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Stars! Habitability Range Chart
When trying to exchange information with other players about planets
in your/their vicinity, it's helpful to be able to get a feel for
where the planet's going to sit as far as habitability for your race,
or for theirs. I jotted down some figures on how to translate values
in the display to "relative difference" figures. This allows you to
figure just how far you would have to terraform a particular planet to
either make it perfect, or at least make it habitable :)
There are a total of 101 points in each of the three spectra involved.
This allows for a "center point", plus 50 points to either side.
Temp and Radiation are pretty straight forward as far as translations
go, but gravity was a little tricky until I thought about it for a few
minutes. The formula for Gravity moving UP from the center point is:
Move up in units of 0.04 G for the first 25 points, then move up in
units of 0.24 G for the remaining 25 points. In order to get the
values for the points BELOW center (centerline is 1.00 G), you divide
the number 1 by the equivalent upper point. So ten points above
center would be 1.40 G, and ten points below center is then shown as
(1/1.40) = 0.71 G.
Temp moves in units of 4 degrees C per point, from -200 C to 200 C.
Radiation is the simplest, moving in units of 1, ranging from 0 to
100.
In order to keep the gravity units straight, I sketched out a little
chart, showing the values of all three based off of "point position".
I'm including it here, in case anyone else wants to use it.
This can give you a feel for how close a planet is to your range, when
you know only the existing values, and haven't scanned the planet
yourself.
What I'd *REALLY* like is a way to translate these relative offsets,
along with the racial ranges, into the true percentage value of a
planet. Is there anyone out there ambitious enough to work out the
formula? Or perhaps, if we all plead with Jeff & Jeff, the'd just
TELL US what the formula is....
And the formula for how to compute the Advantage point costs of the
different ranges would be great, too.... ;-)
Use the "Radiation" column as the index column, if you like.
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Stars v2.0a Habitability Range Chart
g C mR
Grav-Temp-Rad
0.12 -200 0
0.12 -196 1
0.13 -192 2
0.13 -188 3
0.14 -184 4
0.14 -180 5
0.15 -176 6
0.15 -172 7
0.16 -168 8
0.17 -164 9
0.17 -160 10
0.18 -156 11
0.19 -152 12
0.20 -148 13
0.21 -144 14
0.22 -140 15
0.24 -136 16
0.25 -132 17
0.27 -128 18
When trying to exchange information with other players about planets
in your/their vicinity, it's helpful to be able to get a feel for
where the planet's going to sit as far as habitability for your race,
or for theirs. I jotted down some figures on how to translate values
in the display to "relative difference" figures. This allows you to
figure just how far you would have to terraform a particular planet to
either make it perfect, or at least make it habitable :)
There are a total of 101 points in each of the three spectra involved.
This allows for a "center point", plus 50 points to either side.
Temp and Radiation are pretty straight forward as far as translations
go, but gravity was a little tricky until I thought about it for a few
minutes. The formula for Gravity moving UP from the center point is:
Move up in units of 0.04 G for the first 25 points, then move up in
units of 0.24 G for the remaining 25 points. In order to get the
values for the points BELOW center (centerline is 1.00 G), you divide
the number 1 by the equivalent upper point. So ten points above
center would be 1.40 G, and ten points below center is then shown as
(1/1.40) = 0.71 G.
Temp moves in units of 4 degrees C per point, from -200 C to 200 C.
Radiation is the simplest, moving in units of 1, ranging from 0 to
100.
In order to keep the gravity units straight, I sketched out a little
chart, showing the values of all three based off of "point position".
I'm including it here, in case anyone else wants to use it.
This can give you a feel for how close a planet is to your range, when
you know only the existing values, and haven't scanned the planet
yourself.
What I'd *REALLY* like is a way to translate these relative offsets,
along with the racial ranges, into the true percentage value of a
planet. Is there anyone out there ambitious enough to work out the
formula? Or perhaps, if we all plead with Jeff & Jeff, the'd just
TELL US what the formula is....
And the formula for how to compute the Advantage point costs of the
different ranges would be great, too.... ;-)
Use the "Radiation" column as the index column, if you like.
----------- cut ----------------------
Stars v2.0a Habitability Range Chart
g C mR
Grav-Temp-Rad
0.12 -200 0
0.12 -196 1
0.13 -192 2
0.13 -188 3
0.14 -184 4
0.14 -180 5
0.15 -176 6
0.15 -172 7
0.16 -168 8
0.17 -164 9
0.17 -160 10
0.18 -156 11
0.19 -152 12
0.20 -148 13
0.21 -144 14
0.22 -140 15
0.24 -136 16
0.25 -132 17
0.27 -128 18