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Found 5 results

  1. kit- super-tak 35/135, 1200d unmodded, Heq5 . taken from my obsyroom open window. seeing was very good uptill 10.30, then thin cloud arrived as soon as Orion cleared the horizon, but most of it staxed out. The Pleiades, 20/45 sec, iso 1600. 21.30pm. NGC1647. lovely open cluster ,often overlooked. 10x40 sec iso1600 . 22.40pm. Orions Belt with a hint of flame. 22x 45 sec and 10x24 sec. iso 1600. 23.20pm. thin cloud. that darn cloud at 23.00, i waited another 30min or so,untill most of the belt and sword had risen above.
  2. Nadine2704

    Orion's Belt

    From the album: Astrophotography

    Taken with my iOptron Skytracker and Canon 70d with 300mm lens. Wish I'd stayed out longer as the Horsehead was just starting to show! 25 x 1 min exposures at ISO 6400.
  3. Quite often I will start an image and not get time to finish it before the telescope being used has to move on. That is the case with this one, which is just 3 test exposures with a small refractor and Atik 11000. Usually the data just sits on my hard drive, going nowhere, but by chance I opened one of the exposures in Pixinsight and hit CTRL+A, and the auto-stretch feature revealed a bit more detail than I expected, so I just stacked the three images with no rejection to see what came out. Originally my intention was to frame a shot of the three main stars in Orion's belt, but the nebulosity and position of the horsehead nebula did not lend itself to a nicely composed picture. I definitely haven't gone for "pretty" here, but rather, with a drastic stretch of the outlying regions around the Horsehead, the image makes clear the density of the Hydrogen clouds in the area. We also get an idea of the amount of stars that get filtered out by comparing local areas within the image. Oddly enough, despite a personal propensity for pareidolia, and having imaged this area extensively for quite a while now, and even having a small contribution to this image https://apod.nasa.gov/apod/ap101005.html , I have never before noticed the looming Giraffe in the background. I shall look out for it in future though Tim
  4. I don't seem to get to do many imaging projects for myself these days. This year in particular seems to have been particularly lacking in clear dark nights, I don't know if you would agree? Complicating matters further in my locale has been a huge and long lasting A45 bypass, three years and still not quite finished. The site has been working 24/7, and they put perimeter lights all around the temporary site office complex. At the same time my kind neighbour (who knows what I do for a hobby and for pocket money) decided to install the brightest floodlight I have ever seen, and leave it on all night every night, shining at 90° over my garden.... At any rate, I found some subs that I captured in March of this year using a Skywatcher Esprit 150ED, and Atik 11000 camera. I don't actually remember capturing the data to be honest, so it was a nice surprise to find it on my HDD. Possibly the most photographed DSO in the sky, the iconic Horsehead nebula is instantly recognisable. For this picture I have combined a little bit of RGB colour data with the bulk of the data gathered with a Hydrogen alpha filter. Recently @ollypenrice posted a lovely picture of the same area, and somebody made a Facebook comment about letting the stars shine out. Which got me to thinking, rather than try an minimise the effects of Alnitak, the huge, hot, blue star on the mid left, I'd just let it do it's thing, dominating the picture, as it dominates in the eyepiece. Although the flame nebula and rear of the Horsehead are the brightest emission nebulae in the vicinity, the whole area is awash with thick clouds of gas and dust. This image represents the way I imagine the area would look if we could get in a bit closer. The image represents around 15 hours of Ha data, and 45 mins or so of Red, Green and Blue. Thirty minute Ha exposures. I've included the Ha image alone, and also a cropped approximation of the actual eyepiece views you may experience in dark skies, with a 16 inch telescope, using a Hydrogen beta filter. I saw this for the first time in the autumn and had of those astro moments that stays with you for a long time. A Hb filter is definitely on my shopping list once I get my dob mirror sorted. Thanks for looking. Tim
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