View allAll Photos Tagged autostakkert
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Timestamp: 22.5.2023 14:22:02 CEST
10" GSO Dobson Deluxe on Astrothingy EQ platform
Thousand Oaks Optical Solar Filter
Meade #908N Narrowband filter
Camera: ZWO ASI462MC
Captured by FireCapture with following settings:
Resolution: 1936x1096
duration 20s
exp 1.00ms
gain 0
frames 2010 (40% best stacked)
Profile=Sun
Stacked in: AutoStakkert! v3
Postprocessing by Registax (Wavelets)
Final postprocessing by Gimp:
Color levels (RGB) adjustments + Color curves adjustments + Sharpen + Crop
27% Waxing Crescent Moon. Taken from Oxfordshire, UK with a William Optics 70mm refractor with ASI120MC camera + Celestron 3x Barlow. The telescope was on an EQ5 Pro mount on a permanent pier.
Between 21:17 and 21:35 BST, 11 x 2,000 frame videos were captured covering the whole Moon using SharpCap, the best 30% of the frames were stacked using Autostakkert! 3. 7 of the stacked images were stitched using Microsoft ICE then processed in Lightroom and Fast Stone Image Viewer. The first video I shot was pretty clear but then thin cloud was moving across the Moon for the remainder of the imaging session.
Mars as it looked on the night of 6th-7th August. With an orbital period of 686.971 days, Mars only appears as more than a red dot every couple of years so its appearance is something I always look forward to. Mars reaches opposition on October 13 and at that time it will appear significantly larger, brighter and rounder than it looks now (in this image it is 87.1% illuminated, at opposition we will see the full disk). However, despite being two months away from opposition, Mars is very dominant in the night sky and well worth observing.
Captured with SharpCap
Processed in PIPP, AutoStakkert and Registax
Post-processed in Photoshop
3,540 stacked video frames at 30 fps
Gain - 50%
Exposure - 0.008607 seconds
Total integration - 30.47 seconds
Equipment:
Sky-Watcher Explorer-150PDS
Sky-Watcher EQ5 Mount
ZWO ASI120 MC camera
x2 Barlow with extension tube (equivalent to x3.3)
Better on black like this? Or on white?
Telescope = Lunt LS60HaDS50/B1200
Camera = DMK21AU618
Mount = EQ6 Pro
Software = capture in ICCapture, stacking in AutoStakkert 2, mosaic in Photoshop CS5
Mosaic = 5 images (4 corners and one for the center overlap region)
Date = 21/05/2012
Beverage = Hop City Barking Squirrel lager
The International Space Station / ISS
The ISS is a microgravity and space environment research laboratory in low Earth orbit, with an orbital speed of 17,100 mph (27,600 km/h). It has been continuously occupied by humans since November 2000. It is the largest artificial satellite in orbit with a length of 357.5 ft (109 m).
Each one of the 4 images in this composite was processed like a small planetary image stack:
12 x 1/4000 second ISO6400 (best of 15 to 30 frames each)
Apparent magnitude: -3.5
Apparent diameter: 42"
Distance: 335 mi (539 km) at 49° altitude
Atmospheric seeing: 2/5
Captured from 23:36:24 to 23:37:44 UTC on 02/05/22
Location: Summerville, SC
Camera: Canon 7D Mark II
Telescope: Explore Scientific ED80 f/6.0 Apochromatic Refractor
Barlow: Tele Vue 2x Barlow 1.25" (effective magnification is 2.86x for 1377mm focal length at f/17.2)
Tripod: Cayer BV30L 72" Aluminum Tripod with K3 Fluid Head
Processed with PIPP, AutoStakkert! 3 (with 3x drizzle), PixInsight, and Paint.NET
Best 66% of 3,000 frames in Autostakkert.
Wavelets - Registax 6
Photoshop CC 2015 for final touches.
Good transparency, Average Seeing, Pickering Scale = 5.
Celestron CPC800XLT
ASI120MC-S
Shorty 2X Barlow
Celestron NexStar 6SE, ZWO asi224mc with IR cut filter, 2.5x TeleVue Powermate and ZWO ADC. 3 minute video Captured in SharpCap, processed in PIPP, AutoStakkert, RegiStax Wavelets then Lightroom.
Equipo: Star Adventurer - Mak 102 - Barlow 2x - Canon 60D
Magic Lantern 640 x 480 x 5x
Video RAW . ISO 800 - 1/250s - 20 fps - Apilado 50% de 2425 frames
Procesado: DNG2RAW - PIPP - AutoStakkert - Photoshop
Taken using a 140mm refractor and a Baader Herschel wedge and Continuum filter / 3x Barlow / PGR Grasshopper 3. The best 10% of around 1000 images were stacked using Autostakkert 2 and sharpened using Photoshop CS5, then false colour added.
Taken in light but consistant cloud. Exposure at 320th sec ISO 400 for this one. ED80 Refractor and Canon 500D. Prime focus at 600mm. Baader Solar Cap. Took 40 shots and stacked the best 30 in Autostakkert 2. Registax 6 would not stack these images properly due to the corona effect caused by the clouds
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Timestamp: 10.5.2022 21:33:48 CEST
10" GSO Dobson Deluxe non-motorized
Barlow lens 2.5x
IR cut filter
Camera: ZWO ASI462MC
Captured by FireCapture with following settings:
Resolution: 1936x1096
duration 15s
exp 10.00ms
gain 50
frames 959
Profile=Moon
Stacked in: AutoStakkert! v3
Postprocessing by Registax (Linked Wavelets)
Final postprocessing by Gimp:
Sharpen + denoise + exposure increase + crop
99.4% full moon rising just after sunset. The clouds partially ruined it, but these ended up having a more artistic/dramatic look than expected.
14 x 1/100 second f/8 ISO3200
Apparent magnitude: -12.70
Apparent diameter: 32'54"
Distance from Earth: 0.002427 AU
Location: Sullivan's Island, SC
Camera: Canon 7D Mark II
Lens: Canon EF 100-400mm f/4.5-5.6L IS II USM + EF 1.4x III Extender
Tripod: Cayer BV30L 72" Aluminum Tripod with K3 Fluid Head
Processed with PIPP, AutoStakkert! 3, and GIMP
Sol Regiones Activas 13006, 13004, 13001 y 12999
Buen seeing y algo de viento (poco pero muy tocapelotas)
Telescopio: Refractor Bresser Messier Acro 102/460 f4.5
Cámara: ZWO ASI178MM
Montura: iOptron AZ Mount Pro
Filtros: - Baader Neutral Density Filter 1¼" (ND 1.8, T=1.5%)
- Baader Solar Continuum Filter 1¼" (double stacked) (540nm)
Accesorios: - Baader 2" Cool-Ceramic Safety Herschel Prism
Software: FireCapture, AutoStakkert, Registax y Photoshopp
Fecha: 2022-05-05 (5 de mayo de 2022)
Hora: 15:09 T.U. (Tiempo universal)
Lugar: 42.615 N -6.417 W (Bembibre Spain)
Vídeo: 1 minuto
Resolución: 3096x2080
Gain: 123 (24%)
Exposure: 0.032ms
Frames: 1270
Frames apilados: 44%
FPS: 20
Sensor temperature= 41.7°C
Jupiter, the 5th planet, is growing larger in our sky as we approach opposition in August. This was my first time capturing the Great Red Spot since July 2019. The GRS is the largest storm in the Solar System, with a diameter larger than Earth. Wind speeds in the storm peak at 268 mph (432 km/h).
Two of Jupiter's moons are also visible in this shot: Europa (closer to the planet) and Io (further). Jupiter has 80 known moons and a faint ring system. Its atmosphere is separated into several bands at different latitudes, resulting in turbulence and storms along the boundaries.
5000 x 1/100 second ISO6400 (best of 7,281)
Phase angle: 5.8°
Apparent magnitude: -2.78
Apparent diameter: 48"
Distance from Earth: 4.126 AU
Atmospheric seeing: 4/5
Location: Coral Springs, FL
Camera: Canon T3i
Telescope: Explore Scientific ED80 f/6.0 Apochromatic Refractor
Barlow: Antares 3x Triplet Barlow (effective magnification is 4.932x for 2373mm focal length at f/29.66)
Mount: Orion Sirius EQ-G
Captured with Magic Lantern RAW Video (10 bit, 30 FPS, 640 x 426)
Processed with MLV App, PIPP, AutoStakkert! 3 (with 3x drizzle), PixInsight, and Paint.NET
Saturn 30th Aug 2024, 00:21 UT. My first attempt at Saturn this year. The attached is a combination of the best 4 images derotated in WinJupos. Each image was a stack of the best 3,000 frames from 7,500 frame AVI's. Captured using Firecapture V2.7, Processed using Autostakkert V4, Registax V6 and Winjupos. Equipment used, Celestron C14 Edge HD, CGEPRO Mount, ZWO ASI224MC camera, Carl Zeiss 2X Barlow and ZWO ADC.
Stack of 200 images through Skywatcher 8 in Dob with a 6D. Individual exposures 1/1600th sec at ISO400. Processed with PIPP, Autostakkert & Faststone.
Crater Gassendi (Colongitude 56°)
Object: Crater Gassendi
Colongitude: ~56°
Optics: Celestron 9.25 F20
Mount: Sky-Watcher EQ6-R
Camera: ZWO ASI 120MM-S
Filter: RGB 1,25" Filters
Exposure: R 10% of 2000 Frames, G 10% of 2000 Frames, B 10% of 2000 Frames
Date: 2019-02-16 21:00:00Z
Location: Schwaig
Capture: SharpCap 3.1
Image Acquisition: Stephan Schurig
Image Processing: Stephan Schurig
AutoStakkert 3.0.14: Analysis, Stack
Fitswork 4.47: RGB Combine
Photoshop 20.0.3: Unsharp Masking, Smart Sharpen w. Denoise, HighPass Sharpening, Unsharp Masking, Nik Dfine 2 Denoise, Dynamic (Dynamic, Saturation)
Lunt LS50THa solar telescope and ZWO ASI120mm camera.
Best 30% frames stacked of 6000 in Autostakkert, wavelets tweaked in Registax6 and colour added in PS
Tonight Jupiter's moons were all nicely spaced for viewing... In apparent terms, Io was the furthest from Jupiter, when in fact it is the closest of the four Galilean Moons. So to have the other three moons look closer is a bit of a rarity.
Which is which? Well, Io is the yellow one (at left), Ganymede is the big one (bigger than Mercury), and Europa and Callisto are the other two on the right. Europa is the brighter of the two - even though it's smaller than Callisto, it appears to be brighter because its highly reflective ice surface has an albedo of 0.67, while Callisto's surface has an albedo of 0.22.
I captured this video with my ASI120MC camera on my C8. I removed the Barlow to get a wider field of view. Processed in AutoStakkert! and Images Plus, with lots of masked operations so that Jupiter and its Moons were processed separately.
87.2% waxing gibbous moon in daylight! This was captured one hour before sunset.
25 x 1/2000 second ISO200
Apparent magnitude: -12.09
Apparent diameter: 32'59"
Distance from Earth: 0.002421 AU
Altitude above horizon: 21°44'
Location: Coral Springs, FL
Camera: Canon T3i
Telescope: Explore Scientific ED80 f/6.0 Apochromatic Refractor (with ES field flattener)
Mount: Orion Sirius EQ-G
Processed with PIPP, AutoStakkert! 3, PixInsight, and Paint.NET
Last spring while testing the resurrection of an old newtonian reflector from the 1950's and the upgrade of a dobsonian I built out of optics from the 80's, I pull out my vintage 1962 refractor and was impressed by it's display of the 'Lunar X' (a link to an image of the scopes and my observation of the 'X' that day can be found attached here - www.flickr.com/photos/homcavobservatory/49623259012/
Object Details: The 'X' and 'V' are of course a result of pareidolia (i.e. per wiki '... the tendency for perception to impose a meaningful interpretation on a nebulous visual stimulus. Common examples are perceived images of animals, faces, or objects in cloud formations, or lunar pareidolia like the Man in the Moon or the Moon Rabbit ...').
Visible for only a few hours prior to first quarter phase, the 'X' results from the illumination of the rims of the craters Blanchinus, La Caille & Purbach; while the 'V' is the crater Ukert and several smaller ones in the surrounding region.
Being aware of these examples of pareidolia for decades, and no doubt having observed them many times over the years, I thought at the time I was observing them with the refractor last year that I really should try to image it someday. Therefore, it was quite serendipitous that after imaging the Sun in various wavelengths on May 18th of this year, I found that the moon's phase happen to be such that 'X' & 'V' were fairly apparent. Having been utilizing my vintage 1970, 8-inch, f/7 Criterion newtonian reflector to shoot the unusual sunspot groups AR2824 that afternoon, I decided to use that setup to try to catch the 'X' & 'V' (although I have yet to process the solar data from earlier that day, images from the following afternoon can be found at the link attached here -
www.flickr.com/photos/homcavobservatory/51194703565/ ).
Since I was using filters of various wavelength on the Sun, in order to attempt to reduce the detrimental effects of seeing on the moon, I utilized an infrared filter for the lunar shot. Albeit imho, the pareidolia which causes humans to have the tendency to recognize these types of 'imaginary' lunar features often actually benefits from lower quality optics & / or poorer seeing, as the details of their actual root cause / construction are blurred due to the lower resolution - resulting in a greater 'pareidolic effect'. However with that said, and possibly due to the fact that I have been 'indoctrinated' into always pursuing the 'cleanest' data I can capture ;) , I proceeded forward with the use of IR wavelengths on the fairly high precision optics of our old Criterion newt.
Image Details: The result of this effort can be seen in the attached. It is a stack of several hundred frames selected from a video clip consisting of several thousand, and processed using a combination of AutoStakkert, Registax & PaintShopPro. As presented here has been left at it's original resolution, with the luminance / lightness channel extracted. It was shot at the HomCav Observatory by Jay Edwards at 21:57 EDT on May 18, 2021 using a ZWO ASI290MC at prime focus on the above mentioned 8-inch newt.
Since I tend to shoot simultaneously using multiple scopes in order to maximize any clear skies we might receive, in addition to using SharpCap Pro for video clips, I also took wide-field / 'full disk' images that evening using an unmodded Canon 700D (t5i) DSLR controlled by AstroPhotographyTool (APT) on an 80mm f/6 carbon-fiber triplet apochromatic refractor (i.e. an Orion ED80T CF) connected to a Televue 0.8X field flattener / focal reducer. The 80mm apo. was piggybacked on the 8-inch, along with an 80MM f/5 Celestron 'short-tube' doublet (for guiding when imaging DSOs) as well as a few other items (e.g. a CCD & wide-field camera lens, etc.) and these optics were tracked using a Losmandy G-11 mount running a Gemini 2 control system. That night I also shot several additional video clips using the 8-inch in anticipation of creating a mosaic of the entire terminator, but have yet to examine those nor the 80MM shots.
Although the relatively decent result of the attached image actually leads to the 'X' & 'V' being somewhat resolved into their component sub-structures and thus reduces the pareidolia somewhat, I was fairly pleased with how it turned out. Being a fan of actual geologic lunar features, rather than reducing the image to HD I left it at full resolution. Quickly browsing it I noticed shows some wonderful detail in the lunar rilles which can bee seen to the right of the 'V'.
The two most apparent ones are the 220 km (133 mi) long by 4 km (2 mi) wide rille Rima Hyginus & the 300 km wide x 5 km wide rille Rima Ariadaeus. Rima Hyginus appears to be the result of the collapse of subterranean volcanic structures between smaller craters on either side of the more prominent crater Hyginus - which itself it thought to be volcanic in nature rather than the result of an impact, while Rima Ariadaeus seems to be a section of the Moon's crust which has sunk down between two parallel fault lines.
I also noticed some decent detail in the prominent 136 km (82 mi) diameter crater Albategnius (just lower right of image center). Showing the distinctive ragged shadow of it's rim's peaks silhouetted against it's flat floor up to 4000 meters (13000 ft) below; within the crater itself can been seen it's central peak extending nearly 20 km in length & about 10 km in width and rising 1.5 km above the lava-flooded crater floor.
I'm looking forward to processing the files for the mosaic of the terminator mentioned above and seeing what other interesting features I might be able to pull out of the data.
Wishing all who celebrate it a very Happy Memorial Day !
A transit of Jupiter by Io and it's shadow with the Great Red Spot. Taken on 23 June 2018 at 04:33 UT from Terlingua, Texas.
Questar 1350/89mm, f/15, telescope with Dakin 2x Barlow, and ZWO ASI120MC camera. Best 32 of 1500 images stacked in Autostakkert 3, deconvolved in Lynkeos, with final crop and exposure in Photoshop.
...featuring AR 2524 and western limb proms.
North is up, East is left.
My attempt to use "recently developed" and tested "Barlow-buster" to get hi-res whitelight image of te Sun failed miserably, surrendering to ugly astigmatism. The only element to blame is my whitelight film filter...
So back to little PST, which diesn't let me finish session empty-handed.
And - that is good, if I'm not mistaken - the 800x800 pixels frame, like the one on the right panel, seems to be very evenly illuminated, so maybe flatfield calibration is not that important. Homework task: evaluate this :)
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10" GSO Dobson Deluxe non-motorized
IR pass filter
Barlow lens 2.5x
Camera: ZWO ASI462MC
Captured by FireCapture with following settings:
Resolution: 1936x1096
duration 20s
exp 12.00ms
gain 50
frames 1667
Profile=Moon
Stacked in: AutoStakkert! v3
Postprocessing by Registax (Linked Wavelets) + desaturation
Final postprocessing by Gimp:
Sharpen + denoise + crop
Luna del 09/07/2016
Apilado 9 de 78 tomas video RAW de Magic Lantern.
SW Dob 8" f/6 - Canon 60D - ISO 400 - 1/400s - Barlow 2x - Foco primario
Procesado: PIPP - AutoStakkert - Adobe Lightroom
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Timestamp: 22.5.2023 14:22:46 CEST
10" GSO Dobson Deluxe on Astrothingy EQ platform
Thousand Oaks Optical Solar Filter
Meade #908N Narrowband filter
Camera: ZWO ASI462MC
Captured by FireCapture with following settings:
Resolution: 1936x1096
duration 20s
exp 1.00ms
gain 0
frames 2001 (60% best stacked)
Profile=Sun
Stacked in: AutoStakkert! v3
Postprocessing by Registax (Wavelets)
Final postprocessing by Gimp:
Color levels (RGB) adjustments + Color curves adjustments + Sharpen + Denoise + Crop
TEC 250 @ F/12 + ASI 1600MM-C
Image scale 0,25"
Captured with Sharpcap
Processed with AutoStakkert!2, Pixinsight
Telescopio Newton 155/1000 su base dobson, oculare Plossl 5 mm. Samsung S6; adattatore universale per smartphone. Filmato di 458 frames a 30 fps, di cui il 50% elaborati con PIPP, Autostakkert, AstraImage e Photoshop.
Uranus as imaged from home on the 1st Jan 2018.
A reasonably clear night, teamed up with a pretty well aligned scope meant it was easy to find Uranus.
I used the ZWO ZSI120mc CCD camera and Firecapture to collate the raw footage, and processed in AutoStakkert and DSS.
First attempt at a Jovian timelapse.
(Click on double arrow symbol to view at actual size in light box)
Celestron Nexstart 127 SLT
Skywatcher 2x Barlow
Baader IR-UV Cut Filter
DMK21AU618
Capture: FireCapture - 80 x 3182 frames @ 60 fps @ f23.6
Stacking: AutoStakkert!2 - Best 30%
Wavelets: Registax 6
Postprocessing: Adobe Photoshop CS5
Eratosthenes and the Sinus Aestuum (L79) in the Southeast passing along the Apennine range (L4) to the Caucasus range then finally Aristoteles at top right. Archimedes (L27) is the large central crater.
Other Lunar 100 objects
L66 Hadley Rille
L82 Linne crater
Celestron 8SE SCT
PGR Grasshopper 3 CCD camera with red 2C filter
Ioptron ZEQ25GT mount
Best 7% stack of 1500 frames in AutoStakkert!2
FireCapture 2.4 settings
Gain: 234
Exposure: 27.34 ms
Gamma: 1536
Nikon z7 Tamron G2 150-600 Tcx20 1200mm f/13 100iso 1/50. Best 10% of 400 frames. Stacking with Autostakkert, Wavelets with Registax, Post-processing with Darktable.
Sunspot groups AR2443 (left) and AR2448 (right, if I'm not mistaken) captured 06.11.2015 @09:30 MSK (UT+4).
DMK23U274 via 2x Barlow lens on Coronado PST on Celestron CG-4.
25% of 1500 frames, processed in AS!2, AstraImage 3.0 (gamma, RLD, wavelets) and PS (final assembly and extra contrast adjustment).
My seeing was catastrophic, fulldisk montage failed.
30 Sep 2016 0130 UTC
Coronado PST 40mm
IMG132e
Autostakkert
PixInsight
ShahGazer Observatory, Sri Damansara, Malaysia
A shot of the waxing crescent moon that was taken on February 13, 2016 using my Stellarvue SV80 telescope and a 2X barlow (960mm effective focal length, f/12) with a ZWO ASI174MM camera (exposure time 13ms, camera gain of 179, Astronomik ProPlanet IR 742nm filter).
This was a quick grab with the moon fairly low in the sky (17 degrees altitude) using a fixed and non-tracking, alt-azimuth mount.
The picture was produced from a stack of the best 50% of 530 images taken at a scale of 1.26 arc second per pixel. Processing was done with AutoStakkert, Registax, and Photoshop CC 2015.
The image is best seen at full size (1032 x 1600) and against a dark background.
All rights reserved.
17 Apr 2019
0130 UTC
Full aperture baader.
ZWO ASI290MM
C9.25 (F=2350mm)
AutoStakkert
PixInsight
Moderate seeing (3/5)
The spring full moon before the clouds came back in Austin, Texas. Transparency was poor with exposure a full stop more than usual. Questar 1350/89mm f/15 telescope with Sony a6300 camera at prime focus. Best 8 of 150 images stacked in Autostakkert 3 with deconvolution in Lynkeos and final crop and exposure adjustment in Photoshop.
Acqusition time: 09.08.2016 around 09:00 MSK
TIS DMK 23U274 on Coronado PST
140 out of 1200 frames were stacked in AS!2 deconvolved AstraImage 3.0 PRO (Richardson-Lucy aggressive, Cauchy-type, 0,3 pixels, 12 iterations). Contrast enchancement and masking-blending and aggressive composing were done in PS.
My first attempt at 'lucky imaging'. Taken May 10, 2022
Camera: Olympus OM-D E-M1MarkII in 4K video mode
Filters: none
Telescope: TS 102mm ED f/11 doublet refractor
Post: Autostakkert!3, ffmpeg. - best 50% of 3660 frames
Finish: Affinity Photo - stretch, levels, contrast, sharpen
One hour of the Sun's life squizzed into 6 seconds...
WARNING! Sun is dangerous, use proper filters for observing and imaging!
Aquisition time: 12.10.2013, betwee 12:48 and 13:50 MSK (UTC+4)
Image orientation: inverted (North is down, East is to the right).
Equipment:
Canon EOS 60D (unmodded) coupled to Coronado PST via Baader Planetarium Hyperion Zoom 8-24 mm Mark III click-stop system eyepiece and Baader Planetarium M43-to-T2 conversion ring and riding on Celestron CG-4 equatorial mount.
Aperture 40 mm
Native focal length 400 mm
Effective focal length 931 mm (zoom setting - 16 mm)
Tv = 1/60 seconds
Av (effective) = f/23
ISO 1600
Exposures: around 1500-2500 for each frame. The Sun was imaged for 30-45 seconds every 4 minutes and 20 seconds during one hour. 25% of frames were used to generate each of 11 frames of the resulting movie.
Processing: MOVs to AVI in SUPER(C). AVIs stacked in Autostakkert!2. Deconvolution in Astra Image 3.0 (Ricardson-Lucy algoruthm, Cauchy-type PSF, size - 6 units, 7 iterations). Coloration, contrast enchancement and pre-stacking (bad, bad tracking :) in Photosshop, clean-up alignment, time-stamping and movie generation in ImageJ.
Taken about 30 minutes before sunset. Seeing was reasonable. Really clear skies but slightly hazy.
Transparency (4/5)
Seeing (3/5)
C9.25 EDGEHD (F=2350mm)
ZWO120MC
SharpCap
Winjupos
AutoStakkert
PixInsight
Coronado PST
ZWO ASI120MM
Sky Watcher Star Adventurer
2 Videos, unos sobre expuesto y uno sub expuesto, cada uno:
Frames: 1000
Frames en stack: 800
Captura: Firecapture
Procesado: Autostakkert + Ps + Pixinsight 1.8
Guillermo Cervantes Mosqueda
Observatorio Astronómico Altaír
Poncitlán Jalisco México
La X lunare, visibile in questa foto, si forma quando la luce solare arriva a lambire le parti più elevate dei crateri La Caille, Blanchinus e Purbach. La X si può osservare nei pressi del terminatore (la linea che separa la parte illuminata da quella notturna) per diverse ore quando la Luna è vicina alla fase di Primo Quarto.
Dati:
- Telescopio Celestron 114/910 Newtoniano
- Montatura Eq2 con motore AR
- Camera planetaria QHY5L-II-C
- Filtro UV-Ir cut
- Barlow 2x Celestron Omni
- Sharpcap per acquisire un video da 1500 frames
- Autostakkert!3 e Registax 6 per elaborare circa il 50% dei frames
- GIMP per regolare luminosità e contrasto
- Luogo: Cabras, Sardegna, Italia
- Data: 6 giugno 2022
- Ora: 21:46 UTC (23:46 ora locale)