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 Orion's Arm Celestia Addons: page II

Celestia header


To explore the universe of Orion's Arm first download the free programs and addons on this page (Orion's Arm Addons Page 1).
Now we have the basic package, we can add some of the Megastructures, and  some high-res textures for colony worlds made by John Dollan and other contributors.



Clickable Location Links

 The easiest way to explore the Orion's Arm Celestia Addons  is to click on a preset Cel:URL link, which will take you to a preset destination within Celestia. Cel:URL links are shown below in red; note they will not work properly until you have downloaded both Celestia and the appropriate addons.

Tip: you can have several different versions of Celestia on your system if you like, each with different sets of addons. If you have more than one version of Celestia these links may open the wrong version. So to ensure the links work correctly open the correct version of Celestia first. If you have only one version of Celestia. opening it first will help speed it up in any case.
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Addon package 4
To download addon package Four, click here. OAAddon4.zip   Extract this file into the folder named 'extras' within Celestia; it will place the addons within the folder named 'oaddons' within the 'extras' folder. All Orions Arm Celestia addons will go into this new folder and the subfolders within it.
Don't forget to close Celestia down and re-open it before clicking on the links below.
Coronus
This addon contains the planets for the nearby triple star, Alpha Centauri A+B and Proxima.
Here is the colourful planet Coronus Cel:URL
Other planets in these systems:
Nessus Eurytion Pholus Caenus
Hippodamia Pirithous
and in Proxima system
Fenris Hati Lif Lifrasir Skoll
click for larger image This is a view of the first ever successful interstellar probe, sent to the Alpha Centauri system. Called the Starwisp, it was based on a concept by Robert Forward
Cel:URL
Click for larger image Also in this package is the addon for the Enigma-Four system; far from the Inner Sphere lies a mysterious planet covered in processing structures of unknown purpose
Cel:URL
click for larger image The Beamrider Station in the Enigma system orbits a large gas giant; this station sends beams of smart particles across space to accelerate or decelerate beamrider craft
Cel:URL
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Addon package 5
To download addon package Five, click here. OAAddon5.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Click for larger image The Space elevator down to Earth is situated above the Indonesian islands; here two cars pass each other at speed
Cel:URL
(note; thanks to Chuft-Captain for the data for this version)
click for larger image Around the twin stars of Gamma Leporis A+B are two Klemperer rosettes, with a total of twenty-one habitable artificial planets
including Love Cel:URL
Also in this system are
Benevolence Grace Friendship Mercy Humility Kindness Respect and Valour
Click for larger image Hope is one of the planets in the Gamma Leporis B rosette Cel:URL
other planets in this system include Justice Charity Faith Fortitude and Prudence, and seven planet-sized computronium nodes
click for larger image The Boomerang Nebula is one of the coldest places in the universe, thanks to the expansion of its gaseous envelope Cel:URL
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Addon package 6
To download addon package Six, click here. OAAddon6.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Click for larger image A very early colony at 61 Virginis (Eostremonath) failed, but the second colony thrives. Here is the terraformed Eostremonath and its two moons
Cel:URL
Click for larger image Mesenti is a gas giant in the 61 Virginis system Cel:URL
other planets in this system include the waterworld
Sarustre and the gas giants  Agraddi and Sanche
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Addon package 7
To download addon package Seven, click here. OAAddon7.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Impossible Dyson The system of 18 Scorpii (Felicidade) has been enclosed in a dyson shell supported by dynamic rings and containing a huge virtual habitat: Cel:URL
This system is now known as the Impossible Dyson.
Click for larger image This Matrioshka Brain is located at Gamma Ophiuchus Cel:URL
The concentric spheres of energy collectors each utilise the waste energy of the spheres closer to the star
Click for larger image One of the most unusual artificial planets yet made, the Hoopworld was a near-stable torus 70,000 km in radius. This construct was destroyed in the Oracle War Cel:URL Click for larger image  The rings of the planet Millennium (Tau Bootes Ab ) are slowly disintegrating and falling into the planet Cel:URL 
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Addon package 8
To download addon package Eight, click here. OAAddon8.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Pacifica Pacifica was the capital of the Virginis Combine, an early minor interstellar empire, later absorbed into the First Federation
Cel:URL  Other worlds in this system include  Adams, Green and New Luna
Click for larger image Aiball oh-one is a world in the Beta Virginis system which has been converted by a Diamond Network entity into computronium
Cel:URL
Click for larger image This wormhole extends between OF-Star-4and the Carina Rush volume  Cel:URL Click for larger image Betelgeuse is the centre of an important volume of civilised space; this star is huge and irregular and only recently has been temporarily stabilised to delay a supernova explosion.  Cel:URL
Other modelled stars
Regulus  Dschubba
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Addon package 9
To download addon package Nine, click here. OAAddon9.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
click for larger image Danzig is a terraformed moon of the fourth world orbiting 55 Cancri. Cel:URL
Other worlds in this system include Bremen  Lubeck  Kiel and Rostock
Atlantis after terraforming Zeta1 Reticuli has many terraformed planets, including Atlantis  Cel:URL
Other terraformed worlds there are Prometheus and Daedalus

The system also includes the gas giants Natasha and Max
Arcadia after Terraforming Arcadia was terraformed very early in the colonial era, with unusual results- the climate alternates between temperate and cold on a regular basis Cel:URL
Other worlds in this system include Daphnis  Smilax  Diana and Pan
Daedalus AfterTerraforming Perhaps confusingly, the fourth world of Pi3 Orionis is also called Daedalus; and early example of many similar homonymous worlds throughout the Terragen Sphere
Cel:URL
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Addon package 11 (there is no package 10 yet)
To download addon package Eleven, click here. OAAddon11.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Nova Terra Nova Terra was the first successful human colony outside the Solar System. Cel:URL
Other worlds in this system include Zeus, Hermes and Poseidon
Click for larger image Ouaddai is a small ringworld which surrounds the white dwarf EG 471
 Cel:URL

click for larger image Rendell Bishop Ring is one of the many open air habitats surrounding the star Arkab Prior B. Cel:URL
Other rings in this system include Frunobulax, Elsirac and Bermoothes
Click for larger image The Xiyoshi dyson spheres surround four of the five stars of XI Scorpii. Here all  four  stars can be seen. Cel:URL

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Addon package 12 
To download addon package Twelve, click here. OAAddon12.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Click for larger image Adam Smith . This Mckendree Cylinder orbits Merrion in the Alpha Mensae system. It has a length of ten thousand kilometers and a vast internal landscape.
Cel:URL
Click for larger image Cableville is a vast topopolis, one of the largest inhabited structures in the Terragen sphere
Cel:URL
Click for larger image Huan Gao is a Smoke Ring habitat, a continuous ring of atmosphere artificially extended around a star. Here is one of the flying inhabitants in the endless sky of that world  Cel:URL click for lager image Penglai was settled mostly by colonists from mainland China Cel:URL
Other worlds in this system include Carp and Turtle
click for larger image Twilight is a tidally locked world with a long history; originally part of the Eridanus League, it is now a NoCoZo world . The habitable zone is confined to the terminator.
Cel:URL
Click for larger image This antimatter drive Dragonfly Class ship stores its dangerous fuel in numerous large Penning Traps
Cel:URL
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Addon package 13
To download addon package Thirteen, click here. OAAddon13.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Click for larger image Rangar in the Etaran system is a large gas giant, surrounded by rings of a mysterious nature, constructed by an unknown alien species   Cel:URL Click for larger image This singleship in the Etaran system.has a lightweight tension design and two opposing sets of motors Cel:URL
Click for larger image This Combat Carrier in Panthalassa orbit carries many hundred combat ISO units Cel:URL Click for larger image This Crescent Class cruiser (style I) orbits Roanoke in the Bolobo system Cel:URL
Click for larger image This is a Halo Drive ship, which uses transapient technology to travel very close to the speed of light without propellant
Cel:URL
Click for larger image The statites surrounding the giant star Sadalmelic can be seen in this image
Cel:URL (requires addons 1,2 and 3)

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Addon package 14
To download addon package Fourteen, click here. OAAddon14.zip   Don't forget to close Celestia down and re-open it before clicking on the links below.
Click for larger image This Banks Orbital is located in the Alpha Aquarii (Sadalmelic) system.. Cel:URL Click for larger image A Solar Moth ship, using collected starlight to heat propellant. Cel:URL
Click for larger image A Mirrorfusion drive vessel, with large radiators to dispel heat Cel:URL

Click for larger image Muuh ice ship leaves Muuhhome
Cel:URL

And Finally;

During testing a number of errors and missing files were found; download this zip file  OAAddons15.zip  into your 'extras' folder to repair them. This will replace some of the files previously downloaded in the folder named 'oaaddons'.

Some more locations which can  be visited in the OA Celestia Universe (once all these addons are installed) include Cronus in the Halcyon system with its strange floating seas, Bright in the Halcyon system with its geostationary ring, Cythera a terraformed world, Solaris. a carbon planet surrounded by a ribbonworld habitat; Anomie, a terraformed moon. NewlifeIII, a planet with many experimental ecosystems...

and this link will activate labels which will display many of the locations in the Terragen Sphere. Try right-clicking and dragging to rotate the image.

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Contribute!

If you want to make some worlds or models of your own, or discuss Celestia and the OA Addons, you can join the Yahoo Group here http://groups.yahoo.com/group/OA-Celestia/

see also
Orion's Arm Addons Page 1