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SPACE ENGINE Exploration Log 23: Carbon World

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Description

ANTHRACENE
System:        LBS 1804 A/B (F9V/ K7V)
Dist:             1450.1 LY
Class:           Temperate Terra 
Radius:         8880 km (1.392 Re)
Mass:            0.3001 Me
Axial Tilt        40.59°
ESI:              0.824
sma:             1.892 M km
Day Length: 199.4 hrs (tidal lock)
Gravity:        1.811 g
atm:             2.241
T:                 256 K

We've been out in space for nearly two years and only now have we come across a carbon planet. Carbon planets are worlds entirely devoid of water and where the geology is carbon based, rather than the silicate based geology present on virtually every rocky planet. Instead of minerals like olivine you get planes of graphite. Diamonds are exceedingly common on the surface and instead of water, the 'water' cycle is driven by hydrocarbons like butane, pentane, and hexane that evaporate, condensate, and rain down to fill a few large seas and lakes. Rivers of hydrocarbon sludge snake their way across the planet and atop the higher mountains black 'snow' falls. Unusual for Anthracene is the lack of black, carbon smog in the atmosphere. There must be some other process are work scrubbing the atmosphere but we have neither the time nor the equipment to investigate further. What our instruments have confirmed is the presence of unicellular microorganisms growing in the small hydrocarbon seas. They aren't a common sight in samples and refuse to grow in laboratory conditions. Again, a follow team will have a much better chance at figuring these little guys out than us. 

While carbon planets are an excellent source of oil and other carbon compounds they are impossible to terraform. A huge part of terraforming is the sequestering of excess greenhouse gasses, such as carbon dioxide. To that end, terraformers would have to sequester the entire planet in order to make it habitable.

One last note: the blue orb seen passing between Anthracene and its parent gas giant is the water world Cobalt. Probes have confirmed an astounding number of microorganisms developing. It is obvious that while life can take root almost anywhere, it vastly prefers planets dominated by water and silicon-oxygen morphologies. 

<<- START: Exploration Log 1: Out from Eden
<- PREVIOUS: Exploration Log 22: Life Under Haze
-> NEXT: Exploration Log 24: Bars of Black

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