Difference between revisions of "Astronomical Unit"

From Traveller Wiki - Science-Fiction Adventure in the Far future
Jump to navigation Jump to search
Line 9: Line 9:
  
 
== History & Background ([[Dossier]]) ==
 
== History & Background ([[Dossier]]) ==
The Astronomical unit is derived from the average distance between the [[Terra (world)|Terra]] and its [[Star|Sun]]. Because the definition of a [[Parsec]] relies upon the Astronomical unit, the [[AU]] has become a standard unit of measurement within the [[Third Imperium|Imperium]].
+
The [[Solomani]] define the Astronomical Unit to be the distance between [[Terra (world)|Terra]] and Sol, the [[system]]'s primary [[star]].
 +
 
 +
Modern [[Third Imperium|Imperial]] usage bases the [[AU]] on the distance between [[Capital (world)|Capital]] and its [[Star|Sun]], which happens to have an almost identical orbital distance. This was broadly adopted following the [[Solomani Rim War]] to avoid the use of specifically Terranocentric [[metric]]s.{{Unpublished cite|author= Ade Stewart }}
 +
 
 +
Because the definition of a [[Parsec]] relies upon the Astronomical Unit, the [[AU]] has become a standard unit of measurement within the [[Third Imperium|Imperium]]
  
 
== References & Contributors (Sources) ==
 
== References & Contributors (Sources) ==

Revision as of 11:55, 12 February 2019

Imperial Sunburst-Sun-IISS-Traveller.gif

An Astronomical Unit is a unit of measurement of distance, frequently used to measure inter-planetary distances.

Description (Specifications)

One Astronomical Unit is about 150 million kilometers (or, more precisely, 149¨597 870 691 ± 30 meters), or about 93 million miles.

  • The standard abbreviation is (AU).

History & Background (Dossier)

The Solomani define the Astronomical Unit to be the distance between Terra and Sol, the system's primary star.

Modern Imperial usage bases the AU on the distance between Capital and its Sun, which happens to have an almost identical orbital distance. This was broadly adopted following the Solomani Rim War to avoid the use of specifically Terranocentric metrics.[1]

Because the definition of a Parsec relies upon the Astronomical Unit, the AU has become a standard unit of measurement within the Imperium

References & Contributors (Sources)

Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Astronomical_unit. The list of authors can be seen in the page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License.
This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.
  1. Information provided to the library by Ade Stewart