Recently Browsing 0 members
No registered users viewing this page.
By Alex the great
Hello everybody on this community, very happy I recently joined stargazers lounge.com
Last November I was able to modify my EQ5 mount via shoestring astronomy GPUSB (ST4 mount-USB laptop, my guiding camera is connected to the laptop by USB and PHD2 as guiding software) so I can autoguide it for long periods 6 minutes and more, I was really happy that this project was achieved and now I can get more details out of deep sky objects.
My question is how can I go GOTO with this set up, trying to find objects to image is really time demanding without GOTO, and my goal is to take advantage of time to get those photons.
I installed already ASCOM but I didn't connect with the USB connection (I think only work with serials cable)
Thanks in advance for your valuable comments
So I had a free day yesterday and decided to sort out my equipment and update my astro laptop software packages. I downloaded the latest Stellarium and managed to get it to sync with APT. I installed my Xmas present from my sweetheart (Optolong L-eNhance filter) how did she know it's what I wanted??? I recently installed the free trial version of Pixinsight on my main laptop so after watching a few YouTube videos decided to get some Dark and Bias frames to create some masters ready for my next session.
The weather was good yesterday and it stayed clear here as the sun started to set, so I set everything up outside hoping the apps were wrong and it wouldn't get cloudy. As it got darker I launched Sharpcap and completed a polar allingment, I used Stellarium and APT to slew to Vega and checked the focus was good. I then used Goto++ in APT to slew to NGC 7380 (Wizard Nebula), I set PHD2 off guiding and then I had my first issue; my laptop would not connect to my Lyn Astro dew controller so I manually set the temperature to quite low as it wasn't too damp at that time. So I started capturing 5 minute subs went inside and remoted into my astro laptop from my main laptop to check how it was going, all appeared good.
I recently set up a Rpi NAS at home so I'm able to transfer data to it and then to my other laptop on the go, so after I'd got a few subs I opened them in PI to check the quality, they looked ok to me. after about an hour PHD2 started binging a lost star warning so I went outside and the clouds were starting to cover the sky, I then took loads of flat frames using my main laptop, Notepad and 3 sheets of white paper and decided to take some more darks in case it cleared. I then set about trying to process the 9 subs I'd managed to capture with the 200 flat frames the master bias and dark frames I'd created earlier. Despite the lack of subs I'm quite pleased with the result, I have done a quick Histogram stretch, and the knowledge I have gained, I'm definately going to purchase PI when I can afford it.
So this morning I thought I'd sort out the issue with the connection to the Lynx Astro dew controller, you won't believe it, my Astro Laptop will not turn on, it's been playing up for a while I suspect the battery has died. So just when I thought I was getting on top of this frustrating hobby I get another spanner in the works. So do I gamble and order a new battery then discover it is the laptop that has failed, do I set up another old laptop I have and hope it will be ok, do I set up my Rpi3 with Indigo or do I buy a mini PC as I know my way around windows?
Anyway here's the calibrated stacked image as it is in PI with a quick stretch.
I have recently bought a Orion Starshoot Autoguider. I downloaded phd 2, eqmod and ascom stuff. After a small research I found out my mount (exos 2 gt) doesn't support computer acces without firmware upgrade and fancy cables but I have the st4 port so it shouldn't be a problem. In phd I choose camera as Starshoot Autoguider and mount On-Camera. Aux mount and AO are both none. My wiring is one cable to pc from camera and another to st4 port from camera. When I started looping I selected the star with no problem. I choosed the one star alignment option from my hand controller and after centering the Archturus in the middle of view I pressed ok and it was successfull. I started guiding and after a while I get the error: RA calibration failed star didn't move enough.
By Cosmic Geoff
After a number of poor results with planetary imaging, I am starting to wonder if the apparent poor seeing is caused by the warm air exhaust blowing out of the laptop. I have had the laptop positioned a few feet away from the telescope dewshield and blowing air in that direction. Aiming at Jupiter the dewshield etc is just a couple of feet higher than the laptop.
Next time I'll try to remember to put it on the other side of the telescope so it blows air away from it. But there are plenty of other things to think about while I am out there.
I connect my mount to PHD2 using ASCOM and most nights I have the error "Star did not move enough" as well as "Suspicious blah blah, axis may not be perpendicular". This does not happen when I connect the mount via ST4 cable. I read somewhere that I can do a Calibration Sanity Check in PHD2. I am however unable to find that function in the software. Is it some pop up feature or does it have a location in the settings/brain icon?
Any help will be highly appreciated.