small fov does not solve

[Axel Thomas]

Hi,
I have been trying to solve an image of the trapezium in Orion with very small fov (10' x 14', see image). I tried a number of alignment options using V05, V50 and D80 data bases but could not solve the image. Any ideas how to solve such an image?

cs Axel

[han.k]

You could try with the setting triples and D80. Else manually with specifiying two star positions. But it is easier to uploaded to nova.astrometry,net and download the solution as new-image.fits. Here is the link:

https://nova.astrometry.net/new_fits_file/12342582

[Axel Thomas]

Thanks for the link but I have not been very successful so far:
the image from your link throws an error and terminates ASTAP:
20:46:09 █ █ █ █ █ █ Warning: Image not calibrated with a flat field (keyword CALSTAT). Absolute photometric accuracy will be lower. Calibrate images first using "calibrate only" option in stack menu. █ █ █ █ █ █

Setting triples and D80 did not work

Solving manually did not work either:
9:06 23 stars, 14 quads selected in the image. 16 database stars, 10 database quads required for the 0.26° square search window. Step size 0.13°.
22:45:10 No solution found! :(

Any ideas?
cs Axel