New to the forum, just thought I’d introduce myself

Thanks Tom Marking some great examples there & yes I too would love to see more astronomical art featuring those worlds – and have those exoplanetary systems given halfway reasonable names not just forgettable and unpronouncable catalogue numbers!

Bill

I wonder if the folks at WooS have ever heard of something called the CHZ (Circumstellar Habitable Zone). Hoth doesn’t seem to be located inside of it. The following exoplanets are located inside of it for their entire orbit assuming certain values for the albedo and greenhouse temperature increase. I’d like to see some artistic renditions of some of moons of these planets which have a much better chance of containing life than Hoth does:

HD 10647b:
Semi-major axis = 2.03 AU
Eccentricity = 0.16
Periastrion = 1.71 AU
Apastrion = 2.35 AU
Orbital period = 1,003 days
Mass is greater than 0.93 Jupiter masses
If albedo = 0.15 and greenhouse temperature increase = 80 deg K then
habitable zone goes from 1.49 AU to 2.36 AU

HD 134987 b:
Semi-major axis = 0.82 AU
Eccentricity = 0.224
Periastrion = 0.64 AU
Apastrion = 1.00 AU
Orbital period = 258 days
Mass is greater than 1.61 Jupiter masses
If albedo = 0.84 and greenhouse temperature increase = 79 deg K then
habitable zone goes from 0.638 AU to 1.01 AU

HD 23079b:
Semi-major axis = 1.60 AU
Eccentricity = 0.102
Periastrion = 1.44 AU
Apastrion = 1.76 AU
Orbital period = 730.6 days
Mass is greater than 2.45 Jupiter masses
If albedo = 0.15 and greenhouse temperature increase = 70 deg K then
habitable zone goes from 1.14 AU to 1.77 AU

HD 28185b:
Semi-major axis = 1.03 AU
Eccentricity = 0.070
Periastrion = 0.96 AU
Apastrion = 1.10 AU
Orbital period = 383 days
Mass is greater than 5.72 Jupiter masses
If albedo = 0.37 and greenhouse temperature increase = 40 deg K then
habitable zone goes from 0.776 AU to 1.14 AU

HD 188015 b:
Semi-major axis = 1.20 AU
Eccentricity = 0.137
Periastrion = 1.04 AU
Apastrion = 1.36 AU
Orbital period = 461 days
Mass is greater than 1.50 Jupiter masses
If albedo = 0.26 and greenhouse temperature increase = 40 deg K then
habitable zone goes from 0.923 AU to 1.36 AU

HD 99109b:
Semi-major axis = 1.10 AU
Eccentricity = 0.09
Periastrion = 1.00 AU
Apastrion = 1.20 AU
Orbital period = 439 days
Mass is greater than 0.502 Jupiter masses
If albedo = 0.15 and greenhouse temperature increase = 48 deg K then
habitable zone goes from 0.804 AU to 1.20 AU

HD 108874 b:
Semi-major axis = 1.05 AU
Eccentricity = 0.114
Periastrion = 0.93 AU
Apastrion = 1.17 AU
Orbital period = 394 days
Mass is greater than 1.30 Jupiter masses
If albedo = 0.37 and greenhouse temperature increase = 40 deg K then
habitable zone goes from 0.820 AU to 1.21 AU

“Decency” is all the mind of the beholder!
Its like art that way.

Correction (sigh) :

“On Earth we know of extremophiles and bacteria that can endure staggering amounts of heat, cold, radiation, lack of water, the presence of concentrated acids and alkais, etc .. Below our feet it has been suggested a whole region of ‘deep hot biosphere’ exists perhaps including silicon based microbes!”

Tom Marking’s quote was meant to be in italics too ..

When is this editing option coming again?

Any chance it could speed up & get here! I need it yesterday!

Our species lives around Pluto’s core-mantle interface on a thin layer of plutonium that’s found in the Plutonian core. Our mantle is like Euopa’s (& even Eris’es) in having a subterrerean ocean hidden below an icy crust. Charon’s tides keeps our planet nice and geologically active – Nix & hydras’ tides not-so much!

Its a pretty cool way to live!

We’ve been around far longer than your youthful species and are (hate to boast but true) far more advanced than Humanity. When your ‘New Horizons’ probe flies by you’ll see our cities as hollows on the Plutonian surface & then you’ll find us out officially.

We’ve actually got a faster than light wormhole device and lots more techno-goodies which we were going to share with humanity to fix things up for ya a litle – getting your spacecraft to all the planets (Pluto most of all!) was our criteria for you proving yourselves worthy of this aid.

But then you had to go & spoil it all by refusing our world proper planetary status so now you’re going to miss out! We’re kinda patriotic that way!

Well you’ll just miss out – at least until you’ve included us on your planets list again and given each of the anti-Pluto IAU members a televised kick up the backside anyway!

Bear in mind too that life has been known or speculated to exist in some pretty astonishing and harsh places.

On Earth we know of extremophiles and bacteria thatcan endure staggeringamoiunts of heat, cold, radiation, lack of water, presenceof acids and alkais etc .. Below our feet itha sbeen suggested awhole region of deep hotbiosphere exists perhaps including silicon based microbes!

Elsewhere within our solar system there is possible life on Mars, Europa, Encleadus, Titan, etc .. Arthur C.Clarke has plausibly imagined aerial lifeforms living in the clouds of Jupiter. Ben Bova has made at least a reasonable speculative case for life existing in his novels on Mars, in the clouds and on the surface of venus, even in the rings of Saturn – see his Sf novels.

Now I know that’s science fiction where imagination is given more reign but extraopolating to how ‘Hoth’ may be (&how very little wereallyknow for certain about it) I wouldn’t rule out the possibility of ‘Hoth’ having life. Not that I’d put the odds at 100% or anywhere near that but still ..

… I’d love to see us invent an FTL drive and go see!

(Yes, yes, I know that may well NOT be possible either. I love both Sf and science – wish the latter would help accomplish the dreams of the former a bit more rather than squash ‘em with gosh-durned relativity & so forth.;-) )