UmbralRaptor changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Darboux. We currently target 1.3.1, and 1.4.3. <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/
<UmbralRaptop>
Uh, apparently I badly misremembered the first author's name.
<egg|zzz|egg>
GregroxMun: I mean if it has surface temperatures reaching 1500 K it doesn't really *need* a good heightmap, you're not going to enjoy it much anyway :-p
<UmbralRaptop>
Generic mass-radius relation.
<egg|zzz|egg>
GregroxMun: unless you want to repurpose it as c?
<egg|zzz|egg>
(although that one might be a Venusoid anyway, albeit a much saner one)
<UmbralRaptop>
0.17 era Moho!
<GregroxMun>
All planets deserve good maps
<GregroxMun>
I do have a 0.17 Moho in Alternis Kerbol Rekerjiggered
<GregroxMun>
although I haven't tested it in several versions... it might be broken by now!
<UmbralRaptop>
hah
<egg|zzz|egg>
GregroxMun: re 1b, "up to 2000 K" "more realistic mean temperatures of 750-1500 K" "pressures of water vapour of the order of 10^1-10^4 bar.", you're *really* not going to the surface today :-p
<UmbralRaptop>
1e4 bar… can you get. high temperature ice?
<GregroxMun>
OK ok ok
<GregroxMun>
ok
<GregroxMun>
so
<GregroxMun>
clearly planet b is going to be a worse hell than you can imagine
<GregroxMun>
with molten surface
<egg|zzz|egg>
well astronomers are good at imagining things
<GregroxMun>
and it's not gonna be a fun place
<egg|zzz|egg>
maybe not entirely molten
<GregroxMun>
Wait
<egg|zzz|egg>
but certainly not spacecraft friendly
<GregroxMun>
it could be like an eyeball planet
<egg|zzz|egg>
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
<GregroxMun>
ice on one side, molten on the other
<GregroxMun>
but it's rock instead of ice
<egg|zzz|egg>
thick atmosphere tho so convection
<GregroxMun>
right right
<egg|zzz|egg>
but anyway, compared to it Venus is a walk around the park
<GregroxMun>
on Venus at least there's some habitable parts in the atmosphere
<GregroxMun>
I can't imagine this version of 1b having even a temperate high altitude atmosphere
<GregroxMun>
For now I'm not going to go all the way and imagine the Worst Case Beta
<egg|zzz|egg>
e.g. magnesium melts at 923 K
<GregroxMun>
I'm just gonna give Beta a green cloud cover and a placeholder Eve atmosphere
<GregroxMun>
(with normal colors though, no purple)
<GregroxMun>
One day I intend to overhaul Beta and Charlie
<GregroxMun>
Beta will be the lava hell and Charlie will be a water world
<GregroxMun>
possibly a greenhouse hell in its own right
<GregroxMun>
no not charlie
<GregroxMun>
sorry
<GregroxMun>
Delta
<egg|zzz|egg>
that's in the realistic 750-1500 K range, and we're talking about a Fe/Mg = 0.75, Mg/Si = 1.02 planet
<GregroxMun>
Charlie is about where I want it visually.
<GregroxMun>
I have found that Charlie's atmosphere behaves poorly
<GregroxMun>
as in, crash into it at 1500 km/s from a normal deorbit burn
<egg|zzz|egg>
by the way please keep the textures aligned as they currently (weirdly) are, because we have to tweak some numbers in our patch to preserve that orientation
<UmbralRaptop>
… 1500 km/s?
<egg|zzz|egg>
if you reorient the textures we need to change our patch lest the eyes cease glaring at the sun
<UmbralRaptop>
(I think a transfer from g to b might get you 80 km/s. Maybe.)
<GregroxMun>
I won't reorient the textures
<GregroxMun>
but I may have to tweak the initialRotation of Beta now that it's an eyeball
<GregroxMun>
but since it was never an eyeball in the first place that shouldn't be a problem for you
<egg|zzz|egg>
well, we need our own initialRotation, so it will be, but it's OK, we'll patch our thing
<egg|zzz|egg>
(we have issues like "you can't warp" at the moment so anyway we're not quite ready)
* egg|zzz|egg
stares at the looming new moon
<egg|zzz|egg>
UmbralRaptop: can you slow down the moon for me
<egg|zzz|egg>
uh oh The melting temperature of dry granite at ambient pressure is 1215–1260 °C (2219–2300 °F);[5] it is strongly reduced in the presence of water, down to 650 °C at a few kBar pressure.
<egg|zzz|egg>
yeah you might have quite a bit of lava :D
<GregroxMun>
I'm trying to think of how I'm going to want to build this planet
<GregroxMun>
probably going to use E.V.E.'s city lights for surface glow
<GregroxMun>
and I can use either city lights or KopernicusExpansions glowing ocean for the lava sea
<GregroxMun>
I will probably use both, and see how well that works
<GregroxMun>
I had to hack the scaledspace color to do it
<GregroxMun>
this is really one of the bluest things in the system
<GregroxMun>
note that the see-through clouds here is artistic license
<GregroxMun>
it is just there until I get around to figuring out how to do tidally locked EVE clouds
<egg|zzz|egg>
oh that sounds tricky
<GregroxMun>
I know of at least one case where it's been done
<GregroxMun>
I think EVE clouds with zero speed rotate with the body, so the only thing I need is to get the rotation to be around the substellar point, not the pole
<egg|zzz|egg>
well I don't think that's how they work either
<egg|zzz|egg>
I would expect them to convect away/towards the substellar point, not to rotate around it
<GregroxMun>
I only aim to simulate the substellar storm
<GregroxMun>
the big ol hurricane
<egg|zzz|egg>
but is it really spinny?
<GregroxMun>
well hurricanes do spin
* egg|zzz|egg
no idea how those things work
<egg|zzz|egg>
yes but they also are not equatorial so,
<GregroxMun>
BAH
<GregroxMun>
your face is not equatorial
<GregroxMun>
Fuck it I pretty much need to redo SLIPPIST-1
<GregroxMun>
I know a much better way of doing the ice caps now
<GregroxMun>
instead of baking the color and heightmap in
<GregroxMun>
I can use Regional PQSMods from Kopernicus Expansion
<egg|zzz|egg>
why is that better?
<GregroxMun>
because I can treat the terrain and the ice caps like two separate terrains
<GregroxMun>
and paint a map that applies only ice cap features in specific places
<egg|zzz|egg>
GregroxMun: btw your use of displayName instead of cbNameLater confused us (we change the names anyway, so we just cbNameLatered your Sun and Kerbin), because we use the names in our other data files
<GregroxMun>
ah
<egg|zzz|egg>
(same as RSS, they still cbNameLater because otherwise you need gravity models and an initial state for Kerbin on the Principia side and it gets silly)
<GregroxMun>
I should make a planet which is nothing but an ice cap and use that as a template for the regional Ice Cap.
<GregroxMun>
also I know a way of doing an even simpler ice cap that uses LandControl
<egg|zzz|egg>
note that that pnas paper uses 36.7 days rotation period so that's slow compared to ours :D
<GregroxMun>
oh
<egg|zzz|egg>
basically you don't get proper eyeballs on the TRAPPIST-1 planets?! Ꙩ_ꙩ
<egg|zzz|egg>
then again the colder ones might have completely different circulation
<egg|zzz|egg>
so maybe g can safely stay an eyeball
<egg|zzz|egg>
and perhaps f
<egg|zzz|egg>
but d clearly has a giant water tongue
<GregroxMun>
I wish I had the ability to model this specifically for my own version of SLIPPIST-1
<GregroxMun>
D only has a water tongue if it's actually wet
<egg|zzz|egg>
well I'd settle with a study about the TRAPPIST-1 planets specifically :-p
<egg|zzz|egg>
GregroxMun: true.
<GregroxMun>
yes
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<GregroxMun>
Until I have more information or have studied this topic more I'm cautious of jumping right into this
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<GregroxMun>
there is a *lot* of stuff here that is way outside my comfort zone and span of knowledge
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<egg|zzz|egg>
well, you know how to make planets, so there's that :D
<egg|zzz|egg>
I don't
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<GregroxMun>
You know it'd be kind of fun to have some game that has nothing to do with spaceflight that takes place on very alien planets
<GregroxMun>
like
<GregroxMun>
I dunno
<GregroxMun>
what about a Civ game on a tidally locked world?
<egg|zzz|egg>
hah
<GregroxMun>
or a flight sim on a world with hundred mile an hour winds of hydrogen gas and high gravity
<GregroxMun>
actually that one might be really cool
<GregroxMun>
Jovian Flight Simulator
<GregroxMun>
try to fly just fifty miles from one cloud base to another.
<GregroxMun>
I swear KSP really needs winds
<GregroxMun>
but Squad's never gonna add big, depth-increasing features again
<egg|zzz|egg>
well, everything is doable with sufficiently insane modders
<egg|zzz|egg>
see: axial tilt
<GregroxMun>
someone *did* make wind once
<GregroxMun>
but afaik it never left the really early proof of concept stage
<egg|zzz|egg>
GregroxMun: anyway, your Beta texture looks good as a first step to make it something with an atmosphere and so that we have something to orient with; we can refine that later
<GregroxMun>
do you want me to send you the current version?
<GregroxMun>
I don't know when I'll actually release it.
<egg|zzz|egg>
GregroxMun: well we just intend to ship a patch, not distribute your textures, it's a bit messy otherwise
<GregroxMun>
right
<GregroxMun>
I just meant so you can make sure you get Beta's orientation right
<GregroxMun>
because you say you need your own initialRotation
<egg|zzz|egg>
yeah, makes sense to send me the texture for that purpose
* egg|zzz|egg
should sleep it's 4 in the morning
<egg|zzz|egg>
and yeah, fancy clouds, equatorial water tongues, etc. sound like a lot of fun :D
<GregroxMun>
"The combined transmission spectrum of TRAPPIST-1 b and c rules out a cloud-free hydrogen-dominated atmosphere for each planet, so they are unlikely to harbor an extended gas envelope."
<GregroxMun>
that's interesting
<GregroxMun>
I'm kind of tempted by the cloudless steam atmosphere
<GregroxMun>
it would still be a greenhouse hell like the 5atm hydrogen/helium atmosphere considered last night
<GregroxMun>
but it means you can see all the way through it
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<GregroxMun>
"The more likely CO2 atmosphere..."
<GregroxMun>
and then later in the same article
<GregroxMun>
"The refined density of TRAPPIST-1b, along with the planet's transmission spectrum, indicate that its atmosphere is made mainly of vaporized water."
<GregroxMun>
so which one is actually more likely!?
<GregroxMun>
come on Wiki!
<GregroxMun>
I'm going with the water vapor atmosphere
<UmbralRaptop>
¯\_(ツ)_/¯
<GregroxMun>
superheated steam at 10 atmospheres
* UmbralRaptop
should see if they can find the paper that simulated water loss, etc, and found a high pressure oxygen atmosphere was possible in some cases.
<GregroxMun>
...
<GregroxMun>
oh my god
<GregroxMun>
that would be *fun*
<GregroxMun>
I now wish KSP would simulate rocket parts being on fire
<GregroxMun>
don't burn engines here unless you want your engine to ignite. Not the fuel. The engine.
<UmbralRaptop>
>:D
<GregroxMun>
If 1c can support an oxygen atmosphere I may consider using an O2+CO2 atmosphere at high surface pressure for it
<GregroxMun>
I don't understand why the low density of TRAPPIST-1's planets *must* imply they have huge amounts of water
<GregroxMun>
none of them are less dense than the Moon
<GregroxMun>
why can they not simply be metal poor?
* egg|zzz|egg
back
<GregroxMun>
also
<GregroxMun>
hydrogen and helium aren't stable on planets as small as these worlds
<egg|zzz|egg>
GregroxMun: nono you're misunderstanding what "extended gas envelope" means
<GregroxMun>
what is it then
<egg|zzz|egg>
something Venus-like where you can't see a thing is perfectly within the possibilities
<egg|zzz|egg>
what this tells us is it's not a tiny hot Neptune or somesuch
<egg|zzz|egg>
<GregroxMun> I don't understand why the low density of TRAPPIST-1's planets *must* imply they have huge amounts of water << I told you yesterday
<egg|zzz|egg>
GregroxMun: it's not just the density
<egg|zzz|egg>
if you make things larger at the same density, they're likely not made up of the same thing
<egg|zzz|egg>
the mass-radius relationship is complex
<GregroxMun>
I don't understand
<GregroxMun>
so you mean
<GregroxMun>
if I make the Moon larger, we should expect it to have a higher density for the same composition?
<egg|zzz|egg>
GregroxMun: also UmbralRaptop can probably say more useful things than I can about where the lines in those diagrams come from
<UmbralRaptop>
GregroxMun: yes, self-compression is a thing. (compression is why Earth is denser than Mercury)
<GregroxMun>
oh
<GregroxMun>
I see
<GregroxMun>
that makes a lot of sense
<UmbralRaptop>
but I haven't looked enough at TRAPPIST-1 TTVs to understand egg.
<GregroxMun>
damnit
* UmbralRaptop
clicks on a link.
<egg|zzz|egg>
UmbralRaptop: but I'm not sure I understand what I'm saying
<egg|zzz|egg>
UmbralRaptop: this isn't about TTV, it's about what you do with a radius and a mass
<egg|zzz|egg>
and about the fact that composition follows nonlinear curves
<UmbralRaptop>
Okay, "just" mass/radius
<egg|zzz|egg>
yeah
<egg|zzz|egg>
yeah then you're right it's probably self-compression, not priors on formation
<egg|zzz|egg>
but self-compression is enough to tell you things so yay
<GregroxMun>
apparently it's planet D that has the most Earthlike insolation, not Planet E
<GregroxMun>
This may have something to do with the fact that TRAPPIST-1's mass has gone up since I last checked.
<GregroxMun>
last checked = before the latest SLIPPIST update, that is
<GregroxMun>
I could have sworn I checked and found that Echo was right in the Earthlike region
<GregroxMun>
well
<GregroxMun>
whatever
<GregroxMun>
I can still greenhouse Echo to get it warm enough to be how I want it
<egg|zzz|egg>
GregroxMun: eh, e is pretty earthlike in more respects than d
<UmbralRaptop>
d, e, and f are all maybes on insolation, last I knew.
<egg|zzz|egg>
e has much nicer density
<GregroxMun>
yes
<egg|zzz|egg>
d requires a silly envelope so not an earthlike
<GregroxMun>
I am a lot more comfortable making it Earthlike than any of the other planets
<egg|zzz|egg>
eggsactly
<GregroxMun>
I'm going to have to carefully consider what I do with D.
<GregroxMun>
so it needs an envelope
<egg|zzz|egg>
yeah so water world of sorts
<GregroxMun>
that means an atmosphere that takes up a significant portion of its radius, right?
<egg|zzz|egg>
volatiles include water or ice
<GregroxMun>
or does it just mean a water envelope of liquid ocean
<egg|zzz|egg>
anything
<egg|zzz|egg>
"volatiles"
<egg|zzz|egg>
(in french "volatile" means birds so wording amuses me greatly)
<egg|zzz|egg>
UmbralRaptop: is TRAPPIST-1d covered in birbs
<GregroxMun>
I'll go with a water world with an Earthlike atmosphere at 0.6 atmospheres.
<GregroxMun>
maybe replacing the CO2 with more water vapor
<UmbralRaptop>
egg|zzz|egg: birbs! \o/
<GregroxMun>
I want it to have Earthlike temperatures
<egg|zzz|egg>
yeah, defg can have earthlike atmospheres iirc
<GregroxMun>
OK so this saves the day
<egg|zzz|egg>
d f g probably have to be water worlds
<egg|zzz|egg>
d with an equatorial asymmetric ocean because it spins so fast and is quite warm
<egg|zzz|egg>
(water tongue rather than eyeball)
<GregroxMun>
F's density is just high enough I think it can be a rock-dominated world, right?
<GregroxMun>
I intend to give D the tongue
<GregroxMun>
hmm
<GregroxMun>
i would like to rephrase that please
<egg|zzz|egg>
nah, f requires volatiles too
<egg|zzz|egg>
bdfgh require volatiles
<GregroxMun>
what about c?
<GregroxMun>
I see 0.88 earth densities
<GregroxMun>
and 1.1 Rearth
<egg|zzz|egg>
for b it's the insane atmosphere (scale height maybe 50 km iirc?), dfg water (some ice on the colder ones), h ice
<egg|zzz|egg>
GregroxMun: c can be a "normal" Venus
<GregroxMun>
the wiki said that a steam atmosphere for B would be cloudless
<GregroxMun>
so the coloration would be dominated by rayleigh scattering
<GregroxMun>
I wander then if the atmo would still be so thick that no light reaches the solid surface
<egg|zzz|egg>
UmbralRaptop: GregroxMun: > 50 km scale height means > 5 times thicker than Venus right?
<GregroxMun>
Yes but Venus is invisible because of clouds
<GregroxMun>
KSP doesn't really like to do insanely thick atmospheres, that's the problem
<egg|zzz|egg>
GregroxMun: " TRAPPIST-1b and TRAPPIST-1c could, for instance, harbour a cloud-free water-vapour atmosphere or a Venus-like atmosphere with high-altitude hazes2"
<GregroxMun>
hmm
<GregroxMun>
high altitude hazes could obscure the view
<UmbralRaptop>
egg|zzz|egg: uh, depends on other factors.
<egg|zzz|egg>
that's from "A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c"
<UmbralRaptop>
scale height alone isn't enough.
<GregroxMun>
as much as I don't want to throw out the terrain, I may have to just make T1b functionally a gas giant
<egg|zzz|egg>
UmbralRaptop: ah
<egg|zzz|egg>
GregroxMun: I mean, the terrain on a place that hostile is basically an easter me
<GregroxMun>
pun: nice
<GregroxMun>
I guess you're right
<UmbralRaptop>
scale height = kT/Mg
<egg|zzz|egg>
UmbralRaptop: how do atmospheres work,
<UmbralRaptop>
egg|zzz|egg: scale height assumes an isothermal atmosphere that's not large compared to the planet, but just describes how fast it falls off.
<UmbralRaptop>
eg: both Venus and Mars have larger scale heights than Earth, but for different reasons. (temperature and gravity, respectively)
<GregroxMun>
It will have to have an unrealistic atmospheric characteristics, because I don't want to do anything as crazy as setting a different scaledspace mesh for the space view that is a larger radius than the terrain
<GregroxMun>
maybe I could do a terrain that is below zero alitude but KSP doesn't like that either
<GregroxMun>
since it's an easter egg it might be worth a try
* UmbralRaptop
remembers when Eeloo had terrain at negative altitude.
<GregroxMun>
Mun still does
<GregroxMun>
in a few places
<GregroxMun>
best practice in planet making is to keep a FlattenOcean PQSMod at 0meters with a larger order than any height mod
<GregroxMun>
to keep negative altitudes
<GregroxMun>
(or have an ocean)
<GregroxMun>
I think I'm going to end up starting over SLIPPIST-1 with more realism
<GregroxMun>
and then keep the terrains for the planets I have for some time when I need a planet quickly
<GregroxMun>
I've reused planet terrains that are no longer valid in the past
<GregroxMun>
technically the current Beta is mostly reused terrain from a planet called Voke.
<bees>
<UmbralRaptop> ...100 bars of O2...
<bees>
is there anything that would _not_ burn on the mere thought of it? *F and everything with F not included
<UmbralRaptop>
Things already burned. Noble gasses (not sure about xenon)
<GregroxMun>
every meteor that enters the atmosphere rusts before it vaporizes :P
<GregroxMun>
volcanoes could replenish burnable things for a while, I would think
<GregroxMun>
so in addition to volcanoes being hot lava, it would be hot lava *that is on fire also*
<UmbralRaptop>
oxygen is already a plurality of earth's crust by mass, so the rocks might not be too different.
<GregroxMun>
well I was thinking it would be stuff brought out with the rock, not the rock itself that's burning
<UmbralRaptop>
hm
* UmbralRaptop
stares at Fig 11 in Grimm et al 2017. Does this imply that TRAPPIST-1 is like the jovian moons?
* UmbralRaptop
wishes that fig 10 extended down to Mars and Mercury.
<GregroxMun>
Given a large amount of ice
<GregroxMun>
yeah
<GregroxMun>
In fact I've always noticed the jovian moon analogy
<GregroxMun>
One solar system I want to make one day
<GregroxMun>
a star called Zeus or something
<GregroxMun>
a late-M dwarf
<GregroxMun>
and it has four planets
<GregroxMun>
Io, Europa, Ganymede, and Callisto analogues
<GregroxMun>
scaled so Ganymede is the size of Earth
<GregroxMun>
they'd have ice caps on their far side, and that ice cap would have the texture and map based upon the real body's map
<UmbralRaptop>
If I understand correctly, Grimm et al's models mean that with solar-like Mg/Si ratios, several of the TRAPPIST-1 planets are less dense than all mantle/no core models.
<UmbralRaptop>
Generally to 1-2 σ.
<UmbralRaptop>
Hence, ices and/or big opaque atmospheres. Particularly since 0 iron is questionable.
<UmbralRaptop>
(TRAPPIST-1 is approximately at solar metallicity)
* UmbralRaptop
glares at JWST. Hurry up and launch!
<GregroxMun>
what do Mg/Si ratios do?
<UmbralRaptop>
Something about the possible types of rocks, unsure exactly what.
<egg|zzz|egg>
UmbralRaptop: so c and e are solar-system-telluric-like (venus & earth as an approximation), whereas bdfgh have much more volatiles?
<egg|zzz|egg>
i.e. for GregroxMun's porpoises oceans with various degrees of ice for dfgh, opaque atmospheric insanity for b
<GregroxMun>
this is what I'm thinking for the surfaces
<GregroxMun>
(I may have spent a little too much time photoshopping the authentic orange lighting!)
<GregroxMun>
I'm going to start with Charlie for now
<GregroxMun>
no
<GregroxMun>
Beta
<GregroxMun>
no
<GregroxMun>
damn it
<GregroxMun>
Delta
<GregroxMun>
I need a new naming scheme
<GregroxMun>
:v
<GregroxMun>
or maybe just think before I speak
<GregroxMun>
*type
<egg|zzz|egg>
GregroxMun: the image is a bit blurry for me to comfortably read the text (the handwriting is OK, better than mine at least :-p)
<GregroxMun>
you don't need to read the handwriting
<GregroxMun>
the handwriting is actually no ok :P
<egg|zzz|egg>
it's OK by my standards :D
<egg|zzz|egg>
the pictures are pretty :-)
<egg|zzz|egg>
UmbralRaptop: do the pictures look good from an astronomical standpoint?
<GregroxMun>
let's see if I can't do better in Kopernicus form
<egg|zzz|egg>
UmbralRaptop: should the planets be covered in birbs instead,
<egg|zzz|egg>
GregroxMun: an interesting thing is which orientation the arrowheads/tongues should have (though that's easy to flip later on if you get it wrong)
<UmbralRaptop>
Delta, maybe?
<GregroxMun>
should be pointing east, like in the paper
<kmath>
<chordbug> I wrote a sorting function that only works when you're looking at it: https://t.co/vNMmXW8qzL
<GregroxMun>
https://i.imgur.com/fofoNcH.png I have also updated the colors on the orbit lines to account for sunlight color
<GregroxMun>
I have two favorite stars, just as I have two favorite planets
<GregroxMun>
my favorite planet is Jupiter. But my favorite planet to look at is Saturn
<GregroxMun>
(Earth not counted)
<GregroxMun>
similarly, the most interesting star and star system is TRAPPIST-1
<GregroxMun>
but I also have a favorite star to look at, Alberio, the double star in Cygnus
<egg|zzz|egg>
GregroxMun: the orbit line colours are very similar, I'm wondering whether it might be a usability problem (with principia that's also the apsis colours or node colours
<egg|zzz|egg>
might be fine
<GregroxMun>
hmm
<GregroxMun>
good point
<GregroxMun>
I was at least considering sampling the green for Echo instead of the brown
<egg|zzz|egg>
GregroxMun: might be cool to have some drift ice along the coast of the equatorial ocean of delta
<egg|zzz|egg>
GregroxMun: (in the reference figure you're using there's some fairly thin ice so there would probably be drift ice, considering the strong equatorial current)
<maccollo>
I get that it's supposed to be realistic, but isn't it annoying to play with that kind of tint on?
<GregroxMun>
I don't think so
<egg|zzz|egg>
GregroxMun: mind you RGB isn't a really well-defined thing, that calculator is a bit iffy :-p
<egg|zzz|egg>
(you'd have to specify a colour space)
<egg|zzz|egg>
but works as an approximation for those purposes, it's not like KSP allows you to have colorimetry end-to-end
<egg|zzz|egg>
(most boring mod ever: KSP colorimetry)
<UmbralRaptop>
V-R, J-K, etc. are the only real colors.
<egg|zzz|egg>
UmbralRaptop: colorimetry for astronomers!
<egg|zzz|egg>
UmbralRaptop: so are you suggesting gregox use the color indices to compute the colour instead of the blackbody temperature
<egg|zzz|egg>
gregrox even
<egg|zzz|egg>
I'm going to type that correctly eventually
<egg|zzz|egg>
UmbralRaptop: also should the screens of astronomers be calibrated by colour indices,
<GregroxMun>
If you can come up with a good way of converting color indices to rgb I would try it
<GregroxMun>
:P
<egg|zzz|egg>
!wpn UmbralRaptop
* Qboid
gives UmbralRaptop a magic range
<egg|zzz|egg>
!wpn GregroxMun
* Qboid
gives GregroxMun a Schläfli meson
<GregroxMun>
*FIGHT*
<maccollo>
it's currently it's kind of difficult to set up long term com networks, even with the target vessel frame, since it's not really practical to draw several years of trajectory.
<maccollo>
I was thinking, would it be possible to just return numerical value of min/max distance to target for the entire length of the flight plan?
<maccollo>
if that could be executed fairly quickly it would give enough information to determine how long before a constellation will fall drift of phase
<egg|zzz|egg>
hm unsure how to do that properly tbh
<UmbralRaptop>
egg|zzz|egg: some filter combinations have common assignments to RGB. But monitors sorely lack in dynamic range for my porpoises.
<UmbralRaptop>
Also, T_{eff} for M-dwarfs (especially cooler ones) is surprisingly nontrivial.
<maccollo>
should I add this as an issue?
<UmbralRaptop>
I suspect so.
<GregroxMun>
RGB(136,255,224): The color a kerbal would have to be to be BADA55 in TRAPPIST-1's light.