1100GTO will not power on. Main battery shows 12.76V and backup battery shows 12.5V. Keypad simply says "Astro-Physics Ver: 4.19.3" and will not proceed beyond that point. Reads drawing 0 amps and LED

Tonight, I was using a 16" RC at f/6.4 with a full frame sensor to watch the eclipse. I also had a 91mm scope riding parallel to provide a wider FOV. In the 16", I could see about 95% of the lunar dis

The weather has been appalling since I received my new AP1600. Wanted to at least make some progress and establish PC connection. Not wanting to setup mount in poor weather, can I power up the CTP4 co

Mr. Gralak, Some time ago I had changed the camera selection in Pempro (build 4732) from ASI1 to ASI2 for another issue, but afterwards neglected to change it back. Normally, ASI1 is a 6200mm (main) a

I have a TEC 140 refractor on a 1100GTO with encoders on a permanent pier. I ran a 378 point model, and am getting excellent guiding with SGP and PHD2; mostly +/- 0.25 pixels, but getting *very* oval

SGPro has the ability to set a park position based on the current position of the mount, then at the end of a sequence it tells the mount to park. I believe the way it sets the park position is to sen

I have been re-reading the APCC manual and came across a statement that has me wondering if I am doing ReCals correctly. I have a portable setup, and although I usually get pretty well aligned, it is

My AP1600 worked flawlessly the night before but next day it got stuck on thinking its in the northern hemisphere so slews were going towards the ground! I am using Sky X and Ascom driver for AP. It u

I have been trying to troubleshoot excessive slew warnings (over 50%) when building models in APPM. From observing the Dec coordinate values in APPC I believe it is the Dec axis. Here is what I have d

Last time at a dark site no one was around, so there were no AP's, cell tethers, etc. Often there are MANY with all the apple-this, and asiair-that. So I was surprised to see the CP4 had opened an acc

Hey Astro-Nuts, We have another new video to share with you! If you’re using PHD2 for guiding with an AP encoder mount (Mach2GTO, 1100GTO-AE or 1600GTO-AE), this is for you. This tutorial covers basic

Hi, This one would be for Ray / Dale I guess. For an unknown reason tonight I get a "Invalid location for APPM settings file" when inserting the Dec Arc Model in the NINA advance sequencer (Astro-Phys

Is there a PDF version of the PEMPro Help File available ? I can print pages from the on-line version, but the printing is not very well formatted. Mike

This is what happens when the weather forecast says it is going to be breezy overnight: https://www.astrobin.com/full/c2dyh3/C/ The original plan was to image NGC 5033 and NGC 5005 last weekend. Both

That's really great! Which software did you use to follow the satellite? Rolando

Hey AP'ers! Since we have been clouded in here in WA for a long time, I was picking through some old data on an imaging laptop of mine and came across 1.5 hours or M42 data I took from a relatively da

Does anyone know what the length and thread of the following set screw is: https://ap-gto.groups.io/g/main/photo/274817/3424920?p=Created%2C%2C%2C20%2C2%2C0%2C0 It's part of the Y cable. I lost it yea

I'm trying to identify what counterweight shaft stop I need to purchase as a replacement. It is on an AP900GTO from 2005. The shaft is 1.875 in diameter but the stop that is supposed to fit it does no

Just wondering I have a 1100GTO mount that I purchased back in September 2014 I was thinking maybe its time to re grease the worm gear are there any instructions somewhere that I could follow? Also I

I was able to find only one amateur image of this galaxy, which is quite strange considering its size (4 arcminutes) and brightness (mag 10.6). I would have expected that its location in Virgo would h