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Showing content with the highest reputation since 22/04/19 in Blog Comments

  1. 2 points
    Thanks! I forgot to mention we had our Bichon Frise as well....easily confused with the sheep?
  2. 2 points
    Brilliantly written David. Reminds me of my last holiday in the Lake District where there were really dark skies too, and like you I had a car full of not only my family and luggage; but Wiggins our dog too! I don't have a smaller travel scope so couldn't take anything with me, although I wish now I'd just taken a pair of binoculars. The skies were brilliant, and just like you mentioned, I remember standing out in a field staring up at the skies just making out all the constellations, until I heard the eeriest loud noise I've ever heard. I can only assume it was a fox, but it was so strange I really couldn't make out if it was from an animal or a human! Certainly it was enough for me to decide I'd probably spent long enough standing in the dark in the middle of a field by myself. (I think I would have been out all night though if I'd had my scope with me). Thanks for posting it was a great read.
  3. 1 point
    Here is a photo of the gears of the "going train" and escapement laid out on the table. I'm trying a larger escape wheel and anchor to reduce the need for precision 3D printing.
  4. 1 point
    Installing the main control software on the Client computer This is KStars and includes Ekos which connects to the INDI drivers in the remote RPi via LAN. Go to the KStars web page for instructions. For Linux there in Synaptic Package Manager from the Administration menu. Search for "kstars" to select for installation. Once KStars has been installed, run it from the Education menu and choose Tools > Ekos More to follow...
  5. 1 point
    Installing the Operating System and Astro software The Raspberry Pi uses a micro SD card as its main drive and this behaves the same as the hard drive on a computer except that this card can be removed and data read from it or written to it. In fact the way the operating system is installed on it requires it to be out of the RPi. This tutorial will describe how the operating system is written to the card, the system set up with computer name, user name and password and then further software installed to permit remote control via LAN and the astro software to capture images and control the hardware such as filter wheel and mount. You need an SD card reader attached to your main computer. First job is to download the operating system on the main computer and write it to the micro SD card. Go to the Ubuntu MATE download page, choose the Raspberry Pi version of Ubuntu MATE 16.04 (takes two clicks) and download it. The later version (18.04) was found not to work properly. Next is to unzip it and write the image to the micro SD card. In Windows this can be done with Win32 Disk Imager. For Linux I recommend Etcher which works well (my main PC uses Linux Mint). Etcher unpacks and writes the OS to the card in one go. Plug card into reader (with adapter if required), run Etcher and select the micro SD card - careful here not to select you HD or other device. Also select the downloaded file. Set Etcher going and a few minutes later the OS is written to the card. With Windows, install Win32 Disk Imager, unzip the downloaded file and chose the image file (.img) and SD card in Imager and follow the onscreen instructions to write the OS to the card. There is a script that has been written for installing the INDI drivers onto the card in the RPi that covers what we are trying to do. This is AstroPi3 and pretty much does it all. The instructions given repeat what I have written above. The lines of code can be copied and pasted from the web page into a Terminal window on the RPi. Applications > System Tools > MATE Terminal. Use Firefox on the RPi to go to the AstroPi3 page and copy/paste each command line to the Terminal window. Hint, 3 clicks selects the whole line for copying. The script installs INDI and a few other items of astro software but you don't have to accept it all if you don't want it. The script may be edited to comment out unwanted items but you need to be careful and know what you're doing though "it's not rocket science" It also turns on SSH so that further command lines can be added from the main PC through its Terminal window and SSH. At this time the human interfaces can be disconnected from the RPi. With this script you end up with a usable system that will capture images and control most of the astro equipment on the market. Controlling DIY equipment is another matter and one I've worked on successfully - this will be another Tutorial. The script takes an hour or more to run and has a few y/n responses needed. We now should have a working system on the RPi. Next to install and use the software for the main computer indoors (or maybe warm room).
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