Thanks Sean, as far as I can see Sitech does not explicitly call platesolve3, it must do it via a dll.
So I went poking around and tried this thread on Cloudy Nights
N.I.N.A Platesolve 3 Download? - Cloudy Nights
https://www.cloudynights.com › topic › 842082-nina-p...
19 Sept 2022 — I am trying to setup
N.I.N.A with
Platesolve 3 using the
download link for
PlateSolve 3, but it fails at the end of the
download.
Not a promising start! But I went there to find
I am trying to setup N.I.N.A with Platesolve 3 using the download link for PlateSolve 3, but it fails at the end of the download.
https://nighttime-im...ng/#platesolve3
clicking on the link gives
PlateSolve3#
Author: PlaneWave Instruments (Dave Rowe) URL:
PlateSolve 3.80 5GB
Nina has kindly been selected to add the new PlateSolve3 program to its arsenal of platesolvers, courtesy of Dave Rowe. PlateSolve3 is a standalone executable which has been improved to work with longer focal lengths and smaller FOVs with fewer stars. This download has the necessary catalogues already added. Just unpack it into a directory of your choosing and point to it in Nina platesolving options.
You need to start the executable once standalone and select File - Configure directory.
Set the GaiaDr2 location to the 'UD Catalog' directory in the unpacked PlateSolve3.80 directory.
Then set the UCAC4 location to the 'Kepler' directory in the same unpacked directory. You will also need to set your location in View - Parameters
I had more luck ,clicking the last link above did down load the 5.2 gig required.
I followed the installation instruction and all seems to be well.
The data structure it creates is the same as the Sitech data structure,. One day when I am brave I will put the Sitech directory names in the instruction fields and see if it still works.
If so I can clear up a lot of disk space.
Chris