Difference between revisions of "Block Nebula"
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(Created page with "The Block Nebula is a reflection nebula located in the central part of Yearn Sector, within the Empty Stars. == Block Nebula == The Block Nebula is a large dim g...") |
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== Block Nebula == | == Block Nebula == | ||
| − | The Block Nebula is a large dim group of gases and dark clouds measuring around 9 parsecs coreward-rimward by 6 parsecs spinward-trailing | + | The Block Nebula is a large dim group of gases and dark clouds measuring around 9 parsecs coreward-rimward by 6 parsecs spinward-trailing. Parsec-sized "pockets" of gas and dust are located to spinward-coreward and to rimward-trailing of the nebula. |
* It is classified as a reflection nebula and is primarily formed of ionized gases, thrown off by the [[star]]s at its center many millennia ago. | * It is classified as a reflection nebula and is primarily formed of ionized gases, thrown off by the [[star]]s at its center many millennia ago. | ||
| − | * The gases consist of about 90% hydrogen, with the remainder made up of helium, oxygen, nitrogen, and other elements. The clouds have a mean density of 10<sup>2</sup>–10<sup>6</sup> particles/cm³. | + | * The gases consist of about 90% hydrogen, with the remainder made up of helium, oxygen, nitrogen, and other elements. The clouds have a mean density of 10<sup>2</sup>–10<sup>6</sup> particles/cm³. Its central regions are relatively denser. |
Two separate star systems lie at its core: | Two separate star systems lie at its core: | ||
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}} | }} | ||
Hex Location: 1125 [[Yearn Sector]]. 0 Gas Giants. | Hex Location: 1125 [[Yearn Sector]]. 0 Gas Giants. | ||
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== History == | == History == | ||
Revision as of 15:30, 29 October 2017
The Block Nebula is a reflection nebula located in the central part of Yearn Sector, within the Empty Stars.
Block Nebula
The Block Nebula is a large dim group of gases and dark clouds measuring around 9 parsecs coreward-rimward by 6 parsecs spinward-trailing. Parsec-sized "pockets" of gas and dust are located to spinward-coreward and to rimward-trailing of the nebula.
- It is classified as a reflection nebula and is primarily formed of ionized gases, thrown off by the stars at its center many millennia ago.
- The gases consist of about 90% hydrogen, with the remainder made up of helium, oxygen, nitrogen, and other elements. The clouds have a mean density of 102–106 particles/cm³. Its central regions are relatively denser.
Two separate star systems lie at its core:
| BN1-ab | ||||||
|---|---|---|---|---|---|---|
|
Type | Category | Mass (Sol) | Temperature (K) | Luminosity | |
| A0 IV | Subgiant | 6 | 9000 - 9900 | 156 | ||
| Unit | Diameter | Safe Distance | Habitable Zone | Jump Shadow | M-Drive Limit | |
| AU | 0.04187 | 1.03597 | 9.93 - 16.18 | 4.187 | 41.87 | |
| Orbit # | * | 3 | 7 | 6 | 9 | |
| Remarks | ||||||
| BN1-ab | ||||||
|
Type | Category | Mass (Sol) | Temperature (K) | Luminosity | |
| BD | Brown Dwarf | 0.0276 | 950 - 1250 | 0 | ||
| Unit | Diameter | Safe Distance | Habitable Zone | Jump Shadow | M-Drive Limit | |
| AU | 0.00092 | 0.00038 | 0 - 0.01 | 0.092 | 0.92 | |
| Orbit # | * | * | * | * | 3 | |
| Remarks | ||||||
Hex Location: 1026 Yearn Sector. 0 Gas Giants.
BN2-a has a solitary primary star. BN2-a 
Type Category Mass (Sol) Temperature (K) Luminosity D White Dwarf 0.53 6800 - 6800 0 Unit Diameter Safe Distance Habitable Zone Jump Shadow M-Drive Limit AU 0.00011 0.00168 0 - 0.03 0.011 0.11 Orbit # * * * * 0 Remarks
Hex Location: 1125 Yearn Sector. 0 Gas Giants.
History
The positions and types of the stars present within the Block Nebula have been cataloged as part of the University of Tal Varisa Deep Sky Program.
The nebula is named for its supposed resemblance to a block and tackle.
References & Contributors / Sources
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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.
- Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS
- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science