Plate Solve 2 failing to solve

Sequence Generator
1

For some reason I cant get Plate Solve 2 to solve near the cresent nebula - NGC6888 - If I slew over to Vega it solves fine and I normally dont have any issues with plate solving. I uploaded the problem image to the online Astrometry service and below is the annotated result, as you can see NGC6888 is pretty much centre, so why cant Plate Solve 2 solve it? It does eventually fail over and use the local Astrometry solution but thats very slow and time consuming…

Here is the image that can be solved: Dropbox - CanSolve-Vega.fit - Simplify your life
And here is the one that cant be solved: Dropbox - CantSolve-NGC6888.fit - Simplify your life

CantSolve-AstrometryResult

2

That’s interesting. ASTAP solved your Crescent image in 5 seconds but PlateSolve 2 will not, at least on my machine. You might give ASTAP a try as you will never look back.

3

Ok, will set it up this morning and see how it goes!

4

Thats it installed, 0.7s to solve that image! Wonder why Plate Solve 2 wont do it?

5

Have you tried to reduce your exposure time for this section of the sky? It’s been suggested elsewhere that too many stars may throw PS2 off.

6

Ah, never thought of that, will see how I get on with ASTAP as it seemed faster anyway

7

I replaced PS2 with ASTAP a few months ago for the same reason and never had any problems again.