Difference between revisions of "Myrhan (world)"
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|secondary = M5 VI | |secondary = M5 VI | ||
|PrimaryNotes = | |PrimaryNotes = | ||
| − | |SecondaryNotes = | + | |SecondaryNotes = 3.1 AU from primary |
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=== System Data === | === System Data === | ||
| − | |||
==== Wantan-Myrhan System ==== | ==== Wantan-Myrhan System ==== | ||
| − | The primary is Wantan, an ordinary red main sequence star. It has a luminosity of 0.334 Sols, a mass of 0.457 Sols and a diameter of 711,000 km. (I-I) Myrhan, designated the [[mainworld]], and (I-II) Suran, a thin atmosphere hospitable world, have a shared orbit within the [[habitable zone]]. Neither world retains | + | The primary is Wantan, an ordinary red main sequence [[star]]. It has a luminosity of 0.334 Sols, a mass of 0.457 Sols and a diameter of 711,000 km. (I-I) Myrhan, designated the [[mainworld]], and (I-II) Suran, a [[thin atmosphere]] [[hospitable world]], have a shared orbit within the [[habitable zone]]. Neither world retains [[satellite]]s. |
| + | * The [[star]] experiences periodic flare activity. | ||
==== Kombu Subsystem ==== | ==== Kombu Subsystem ==== | ||
| − | The companion is Kombu, a red subdwarf star that orbits Wantan at a mean separation of 3.1 AU | + | The companion is Kombu, a red subdwarf [[star]] that orbits Wantan at a mean separation of 3.1 AU (463.8 million km). It has a luminosity of 0.002 Sols, a mass of 0.104 Sols and a diameter of 145,000 km. (I) a dense stony [[planetoid belt]] forms the outer system. |
| + | * The two [[star]]s orbit a barycenter located at around 0.70 AU (orbital position (III), 104.7 million km). They have an orbital period around one another of 8 years 27 days. | ||
=== Mainworld Data === | === Mainworld Data === | ||
| − | |||
==== (I-I) Myrhan ==== | ==== (I-I) Myrhan ==== | ||
| − | (I-I) Myrhan is designated the [[mainworld]]. It orbits Wantan at a mean distance of 0.13 AU (19.5 million km), within the [[habitable zone]]. It has an orbital period of 25 days 8 hours: it is [[tidally locked]] to Wantan. The axial tilt is 4 degrees. Myrhan has a diameter of 8,633 km, a density of 5.98 g/cm³, and a surface gravity of 0.79 G. Tidal stresses cause regular geological activity | + | (I-I) Myrhan is designated the [[mainworld]]. It orbits Wantan at a mean distance of 0.13 AU (19.5 million km), within the [[habitable zone]]. It has an orbital period of 25 days 8 hours: it is [[tidally locked]] to Wantan. The axial tilt is 4 degrees. Myrhan has a diameter of 8,633 km, a density of 5.98 g/cm³, and a surface gravity of 0.79 G. Tidal stresses generated by the gravitational pull of Wantan cause regular geological activity. Its atmosphere is rated as [[Very thin atmosphere|Very Thin]], [[Tainted atmosphere|Tainted]], with a mean surface pressure of 0.25 bar and a composition of 82% nitrogen (N<sub><small>2</small></sub>), 16% oxygen (O<sub><small>2</small></sub>), 1% carbon dioxide (CO<sub><small>2</small></sub>), and 1% argon (Ar), water vapor (H<sub><small>2</small></sub>O), carbon monoxide (CO), ozone (O<sub><small>3</small></sub>), neon (Ne) and other trace gases. The taint is caused by a combination of the low percentage of atmospheric oxygen, gases of volcanic origin, and relatively high levels of background radiation: emission rates exceed 1 rad per hour. Approximately 34% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.5m. Mean surface temperature: 18°C. The [[Fringian_Variant_System_Description#Planetary_Climate|climate]] is rated as Temperate-Prime and is static, with no seasonal changes during the local year. The atmosphere is sluggish and weak weather systems, driven by the star and the seas, sweep across the globe. |
| − | ==== Mainworld | + | ==== Mainworld Geography and Topography ==== |
Total surface area: 234 million km², Land surface area: 154 km², Water surface area: 80 million km². Myrhan's bright face is a hot stony desert bathed in the unending glare of the star. Towards the sub-bright and temperate rings the climate becomes cooler and wetter, eventually giving way to the iceberg-littered Loop Sea. The waters give way to glacier fields and arid coldlands. The dark face is permanently crusted with ice, frost and snow. Despite its strong magnetosphere, charged particles streaming off of the star are gradually stripping away Myrhan's atmosphere. Predictions suggest that it will have been reduced to a rating of Trace within a few tens of millions of years. Aurora are visible in the skies at all times. | Total surface area: 234 million km², Land surface area: 154 km², Water surface area: 80 million km². Myrhan's bright face is a hot stony desert bathed in the unending glare of the star. Towards the sub-bright and temperate rings the climate becomes cooler and wetter, eventually giving way to the iceberg-littered Loop Sea. The waters give way to glacier fields and arid coldlands. The dark face is permanently crusted with ice, frost and snow. Despite its strong magnetosphere, charged particles streaming off of the star are gradually stripping away Myrhan's atmosphere. Predictions suggest that it will have been reduced to a rating of Trace within a few tens of millions of years. Aurora are visible in the skies at all times. | ||
| + | * Myrhan is a [[Twilight Zone World]]. | ||
| + | * The world experiences libration, which causes the star to move in the sky and periodically rise and fall above the horizon in the [[Twilight Zone World|twilight]] region. | ||
=== Secondary World Data === | === Secondary World Data === | ||
| − | |||
==== (I-II) Suran ==== | ==== (I-II) Suran ==== | ||
| − | (I-II) Suran (UWP Y534000-0) is designated a | + | (I-II) Suran ([[UWP]] Y534000-0) is designated a [[hospitable world]]. It orbits Wantan at a mean distance of 0.17 AU (25.4 million km), within the [[habitable zone]]. It has an orbital period of 37 days 21 hours: it is [[tidally locked]] to Wantan. The axial tilt is 3 degrees relative to Wantan. Suran has a diameter of 7,792 km, a density of 4.53 g/cm³, and a surface gravity of 0.50 G. Tidal stresses generated by the gravitational pull of Wantan cause frequent geological activity. Its atmosphere is rated as [[Thin atmosphere|Thin]], [[Tainted atmosphere|Tainted]], with a mean surface pressure of 0.43 bar and a composition of 84% nitrogen (N<sub><small>2</small></sub>), 15% oxygen (O<sub><small>2</small></sub>), and 1% argon (Ar), water vapor (H<sub><small>2</small></sub>O), carbon dioxide (CO<sub><small>2</small></sub>), ozone (O<sub><small>3</small></sub>), neon (Ne) and other trace gases. The [[Tainted atmosphere|taint]] is caused by the low percentage of atmospheric oxygen. Approximately 43% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.3m. Mean surface temperature: 16°C. The [[Fringian_Variant_System_Description#Planetary_Climate|climate]] is rated as Temperate-Prime and is static, with no seasonal changes during the local year. The atmosphere is slow and weak weather systems driven by the star and the seas drift across the globe. |
| − | ==== Geography and topography ==== | + | ==== Secondary World Geography and topography ==== |
Total surface area: 191 million km², Land surface area: 109 million km², Water surface area: 82 million km². | Total surface area: 191 million km², Land surface area: 109 million km², Water surface area: 82 million km². | ||
| + | * Suran is a [[Twilight Zone World]]. | ||
| + | * The world experiences libration, which causes the star to move in the sky and periodically rise and fall above the horizon in the [[Twilight Zone World|twilight]] region. | ||
=== Native Lifeforms === | === Native Lifeforms === | ||
| + | ==== Wantan-Myrhan System ==== | ||
Myrhan has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal. The largest recorded lifeforms are primitive worms measuring millimeters in length inhabit the Loop Sea. A number of varieties of hardy offworld flora have been introduced, both accidentally and purposefully, and in some areas they are thriving, despite the harsh, marginal conditions. | Myrhan has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal. The largest recorded lifeforms are primitive worms measuring millimeters in length inhabit the Loop Sea. A number of varieties of hardy offworld flora have been introduced, both accidentally and purposefully, and in some areas they are thriving, despite the harsh, marginal conditions. | ||
Suran has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal. | Suran has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal. | ||
| + | |||
| + | ==== Kombu Subsystem ==== | ||
| + | No native life is known to exist within the [[system|subsystem]]. | ||
== History & Background (Dossier) == | == History & Background (Dossier) == | ||
Revision as of 08:30, 18 August 2018
This is a world-system under construction and is currently being input-programmed into the Traveller RPG Wiki.
| Myrhan/Genesti (Far Home 0408) | |||||||||||||||||||||||||
| Classic Era (1116) | E523534-7
| ||||||||||||||||||||||||
| See also | UWP | ||||||||||||||||||||||||
| System Details | |||||||||||||||||||||||||
| Primary | M1 V M5 VI | ||||||||||||||||||||||||
| Planetoid Belts | 1 | ||||||||||||||||||||||||
| Gas Giants | 0 | ||||||||||||||||||||||||
Myrhan is a poor, nonindustrial world.
- As a nonindustrial world, it requires extensive imports of outside technology to maintain a modern, star-faring society. The need to import most manufactured and high technology goods drives the price of these goods up in the open market.
- This world has few prospects for economic development.
- It is a Non-Aligned world dominated by human sophonts located in the Genesti Subsector of Far Home Sector.
Astrography and Planetology
This star system is detailed using the Fringian Variant System Description.
Binary Solar System
Myrhan Binary Star System Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Myrhan M1 V
Primary Main Sequence 0.5 3620 - 3660 0.08839 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.0023 0.0247 0.31 - 0.59 0.23 2.3 Orbit # * * 1 0 5 Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol) Myrhan M5 VI
Secondary Main Sequence 0.104 2000 - 2900 0.002 Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit AU 0.00097 0.00371 0.04 - 0.06 0.097 0.97 Orbit # * * * * 3 Remarks 3.1 AU from primary
System Data
Wantan-Myrhan System
The primary is Wantan, an ordinary red main sequence star. It has a luminosity of 0.334 Sols, a mass of 0.457 Sols and a diameter of 711,000 km. (I-I) Myrhan, designated the mainworld, and (I-II) Suran, a thin atmosphere hospitable world, have a shared orbit within the habitable zone. Neither world retains satellites.
- The star experiences periodic flare activity.
Kombu Subsystem
The companion is Kombu, a red subdwarf star that orbits Wantan at a mean separation of 3.1 AU (463.8 million km). It has a luminosity of 0.002 Sols, a mass of 0.104 Sols and a diameter of 145,000 km. (I) a dense stony planetoid belt forms the outer system.
- The two stars orbit a barycenter located at around 0.70 AU (orbital position (III), 104.7 million km). They have an orbital period around one another of 8 years 27 days.
Mainworld Data
(I-I) Myrhan
(I-I) Myrhan is designated the mainworld. It orbits Wantan at a mean distance of 0.13 AU (19.5 million km), within the habitable zone. It has an orbital period of 25 days 8 hours: it is tidally locked to Wantan. The axial tilt is 4 degrees. Myrhan has a diameter of 8,633 km, a density of 5.98 g/cm³, and a surface gravity of 0.79 G. Tidal stresses generated by the gravitational pull of Wantan cause regular geological activity. Its atmosphere is rated as Very Thin, Tainted, with a mean surface pressure of 0.25 bar and a composition of 82% nitrogen (N2), 16% oxygen (O2), 1% carbon dioxide (CO2), and 1% argon (Ar), water vapor (H2O), carbon monoxide (CO), ozone (O3), neon (Ne) and other trace gases. The taint is caused by a combination of the low percentage of atmospheric oxygen, gases of volcanic origin, and relatively high levels of background radiation: emission rates exceed 1 rad per hour. Approximately 34% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.5m. Mean surface temperature: 18°C. The climate is rated as Temperate-Prime and is static, with no seasonal changes during the local year. The atmosphere is sluggish and weak weather systems, driven by the star and the seas, sweep across the globe.
Mainworld Geography and Topography
Total surface area: 234 million km², Land surface area: 154 km², Water surface area: 80 million km². Myrhan's bright face is a hot stony desert bathed in the unending glare of the star. Towards the sub-bright and temperate rings the climate becomes cooler and wetter, eventually giving way to the iceberg-littered Loop Sea. The waters give way to glacier fields and arid coldlands. The dark face is permanently crusted with ice, frost and snow. Despite its strong magnetosphere, charged particles streaming off of the star are gradually stripping away Myrhan's atmosphere. Predictions suggest that it will have been reduced to a rating of Trace within a few tens of millions of years. Aurora are visible in the skies at all times.
- Myrhan is a Twilight Zone World.
- The world experiences libration, which causes the star to move in the sky and periodically rise and fall above the horizon in the twilight region.
Secondary World Data
(I-II) Suran
(I-II) Suran (UWP Y534000-0) is designated a hospitable world. It orbits Wantan at a mean distance of 0.17 AU (25.4 million km), within the habitable zone. It has an orbital period of 37 days 21 hours: it is tidally locked to Wantan. The axial tilt is 3 degrees relative to Wantan. Suran has a diameter of 7,792 km, a density of 4.53 g/cm³, and a surface gravity of 0.50 G. Tidal stresses generated by the gravitational pull of Wantan cause frequent geological activity. Its atmosphere is rated as Thin, Tainted, with a mean surface pressure of 0.43 bar and a composition of 84% nitrogen (N2), 15% oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), ozone (O3), neon (Ne) and other trace gases. The taint is caused by the low percentage of atmospheric oxygen. Approximately 43% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.3m. Mean surface temperature: 16°C. The climate is rated as Temperate-Prime and is static, with no seasonal changes during the local year. The atmosphere is slow and weak weather systems driven by the star and the seas drift across the globe.
Secondary World Geography and topography
Total surface area: 191 million km², Land surface area: 109 million km², Water surface area: 82 million km².
- Suran is a Twilight Zone World.
- The world experiences libration, which causes the star to move in the sky and periodically rise and fall above the horizon in the twilight region.
Native Lifeforms
Wantan-Myrhan System
Myrhan has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal. The largest recorded lifeforms are primitive worms measuring millimeters in length inhabit the Loop Sea. A number of varieties of hardy offworld flora have been introduced, both accidentally and purposefully, and in some areas they are thriving, despite the harsh, marginal conditions.
Suran has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find shelter and nutrition. Their metabolic functions maintain the process of atmospheric renewal.
Kombu Subsystem
No native life is known to exist within the subsystem.
History & Background (Dossier)
No information yet available.
World starport
Myrhan has a Class E Starport, a frontier quality installation with few expected amenities. There is unrefined fuel for starships and a limited variety of ship provisions. There is no shipyard of any kind, but there may be parts and technical support for doing minor services and repair. Ports of this classification generally consist of a downport.
World technology level
Myrhan possesses a Technology Level of TL–7.
- Common Communication technologies for this TL include: Early video and early satellite communication networks.
- Common Power Generation technologies for this TL include: Early fuel cells, solar energy, and geothermal power sources.
- Common Transportation technologies for this TL include:
- Land: Improved automobiles, hovercraft, and bullet trains.
- Water: Hydrofoils and early triphibians.
- Air: Hang gliders and supersonic jets.
- Space: Deep space probes and interplanetary spacecraft (System Craft).
World government
Myrhan is governed by Self-Perpetuating Oligarchy. A single family or small group provides the leadership and important positions in the government. These positions are inherited by member of the group or their family members. The organization may be monarchy, with titles passed to family members. Or a plutocracy where inheritance of the family fortune includes government position. Or the organization may be more typical organization with positions of power inherited.
World military
No information yet available.
World economy
No information yet available.
Trade data
No information yet available.
World demographics
Population: 30,000
World culture
No information yet available.
Historical data
No information yet available.
World timeline
No information yet available.
UWP listing
No information yet available.
References & Contributors / Sources
|
This article is missing content for one or more detailed sections. Additional details are required to complete the article. You can help the Traveller Wiki by expanding it. |
- 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
- ↑ "Jump Map API" and map location from Travellermap.com