CatalogStarGenerator

[ppistor]

Using CatalogStarGenerator v2.1.5, I generated two star fields with the same set of parameters, except for the observation data (one: 1900.01.01, the other: 2018.08.12). The resulting fields
do not differ. Is this a bug or a feature?
Peter.

[dld]

Hi Peter, maybe there aren't any stars with high enough proper motion within your field. How about trying the same for a starfield around Barnard's Star?

Sadly I'm away from PI to try by myself 

[Andres.Pozo]

Which catalog did you use? Not every catalog has proper motion data.

See this message for an example using Gaia DR2:
https://pixinsight.com/forum/index.php?topic=12447.msg76129#msg76129

[dld]

Well, for the default catalog (PPMXL) and for a 2 degree FOV centered at Barnard's Star, the script (apparently) works as expected!

[ppistor]

Here are some parameters used by the CatalogStarGenerator:
RA: 2h 29 39.59
DEC: 58°56 24.6
Image size: 3927x3584
Projection: Stereographic
Resolution: 48.7"/px

Obviously a wide field image. Therefore I used the Bright Star Catalog.

Peter.

[Andres.Pozo]

BrightStars Catalog has proper motion data but in wide field images the motion is usually too small to make a visible difference.

In any case, with the parameters that you are using I can see movement in a few stars between 1918 and 2018.