Celestia Forums

Hi again.
If I have proper motion for M31 in galactic coordinates (?l, ?b) = (38 ± 16 ?as/yr^-1, -49 ± 5 ?as/yr^-1), how do I convert it to equatorial (??, ??)? Is it the same as converting coordinates?
Thanks in advance.

Yeah, but what about them being in microarcseconds? Do I convert them to degrees first?

Hi (: I'm in desperate need of some help with some calculations. 1st, I need to convert ecliptic coordinates (-39 +/- 9 microas/yr toward the East and 31 +/- 8 microas/yr toward the North) to equatorial. 2nd, I need rotation matrices for the galactic plane in relation to the equatorial, and for the ...

Nope, doesn't react to colors. I could try and hack this feature into Celestia, but certainly not in time.

Sorry, I meant to say using something akin to those images. Can there be a custom template for every galaxy, and do the templates support differently coloured sprites? If so, those templates may be exactly what I need.

Thanks a lot! (: I've had a look at the celx scripting documentation ( here ; is that the most recent version?). By "fancier", I meant maybe using some of those brightly coloured composite images. By the way, could I display a fixed-size sprite instead of an object when the distance to the...

Well, I'm quite familiar with programming. What I'm thinking of making is creating an entirely new universe which contains only the galaxies of the Local Group, maybe with some fancier models than the ones currently present, and the ability to travel from galaxy to galaxy, and also to observe all ga...

Well, what are the pros and cons of either? I have some programming experience so if you could give me a few pointers...

Hi there. I'm a student, and my local observatory has charged me with making a computer model of the local cluster of galaxies. I've decided on using Celestia to facilitate this. However, I've encountered a couple of issues: most importantly, even the limiting magnitude at maximum, galaxies appear a...