View allAll Photos Tagged m13
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?
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.
Is it really observing if you're using a smart telescope? You're not star-hopping, not focusing manually, not even aligning. Just tapping a screen.
I think the answer depends on what you're doing — and how you're looking.
This image of M13 isn’t spectacular. So hold your fancy invites :) It’s one of my first with the Seestar S50, a 50mm all-in-one scope I’m learning under Norway’s bright summer skies, to be ready for autumn and winters darkness.
I picked M13 because I used to chase it as a kid, peering through a 60mm scope my dad gave me. I still remember the thrill of finding that fuzzy patch among the stars.
And while the Seestar handled the pointing and capturing, something happened that reminded me why this is still observing: While glancing at the iPad during the exposure, I noticed a "star" near the cluster that looked… wrong. Faintly fuzzy. Off.
I paused. Looked again. My instincts — sharpened long ago — kicked in. That’s no star, thats a galaxy! The inner voice was from the kid I was and still is. And of course it had a 'Han Solo voice over' sound to it!
Sure enough, it was NGC 6207, a distant edge-on spiral galaxy just northeast of M13. I never saw it as a kid, but in that moment, something in me recognized it. Not because the scope found it, but because I did. Still observing.
And honestly? I think devices like the Seestar s50 are fantastic. Go sky-shopping. Don’t worry whether it “counts.” If the sky catches you… you will start observing.
The objects of the story I made flickr notes of, just move mouse pointer over the picture.
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.
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.
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
M13, The Great Cluster in Hercules
Pentax ME-Super mounted on a f/10 20cm Celestron Celestar 8 Deluxe in prime focus, exposed for about 3 minutes
Ilford Delta 3200, HC-110B
M13 is one of the most spectacular clusters in the northern hemisphere and also the brightest one.
Exposure times: 27x240 sec.
ISO 400
Mount: Skywatcher AZ EQ6
Scope: APM Apo 107/700mm
Camera: Canon EOS 60Da
You're looking at 300,000 suns!
First test image using the new Celestron StarSense Autoguider with my 8" Schmidt-Cassegrain. Initial set up was easy, and the autoguding was flawless.
This cluster lies just outside of our Milky Way galaxy at a distance of around 25,000 light years away and contains around 300,000 stars!
Image Details:
- Imaging Scope: Celestron C8 SCT
- Imaging Camera: ZWO ASI183MC Color with ZWO IR cut filter
- Guider: Celestron Starsense Autoguider
- Acquisition Software: Sharpcap
- Guiding Software: Celestron
- Capture Software: SharpCap Pro (LiveStack mode with dithering)
- Light Frames: 30*1 min @ 100 Gain, Temp -20C
- Dark Frames: 30*1 mins
- Stacked in Deep Sky Stacker
- Processed in PixInsight, Adobe Lightroom, and Topaz Denoise AI
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!
Single long exposure taken July 22, 2015 with NightCap app through 8" telescope & processed in Camera+
As an experiment I decided to take exposures of different length and combine them using DSS and Entropy Weighted Average to try and keep the core from saturating. It worked very well and I was able to stretch it easily to reveal some of the fainter stars while maintaing the core. While stretching the "propeller" remained and can still be seen in the final stretched photo. No masks or laso was used.
Image Taken: 7 Jun 13
Object: M13 Keystone Cluster in Hercules
Mount: AP Mach 1
Imaging scope: AT8RC with CCDT67 reducer foclal lenght 1200mm
Imaging camera: Hypercam modded Canon T1i
Lights: Total 1 hrs 30 mins
4 x 720 sec, 4 x 320 sec, 4 x 180 sec, 4 x 90 sec
Calibration: Flats, Dark Flats
Guide scope: KWIQ Autoguider
Other details: Captured with Backyard EOS, guided with Metaguide, stacked in DSS processed in Photoshop
The M13 globular cluster in Hercules is a summer favorite. With 300,000 stars some 25,000 light years away, it has an apparent magnitude of 5.8 placing it in a sweet spot for urban backyard astronomers -- we'll never make it out with the naked eye but it shows well in a small telescope, and it makes a beautiful target for beginning and intermediate astrophotographers. In this instance I'm exploring the capabilities of a monochrome CMOS camera and basic RGB filter set; the longest single exposure used to build this image was 2 seconds.
Tech stuff: Questar 3.5" telescope with PG III mount, unguided. QHY163 mono camera at native Questar focal length 1570 mm, binned 2X. L 300 X 0.4 sec; R 300 X 0.4 sec; G 292 X 0.4 sec; B 63 X 2.0 sec; total integration time 8 minutes. Acquired and stacked live with Sharpcap Pro and processed with PixInsight. Imaged from my yard 10 miles north of New York City.
taken with canon eos 60Da with 200 mm lens on ioptron skytracker. Stacked in DSS 38 lights, 17 darks
Happy anniversary Ewa & Ryan!
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