Aberrator Bugpages

On this page you will be informed about the latest progress in the development of Aberrator features.

Update 21 november 2000

Bugs in version 2.5
1. The airy-discs were underestimated in size. Especially in planetary/double star images this could lead to underestimation of the errors. (solved in  release 2.53)

2. Lower PSF-values seem to be too low compared to theory. Peak values were not influence by this error. (solved in release 2.53)

Version 2.5 (1 november 2000)

This version is recently released , there are no new features but several changes are visible.

Most noticeble changes:
Saturation(link)
The current versions of the Aberrator all have problems with saturation (overcoloured) in the planetary aberrations. A lot of time (great help from Derek Wong and Nils Olof Carlin) has been spend in tweaking this problem out of our way. The new version will be saturation-free.

Contrast/Brightness
Computer-monitors do not depict light-intensity in a linear manner. Therefore a special gamma relation was added to make the response of the light-curves more realistic. In the about page of the Aberrator program a special image can be seen that is usefull in tuning your computer screen to show as many grades of grey as possible.

PSF
The PSF’s were calculated in a not appropriate way, scaling was not done perfect. The new PSF’s will be according to theory. Still notice that at high-apertures the PSF functions will be undersampled due to the small airy-discs.

Minor changes:
-The aperture settings were not consistent between the mm and inch settings, now you can set your aperture from 2” to 25 “ or 50mm to 650 mm.

-zooming out will not lead to artifacts at higher zoom-out values.

-you can change the separation in the double star page to the Dawes criterion