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 Star quality: All star/emissions/light related foolishness goes here.

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Deathbite42
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Thu Aug 30, 2012 9:33 pm

A chart's better than an essay.
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Calfeggs
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Thu Aug 30, 2012 9:37 pm

Deathbite42 wrote:
A chart's better than an essay.


I'll consider, I am not too good with complicated charts like that.
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~sciocont
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Thu Aug 30, 2012 10:31 pm

We already have a table of this somewhere around here...

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Deathbite42
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Fri Aug 31, 2012 9:06 am

Table of what?
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Seregon
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Fri Aug 31, 2012 9:39 am

~sciocont wrote:
We already have a table of this somewhere around here...

It's in the OP to this thread (the first spoiler).
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Mysterious_Calligrapher
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Fri Aug 31, 2012 10:06 am

I was thinking that we could hopefully designate someone to spend time reading about non main sequence stars: brown dwarfs, red dwarfs, and all the other non main-sequence stars on this table:


I've been having a look, but it will go a lot quicker if multiple people research and understand it.

*Edit: When did we stop being able to insert pictures? Link to the table is here.

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Daniferrito
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Wed Oct 10, 2012 7:26 pm

As i asked somewhere else (Here), how is the physics engine going to be handled? I would understaund that for the galaxy it would be spore-like, with solar systems pinned down in space and unable to move. But for solar systems at least, it should be calculated, as the code is not dificult nor it is processor intensive. As such, any possible configuration that the user is able to find should be alowed by the system. Another problem is if the distance from the planet makes the planet able to live in.
Spoiler:
 
Maybe a simple editor option that places a planet somewhere on the habitable radius of the star, on a perfecctly circular orbit (or eliptic) using kepler laws, and a more complicated editor interface that alows you to place celestial corpses anywhere you want with the properties you want. EDIT - Probably giving the user te option to run a simulation just to check how will its solar system be after some million years (without rendering anything in between, or it would take ages), or even easyer, a phisical operation to check wether the planet will eventually escape from its orbit (Mechanic energy = Cinetic energy + Potential energy < 0)

Going back on topic, i think the only data to be stored about a star should be mass and radius. With that, you can extrapolate the star type, even being able to program black holes as stars, as they fit in the size to mass correlation of stars. The only other fact that you might need to store for full star symulation would be its age, as stars change when they get old. This can make a diference because as stated before, big stars have shorter lifespans.
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Thu Oct 11, 2012 6:33 pm

If yo look at the "planetay climate maths" thread, we've already begun work on some of this. I definitely agree about storing only the basics of the star. The problems I can see with dynamic systems is that players might get a little angry when their planets are yanked out of orbit or smashed together, and that irregular and elliptical orbits will further complicate the light intensity equations that we have.

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Daniferrito
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Sat Oct 13, 2012 10:20 pm

~sciocont wrote:
If yo look at the "planetay climate maths" thread, we've already begun work on some of this. I definitely agree about storing only the basics of the star. The problems I can see with dynamic systems is that players might get a little angry when their planets are yanked out of orbit or smashed together, and that irregular and elliptical orbits will further complicate the light intensity equations that we have.

To start off, i supose the equations applicate to the Population dynamics thread, as the equations from your thread need to be used somewhere.

First, the equations there are not really complicated. They are usefull as long as you have a planet similar to earth, rotating in a perfect circle around a single star similar to the sun.

If you want to have the seasons (whatever they are, they are not necesarly spring, summer, autumn and winter, as even on earth there are more or less seasons depending on zone (a wikipedia article about seasons was here, but i cannot post it, just search season on wikipedia)) afecting the evolution of the population, and also auto-evo, you can just calculate these variables every time you need them, it doesent take the computer much time to do so, and alows you to have really open planet configurations.

Spoiler:
 

Second, unless two corpses colide (which is unlikely given how big is space) any orbit between the minimum orbit speed and the scape speed (look at spoiler) is stable as long as it is orbiting around a big enough mass (any star or group of them). For a planet rotating around a single star in a binary star system, i'm not so sure, but given the right starting variables it's probable that it is possible.

Spoiler:
 


After all that post, i leave you an apologize for all the probable mistakes on my writing. I also leave an Android aplication that i made simulating gravity systems (it doesent allow me to post it, you'll have to wait). It is in spanish at the moment, i can translate it if you dont understaund it just pm me about it. Every 50ms it starts a cycle. Each cycle calculates 10000 calculations, each being of 1 second, so it runs at 200000 times speed with a 1 second precission. Most of the processing power actually goes to drawing the planets, not the calculations.
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Sun Oct 14, 2012 9:48 am

Light levels and heat levels allow us to set up discrete biomes on a planet- that's why we need them. So long as we can keep planets in stable, nonintersecting orbits, I'm fine with putting them anywhere. If we can't simulate planets within binary systems well, we might as well ignore them and focus on single star systems.

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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Sun Oct 14, 2012 11:50 am

Oh, yes, biomes, i didnt remember that. In order to have complex gravitation systems we would need some kind of continous biomes, i mean, not x amount of disctinct biomes, but a graduation of them. Just as stars, not only a closed table with 6 kinds of stars, but stars defined by size and mass.
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~sciocont
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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Sun Oct 14, 2012 12:05 pm

Daniferrito wrote:
Oh, yes, biomes, i didnt remember that. In order to have complex gravitation systems we would need some kind of continous biomes, i mean, not x amount of disctinct biomes, but a graduation of them. Just as stars, not only a closed table with 6 kinds of stars, but stars defined by size and mass.
We already have it figured out.

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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Mon Oct 15, 2012 4:43 pm

~sciocont wrote:
We already have it figured out.
I supose they are alredy decided and more or less closed (althrough i might have missed a newer post saying otherwise) but we can still work around that. For example, do a test run of the planet we want to decide the biomes in and record how much energy it is recieving at each time. Then, do the needed calculations, like max and min energy recieved, difference between them and so on, compare them with a your table of posible biomes and you have it, biomes decided. this way will also take into account the diference between day and night as in slow rotating planets, this could even mean seasons driven by slow changing sunlight. Anyway, it is just a sugestion.

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PostSubject: Re: Star quality: All star/emissions/light related foolishness goes here.   Today at 5:35 am

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