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Image taken with a SkyWatcher 70mm SK707AZ2, using a super 25mm lens.
Also known as a Hercules Cluster
M 13, Great Cluster in Hercules, NGC 6205
William Optics FLT-98 / Heq5Pro (belt mod) / QHY 23 / QHY5-II / Riccardi Reducer 0.75x
The Hercules Globular Cluster has long been one of my favorite objects ever since I viewed it through my 10" Dobsonian. Visually it takes your breath away and it's a rare object that almost looks better "live" in the scope.
Alignment and tracking is improved. Slight issues with focus and the field flattener distance was incorrect. Most of that is cropped out here.
Capture:
* Nikon D5300
* William Optics Z73
* William Optics 50mm UniGuide
* ZWO ASI120MC-S (guiding)
* HEQ5
* KStars
* PHD
* 29 x 120s light frames, 5 darks
Processing:
* Affinity Photo
* Lightroom
Welcome to the most wonderful Northern Hemisphere globular cluster... The Great Hercules Cluster. This cluster is easily seen under a dark sky and with binoculars from the suburbs. Go do down the side of Hercules. Use the bright star Vega to find the "keystone" (Shown in Red) of Hercules.
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Enhance
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD2 Software
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 101) - 24 exposures @ 15 Seconds (6 Minutes)
Calibration: 50 Bias, 30 Darks, 0 Flats
​Processing: Deep Sky Stacker, Adobe Photoshop, Topaz Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS
#m13 #astrophotography #astrobackyard #losmandy #losmandygm8 #zwo #asi533mcpro
M13 & NGC 6207
Camera: Canon 6D
Scope: LZOS MC-MTO-11CA 100/1000 F/10
Mount: Skywatcher Star Adventurer 2i
Guiding: Lacerta MGEN-II és 9x50 keresőtávcső
Exposure: 56x35s +20 dark,darkflat,bias,flat
ISO-6400
20 5min subs ISO 800 stacked in DSS then adjusted in PS CS2 with a slight crop. Canon 400D(modded) with Astronomik LP filter , Orion Atlas mount and the scope is a Celestron 8 SCT with a .63 focal reducer(FL 1280) and a Orion ED80 refractor as a guide scope.
Over 100 globular clusters orbit the center of the Milky Way. This one, found in the constellation Hercules, is the grandest we can see from the northern hemisphere. 25,000 light years away, it comprises several hundred thousand stars which photograph in a pleasing mix of blue and gold.
Tech stuff: Questar 3.5" telescope/ ZWO ASI 533 mono camera/ livestacked 4-second unguided exposures totaling 15 minutes for each of R, G, and B filters, processed with PixInsight. From my yard in Westchester County 10 miles north of New York City.
We had several clear nights on the bounce a week or two back, and I spent the time imaging this thing as Cygnus was still getting up above my house a little late. This is just short of 10 hours, but I put it away because I got the feeling it was out of focus when comparing it with the version I did back in 2011 with the 200p. The stars in the cluster don't look quite as tight as I think they should.
Whaddya reckon? Out of focus?
This was just a test image for a new setup but considering it was taken with no filters, from the madison suburbs, and with near full moon I was happy. You can even see a tiny galaxy in the field if you look upper left..
taken with my super budget setup:
Meade 8" SCT with Meade f/6.3 focal reducer
iOptron iEQ45
400 mm Spiratone f/6.3 camera lens as guide scope (a T-mount lens)
ASI120MM guide camera screwed to T-mount
ADM 75mm mount rings and ADM 8" Mini Dovetail bar for guide scope
Olympus E-M5, ISO 1000, noise reduction on (auto dark frame subtraction)
JY-710 wireless intervalometer
guided with PhD on mac
20x2min exposures
stacked in Nebulosity and processed in PS
M13, commonly called the Great Globular Cluster in Hercules, is arguably the finest example of a globular cluster visible in the northern hemisphere. This cluster is estimated to contain around 300,000 stars and is 145 light years in diameter. Globular clusters orbit the Milky Way galaxy outside the galactic disk tens of thousands of light years away. In contrast, the nearb y Pleiades and Hyades (open star clusters) reside within the galactic disk usually harboring a few hundred to a thousand stars.
Date:March 25, 2014
Telescope:Vixen VC200L
Mount:CGEM-DX
Camera:Atik 460EX
Filters:Astrodon LRGB Gen2 TruBalance
Exposures:LUM: 20 x 180s, RGB: 12 x 180s (per channel) 2x2
Messier 13, Hercules Globular Cluster
Getting used to the equipment - a quick test run.
Setup:
* Shot through the haze of fireworks
* 55 30-second exposures (lights only)
Equipment/Tech:
* Nikon D5300
* William Optics Zenithstar 73
* Skywatcher HEQ5 Mount
* KStars
Processing:
* Stacked and adjusted in Affinity Photo - levels, colors, background removal
Globular Cluster M13:
Messier 13 (M13), also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of about 300,000 stars in the constellation of Hercules. M13 is about 145 light-years in diameter, and it is composed of several hundred thousand stars, the brightest of which is the variable star V11 with an apparent magnitude of 11.95. M13 is 25,100 light-years away from Earth.
Messier 13 or M13 (also designated NGC 6205 and sometimes called theGreat Globular Cluster in Hercules, theHercules Globular Cluster, or the Great Hercules Cluster), is a globular cluster of several hundred thousand stars in the constellation of Hercules.
Taken with a Helios 102mm refractor + Canon 1100D at prime focus.
Single shot, ISO-1600 90 seconds
Processed in Lightroom
I'm out of practice with processing. Will probably redux and replace this one in a few days.
Telescope: PlaneWave CDK12.5
Camera: Apogee U16M
10 x 120s, Gain=100, L filter
Stacked in PixInsight
Levels stretch in Photoshop
ZWO ASI6200MM-Pro
TeleVue NP101is
Losmandy G11
With no more than ten frames and no noise reduction applied, I am surprised at how clean this image is. I plan to collect and add ten frames each in R, G and B.
I can see vignetting in the corners. I do have flat calibration frames to correct it. Vignetting will not be an issue in the cropped final image.
Der Kugelsternhaufen M13 (Messier 13) im Sternbild Herkules.
Aufgenommen mit Teleskop T05 von iTelescope.net in New Mexico, USA.
10 Einzelbilder pro Farbkanal (2x60s, 3x120s, 5x180s), d.h. 23 min Belichtungszeit pro Kanal, 69 Minuten Gesamtbelichtungszeit. Prozessiert mit AstroPixelProcessor und Photoshop.
Great globular cluster M13 in Hercules. Taken with a remote telescope (T05 from iTelescope.net).
10 Frames per colour channel (2x60s, 3x120s, 5x180s), 23 min per channel, 69 minutes total exposure time.
Processed in AstroPixelProcessor and Photoshop.
Processed with Pixinsight - TS 121SDQ + ASI6200MM Pro + ZWO EFW filter wheel. A little too blue, but this is the best I can get from my capture.
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.
Mount: Skywatcher EQ6 Pro
Scope: Meade LX200 EMC 10 inches
Camera: Nikon Z6
Seeing conditions: 70-80%
..single shoot!
M13 (NGC 6205) is a Shapley-Sawyer class V (en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentratio...) globular cluster of around 300,000 stars approximately 22,000 light years away in Hercules.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged from Dardenne Prairie, Missouri (a red zone) on March 27th and 28th, 2015 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
The Great Cluster in Hercule is without doubt one of the most beautiful globular clusters in the northern sky but also one of the oldest objects in our galaxy, estimated to be at least 12 billion years old.
Located at a close distance from the Earth, about 22000 light-years away, it contains more than 500,000 stars in a diameter of barely 150 light-years.
I'm still delighted with the TOA's magical sharpness, which reveals all its potential on this kind of target, with its diameter of just 130mm and yet a nice separation of the stars in the centre of the cluster.
There's no need to introduce the famous Y, which, once your eyes have become accustomed to the glare of the centre, becomes hypnotically obvious and eye-catching :-)
The spiral galaxy NGC6207 (around 64 million light-years away) in the upper left-hand corner of the image gives us lovely details of its bluish arms and HII regions, while the background sky is teeming with a host of other galaxies.
13h30 exposures from 17 a to 31 may 2023 in Amiens (France) with :
TOA 130-fl645 on Eq6-R
ZWO 2600mm & LRVB Antlia
L : 267 x120s
RVB : 45/45/46x120s
1.55