Orbit

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• Orbit

Description / Specifications

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Orbital Definitions

Each orbit should be understood as a generalized band into which an astronomic object such as a planet, belt, or related object may occupy. There are no set distances for each orbit or band, which are determined by the star or stars centered the system.Orbital bands are typically measured in AU or Astronomical Units and the distance between bands is variable.

Orbits:

• Orbit 0 represent an orbit extremely close to the sun and quite dangerous due to solar flares and the like. Only a Twilight Zone World could exist in that orbit and even that is not likely to be safe within the time spans of stars. they might be safe for settlement or mining within the time spans of sophonts, although only with very good technology or an unconventional lifeform suited to the extreme heat. Possibly under other rare conditions.
• Orbits 1 to 6 represent the inner worlds of a system.
• Symbolic orbit 6.5 HZ, the Habitable Zone is the Goldilocks area where conventional life has the greatest odds of developing.
• Orbits 7 to 12 represent the outer worlds of a system.
• Orbits 13 to 144 represent the remote system of Kuiper Belts and Trans-Neptunian Objects.
• Orbits 145 to the edge of an astrographic hex or parsec represent the far system where Oort Clouds and the Hill Sphere is located.

Star System Locations

Includes the mainworld, satellites, and all other worlds within a system. In the case of polystellar systems, it may include all stars and their associated worlds.

Star System Locations

Type	World Band	Orbit	Estimated Distance	Location/s	Solar Region	Grav. Relationship	Remarks
Star	Very Rare	0 (zero)	Center (zero)	Star	Star	Source	Astronomic but not astrographic centerpoint.
Inner System	Inner Zone	1 to 6	Up to 42 Light Minutes	HZ Neg	Heliosphere	Significant gravity	Warmer Worlds
HZ	Goldilocks Zone	Variable (Orbit 6.5 Symbolically)	Variable	HZ	Heliosphere	Significant gravity	Just right. Goldilocks Zone. Liquid water. Ideal environment for conventional life.
Outer System	Outer Zone	7 to 12	Up to 42 Light Hours	HZ Plus	Heliosphere	Significant gravity	Colder worlds.
Remote System	Rogue Worlds	13 to 144	Up to 2 Light Weeks	Remote System	Heliosphere to Heliopause to Interstellar Medium	Insignificant gravity	Kuiper Belt. Trans-Neptunian Objects.
Far System	Rogue Worlds	Orbit 145 to (3.27 parsecs)	To limits of an area of a one Parsec volumetric cube	Far System	Interstellar Medium	Very weak gravity	Oort Cloud/s. Hill Sphere.

History & Background / Dossier

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References & Contributors / Sources

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• Traveller Wiki Editorial Team
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science