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karov

Member

From: Bulgaria

Registered: 2004-06-03

Posts: 953

Gna terraformation ?

1.5 times Earth mass on 300 AU.

with average density of say 2.5 ( 2.3 if pure water for this mass ... )  it will have the following physical characteristics .:

from  http://www.transhuman.talktalk.net/iw/Geosync.htm .:

Diameter = 18 380    km
Density = 2.76    g/cm3
Surface Area =     1061 million square km
Roche Limit =     2400 km (nearest possible natural satelite)
Surface Gravity = 0.73 Gs
To Orbit Velocity = 8.08    km per second
Thrust to orbit time at 3G = 5.9    minutes
Escape Velocity = 11.4    km per second
-        
Geosynchronous orbital distance =     km, or miles (from surface of planet)
Geosynchronous orbital velocity =     km/s , or miles per second

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Bear in mind that if (most probably ) this appears true ( http://arxiv.org/abs/1201.2687 ), i.e. approx. a million planemos per fusor , then there will be THOUSANDS of such size Sol-bound planemos.

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Tech? - A plasmoid kept-in-place kinetically-rigidized cloud of 5 and a half millions of km diameter will focus on "Gna" as much natural Solar light as to achieve Earth level of average areal insOlation.

YES, I mean https://www.foresight.org/nanodot/?p=2922 ... with non-aerostatic ( of course ) but photonic statite "machinelets" soleta cloud

This

http://orbitsimulator.com/formulas/hillsphere.html

hill sphere calculator, tells us that the Sol-Gna L1 point would be ~3.5 AU from Gna - over half a billion km distance , hence the statite kinetic structure Soleta Cloud would NOT be necessary to be very tight or too organized, but just the cumulative effect of the "machinelets" which could be spread over many millions and even dozens of millions of km with huge average distance between the units - each of them riding their own solar photonic stream for simultaneous position navigation and redirection onto Gna.

5.5m km wide optical "device" aperture corresponds to quite modest amount of mass necessary for rough materials to be built the whole Cloud of the 'luminosphere'.

The Cloud in combination of (say) solaser could be used to provide for multi-directional photonic thrust multi-reflection "tramway" between Innermost SolSys, Gna and other destinations ...

This - http://nathangeffen.webfactional.com/sp … travel.php , gives is idea about travel constant acceleration/deceleration travel from Inner SolSys to and from Gna.:

Approx. Only  month and a half / 7 weeks /  at 1g , max. velocity of 7-ish % of light speed.

btw, 1+ bln sq.km surface area ... at 50/50% water/land distro gives over half a billion sq.km. ( more then the total Earth's surface ) of land.

Enough for 15-20 'full size' continents.

Last edited by karov (2015-12-12 06:10:32)

Void

Member

Registered: 2011-12-29

Posts: 7,137

Re: Gna terraformation ?

I am aware of your intentions for the hall weather machine, and solar reflectors.

I am curious, have you ever tried to replicate the greenhouse effects of Venus, or use super greenhouse gasses in your projections?

I would think this would greatly improve the heating effects.

It also might suggest a very large surface ocean planet, but perhaps one without large waves, or dangerous storms.  Tropical?

Dissolved minerals in the water as a source to build your floating islands?

Last edited by Void (2015-12-13 14:05:40)

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Done.

karov

Member

From: Bulgaria

Registered: 2004-06-03

Posts: 953

Re: Gna terraformation ?

Void,

I am aware of your intentions for the hall weather machine, and solar reflectors.

Because it is the cheapest (as investment) and lightest (as mass needed) of ALL possible options tapping into natural MIGHTY 'river' of energy, harvestable for billennia without sophisticated failure-prone machinery needing hands to maintain...

I am curious, have you ever tried to replicate the greenhouse effects of Venus, or use super greenhouse gasses in your projections?

Hall Weather Machine IS A super-greenhouse gas - in fact 1000 times better the CO2. Why would we need anything else?
ALSO it is from universally ubiquitously abundant materials, it is smart and (potentially) self-replicating.
It is positionable as statites in-space ( forced orbits ) either...

I would think this would greatly improve the heating effects.

Improve?! With orders and orders of magnitude weaker effects? 
Also why to poison the nice breathable atmosphere with complex unstable compounds?

It also might suggest a very large surface ocean planet, but perhaps one without large waves, or dangerous storms.  Tropical?

No need to be oceanic. Just cold within. With lithosphere mounted on sculpted icy 'toposphere' underneath.
Imagine less then ice/water dense 'rocky' continents.

Dissolved minerals in the water as a source to build your floating islands?

All external system ices are dirty. Very dirty. Typical comet is a third ices ( mainly water, but also alkane, ammonia ...) + a third rock (pulverized, dust, frozen mud ) and a third petroleum ( kerogene )... Even on/into very well differentiated big body there is plenty of 'dirt' enough to build decent 'lithosphere'

karov

Member

From: Bulgaria

Registered: 2004-06-03

Posts: 953

Re: Gna terraformation ?

Sorry. The Habitats Spheres a-la-Birch are.:

6. SPACE COLONIES

Space colonies, indeed most forms of human habitat, will comprise (Fig 6.1):

The luminosphere provides the habitat with light and heat from the sun or some other source of energy. The atmosphere provides breathable air and is important in weather. The biosphere includes all life forms but not their non-living environment (in the literature, biosphere is sometimes given the wider meaning of an ecosystem). The geosphere is the landscaped surface of soil, rock and water, over a contoured base. The geosphere base is likely to be of a lightweight fractal honeycomb construction Below the base is the toposphere, supporting the whole habitat.

These are generic descriptions applicable to most forms of habitat, including natural planets like the Earth (where the geosphere is mostly solid rock, and the toposphere is the mantle and core).

http://buildengineer.com/www.paulbirch. … anets.html

incl. re: rotating space habitats