Difference between revisions of "Deneb (system)"
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| − | {{InfoboxSystem | + | The star [[Deneb (star)|Deneb]] (also known as '''Alpha Cygni''' or '''Arided''') is a blue-white spectral class '''A2''' supergiant star with a diameter of approximately 200-300 times that of [[Sol (star)|Sol]], which gives its name to the class of variable stars known as ''Alpha Cygni variables''. |
| + | |||
| + | == Description (Specifications) == | ||
| + | Estimates for [[Deneb (star)|Deneb's]] luminosity range from about 60,000 times the brightness of Sol to 250,000 times Sol's brightness (an [[magnitude|absolute magnitude]] of −8.73). | ||
| + | * The mass of the star is calculated to be 20-25 M<sub>Sol</sub>, meaning that the star will have a short lifespan and will probably become a supernova within a few million years. It has already stopped fusing hydrogen in its core. | ||
| + | * [[Deneb (star)|Deneb]] is the prototype of a class of variable stars known as ''Alpha Cygni variables''. Its surface undergoes non-radial fluctuations, which cause its brightness and spectral type to change slightly. | ||
| + | * [[Deneb (star)|Deneb]] is the 19th brightest star as seen from [[Terra]], it is the 26th brightest star in the galaxy, and one of the brightest in [[Charted Space]]. [[Deneb (star)|Deneb]] is also the 31st largest star in the galaxy. | ||
| + | * From [[Vland (world)|Vland]], [[Deneb (star)|Deneb]] is visible during daylight as a magnitude -4.7 star, as it is for all worlds lying at Vland's distance from [[Deneb (star)|Deneb]] (presuming the world in question has an atmosphere that permits the viewing of stars from the surface). | ||
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| + | ===Deneb Stellar System === | ||
| + | The ''Deneb'' star system lies approximately 432.9pc from [[Terra]], and is located in a Corespinward/Spinward direction from [[Terra]] at bearing 084.3<sup>o</sup> Galactic Longitude and +2.0<sup>o</sup> North Galactic Latitude. | ||
| + | {{InfoboxSystem | ||
|name=Deneb | |name=Deneb | ||
|sector=Deneb|subsector=Usani|hex=1925 | |sector=Deneb|subsector=Usani|hex=1925 | ||
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|P15= - |Dist15=2458|UWP15= <small>(Empty Orbit)</small> | |P15= - |Dist15=2458|UWP15= <small>(Empty Orbit)</small> | ||
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== History & Background (Dossier) == | == History & Background (Dossier) == | ||
Revision as of 23:50, 4 August 2018
| Deneb | |
| |
| Spectral | A2 Ia |
| Type | Supergiant (Alpha Cygni variable) |
| Luminosity | 60,000-250,000 LSol |
| Absolute magnitude | -8.73 |
| Mag Terra | 1.25 (19th) |
| Temperature | 8,400° K |
| Mass | 20-25 MSol |
| Radius | 200-300 RSol |
The star Deneb (also known as Alpha Cygni or Arided) is a blue-white spectral class A2 supergiant star with a diameter of approximately 200-300 times that of Sol, which gives its name to the class of variable stars known as Alpha Cygni variables.
Description (Specifications)
Estimates for Deneb's luminosity range from about 60,000 times the brightness of Sol to 250,000 times Sol's brightness (an absolute magnitude of −8.73).
- The mass of the star is calculated to be 20-25 MSol, meaning that the star will have a short lifespan and will probably become a supernova within a few million years. It has already stopped fusing hydrogen in its core.
- Deneb is the prototype of a class of variable stars known as Alpha Cygni variables. Its surface undergoes non-radial fluctuations, which cause its brightness and spectral type to change slightly.
- Deneb is the 19th brightest star as seen from Terra, it is the 26th brightest star in the galaxy, and one of the brightest in Charted Space. Deneb is also the 31st largest star in the galaxy.
- From Vland, Deneb is visible during daylight as a magnitude -4.7 star, as it is for all worlds lying at Vland's distance from Deneb (presuming the world in question has an atmosphere that permits the viewing of stars from the surface).
Deneb Stellar System
The Deneb star system lies approximately 432.9pc from Terra, and is located in a Corespinward/Spinward direction from Terra at bearing 084.3o Galactic Longitude and +2.0o North Galactic Latitude.
| Deneb System | |||
| Usani/Deneb 1925 | |||
| Position | Distance | Name | UWP |
| Primary | 'Deneb Primary' | 'A2 Ia' | |
| 0 | 0.2 AU | - | (Empty Orbit) |
| 1 | 0.4 AU | - | (Empty Orbit) |
| 2 | 0.7 AU | - | (Empty Orbit) |
| 3 | 1.0 AU | - | (Empty Orbit) |
| 4 | 1.6 AU | - | (Empty Orbit) |
| 5 | 2.0 AU | - | (Empty Orbit) |
| 6 | 5.2 AU | - | (Empty Orbit) |
| 7 | 10 AU | Deneb VII Belt | Y000000-0 |
| 8 | 19.6 AU | - | (Empty Orbit) |
| 9 | 38.8 AU | Deneb IX | Y000000-0 |
| 10 | 77.2 AU | - | (Empty Orbit) |
| 11 | 154 AU | Gashimuu | B660000-B |
| 12 | 307.4 AU | Deneb | B537ADD-C |
| 1 | 12 | Cova | Y100000-0 |
| 2 | 35 | Liye | YS00000-0 |
| 3 | 50 | Shanuasifehaemo | YS00000-0 |
| 13 | 618.4 AU | - | (Empty Orbit) |
| 14 | 1229.2 AU | Deneb XIV | Y000000-0 |
| 15 | 2458 AU | - | (Empty Orbit) |
History & Background (Dossier)
Deneb is the primary star of the world Deneb/Usani (Deneb 1925). It should not be confused with the star Dheneb, which is the proper name for the star Eta Ceti, nor should it be confused with the stars Deneb Algedi (Delta Capricorni) or Deneb Kaitos (Beta Ceti).
Stellar Origin
Deneb spent much of its early life as a 23 MSol O-type main-sequence star, but has since exhausted its supply of hydrogen in its core and has begun to cool and expand.
Gashimuu
Gashimuu, a world orbiting the star Deneb in the life zone, one orbit in from the world Deneb, was settled around -2400 by Vilani fleeing the Rule of Man. Like most such colonies, it regressed technologically, but not as much as many, and it regained jump capability around -80. A lot heavy industry had already been placed on the next world out from Gashimuu, and as the years went by, the population rose until it finally overtook Gashimuu as the system mainworld. Inevitably, it became known as Deneb.
Deneb
Deneb is an average-sized world with a dense atmosphere tainted with the by-products of its extensive industrialization.
Point of Interest: Deneb Moon Structure
Deneb has three natural moons:
- Cova, with a diameter of 1,200 kilometers,
- Liye, with a diameter of 500 kilometers and...
- Shanuasifehaemo, a captured asteroid with a diameter of 17 kilometers.
References & Contributors (Sources)
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This page uses content from Wikipedia. The original article was at Deneb. 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.
- Travellermap (T5SS): [1]
- Classic Traveller Atlas of the Imperium (dotmap only)
- Classic Traveller The Early Adventures in Article: 'Deneb Sector: Library data'
- Periodical: MegaTraveller Journal 3 in Article: 'Domain of Deneb: Sector Data'
- Periodical: MegaTraveller Travellers' Digest No. 19 in Article: 'Data/Library: Deneb'
- Traveller: The New Era The Regency Sourcebook
- Mongoose Traveller: Deneb Sector
- MegaTraveller CD-ROM: Preliminary Traveller Map (Hand-drawn)
- EXTERNAL LINK: SIMBAD @ University of Strasbourg: [2]
- Traveller Wiki Editorial Team
- Author & Contributor: Rimguy
- Author & Contributor: Lord & Chief Marshall (Count) Dan Corrin of the Office of the Emperor
- Author & Contributor: WHULorigan
- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science