Author Topic: Star mass and system size  (Read 1959 times)

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Offline Col.Wardeth (OP)

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Star mass and system size
« on: February 05, 2017, 01:27:21 AM »
I've almost week of real time into play and stumbled upon half a dozen systems where some chunk of rock flies around a low mass star (M3V for example) at over 10x Pluto's orbits.  But shouldn't system size depend on a mass of the star? Yeah I know about Oort cloud and scatter disk objects, but these aren't modelled in game for Sol system so I presume they shouldn't be generated procedurally for other stars.  Besides it wouldn't be very fun gameplay-wise to include them (imagine the travel times) at least without working hyperdrive.  And it certainly not fun to manually designate them for geo survey when there's over 50 of them.
 

Offline 83athom

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Re: Star mass and system size
« Reply #1 on: February 05, 2017, 06:59:53 PM »
A star's gravity exerts its influence on stars lightyears away. Even a "low mass" star is able to capture objects at 10x the distance of Pluto.
Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.
 

Offline Col.Wardeth (OP)

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Re: Star mass and system size
« Reply #2 on: February 06, 2017, 07:26:30 AM »
Quote from: 83athom link=topic=9373. msg101015#msg101015 date=1486342793
A star's gravity exerts its influence on stars lightyears away.  Even a "low mass" star is able to capture objects at 10x the distance of Pluto.
Yeah, but what's the chance that such objects would stay there through the billions of years while other, more massive stars, are flying aroung?
 

Offline 83athom

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Re: Star mass and system size
« Reply #3 on: February 06, 2017, 07:52:42 AM »
Yeah, but what's the chance that such objects would stay there through the billions of years while other, more massive stars, are flying aroung?
Why does it specifically have to be there for billions of years beforehand and not achieving orbit a few decades before you discover it?
Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.
 

Offline Col.Wardeth (OP)

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Re: Star mass and system size
« Reply #4 on: February 06, 2017, 07:58:16 AM »
Quote from: 83athom link=topic=9373. msg101032#msg101032 date=1486389162
Why does it specifically have to be there for billions of years beforehand and not achieving orbit a few decades before you discover it?
Because its orbit is circular and orbits for newly aquired bodies are almost always higly-eccentric.
 

Offline 83athom

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Re: Star mass and system size
« Reply #5 on: February 07, 2017, 09:34:44 AM »
Because its orbit is circular and orbits for newly aquired bodies are almost always higly-eccentric.
I would point out that all bodies in our solar system have eccentric/elliptical orbits but is perfectly circular in the game, so I will. All bodies in our solar system have eccentric/elliptical orbits but they are perfectly circular in the game, except comets because reasons.
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Offline MarcAFK

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Re: Star mass and system size
« Reply #6 on: February 08, 2017, 06:57:06 AM »
This is only tangentially on topic, but since the Solar Helioscopic Observatory was launched almost 20 years ago it has discovered over 3000 comets, approximately one every 2.6 days, most of those are in a terminal death spiral, which is extremely eccentric and elliptical. Those who don't burn up generally won't come back for thousands of years, only a few hundred comets out of possibly trillions actually are known as periodic, ie their orbit is stable enough and they will return regularly.
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Offline 83athom

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Re: Star mass and system size
« Reply #7 on: February 08, 2017, 07:12:22 AM »
most of those are in a terminal death spiral, which is extremely eccentric and elliptical. Those who don't burn up generally won't come back for thousands of years, only a few hundred comets out of possibly trillions actually are known as periodic, ie their orbit is stable enough and they will return regularly.
Speaking of which, it would be cool if we have eccentric orbit planets that are on eventual death spirals into the sun.
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Offline MarcAFK

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Re: Star mass and system size
« Reply #8 on: February 08, 2017, 08:53:39 AM »
The problem with that is statistically there's a tiny chance at any time that a significantly large body is on such an orbit, since theres only a handful of large bodies and such an orbit will destroy that body fast.
Whereas with trilliions of comets a few hundred a year can be destroyed without making a dent in the population. Especially if theres large masses out in the oort cloud which are disintegrating very sliowly, continually making new comets.
" Why is this godforsaken hellhole worth dying for? "
". . .  We know nothing about them, their language, their history or what they look like.  But we can assume this.  They stand for everything we don't stand for.  Also they told me you guys look like dorks. "
"Stop exploding, you cowards.  "
 

Offline Col.Wardeth (OP)

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Re: Star mass and system size
« Reply #9 on: February 08, 2017, 09:12:16 AM »
Quote from: 83athom link=topic=9373. msg101080#msg101080 date=1486559542
Speaking of which, it would be cool if we have eccentric orbit planets that are on eventual death spirals into the sun.
Would certainly make a cool scenario for planet evacuation/astroengineering.
 

Offline Steve Walmsley

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Re: Star mass and system size
« Reply #10 on: February 08, 2017, 12:33:32 PM »
Speaking of which, it would be cool if we have eccentric orbit planets that are on eventual death spirals into the sun.

I could create a disaster scenario for that to happen to the Earth - wouldn't be very hard to do.
 
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Offline MarcAFK

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Re: Star mass and system size
« Reply #11 on: February 08, 2017, 11:30:17 PM »
It would be nice if designer mode allowed customization of system bodies, being able to set something like that would be cool. The old Nemesis campaigns could get a new lease on life if you could actually set earth to end up too close to the sun in 100 years, or maybe edit in a large star in an eliptical orbit which will get to close and fry the planet in a similar time scale.
How does aurora handle planet temperatures? Is there a hard coded base temperature thats set when the body is generated? You would need to periodically recalculate a bodies base temperature if it was either in a death spiral, or any time it's position or orbit was edited. Wouldn't be to hard to do and since theres no need to check every bodies base temp constantly iyt wouldn't have a significant impact on performance. Though maybe comets might need to have that kind of calculation for reasons.
" Why is this godforsaken hellhole worth dying for? "
". . .  We know nothing about them, their language, their history or what they look like.  But we can assume this.  They stand for everything we don't stand for.  Also they told me you guys look like dorks. "
"Stop exploding, you cowards.  "
 

Offline Garfunkel

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Re: Star mass and system size
« Reply #12 on: February 09, 2017, 10:22:55 AM »
I could create a disaster scenario for that to happen to the Earth - wouldn't be very hard to do.
Yes please!