Celestia Forums

[quote="MKruer"]Exactly! Its the "roughly" part that is causing all the problems. The ?€?Roughly?€

Sigh. Would be nice if Symaski for once could actually SAY that (even in french), rather than do his standard equivalent of quoting and armwaving and smileymaking and forcing the reader to guess what he could be going on about this time. As it is, I went to the site and the java window didn't work f...

And? What's so special about this?

I dunno... if it's quasar-like (or even seyfert-like, as in an active core), the radiation from that might just frazzle any habitable world in the galaxy enough to prevent life from forming. Unless perhaps they're right on the rim... And don't forget the lower average metallicity of the stars back t...

That's all well and good, but will this info be included in the default version of Celestia? I'm not really interested in alternative versions of the program (though I'm not knocking your version at all). I know Chris has other things to do, but I've not heard a peep about what he's currently workin...

What does a galaxy nine billion lightyears away look like? ;) Seriously. I'm guessing our milky way would have looked like the distant galaxies we see today. Maybe even like a quasar, with a young, growing, voracious, massive black hole devouring huge quantities of leftover gas and dust and stars an...

Has there been any recent development of Celestia's core at all (i.e. rendering engine, etc)? I'm not really interested in new/updated textures and I'm certainly not interested in fictional addons, but since the addition of multiple light source support last year it seems like it's been all quiet on...

The more and more I look at the Hertzsprung-Russell Diagram, the more and more I am convinced that it need to be radically modified or a new superior system created. What I also find particularly annoying is that for different star masses, i.e. Giants (III), Supergiants (I), have different temperat...

I suppose one alternative would be to just not have much detail in the top and bottom few pixel rows of the texture map. The "pinch effect" is noticeable when you have lots of variation at those areas - if you just had a smooth region (like say, a uniformly white icecap) then it wouldn't be so visib...

Chris, Just out of Curiosity, would you agree that Temperature, and Radius are, or should be the definitive characteristics defining all stars? Temperature is obvious for the spectral type. The reason why I say radius is that the Radius is the defining characteristic for the Size. I think the prima...

Shouldn't this be on the Add-ons board?

I've already pointed out the problems with having HF and Fluorine-based worlds. It doesn't matter what generation the star is, Fluorine is still a very rare element - too rare to be present in large enough amounts, and too reactive to exist on its own.

The lower limit for a brown dwarf (ie something that started fusing Deuterium at one point but isn't necessarily anymore) is about 13 Jupiter masses. L dwarfs are the more massive/younger brown dwarfs. They're massive enough to have started fusing deuterium in their cores (about 35-70 Jupiter masses...

Some of this may be a bit technical, but the links below should give you a bit more info on what's going on at the M/L/T end of the spectrum: http://www-int.stsci.edu/~inr/ldwarf1.html http://www.iap.fr/SitesHeberges/com45uai/rapport99/node3.html Remember, these are spectral types - the classificati...

If I am to teach these properly, could someone please help me understand the answers to four questions: 1. Although it is not clear to me, can I presume that a "C" star is the same thing as an "N" or "L" star? That is, does a class "C" star glow only dully red and have a spectral color class of N o...

Until I understand, I will continue to have my doubts (which I think you will concede is the proper scientific attitude). Having doubts when you know as much about the subject as an author is one thing. But having doubts when you don't know much about the subject is just being stubborn. Lots of peo...

Reminder: If you think a posting is inappropriate, send a PrivateMessage to a moderator (myself or Chris). This causes an e'mailed notice to be sent, so it's more likely to be taken care of quickly. Adding your own comments to a posting like this one is unlikely to have a quick result. Most other f...

You should be able to comprehend it fairly quickly if you tried, Ganymede, since you obviously have a very large mind (though perhaps not a very open one). My mind is quite open thank you very much - you just haven't been explaining yourself clearly. Like I said, it's better to read something like ...

I don't even understand what your issue is with dimensions and why you're "not concerned with them". What do you want here? You claim that scientists should be looking into SOMETHING to figure out the "mysteries of the universe" but when it's pointed out to you that this is what they're doing, you s...

.. and space time is the balloon's surface . Could you please mark the ' time '-coordinate on the balloon's surface ;-) or go back to read once more Walton's carefully phrased balloon analogy. OK, space then. Whatever. Though I was rather under the impression that space and time couldn't really be ...

Um, physicists ARE seriously looking into other dimensions to "solve the mysteries of the universe" - that's what string theory and membrane theory is all about. For example, it seems that the physical laws of this universe are determined largely by how the other 7 (at least) dimensions that are all...