UAs, Barnacles & More Thread 5 - The Canonn

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Cynaqq

Cynaqq
iFred said:
I think habitable zone is unimportant (no atmosphere).
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What does this even mean?

It's just a zone that we know the barnacles to be inhabiting, based on surface temperature. Temperature really may have nothing to do with it but the Meta-Alloy description suggests it does, however weakly.

What does having an atmosphere has to do with it being in the habitable zone surface temperature wise?
 

Hekik

Hekik
Just to be clear, we're looking for the barnacle habitable zone, not necessarily the habitable zone for life as we know it. Surface temperatures of bodies with no atmosphere is actually quite simple compared to the many variables of planets with atmospheres.

For atmosphereless bodies, I believe the only factors are energy from the star(s) and albedo. In a single star system, that means for a set albedo (the reflectivity of the body) temperature is related to the amount of light from the star, which decreases at distance according to the inverse-square law. It also means that distance is not the only factor; for example a charcoal-black body will have a higher surface temperature than a snow-white body of the same size and distance from the star.
 

magillag

magillag
New Avatar; Same guy. :)

Did anything ever come of the musical fifths in the Barni song?
There was some mention about 100 pages back iirc...
 

CMDR DancingLemur

CMDR DancingLemur
yoda711 said:
Along the lines of the "habitable zone" or "goldilocks zone" that was mentioned earlier... I think there's definitely some data to be mined here.

So far, the barnacles seem to like surface temperatures between 194 and 379 K. That's pretty mild in the galactic sense. If you believe this, then to find candidate planets more quickly, you don't necessarily need to travel to each planet and scan it with a DSS. You only need to scan the star (or maybe just look it's type) and then figure out if there are any non-ice, landable planets within the habitable zone. Where is this habitable zone you ask? That's the hard part, but I've taken a stab at it.

Looking at the existing 4 data points (4 planets where barnacles have been found), there is definitely a relationship between star temperature, distance, and surface temperature. With only 4 data points, (3 really, since two of them are a binary pair) it's difficult to have high confidence, but a trend does emerge.

I picked a POWER fit curve. Why? Because a quick look at the star temperature and distance shows it's clearly not a linear relationship. In my mind, that leaves power, exponential, polynomial, and logarithmic. Logarithmic is not right, since it results in a curve that "curves the wrong way," if you will. I don't think it's exponential either, since the curve shoots up asymptotically before you even get to an O type star. That leaves power and polynomial. With so few data points, polynomial doesn't make any sense (it curves back down). So for now, that leaves us with a Power fit. It may end up being a polynomial with more data, but for now, this is what we have.

So I present this graph, with the caveat that as you get further to the upper right, I have less and less confidence in the data.

It would be good to add more data regarding planets that have been found within this temperature range, even if no barnacles have been found on them (yet), because it would produce a better fitting curve and make the search for barnacles more efficient. I can't at the moment since I'm not at home, but if you PM me I can add the data.


View attachment 96694
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Agreed. Let's say, that the symbol represents some nebula. If there are many systems in the nebula, you'll have to narrow possible candidates and the temperature of the body seems very logical to me.
 

yoda711

yoda711
Hekik said:
Just to be clear, we're looking for the barnacle habitable zone, not necessarily the habitable zone for life as we know it. Surface temperatures of bodies with no atmosphere is actually quite simple compared to the many variables of planets with atmospheres.
Click to expand...

Exactly. Lucky for us :)

Hekik said:
For atmosphereless bodies, I believe the only factors are energy from the star(s) and albedo. In a single star system, that means for a set albedo (the reflectivity of the body) temperature is related to the amount of light from the star, which decreases at distance according to the inverse-square law. It also means that distance is not the only factor; for example a charcoal-black body will have a higher surface temperature than a snow-white body of the same size and distance from the star.
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I hadn't thought about color of the planet affecting surface temperature. It's unclear whether FD have implemented this, however. Similarly, in real-life, planets tidally locked to their stars would have vastly different temperatures on the day-side and night-side, but as far as I can tell, FD's game mechanics make the entire planet the same temperature.
 

Gypsy12

Gypsy12
Hrmmm...
Hmmm.jpg
 

NecoMachina

N
avgroenink said:
A while ago we established using a not so immersive method, that there are Independent, Empire, Federation and Thargoid stations.
Something needs to trigger those Thargoid stations into existence...
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Wait, what? What did we learn about Thargoid stations, and how and where did we learn it? This is the first I've heard. (Not that I doubt your info, I just wasn't aware)
 

yoda711

yoda711
NecoMachina said:
Wait, what? What did we learn about Thargoid stations, and how and where did we learn it? This is the first I've heard. (Not that I doubt your info, I just wasn't aware)
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I think anything inferred from looking at the game file names can be labelled "speculation", at the most. It could have a completely different meaning than what someone interprets.
 
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yoda711

yoda711
magillag said:
I like the 07 Yoda. Can we check star temps from the Galaxy map or do we have to scan them first?
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I think you have to scan them to get their exact temperature. I haven't equipped a DSS yet. If you can see their type then you can know the temperature within a range.

universalcartographics.org has some min/max temps of each star type that has been found, though they are probably outliers.
http://universalcartographics.org/stellar-quick-ref/

Wikipedia might be a more accurate list of "typical" stars of each type.


UC star temperature (K)wikipedia star temperature
maxminmaxminmean
O115,90528,23752,00030,00041,000
B39278/8,182300001000020,000
A15,8645,6801150076009,550
F12,8415,247760060006,800
G13,7003,649600053005,650
K15,2583,410520039004,550
M4,1191,103390001,950

note: the "0" for wiki minimum temp for M stars is inferred and probably inaccurate. It didn't list a minimum that I could see.
 
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woodhouse

woodhouse
yoda711 said:
I think anything inferred from looking at the game file names can be labelled "speculation", at the most. It could have a completely different meaning than what someone interprets.
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True. After all, the game files have also included 'passenger cabins' for months, and we don't know if they will ever really make it into the game.
 

CMDR Poet Starwind

CMDR Poet Starwind
Any chance these are orbital station/planterary settlement auto-fabrication units? Might explain their existence in nebulae, the bubble (marking off "xeno space"), and why the UAs are infecting the stations they're taken to as they begin a malignant takeover.

They've been seeded, which is why they are not defended and why they aren't using any kind of stealth. Some seeds die, but most aren't even found.

Pure speculation.
 
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