It's getting hot in here, so take off all your mesh armor? (Traveller Tuesday #18)

Ishee doesn't have the technology to have any orbital cities, and its level of personal military technology is commensurate with its space transportation, thanks to a roll of 6 on 2d6. TL4 personal military technology is marked by guns with cartridges of ammo (rather than individually loaded) and mesh jackets. Thanks to a rolled 8 (and it being based off of land transport TL rather than energy), Ishee has further developed its heavy military technology, to a TL of 5. That means that those cartridge-loading, mesh-jacketed infantryfolk might face mortars and soft steel emplacements. That's the same level as Ishee's medical technology, by the way, which seems to indicate that large-scale war is about as dangerous and lethal as you'd expect, but more one-on-one or small-squad combats are actually a bit safer than you'd think. There's a lot of calling in the cavalry (and with TL7 air transport, air strikes!) in Isheean combat.

It's now time to consider Ishee's novelty technology level, which is rather important for this planet in particular, given its culture. Perhaps obviously, said tech level will be an import tech level. Maybe I should say “import” because, although I'm gonna determine it the same way (highest tech level from among the nearby Class A Starports), it actually represents the various bleeding-edge attempts at paradigm-shifters churned out by the Isheean elite (especially in the Guild-State).

Although balkanized worlds often end up with an Amber travel code, it actually seems a rather peaceful place, without much danger to the modern astronaut from most of the tech natively available there and most conflict being in the realms of contract law or technological innovation. In light of all that and the FutureShockFest, I decide that Ishee gets a Green code.

Now, it's just time to answer any lingering questions about Ishee, locking down our final vision of the planet. Including a more detailed temperature calculation, which is where we begin. We'll be plugging various modifiers into the final worksheet, which will look something like this:

Col:	1	2	3	4	5	6	7	8	9	10	11
Hex Row	Base Temp	Latitude Mod	Col 1+2	Summer Plus	Daytime Plus	Orbit Ecc Plus	Highest Possible Temp 3+4+5+6	Winter Minus	Nighttime Minus	Orbit Ecc Minus	Lowest Possible Temp 3+8+ 9+10
1	83.12º C
2	83.12º C
3	83.12º C
4	83.12º C
5	83.12º C
6	83.12º C
7	83.12º C
8	83.12º C
9	83.12º C
10	83.12º C
11	83.12º C

It looks complicated (and it kinda is), but this allows us to get a view of seasonal, time-of-day, and latitude effects on the planet's temperature, which is invaluable for figuring out the patterns of life on Ishee. I'm hoping there's a significant space-time window for baseline humans to wander the surface unprotected!

Ishee's orbit is entirely ineccentric, so there is no orbital eccentricity effect on its temperature. At size 2, there's a 4º difference between the hexrows. The effects of Ishee's axial tilt are more complicated. As a reminder, that tilt is 21º, which gives us a base increase in temperature during summer of 12.6º C and decrease during winter of -21º C. That increase is then applied inequally across the planet's hexrows ~ in Ishee's case, the first three rows don't experience a seasonal temperature shift, with hexrows 4, 5, and 6 experiencing ¼, ½, and ¾ of those base shifts. Hexrows 7 and all the way from there to the polls experience the full seasonal difference in temperature.

Ishee's day is 19 Earth-days, 57 minutes, and 36 seconds long. Let's call it 19.04 days for these calculations. That means that night and day are each 9.52 days long. Then, we figure out the rotation-luminosity factor: L/√D (the effective combined luminosity of the two stars divided by the square root of Ishee's distance from the primary star). 0.506/√0.2=1.13, which means that each hour of daylight increases the temperature by 0.565º C to a maximum of +1006.04º C. Of course, that large of an increase would take more than 74 days, so the actual maximum is going to be +129.09º C. Similarly, nighttime (whose effects are easier to calculate) drops the temperature by 1º C every hour to a minimum of -53.42º C.

Col:	1	2	3	4	5	6	7	8	9	10	11
Hex Row	Base Temp	Latitude Mod	Col 1+2	Summer Plus	Daytime Plus	Orbit Ecc Plus	Highest Possible Temp 3+4+5+6	Winter Minus	Nighttime Minus	Orbit Ecc Minus	Lowest Possible Temp 3+8+ 9+10
1	83.12º C	+12	95.12º C	0	+129.09	0	224.21º C	0	-53.42	0	41.7º C
2	83.12º C	+8	91.12º C	0	+129.09	0	220.21º C	0	-53.42	0	37.7º C
3	83.12º C	+4	87.12º C	0	+129.09	0	216.21º C	0	-53.42	0	33.7º C
4	83.12º C	0	83.12º C	+3.15	+129.09	0	215.36º C	-5.25	-53.42	0	24.45º C
5	83.12º C	-4	79.12º C	+6.3	+129.09	0	214.49º C	-10.5	-53.42	0	15.2º C
6	83.12º C	-8	75.12º C	+9.45	+129.09	0	213.66º C	-15.75	-53.42	0	5.95º C
7	83.12º C	-12	71.12º C	+12.6	+129.09	0	212.81º C	-21	-53.42	0	-3.3º C
8	83.12º C	-16	67.12º C	+12.6	+129.09	0	208.81º C	-21	-53.42	0	-7.3º C
9	83.12º C	-20	63.12º C	+12.6	+129.09	0	204.81º C	-21	-53.42	0	-11.3º C
10	83.12º C	-24	59.12º C	+12.6	+129.09	0	200.81º C	-21	-53.42	0	-15.3º C
11	83.12º C	-28	55.12º C	+12.6	+129.09	0	196.81º C	-21	-53.42	0	-19.3º C