Difference between revisions of "Year"
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A [[Year]] is a unit of time. | A [[Year]] is a unit of time. | ||
* It is a standard [[Third Imperium|Imperial]] [[metric]]. | * It is a standard [[Third Imperium|Imperial]] [[metric]]. | ||
| Line 8: | Line 8: | ||
* The common [[Third Imperium|Imperial]] usage is ''yr''. | * The common [[Third Imperium|Imperial]] usage is ''yr''. | ||
| − | + | The [[Imperial Calendar]] provides a handy reference tool. | |
| + | |||
| + | Larger periods of years may be referred to by different descriptors: | ||
| + | * A decade is 10 years. | ||
| + | * A century is 100 years. | ||
| + | * A millennium is 1000 years. | ||
| + | * A Gyr (gigayear) is 1,000,000,000 years (a billion years). | ||
=== Equivalent Metrics === | === Equivalent Metrics === | ||
| − | Other cultures have different | + | Other interstellar cultures have different values for a year, generally based on the orbital period of their [[homeworld]] around its [[star]]. |
| − | * [[ | + | * [[Chten]] ([[Zhodani]]): 275.2 standard [[Day|day]]s. |
| + | * [[Ftahea]] ([[Aslan]]): 320 standard [[Day|day]]s. | ||
| + | * [[Pim!bigr]] ([[K'kree]]): 440 standard [[Day|day]]s. | ||
| + | * [[Terra (world)|Terran]] year ([[Solomani]]): 365.25 standard [[Day|day]]s. | ||
| + | * [[Vland (world)|Vlandian]]: 478.72 standard [[Day|day]]s, 360 dran-dir (local days). | ||
| + | |||
| + | === Term Usage Example === | ||
| + | Construction times for large [[starship]]s are generally measured in years. | ||
== History & Background ([[Dossier]]) == | == History & Background ([[Dossier]]) == | ||
| − | + | Technologists found the year useful as the concept of the [[Technology Level]] and standardized ideas about [[sophont]] society development began to take form.{{Unpublished cite|author= [[Maksim-Smelchak]]}} | |
| − | + | === Imperial & Solomani Term Usage === | |
| + | The [[Solomani]] define the year as the orbital period of [[Terra (world)|Terra]] around Sol, the [[system]]'s primary [[star]]. It is equal to 365.25 standard [[Day|day]]s. | ||
| − | + | Modern [[Third Imperium|Imperial]] usage bases the year on the orbital period of [[Capital (world)|Capital]] round its [[Star|sun]], which happens to have an almost identical orbital period to that of [[Terra (world)|Terra]] around [[Star|Sol]]. It was broadly adopted within the {{Imperium}} following the [[Solomani Rim War]], in order to avoid the use of specifically Terranocentric [[metric]]s.{{Unpublished cite|author= [[Ade Stewart]] }} | |
| − | == References & Contributors (Sources) == | + | == References & Contributors ([[Sources]]) == |
{{Intermediate}} | {{Intermediate}} | ||
{{Sources | {{Sources | ||
| − | |S1= {{Ludography cite|name= | + | |S1= {{Ludography cite|name=Imperial Encyclopedia}} |
| − | |S2= | + | |S2= {{Ludography cite|name= Fire, Fusion, & Steel|page=5,7}} |
| − | | | + | |S4= {{Ludography cite|name= T5 Core Rules |page= —}} |
| − | | | ||
| − | | | ||
| − | | | ||
| − | |||
}} | }} | ||
| − | |||
| − | |||
{{LEN|Chronology|Metric|Time}} | {{LEN|Chronology|Metric|Time}} | ||
Latest revision as of 09:44, 25 October 2024
A Year is a unit of time.
Description (Specifications)[edit]
An Imperial year (a "standard year") is a frequently used large unit of time. It is used to overcome difficulties caused by having non-uniform local times on each world and system.
The Imperial Calendar provides a handy reference tool.
Larger periods of years may be referred to by different descriptors:
- A decade is 10 years.
- A century is 100 years.
- A millennium is 1000 years.
- A Gyr (gigayear) is 1,000,000,000 years (a billion years).
Equivalent Metrics[edit]
Other interstellar cultures have different values for a year, generally based on the orbital period of their homeworld around its star.
- Chten (Zhodani): 275.2 standard days.
- Ftahea (Aslan): 320 standard days.
- Pim!bigr (K'kree): 440 standard days.
- Terran year (Solomani): 365.25 standard days.
- Vlandian: 478.72 standard days, 360 dran-dir (local days).
Term Usage Example[edit]
Construction times for large starships are generally measured in years.
History & Background (Dossier)[edit]
Technologists found the year useful as the concept of the Technology Level and standardized ideas about sophont society development began to take form.[1]
Imperial & Solomani Term Usage[edit]
The Solomani define the year as the orbital period of Terra around Sol, the system's primary star. It is equal to 365.25 standard days.
Modern Imperial usage bases the year on the orbital period of Capital round its sun, which happens to have an almost identical orbital period to that of Terra around Sol. It was broadly adopted within the Imperium following the Solomani Rim War, in order to avoid the use of specifically Terranocentric metrics.[2]
References & Contributors (Sources)[edit]
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 Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
- Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), .
- Frank Chadwick, Dave Nilsen. Fire, Fusion, & Steel (Game Designers Workshop, 1994), 5,7.
- Marc Miller. T5 Core Rules (Far Future Enterprises, 2013), —.
- ↑ Information provided to the library by Maksim-Smelchak
- ↑ Information provided to the library by Ade Stewart