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Taken w/ Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D7500.
105 lights x 60 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop
Here is a view of the most distant globular cluster in the Milky Way, NGC 2419, some have postulated that this may be an extra-galactic object. I have seen distances listed as high as 285,000 light-years away from Earth. It appears small and dim, but it is actually very large and very bright (if it was a bit closer to us), there are estimates of 300-400 million solar masses in this cluster. This image combines data collected in 2021 and 2023 for a total of 1 hour 54 minutes of light.
Observation data (J2000 epoch)
Class: VII
Constellation: Lynx
Right ascension: 07h 38m 08.51s
Declination: +38° 52′ 54.9″
Distance: 275 kly
Apparent magnitude (V): +9.06
Apparent dimensions (V): 6′
Tech Specs: Orion 8" f/8 Ritchey-Chretien Astrograph Telescope, Celestron CGEM-DX pier mounted, ZWO ASI290MC and ASI071MC-Pro, ZWO ASIAir Pro, ZWO EAF. 116 x 60 seconds at -10C plus darks and flats. Processed using PixInsight and DSS. Image Date: November 5, 2021 and January 15, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Two videos taken with my iphone during a fairly heavy snowfall of big cluster snowflakes. First is in real time, the second in slow motion. Gotta love what phones can do.
More time spent at home, and more time on my hands. ;p
M36 (right) and M38 (left) are two prominent open clusters located in the constellation Auriga. Open clusters are a group of starts which formed from the same cloud of gas and dust, but are not gravitationally bound - they will eventually wonder apart. Our sun formed in an open cluster; however, over the 4.7 billion since it's formation, our sibling stars have drifted apart . A similar fate awaits the open clusters above... its just a matter of time.
These two open clusters are also know as the Pinwheel (M36) and Starfish (M38) - both are more that 4k light years away. An additional open cluster, NGC 1907, is visible above M38 (@ 1'clock).
These are excellent targets for small telescopes and binoculars.
20171223 - Newtown, PA
Cold and blustery - < 1/2 of the subs were usable - vibrations from gusty winds (20-25mph)... even those kept were not great.
Nikon D5500
Nikon 300mmf/4.5 MF ED, f/5.6, 3200iso
24x30s (Stacked in Regim w/Darks)
iOptron SkyTrackerPro
Regim 1.8Sigma stacked w/darks
Processed in Affinity Photo
cropped to ~ 2.5 x 3.4 degrees (original ~3 x 4.5 d)
RG_M36-M38_Sig18apTifAP_crop50r90q
This is the nebula rich region in the constellation of Monoceros the Unicorn with the dark Cone Nebula (left of centre) and the small V-shaped and bright Hubble’s Variable Nebula at bottom, a reflection nebula that varies in form and brightness. Above the Cone Nebula is the triangular Christmas Tree Cluster, NGC 2264, here upside down as the bright blue star 15 Mon is the base of the tree. The large region of nebulosity is Sharpless 2-273. The V-shaped dark nebula above centre is LDN 1603.
Near 15 Mon is a blue reflection nebula. Another blue reflection nebula IC 2169 and associated star cluster Collinder 95 is at left — I framed the field to contain this nebula. Other bits of reflection nebulosity surround it - clockwise: NGC 2245, NGC 2247 and IC 446 above the main nebula. The rich faint cluster near centre is Trumpler 5.
This is a blend of 8 x 5-minute exposures at ISO 800 unfiltered with 6 x 8-minute exposures at ISO 1600 shot through an Optolong L-Enhance dual-band nebula enhancement filter (it lets through only Oxygen III blue-green and Hydrogen-alpha red to really enhance the nebulosity). All exposures with the Canon EOS Ra mirrorless camera through the SharpStar HNT150 Hyperbolic Newtonian Astrograph at f/2.8, from home on a very clear moonless night January 26, 2020. All stacked, aligned and blended in Photoshop 2020.
Brocchi's Cluster
Credit: Giuseppe Donatiello
The region near Cr399, an asterism known since ancient times, also known as Brocchi's Cluster.
In the field of view (FoV) there are several dense molecular clouds, reflection clouds and some very reddened clusters. There are also intriguing star stream-like structures apparently in the foreground of the opaque clouds.
135mm f/2.8 lens array + EOS 4000D
M9 (NGC 6333) is yet another globular cluster in Ophiuchus. This one is farther south, in the region between Scorpius and Sagittarius.
Shot with LRGB filters from my backyard in Long Beach, CA.
L: 49 30 s exposures
R: 28 60 s exposures
G: 21 60 s exposures
B: 27 60 s exposures
All taken with an Atik 414-EX mono camera on a Celestron Edge HD 925 at a focal length of 1530 mm. LRGB filters are from Optolong.
Pre-processing in Nebulosity; registration, stacking, channel combination, and processing in PixInsight; final touches in Photoshop.
Open clusters of stars can be near or far, young or old, and diffuse or compact. Found near the plane of our Milky Way galaxy, they contain from 100 to 10,000 stars, all of which formed at nearly the same time. Bright blue stars frequently distinguish younger open clusters. M35, (Bottom ) is relatively nearby at 2800 light years distant, relatively young at 150 million years old, and relatively diffuse, with about 2500 stars spread out over a volume 30 light years across. An older and more compact open cluster, NGC 2158 ( Top right ) NGC 2158 is four times more distant than M35, over 10 times older, and much more compact with many more stars in roughly the same volume of space. NGC 2158's bright blue stars have self-destructed, leaving cluster light to be dominated by older and yellower stars. Both clusters are seen toward the constellation of Gemini.
Bougenvillea shot with Canon EF 100mm F/2.8L Macro IS USM connected to Fuji XT5 via Finger EF-FX Pro II
An unguided image of the The Pleiades star cluster and reflection nebula taken over Monticello, NY through a Canon 400mm f/5.6 L lens using a Canon 7D MKII dslr camera on a Celestron AVX mount. Ten 60 second images and four dark frames were stacked using DeepSkyStacker, then enhanced with Adobe Lightroom and Photoshop Elements.
A misty moonlit night was a poor time to try RGB, imaging but without any nebulae in my part of the sky at that time i decided to give it a shot, i chose a star cluster for 2 reasons - bright enough to show up in short exposures, and wouldn't require much stretching during post-processing.
Simple RG and B (no luminance) 2min x 10 subs per filter. with darks.
Hyades cluster + Aldebaran
Credit: Giuseppe Donatiello (Oria Amateur Astrophysical Observatory - OAAO)
The Hyades (also Melotte 25 or Collinder 50) is the nearest open cluster to the Solar System at a distance of ~153 ly (47 pc). The cluster consists of a roughly spherical group of hundreds of stars sharing the same age, place of origin, chemical content, and motion through space.
From the perspective, the Hyades Cluster appears in Taurus, where its brightest stars form a "V" shape along with the still brighter red giant Aldebaran.
However, Aldebaran is unrelated to the Hyades, as it is located much closer to Earth.
Aldebaran in Taurus, with a mag +0.98, it is the 14th brightest star in the sky. It's a K5 III orange giant of 1.1 solar masses in an advanced evolutionary state, outside the main sequence.
Faint cirrus clouds of interstellar dust, part of the larger Taurus molecular cloud, scatter starlight across the field, including that of the orange giant star Aldebaran 66.4 light-years away.
Taken with 110/250mm f/2.2 astrograph + Canon Eos 4000D (mosaic). Data collected between 2023 and 2024.
A new trio of examples of ‘data sonification’ from NASA missions provides a new method to enjoy an arrangement of cosmic objects. Data sonification translates information collected by various NASA missions -- such as the Chandra X-ray Observatory, Hubble Space Telescope, and Spitzer Space Telescope -- into sounds.
This image of the Bullet Cluster (officially known as 1E 0657-56) provided the first direct proof of dark matter, the mysterious unseen substance that makes up the vast majority of matter in the Universe. X-rays from Chandra (pink) show where the hot gas in two merging galaxy clusters has been wrenched away from dark matter, seen through a process known as "gravitational lensing" in data from Hubble Space Telescope (blue) and ground-based telescopes. In converting this into sound, the data pan left to right, and each layer of data was limited to a specific frequency range. Data showing dark matter are represented by the lowest frequencies, while X-rays are assigned to the highest frequencies. The galaxies in the image revealed by Hubble data, many of which are in the cluster, are in mid-range frequencies. Then, within each layer, the pitch is set to increase from the bottom of the image to the top so that objects towards the top produce higher tones.
NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #chandraxrayobservatory #ChandraXRay #cxo #chandra #astronomy #space #astrophysics #nasamarshallspaceflightcenter #solarsystemandbeyond #darkmatter #gravitationallensing #GSFC #GoddardSpaceFlightCenter #goddard #galaxycluster #HubbleSpaceTelescope #HST #Hubble
IC 410, aka "the Tadpole nebula",is located 12,000 lightyears from Earth in the Auriga constellation, and is nicknamed the Tadpole Nebula because of the tadpole-shaped clouds of dark dust that appear to be swimming towards the centre.
The Tadpole Nebula is a region of ionised hydrogen gas spanning over 100 lightyears across that's carved and sculpted by streams of charged particles called stellar winds emanating from open star cluster NGC 1893.
NGC 1893 is about 4 million years old, but in astronomical terms it is still very young, with hot, massive stars.
The 'tadpoles' that give the nebula its nickname are dense streams of dust and gas about 10 lightyears long, are composed of dust and gas leftover from the formation of the star cluster and are very likely to give birth to more stars in the future.
Espigueiros means “spikes,” and these granaries are supported on granite slabs from the Peneda mountains. They were built off the ground to protect food crops from rats and other rodents, and were used by the whole community.
The oldest espigueiros date back to 1782, and the whole cluster was constructed between the 18th and 19th centuries. Of the 24 that remain today in the traditional village of Soajo, some are still used today to store grain, especially corn.
M107 (NGC 6171) is another globular cluster in Ophiuchus, a bit south of the star Saik.
Shot with LRGB filters from my backyard in Long Beach, CA.
L: 20 20 s exposures
R: 15 60 s exposures
G: 15 60 s exposures
B: 17 60 s exposures
All taken with an Atik 414-EX mono camera on a Celestron Edge HD 925 at a focal length of 1530 mm. LRGB filters are from Optolong.
Pre-processing in Nebulosity; registration, stacking, channel combination, and processing in PixInsight; final touches in Photoshop.
Have a shot in mind at this cluster of dead silver birch , cant wait till autumn either , the sun rises to the right so a lot of options if nature is kind to me one day , trouble is nits a huge effort for me to get here and then get home due to chronic pain , but its good to be alive :-). Wonder if local people recognise this location ?
NGC 225 is an open cluster within our own Milky Way galaxy. It is over 2,100 light years from Earth
The cluster was first discovered by Caroline Herschel on September 23, 1783
Acquired the nights of Aug 8 and 15, 2015
from Lake Sonoma, CA
L: 18 x 1200s (acquired on 8/8)
R,G,B: 12 x 600s each (acquired on 8/15)
The night of 8/15 the sky was filled with haze from nearby forest fires, hence the marginal color data (somewhat bloated stars)
Main Camera: QSI 583 WSG
Guide Camera: SXV Lodestar (on OAG)
Mount: Astro-Physics Mach 1
Scope: Stellarvue SV100Q (effective FL: 580mm)
Image Aquisition software MaximDL
Registed, Calibrated and Stacked and Post Processed with PixInsight 1.8