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AngryDonkey

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About AngryDonkey

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    Star Forming

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    Male
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    Oman
  1. AngryDonkey

    What’s your best space jokes?

    Strange, latest I heard was that it was seen on a speed camera but they couldn't work out how fast it was going....
  2. AngryDonkey

    Pointing the Wrong Way !!

    Oh no they're not!!! Sorry, couldn't resist. It's the time of year....
  3. AngryDonkey

    ASCOM All Sky Camera Software

    For once I am ahead , the latest preview release (0.9.10.2) already includes the ROI option. The full list of improvements: Region of interest / subframe capture -> If you are using this please read the AllSkEye manual. ASI cameras in particular have some restrictions on frame dimensions which cause errors if not adhered to. Improved recovery mechanism which can deal with some camera and USB related issues (there is a watcher timer now to check for 'never ending' exposures and 'black images'). If errors occur the system can now restart the acquisition loop as well as restart the application itself if needed to try to rectify problems. Font size can now be set as required for the entire app (no more reading glasses) Date/Time format in the FITS header was aligned with he FITS standard For the next release the main thing I am working on at the moment is hot pixel removal. With the festive period coming up it will probably be January before I can release it though. Kind Regards, Mike
  4. AngryDonkey

    SGP

    Sorry for coming back to this late. Did you manage to sort out the above issues?
  5. AngryDonkey

    First Light for the QHY163M & Tak FSQ-85EDX

    Mine seems to be pretty tight, I haven't seen or felt any movement yet. I'll give it a good try next time I'm out to double check.
  6. AngryDonkey

    Considering full frame Osc

    Sorry for hijacking but would you know the backfocus distance for the flattener? Unhelpfully the manual does not seem to mention it....
  7. AngryDonkey

    First Light for the QHY163M & Tak FSQ-85EDX

    There is also now the 1.01 flattener which will extend the imaging circle to full frame for the FSQ85 (really to what it should have been in the first place...). Got one on order, in fact it should arrive today. Of course it won't work with the reducer. Nice image! I've got very similar equipment and it's been trouble free and a joy to use so far.
  8. AngryDonkey

    Polemaster - Accuracy

    To be honest even at the resolution the Polemaster is working at, I sometimes find it hard to accurately align the two circles during precision alignment purely because the mechanics of the mount are not fine enough, so I don't think I would benefit much from increased accuracy. Having said that since using the Polemaster I've not had any issues with guiding whatsoever so it definitely seems to be close enough. One great thing I like about the Polemaster is that at any time (even during imaging) I can monitor the polar alignment without having to interrupt the sequence. This way I can easily see if deteriorating guide performance could be related to polar alignment.
  9. AngryDonkey

    Polemaster - Accuracy

    The only thing I can add is that at lower latitudes you should also enable atmospheric refraction compensation. For this to work the camera must be orientated as requested by the manual i.e. USB cable on left when looking from the front.
  10. The podcast is here: https://www.bbc.co.uk/programmes/p06srg6m Still remember how chuffed I was when I got a double cassette deck being able to copy tapes...
  11. AngryDonkey

    EQ5 for Imaging?

    What!?!?!? I've been doing something wrong.... Olly, from your experience would one be enough to get the Mesu and the TEC140 or would I have to part with both? Any bonus for twins? Thanks for you help! To add a small amount of value to the thread I can only echo some of the above advice. Have a good think on what your goals are for the medium future and what kind of mount would support it. If the more expensive one is completely out of reach then the decision is made but if the choice is waiting a few months to get a mount that will better suite what you want to do, then I would opt for that. This will give you good time to find a good second hand one.
  12. AngryDonkey

    Postmaster or this scope

    I assume you mean this (Polemaster): and not this: Sorry couldn't resist To answer your question, personally I think the Polemaster is a great piece of kit and makes polar alignment really easy. It is however expensive and similar alignment can be reached with other (cheaper) means, which might however take a bit more effort to setup. So if money is an issue then I would definitely spend it somewhere else. If you search the forum you will find a lot of people are using SharpCap (which is free) to polar align with a short fl guide scope and a cheap CMOS camera. This might tie in nicely if if you want to invest in a guide scope and camera. A good thread is here: https://stargazerslounge.com/topic/298664-polemaster-diy-build/
  13. I think this speaks volumes, with users needing to upgrade from Avalon mounts but not from Mesu mounts.  In defence of the Avalon mount I don't think that's an entirely fair assessment . Looking at posts here and across the net, people who buy the Mesu often have a permanent or semi permanent setup and are less likely to sell it in a hurry. The payload capacity is huge and at the moment I couldn't think of a better mount for this purpose than the Mesu (and there have been at least three Mesus up for sale on ABS recently, as well as a few Linears...). For me the Avalon is really in a different category. It's definitely a portable mount, it's easy to use, has great tracking and is largely hassle and maintenance free. So for those reasons it's my top choice for a field mount (although I'm sure there are other good options in that price range) and I can't actually remember anyone giving it bad reviews. So really when comparing the two it's a question of portability vs payload and getting the right tool for the job.
  14. AngryDonkey

    SGP

    In SGP you need to create targets in the sequence window (Target List). It doesn't have a database so you need to enter RA and DEC (there is also and option to import from an online source). You can also use the framing and mosaic Wizard which is great to frame your shots. This will also automatically create the target for you. By the way you should read through this tutorial, it's a great way to get up to speed with SGP and understand the general workflow: http://alexastro.com/Alex Home Page/Articles/SGPFirstWeekv31.pdf It's a fairly long pdf but well worth the time and really recommended!
  15. AngryDonkey

    SGP

    In general it doesn't really matter where you slew from i.e. the handset, your mount software or SGP (there are slew controls in 'Control Panel -> Telescope' but they are a bit fiddly) because the telescope talks to SGP which should keep everything updated. Firstly you need to make sure that you carry out an initial 'Sync Home Position' command whilst the mount is in the 'home' position i.e. pointing at the pole with counter weights down (on a conventional mount). This will give the mount a rough position to work with. It might be the case that EQ mod automatically does this when the mount starts so make sure that the scope is in the CWD on start but I'm sure you are doing that anyway I personally do the first slew from my mount software or the handset for the reasons mentioned above (to calibrate PHD2), then I use the 'Scope Centering' docking module in that position and click 'Solve and Sync'. This will carry out one platesolve and update the mount on it's exact location (if you mount is able to build a model of multiple points then every subsequent plate solve in SGP will add another point to the model). Then (once I've finished everything I need to do here) I use the 'Center Now' button in the 'Target Settings' window (the one that pops up when you click the cog next to the target). This will then kick off the exact centering process and get me to my target. As mentioned above if you want to go to the target straight away you could also: Polar Align Make sure the mount knows it is in the home position i.e. 'Sync Home Position' Open the Target Settings in SGP and use the 'Slew Now' button to slew to the target (this will be off as the mount hasn't got an exact position yet) Open the Target Settings again and click 'Center Now'. This will now exactly center your target I think this is the quickest way to get to the target. A word of caution though, if the target is near the meridian (and your camera close to the tripod or pier) I would build in an extra step to confirm that the mount definitely knows where it is to avoid any possibility of pier or tripod crashes.
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