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  1. Past hour
  2. My first light of my QHY268C as I discuss here: https://skastro.net/first-image-from-qhy268c-and-fsq85/ It took me seven imaging sessions on different nights to simply get 47 x 180 subs. I have done little else since due to the permacloud.
  3. Wow! Just goes to show the cost and work to keep a good website going. Makes me appreciate "you know who" even more!
  4. Just for info, I've started a thread on a CNC forum - great chaps there too- and getting a lot of suggestions. All in all it looks like a tape scale + encoder readheadwith a 0.1um is the way to go. The challenge is to find the hardware in the used market to contain the expense and stay true to the spirit of the project. Read-heads seems fairly attainable on ebay ( like less than 100$/£ for a RGH22/RGH24Series if you're lucky and patient). If I could only find linear scales that are inexpensive then bingo! but I seem not to find any of them – the optical ones with 20/40microns gratings, at least. Still puzzled about how to salvage them from a CNC machine. Also, what is not entirely clear is if and optical encoder is better than a magneic one. The both are available to 0.1um resolution
  5. In these media saturated days the "standby for an important announcement" is a way to maximise publicity for your message. I wonder if it will be confirmation of significant water deposits - good news - but oh so much better if were discovery of a Clanger civilisation Jim
  6. Are any filters fully parfocal, or is there always a need to alter the focus when changing filters with a filter wheel for mono planetary imaging? James
  7. Never underestimate the power of the force! Now that I think of it, it is interesting they believe the universe has more "dark" matter than light! An even the most brilliant minds, don't understand it completely!
  8. That would imply the same correlation across the world at new moon and that is manifestly not the case. It is the geographical location of North West Europe that is especially prone to cloudy skies. Also, even when at full moon, it is bright enough to burn through the high haze that would otherwise obscure all but the brightest of stars. That erroneously makes you think that it would otherwise be an ideal imaging night if that blasted moon wasn't there. But the Moon has nothing to do with it and it would be rubbish even if the moon wasn't there.
  9. Have a Baader 2" Neodymium in good condition. Am looking to swap it for a Baader 2" Contrast Booster in good condition.
  10. I'm certain what ever this "amazing discovery" is, they could go ahead and tell us now! Why make us wait??
  11. Sounds like you should also remove all sgp installations and start fresh.... also probably need an internet connection to register the installation at the time of fresh install.
  12. these arrived this morning to make up a dew heater for the skycam and I thought yay looks dry so I can quickly solder up and fit into the dome. Quick play with the control module to set the light level trigger and then... oh no, only 6 resistors in the package, shoulda been 8 If I wing it with these 6 I'd be running them at 3.5W where they are rated at 3W, not good. Am wondering if I switch these across the USB 5v instead but I doubt the mini network-USB hub would be happy as well as being a very low W output. Will see how quick they can ship me the missing 2 resistors and decide what I do next as I don't think I've anything that'd suit in the spares I have.
  13. Sweet! It works! My wheel was on v1034 or something. Upgraded to 1049AR and all is well!
  14. Thinking back about 8 years, when I used my Celestron 127SLT, I seem to remember the instructions for the Nexstar controller suggested a 3 star alignment using stars as far apart as possible and in different areas of the sky. This may have had the calibration stars on it as well, I don't remember, but I know by the third star the alignment was about spot on. So I can only think that the 4 extra calibration stars on you CGX are just, like you say, to fine tune the calibration.
  15. Interesting... I haven’t updated mine in years “if it ain’t broke “. So, just back to USB for a sec. The quality of usb Components seems to vary considerably. I went through a few hubs & cable setups before I got things settled. Also using active and powered. I’m not sure powered are all equal and actively disconnect the feed from the computer port rather than just boost it. I know mine isolates it so I can remotely switch the 12v supply to the hub to simulate an unplug/plug of the usb. Works a treat. I think the Altair Pegasus powerbox can do this at a port level too. Be interesting to know if this SX update fixes your issue. For any remote setup the ability to simulate a plug/unplug is a must really otherwise you end up having to reboot/restart everything & bite nails hoping it comes back online!
  16. Honestly, something like a used RX 570 also offers very good value for money (though since it's an AMD offering, it will have no CUDA cores). A bit more expensive (as it's a general purpose GPU), but quite a bit more powerful for compute purposes. There are mining versions of these around as well.
  17. I use it for the UV/ IR cut, I+IR642,IR742,807 and a U filter. It's easier than swopping filters and just means refocusing.
  18. A low profile bracket with the 6x30 is a must really. The stock bracket is way to tall.
  19. When I had a 90mm mak recently I tried both the stock RDF and a 6x30 RACI optical finder (separately) on the scope. The optical finder was more effective (plus they are a more regular tool for me) but I felt that it didn't go with the very portable / compact scope package that I was after so I got on and used the RDF making sure that it was well aligned with the scope optics and managed OK with it. I don't actually have a straight through optical finder of any sort now because I much prefer RACI's.
  20. Do you find you need an RDF to go with it? I have trouble aligning my dob's RACI without the Telrad.
  21. A SW right angle finder is a good choice. https://www.harrisontelescopes.co.uk/acatalog/skywatcher-6x30-right-angled-erect-image-finder--bracket.html#SID=22 I’ve used one on a 100 mak but with a low profile bracket. Can be used as is or can remove the riser part with a minor mod. Replaced the stock screws with nylon ones to hold the finder. This pic shows it on another scope. https://www.amazon.co.uk/Yunir-Adjustable-Astronomical-Telescopes-Sky-watcher-default/dp/B088WRYFXT/ref=sxts_sxwds-bia-wc-p13n1_0?cv_ct_cx=laser+pointer+bracket&dchild=1&keywords=laser+pointer+bracket&pd_rd_i=B088WRYFXT&pd_rd_r=4ba2878e-2ea5-4959-a9ab-1b170e9b4a62&pd_rd_w=aIu7E&pd_rd_wg=uSVuY&pf_rd_p=01fd0f51-3837-49b3-b7d3-05520a5467f4&pf_rd_r=WD4Z2MMS3XNC86G39SD4&psc=1&qid=1603446827&sr=1-1-ac3a866f-801f-44fe-9e94-bb9a271cf6b8
  22. Hi i upgraded my bolts for my HEQ5 i did try the bolts with the ratchet like the one linked in this thread but they are to bulky and hit the polar scope So i got the upgrade bolt from 365astro they are made like the original but much higher grade metal so wont bend your need to ring Zoltan at 365astro he will get them in for you they are about £5 each
  23. Oh WOW really impressive! What Meteotux PI options did you use? Cheers!
  24. That's right. The plate solution will tell the mount where it's pointing and that's all it needs to know in order to find the target and return to it if necessary. The key thing is that Tracking and guiding have nothing to do with target finding. They are independent processes. BTW, my Mesu mounts only have a one star alignment option anyway. Olly
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