Celestia Forums

If you want only to "play" with one parameteres and see the efect on others, use the excel file in :

http://usuarios.lycos.es/darktemplars/Index.html

It seems that I must rebuild my black hole, I will try in the next weeks

I am the creator of the black.hole add-on. Iit seems that works fine for me in the last Celestia release, and I have no problems with transparency, I see it the same way that ever, maybe it can be related to the graphic card used ?? I use a Gefirce Fx 5200 128 Mbs maybe in radeon doesnt works well....

I started long ago this project, but I don't have time now to continue, all my works had been made in excel and it is not finish already but you visit : http://usuarios.lycos.es/darktemplars/Index.html I have the rest of formulae to create REAL random planetary systems, if you want please contact me...

I am the creator of the black-hole add-on and I am very interested in teh possibility to create worm-holes, I will think in the next days how can be this implemented with the actual Celestia code, if anybody has ideas please talk directly to me in msn.

The black hole add on i done long time ago is in my site, you can download it from them and see at the pictures


http://usuarios.lycos.es/darktemplars/Index.html

Excel can be used to make scc files using a curious method that i will explain in other post;I remember you that this spreadshets is only the begining, I have much more advenced it now but have a few problems with multiple orbits in binary systems.

I have checked my page a minute ago and it is there, the files can be downloadand the images can be seen, if you still have thsi same problem please told me, if persist and you are interested I will send you the files http://usuarios.lycos.es/darktemplars/Screenshots/stars2.jpg http://usuarios.lycos...

You can use my excel table to generate random ( but real an accurate ) stars for the planetary systems Here you will finf it in the astrotech section: http://usuarios.lycos.es/darktemplars/Index.html The project is much more advanced and now is capble to generate planets with mass, radius, axistilt,...

Look at :

http://usuarios.lycos.es/darktemplars/Index.html

There is my black hole model, I had no time to update the model and add more realistic but I will try in the future

There are varius super red giants of that kind of size 100-500 Rs like Antares, Betelgeuse... but its density is extrematly low more or less 0.00000001 g/cm3 so they never can have such as mass. The most massive stars allowed is 100 Ms, more mass and the star is unstable; so 100 Ms is the upper limi...

I am not an astrophysics student, but I like very much astrophysics. I am Naval Architect and Oceanic engineer also renewable energy systems technician. I had learned lot of physics in my years studying so it is easy to apply the same knowledge to astrophysics... The physic involved to build ships a...

The last question is the first one I must answer Is it correct for the "star - planet" system (Sun - Earth)? If yes, what forecast for the future? Yes it is correct for all kind of systems in fact mercury is tidaly locked to the sun but its high excentricity makes a complex tidal lock with a resonan...

I hope this will enlighten the common mistakes about orbits evolution. First one: the energy is ever constant but this means the energy of all COMPLETE system, in the case of a moon and planet It means: Moon Rotational E. + Planet Rot. E. + Moon-Planet system rotation E. = Constant (E. = Energy) If ...

The real fact is that the moon distance is getting bigger ( I remeber 3 cms/year) this is because the conservation of the angular momentum and the tides that slow down the earth rotation. ( the day had only 18 hours 900 million years ago and the moon was much more near of the earth). Eventually the ...

Well I hope this will answer all your questions about the Star Generator. First One the Star generator is only a firts step to make real planetary systems for Celestia. It could be used fow make new star but the problem is about the coordinates. There is not an "easy" way to generate random galactic...

At last the final Star System generator is completed, with it you can be able to generate random star and double close star systems. It had a lot of bugs (especially with the cooling if brown and white dwarves) :? You can use this one to get useful information about the stars in Celestia, specially ...

Thanks for all the suggestions: I must comment some things. First of all, I am not a 3D model or texture-maker expert my knowledge is quite limited ( these are the first 3d model and texture I have ever make in all my life ) but my physics and astronomy knowledge are much better. Second one abut the...

The empirical system is not the better one and Celestia have a lighter temperature desviation, about 2 C in earth and maybe more in other planets. If you want to make a real calculus I suggest you that try to use real formulaes not empirical ones. Your formulae is mainly right but to be congruent yo...

**** Luminosity of a star**** L = Area x sigma x T^4 Where: L = total luminosity (in Watts) A = total area of star = 4 x pi x R^2 (in m^2) sigma = Stefan-Boltzmann constant = 5.6705 x 10^-8 W/(m^2 x K^4) T = surfaced Temperature in Kelvins L / Mabs relation: L/Lsun = 2.512^(4.68-Mabs- B.C.) L = tota...