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As the name implies, this reflection nebula associated with the star Rigel looks suspiciously like a fairytale crone. Formally known as IC 2118 in the constellation Orion, the Witch Head Nebula glows primarily by light reflected from the star. The color of this very blue nebula is caused not only by blue color of its star, but also because the dust grains reflect blue light more efficiently than red. A similar physical process causes Earth’s daytime sky to appear blue. (ref: NASA)
Tech Specs: William Optics REDCAT 51 Telescope, ZWO ASI071MC camera running at -10F, just over 7 hours of collected data using 60 second exposures, Sky-Watcher EQ6R-Pro mount, ZWO EAF and ASIAir Pro, processed in PixInsight. Image Date: February 5 and 6, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
The Butterfly Nebula, IC1318, is a mix of emission and dark nebulae near the bright star Sadr in constellation Cygnus and lies some 4900 light years away. By comparison, Sadr is a foreground star and lies 1900 light years away. The dark molecular clouds running through the region are physically related to the emission nebula and gives the nebula its distinct butterfly shape.
Details:
Scope: TMB130SS @ f/5
Reducer: Stellarvue 0.72x reducer/flattener
Camera: QHY16200A
Guide Camera: Starlight Xpress Ultrastar
Mount: AP1100 GTO
Ha: 11x15min
OIII: 10x15min
SII: 6x15min
Software: Voyager, PHD2, APCC, Pixinsight
6.8 hrs total exposure
10 hrs Narrowband. RGB stars. ASI 1600. Askar Quad Petzval refractor 130mm F/7.7 1000mm FL. Cropped.
Luminance 2 panel mosaic of the interacting pair of galaxies M81 and M82.
13 hours 20 minutes in total exposure time.
Altair Astro 6" RC, Atik 460ex - captured in Sequence Generator Pro and processed in Pixinsight and CS5.
M 45, it's only 20 minutes of exposure in LRGB with PlaneWave DeltaRho 500 Astrograph 508/1537 F 3/0 camera ZWO ASI 2600 MM, it's 20 shots, 5x60 seconds for each filter, processing with Pixinsight and Photoshop. The Pleiades (also known as the Seven Sisters, the Hen or by the abbreviation M45 in Charles Messier's catalogue) are an open cluster in the constellation Taurus. This rather close cluster (440 light-years) has several stars visible to the naked eye. In city circles you can see only four or five of the brightest stars, in a darker place even twelve. All the components are surrounded by light reflection nebulae, which can be observed especially in long-exposure photographs taken with telescopes of considerable size.
It is remarkable that the stars of the Pleiades are really close to each other, have a common origin and are linked by the force of gravity.
Given their distance, the stars visible in the Pleiades are much hotter than normal, and this is reflected in their color: they are blue or white giants; The cluster actually has hundreds of other stars, most of which are too far away and cold to be seen with the naked eye. The Pleiades are a young cluster, with an estimated age of about 100 million years and an expected lifetime of only another 250 million years, as the stars are too far apart.
Because of their brilliance and proximity to each other, the brightest stars in the Pleiades have been known since antiquity: they are mentioned, for example, by Homer and Ptolemy. The Nebra Disk, a bronze artifact from 1600 BC found in the summer of 1999 in Nebra, Germany, is one of the oldest known representations of the cosmos: in this disk the Pleiades are the third clearly distinguishable celestial object after the Sun and the Moon.
Since it was discovered that stars are celestial bodies similar to the Sun, it began to be hypothesized that some were somehow related to each other. Thanks to the study of proper motion and the scientific determination of the distances of the stars, it became clear that the Pleiades are really gravitationally bound and that they have a common origin.
HDR technique of the Orion Nebula (or M42).
Date: Dec, 2014.
Camera: Canon 1100D/T3 non-modded
Telescope: Explorer Scientific 80mm APO
Mount: Celestron AVX
Lights: 20 x 300sec ISO400; 20 x 30sec ISO400; 10 x 30sec ISO100
Darks: 40 x 300sec ISO400; 10 x 30sec ISO400; 10 x 30sec ISO100
No Bias or Flats
Processed in Pixinsight and Photoshop
The Great Andromeda Galaxy (M31) is the nearest spiral galaxy to our own with diameter of about 220,000 light-years and is approximately 2.5 million light-years from Earth with an estimated one trillion stars. Andromeda is the nearest large galaxy to the Milky Way. The galaxy's name stems from the area of Earth's sky in which it appears, the constellation of Andromeda.
Visible as a faint smudge on moonless nights, it is one of the farthest objects visible to the naked eye. Like the Milky Way, the Andromeda Galaxy has satellite galaxies. Two of the brightest, M32 and M110, can easily be seen in this image on either side of the core of Andromeda.
The Milky Way and Andromeda galaxies are expected to collide in around 4–5 billion years, merging to form a giant elliptical galaxy. The fate of our Solar System in such a collision is currently unknown. If the galaxies do not merge, the Solar System could be ejected from the Milky Way, or even join Andromeda!
Integration: 83 x 180s lights, 20 darks, 30 flats, 30 bias.
Telescope: Askar FRA400 72mm f/5.6 Quintuplet Petzval Flat-Field Astrograph
Camera: ZWO ASI2600MC Pro APS-C CMOS Color Cooled Astronomy Camera
Mount: iOptron HEM27
Filter: Optolong L-Pro Deep Sky Filter
Accessories: ZWO ASIAIR Plus, ZWO EAF
Software: PixInsight, Photoshop
Guiding Telescope: William Optics 50mm UniGuide
Guiding Camera: ZWO ASI290MM Mini
Polar Alignment: iPolar
Bortle Class: 5
Integration: PixInsight
Post processing: PixInsight, Photoshop
Captured Sep 23, 24 2022
Full Resolution at Astrobin: astrob.in/pdwup3/0/
Galassia di Andromeda - M31
Costellazione ANDROMEDA
2,5 M.A.L.
telescopius.com/pictures/view/232148/deep_sky/ngc-206/gal...
Acquisizione: 39 scatti da 300sec. + (25 Dark - 25 Flat - 25 Bias) - Dithering
Integrazione complessiva: 3h15m
Guadagno: 100
Temp. Camera: 0°C
Temp. Ambiente: 20°C
Bortle: 8
- Camera: ZWO ASI2600MC Air
- Tubo: Newton Tecnosky 600mm F4
- Correttore di coma Artesky 0.95x
- Filtro Banda Larga SVBony SV240
- Montatura: Skywatcher EQ AL55i Pro
- ASIAIR: Gestione/Acquisizione
- PIXINSIGHT + GRAXPERT + BlurXTerminator + Starnet: Allineamento, Somma, Correzione Gradienti , Deconvoluzione, Separazione Stelle e Riduzione Rumore
- PHOTOSHOP: Sviluppo finale
The Silver Coin or Sculptor Galaxy ( NGC 253 ) in the Sculptor constellation.
Star Chart -
Epoch: 2017.9.23
Grid: RA: 10 sec, Dec: 2 arcSec
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On the 23rd of September 1783, sitting before her telescope, in the field behind the house she shared with her brother William in Datchet, near Slough in the south of England, Miss Caroline Herschel "swept" the sky searching for new comets and never before seen star clusters and nebulae. On this occasion, way down in the sky, not far above the Southern horizon, in an area of the southern sky that Nicolas de Lacaille had called the “Apparatus Sculptoris” or “the sculptor’s studio", Miss Herschel saw and noted down a very bright and large nebula where one had never before been recorded.
This event was later recognised by her brother, Sir William Herschel, as the discovery, by Caroline Herschel, of the nebula he listed in his catalogue as H V.1.
In later years, her 'beloved nephew', Sir John Herschel, William's son, would record this 'nebula' as entry # 138 in his General Catalogue of Nebulae and Clusters of Stars ( eventually becoming the 253th entry in the New General Catalogue, NGC 253 ).
Whilst relatively close to us compared to the billions of far more distant galaxies in the Universe, the great size of the “Sculptor Galaxy” and the huge distances involved are still hard to comprehend. To put this into some perspective, the light that is just now reaching one edge of the great disc left the opposite edge when the Earth was in the grip of last great Ice Age 70,000 years ago and the light we now see has been travelling towards us for over 11 million years.
( More information can be found in my blog about the Sculptor Galaxy : stargazerslounge.com/blogs/blog/1519-the-sculptor-galaxy-... )
Mike O'Day
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Identification:
Sculptor Galaxy
Silver Coin Galaxy
Silver Dollar Galaxy
NGC 253
CH10 ( Caroline Herschel # 10 )
H V.1 ( William Herschel Class V, # 1 )
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Capture Details:
Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ).
Corrector: ASA 2" Coma Corrector Quattro 1.175x.
Effective Focal Length / Aperture : 1410mm f4.7
Mount: Skywatcher EQ8
Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2
Camera:
Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels)
Location:
Blue Mountains, Australia
Moderate light pollution ( pale green zone on darksitefinder.com map )
Capture ( 16, 17,19,20,22 Sept. 2017 )
8 sets of sub-images with exposure duration for each set doubling ( 2s to 240s ) all at ISO800.
273 x 240s + 10 each @ 2s to 120s
total around 18hrs
Processing ( Pixinsight - 24 Sept. 2017 )
Calibration: master bias, master flat and no darks
Integration in 8 sets
HDR combination
PhotometricColorCalibration
Links:
500px.com/MikeODay
photo.net/photos/MikeODay
www.flickr.com/photos/mike-oday
Pixinsight & Photoshop
23rd Sept 2017
( or 234 years to day since Caroline Herschel discovered the Sculptor Galaxy )
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Resolution ........ 0.586 arcsec/px
Rotation .......... -180.00 deg
Field of view ..... 58' 34.4" x 38' 51.6"
Image center ...... RA: 00 47 31.930 Dec: -25 17 05.13
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Links to my image galleries:
www.flickr.com/photos/Mike-ODay
My profile, astronomy related blogs and other content can be found on the StargazersLounge.com forum.
7 hrs total integration NB. RGB stars. 1000mm f/7.7 Quad Refractor. ASI 1600. Pixinsight RC Astro Photoshop. 5 min exposures X 83 total Narrowband filters. 30 min total 60X 30 sec RGB filters for stars. Calibration includes Bias, Dark Frame and Flat field removal. Preprocessing includes Deconvolution based sharpening, noise reduction and Star removal of each of 3 monochrome NB filters’ data. Each is brightened selectively to bring out subtle dark details, maintain contrast and dynamic range in the mid tones and protect the highlights from any more over-exposure. They are combined using the “Hubble palette” spreading them across the full RGB spectrum. Red is Sulphur II, an ionized, glowing gas. As are Hydrogen alpha, represented as green and Oxygen III shown in blue. Hydrogen, being the most prevalent atom in the universe also dominates the color of the image, turning it overwhelmingly green, aesthetically displeasing and scientifically deficient. Using a masking process concentrated on green pixels, the hues are shifted both toward the red and blue resulting in more aqua and gold in the image. It really helps show the differences and interactions of the 3 gases. And the true scientific data is in the monochrome images and really just hard numbers collected at the pixel level. So the color image is really about being a pretty picture. Which it is.
Luminance only, this is a work in progress.
Telescope: William optics star 71 f/4.9
Mount: Avalon linear fast reverse
Camera: CCD Atik One 6.0
Filter: Luminance
Guide:ZWO ASI290MM Mini (mono) + Skywatcher ed80
Process:CCD stack - Pixinsight - Photoshop CS6
Exposure: Luminance 60 exposures x 300sec
Total: 5 hours total
Location: Filiates Thesprotias - Greece
Γαλαξίας του Τριγώνου (γνωστός και ως Μεσιέ 33, Μ33 και NGC 598)
Ο Γαλαξίας του Τριγώνου βρίσκεται στον πολύ μικρό αλλά γνωστό από τον Ίππαρχο και τον Πτολεμαίο αστερισμό του Τριγώνου. Είναι ο αστερισμός <> των αρχαίων Ελλήνων, που πήρε το όνομά του από την διάταξη των άστρων του, που σχηματίζουν ένα τρίγωνο, ή το κεφαλαίο γράμμα Δέλτα. Σε πολλούς αστρικούς χάρτες ο αστερισμός αυτός μοιάζει με το σχήμα της Σικελίας, έτσι λοιπόν οι Σικελοί πίστευαν ότι ο Δίας είχε τοποθετήσει το νησί τους στον αστερισμό αυτόν, μετά από παράκληση της προστάτιδας του νησιού θεάς Δήμητρας.
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Ο γαλαξίας του Τριγώνου (γνωστός και ως Μεσιέ 33, Μ33 και NGC 598) είναι ένας σπειροειδής γαλαξίας σε απόσταση τριών εκατομμυρίων ετών φωτός στον αστερισμό Τρίγωνον. Είναι ο δεύτερος κοντινότερος σπειροειδής γαλαξίας στον γαλαξία μας μετά τον Γαλαξία της Ανδρομέδας και ανήκει στην Τοπική ομάδα γαλαξιών.
Πιθανότατα ο γαλαξίας του Τριγώνου ανακαλύφθηκε από τον Hodierna to 1654. Ο Σαρλ Μεσιέ τον ανακάλυψε ανεξάρτητα τις 25 Αυγούστου 1764.
Το εσωτερικό μέρος του γαλαξία αποτελείται από δυο φωτεινούς σπειροειδείς βραχίονες, στους οποίους υπάρχουν πολλές περιοχές σχηματισμού άστρων. Το δέκα τοις εκατό του αερίου του γαλαξία βρίσκεται σε αυτήν την κατάσταση, δηλαδή σε νεφελώματα.
Γύρω στα 54 σφαιρωτά σμήνη έχουν ανιχνευτεί στον γαλαξία Μεσιέ 33, αλλά ο πραγματικός αριθμός εκτιμάται γύρω στα 120 ή και περισσότερα. Η ηλικία τους θεωρείται ότι είναι μικρότερη από αυτήν των αντιστοίχων στο Γαλαξία μας. Τα λαμπρότερα από αυτά που φαίνονται σε ένα τηλεσκόπιο 50 εκατοστών.
Ο γαλαξίας του Τριγώνου έχει διάμετρο 50.000 έτη φωτός και υπολογίζεται ότι φιλοξενεί 30 με 40 δισεκατομμύρια αστέρες. Αυτά τα μεγέθη κατατάσσουν τον Γαλαξία του Τριγώνου ως το τρίτο μεγαλύτερο μέλος της Τοπικής Ομάδας γαλαξιών μετά τον Γαλαξία της Ανδρομέδας (1 τρισεκατομμύριο άστρα) και τον Γαλαξία μας (400 δισεκατομμύρια άστρα).
The Rosette Nebula is a cloud of dust containing enough gas and dust to make about 10,000 stars like our Sun. In the centre of the nebula is a cluster of hot, bright young stars. These are warming up the surrounding gas and dust, making it appear bluer. The small, bright white regions are cocoons of dust in which huge stars are currently being born. These “protostars”, each one of which will probably become a star up to ten times more massive than the Sun, are heating up the surrounding gas and dust and making it clow brighter. The smaller, redder dots on the left side and near the centre of the image also contain protostars, but these are smaller, and will go on to form stars much like our Sun. Just as the centre of the nebula contains bright young stars, in a few tens or hundreds of millions of years these stars will have died, but the protostars will have evolved into fully-fledged stars in their own right. In this way, the star formation will move outwards through the nebula.
While the main and most prominent object in this image is the Glowing California Nebula otherwise known as NGC 1499, there is much dust and in this annotated version an abundance of distant galaxies are also visible. It only takes 1000 years for light to reach us from the California Nebula, yet in this very same image we are looking at photons that left the distant elliptical galaxy IC 2027 287 million years ago.
Captured from Grand Mesa Observatory in Western Colorado over 3 nights using the QHY128C Full Frame One Shot color CMOS camera on one of the Twin Takahashi E-180 Astrographs “System 4a” and available from their legacy data archive: grandmesaobservatory.com/legacy
Total Integration time 13 hours
Image details
Terry Hancock downunderobservatory.com
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
Dates of capture: December 30th 2019, 14th, 17th January 2020
Color RGGB 785 min, 157 x 300 sec
Camera: QHY128C Color CMOS
Calibrated with flat, Dark & Bias
Optics: Takahashi E-180 Astrograph
Filter UV-IR Cut by Optolong
Image Acquisition software Maxim DL6
Pre Processed in Pixinsight
Post Processed in Photoshop
Star Reduction with Starnet
Sharpless 101 (Sh 2-101) is a H II region emission nebula located in the constellation Cygnus. It is sometimes also called the Tulip Nebula because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years from Earth. Sh 2-101, at least in the field seen from Earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes. (Explore Scientific ED127, ZWO ASI2600MM, ASIAIR, EAF, EFW, AM5, Antlia SHO 3nm, Pixinsight, Photoshop).
Second light TS-Optics Photoline 140mm F6.5 with again a terrible seeing....but because the previous session on M51 was really disturbed by bad transparency, i did another session to have more images to stack. Also in the second session sky transparency was not good.
Total of 6h exposures
TS-Optics Photoline 140mm F6.5
ZWO ASI 294 MC + L-Pro
iOptron CEM70G
Seeing 4/10
Transp 2/5
Astrometry www.astrobin.com/full/xtngwf/0/
Distance 1000 Lj
Equipment:
10" f/4 ONTC Newton
Starizona Nexus 0.75x
SVBONY SV605CC
Pegasus NYX-101
Guding:
Lodestar OAG
PHD2
55x60s Gain 100
30.10.2025
Processing: PixInsight
I have been playing with this for some time, unable to get a result I was totally happy with. Still not 100% convinced, but at least this version has some elements I am pleased with.
The main point I'm not pleased with is the core is totally blown out - and this is from just 3 min sub exposures. If I have chance I may try some very short Luminance shots and have play with the HDR combine tool in PI.
LRGB image captured with Orion ED80T CF & Atik 314l+, processed in Pixinsight and CS5
The Andromeda Galaxy, also known as Messier 31, M31, or
NGC 224 (as seen from the Southern Hemisphere).
M31 is a large Spiral Galaxy approximately 2.5 million light-years from Earth. It is the nearest major Galaxy to the Milky Way, in the constellation of Andromeda. At approximately 220,000 light-years across, it is the largest Galaxy of the Local Group, which also contains the Milky Way Galaxy, the Triangulum Galaxy, and about 44 other smaller Galaxies.
About this image:
In the Southern Hemisphere (at my latitude), M31 is only visible low on the horizon in the early morning hours just before sunrise. The weather conditions were challenging, as it was very cold, windy and then dew and frost followed. This sequence of stacked images were photographed in the middle of Winter in the rural dark skies of the Freestate, South Africa.
Gear:
GSO 6" f/4 Imaging Newtonian Reflector Telescope.
Baader Mark-III MPCC Coma Corrector.
Astronomik CLS Light Pollution Filter.
Celestron SkySync GPS Accessory.
Orion Mini 50mm Guide Scope.
Orion StarShoot Autoguider.
Celestron AVX Mount.
QHYCCD PoleMaster.
Celestron StarSense.
Canon 60Da DSLR.
Dew-Not Heater.
Tech:
Guiding in Open PHD 2.6.1.
Image acquisition in Sequence Generator Pro.
Lights/Subs: 25 x 120 sec. ISO 3200 CFA FIT Files.
Lights/Subs: 15 x 60 sec. ISO 6400 CFA FIT Files.
Calibration Frames:
50 x Bias (at each ISO)
30 x Darks (at each ISO)
Pre-Processing and Linear workflow in PixInsight,
and finished in Photoshop.
Astrometry info:
nova.astrometry.net/user_images/1221463#annotated
RA, Dec center: 10.4852224357, 41.3730582693 degrees
Orientation: 1.23816775908 deg E of N
Pixel scale: 5.84085388796 arcsec/pixel
Martin
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SHO 96X300sec RGB stars Askar 130mm f7.7 Quad refractor ASI 1600. Ioptron, ZWO everything else Pixinsight RC Astro PS.
59x120s exposures, Askar PRO 180 mm and Uranus-C camera on iOptron HAE29 mount. Taken from Lika, Croatia. Processing in PixInsight.
NGC2736 LRGBHaOIII
Planewave 17” CDK
Camera: FLI ML16803
Filter: Chroma L,R,G,B
Focuser: IRF90
Focal Length: 2939mm
Focal Ratio: f/6.8
Mount: 10 Micron GM3000
Location: Deep Sky West, Chile
36h of LRGBHaOIII data, combination in PixInsight done:
L: 30 x 300sec
R: 25 x 300sec
G: 30 x 300sec
B: 24 x 300sec
Ha: 32 x 1800sec
OIII: 22x 1800sec
Lunt 60, ASI174
Mosaïque de 4 panneaux
Barlow X2 pour la protubérance
AS3!, Registax 6 et... PixInsight ;)
IC410 is a colourful nebula in Auriga, sometimes called the Tadpole Nebula as a result of the little swimmers on it's edge.
The red colours come from ionised hydrogen gas and the blue tints come from scattered light reflecting off gas from nearby stars.
Camera: QHY163M
Scope: Skywatcher MN190
Focal length: 1000mm f/5.2
Exposure: 12x300s(R); 8x300s(G); 6x300s(B) all binned 2x2
This is the last image I'll take with this camera as I've now sold it as I consolidate my equipment and prepare for some new imaging challenges.
Taken 06/01/2021 from Cumbria (UK). Processed with Pixinsight and Photoshop.
V. II of this image re-processed for better color
Here is a late processing of a widefield target from earlier this fall. This field contains two major galaxies The Andromeda Galaxy(M31) and Triangulum galaxy (M33).
The IFN "integrated flux nebula" is a very faint dust cloud which reflects light emitted by our milky way. IFM and ISM, interstellar medium, can be spotted sweeping across vast areas of our skies. There are several surveys which have mapped out the IFN whihc can be very helpful for identifying faint structures. It is very difficult to discern between gradients and ifn when processing structures this faint. I was able to pull a strong luminance image from the green channel and bring out the faint nebulosity by blending with the original image.
The light frames listed below are referring to how many exposures of the deep sky object were taken and also the length of each exposure which are used for stacking in the program pixinisght, the dark, flat, and bias frames are calibration frames which help to eliminate different types of noise, vignetting, and dust on the sensor. It requires many hours of work to produce just one astrophotography image.
This image is 70 x 90s subs at iso 1600 using a full spectrum T2i and astronomik uv/ir cut clip filter. Lens was a pentax-m 50mm F1.7 stopped to F4
Version 2
This is a re-process using Pixinsight. Less contrast, better controlled stars/less bloating, over all more natural looking.
Version 1 here: www.flickr.com/photos/80205804@N05/15399069138/
M39 is an open cluster made up of around 30-50 stars in the summer constellation of Cygnus the swan. It is located around 800 light years away (1 light year = 6 trillion miles) and is estimated to be around 300 million years old. These stars are very young and hot which is shown by their blue colour, compare these to our star which is 4.5 billion years old.
With the constellation Cygnus lying on the galactic plane, the cluster sits in front of millions of other solar masses that make up our Milky Way galaxy, and this is only a tiny portion of our night sky.
The aim here was to use longer exposures to try and bring out some of the dust globules in the area which you dont see captured too often. I did pick up a little but sacrificed star size.
Exposure Details:
85* 300 secs, 36* 600 secs, ISO 800, calibration frames, 805mm
Total Exposure: 13 hours
Scope: Altair Astro 115EDT
Camera: Canon 1100D
Mount: NEQ6
Captured over 3 nights this image has gradually grown as I've adapted my set-up for the Atik 460ex. Initally the chip to reducer distance caused some elongated stars in the corners, I then found the larger chip picked up a light leak in my filterwheel, which I replaced.
The image is made up of 10 minute sub exposures combined and processed in Pixinsight and CS5.
Imaging OTA Altair Astro 6"RC.
Imaging camera Atik 460ex
The Rosette Nebula is a cloud of dust containing enough gas and dust to make about 10,000 stars like our Sun. In the centre of the nebula is a cluster of hot, bright young stars. These are warming up the surrounding gas and dust, making it appear bluer. The small, bright white regions are cocoons of dust in which huge stars are currently being born. These “protostars”, each one of which will probably become a star up to ten times more massive than the Sun, are heating up the surrounding gas and dust and making it clow brighter. The smaller, redder dots on the left side and near the centre of the image also contain protostars, but these are smaller, and will go on to form stars much like our Sun. Just as the centre of the nebula contains bright young stars, in a few tens or hundreds of millions of years these stars will have died, but the protostars will have evolved into fully-fledged stars in their own right. In this way, the star formation will move outwards through the nebula.
Flourostar 91mm
ZWO 2600 MC Pro
EQ6-R Pro mount
57x3min frames
Pixinsight/Photoshop/ Topaz
Leyburn, Queensland 18 Feb
Sh2-155 with a Rokinon 135
Camera: QSI 583 WSG5
Filter: Astrodon LRGBH
Focuser: Robofocus
Focal Length: 135mm
Focal Ratio: f/2.0
Pixel Size: 5.4μm
Image Scale: 8”
Mount: Astro-Physics Mach1 GTO
Location: Deep Sky West, New Mexico
13,3h of LRGBH data, integration in PixInsight done:
L: 36 x 300sec
R: 27 x 300sec
G: 26 x 300sec
B: 35 x 300sec
Ha: 36 x 300sec
An underrated area of the Gamma Cygni nebula IC 1318 - vdB 134 is a reflection nebula, reflecting the light of ω1 Cygni about 869 ly distant.
Toward the bottom of the frame is planetary nebula PLN 86 + 5 1.
128 * 3min lights OSC data with a Skywatcher 8" Quattro and Neodymium filter, lots of biases, flats and darks processed in APP, PI and Affinity.
During the mosaic processing in Pixinsight the program reported a starcount of about 1 Mio stars in the field of view The FOV itself is 16°x10° , imaged as a 9 panel mosaic in June 2024
The panels were recorded in 32 hours at my remote observatory in Hakos-Namibia with a Redcat 71 and ZWO ASI6200MC camera on an Ioptron GEM28EC mount
Leo Triplet.
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It is a small group of galaxies located in the constellation Leo, located 30-35 million light-years away from Earth. This group is one of the most popular targets for both astrophotography and visual observations, January-April being the best time to image these galaxies.
As a brief individual presentation, these 3 galaxies are as follows:
NGC 3628 (the one on the left), also known as the Hamburger Galaxy, due to its shape as we see it - is about 35 million light-years away and is surrounded by a cloud of stellar dust that hides most of the galaxy.
Messier 65 (top right in the attached image) - is the smallest of the 3 galaxies and also the closest to Earth ("only" 31 million light-years away).
Messier 66 (the one on the right) - is the brightest galaxy in the group and is 35 million light-years away. According to specialists, this galaxy is the largest in the group, with a diameter of about 95,000 light-years, almost as big as our galaxy.
Technical info :
Mount: Skywatcher EQ6R Pro.
Telescope: Skywatcher 150PDS
Camera: ASI 533MC Pro.
Total exposure: 9 hours ( 180 light frames x 3 min ).
Stacking with Deep Sky Stacker.
Edit in Pixinsight.
Location : my Bortle 6+ backyard.
Photos taken back in April, through veils of high clouds which frustrated me enough at the time that I gave up and didn't even bother with darks or flats. But still, I thought the holidays would be a good time to try it on PixInsight and DxO as an "exercise".
Stack of 21 x 120s exposures at 240mm focal length, F5.6 and 1600ISO.
Some more old data from my old set up, I've tried this one before using the nbrgb combination script in pixinsight, but it never really turned out how I wanted. This version I used Bill Blanshans RGB stars to NB script and got a much better result.
Frames:
Astrodon H-alpha 3nm: 45×1200″(15h)
Astrodon OIII 5nm: 30×1200″(10h)
Astrodon SII 5nm: 23×1200″(7h 40′)
Astronomik Deep-Sky Blue: 6×600″(1h)
Astronomik Deep-Sky Green: 6×600″(1h)
Astronomik Deep-Sky Red: 6×600″(1h)
Total Integration:
35h 40′
Gear used-
Camera - QSI583WSG
Telescope - William Optics GT81
Guidecam - Starlight Express Lodestar
Mount - HEQ5PRO
Captured using SGPro
Processed in Pixinsight
Astrobin
My Astrobin gallery www.astrobin.com/users/tonymacc/