Here's the skinny. I want ti put Galt's World in an inobvious place. It should not be "close" to anything else with regards to hyperspace links, and the nice...
... the ... Well, let's set aside HD 10697 (the one with the 6.2 Jovian in a circular orbit). According to the Extrasolar Encyclopaedia it is 100 light years...
... A sun-like star also stays a subgiant for perhaps 1 billion years. While it surely increase in luminosity as a subgiant, the star experienced a ...
The discussion of subgiant stars and whether they could have any habitable planets led me to do some exploring runs with my planetary temperature-sim program,...
... Two points. 1. I have seen HZ typically listed as being in the range (for Sol) of .85au to 1.2au. It is very interesting to see some support of that...
I wrote: "Venus has no plate tectonics as such, but it certainly has volcanism. Volcanism is just igneous intrusive activity, whereas tectonics is the folding...
... The discovered superjovian system you refer to and Eta Bootis are different systems, unless I've missed something. I do not really think it is that much of...
The discussion of subgiant stars and whether they could have any habitable planets led me to do some exploring runs with my planetary temperature-sim program,...
... Only if you assume that the Bode constant is universal, and not dependent on stellar characteristics such as mass. If the Bode constant is mass-dependent,...
... Older estimates I saw were in the 0.85 range, but some recent ones have been much tighter. However, while these estimates considered greenhouse heating,...
... a ... sequence ... other ... The results I've seen in reasonably up-to-date (not more than five years old) articles and books indicate overheating in 1-3...
Post 3: Since there already is a discussion on Altiplano going, lets postpone Shamballah for now. Rick has supplied data for the world. Of the numerical...
... billion ... Cloud-cooling is a likely culprit. Modelers are reluctant to incorporate it, because the effect of clouds - even their net direction - is so...
... Which on reflection is iffy, or at least raises questions. I believe I originally specified something like 80 pct oxygen - which raises the question both...
... make ... use ... orphaned ... My primary goal here is to avoid moving planets to other stars. So, some way or another, Altiplano has to work for Delta...
... Okay, that leaves with a new choice: 1) Throw out the whole "wet Mars" aspect of the planet (e.g., low mass) - perhaps saving it for a now-orphaned colony...
... It did not seem to work for Venus. ... But the orbits you show above does not indicate the 1.72 number is of special importance - most numbers deviate from...
... And what radiation levels would we be talking about? What would the effects on the other atmospheric gasses be? On Earth, oxygen is biologically recycled...
Unfortunately, I don't have time to reply to the previous posts in detail right now, but I wanted to interject one other idea into this discussion. There have...
... than ... would ... Nope. My baseline version doesn't save Venus either, for what it's worth. But Venus may have gotten fewer volatiles anyway, forming ...
... effects ... Tough question, and I don't know the answer. ... (2500 ... Well, how about this option? Sputtering does not produce human-breatheable levels,...
... text ... 1971. This is kind of amusing, even though I'm the one who shot myself in the foot. I've more than once read language-usage mavens b!tching about...
... of ... Do they? Are more numbers significantly closer to 1.72 than to the "ends" of the range the eight numbers provide? ... But how do we know it is the...
Rick, I think we'll save the concept of a "minimum mass" human habitable planet for a younger star system. Goose Altiplano's mass up a bit more than the...
At the END of this process, I will take suggestions for removing/consildating planets -- some of these will be easy, simply because they don't get deveoped...
... aerobic ... That's my preference as well. So ... let's see what we need to further define the planet. We'll drop the sputtering and all that, and presume...
... have too ... die ... resonance ... To the first point, we obviously have a very limited sample to judge from! We won't know till we start to get...
... Whoa. I think it's quite opposite. Lower-mass, and presumably lower-gravity, suggest 'smaller' mass molecular retention in the atmosphere. O3 is probably ...
Ooh, ooh, I can help. The key word is "Xeriscaping". For a non-conclusive list, I direct you to the Colorado Springs Utilities's Xeriscape Garden - ...
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