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MarsG76

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Everything posted by MarsG76

  1. From the album: Deep Sky Imaging

    Centaurus A (NGC 5128) is a galaxy in the constellation of Centaurus. It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, in New South Wales, Australia. At 13 million LY, NGC 5128 is one of the closest radio galaxies to Earth and is also the fifth-brightest in the sky, making it an ideal amateur astronomy target. The galaxy is only visible from below very low northern latitudes but is best seen or imaged from the southern hemisphere. This image was taken with a NexStar 8SE 8" SCT at 2032mm focal length, PHD2 autoguided CGEM using a astronomy modded Canon 40D DSLR controlled by APT. It consists of 40 x 300 sec, 30 x 600 sec and 20 x 900 sec ISO800 subs.

    © Mariusz Goralski

  2. From the album: Deep Sky Imaging

    A photo of Eta Carina and surrounding nebulosity close up in classic Hubble Palette style color. The Carina Nebula (NGC 3372) also known as the Grand Nebula, Great Nebula in Carina, or Eta Carinae Nebula, is a large complex area of bright and dark nebulosity in the constellation Carina. The nebula lies at an estimated distance between 6,500 and 10,000 light-years from Earth. This image was taken across 7 nights in March 2018 through 8nm bandwidth Sulfur II (SII), Hydrogen Alpha (HII) and Oxygen III (OIII) filters and combined where SII is used as the red channel, HII is as the green and OIII is as the blue channel. Taken using a 8" SCT at F10 with a self modded full spectrum Canon 40D DSLR. This image exposure time was a total of 30 hours , 24 x 900s and 16 x 1800s SII, 24 x 600s and 24 x 900s HII and 36 x 600s OIII ISO800 subs.
  3. From the album: Deep Sky Imaging

    A photo of Eta Carina and surrounding nebulosity close up in natural color. The Carina Nebula (NGC 3372) also known as the Grand Nebula, Great Nebula in Carina, or Eta Carinae Nebula, is a large complex area of bright and dark nebulosity in the constellation Carina. The nebula lies at an estimated distance between 6,500 and 10,000 light-years from Earth. Taken using a 8" SCT at F10 with a self modded full spectrum Canon 40D DSLR. This image was exposed for a total of 180 minutes, 12 x 600s and 12 x 300s ISO800 subs on 12th March 2018.
  4. I found it... attached is my video, timelapse of a Lunar sunrise shadow creep.... Moon_Timelapse_8Jun2015_4x.mp4
  5. Same here... back before I did my time lapse of a lunar sunrise, I googled and searched various Astro forums to see if anyone done something like this... I found nothing... I dare say we might be the first two who done something like this.... namely a shadow creep lunar timelapse.
  6. Awesome... reminds me of when I did this kind of moon time lapse back in June 2015.
  7. I agree.. the baader glass is not needed... When I modded my 40D, i removed both of teh pieces of glass at the from, one, the thicker one, looks blue, so it was removed but I replaced the other piece of glass.. it looks clear and protects the sensor.. My Halpha and SII sensitivity is pretty good for a DSLR.
  8. It should be ok... I use a DSLR with a filter wheel on a SCT and its fine... the DSLR sensor is further back in the body comparing to the ASI1600, so I'm sure it'll be fine. Probably comparable back focal length to a DSLR without a filter wheel and others have achieved focus with a DSLR on a 130SLT.
  9. From the album: Deep Sky Imaging

    This is NGC 1097 which is a barred spiral galaxy about 45 million light years away in the constellation Fornax. This Galaxy is a interacting galaxy with obvious tidal debris and distortions caused by interaction with the companion galaxy NGC 1097A. This image was taken with a Canon 40D DSLR, using a 8" SCT telescope at 2032mm focal length on a CGEM mount. I imaged this across four nights, but unfortunately the last 3 imaging nights we had a bush fire about 50km away and the sky was a little smokey so the end results could be (and most likely was) effected by the smoke. There is no hint of any jets, and I was stretching the stacked data specifically looking for it, but nothing... it might have been blocked by the smoke or my 40D is simply not sensitive enough to pick it up, or both.
  10. From the album: Deep Sky Imaging

    This is another image This is the Jewel Box cluster which is located in the constellation CRUX. It is about 6400 light years away and also known as Kappa Crucis. The designation Kappa Crucis has been assigned to one of the stars in the base of the A-shaped asterism of the cluster. This image was taken with a stock Canon 40D DSLR through a 8" Schmidt Cassegrain telescope at 2032mm focal length. It consists of around 120 minutes of 60, 120 and 180 second subs at ISO400.
  11. From the album: Deep Sky Imaging

    This is my next installment to continue with my goal to image southern objects. NGC 4833 is a globular cluster situated in the very southerly constellation "Musca" the fly and lies at a distance of 21,200 light years from Earth. It is partially obscured by a dusty region of the galactic plane which gave it a yellow/orange hue before color correction. After color correcting the reddening caused by the dust, the other star colors became a bit more obvious. This image was taken with a stock Canon 40D DSLR through a 8" Schmidt Cassegrain telescope at 2032mm focal length. It consists of around 120 minutes of 60, 120 and 180 second subs at ISO400.
  12. Awesome post... a mag 6 sky, now that something to behold... maybe one day.
  13. Awesome HII solar piccies, you guys are Solar masters.
  14. Fantastic images.... I don't know what more impressive.. those images or the fact that you had 222 imaging day in the year... that is an astounding statistic. well done.
  15. Similar consumer laws in Australia...
  16. In that case that's worse than I thought... definitely get the £65 upgrade if that fixes the problem and comes with a tougher ALT bolt... I'd be [removed word] too... SKYWATCHER... how disappointing!!
  17. Would putting something like teflon tape between the mount and the head stop your bolts from bending. The removed friction would allow your mount to glide easier over the tripod, take the force off the bolts and perhaps stop the bending of the bolts. I added some and in my case, it allows me to precisely fine PA adjust my mount in azimuth.
  18. As you should get what you paid for... I'm sure you're protected by consumer law... obviously the bolts are not functioning as intended.
  19. I'm curious whether they respond... What are those bolts made of? Plastic?
  20. That's rubbish..... what happened to attention to detail and high quality products.... this is why I hold on to older equipment until it literally dies... seems like it was built better back then, built to last and now the quality level dropped to rock bottom.. sounds like the manufacturer is saying "as long as it last the warranty period, and not much longer, it's all good, come get another one" ... repeat business keep you in business. Return it, demand the postage to be covered and send a message I say... THE STUFF AIN'T CHEAP!!!!!!!!!! Exactly
  21. From the album: Deep Sky Imaging

    About a month ago I started to image the Dragon Face nebula region, in accordance with my plan to image more southern sky objects which are rarely imaged by amateurs. This area is just north of the Tarantula nebula on the edge of the Large Magellanic Cloud, within a star dense area of the sky. The density of stars can be seen as this was imaged at 2032mm and still the stars are dense like noise where stars are more spaced apart in my images taken at this focal length. In the FOV there are a number of nebulae within this frame, namely NGC2032, NGC2035 and NGC2040 which make up the Dragons Face. There are also NGC2020 which is he blue swirl top left and NGC2014 is the red veil directly under it. There is also NGC2021 that is bottom center of the frame and a faintly visible NGC2053 which is bottom right frame under and to the back of the "dragon face". This was imaged over multiple nights in RGB and through HAlpha, Sulfur II and Oxygen III filters using a full spectrum modded uncooled Canon 40D DSLR. Honestly the amount of time spent on SII and OIII was not necessary and it was wasted imaging time, the strongest data was RGB and HAlpha, adding SII and OIII made almost no difference to the look of the image after stacking and processing...
  22. I found that using different time exposures is necessary to get more depth in your final stack. I use Nebulosity 3.3 to stack my captures and regularly capture ISO 400, 800 and 1600 for the same image, and when stacking it has absolutely no visible detrimental effects, so I don't think it matters if your setting are different, including gain, and/or it might also depend on the program used for stacking.
  23. On regular SCTs the back end is held in place with screws, you'd simply remove those screws and remove the whole back end allowing access to the mirror... mind you tho it might be different with muskatov designs.
  24. I see that the question and solution have been delivered, but how is the primary mirror after the ring hit it?
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