Last year I acquired an older AP1200 CP3 mount, and upgraded it with the V2 chip to V4.19.3 Yesterday with moderate seeing, I ran the PHD2 guiding assistant and found out that the mount has approximat

Well, not a total failure, but ⅔ of the points failed. Last night I tried to create a Dec Arc model with my TEC 140 on my Mach2; a full arc of M51. I'm at a loss as to why so many failures. I can load

So this is the second night I've tried the 2021 vintage Mach2. The first night, guiding was awful, but the RA axis was loose, a problem I fixed with help from A-P. Tonight, I'm seeing poor tracking (n

The clouds moved in so my imaging session here is pretty much over, The last session I imaged the Seagull Nebula thru holes in the clouds. Seeing was very good, but because of clouds I was able to get

I made a APPM model for my 1100GTO (nonAE) last week and ended up redoing the collimation on my 8"RC this afternoon. Just wondering if I need to redo my model? The scope has not been taken off the mou

After many years I am having to upgrade the observatory computer, it will have W10 pro on it. I have been using The Sky 6 with the tele API and AP driver to run the AP mounts. Does the Sky X work with

Good afternoon all. I know this has been discussed before but is AP interested in coming out with a portable mount say smaller than Mach1, feel there is an absolute need for a portable mount in the ma

I previously posted some questions about unguided imaging, or DEC arc modeling and finally had some chances to try it out at the Winter Star Party. I typically don't post images here, but after seeing

It is simple geometry, so the correlation is essentially perfect. But you are correct that it is not a simple multiple. -------------------------- The key assumption is that the sensor is a flat plane

Wonderful collection Roland! Proof of concept and execution! Amazing demonstrations of dynamic range capabilities achievable and available to Astro-imagers these days. 👍🏻 Pete

Hello AstroFolk, I had another clear night last night with good seeing, a bit hazy. Was able to image another wide galaxy field in Coma Berenices. I added this to the M100 image from last week to make

I got tired of trying to guess how many turns to twist the adjustment screws on my Octopi-Astro tilt adapter. So in our shop we added 4 digital dial indicators. Each one reads to 1 micron, but claims

A special nod goes out to the AP1100AE. I got about 50 hours of data on this, including 7 remote, and not one sub needed to be discarded due to eccentricity or trailing (a LOT of subs were discarded d

Question: for systems (1600CP4/1200CP3) if they are run by computer only, do I still need to change the time in the handpad or will the control systems get the right time from the computer? And, if I

Hello, my name is Fabien from France, 2 questions : - First : I tried to connect for the first time my AP900 GTO CP3 mount to my new (updated) AsiAir Plus box. The firmware version of my CP3 is also u

Dear All, due to personal reasons, I have decided to put up for sale my AP 155EDT f/9 -- the very best of all the very many 6" refractors that have passed through my hands (AP, TMB, Zeiss, Takahashi,

Hello fellow Astronuts One of the many things I did while "down south" is touring the 10 (and growing) roofs at Obstech. I was struck my how many Astro-Physics mounts there are there. Unofficially I a

I imaged the Leo Triplet using FLI 16803 on a TEC180FL (1134mm FL with reducer-corrector) sitting atop my 1100 with AE. The pixel scale is 1.66 arc-sec/pixel The PHD2 RMS is bad at 4 to 4.8ish RMS. On

Hi all If you have any ideas ??? very strange My setup AP155/ Mach2 Regards, Alain

Image from last night using my AP900GTO mount. Dwarf planet Ceres passes in front of spiral galaxy M100 on the night of March 26-27. Ceres is about 13.3 light-minutes away from Earth while M100 is abo