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By Victor Boesen
Hi! I purchased a Raspberry pi 4 4gb not so long ago with the intention of running a NAS and some other stuff on it. I have since then considered the possibility of using it to control the alt/az position of a mount like the Skywatcher AZ GTi with a python script running on the raspberry pi. I haven't purchased the mount yet since I'd like to hear if it would be possible.
A little more information on my main objective:
Weather satellites and radio has recently caught my attention and I'm therefor considering to mount a directional antenna on the skywatcher AZ GTi mount which then tracks a chosen satellite across the sky. The raspberry pi would be running a program that would send the alt/az coordinates to the mount. I have thought about sending the alt/az coordinates through a TCP socket but I'm not sure how I would connect (and if it's possible) the mount to the raspberry pi or the opposite way.
Here's a video of the current software I'm working on:
I've seen people control mounts like the Celestron nexstar ones but it would be ideal to make the small and light weight AZ GTi perform the same job. If you have any experience with the AZ GTi mount and raspberry pi I would highly appreciate your advice:)
Thank you in advance!
I am new in astronomy and got my SkyWatcher Star Discovery 150Pi WiFi AZ GoTo, however I am experiencing one big problem. When I try to align my telescope using SynScan Pro app on laptop or smartphone the telescope always points wrong direction. I do not have hand controller.
I set telescope north using compass, enter latitude and longitude, but when try to align 1 star or 2 stars, telescope spins way, way off. When the star is in the South East it shows north east, or sometimes points absolutely wrong direction. When it is set on the north and object is 98 degrees east it goes some 30 degrees. It also points lower or higher.
I am totally lost.
I use 8 AA batteries.
What I do wrong?
How to fix this?
My attempts at SID monitoring have been languishing for a while due to radio problems, though I have been getting to grips with Arduino and even had a go at building my own.
In order to move things along I went to the UKRAA stand at Astrofest and bought the VLF radio kit, their signal generator and the 15V power supply.
Last weekend I soldered the board. It wasn’t too difficult following their instructions which are pretty clear. The only fiddly bit was soldering on an SMD capacitor but they also give you a through-hole one as well. Initial tests suggest it is working but I will have a better idea when it is all connected.
This weekend I have been working on the housing and hopefully tomorrow get the leads soldered. From left to right will be led power, 15V in, 15V out, antenna in, then analogue -ve and +ve (can be 5V or 2.5V).
I am building it as-is, so the first iteration will have the radio running off mains power and in turn the radio will power the Arduino. That seems a bit backwards but I would just like to get logging data. For the time being it will write to an SD card, but the Arduino MKR 1010 looks rather good and comes with WiFi and encryption.
That though, is a long way off..! Anyway, this shows progress so far.
Hi - I'm a relative newcomer to telescopes with goto - still trying to figure them out.
I have a problem with Goto on the 8SE.
Alignment usually works (Not always, but usually)
I believe my set up is correct - time and date, DST and UTC (It's currently BST in the UK)
I usually use 2-star alignment (Currently, most convenient for me are Sirius and Procyon)
Alignment usually succeeds, but goto just doesn't. The scope slews away, sometimes even to a completely different part of the sky from the selected object (I'm familiar enough with
the sky to be able to identify several bright stars without assistance)
Bizarrely, this happens even if the goto object is one of the alignment stars - how could it possibly not be able to find a star when you've explicitly told it where it is?
I've read that goto sometimes doesn't work well on battery power, so I've aquired a mains adapter. No change.
I haven't yet updated the handset firmware (I'm waiting for a serial-usb adapter.)
Any help would be appreciated.
I'm looking to get a reasonably portable astrophotography set-up, using a 60-100mm refractor, with a suitable goto mount. I spotted the Explore Scientifice exos2-gt with pmc-eight goto system, which looks like quite an elegant solution, and wondered if anybody in the forum owns this mount, and what they think of it's performance & usability?