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Showing results for tags 'galaxy'.
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A very crisp and cold night. I added more luminance data and also collected some RGB for NGC 2841. There is now around 4 hours in L and an hour each in R, G and B. The subs are 114s at a gain of 139. Wikipedia: NGC 2841 is an unbarred spiral galaxy in the northern circumpolar constellation of Ursa Major. A 2001 Hubble Space Telescope survey of the galaxy's Cepheid variables determined its distance to be approximately 14.1 megaparsecs or 46 million light-years. This is the prototype for the flocculent spiral galaxy, a type of spiral galaxy whose arms
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Hi! So Ive found some pictures from an arxiv report in a database which I need for my project and converted them to fits files (The picture on the left). The one that was used in the arxiv report (picture on right) is a zoomed in picture of a galaxy in that picture, where its clearly visible. However when I try zooming in on the exakt coordinates of the galaxy in the fits image, its just plain black. I want the picture "raw", that's why I saved it as fits and not their pdf picture from report. Someone suggested first stretching the image for a more detailed image but some filters had to be use -
Andromeda Galaxy Group Nikon D5100 -- Nikkor 70-300 at 200mm 60x30 sec + DOF Star Adventurer© AstroM1
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Today I finally edited some data I've had for a while. It's a widefield shot (50mm prime lens) that was used on a modified Canon 600D. The end result is about 50 x 3 minute exposures, ISO 800 f/3.5. It was also shot with an IDAS D2 light pollution suppression filter riding atop an iOptron SkyGuider Pro. The Eastern skies when I shot this are full of street lights so there were some nasty gradients. I also realised that the camera lens pulls itself in when the camera is switched off, which meant that even though I'd taped the focus ring down, my focus had changed and I couldn't use flat fr
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ngc 253 John Herschel in South Africa ( NGC 253, Sculptor Galaxy )
MikeODay posted a blog entry in The Sculptor Galaxy - NGC 253
Sir John Herschel at the Cape of Good Hope Having spent the years 1825 to 1833 cataloguing the double stars, nebulae and clusters of stars visible from Slough, in the south of England, John Herschel, together with his family and telescopes, set sail from Portsmouth on the 13th of November 1833 bound for Cape Town. As detailed below, in an extract from his book, the family enjoyed a pleasant and uneventful voyage and arrived some 5 months later at Table Bay with all family and instruments in good condition. Reading on however, one might very well think that it might not have ended so -
Observations of the Sculptor Galaxy ( NGC 253 ) by William and John Herschel ......... Part 2. Observations of "Caroline's Galaxy" by Sir John Herschel, 1830's Sir John Herschel, the only child of Mary Baldwin and Sir William Herschel, was born in 1792 when his father was in middle age and already famous as one of world's leading astronomers. Having excelled in school, and no doubt inspired by his famous elders, John Herschel decided upon a career as a 'man of science' and set out to pursue a wide range of interests; with one particular focus being a continuation of the
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Observations of the Sculptor Galaxy ( NGC 253 ) by William and John Herschel The very large and bright 'nebula' discovered by Caroline Herschel in 1783, that we now know as the Sculptor Galaxy, was observed a number of times by her 'dear brother' Sir William Herschel and by her 'beloved nephew' Sir John Herschel, Baronet. Some of these observations were recorded and published in the Philosophical Transactions of the Royal Society and, with respect to those by Sir John in South Africa, in the book of Astronomical Observations at the Cape of Good Hope. ......... Part 1. Observat
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The Discovery of the Sculptor Galaxy by Miss Caroline Herschel in 1783 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, Miss Herschel saw and noted down a very bright and large nebula where one had never before been recorded and that was later recognised by her brother, Sir Willi
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From the album: Deep Sky Objects
M31 Andromeda Galaxy, taken using LRGB filters. No Moon, but heavy light pollution and a battle with dew. Plenty of tracking problems, the LX90 mount is showing the effort of tracking is this much equipment with a lot of errors. But I'm relatively pleased with the result. I have fine tuned the Orion ST80 and the end results seem very much improved over previous efforts so it looks like the hard work has paid off. The astrobin link if you want more information is: http://www.astrobin.com/238758/ Let me know what you think. -
From the album: Deep Sky Objects
M31 Andromeda Galaxy (Our next door neighbour). Strange to think that at some point it will collide with the Miilky Way. Taken with a full moon and low in the sky with loads of light pollution hence the bright bottom right had corner. There are also another galaxies M110 (top right) and M32(bottom middle). I only took it in monochrome as time did not permit for full colour. I need to collect a lot more data to get a better image. Hopefully higher in the sky. The astrobin link for this is: http://www.astrobin.com/237037/ -
From the album: Deep Sky Imaging
This is a 7 hour exposure of the M74 galaxy using a astro full specturm modded Canon 40D DSLR through a IR Cut filter. The image is taken with a Celestron 8" SCT at F6.3 through a focal reducer(1280mm focal length). The image consists of mostly 450s subs and approximately 1 hours of 120s subs, all at ISO 800. This galaxy is located at about 30 Million Light years distance from us, at for a magnitude 10 object it did seem like quite a faint object to image, this could be due to the it's low altitude throughout the whole exposure and a little bit of city light pollution in that part of -
From the album: Deep Sky Imaging
This is a 10 hour exposure of the NGC1055 galaxy using a standard Canon DSLR. The image is taken with a Celestron 8" SCT at F10 (2032mm focal length). The image consists of mostly 600s subs and approximately 2 hours of 90-150s subs, all at ISO 800. This galaxy is located at about 60 Million Light years distance from us, and at a magnitude of 12.5 is quite a faint object to image, especially when there is a little bit of light pollution with in the par of the sky it is imaged at... Looking at the result, I probably should have used the f6.3 FR to have less over sampling and most likel -
From the album: Astrophotography
Taken with my iOptron Skytracker and Canon 70d with 300mm lens. -
From the album: Wornish Deep Sky
Esprit 100 scope , with my Olympus EM5mk2 16 - x 1 min lights, 3 x 1 min darks, 30 bias and 22 flats. Processed in Pixinsight -
From the album: Wornish Deep Sky
Unguided, approx 30minutes of DSS stacked shots. Taken with my EM5 mk2 and Nikon 80-200mm zoom, processed in pixinsight -
From the album: Wornish Deep Sky
Finally got guiding to work. Total of 50 mins exposures stacked in DSS and processed in Pixinsight -
From the album: Deep Sky Objects
Messier 101 - Pinwheel Galaxy Taken with reasonable seeing and the best guiding I have managed to date. I still need to get the guiding better but we are getting there. This is in monochrome only as I used a Skywatcher Clear Sky filter to deal with the light pollution. I'm very pleased with the end result all things considered. If you wnat more detail, the astrobin link is: http:// http://www.astrobin.com/247272/-
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From the album: Deep Sky Objects
NGC2403 - Taken over a couple of nights,both affected by cloud and my tracking was not as good as it should be, so the final result is not as sharp as I had hoped. -
From the album: Deep Sky Objects
Messier 106 A spiral galaxy in the constellation Canes Venatici. It about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy. Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a super-massive black hole in the centre. For more information the AstroBin link is: http://www.astrobin.com/243401/- 3 comments
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From the album: DSOs
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From the album: Deep Sky Objects
Messier 100 - First run with the Skywatcher AZ-EQ6 GT. Great tracking, the image was just spoilt by light pollution. I need to find a better approach to dealing with it. I did have this in LRGB and the image would be great if it was not for the yellow cast. Time to turn to the internet for further advice. For more details the Astrobin link is: http://www.astrobin.com/241961/ -
2014-09-24 -- Andromeda re-processed with ProDigial Software's Astronomy Tools V1.6
Stargazer33 posted a gallery image in Member's Album
From the album: Stargazer33's Album
© Bryan Harrison 2012-2017
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From the album: Slynxx Learning Curve
45 x 180sec Light Frames (2hrs + total exposure)10 x 180sec Dark Frames (Lazy me) ISO 1600 75-300mm Canon EF Telephoto Lens. Deep Sky Stacker Photoshop -
From the album: Slynxx Learning Curve
First proper try at capturing M31 30 x 75 sec Light Frames 10 x Dark Frames Canon 700D (Un-modded) Canon EF 75-300 ISO 1600 Stacked using Photoshop & the Median stacking process.-
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