View allAll Photos Tagged Starcluster
The constellation of Scorpius lies in the general direction of the galactic core of our Milky Way galaxy. As a result, myriads of star clusters and nebulae can be found within the boundaries of the constellation. This 12 panel mosaic attempts to capture as much detail in the constellation as possible by combining the view through a 90mm lens together to cover the entire well known region of Scorpius.
Technical details:
10X30s
5X30s (with Softon Filter)
12 panel panorama combined
Sony A7S + Leica 90mm Elmarit f2.8@f4 ISO2000
Skywatcher Star Adventurer tracking mount (unguided)
Median stacked in Photoshop
Panorama stitched in PTGUI
Amas globulaire M3 (NGC5272) situé dans la constellation du Chien de chasse.
Acquisition:
Rising Cam IMX571 color + Zenithstar73
iOptron CEM26 + iPolar
Filtre Optolong L-Pro
ZWO ASI224MC + WO Uniguide 120mm
NINA & PHD2
Gain 101 -- Offset 901 -- Cooled -5 celcius
20x3min
35x2min
Stacked 80%
Traitement/processing :
Siril & Gimp
AstroM1
(rsi1.2a)
Taken w/ Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D7500.
45 lights x 60 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop
A framing of some of the star clusters and nebulas in western Gemini and northern Orion, taken on a partly hazy night adding the star glows to accentutate their colours.
At bottom is the nebula NGC 2174, the Monkey Head Nebula, over the border in Orion. At centre near the orange star Propus is the supernova remnant IC 443 in Gemini. The fainter diffuse nebula IC 444 is at left near the star Mu Geminorum, aka Tejat Posterior. The area around IC 444 contains the large star cluster Collinder 89. At top right is the large star cluster Messier 35 with its smaller companion cluster NGC 2158. The field is filled with bright but cool orange giant stars and hot blue stars.
This is a stack of 9 x 5-minute exposures taken with the sky relatively free of clouds, blended with a stack of 6 x 5-minute exposures when the sky was hazy (but not too hazy!), to add the star glows. All with the SharpStar 61mm EDPH refractor with its flattener/reducer at f/4.5, and filter-modified (by AstroGear.net) Canon R camera at ISO 800. Autoguided and controlled with the ASIAir Mini, and on the Sky-Watcher Star Adventurer GTi small equatorial mount, taken as part of testing this combination of gear. The polar alignment was off slightly but at this scale didn't hurt each sub-frame much. But the field rotated slightly from frame to frame. Each frame was dithered (shifted a few pixels) by the ASIAir to eliminate thermal noise pixels when stacking the images. Taken from home March 15, 2023.
Nebulosity brought out with luminosity masks created with Lumenzia, plus with a starless layer created with Star XTerminator, and with a layer created with the Nebula Filter action with PhotoKemi Actions. All stacking and blending in Photoshop.
NGC869 and NGC884, the Double Cluster in Perseus.
About 7500 light-years distant, about 12.8 million years old, including the surrounding star haloes, the combined two clusters are estimated to have a mass of 20,000 solar masses.
Skywatcher Quattro 8"
Altair Astro 26C camera at gain 100, -10ºC
60 lights @ 180s
Darks, biases and flat calibrations
Stacked in siril, tweaked in siril and Affinity.
This is one of the best known regions of ionized hydrogen in our skies. Located in Sagittarius near the point of the winter solstice, the Lagoon Nebula is a sprawling region of active star formation about 4,000 light years away. Where are the stars forming? You have to look for the dark knots of material in this image. Those dusty regions are where the density is high enough to block the background light from nebula. That is where gravitational collapse is causing enough material to come together to make new stars.
I used Atk Hα and OIII narrowband filters with an Atik 414-EX monochrome camera on a Celestron Edge HD 925 with HyperStar to take sets of 2 minute guided exposures. The HyperStar filter slider system made it easy to switch from one filter to the other. This was shot entirely from light polluted skies in Long Beach, CA. Hydrogen data was mapped to R, and oxygen data to G and B. This is two panels combined as a mosaic. Preprocessing in Nebulosity; stacking, channel and mosaic combination, and processing in PixInsight; some final touches in Photoshop.
The image spans an area of 68' by 54' at a scale of 2.5"/pixel.
Image center is near RA 18h 3m 43s, DEC -24° 19'.
This is my favorite region to shoot in the entire night sky. Where else can you get such a jaw-dropping splash of red, blue, and yellow-gold nebulosity - and a globular star cluster (M4) thrown in for good measure - all in one frame? And the trails of dark nebulosity confer an impression of motion - as if the colorful fireworks are shooting forward. But the object has always been a bear to process for me, and this image has "technical difficulties," but I will come back to it later and work on improving it.
This is a stack of 52 tracked (not guided) 90-second exposures taken with a stock Fujifilm X-T10 camera and Samyang 135mm f/2 lens at f/2, ISO 1600. The images were stacked in DSS and processed in Astro Pixel Processor (APP) and Photoshop. No calibration frames were applied for this image. I took flat frames but the stacking in DSS yielded a very gray image that was hard to coax any color out of, so I'll have to go back and look at what's going on there. Fortunately, APP is very good at removing gradients and vignetting, so flat frames are not really needed - for this setup anyway.
There was a lot of smoke in the air from nearby controlled burns, which I think cut down the transparency. I had to exclude a number of the early exposures because the stars were massively bloated due to light scattering by the smoke. The camera was mounted on an Orion Sirius EQ-G equatorial mount, which provided the tracking.
Equipment:
Scope: Lacerta 72/432 F6 0.85x reduktorral (367mm F5.1)
Mount: Skywatcher EQ-5 Pro Synscan Goto
Guiding: OAG
Guide camera: ZWO ASI120mm Mini
Main camera: ZWO ASI183MM-Pro cooled monochrome camera
Accessories:
ZWO ASIAIR Pro
ZWO EFW 8x1.25"
ZWO EAF
ZWO OAG
ZWO 1.25 Helical focuser
Lacerta Dew-heater 30cm
Programs:
PixInsight
Adobe Photoshop CC 2020
Details:
Camera temp: -15°C
Gain: 53
Astronomik L-3 UV-IR Block: 50x180s
Astronomik Deep-Sky R: 20x180s
Astronomik Deep-Sky G: 20x180s
Astronomik Deep-Sky B: 20x180s
NGC 457 è un ammasso aperto in Cassiopea, chiamato anche Ammasso Civetta per via della sua particolare forma: infatti è caratterizzato dalla presenza di due stelle luminose di sesta magnitudine da cui parte una concatenazione di astri che ricordano le ali di un uccello in volo; le due stelle luminose sono gli "occhi" della civetta.
L’ammasso è composto da una sessantina di stelle e dista circa 8000 anni luce: è un ammasso giovane, avendo una età stimata attorno ai 21 milioni di anni.
Sullo sfondo sono visibili innumerevoli galassie.
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NGC 457 is an open cluster in Cassiopeia, also called Owl Cluster due to its particular shape: in fact it is characterized by the presence of two bright stars of sixth magnitude from which a concatenation of stars that resemble the wings of a bird in flight starts; the two bright stars are the "eyes" of the owl.
The cluster is made up of about sixty stars and is about 8000 light years away: it is a young cluster, having an estimated age of around 21 million years.
Countless far galaxies are visible in the background.
Technical data
Image taken in October 2021 from Promiod (Aosta Valley, Italy)
RC12 GSO Truss (diameter 304mm, focal lenght 2432mm)
Mount GM2000 HPSII
CCD Moravian G3-16200 with filters Astrodon Tru-Balance Gen2 E-Serie RGB
Exposures and sensor temperature:
R 19x300" bin2 -25C
G 18x300" bin2 -25C
B 17x300" bin2 -25C
Total exposure time 4h30'
Guide with OAG Moravian and Moravian camera G1-0301
Sw used: Voyager, Pixinsight 1.8, Photoshop CS5
Taken w/ Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D7500.
100 lights x 60 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop
Over 150 globular star clusters populate the Milky Way Galaxy. Many formed early in the evolution of the galaxy and are distributed in a roughly spheroidal halo extending above and below the galactic plane. The four clusters in this composite image were captured with the same telescope and camera under similar conditions and are identically scaled, allowing us to see how they compare as viewed from earth. Each photo spans just under 0.5 degrees on a side, or about the width of the full moon.
Telescope: Celestron EdgeHD 8 @ f/7 (1422mm focal length)
Camera: QSI 683wsg
Mount: Astro-Physics Mach1GTO
Integration: ~10 mins per channel (10 x 1 mins subs)
Post Processing: PixInsight 1.8, Adobe Photoshop
A framing of the area in Gemini containing the large and bright star cluster Messier (M) 35 at right and the curving Jellyfish Nebula, aka IC 443, at left, near the star Propus or eta Geminorum. The small but rich star cluster below M35 is NGC 2158 . The blue reflection nebula above the Jellyfish is IC 444. The Jellyfish is a supernova remnant some 1500 light years away and about 21 light years across.
This is a stack of 6 x 8-minute exposures and 8 x 4-minute exposures, all at ISO 800 with the Canon EOS Ra red-sensitive camera, and through the SharpStar 94mm apo refractor at f/4.5 with the EDPH field flattener/reducer. The later shorter exposures were shot with the field getting low in the west and into the murk and light pollution on an early April evening. I shot these as part of testing the new SharpStar 94mm EDPH refractor. No nebula filter was employed here.
Luminosity masks with Lumenzia applied as well as a layer of contrast boost applied to the nebulas using the Pro Contrast filter in the Nik Collection Color EFX Pro set of filters.
All stacking and blending was with Photoshop. No dark frames taken or applied, just dithering applied between exposures to shift each image by 5 pixels. Auto-guiding, camera control and dithering were with the Lacerta MGEN3 stand-alone auto-guider.
This stack of 18 images contains nearly the entirety of the constellations Andromeda, Cassiopeia, and Perseus. Numerous outstanding objects are within its bounds. From left to right (roughly east to west), they include:
The Pleiades (M45, lower left corner)
The California Nebula (NGC 1499, above the Pleiades)
The Double Cluster in Perseus (NGC 869 and NGC 884, near top center)
The Heart and Soul Nebulae (IC 1805 and IC 1848, above the Double Cluster)
M34 (open star cluster, bottom center)
The Triangulum Galaxy (M33, along the bottom border, right of M34)
The Andromeda Galaxy (M31 and satellite galaxy M110, bright elongated object in lower right area of image)
Subframes were taken with an astrophotography modified Nikon D5100 at ISO 4000 and focal length of 18mm. Stacking and processing in PixInsight, with a few final touches in Photoshop.
The solution for the image from astrometry.net places the center at
RA 2h 3m
DEC +50° 20'
28 et 29 octobre et 2 novembre 2022
43 x 5min = 215min (ISO200)
Acquisition:
Nikon D5300 + Zenithstar 73
iOptron CEM26 + iPolar
Filtre Optolong L-Pro
ZWO ASI224MC + WO Uniguide 120mm
Astro Photography Tool (APT) & PHD2
Traitement/processing :
Siril & Gimp
AstroM1
(rsi3x.2)
At a distance of just 200,000 light years, the Small Magellanic Cloud is one of the most distant objects we can see with the naked eye (from the southern hemisphere). SMC is home to several hundred million stars including some of the closest neighbors to our Milky Way Galaxy. It's thought to have had a barred spiral shape in the past but that was disrupted by our own Milky Way Galaxy - giving us the dwarf irregular galaxy we see today.
I captured this image (from my home in Colorado) using iTelescope.net's T8 telescope based in their Siding Spring Observatory near Coonabarabran, New South Wales in Australia. I captured 42 images over 2 nights (in a 2x1 mosaic) and processed them with Astro Pixel Processor and Photoshop.
M71 is a Globular Star Cluster in the constellation Sagitta, set against a rich backdrop of stars in the Milky Way.
Captured in June of 2024 under dark skies near Goldendale, WA.
Telescope: William Optics ZenithStar 110mm f/7
Reducer: Astro-Tech 0.8x
Camera: Modified Canon 450D (XSi)
Mount: iOptron iEQ45 Pro
Integration: 45 min (9 x 5 min)
Processing Software: PixInsight 1.8, Adobe Lightroom Classic
Messier 34 est un amas ouvert (nommé M34 ou NGC 1039), situé dans la constellation de Persée. Il a été découvert par l'astronome italien Giovanni Battista Hodierna, la date réelle de cette découverte n'étant pas connue avec précision, la seule chose dont on soit certain étant qu'il l'a observé avant 1654, puisque l'amas figurait dans le catalogue qu'il a publié à cette date. L'amas a été observé le 25 aout 1764 par Charles Messier qui l'a ajouté à son catalogue comme M34.
Messier 34 (also known as M34, NGC 1039, or the Spiral Cluster) is a large and relatively near open cluster in Perseus. It was probably discovered by Giovanni Batista Hodierna before 1654 and included by Charles Messier in his catalog of comet-like objects in 1764. Messier described it as, "A cluster of small stars a little below the parallel of γ (Andromedae). In an ordinary telescope of 3 feet one can distinguish the stars.
(source : wikipedia)
= Acquisition =
William Optics Zenithstar 73ii (FL 430mm)
Risingcam IMX571 OSC
iOptron CEM26
WO UniGuide 50/200 + Touptek GPM462M
NINA & PHD2
= Séances photos =
17 et 18 octobre 2024
-- Filtre L-Pro 60sec x 210 (exp. 3h40)
@Astrobox 2.0 -- St-Jean-sur-Richelieu, Québec -- Bortle 9
= Traitement/processing =
Siril & Affinity Photo 2
Temps d'exposition post-traitement : 3h
AstroM1
Taken w/ Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D7500.
130 lights x 60 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop
A re-edit of an older shot that I was never quite happy with. A carpenter bee (Xylocopa virginica, I think) visiting pentas flowers in the Huntsville Botanical Garden, with a little hitchhiker catching a ride on his wing! (Zoom to see him.) On pentas lanceolota or Egyptian starcluster.
Pentas lanceolata, commonly known as Egyptian starcluster, is a species of flowering plant in the madder family, Rubiaceae
First one of the year for me and I took this using a sub $300 lens, the Nikkor Z 28mm 2.8. I'm pretty impressed actually. Is it perfect? Nope, but can you get a good milky shot with yet? Yep, you sure can! But I am seriously considering investing in the Nikkor 24 1.8 S as I think it would be significantly better for milky way photos. But either way, I had a lot of fun capturing our galaxy again!
For a brief time (two nights) once every 8 years Venus appears to be at the edge of the Pleiades, also known as the Seven Sisters.
The Pleiades is an open star cluster of approximately 1,000 stars, though seven more brilliant than the others. The star cluster was used by the early mariners in the Mediterranean Sea.
Galileo was the first astronomer to view the Pleiades through a telescope, and he produced a map of it that included 36 stars, but he was aware that there were many more.
Messier 2 or M2 (also designated NGC 7089) is a globular cluster in the constellation Aquarius, five degrees north of the star Beta Aquarii. It was discovered by Jean-Dominique Maraldi in 1746, and is one of the largest known globular clusters
Description: This image of the Pleiades Star Cluster M45 was developed by me from 120x300s subs or 10.0 hours of total exposure time.
Date / Location: 9-11, 13, 14, 16-19 December 2022 / Washington D.C.
Equipment:
Scope: WO Zenith Star 81mm f/6.9 with WO 6AIII flattener/focal reducer x0.8
Cooled camera: ZWO ASI 2600MC Pro at 100 Gain and 50 Offset
Mount: iOptron GEM28-EC mount
Guider: ZWO Off-Axis Guider
Guide camera: ZWO ASI 174MM mini
Focuser: ZWO EAF
Light pollution filter: Chroma LoGlow Broadband Light Pollution Reduction Filter - 2"
Software: Pixinsight
Processing Steps:
Preprocessing: I preprocessed 120x300s subs (= 10.0 hours) in Pixinsight to get an integrated image using the following process steps: Image Calibration > Cosmetic Correction > Subframe Selector > Debayer > Select Reference Star and Star Align > Image Integration.
Linear Postprocessing: Rotation > Dynamic Crop > Dynamic Background Extractor (both subtraction to remove light pollution gradients and division for flat field corrections) > Background Neutralization > Color Calibration > Noise Xterminator.
Nonlinear Postprocessing and additional steps: Histogram Transformation > Local Histogram Equalization > Curves Transformation > SCNR Noise Reduction. Multiple passes of Histogram Transformation, Local Histogram Equalization and Curves Transformations were made in small doses.
Taken on the night of 2021-10-08 from Cambria, CA. There's subtle light on the rocky coast and ocean from the hotels and restaurants behind me. Scorpius is just disappearing into the water, with Venus in its claws. It wasn't bright enough to pick up visually, but light from Venus is reflecting off the Pacific Ocean. The Milky Way stretches up through the constellations of Sagittarius, Scutum, and Serpens.
The sky is a stack of 31 30 s exposures at ISO 6400 with a Nikon D5100 modified for astrophotography. The camera was mounted on a polar aligned omegon Minitrack LX2. The shore and ocean are from one image in that stack. The sky was stacked and processed in PixInsight, and the foreground and sky were composited in Photoshop.
Naples, FL
February 7, 2024
Equipment--
Telescope: Explore Scientific ED 80, field flattener (no reducer), 480mm focal length
Mount: Sky-Watcher EQ6R-Pro
Camera: ZWO ASI294MC-Pro
Guide scope: Williams Optics 50mm guide scope
Guide camera: ZWO ASI120MM-S
Software: NINA, PHD2
Imaging--
Lights: 29x300s
Darks, Flats, DarkFlats, Bias: assorted
Sensor temp: -10.0
Filter: Optolong L-Extreme
Sky: Bortle 5 (nominal)
Post processing--
Software: PixInsight, Photoshop
This is a recent (last month) image I took while I was at Europe's first Dark Sky Reserve place, UK's National Exmoor park. The sky there is phenomenal. Galaxies like Andromeda and Triangulum are easily seen with the naked eye with direct vision! I had my astrograph with me, so I couldn't say no to IC 1396 :)
Date: 17th September 2020
Location: Brayford, North Devon near Exmoor, GMT+0, United Kingdom, TEMP: 16C, Bortle Class 3 ~SGM: 21.73 mag./arc sec2
Equipment:
Camera: Nikon D810A
Imaging Telescope: Takahashi FSQ-85ED
Correcting Lens: Takahashi Reducer-QE 0.73x (composite focal length at 328mm and focal ratio at f/3.8)
Mount: iOptron CEM25EC
Tech Details:
Image Quality 14 bit RAW (NEF)
Exposure time per image / number of composites and sensitivity: ISO 3200, 14 x 180" subs
Calibration Frames: 25 Darks, 50 Bias, 25 Flats
Software: PixInsight 1.8.5 Core, Lightroom, Photoshop
Total integration time: 42 minutes (14 x 3 mins)
Website: astrotakis.com
This object is a globular cluster that was first identified as non-stellar by Edmond Halley in 1677. It is 17,000 light-years from Earth in the constellation Centaurus. This is the largest globular cluster in the Milky Way Galaxy's halo with a diameter of about 150 light-years, and it is comprised of approximately 10 million stars that orbit a common center of gravity. The cluster is 12 billion years old and contans 4 million times the sun's mass. This is a very dense cluster with individual stars packed very closely to one another. The average distance between two stars is about 0.1 light year. This compares to our Sun's nearest stellar neighbor, which is 4 light years away.
Omega Centauri's appears in Earth's sky as a 3.9 magnitude object that is 36 arcminutes in diameter. This means that it can be seen with the unaided eye appearing as a fuzzy star-like object, and with a small telescope appearing about the same size as the full moon. As this is a southern hemisphere constellation, it is best observed from southern locations like the Florida Keys or even further south.
The small galaxies that can be seen within the frame have a reddish appearance that is due to the object being situatued close to the plane of the Milky Way Galaxy. This is because higher concentrations of dust and gas in this direction more easily pass red light while scattering other colors of the spectrum.
Observing Report for February 17/18, 2023
Trip Report for Winter Star Party, February 13 - 19, 2023, Scout Key, Florida.
EQUIPMENT
ZWO ASI6200MM-Pro/EFW 2" x 7 (LRGB)
Tele Vue NP101is/Large Field Corrector (4", f/5.4)
Losmandy G11
Autoguiding with PHD2
CAPTURE
Object was about 17 degrees above the horizon when captured at approximately 0300 local time.
Captured in NINA (1 hour total integration)
L: 95 x 20s
RGB: 30 each filter x 20s
PROCESSING
PixInsight with WBPP, DBE, LinearFit, SPCC, BlurXTerminator, NoiseXTerminator, and HDRMT.
La Comète C/2017 K2 (PanStarrs) passant près de l'Amas globulaire Messier 10 (M10, NGC6254) dans la constellation d'Ophiuchus (Serpentaire).
Wikipedia: Comète C/2017 K2 (PANSTARRS)
-- est une comète non périodique qui suit une orbite hyperbolique, et qui a été observée pour la première fois le 12 mai 2013 par l'observatoire Canada-France-Hawaï (CFHT) à Hawaï. Elle a été repérée et caractérisée en mai 2017 par le programme d'exploration Pan-STARRS, piloté depuis l'observatoire du Haleakalā, toujours à Hawaï.
-- is an Oort cloud comet with an inbound hyperbolic orbit, discovered in May 2017 at a distance beyond the orbit of Saturn when it was 16 AU (2.4 billion km) from the Sun.
Nikon D5300 + Zenithstar 73
iOptron CEM26 + iPolar
SVBony CLSfilter
ZWO ASI224MC + WO Uniguide 120mm
35 x 2 min -- ISO800
AstroM1
(r2a.2com)
Joyaux du ciel d'hiver (dans l'hémisphère nord) qui scintille dans la constellation du Taureau.
L'origine du nom « Pléiades » provient de la mythologie grecque : les Pléiades sont sept sœurs, filles d'Atlas et de Pléioné : Astérope, Mérope (ou Dryope), Électre, Maïa, Taygète, Célaéno (ou Aéro Sélène) et Alcyone (extrait Wikipédia).
Le voile bleu qui entoure les étoiles ne serait pas un reste de leur nébuleuse d'origine, mais un nuage "croisé en chemin".
Nikon D7500 and Sigma 100-400
about 20 exposures of 30s at ISO 800 combined with Deepskystacker.
Tracking with Skywatcher Staradventurer.
Taken from Weyersheim, Alsace, France (class 5 Bortle sky)
This is a face on Spiral Galaxy known as the Fireworks Galaxy and is about 18 million light-years away in the constellations of Cepheus. The Galaxy is partially obscured behind dust within our own Galaxy and appears close an open Star Cluster, which is actually situated within on our Galaxy.
Imaged over 3 nights and is an LRGB image, no Ha.
L = 25x900s
RGB = 6x600s 2xbin per filter
(6x300s L for stars only)
WIlliam Optics GT81
SXVR H694 mono
Astrondon LRGB filters
Ioptron CEM60
Praesepe (Latin for "Manger"), also known as the Beehive Cluster, is an open star cluster in the otherwise unassuming constellation Cancer. It is tucked between the stars Delta and Gamma Cancri, which form the eyes of the crab. With the naked eye it appears as a fuzzy patch in the sky, but binoculars or a telescope reveal numerous stars.
This image is one of the first taken with my new SharpStar 150mm f/2.8 Hyperbolic Newtonian Telescope (HNT) with a 420mm focal length. This is a stack of 11 x 180s exposures with a Canon 6D, processed in PixInsight.
Standing on the Beach of Tréguennec, I'm looking at the close conjunction between Venus and Jupiter. My red flashlight is illuminating the wet sand at low tide. The Pleiades and the V of Taurus are also visible on the upper left.
Great Hercules stars cluster M13 is a globular star cluster that contains half million stars. Its about 150 light years across and mainly composed of red giant stars. The core of this region is believed to be very hot due to thousands of stars compacted in small region. Gear setup: Celestron edge HD 8 @ f/7, iOptron GEM45, ZWO 294C @0, unguided, Optolong L- Pro, Lights 165 x 30 sec, 6 Flats, 60 Darks, 50 Bias. Total exposure 82 minutes. Captured by APT & Processed by PI and PS. For image more details: www.astrobin.com/full/hl9p1w/0/
An unguided picture of the globular star cluster M13 (The Great Cluster) in Hercules taken through a Celestron 130mm f/5 reflecting telescope using a ZWOASI183 MC planetary camera. 30 thirty second images were combined and processed with DeepSkyStacker, Gimp, and Lightroom.
wikipedia:
M13 ou Messier 13, aussi catalogué NGC 6205 et très souvent appelé le Grand Amas d'Hercule, est un amas globulaire situé dans la constellation d'Hercule. Il est parmi les objets les plus imposants du catalogue Messier et il a été découvert par Edmond Halley en 17145. Charles Messier a ajouté cet amas dans son catalogue le 1er juin 17646. Les étoiles individuelles de M13 ont été résolues pour la première fois7 le 22 août 17998 par William Herschel.
Messier 13 or M13, also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of several hundred thousand stars in the constellation of Hercules.
Acquisition:
Rising Cam IMX571 color + Zenithstar73
iOptron CEM26 + iPolar
Filtre Optolong L-Pro
ZWO ASI224MC + WO Uniguide 120mm
NINA & PHD2
Photos prises les 8 et 9 avril 2023
Gain 101 -- Offset 901 -- Cooled -5 celcius
- 120sec (best 40 de 60 img)
- 60sec (best 90 de 129 img)
Traitement/processing :
Siril & Gimp
AstroM1 🌟
(rsi2x.2)
This Hubble image shows the star cluster NGC 1850, located about 160,000 light-years away. For this image, two filters were used with the camera to gather data: one at visible wavelengths, the other at near-infrared wavelengths. Following chromatic order, the shorter wavelength visible light data is blue, while the longer near-infrared data is red.
Image credit: NASA, ESA and P. Goudfrooij (Space Telescope Science Institute); Processing: Gladys Kober (NASA/Catholic University of America)
#NASA #NASAMarshall #NASAGoddard #ESA #HubbleSpaceTelescope #HST #astrophysics #starcluster
Over the past few years of exploring Piney Lake, I came to the conclusion that I really wanted to pursue what I considered a truly engaging capture from the area. In thinking about what this meant, I made the decision to pursue timing with the Aspen Fall Foliage and the light of a Quarter Moon.
So this past fall, I planned a night at Piney Lake under a Quarter Moon setting in the western skies when the Aspen Fall Foliage would hopefully be at it's peak. During the drive up in the dark, I couldn't really see much in the way of Aspen leaves but I had high hopes that they were ready for me. Sure enough, when I got to the scene, I could see plenty of bright yellow aspen leaves. And with clear skies and calm winds, I had the uncontrollable factors "right where I wanted them". :-)
In working with the last of the moonlight for the evening, I found myself drawn to the canoes lined up next to the dock. I had shown a little hesitation in going out onto the dock (considering some of the area on the west side is part of the Piney River Ranch) but with the last of the moonlight, I decided to be quiet and go for it.
There is a lot more to this post... see the rest and get free wallpaper from:
www.coloradocaptures.com/fine-art-photography-gallery/won...
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This is probably my best Milky Way capture I have taken to date. I'm incredibly happy with how this one turned out. The sky was so incredibly clear that night and I got so much detail out of it. This was created using a single RAW frame.
NGC2244 and the Rosette nebula in narrow band
I've done too many different colour schemes and palettes for this data now, so i'm going back to basics for this one - h-alpha=red oiii=blue, and oiii=green. bi-colour with a red-ish tone.
might upload a different one some other time.
Taken using my trusty skywatcher ED80/atik16hr combo.
ED80 - ATIK16HR - EQ6 - Finderguider - astronomik ha clip/2" filter, baader oiii 8.5 ccd. filter.
altair 0.6x reducer, PHD2, Ps. nebulosity. software.
Only about 1.5 hrs in 5 and 10 minute exposures.
The muted red tones of the globular cluster Liller 1 are partially obscured in this image by a dense scattering of piercingly blue stars. In fact, it is thanks to Hubble’s Wide Field Camera 3 (WFC3) that we are able to see Liller 1 so clearly in this image, because the WFC3 is sensitive to wavelengths of light that the human eye can’t detect. Liller 1 is only 30,000 light-years from Earth – relatively neighborly in astronomical terms – but it lies within the Milky Way’s ‘bulge’, the dense and dusty region at our galaxy’s center. Because of that, Liller 1 is heavily obscured from view by interstellar dust, which scatters visible light (particularly blue light) very effectively. Fortunately, some infrared and red visible light can pass through these dusty regions. WFC3 is sensitive to both visible and near-infrared (infrared that is close to the visible) wavelengths, allowing us to see through the obscuring clouds of dust, and providing this spectacular view of Liller 1.
Liller 1 is a particularly interesting globular cluster, because unlike most of its kind, it contains a mix of very young and very old stars. Globular clusters typically house only old stars, some nearly as old as the universe itself. Liller 1 instead contains at least two distinct stellar populations with remarkably different ages: the oldest one is 12 billion years old, and the youngest component is just 1-2 billion years old. This led astronomers to conclude that this stellar system was able to form stars over an extraordinarily long period of time.
Text credit: European Space Agency (ESA)
Image credit: ESA/Hubble & NASA, F. Ferraro
For more information: www.nasa.gov/image-feature/goddard/2022/hubble-gazes-at-a...
The globular cluster Terzan 2 in the constellation Scorpio is featured in this observation from the NASA/ESA Hubble Space Telescope. Globular clusters are stable, tightly gravitationally bound clusters of tens of thousands to millions of stars found in a wide variety of galaxies. The intense gravitational attraction between the closely packed stars gives globular clusters a regular, spherical shape. As this image of Terzan 2 illustrates, the hearts of globular clusters are crowded with a multitude of glittering stars.
Image credit: ESA/Hubble & NASA, R. Cohen
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