Trouble with ImageSolver

[mpusatera]

I've had this problem a few times.  My image seems not to solve in ImageSolver.  It works fine on Astrometry, but if i plug in the coordinates I get nothing.  If I download the Astrometry fits image and use AnnotateImage, I often get the annotation in the wrong place (as if the image in mirrored).

Any ideas?

link to the image: https://flic.kr/p/Mqzvvq

link to astrometry image: http://nova.astrometry.net/user_images/1295930#annotated

Thanks!

Mike

[Andres.Pozo]

Hi Mike,

I have solved your image using the attached parameters. There is not anything clever in these parameters, I have only chosen the coordinates of NGC6992, a resolution of 2" and I have activated the noise reduction.

Code: [Select]

Image Plate Solver script version 4.2
===============================================================================
Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):
           +0.000566029       +1.45973e-005            -0.96623
          -1.45768e-005        +0.000566223           -0.733793
                     +0                  +0                  +1
Projection origin.. [1672.500372 1339.000934]pix -> [RA:+20 54 19.91 Dec:+31 27 58.34]
Resolution ........ 2.039 arcsec/pix
Rotation .......... -178.534 deg
Focal ............. 748.68 mm
Pixel size ........ 7.40 um
Field of view ..... 1d 53' 39.6" x 1d 30' 59.7"
Image center ...... RA: 20 54 19.912  Dec: +31 27 58.34
Image bounds:
   top-left ....... RA: 20 49 50.186  Dec: +30 43 39.40
   top-right ...... RA: 20 58 38.595  Dec: +30 40 45.31
   bottom-left .... RA: 20 49 56.870  Dec: +32 14 38.32
   bottom-right ... RA: 20 58 53.898  Dec: +32 11 41.38
Andrés.

[mpusatera]

Interesting.  When I downloaded the file from Flickr it worked with your settings, even though the pixel size is wrong. But using the same settings you have on there with my original file in PI it won't solve.  Odd.