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  2. Thanks for the info. Now I understand why there is a time difference. That was very helpfull. Do you also know if there is a way to check if pec+sidereal is still working, because I have always doubts, when I use the mount the next day, starting from park-position, if it still will use my pec corrections ?
  3. Hi, welcome to SGL
  4. Hello and a warm welcome to the SGL.
  5. They've come out very clear what the targets are. Did it take a long time for DSS to process that amount of images? Also your stars are nice and tight did you stop the lens down or is that not the nifty fifty?
  6. I have the 8ah Tracer and use it for my newts fan. It comes with a cable that ends in 12 volt cigar female socket. So the cable from your newt would end in the standard male 12 volt, like the ones with a satnav. Just ensure your cable from the newt has the correct fuse. My original cable for the fan ended in spade connectors so I chopped them off and wired in a 12 volt male socket. Excellent battery and life!
  7. You have got ASPS site location and time zone set up in the parameters ? Assuming you have set up the Indexes/FOV correctly what happens when you run ASPS by itself - NOT FROM APT - does it work - and yes you will have to set up RA/DEC. Just browse for your image file and put approx RA/dec in and click Platesolve button. A log is created Plus Windows permissions this will cause no end of problems - where did you put ASPS and the Index's ?
  8. Thanks for all the info after all this Trouble I asked Harrison's to test it they were very good about it. They Tested it and after all this mucking about it turned out that it was a dud. And they are sending me a new one Excellent news I have bought a few things of them in the past and the first time that an item went wrong they came up Trumps so thank you all at Harrison's it has always been good to do business with you. It is out of stock at the moment but I can wait so thank you again and all the members thank you
  9. -8.5°C and it's been there for a while now. Just added a barrier to restrict the airflow from one side of the cooler to see how much it affects the cooling. Went down a bit more but now on the rise and back to -8.5°C.
  10. I'm planning on starting to manually dither my frames. I'm using a star adventurer unguided, would I be right in saying that I could manually dither by pressing the arrow buttons to slightly slew the mount every few frames and slightly tweak the adjuster on the L bracket in the same way? I'm going to start using Backyard Nikon, can I use this to ensure my target stays in the field of view so I don't dither too far?
  11. I had something like that in the back of my mind :) It doesn't have to stand forever. Just for as long as you're going to want it... James
  12. Thank you very much, guys. Glad to hear that they are good. Is there something else I would need for connecting the cooling fan to this battery (e.g. adapters)?
  13. They dont give much away,I want to see some gain vs read noise vs dynamic range curves.
  14. Thanks for sharing that. It certainly gives me more to go on. Time for a bit of reading to learn what gradient merging means
  15. Looking for a scope thats good for dso and galaxies..like 200/800 awesome for DSO and for bigger galaxies..but heavy
  16. Shut down and powered off and removed the TEC1-12706 leaving just the smaller Peltier TEC running at 12v. Camera temperature has got down to -7.8°C and still slowly going down. Conclusion - the TEC1-12706 is not suitable for this application (though it worked for the dehumidifier). Nowhere near the -20°C I got with water cooling but not bad. Restricting the airflow a bit by directing some up into the dome may reduce the cooling a bit but we'll see.
  17. I guess i'll ask the very noobish question then. I get that a non-EC will be able to achieve the level of precision on guiding that the EC has or potentially can achieve but so far i really haven't any evidence (a guide graph from a few mounts would be good and if someone has a link to a few of these that would help) to suggest apart from theoretical that the EC will be better. But the question really is, will you have to tinker and worry less (settings or physical mount) with the EC mount to achieve the precision when compared to that of non-EC?
  18. Yes. I ran a bead of bitumen sealer around the edge of the ground board (read sleeper) / slabs before and could find no evidence of water ingress when I had to dismantle the thing. New sleepers have an expectancy of 10-15 yrs, I'm just about 68 now so if they rot in 15 yrs time I'm not sure I'll be too worried...
  19. Kronos831

    M81 and M82

    Ευχαριστω! Τα δικα σου σκίτσα ακομα καλύτερα!
  20. Thanks, yes I have seen them for £69 on fleabay I have asked the question about adjustability for focus.
  21. My ASI120MM (USB 2 version) guide camera has been in use for 2 to 3 years without any issues, but recently it failed to connect to PHD2. I tried with Sharpcap and that too failed to connect. Sharpcap recognises the camera but gives an error message when it is selected. I also use Sharpcap on another laptop and the camera is working normally on that PC, so it must be a software issue with my observatory laptop. I have been in touch with support at ZWO who were helpful but finally admitted they could not find a solution. The drivers have been uninstalled and reinstalled and tried different versions but still have the same problem. Below are screen shots of the camera properties in device manager. I think the key to the problem is on the events tab in the information box - "Device USB/VID_03C3&PID_120A/00000 requires further installation". I would be very grateful if anyone can explain what has happened and suggest a solution. ZWO120.pdfZWO120.pdf
  22. Or just keep it simple with this one. Adds 16mm to the path. HTH
  23. Well I was just using a ieq45 pro 2 weeks ago, and now I have the cem60ec so you can call it similar enough. The payload's the same: Edge 8 at 0.54" imaging scale. I get about 0.1-0.2" RMS improvements over the ieq45 pro over long runs, and my excursions are withing 1" vs the sometimes 2-4" previously. The biggest differences as stated before is I can use dimmer stars cause I can run at 5 seconds instead of 1-2 second exposures for guiding. I don't think I am done yet with the cem60ec in terms of what guiding precision it can achieve as I haven't really play with PHD settings or route my usb3 through the mount yet. While the numbers are somewhat meh, the resulting star shape is better on the CEM60EC than I have ever seen in the ieq45 pro. On the 45 yes it round but some frames will have slight elongation in RA. On the CEM60EC so far no frames have shown that. The PE spec for the non-EC is P-P as that's the larger value. For EC versions the encoders keeps the excursions within +/- 1-1.5" max. And since those excursions of RA are momentary RMS is the better value. And of course the RMS value looks better for marketing as well haha. So the specs are not comparable but they don't need to be. I think the RMS version is better because that's what you are after in a real imaging session and if your mount consistently goes over the claimed RMS limits (0.3 rms for CEM60EC gen 2), you can challenge iOptron to fix it. Granted, 0.3 RMS spec is likely too tight already to really have a convincing argument to sent to iOptron when your local seeing likely puts it at a higher number. All said, EC or no EC is a personal choice. You can achieve sufficient performance without EC to get very good images. The EC is just a bit of extra on top.
  24. Today
  25. Well iOptron's not so expensive unless you go to the CEM120EC and EC2. And there are people talking about issues with CEM120s. I find that Astro-Physics owners are the ones who seems to keep the most quiet about their issues, and there are issues if you look at the Yahoo forums. I find it most interesting that some have spend a lot of money on their AP mounts with encoders, and then get no better results than people who have spent a lot less, who then tells everyone to buy AP. Often the reason stated is that they have zero issues with their AP mount and it resolved all their imaging woes. Personally, I have with my ieq45 pro a bout of issues at the start to do with backlash on DEC. After resolving it to the best the mount could do and figuring out the settings needed in PHD2 it has just worked. So I really don't understand the mental state of people who has issues on expensive equipment and tells everyone they don't have any issues. Interestingly. A fair number of AP mount owners have come out saying that their AP mounts did not give them better results than mounts like AZ-EQ6 or EQ6s. And recently I have found that some of the same people who buys the high end mounts were throwing away 50% of their frames and calling it a good take rate. I know Olly has experiences showing the mesu doesn't lose any frames which to me is a much better measure of what's what than the marketing heavy but substance thin way some of the NA manufacturers seem to maintain their market share.
  26. The slab could be moved further inwards perhaps, leaving the sleeper overhanging by a little? Probably wouldn't need to be very much. I have to admit that old sleepers from an actual rail line soaked in years worth diesel and oil (and probably a lot of other stuff I'd prefer no to think about) seem pretty much indestructable and I'd not be surprised if they lasted decades sitting on the slab as Francis has drawn. I'm not sure it's possible to get those any more though, probably because they're soaked in years worth of diesel and oil and other stuff I'd prefer not to think about. I've no idea how tolerant brand new ones are of abuse. Were you planning on having the moisture barrier completely cover all of the ground under the observatory, Francis? James
  27. mariosi

    Mars 21/4/19

    My pleasure to view!
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