World with an early neogenic ecosystem

36 Ophiuci C
Image from Steve Bowers
Genext, 36 Ophiuchi C, with the distant twin stars A + B (Guniibuu and Clyde) in the distance.
SystemStars: 36 Ophiuchi A, B, C
Distance from Sol: 19.47 ly (J2000 epoch)
Constellation Ophiuchus
Arity Triple. A+B form a close binary, and C is more distant. A+B are very similar is mass and luminosity. Neo-Helix orbits the C Star, Genext.

36 Ophiuchi A, Guniibuu, HR 6402

Type: K1 Ve orange dwarf
Luminosity: 0.33 x Sol
Mass 0.85 x Sol

36 Ophiuchi B, Clyde, HR 6401

Type K1-5 Ve orange dwarf
Luminosity: 0.36 x Sol
Mass 0.85 x Sol
Semimajor axis of B's orbit around A: 88 AU (in a highly eccentric orbit).
Closest approach of B to A: 6.8 AU
The A+B stars approach very closely at periastron, and this has prevented the formation and persistence of any significant orbiting objects around these two stars.

36 Ophiuchi C, Genext, HIP 84478
Type K5V orange dwarf
Luminosity: 0.2 x Sol
Mass 0.71 x Sol
Semimajor axis of C's orbit around A+B: 4500 AU
Only the C star has any significant planets.
Colonised: 1191 AT
Image from Steve Bowers
Neo-helix during the Integration, when the neogen biosphere was mostly concentrated near the seashore. In later eras the project managers took this world in several quite different evolutionary directions, with a diverse range of results.
Semi-major axis 0.0361 AU
Period 0.00814 standard years
Diameter 2797km
Mass 0.009 x Earth
Gravity 0.19 gees
Semi-major axis 0.12 AU
Period 0.0493 standard years
Diameter 3864 KM
Mass0.01 x Earth
Gravity0.118 gees
Semi-major axis 0.461 AU
Period 0.372 standard years
Diameter 7128 km
Mass 0.241 x Earth
Gravity 0.774 gees
Neo-helix has the distinction of possessing the first wholly neogenic ecosystem entirely designed and created by modosophonts, designed by Clan Yall from House Genen. Creating this artificial environment on the planet was a slow process, and took more than a thousand years. Even then the process was not complete, since many of the ecological relationships between species were unstable. Until the late Integration period, the evolution of Heo-Helix's biosphere was allowed to progress with little intervention and many species, genera and families were found to be non-viable, while others became widespread and flourished. Because of the predominant wavelengths emitted by the local star, the photosynthetic lifeforms on this world are generally pale orange in colour.

During the Version War Neo-Helix became largely isolated due to the reduction in non-military travel, and the evolution of the neogen lifeforms on this world began to take some unusual directions. The continental regions and parts of the seas were paved over with an interdependent web of lifeforms, each working with the others to increase the potential for organic growth in each environment.

Later, after the Age of Crisis, the entire nature of this planet's biosphere was changed; the management of the planet was assumed by the Zoeific Biopolity, who re-engineered the planet's environment to increase the stress level, producing an artificial post-apocalyptic scenario which produced many interesting (and sometimes disturbing) results.

In the Current Era the various biomes on this world are somewhat less extreme, but they are still in a state of constant change in response to environmental changes, some of which are allowed to occur naturally and others which are deliberately engineered.

Image from Anders Sandberg
One of the most common artificial organisms on this world is the Thingie, a colonial, photosynthetic auto-heterotroph found on the seashore, which slowly crawls over the landscape and devours other, more sessile organisms
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Development Notes
Text by Todd Drashner
additional material by The Astronomer, Steve Bowers
Initially published on 07 January 2002.