NuclearVacuum's work

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Re: NuclearVacuum's work

Post by NuclearVacuum on 19th January 2010, 9:03 pm

Edasich wrote:Nice textures, but I find the first moon a bit few realistic in colors, whereas the former one looks way much too "edenic" to orbit around 55 Cancri f that swings between 0.6 and 0.8 AUs (if HZ is roughly 0.8 AUs). Maybe more arid appearance could fit with.

These are just my impressions Rolling Eyes

Really? Can you be a little more specific. Maybe I can improve them a little.

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Re: NuclearVacuum's work

Post by Edasich on 20th January 2010, 5:19 am

Ice caps on the moon could be less wide. Here it seems a great frozen ocean mass. Maybe a bit less ice, less water and dark grey continents made of basalts (alike Dry Valley of Antarctica). Liquid water at equator fits well enough.

About 55 Cnc f's moon, just way much less water and much more desert.
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Re: NuclearVacuum's work

Post by Edasich on 20th January 2010, 12:27 pm

Much better, now. Probably more dense cloud cover on frozen moon's hemisphere, because ice caps (alike Antarctica) host high pressure zones where strong air masses diverge towards lower ones generating winds. This could fuel very strong "tradewinds"-analogues from poles to moon equator. These winds' strenght is able to "sweep" snow cover away leaving uncovered continental areas made of basalts as well as seaways (the so called polynyas) Smile
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Re: NuclearVacuum's work

Post by NuclearVacuum on 20th January 2010, 12:59 pm

Edasich wrote:Much better, now. Probably more dense cloud cover on frozen moon's hemisphere, because ice caps (alike Antarctica) host high pressure zones where strong air masses diverge towards lower ones generating winds. This could fuel very strong "tradewinds"-analogues from poles to moon equator. These winds' strenght is able to "sweep" snow cover away leaving uncovered continental areas made of basalts as well as seaways (the so called polynyas) Smile

hah... never knew that.

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Re: NuclearVacuum's work

Post by Lazarus on 20th January 2010, 1:40 pm

One of the things I'd be worried about on that Ups And d moon is that it looks like it is headed for total glaciation. IIRC the various predictions of snowball Earths have runaway glaciation occurring at much lower ice coverage fractions, triggered by the high albedo of the ice. Runaway glaciation is presumably easier on the outer edges of the habitable zone too... to have "habitable" conditions, you'd want to have a largely oceanic moon with a fairly substantial atmosphere to provide greenhouse warming. Slow rotation is good because it helps transport heat to the poles.
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