location: Amagi Highland, Shizuoka Pref., Japan
Optics: SIGMA 70mm F2.8 DG MACRO | Art (f/3.2)
Mount: RainbowAstro RST-135
Camera: Canon EOS 6D (mod/SEO-SP4)
ISO speed: 1600
Exposure: 15x120sec.x3panel + 12x150sec.x4panels
Processing: PixInsight, AstroPixelProcessor
Tonight the observing conditions with Tucson's persistent haze were better and the comet is a little higher and dusk comes a few minutes earlier for next two days. Tonight was the first time in the past days I could easily see green around the comet nucleus with my eyes. COBS reports the comet is in the mid 3s mag at th time of this capture. My impression is that Leonard is brighter tonight than the prior night.
This image is 35 x 4 sec stacked with AstroPixelProcessor and finished with Photoshop. The images were captured with a Vixen VSD 100 telescope on a Vixen SXP mount, with a Baader IR cur filter and a Nikon 7II camera.
Crescent Venus in daylight.
30 1/1000sec. exposures, Explore Scientific 102mm f/7 refractor, ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P, ASIAir controller, processed in Astro Pixel Processor, Lightroom, and Photoshop.
More information on how this photo was made:
Date: 21:10-28:15JST Oct.4, 2019
Location: Asagiri Highland, Shizuoka Pref., Japan
Cloud Coverage: 0 ~ 30%
Wind: 5 ~ 26 kt
Temperature: 13.9C ~ 17.8C
Humidity: 71 ~ 93%
Air pressure: 914hPa
Lens: SIGMA 135mm F1.8 DG HSM | Art (f/2.2)
Mount: SWAT-310 (single axis autoguiding)
Autoguider: QHY5L-II, LM75JC, PHD2
Camera: Canon EOS 6D (SEO-SP4)
ISO speed: 1600
Exposure: 15x180sec.x5panels
Processing: PixInsight, Astro Pixel Processor
This emission nebula is found in the constellation of Vulpecula, the Little Fox.
34*180 sec subs at ambient temperature. 102 mins total, then high altitude clouds rolled in.
Captured using Nebulosity and could not get the program to cool the camera :(
The telescope was the William Optic GT71 with the ASI183MM camera and Antlia 3.5nm filters.
Calibrated using lights, darks, flats and dark flats In APP.
Again, this was using the Avalon m-zero mount with only a rough PA.
Vacuum cleaner Galaxy (#M109) in LRGB mode. Around 10 hours of integration. This Galaxy is around 60 Million lightyears away from earth and has a diameter of 110 000 Lightyears. It was post-processed in Astropixelprocessor, Pixinsight and Photoshop.
Camera was #qhy268m
#C11 at 2000mm focal lenght
#EQ8R
#youresa
#astrophotography #longexposure
The Pacman Nebula, an emission nebula [NGC281] with open star Cluster [IC1590], may be seen in the constellation of Cassiopeia.
M: iOptron EQ45-Pro
T: William Optics GTF81
C: ZWO ASI533-Pro [Cooled]
F: Ha & Oiii Narrowband (ZWO 7nm)
G: PHD2
GC: ZWO ASI120mini
Format: RAW16; FITs
Temp: -10 DegC
Gain 101;
Frames: 24 x Ha Exp 400s; 24 x Oiii Exp 400s
Dark Calibration Frames: 1 Master Dark from 20 Darks
Flat Frames: 1 Master Flat from 50 flats
100% Crop
Capture: SharpCap [Advanced Sequence automation]
Processed: Astro Processor Pro [APP]; Photoshop [PS]
Sky: No moon, calm, No cloud, Bortle Class 5, good seeing.
This is the wonderful globular cluster M 3 in Canes Venatici. It‘s one of the largest and brightest, and is made up of around 500,000 stars. It is estimated to be 11.4 billion years old and 32,600 light-years away from Earth. I had already photographed this cluster for about 3 hours last year and was able to add another 2.5 hours this time, which made the faint stars in the outer regions of the cluster more visible. Well, M 13 in Hercules is even more spectacular, but I think M 3 is worth to take a closer look at it. Hope you like it!
Equipment used:
Skywatcher 200/1000 @ 950mm f/5
EQ6-R Pro
ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)
RGB (no filter): 658 x 30" (5h 29‘)
N.I.N.A., Guiding: ZWO ASI 120 MM & PHD2
Bortle 5
Astropixelprocessor, Photoshop, Pixinsight
Dati: 12 x 300 sec ( 1 ore) gain 5 @ -10° c + 70 dark + 30 flat e darkflat
Filtro: Astronomik UV/IR Block L2
Montatura: EQ6 pro
Ottica: Takahashi FSQ106
Sensore: QHY168C
Cam guida e tele: magzero mz5-m su Scopos 62/520
Software acquisizione: nina e phd2
Software sviluppo: AstroPixelProcessor e Photoshop
Temperatura esterna: 18 ° C - Umidità 70%
The Dark Wolf Nebula (Sandqvist–Lindroos 17), is a dust cloud embedded within the Gum 55 (RCW 113) Nebula in Scorpius.
This is a Seestar 30 pro image from Bortle 6.1
integration:
254 * 60 seconds= 4.23 hours
703* 30 seconds= 5.86 hours
so just over 10 hours of total integration
stacked in AstroPixelProcessor, processed in PixInsight
Comet ATLAS C/2019 Y4, discovered in December 2019, has been quickly increasing in brightness over the last few months, and many of us hope that trend will continue; past projections put it as reaching naked-eye brightness this April or May. However, it's brightness has recently plateaued around magnitude +8. That and an elongated nucleus suggest that it might be disintegrating.
It was likely about magnitude +8 when I photographed it last night, April 9th, near Star 42 Camelopardalis. I'm not sure what the faint nebulosity is to the lower left of the comet: either Dark Nebula HSVMT 25, integrated flux nebula (IFN), or it's simply an artifact. Galaxy NGC 2366 is also apparent in the upper right corner.
Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 30 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker (used comet stacking mode so stars and comet were stacked separately and then combined), editing with Astro Pixel Processor and GIMP, taken in the 30 minute-window between astronomic dusk and the rise of the 93% illuminated moon on April 9, 2020 under Bortle 3/4 skies.
M90 Galaxy found in the constellation of Virgo.
M: Pegasus NYX-101
T: WO GTF81 Refractor
C: ZWO ASI533MM-Cooled
G: OAG and PHD2
GC: ZWO ASI120MC
RAW16; FITs
Temp: -10 DegC
R: Gain 100; Exp: 10 x 300s
G: Gain 100; Exp: 6 x 300s
L: Gain 100; Exp: 10 x 300s
Frames: 26 Lights; Darks/DarkFlats/Flats
Total Exposure: ~2.17 hours
50% Crop
Capture: NINA
Processed: APP LRG[No 'B']; PS.
Sky: 90% moon, no breeze, no cloud.
Polaris & ses nébuleuses sombres
-
-
-
Aujourd’hui, je vous fais découvrir les nébuleuses sombres qui accompagnent l’étoile polaire.
Cette étoile sert depuis des millénaires comme point de repère entre autre pour la navigation. Elle nous sert aussi à nous aligner pour nos montures équatoriales puisque toutes les constellations tournent autour de Polaris.
Que viennent faire les nébuleuses sombres dans cette histoire ?
Elles sont présentes autour de notre étoile polaire. En anglais, elles sont appelées IFN pour « Integrated Flux Nebula ». Elles sont principalement composée d’hydrogène moléculaire et d’hélium.
Cependant, ce n’est pas aisé de pouvoir les photographier. D’une part, comme leur nom l’indique, elles sont obscures.
Ce sont des nuages denses qui absorbent la lumière des étoiles en arrière plan.
D’autre part, au moment de la prise de vue, elles sont invisibles. Très pratique me direz vous… Même constat au moment de l’empilement, il n’y a que le traitement qui permettent de les mettre en valeur.
A titre d’exemple la tête de cheval (IC434) dans la constellation d’Orion fait partie des nébuleuses sombres les plus connues.
-
-
Photographier sur deux nuits pour obtenir,
300 lights d’une minute soit 5h de temps d’intégration
Offset + Flats, No Dark.
Bortle 4
Traitement AstroPixelProcessor, Photoshop.
Approx 10 hours each of HA and OIII, taken in 5 minute subs.
AP 155EDFS refractor. ZWO ASI6200 mount.
Processed with AstroPixelProcessor and Photoshop.
The Theta Musca Supernova Remnanant-G304.4-3.1
this is a recently discovered SNR (first imaged in high resolution just over a year ago by Bray Falls)
The object is huge and too big for the small sensor of my imaging camera, so I will have to re-attempt with possibly my RedCat51 at some future point in time.
Equipment
HEQ5/ASIAIR/Sharpstar Z4/Antlia 3 nm Ha Filter/Optolong 3nm OIII filter/ZWO ASI533MM Pro
Integration
16 hours in OIII (10 minute subs)
4 hours in Ha ( 10 minute subs)
Location
Bortle 6
imaged over multiple nights in July 2024
Processing notes
Ha and OIII data stacked in AstroPixelProcessor.
Ha and OII integrations registered in APP.
Processed in PixInsight
Dynamic Crop
Graxpert for gradient removal (for some reason GraXpert did a better job IMHO than my usual goto ADBE )
BlurX-correct
BlurX default
Starnet++
SetiAstro NB to RGB script to convert Ha and OII star masks to star layer -only mild stretch (4.0) applied
NoiseX on starless images
GHS for starless layer. Had to experiment to not overstretch the data especially Ha and swamp the image with ha signal
Linear Fit
HOO image constructed with PixelMath
Red- Ha
Green- 0.2 Ha +0.8 OIII
Blue-OIII
mild curves transformation
star layer added using Pixelmath
Narrowband Normalisation
BlurX
NoiseX
levels adjustment in Photoshop CS
Comment
Images published on the web tend to show the oxygen areas in an electric blue and the Ha areas in a hue closer to pink
while it was possible to achieve this colour palette by using adjustment layers (Hue/Saturation, colourise) I have chosen to go with the image more or less as it emerged from PixInsight
M101 Pinwheel Galaxy
Equipment:
Celestron AVX
Baader Moon and Sky Glow with IR cut filter
ES ED 102 FCD 100 Scope
SSAG Cope and Camera
ZWO 183mc Pro
Pegasus Focus Cube
Software:
SGP Acquisition
Sharp Cap - Initial Focus and Polar Align
AstropixelProcessor for stacking and initial stretch
Finished in Photoshop
I'll have to look to see how much integration.
Very weak and identified in 1954 on photographic Plates as a Milkyway satellite.
Esprit 100 f5.5 APO/Qhy16200 CCD @-20C.
98x300 sec IDAS-LP2 filter.
Imaged on: 13,14,15&16 May, 2018.
Knight Observatory, Tomar
Bortle 4.6 Location
Alt-az
10 second subs
347 subs
Stacked in AstroPixelProcessor, processed in PixInsight
imaged in July 2024 from Linden, Blue Mountains, Australia
Dati: 26 x 4 min. 800 Iso + 15 Dark + 25 flat e darkflat software: AstroPixelProcessor e Photoshop CS2 Strumenti: ottica Takahashi FSQ106 f/5 su Skywatcher EQ6 pro - Canon 40D CentralDS. 10/08/2020 - Castelletta (AN), Temp. esterna: 18° C temperatura al sensore 0,00°C - Umidità 75%
The 'W' of Cassiopeia has always been one of my favorite constellations - maybe because I could always spot it as a kid.
This extent contains the middle three stars of the 'W' - Ruchbah (blue, bottom), Navi (blue, upper left), and Shedar (yellow, upper right). The center star of the 'W', Navi, illuminates the Gamma Cassiopeiae Nebulae (IC 59 and IC 63) a combination of red emission and blue reflection nebulae. The red/pink emission nebula below Shedar is the Pacman Nebula (IC 11 or NGC 281). And to the right of Ruchbah is the Owl or E.T. Cluster (NGC 457); the owl or E.T. is upside down here.
Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 35 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Oct. 23, 2019 under Bortle 3/4 skies and thin cloud cover.
Thin cloud cover was present most of the time that I imaged and acted as a diffusion filter for the larger stars. I kind of like this effect that emphasizes big stars, especially for this extent where the nebulae are fairly small for a focal length of 135mm, although I'd always prefer clear skies to a natural diffusion filter. Even though my tracking was spot-on (good balance, polar alignment, and a charged SkyTracker), I wasn't able to use about half of my subs because of clouds.
D5300 - unmodded
300mm f/2.8 AF-S
SW HEQ5
Captured with APT, Processed in APP, Gimp
10 - Lights, 90sec, ISO400, f/4
10 - Darks
10 - Flats
10 - Bias
IC 5070, the Pelican Nebula in the constellation Cygnus in the light of hydrogen. 72 frames, 300 sec. each (6 hr. total). Explore Scientific ED102 0.1m f/7 refractor, Stellarvue 0.8x reducer/flattener, ZWO ASI294MC Pro cooled camera, 7nm H-alpha filter, iOptron CEM25P mount, auto-guided, ASIAir controller. Processed in Astro Pixel Processor, Lightroom, and Photoshop.
#astrophotography, #deepsky
This color image was made with the Mono CCD camera and R, G and B filters. Because the Comet is moving fast all the 103 images made with the three different filters had been shifted and had to be re-aligned before stacking. A second stack was made to only show the stars. The 2 stacks have been combined and processed further.
AstroPixelProcessor: Calibration of the sub frames with Bias frames, Dark frames, flat frames and the Bad Pixel Map.
Pixinsight: StarAlignment, CometAlignment, Separate ImageIntegration for R, G, B for stars and comet. BackgroundCorrection, Histogramtransformation (Black point clipping for starcombined image), Pixelmath combination for starimage and Comet image, ,Platesolver script, Arcsinh Stretch, histogram stretch, curves adjustments, Image annotation script, annotations,
Knight Observatory, Tomar, Portugal
An image in Ha RGB
Located between Hadar and Rigel Kentaurus, this nebula has recently become quite a favourite for astroimagers
Location : Bortle 6
Equipment
Sharpstar z4/Antlia 3 nm Ha filter/ Antlia Triband RGB filter/ZWO 533 Mm pro -for H-alpha /6/533 MC pro for RGB colour/ASIAIR/HEQ5/ASIAIR
Data
4 hours in RGB (5 minute subs)
8 hours in Ha (10 minute subs)
20 minutes in RGB ( 60 second subs) -for stars
Processing
stacked in AstroPixelProcessor, processed in PixInsight
Processing Notes
Ha and RGB separately
Stack
register Ha, RGB long and RGB short stacks
Dynamic Crop
GraXpert
Blur X -correction
Image Solver
SPCC
Starnet++
Nebula
BlurX
NoiseX
GHS
NoiseX
Dark Structure Enhance ( for Ha only)
Curves Transformation
Stars
SetiAstro star stretch script
HaRGB image constructed using Foraxx utility in PI :
Synthetic OIII constructed as follows:
RGB image split into r,g and b
OIII=( 0,55*G +0.55*B)- 0.1*R
on the assumption that some red leaks into Blue and Green, 10 % is just a guess
Starless image in Foraxx constructed using Paulyman's script in PI
Curves Transformation after applying a luminance mask
Stars and starless combined with Pixelmath
Minor tweaking including a final crop - in Photoshop CS6
See also Starless version in Ha