Lmst

Gdzieś coś przeczytałem, coś sprawdziłem, zastanowiłem się, doczytałem, pomyślałem i stwierdziłem, że może się uda.

97 klatek po 20 sekund każda złożone w jedno zdjęcie.

Po samym złożeniu nie zauważyłem interesującego mnie obiektu, ale gdy zrobiłem Backgroud Extraction, Denoising w GraXpercie to… chyba jest! Trochę edycji, zmian i…
Z dużą dozą prawdopodobieństwa 🫣😉oto TON-618 - kwazar.
Wikipedia:
„TON 618 (skrót od Tonantzintla 618) – kwazar zlokalizowany na granicy gwiazdozbioru Psów Gończych i Warkocza Bereniki, z przewidywaną odległością współporuszającą się około 18,2 miliarda lat świetlnych od Ziemi[1], światło przez niego emitowane obserwowane obecnie na Ziemi pochodzi sprzed około 10,4 miliarda lat. Posiada jedną z najbardziej masywnych czarnych dziur, jakie kiedykolwiek udało się zaobserwować, o masie 66 miliardów mas Słońca. Czarna dziura o takiej masie jak TON 618 posiada promień Schwarzschilda mierzący 1300 j.a. (średnica około 390 miliardów kilometrów, ponad 40 razy większa od orbity Neptuna)”[2]

#astronomia #astrofotografia #kosmos #astrophotography #astronomy #universe #siril #graxpert

[1] ryje banię 😉🫣
[2] https://pl.wikipedia.org/wiki/TON_618

The image displays a digital astronomy software interface. It features a star field with a graphical analysis window showing photometry results, including centroid coordinates, background value, maximum intensity, and signal-to-noise ratios. Navigation labels for north and east are indicated.

Obraz wyświetla cyfrowy interfejs oprogramowania astronomicznego. Posiada pole gwiezdne z graficznym oknem analizy pokazującym wyniki fotometrii, w tym współrzędne centroidu, wartość tła, maksymalną intensywność i stosunek sygnału do szumu. Wskazane są etykiety nawigacyjne dla północy i wschodu.

The image displays a star field with a focus on the blazar Ton 618. On the left, there's a zoomed-in view of the star field with coordinate grids. On the right, details and photometry results for Ton 618 are shown.

Obraz wyświetla pole gwiazdowe z naciskiem na blazar Ton 618. Po lewej stronie znajduje się powiększony widok pola gwiazdowego z siatkami współrzędnych. Po prawej stronie pokazano szczegóły i wyniki fotometrii dla Ton 618.

Image shows a computer screen displaying astronomical data processing software. It features a dark background with various script loading notifications and an astronomical object highlighted with circular overlays. The interface includes image manipulation tools and a command line for advanced functions.

Obraz przedstawia ekran komputera wyświetlający astronomiczne oprogramowanie do przetwarzania danych. Posiada ciemne tło z różnymi powiadomieniami o ładowaniu skryptów i obiekt astronomiczny podświetlony okrągłymi nakładkami. Interfejs zawiera narzędzia do manipulacji obrazami i wiersz poleceń dla zaawansowanych funkcji.

The image displays a vibrant, pixelated visualization of astronomical data, primarily in blue and purple hues, with some yellow and green highlights. There are also technical details and log entries on the right side, indicating the use of software for processing this data.

Obraz wyświetla żywą, pikselową wizualizację danych astronomicznych, głównie w odcieniach niebieskiego i fioletowego, z kilkoma żółtymi i zielonymi akcentami. Po prawej stronie znajdują się również szczegóły techniczne i wpisy dziennika, wskazujące na wykorzystanie oprogramowania do przetwarzania tych danych.

Compared to other astronomer gears, this small #dwarflab astrograph might be a toy - but it is a serious one…

M101 „Pinwheel Galaxy“.
Composed with 102 images á 30s plus 139 images á 60s from my #dwarf3 - overall about 3 hours.
Post processed with #siril , #graxpert and others.

#astronomy #astrophotography #stargazer

M101 galaxy photo made with Dwarf 3 smart-telescope

M81 / M82 on the night of April 14th to 15th, a total of 1400 images, 15s, 60 gain, with the #dwarf3, 1000 images with the Astro filter, and 400 images with the Duo Band filter.
M81 is from the processing with all images in #Siril, #graxpert, and #luminarneo. M82 is just the Duo Band images, the same settings in Siril and Graxpert, fine-tuned, and both images combined in Luminar Neo; that's the only way I got M82 to look good.

#astrofotografia de M 51 (Galaxia del Remolino) y su compañera, ambas en interacción física.

20 subs de 300sg con C9.25 y ASI2600MC

#siril #graxpert #gimp

Die Region um M105 im Sternbild Löwe, Gestern Nacht früh angefangen, im EQ Mode am #dwarf3 Nochmal 373 Bilder etwas geworden ( ca. 40 Aussortiert ) mit den 300 von vorletzter Nacht ist dann dies Ergebniss herausgekommen. Wieder mit #Siril und mit #graxpert und zum Schluß #luminarneo , zusätzlich nochmal 20 Darks zu Beginn.

Langsam komme ich dahinter :-)

Pan Marcin był chory
I leżał w łóżeczku
Wystawił więc Seestara,
By coś tam smażył w ogródeczku...
A co widział i wypalił znajdziecie na obrazeczku.

Znaczy na kilku, bo wychodzi na to, że mam 2h materiału (a 3h pracy) a od 8:30 do 16:30 się bawiłem w obróbkę i jest kilka wersji.

Celem miała być mgławica IC 1795[1], czyli Mgławica Rybia Głowa (Fish Head Nebula), ale po małej korekcie, jako cel została uznana gwiazda oznaczona jako HIP 11505.
Obróbkę robiłem za pomocą:
A) aplikacją do obsługi teleskopu Seestar S50
B) Siril 1.2.6+GraXpert
C) PixInsight z różnymi ustawieniami.

1) Obróbka aplikacją do obsługi teleskopu Seestar
2) Siril+GraXpert
3 i 4) PixInshight + GraXpert (2 wersje)

Czuję, że czeka mnie duży wydatek na PI+dodatki.

[1] https://pl.wikipedia.org/wiki/IC_1795

#astrofotografia #astronomia #astrophotography #astrofotografie #seestars50 #pixinsight #siril #graxpert

A deep space photograph featuring numerous stars scattered across a dark field, with a prominent nebula or cloud of gas and dust in the center. The image is labeled with coordinates and observational details.

Fotografia z kosmosu przedstawiająca liczne gwiazdy rozrzucone po ciemnym polu, z widoczną mgławicą lub chmurą gazu i pyłu w centrum. Obraz jest oznaczony współrzędnymi i szczegółami obserwacyjnymi.

A stunning view of a star-filled night sky, featuring a nebula with bright, glowing areas and surrounding stars against a dark backdrop of space.

Oszałamiający widok wypełnionego gwiazdami nocnego nieba, z mgławicą z jasnymi, świecącymi obszarami i otaczającymi go gwiazdami na ciemnym tle kosmosu.

An artistic depiction of a nebula in space, showcasing vibrant colors of red, orange, and yellow against a black background filled with stars.

Artystyczne przedstawienie mgławicy w kosmosie, prezentujące żywe kolory czerwieni, pomarańczy i żółci na czarnym tle wypełnionym gwiazdami.

A colorful cosmic scene featuring a nebula surrounded by a field of stars against a dark backdrop of the universe.

Kolorowa kosmiczna scena przedstawiająca mgławicę otoczoną polem gwiazd na ciemnym tle wszechświata.

Here are some photos that I re-edited with PixInsight over the rainy week. The Fish Head and Cat's Eye are two favorites of ours that I felt needed to be re-done and they are astonishing. The Horsehead photo also needed a new edit because the previous background extraction done with GraXpert was too strong and took a lot of the nebula with it. I've listed the objects in order below:

1. Fish Head Nebula (3.42 hours)
2. The Cat's Eye Nebula (12.28 hours)
3. Horsehead Nebula (9.13 hours)
4. Bode's Galaxy (2.67 hours)
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#nebula #astrophotography #astronomy #photography #telescope #pixinsight #blurxterminator #starxterminator #graxpert

I’m so glad that I spent more time on the Elephant’s Trunk! A lot of faint nebulae were visible in my last image but now that I have over 10 hours on it, it all just pops out. It gives the trunk a lot of contrast, revealing all of the detailed structure it has. I even gave BlurXTerminator a go which fixed the star shapes and sharpened up the nebulae, and made the already-detailed trunk even more incredible.

421x90s lights (10.53 hours), darks, flats, biases stacked and edited in PixInsight.
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🌌 The Elephant's Trunk (IC 1396)
🔭 Meade RB-70 (Scope), SkyWatcher GTi (Mount)
📸 Player One Ares-C Pro (Main)
📅 Bloomington, MN (Bortle 8)
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#highpointscientific #nebula #elephantstrunknebula #ic1396 #photography #astrophotography #astronomy #pixinsight #graxpert #playerone #playeroneastronomy #sonysensor #arescpro

NGC 3227 is a rarely-imaged spiral galaxy located in the constellation Leo that interacts with the elliptical galaxy, NGC 3226. My grandpa imaged this galaxy from late April to early May and got 9.6 hours on it. I like the color of this galaxy a lot and it looks like it has a gradient of color that goes from a light blue to more of a golden brown.

144x240s lights, flats, darks, and biases stacked in Deep Sky Stacker, edited in Siril and background extraction and noise reduction applied with GraXpert.
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🌌 NGC 3227/NGC 3226
🔭 Celestron EdgeHD 8" (Scope), Celestron CGEM-II (Mount)
📸 ZWO 294MC Pro (Main), ZWO 224MC Color (Guide)
📅 Jefferson, WI (Bortle 4.5)
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#jeffersonwi #jeffersonwisconsin #jefferson #ngc3227 #ngc3226 #galaxy #interactinggalaxies #astrophotography #astronomy #highpointscientific #deepskystacker #dss #siril #graxpert

Last month me and my grandpa both went after M106 and both images look awesome. Lots of small details can be seen in the bright core of Leonard's image, and a surprising amount of detail can be seen when you crop into my widefield image, even of the smaller, nearby galaxies. This was a fun galaxy to shoot, and many more are coming very soon!

104x240s lights (6.93 hours), darks, flats, and biases stacked in Deep Sky Stacker, and edited with Siril and GraXpert.
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Image 1:
🌌 M106
🔭 Celestron EdgeHD 8" (Scope), Celestron CGEM-II (Mount)
📸 ZWO 294MC Pro (Main), ZWO 224MC Color (Guide)
📅 Jefferson, WI (Bortle 5)

Image 2:
🌌 M106
🔭 Celestron Astromaster 114 (Scope), SkyWatcher GTi (Mount)
📸 Canon Rebel T4i (Main), ZWO 120MC Mini (Guide)
📅 Bloomington, MN (Bortle 8)
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#m106 #ngc4258 #galaxy #bloomington #bloomingtonmn #minnesota #jefferson #jeffersonwi #wisconsin #newtonian #schmidtcassegrain #edgehd8 #edgehd #celestron #skywatcher #graxpert #nina #siril

NGC 891 in Andromeda. 270 60-second exposures with an ASI485MC camera and RC6 telescope. #Astrodon #AstroPhotography #siril #graxpert #GnuGimp

Bright edge-on spiral galaxy NGC 891, the Silver Sliver.

Messier 42 - the Great Orion Nebula using a 🔭in a light polluted area (bortle 7-8) with a 15 min stack and post processing via #graXpert and @Siril_Official .
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#deepskyphotography #Astrophotography #astronomy #messierobjects #m42 #orion #nebula #postprocessing #telescope

The Great Orion Nebula also known as Messier 42 (M42).

NGC281, 2 hours of exposures from a city. Processed with GraxPert and Siril. #siril #graxpert #astrophotography

NGC 281, the Pacman nebula - a hydrogen emission nebula in the Constellation of Cassiopeia.

Messier 106. I only had an hour of imaging time last night before clouds rolled in. I'll need at least 8 hours to capture the faint outskirts of this galaxy. Plenty of noise from Amsterdam and Summer twilight. Processed entirely with FOSS tools. #AstroPhotography #siril #GraXpert #GnuGimp

Messier 106, a bright galaxy in the Northern constellation of Canes Venatici. It is characterized by a bright detailed core and very faint outer disk. Two small galaxies are also in the view.

Captured ~ 1.5 hr each of R, G & B of Messier 33 Triangulum on 6 Nov. 6" refractor & QHY600 camera in Bortle 5/6.

Was not happy w/ initial processing, so left it until now. Second attempt came out much better, IMHO (below are after and before versions). GHS (Generalised Hyperbolic Stretch) & newer #Graxpert version were particularly helpful.

Still room for improvement - needs more integration time and lighter touch with processing!

#astrodon #nlskies #astronomy
#nlastro #astrophotography

Messier 33 Triangulum Galaxy:
Black background with many stars of varying brightness and colour spread throughout.

At center is a spiral galaxy with a slightly yellow core and blue arms spreading out from center in a pinwheel shape.

There are a few small patches of red in the blue arms - like red berries on a bush.

Messier 33 Triangulum Galaxy:
Black background with many stars of varying brightness spread throughout.

At center is a spiral galaxy with a very faint yellow core and blue spiral arms. Gives an overall oval shape.

Just learned about 'GraXpert' as a tool for #Pixinsight. In the past I've mostly used dynamic background extraction as a means for removing gradients in the background, have to try this new tool now! #astrophotography #graxpert

Took another stab at processing this #IrisNebula target - from data captured in May. Not sure if it's a whole lot better. But it was a good chance to continue learning GHS - Generalized Hyperbolic Stretch - which I'm growing quite fond of. Also used #GraXpert AI - which seems to work well for gradient removal.

#Astronomy #AstroPhotography
#nlastro #astrodon #nlskies

View of a small patch of dark night sky. There are many stars of varying sizes and brightness spread throughout. There are some areas of brown clouds which obscure the stars behind them. At center of image is a bright area of blue nebulosity. At the center of this blue nebulosity is a bright white star.

I dabble in a bit of astrophotography. I haven't done much of it but I found a free programme called GraXpert that does a great job of cleaning up the background sky in those kids of shots. Compare the before and after shots here!

https://odd.blog/2023/02/07/graxpert-fixes-your-astro-shots/

#photo #photography #astrophotography #GraXpert #MilkyWay #Tenerife

The Milky Way over the Tenerife, before shot with colour cast.

The Milky Way over the Tenerife, after shot with a darker, more even sky.

Hot off my RSS feeds is GraXpert which I found through this Fstoppers article. It corrects colour tints and gradients in astrophotography shots. I don’t do much astrophotograpy:

late nights

cloudy nights

clear nights are cold

But when I do, I get colour tints from nearby towns and cities, or I add it myself thinking it looked better. I’m still very much a newbie when it comes to this sort of thing. Anyway, here is a Milky Way photo I took in Tenerife last year. I thought it came out pretty well, despite my attempts to make it look better.

From March to the end of August is the best time to shoot the Milky Way in Ireland, and I have to admit I rarely ventured out to try this sort of photography since taking that photo in Tenerife. So, when I read about GraXpert that was the photo that sprang to mind. I loaded the original tiff file into it, pressed the “Create Grid” button, and then hit the “Calculate Background” button. I’m rather pleased with the results!

The GraXpert Grid

I did no other work with this, which is why you can see the foreground, but even so, it got rid of that green colour cast in the sky.

GraXpert is free, open source software. It’s not a plugin of Lightroom or Photoshop, but it’s easy to generate a TIFF file for Photoshop from Lightroom, and then open it in an external programme. It’s definitely worth a try if you have any astro photos you need to work on.

#astrophotography #graxpert #photography #tenerife

https://odd.blog/2023/02/07/graxpert-fixes-your-astro-shots/