Official source for radiation levels on / above Aballon?


General Discussion


As the title suggests, I'm looking for canonical sources that might detail (or infer) the exact solar radiation levels on Aballon. Specifically while in high-orbit.

I'm assuming it's either High or Severe in intensity. But I'd like to avoid such imprecise guess-work, if this topic has ever been specifically detailed in an AP or SFS module.

... Now, as a GM, I plan on taking every reasonable measure to discourage my PCs from embarking on any extra-vehicular activity while they are in such close proximity to the Sun. But I'd REALLY like to have the exact numbers handy if they choose to ignore the mechanic's Geiger-counter.


Graylight wrote:

As the title suggests, I'm looking for canonical sources that might detail (or infer) the exact solar radiation levels on Aballon. Specifically while in high-orbit.

I'm assuming it's either High or Severe in intensity. But I'd like to avoid such imprecise guess-work, if this topic has ever been specifically detailed in an AP or SFS module.

... Now, as a GM, I plan on taking every reasonable measure to discourage my PCs from embarking on any extra-vehicular activity while they are in such close proximity to the Sun. But I'd REALLY like to have the exact numbers handy if they choose to ignore the mechanic's Geiger-counter.

Officially, it's the heat that kills you, not the radiation.

Otherwise, a quick google also tells me that mercury receives 7x the solar radiation earth does... what that means in terms of low/medium/high/severe radiation I don't know. Though I do think high/severe are perhaps pushing it a little. I'd probably hit PCs with beyond extreme heat fire damage before asking for radiation saves... Though I might add a low or medium just to add insult to injury.


If Mercury receievs 7x the radiation at Earth they might mean at the point of Earth's magnetosphere, not the surface. If the former, then the effect at the surface is going to be a lot more than 7x.

Given what I think I know about power laws of transmission, I'd be surprised if the 7x isn't at the point of the magnetosphere.


I don’t believe Aballon was ever detailed outside of Distant Worlds; to my knowledge, no Society scenarios went there or anything.


keftiu wrote:
I don’t believe Aballon was ever detailed outside of Distant Worlds; to my knowledge, no Society scenarios went there or anything.

My apologies - thought this was in the PF forum!


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The answer you're going to get, but that you're not going to like, is "Severe", because that's as high as the mechanics of the core book go. Beyond that, there have been no experiments with exposing electronics or human beings to solar radiation in the orbit of Mercury without any protection, presumably because it would be unethical and pointless.

If you're measuring by Milli-Sieverts (mSv) then nobody's going to be able to help you because that's a level of granularity not supported by the system.


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Leon Aquilla wrote:

there have been no experiments with exposing electronics or human beings to solar radiation in the orbit of Mercury without any protection, presumably because it would be unethical and pointless.

I can think of other reasons no experiments exposing human beings to solar radiation the orbig of Mercury without any protection have conducted.


Does Starfinder even subscribe to the idea of background radiation instead of limiting radiation to specific, active events like spells or exceptional locations like standing next to a reactor?


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Yes. Page 394, Corebook has examples. It's just immaterial because every armorset deflects low radiation and level 7+ armor protects against medium.


Leon Aquilla wrote:
The answer you're going to get, but that you're not going to like, is "Severe", because that's as high as the mechanics of the core book go.

Well, that'll be good enough for me.

If nothing else, 20 points of HP damage (and a practically unwinnable Fortitude save) per-round should give the PCs the kind of immediate feedback that pushes them to find other options.


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Graylight wrote:
Leon Aquilla wrote:
The answer you're going to get, but that you're not going to like, is "Severe", because that's as high as the mechanics of the core book go.

Well, that'll be good enough for me.

If nothing else, 20 points of HP damage (and a practically unwinnable Fortitude save) per-round should give the PCs the kind of immediate feedback that pushes them to find other options.

Depending on what level they are and whether they have power armor training you might give them Sci-Shield Units from Tech Revolution, p. 55.


IMO, the bigger problem with the radiation rules is the low end, not the high end. High and Severe work fine for situations like solar radiation storms or active nuclear reactors; however, even Low is a "if you are not protected you are dead in minutes" hazard. There is no support for radiation levels that are hazards on a scale longer than combat encounters, where you are worried about picking up radiation sickness over hours or days or weeks rather than hitting zero HP after ten rounds.


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Radiation Sickness follows the disease track with a check of once per day. If you were still bathed in a radiation environment you could just apply a -4 to the resist check.


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Leon Aquilla wrote:
Radiation Sickness follows the disease track with a check of once per day. If you were still bathed in a radiation environment you could just apply a -4 to the resist check.

The problem is the damage. It makes those radiation sickness checks moot, because by the time you actually have to make one you've long since died from running out of HP, even at Low. Remember, the damage occurs before the save, and with no way to prevent it.

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