Celestia Forums

16510 Ipipipip is a star system which is a crash site place in one of my Air Crash Investigation fanfictions. The story originated in February 2020, and I've told it over at a house party to people. One of my friends actually helped me pick atmospheric temperature and pressure for the crash site pla...

Post-AGB white dwarf System, 1st version of the addon. Lamkomp planet has a backstory - it was damaged slightly in the crash of V389 Cordium Serpentis Flight 2017, which is from my fictional universe. The AltSurface for that is presented in the addon. I decided to give the white dwarf a generic astr...

I came up with an idea for my universe where people actually live on stars, and some of the biggest stars have six-digit radii in terms of the Sun. Chemical elements go all the way up to Z = 20'000 (after that there is just physical impracticality), and there exists a concept of "biological vis...

Thanks.

Speaking of "your mom" it was just an internal edit within the Size Comparison addon, it wasn't really an addon of my own.

I never intended it to be publicly shown, but since talks went about the "biggest star" I decided it would make a fun addition.

Woah. Imagination is an extremely fluid thing, and computers can't keep up fast with it. Speaking of the stars, I wonder if it is possible to pull out the stars.dat file or at least somehow remove all the stars in it? This way I can center the universe on my own galaxies and circumvent bad rendering...

I checked the luminosity correction, and it gave me a factor of 7.2 times (-2.15f in this case becasue type is just plain M4). static float bmag_correctionM[3][10] = { // Lum class V (main sequence) { -1.38f, -1.62f, -1.89f, -2.15f, -2.38f, -2.73f, -3.21f, -3.46f, -4.10f, -4.40f, ... }; About what i...

Thank you.

And speaking of the largest star... I got this one.

@GurrenLagann I did this by total accident. Originally stars were meant to be within Sextans A's addon style, I expected a -17 magnitude to correspond to that star with 86'000 R_sun, but instead Celestia did this. If the star is caltculated by ratio of T_star/T_sun to the 4, which is about 7, the ra...

I have a star that symbolizes America in my fictional universe, and it has an absolute magnitude of -17.76, which corresponds to luminosity of around 1 billion x Sun. When I automatically put it into Celestia, using the temperature of 3500 K and the magnitude, it gives a radius of 220'000 times that...

Hello,

I apologize for long delay and not replying. I simply had to prepare for standardized testing that was important for entering college since I will be entering astronomy department, which is my passion so yeah. Now that school is over I will read into this.

To Janus: (idk how to tag people here and idk if this function even exists)

If I can do even a brute force version, would you mind testing it with your auto generated data to see how it looks?

I wouldn't mind this. Here is the addon and Python code:

So I made using Python random.uniform function a bunch of coordinates within a span of few hundred light years. The star on which it is centered is called Israel, and it is 370370370 light years away in the 1 GY build. I made 1000 red subgiants and 6000 yellow subgiants (radius 10'000'000 km). And a...

"If you are compiling your own then all you need to do is modify one line to implement the change. /src/celengine/stardb.cpp:47 constexpr const float STAR_OCTREE_ROOT_SIZE = 1000000000.0f;" That's how. Just find the line in the stardb.cpp and replace 1000000000 with 46000000000 However fo...

Yaaaaaaay I finally got to making this work!

Star at 45 billion ly. In my universe Israel is supposed to be at 370 Mly but eh just a test run.

Selden, the link is dead.