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Found 3 results

  1. Hello, Since a couple of months I'm a EQ6-R Pro user. So far I've been using the synscan handcontroller to do the star alignment. I would like the use software like stellarium, kstars or cartes du ciel thru the direct connection with mount, so no longer using the synscan handcontroller. I've tried but when I search an object and make the software slew to it, it's way off. I'm quite confident with my polar alignment as I'm using the QHYCCD PolarScope (and furthermore I've read on this forum that polar alignment and star alignment are not the same). Can somebody please explain how to do star alignment with software like stellarium, kstars or cartes du ciel - I suppose there's is some general procedure that applies to software like the three I mention? Many thanks, AstroRookie
  2. Greetings everyone. I recently scored a great deal on facebook marketplace and bought Skywatcher Skymax 180 mm Maksutov-Cassegrain Telescope (f/15) with EQ6R-pro mount. I understand that long focal length telescopes are more suitable for planetary imaging. However, as I am tight on budget, I would like to use the same scope for deep-sky astrophotography. I have Canon Rebel T5 DSLR camera that I am using for taking images. Without autoguiding and a decent polar alignment, I can get ~30 seconds long shots without any star trailing, but that's not sufficient for imaging objects like M51. I would like to be able to integrate longer, say few minutes, thus would like to purchase an autoguider. Here are some specific questions I have. 1). The telescope comes with an 8 x 50 straight-through finder. If I were to use it as a guidescope, what type of image integration time can I expect? Has anyone done autoguiding for f/15 scope with an 8x50 or other finderscopes? 2). If the integration time will be an issue with the 8x50 finder scope, I am open to purchasing an off-axis-guider. However, considering the narrow field-of-view of Mak-180 telescope, I am concerned about not having enough photons from guidestar for autoguiding. For instance, with my DSLR camera, I need to integrate 20-30 seconds to see the nearby stars in M51. What type of OAG and camera would I need to autoguide with my scope? Are there affordable cameras (~$200) that would do the job for me? Would ASI120MM Mini Monochrome (~$150) do the job? What about OAG? I plan to use phd2 software for autoguiding rather than relying on the build-in guide port on the mount. Instead of integrating for hours, I am planning to do DSS stacking of few mintues long multiple shots, hopefully this will put less strict requirements on the autoguider. In case this information is relevant: with my current setup, I have no issue pointing my scope to a desired deep-sky object, track the object within the field-of-view of my DSLR camera for hours using the mechnical tracking of the EQ6 mount. For instance following is a single raw image of Ring nebula taken with 30 seconds shot. But it is not enough for generating high-quality images. Thank you in advance for your help. Regards, Jay
  3. I'm considering a second mount; not sure if I'll keep the AVX or sell it later, but looking at something a bit heavier, so I can mount two scopes. Budget is a serious consideration, and the two I've narrowed down to that I can reasonably afford are the Celestron CGEM II, and the Skywatcher EQ6R-Pro. Same money, very similar features. What's the consensus on which one is better, and why? Please don't bring other dogs to the fight, it's just between these two. Right now, the SW has a slight edge; 4 more lb. of capacity (but the CGEM has as much as I need). SW is belt drive, couldn't readily find what the CGEM uses (stepper motors??) SW is a couple of pounds lighter for the mount and the tripod, which makes moving it a tiny bit easier. Both can handle Vixen or Losmandy dovetails, both have illuminated polar scopes, both can use SkySync and StarSense. I like black better than white for color, but it certainly wouldn't be very high on the decision tree..
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