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Found 191 results

  1. Hi, I have a Motor drive for the 130EQ and when I attach and switch it on it drives the RA axis. But once its attached its very difficult to move the OTA in the RA axis manually. Am I missing something? Is there a way to easily couple & decouple the motor so the OTA can be moved manually? Is there someone who uses one of these motors who can help me pls.
  2. Hello all! A question for all you Starsense users out there ... When I do an auto align with Starsense, it duly goes through it's routine of moving the scope to different star targets and resolves each one fine (5 targets I believe). Then it displays on the handset "StarSense Ready". At this point the telescope tube is always pointing in some random direction - is this how yours behaves after it finishes alignment ? Just pointing at the last star it used as a target reference ? At this point I usually set my scope to go to it's "HOME" position, but whenever I "GOTO" a target it is never in the scopes eyepiece and I have to manually hunt around for it. (Using a wide angled eyepiece). Should I just "GOTO" a target without going to "HOME" position first, or should it not matter ? NB - All this after precise Polar Alignment using Polemaster. Grateful for your input Many thanks Kind Regards V.
  3. Hi I’m attempting to get back into astronomy, previously owned a 150pl reflector but parted company with it several years ago, I like the idea of a Cassegrain style as one of the big factors Of letting the 150pl go. was storage and transportation of It! I am interested in mostly visual observations but would look to take a few pictures here and there OF planets and easy nebula/DSO., I feel that a Schmidt-Cassegrain would be the best suited, my main stumbling point is should I get the 5 or 6 version. Is the 6 under mounted? And is it worth the extra cash, obviously there’s a higher light gathering power on the 6 but would it be much better than the 5, I see that the % of lens obstruction on the seems high! As the secondary mirror looks to be the same size on both 40% vs 14%! Obstruction by area. Any guidance would be very appreciated. I’m not against the idea of upgrading the mount in the future to a eq5 maybe? But want in usable to start with.
  4. Hi - I'm a relative newcomer to telescopes with goto - still trying to figure them out. I have a problem with Goto on the 8SE. Alignment usually works (Not always, but usually) I believe my set up is correct - time and date, DST and UTC (It's currently BST in the UK) I usually use 2-star alignment (Currently, most convenient for me are Sirius and Procyon) Alignment usually succeeds, but goto just doesn't. The scope slews away, sometimes even to a completely different part of the sky from the selected object (I'm familiar enough with the sky to be able to identify several bright stars without assistance) Bizarrely, this happens even if the goto object is one of the alignment stars - how could it possibly not be able to find a star when you've explicitly told it where it is? I've read that goto sometimes doesn't work well on battery power, so I've aquired a mains adapter. No change. I haven't yet updated the handset firmware (I'm waiting for a serial-usb adapter.) Any help would be appreciated. Thanks
  5. Hi all, looking for some help please! I have a wedge for my 8SE and when using EQ North to align it, it says it is slewing to Vega but ends up all the way over at Polaris!? Any ideas? Thanks in advance! I have updated the firmware, Mount is pointing at north, have inputted my latitude and longitude, I have tried picking the nearest city too and nothing seems to work!
  6. Hello There, I was wondering if you could help me. I am currently making a setup but I would like to add a good finderscope onto my Celestron Starbright XLT scope. Any ideas would be appreciated. Kind Regards Welsh Dave
  7. Hi all, I'm new to this forum but not particularly new to astronomy. Anyway, I have an issue and I'm hoping that there is someone here who can help or at least point me in the right direction. I have a celestron advanced VX which I have now owned for probably 5 years or so, I lost a bit of interest in astronomy so all of my equipment went away and I have just recently started it all up again. Iwas powering the mount using an RAC heavy duty jump starter, which, admittedly, I haven't been keeping on charge! So there is a fair chance it is dead/on it's way out. So I purchased a talentcell 8300 from Amazon, it arrived today (12th) and I plugged in straight in to the mains to charge up, as soon as it was fully charged I plugged it in to my mount and nothing, literally nothing at all, no lights, no reponse, it's as if I had not plugged it in. So I plugged one of my RAC units in, one of them, when fully charged, will power the mount but not fully, the power LED comes on but the backlight on the HC does not and all I can see on the display is "boot start". I then tried to power the mount via the same 12v cable as I was using from the RAC units but with the power pack plugged in a charging too, this all worked exactly as expected, everything turned on, I can input into the HC and the motors all respond to input. I have noticed that the power LED on the 12v cigarette connector does dim dramatically as soon as I turn the avx on (when plugged in to the RAC pack). I purchased the talentcell unit as I had noticed on other forums that people were using it for the same mount, it is rated as 12v and 6A output so all should be ok. I have not had a chance to check anything with my multimeter, and, honestly, I'm not that handy with one! Any help would be greatly appreciated Many thanks
  8. Having forgotten to regularly charge my powertank it now only lasts around the 3 hour mark and I am only using it to power my Celestron 8SE. I tried searching on the forum for suitable replacement batteries or measurements as I just wanted to replace the battery. I couldn't find this info anywhere so I took the side off (8 screws on the 7ah version—see image—the only hidden screw was in the accessory tray under the lid—although you do need a long-bladed (?) Philips to reach some of the screws). Once off I measured the battery and it is Length 150mm, Height 100mm, Width 65mm. I thought at first that I would be able to fit a larger capacity battery but soon realised that you can't unless you started modifying the case. The largest capacity battery I could find with the right measurements was a Yuasa Yucel Y9-12 which is a 9ah model priced at £15.99 from Hardwareexpress. I hope this will help others with the 7ah powertank who want to change the battery and who can use a screwdriver.
  9. Because of the current situation, I have, as many of you guys probably have too, spend a lot more time under the stars when possible. It has literally been over a year since last I was out doing some astrophotography because of work. So here is my second take after the long break, NGC 3344 (The Sliced Onion Galaxy). Initially I thought it would be a lot fainter than it was, so it was basically a shot in the dark, of just trying to get back at doing this. But the final image actually showed a lot more detail than I would've hoped for! Spring lent a lot of clear night, but those seems to be gone already. I would've hoped for a few more hours to add some more luminance data to it, as I did have to push it quite a bit. I am not too happy with the shape of the stars either. Guiding was not very stable through the night, even though balance and polar alignment seemed to be good. Might need to update my Celestron PEC data? Any advice or feedback is very welcome! NGC 3344 (Sliced Onion Galaxy) _______________________ Image: Luminance - 13x16 min RGB - 2x16 min each Flat and Dark calibrated Gain 111 Offset 40 Total Integration - 5 Hours 4 minutes (LRGB) _____________________ Gear Used: Skywatcher 150PDS Celestron AVX Mount ZWO ASI 183MM-Pro Baader 2'' Neodymium Filter Baader 1,25'' RGB Filters ZWO Mini EFWExplore Scientific Coma CorrectorToupTek Camera G-1200-KMB Mono GuiderOrion Mini 50mm Guidescope ______________________ Software:SharpcapPHD 2Photoshop CS2Deep Sky StackerStellarium/Stellarium ScopeAstrotortilla
  10. Hi. Just starting to use autofocus with the Celestron motor focus and SGP. Can anyone give me some starting points for step size, backlash etc. I’m getting there but wasting a lot of imaging time just trying to get this to work accurately. I’m currently trying a step size of 75 and a backlash of 50. Any tips most appreciated.
  11. I'm having a bit of a clearout to make way for a new project. For sale here are a couple of items that have seen very litle use: 1) Celestron Omni CG-4 GEM Mount + Tripod - £125 *** SOLD *** This is in generally very good condition. There are a few marks, and scuffs consistent with normal use. There are also a couple of minor (small) patches of surface rust on a few of the bolts and steel legs. It has seen very litle use, and has been in storage for the past few years so it is time to find it a good home. The small rubber tips that go on the very end of the feet have perished, so these won't be included. It includes tubular steel tripod, 2 counterweights, built in polar scope, built in bubble level and slow motion controls. Due to size and weight, collection would be preferred from the RG27 area. If you are reasonably local, I would also consider delivering. Price: £125, but I am open to offers. Payment can be made via Bank Transfer (preferred), Paypal or cash on collection 2) ***SOLD*** Celestron Omni XLT 127mm Telescope ***SOLD *** Again this is in very good condition, and has been in storage for the past few years and has had very little overall use. A few marks on the dovetail as is to be expected. It includes a small finderscope, diagonal and a 25mm eyepiece Can be collected from the RG27 area, I could deliver if you are reasonably local, or can be posted for an additional £8. Price: £110, but am open to offers. Payment can be made via Bank Transfer (preferred), Paypal or cash on collection *** NOW SOLD *** Any questions please do let me know.
  12. Hi SGL I popped this topic on CN too but noone seems to know anything. I came by an old Celestron Ultima 8 pre-PEC. I really like the scope and the mount it may be that I have read too much of Uncle Rod's and other's praise that I feel this scope has some intangible personality and charm. Anyway... Circuitry in the base seems to work fine even though the batteries don't hold charge but drive the Ra axis . I have 2 replacement on its way to me. Now my issue: It didn't come with a hand controller. I know it is not needed for tracking, and I don't have a Dec motor but I find it would be useful for centering in RA and D.A.R.V. method drift alignment. I was on the verge of making a crude controller out of veroboard and 4 momentary switches that I thought to be correct from the info on various sites, but then I came across an Ultima 8 project that clearly showed the hand controller for my scope. The pic attached is the one. I am looking for help on how the dial and buttons are wired in and/or photos of the innards of the hand controller or if anyone knows what else is inside the handbox. The sources I was going on so far is a combination of the following 3 links: https://www.cloudyni...ding/?p=8015749 https://onstep.group...in/message/6300 https://github.com/garlick/ultima8/blob/master/base/README.md These of course don't include drive rate rotary switch in the middle and if I could I would really like to to restore the full ability of this mount without spending too much on electronics. Plus I don't want to spend time and effort on wiring something that doesn't work. Oh and lastly I have no background or experience in electronics just own a soldering station and a whole lot of determination. Thanks in advance Greg
  13. From the album: Astronomical Equipment

    I had just acquired my new 8 SE and realized very quickly that I needed an observing chair. So I built one. I'll show you the important modifications I made in subsequent images
  14. I just made an account on here so I could ask this! I have been trying to install the camera driver for a NexImage camera (for a NexStar 6SE telescope) on my Windows 10 computer, but since I bought this telescope in 2004, everything is out of date. The problem is when I plug the camera into the computer at the same time as having the NexImage downloads disk. The instructions say that when this happens, a "Found New Hardware" wizard should appear, and I just follow the prompts to download it. However, this is not coming up. My computer recognises the camera is plugged in, but for some reason it only recognises it as an audio device. I have tried downloading a driver from the Celestron website, but none of them seem to recognise the camera is plugged in. The model no. is #93712, if anyone knows how to fix this problem. Thanks, Flo
  15. Heyyy its me again! Today me and my friend went out to observe! We spotted the moon and focused on it,took some okay pictures with my phone without an adapter( that means having to hold up my phone over the eyepiece 's tiny hole). Then we tried moving towards mars, relatively close to the moon. It wanst a dot but like a small circle with some colour, afterwards we moved towards stars,but instead of seeing these circles with the secondary s reflection in the middle, we saw small circles (like mars but smaller) they were green blue and red coloured i didn't think much of it but then i checked the mirror. And i saw some dust.... Pics bellow.Is it the mirror or is this normal? Also if its the mirror, how do i clean it without removing it, i have a celestron firstscope btw. Thanks.
  16. Hi all, Although I've owned a pair of Celestron Skymaster 20x80s for over six years now, but because they went badly out of collimation, I haven't used them for ages. I sent them back to Celestron, but, apparently, they couldn't be repaired. Amazingly, though, they gave me a brand new pair (!), and these arrived yesterday. Once mounted on the tripod I took a look at the 69% waxing Moon. Absolutely incredible view! Sharp, bright, big, three-dimensional, and only the very slightest hint of chromatic aberration. Kept coming back to this over the course of the evening. Next up M31 and M33. Although quite washed out by the moonlight (as was everything I looked at), I was amazed at the brightness, the size, and the hint of detail in M31. Again, the three-dimensionality was obvious. M33 was only just visible. Open clusters: Double cluster, Owl cluster, Coathanger – all were fantastic, with a variety of star colours obvious, and only a hint of distortion around the edge of the fov (really had to drag my eyes away from the objects in the middle of the fov to experience it). The Coathanger pretty much filled the fov, and was pin sharp and bright. Double stars: Epsilon Lyrae, a very easy split, as was Albireo (again, the different colours were obvious). Mesarthim was just too tight to split. In passing, one of the things that amazed me the most last night was star colour. Mirach, Algol, Vega and many others were all pin sharp, bright, and their colours were very obvious. Globulars: M15 and 92 were small and dense fuzzy balls, M13 bigger, brighter, and with just a hint of granulation to it (like the Moon, I kept coming back to M13). Ring nebula: The ring shape was obvious, even at x20, though small. Being a work night, I was back indoors by about 10, but although just a brief session, it was hugely enjoyable, and a real buzz to be using 20x80 bins again. Cheers, Kev.
  17. I am associated with a college who had purchased a Celestron EDGE HD14 two years ago. Due to the high humidity of the place, there has been quite a bit of fungus which has grown on both the front corretor plate and the rear coma corrector lens which is inbuilt into the central hole. If anyone would know how to disassemble the EDGE HD 14 from the front and rear end it would be very beneficial. TIA
  18. Is it possible to get an extension lead for the handset of the Celestron Advanced GT mount? Thanks James
  19. Looking for a Celestron (made by Vixen) circle V 32mm ERFLE eye piece or a Vixen own branded one. The Celestron was silver with orange lettering. 1.25 inch 31.7mm fit. Vixen own could be 31.7mm or 36.4mm screw fit (which I would prefer). Cash or swap for another ep perhaps.
  20. Hi, I recently bought Celestron Astromaster 130 EQ and I am new to astrophotography. I have Nikon D3100 and I got a T-ring and a T-adapter to get started with it but my dslr doesn't focus at all! It is really heartbreaking Can anyone please help me out with this problem? Maira
  21. I'm happy owner of 25×100 CELESTRON binos, i want to know : a) is really an improvement to use grey filter for lunar observation ? b)is it possible to screw filter on these oculars ? Thanks for your help.
  22. Ok this might be a stupid question but I own the Nexstar Evo 9.25' and as much as I love the scope I'm getting more ambitious with my astrophotography. My big problem is my FOV. Even with a focal reducer it's a struggle to fit the larger targets into the shot. My question is whether I could get a smaller OTA without needing a different mount. Would I be limited to SCTs or would I be able to get a refractor on there? Thanks
  23. Found an old (apparently USA model) celestron C8 SCT a while back, its a bit hit n miss with collimation and the optics - (some very strange star test shapes :P) but when it works it works well Here is a couple images from a couple months back. Thanks for looking. This particular night seeing was reasonably good, and collimation wasn't too bad either. Celestron C8 / ASI120MC / 2X barlow - captured in sharpcap2, stacked in autostakkert!2, wavelets in registax6
  24. Iphone 5/5s phone adapter that attaches your iphone to Celestron X-Cel LX eyepieces (may work with other eyepieces and phones). This adapter is hard to get hold of now and believe it or not cost me £50!! I've included a couple of photos taken using this adapter to show how good it is. £25 posted (fees paid via Paypal).
  25. Iphone 5/5s phone adapter that attaches your iphone to Celestron X-Cel LX eyepieces (may work with other eyepieces and phones). This adapter is hard to get hold of now and believe it or not cost me £50!! I've included a couple of photos taken using this adapter to show how good it is. £25 posted (fees paid via Paypal).
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