Celestia Forums

Experiment - Epsilon Eridani
January 16th 3005

The official Handover Ceremony Finished 12 midnight and even though the New Federation is in charge of this station, the Great Experiment Continues. Despite its Moral Ambiguity, one of the Federation's goals is the scientific advancement. and with the completion of the "Twenty-Four" overpopulation is no longer a problem

Orbiting over 800Km from Experiment, this Observation platform Monitors the progress of the Great Experiment started 130 years ago. 50,000 people were stranded with Iron age technology and observed to see how society progresses.

Independence, the Capital world in the Alliance orbits in the background

Dronezone from SomaFM goes perfect for celestial viewing!

Polaris as seen in the Orion's Arm scenario; this giant variable star is being modified by Starlifting to remove some of its mass and slow down its life cycle



For more information about starlifting, see this wiki page
http://en.wikipedia.org/wiki/Star_lifting

bh wrote:

Dronezone from SomaFM goes perfect for celestial viewing!

Love SomaFM, only I listen to Groove Salad instead lol.

Great Lord... I only listen to GrooveSalad too! Except when I'm on Celestia!
I adore GrooveSalad.

Thanks Bob...

Now that's a picture I really like.

Thanks again, Brain-Dead

Thanks Bob! New Earth/Ocean texture. Coming soon...

An outpost on Mimas.

Reiko wrote:An outpost on Mimas.

Ah, Reiko,

I see you have meanwhile found out how to place texture tiles on the surface of celestial bodies! NICE...

Fridger

2006 RH120

A Dyson Swarm made using orbiting objects (solar power collectors) in a series of inclined, eccentric orbits. This kind of swarm was suggested by Bob Jenkins


there are 26000+ objects in this image; the swarm could be made much thicker (by adding more objects while changing the inclination and semimajor axis of each orbit) but the objects would not ever cross paths (assuming they kept the same orbit indefinitely).

Here's Bob's page about non-colliding orbits
http://burtleburtle.net/bob/scifi/itzuorb.html

t00fri wrote:

Reiko wrote:An outpost on Mimas.

Ah, Reiko,

I see you have meanwhile found out how to place texture tiles on the surface of celestial bodies! NICE...

Fridger

Well I cheated. I ended up making two models for the surface. One was a flat plane and the other was a plane with hills added. I still don't know how to place a single texture tile on a specific location of a planetary surface, just know how to do objects for now.

I like the added flower.

The re-imagined Enterprise from the new movie.





I like the original better.

@ symaski62 -
@ Reiko - I agree with you about the original, but this one does look pretty cool! Nice.

eburacum45 wrote:A Dyson Swarm made using orbiting objects (solar power collectors) in a series of inclined, eccentric orbits....

Nice! I think I'll make one for myself!

EDIT:OK, here's my one (~5000 objects, with 72 orbits shown)

Yours has fewer objects than mine, but looks like it might collect more starlight.

Bob Jenkin's idea is to put a second, larger swarm outside the first at right angles; this would collect some of the energy the first one misses. But I can't quite get my head round how to change the angle of this torus...

I've been trying to figure out the best way to collect sunlight with mirrors for use in a deep space habitat. One way is to use a 45 degree mirror as used in the Stanford Torus design, focus the incoming light using a parabolic reflector onto a, much smaller curved mirror which finally focuses the light into the central axis of the habitat.

The result could look something like this


I found the method on this page by John Savard;
http://www.quadibloc.com/science/spaint.htm
although I've adapted it a little bit to make the cylinder symmetrical, which would hopefully make it a little easier to reduce tumbling.

Tumbling apparently is a real problem in an object with a long rotating axis like this sort of habitat. Obviously the mirrors would not rotate, except to remain oriented to point at the star; so some sort of active mechanism would be required to maintain the different rates of rotation in such a system.

Here's another cylinder, with a large parabolic mirror this time, which I've split up into
separate sections, so that the centre of gravity is nearer the axis.

Both lenses and mirrors can be flattened by dividing them up into concentric
rings in this way.




(note: this one is orbiting a different gas giant)

55 Cancri e - Vulcan
14th May 2974

Light years away from the familiar Vulcan depicted in Star Trek, this hot hellish world is my name for 55 Cancri e. True to the Roman god of fire and lighting, this world is highly volcanic in nature. Magma seas cover the world visible in the eternal night side. the huge atmosphere, almost twice the pressure of Venus, serves to keep the surface temperature even across the surface. the high heat means that not even clouds can form meaning the air is clear but hazy. Silicon vapour contributes to the haze as does metallic vapour. its baked companion Caeculus orbits overhead, raising tides and contributing to its Volcanism.

in the year 2974 Humankind established a small mining post on this world. in the gravity of nearly 3G's life is hard but rewarding. With just a few months work, miners can buy a retirement, usually on the planet of Grace orbiting Candelifera (55 Cancri f). the fatality rate is however quite high due to frequent VulcanQuakes, MagmaBursts and industrial accidents.

PLANET STATS

Classification: PCL 6.0 Halcyonic/Epistellar
Radius: 14700 KM
Mass: 14.31 Earth Masses
Orbital Radius: 0.0377 AU (5.6 million Km)
Orbital Period 2.8 Days

Atmospheric Composition
71% Carbon Dioxide
16% Sulphur Dioxide
9% Nitrogen
2%Hydrogen
1%Helium
1%Trace Gasses
Surface Pressure 163 Bars
Surface Temperature 1100 Kelvin