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Found 167 results

  1. Hi, I wonder if someone could please advise me on a few issues I seem to be having with my new Celestron Evo Edge HD 8" Telescope. The motors appear make a strange sound. This occurs when the scope is stationary, when adjusting the position manually or going to an object automatically. I have made a short video demonstrating the sound and can be heard during the first part of the video. Then after adjusting the position slightly it stops, then later on returns again. I don't believe this is a tracking noise as it intermittently occurs. Please note I am not referring to the louder motor noise but the quieter noise in the background. Another issue I am having is when I connect my tablet to the Telescope via the inbuilt Wi-Fi, the power status light, wifi light and tray light all appear to flicker slightly as if there is an electrical issue. I can't believe that I should expect the tray lighting to flicker??? If anyone could advise if the above is normal or not, I would be most grateful. Thanks, Jamie.
  2. What should I buy for a Canon 40D (Astrophotography): a Celestron EdgeHD 8" AVX or a Celestron AVX SCT 9.25" since the price differs only for 100EUR? I want to have nice DSO pictures but be able to see planets as well. Been using a 114mm reflector for 6 years. Thanks in advance
  3. I tried to use the GoTo function on the Nexstar SLT 130 for the first time last night. I got through all the steps to set in date, time, place etc. But When I have to find 3 objects in the night sky, I have to use the direction buttons on the handset, whenever I press one of those 4 buttons, the handset just dies out. The screen becomes green, it says nothing on it, until 1-2 minutes later, it says something about error 16 or 17. Keep in mind that the whole handset works up until the point I have to use it to align. What this means is that my scope does not move up or down, nor right or left, since it just shuts down. What I've tried: - Change batteries (AA's) - Try to use a power supply - Updated the firmware in the handset to the latest version What could be the problem? - Mehtevas
  4. Hi everyone, I seem to have an issue with my NS camera that I can't figure out. Whenever I take a picture, every bright object in it, especially stars, have a black shadow on the right part of the image. I have disregarded the effect coming from the telescope or reflections from outside, because the shadow always appears on the right, regardless the angle of the camera with respect to the telescope. The effect is very apparent when I'm focusing. I have attached several pictures to see if someone can give me a hint: - ...004: focusing street lights - ...006 Calibration (Dark) - ...008 Calibration (Bias) - ...010 Calibration (Flat): pointing to a street light and trees - ...013 Focusing a star - ...019 Picture of street lights - ...003 Focusing a bright star - ...5420 Picture of a star field
  5. Hi I am new to astrophotography and photography in general. I have a celestron 130 slt and a nikon d5300 with t ring and extension tube, I am able to connect this all up and focus on planets when the are very small I get little to no detail as it gets blurry when I use higher lenses so I was wondering is it possible to use the lens (18-55mm) I got with my nikon aswell to zoom in when I have clear small image? Thanks
  6. Will show working demonstration in my observatory. A full hyperstar imaging setup: 1) Celestron 8 OTA (New retail price: £950) 2) Hyperstar V3 lens (New retail price: £990) 3) Starizona micro focusser with electronic control (New retail price: £600) 4) Starlight Xpress H9C one shot colour CCD camera (New retail price: £1700) Used, but in 100% working condition. New kit will cost upwards of £4240. I am offering at £2000. Please see astro images taken using this setup. Collection only please from South London, postcode BR3. Please contact via email so that we can exchange contact numbers and arrange a demo before purchase. Will show working demonstration in my observatory.
  7. Hello All, I am new to this forum and find this forum extremely useful. I have gone through almost all the threads requesting advice on the binoculars for stargazing and hopefully I will not frustrate someone for this additional thread. I live near San Francisco, CA, USA and in my early 30s. I am planning a trip to Bryce Canyon in 2 months. That place is supposed have very less light pollution and is recommended for Astronomy/Stargazing. I have bought the Sky Safari 5 android app to get me started into astronomy and hopefully I will continue this as a hobby for a long time to come. I have decided to buy 10x50 bins and have found few of these below that are in my sub $99.99 range. I am looking for the best value for the $$ in this range. I will be carrying them in flight and will not be able to baby sit them. https://www.bhphotovideo.com/c/product/421389-REG/Bushnell_120150_10x50_Legacy_WP_Binocular.html - $84.99 - BaK-4 - Fully Multi Coated - Waterproof - Fogproof https://www.bhphotovideo.com/c/product/917674-REG/celestron_71424_10x50_cavalry_binocular.html - $89.95 - BaK-4 - Fully Multi Coated - Waterproof - Fogproof - Nitrogen Filled https://www.bhphotovideo.com/c/product/1086598-REG/celestron_71362_10x50_landscout_binocular.html - $74.95 - BAK4 - Fully Multi Coated - Waterproof - Fogproof - Nitrogen Filled http://www.getolympus.com/us/en/binoculars/trooper-10-x-50-dps.html - $69.99 -($20 coupon) - BK-7 http://www.telescope.com/Binoculars/Astronomy-Binoculars/Orion-Scenix-10x50-Wide-Angle-Binoculars/pc/-1/c/5/sc/72/p/9333.uts - $102.99 - BAK-4 - Multi Coated (Considering because I read some reviews about quality optics and wider field of view) Please let me know your recommendations, if you have any. Thanks a lot
  8. Hello I have recently brought my first telescope and am looking to upgrade the eye pieces. I have a celestron powerseeker 127eq and was wondering which eyepiece set would best suit the telescope for planets and galaxies. Thanks.
  9. Selling my celestron starsense auto align...mint condition..used only a few times but now got my eye on a polemaster as it would suit my needs better I think.. £200..
  10. After upgrading to a C8 SCT, I have for sale my Celestron Nexstar 4SE Maksutov OTA. This is a cracking scope, which punches well above its size. Used this on my Goto mounts for the last 6 months and given me great views through it. Please note that this is originally intended for the Celestron SE Goto mounts, which have fixed dovetails attached on the left side of the tube on the scope. However, before I sourced an actual SE Goto mount I used to use it on my Skywatcher Stardiscover Goto mount with no issues at all by replacing the fixed dovetail on the scope with some tube rings with a dovetail so it could be fixed on the right hand side for that particular mount. This also has a fixed visual back, with a flip mirror with access to fit a camera, or other EP in the lower position if needed. Optics are in excellent condition, as is the tube itself (see images below) I am looking for £100 for the OTA only with the Astrozap dew shield. If required I can also supply the tube rings and small dovetail to allow it to fit on other mounts OK via the right hand side of the tube. This would be an extra £12 for the rings and the dovetail. If you need the tube rings fitted before I send it off let me know. I will of course also supply the original dovetail that came fixed originally to the OTA also. Can be collected in person, or willing to meet up perhaps (PM me to discuss), or willing to post via Parcel Force Express 48 for an additional cost of postage for £19.28. Payment via PayPal (friends and family no extra charge, but add 3.5% for payed for services), direct bank transfer, or if collecting/meet up it can be cash on collection. Pictures below. Any questions please ask. Gus Note: finderscope and mounts are shown for reference only and are not included in the sale. Fixed on a Celestron 6/8 SE Goto mount below; Withdrawn from sale Fixed on a Skywatcher Stardiscover Goto mount below; Tube rings and dovetail extra for £12 below;
  11. Hi guys, Okay so I have a few questions regarding my AVX mount that have basically generated from me reading up on setting up my mount. Please don’t think I’m lazy, I have read up a lot regarding my new mount (hence the questions) and learned a lot so far but as I’ve only had the mount a week and due to work and time constraints I have been unable to do any more than literally unpack the mount and put it together. I should mention it took 30 minutes to flatten all the cardboard ready for Mr Recycling Man but the more packaging the better so no complaints there at all!! So, my questions are so I can have a one stop shop answer reference rather than trying to remember where all the tips were on this wealth of knowledge forum. Please excuse my ignorance, I’ve had my trusty Sky Watcher 130p AZ2 for 6 years so I’ve not just jumped in blind ..... 1) Why is there a necessity to ensure the mount is facing the correct direction when setting up the scope? 2) I’ve heard similar comments made with regard to members permanent piers in their observatories, again, what is being referred to here and how would you ensure a circular steel pier IS facing a correct direction? 3) Does the peg on the tripod Base plate need to be directly over one of the legs or is it fine where it is positioned? (In between two legs) 4) Is there anything I should do during daylight hours other than align the (finderscope) in preparation for the alignment process? 5) Do I need to update my mount with the latest firmware (?) Software upgrade or can I assume as I bought it 3 weeks ago it will come up to date? 6) HOW do I update my firmware software? 7) How accurate does the declination need to be? Can I work off the (slightly crude) scale on the mong or should I be looking at getting a digital spirit level for accuracy? 8) With vibration in mind, until I sort out a permanent pier my scope will be on the tripod in the observatory, should I allow the tripod legs to stand on the soft flooring foam tiles or should it be on the wooden floor of the shed? 9) Do I need to worry about leaving my spanking new scope and mount exposed to the elements, all be it under a waterproof bike cover in the obs and secure? Slightly nervous ? I really appreciate your time in both reading and hopefully replying with some useful guidance! All the best, looking forwards to those clear skies!
  12. 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.
  13. FOR SALE: Lynx Astro Silicone Power Cable for Celestron Mounts This is a used Lynx Astro Silicone Power Cable for Celestron Mounts purchased from First Light Optics in December 2016. It is the more expensive version with the 5A fused cigarette plug on one end. See: https://www.firstlightoptics.com/astronomy-cables-leads-accessories/lynx-astro-mount-power-cable-for-celestron-mounts.html for more details This is a very high quality cable which maintains full flexibility at very low temperatures. I am selling my Celestron scope so I no longer need the cable. NOW SOLD
  14. Hello all, I bought relatively recent a SCT 0.63 reducer/flattener for my C6. I'm planning to use it with the ASI1600 camera, but it seems that I can't figure out the proper spacing distance between the reducer and the sensor. That or there's another problem with the scope that I can't figure out. The first distance that I tried was ~105mm. I achieved this by using a SCT adapter to T2 which is 50mm + a Baader VariLock set to ~28mm + the filterwheel 20mm + 6.5mm the distance from the sensor to the camera thread. + the filter width, it should be ~105mm. I understood that the closer the sensor is placed to the flattener, the better the field is flattened, but the reduction is weaker. I didn't mind that. I then tried to use an M48 (has also a T2 thread inside and deeper) to T2 adapter which was about 15-20mm. In both cases the stars were not in focus away from the center, with an out of focus elongation towards the edges (I don't know which word describes this). The following M13 is with the Baader VariLock and the Crescent was with the shorter adapter. I didn't have time to test without adapter at all and now it's going to stay cloudy for a while. Don't mind the quality, the M13 is unguided with ~20min (6s subs), the Crescent is ~20min (1min subs), guided. Very bad seeing. Did anyone use a C6 with a 0.63 reducer/flattener and APS-C or 4/3 sensor with success? Or does somebody know which is the correct backfocus distance and how to get rid of the distorted stars towards the edges, but still using the same scope + flattener? Many thanks and clear skies, Alex
  15. I recently got a Celestron Astromaster 130EQ Telescope for my birthday and have been having loads of fun looking at and taking photos of the Moon over the last few days. One issue I had with the scope was that I couldn't angle the Red Dot Finder down enough to align it with the object I could see in the Telescope. I have been using it by taking note of the distance the red dot was out and trying to direct the telescope taking this difference into account. It occurred to me (before I looked at this forum) that if I could only raise the tail of the red dot finder higher (I could see that to bring the dot down the LED at the back was raised), I could get the alignment accurate. I took the mounting bracket apart and looked at the design of the plates. I then designed some new ones in Sketchup widened the back dimension and, as I have a 3D printer, printed the new ones out. The new bracket plates are 2mm wider at the back hence raising the back of the finder higher by 2mm, which in turn lowers the red dot down to it's correct alignment point. I thought I'd post on here to say how I resolved this issue as I notice that others had also suffered from this problem. I have posted the STL (design) files for the 3D parts up onto Thingiverse should anyone want to download and print some for themselves, I will also put out an offer to print some for others should they not have access to a 3D printer (just PM me). Here is a picture of the new mount plates in place. Terry.
  16. Currently I have 25x70 SkyMaster bins but I think they are too high magnification to be gliding the night sky with (I got them for £35 so I didn't mind much). So I'm on the lookout for a set of Skymaster 15x70 or 12x60 bins Thanks, Tom
  17. Hi astropeeps Can anyone explain why the view through a 21mm celestron ultima duo eyepiece frames the moon perfectly, but when I attach the camera it acts more like a 18mm eyepiece and a third of the moon is out of frame? Do I need an extender of some sort or a better camera? I have a LUMIX G7, micro 4/3 mount. Cheers The Nut
  18. Hail esteemed astropeeps I set up the Celestron wifi module on my Nexstar 6SE (good wifi signal, no problems connecting), opened Skysafari 4 onth' IPad, but all I got after I had been into skysafari settings and put in the IP address was connection failed. I have the settings on direct input (it is like that on the actual wifi module too) alt-az go to, selected my telescope, but always connection failed. Tried it on sky portal on IPhone 6, and whilst it did connect and slew the telescope, the alignment procedure failed every time. Does anyone one have any advice, please? Why won't Skysafari 4 connect (actually 4.5.3) and why won't sky portal align? I've checked other forums and other posts and all the settings seem to be correct. What button have I failed to check? If you have screen shots of any settings, that would be helpful.
  19. Hi there. I finally decided to replace my old Orion Starshoot with a nice new Neximage 5, and at the same time got a laptop sporting Windows 10. The camera came with iCap software, version 2.2, and installation proceeded without incident. I got to the point where iCap was recognising the camera, but when I clicked on 'OK' iCap stopped almost immediately, at which point an error message came up announcing that iCap had closed and Windows was (allegedly) looking for a solution. I repeated the 'launch' exercise several times, always with the same result. It's really frustrating, as I just can't get on with imaging at all. Does anyone have an idea what I could try to get my Neximage up & running properly? Thanks Alan Stewart
  20. After collecting my new Celestron Nexstar 6/8SE Goto mount off Parallaxerr last Tuesday, I got a brief chance tonight earlier on to give it a brief first light. So, here is a brief summary of how things went. The scope I used on the mount was my Celestron 4SE Maksutov; Setting up. Compared to my other Goto mount (Skywatcher Stardiscover AZ Goto mount), getting the mount levelled and set up was much easier. Trying to do this with the other Goto mount can take some time, especially when trying to fit the top Goto part to the mount itself in the dark, which requires a torch and some patience to get the securing screws located correctly. On the Celestron mount you can do this very easily, with notches in the top of the mount to allow easy alignment with the securing screws. Alignment. As there were quite a few clouds in the sky, I went for the quickest alignment that the Celestron mount offers; one star alignment. Not expecting much after the initial alignment on Sirius, I was pleasantly surprised. After taking the tour option to look at some double stars, planetary nebula etc, all objects appeared in my 20mm EP fov. I then used the Constellation tour, and looked at objects in Auriga. M36, 37 & 38 fell nicely in the fov also. Looking forward to doing a three star alignment as soon as weather permits, so I will do a more detailed report when possible. From just a brief hour session using just one star alignment if this mount can get most things in view doing just that then it should perform even better when a three star alignment is performed.
  21. Hi there, could someone please provide depth and thread pitch for the front cell screws on an 8" Edge HD, as in the empty socket portrayed in the attached photo:8" Edge HD, as in the empty socket portrayed in the attached pho Kind Regards Paul J.
  22. 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.
  23. Hi there, I'm wondering if any SGL members might have a spare secondary assembly for an 8" EdgeHD. Basically, the previous owner of my Edge did something abominable to the collimation screws which mean that they will not move. I suspect the original owner has used a threadlock product or similar on the collimation screws. I am therefore looking to replace the entire secondary assembly. Shipping the scope off to David Hinds is one possibility and I am pursuing this, however I'm also looking at other options, such as replacing the secondary assembly myself. Kind Regards Paul J.
  24. New Celestron 8SE owner and not impressed. Alignment is a bitch. I finally "succeeded" with the three-star align and then the scope would only take me sort of close to where I wanted to go. Had to adjust manually. How spot on is alignment supposed to be? Tracking? I can't tell from the inadequate instruction manual how to engage tracking once I'm on an object. The whole exercise was supposed to allow me to do some astrophotography with my Canon 5D and related camera-to-scope attachments. Finally, I was surprised to learn (I think) that one needs to go through the alignment process for each session. The "computer" apparently doesn't hold the alignment. That right? Again, I can't find any reference in the instruction manual! If this is the case, it's certainly inconvenient. Any help or advice will be appreciated.
  25. I am a newbie and want to know how to view Jupiter. When I do this myself, when I start focusing it becomes smaller and brighter and I am not able to observe the bands. PowerSeekerAZ.pdf
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