Celestia Forums

I have still to read the pdf paper but I'm already enthusiastic: this could mean apparently hot barren planets have not disrupted the habitable zone. I wait for the discovery of a Earth-mass planet around, for example, 70 Virginis, HD 108147, HD 114762, Gliese 436 and much more...

Why should it be gray or reddish? An incandescent light bulb has a filament around 3000 K, which is a similar temperature to a star of spectral type M6-7V or so (according to this list ). I personally have no problems seeing blue objects as blue under such lights. If it's so, right! When I hear "bl...

Presumably the temperature would go up during a flare event, which would presumably inflate the atmosphere and thus allow silicate and iron clouds to form higher in the atmosphere, or possibly prevent them forming at all. I'd guess the planet would still be bluish despite the red dwarf producing le...

What I was thinking about definatly wouldnt work around an M-type Dwarf. To be close enough to get the needed heat to keep most of the planets water vapourised in the air, it would become tidally locked, and obviously green (or other coloured) plants could never grow on the dark side, leaving a who...

Such a world could appear as a Dwarf Jovian Planet with a helium atmosphere (hydrogen-less by the way!) and forzen CO2 and rocks continents and an inferred liquid methane ocean. And we could describe a "Methanegeology" instead of a "Hydrogeology" because CH4 in outer zone of Habitable one (but clos...

Red1530 wrote:The planet must be in the inner part of the habitual zone as well.

Of course. For example:

AD Leonis - Flare star

Spectral type: M3.5Ve
Habitable zone = 0.11 - 0.13 AUs

A "Rainforest planet" could be located at 0.095 - 0.11 AUs.
In my opinion...

I guess how a Hot Jupiter around a relatively low mass flare star (0.1 - 0.3 Solar masses) could appear. Assuming a low mass for the planet as well (0.05 - 0.3 Jupiter masses), how would it appear? Maybe dark grey with a reddish halo. But which changes could we see when star's flaring??

Such a world could appear as a Dwarf Jovian Planet with a helium atmosphere (hydrogen-less by the way!) and forzen CO2 and rocks continents and an inferred liquid methane ocean. And we could describe a "Methanegeology" instead of a "Hydrogeology" because CH4 in outer zone of Habitable one (but close...

You gave me the idea ...

I think M-Dwarf stars with a high IR ratio and probably tidally locked planet may host such a world. I created a similar system in my SciFi Comics

Has someone seen this? :D http://www.extrasolar.eu/star.php?st=HD+24040 http://www.extrasolar.eu/star.php?st=HD+154345 These planets are still not confirmed, further investigations are needed but some interesting data have been drawn. We should have got two hydrocarbons jovian planets. The mass is b...