Where better to start
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Where better to start
I think the best place to start for the standardisation would be Eos, given that it's the first planet.
Some of the details we have about Micras are:
Some of the details we have about Micras are:
The items in italic can be directly worked out from the other information.Semi-major axis - 236,364,635 km
Semi-minor axis - 236,271,299 km
Orbital circumference - 1,484,828,586 km
Orbital eccentricity - 0.028 100 000
Orbit period - 555.9996 days
Average orbital speed - 25.918 kms ^-1
Satellites - 1 (Tarsica)
Radius - 6892.465 km
Circumference - 43306.635 km
Land/Sea Ratio - 29.9%/70.1%
Mass - 7.0548 x 10^24 kg (1.181 Earth masses)
Density - 5132 kgm^-3
Surface gravity - 9.8955 ms^-2; (1.00906 g)
Escape Velocity - 11.685 kms^-1
Rotation Period - 28.0632346 h
Albedo - 0.290
Surface Temperature - 288 K
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Re: Where better to start
When I made the diagram of the solar system, I set the orbit period as 320 days, so is somewhere around that level fine?
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Re: Where better to start
Someone noticed it would be better for Micras' orbit period to be just under 365.25 days - The same as Earth's. We would not need calendar adjustments and stuff, as many nations are not using 556 day calendar already :s
Anyway, we should start with Eos - and we could just have Venus as a base for it. As Venus is a planet similar to Earth in its size and early atmosphere, so would be Eos - a rock planet covered in thick layer of clouds composed of various gases.
I was thinking about Pyros: should we make our Mars-resembling planet a little bit bigger so that it could maintain a thin atmosphere? Otherwise, as Pyros is even further from Athos than Mars is from Sun, it would be a very icy world. And do we have a consensus on what the orbits of Indigo/Momiji and Pyros are?
Anyway, we should start with Eos - and we could just have Venus as a base for it. As Venus is a planet similar to Earth in its size and early atmosphere, so would be Eos - a rock planet covered in thick layer of clouds composed of various gases.
I was thinking about Pyros: should we make our Mars-resembling planet a little bit bigger so that it could maintain a thin atmosphere? Otherwise, as Pyros is even further from Athos than Mars is from Sun, it would be a very icy world. And do we have a consensus on what the orbits of Indigo/Momiji and Pyros are?
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Re: Where better to start
I think the orbit period has actually been worked out from other information, so we can't just decide to change it without changing things that are already decided. In Mercury we use the 28 hour clock, but we just scale it so 1 Micras day = 1 Earth day
We'll get to the other planets later on
We'll get to the other planets later on
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Re: Where better to start
Well, that's OK if you scale it - you can still be using it, as duration of an hour is just a matter of convention.
Personally, I would be OK if the parameters of Micras' orbit were close to Earth's. It would save a lot of hassle with calculations - and micronations are usually not made by physicists (and even I, after Advanced Physics in school, don't want to solve the equations needed to launch a probe from position other than Earth's)
Personally, I would be OK if the parameters of Micras' orbit were close to Earth's. It would save a lot of hassle with calculations - and micronations are usually not made by physicists (and even I, after Advanced Physics in school, don't want to solve the equations needed to launch a probe from position other than Earth's)
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Re: Where better to start
The whole point of rocket science is that there's a lot of maths involved
I never wanted to go changing things that had already been worked out, it will take more than just saying the orbit is 365 days to change it, we have to change the circumference of the orbit. I'm sure we can ask someone to knock up a quick converter anyway?
I never wanted to go changing things that had already been worked out, it will take more than just saying the orbit is 365 days to change it, we have to change the circumference of the orbit. I'm sure we can ask someone to knock up a quick converter anyway?
Re: Where better to start
I'm not a physicist. But when I was running the MCS by myself for years, and the question popped up here and there, the convention became that Micras is in a mirror position to Earth - meaning orbit, sun radiation, age, etc, were nearly identical to Earth. It made things a lot easier for most people.
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Re: Where better to start
That's what I'm saying - I'm neitherRyan wrote:I'm not a physicist.
And we should validate this status quo by making it clear these calculations were not adopted by majority of nations here...Ryan wrote:But when I was running the MCS by myself for years, and the question popped up here and there, the convention became that Micras is in a mirror position to Earth - meaning orbit, sun radiation, age, etc, were nearly identical to Earth. It made things a lot easier for most people.
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Re: Where better to start
Looks as though I'm defeated on that one then. If someone can do some calculations to rework the Micras data, we'll get that updated on the wiki
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Re: Where better to start
But hey, the data someone already calculated might be used for Indigo/Momiji system (some of them) OR Pyros (nearly all).
Well, one could add/take a random amount from Earth's 149,600,000km orbit radius and recalculate the rest of the data needed.
Well, one could add/take a random amount from Earth's 149,600,000km orbit radius and recalculate the rest of the data needed.
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Re: Where better to start
If you open up a thread in Standardisation of Micras, we can get this one back on topic
If we're putting Micras onto a 365 day orbit, is somewhere around 220 reasonable for Eos?
If we're putting Micras onto a 365 day orbit, is somewhere around 220 reasonable for Eos?
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Re: Where better to start
http://en.wikipedia.org/wiki/Venus :
Seems legit.Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
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Re: Where better to start
So we just need a few calculations then, to work out some of the other details. We'll make it a more exact value than just 220, maybe 221.7 or something
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Re: Where better to start
The very first thing would be agreeing on the size of Atos. Is it identical to Earth Sun? If not - how large is it?
I would vote in favour of the first option, because it allows us to use some of Kepler's laws to build our system realistically.
I would vote in favour of the first option, because it allows us to use some of Kepler's laws to build our system realistically.
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Re: Where better to start
Can we use mv^2/r = gMm/(r^2)?