Yres (system)

The Yres System is a star system.

• It consists of multiple worlds orbiting a central star.
• Yres is designated the mainworld

Description (Astrography & Planetology)

Stellar Data

Yres has a solitary primary star.

• It is a yellow main sequence.

Yres has a solitary primary star.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	G5 V	Main Sequence (Dwarf)		0.98	5600 - 5660	0.93173
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0091	0.0801	0.91 - 1.63	0.91	9.1
	Orbit #	*	*	3	3	7
	Remarks

System Data

The worlds of the system have been surveyed. They consist of:

• The mainworld.
• x4 secondary rocky worlds.
• x3 planetoid belts.
• x5 gas giants.

System Data

The worlds of the system have been surveyed. They consist of:

• The mainworld.
• x4 secondary rocky worlds.
• x3 planetoid belts.
• x5 gas giants.

Orbit     Name           UPP            Remarks 
Primary   Ellenel        G5 V 
1         Yres           BAC6773 7 
2         Nugget         X200311 B      Mining 
3         Lark's World   XA3A100 B      Research Station 
4         Ballodust      LGG            Large Gas Giant 

Lark's World

Lark's World

Diameter: 15460 miles

Density: 0.68

Mass: 4.9

Mean Surface Gravity: 1.3

Rotation Period: 21 hrs

Orbital Radius: 0.94 AU

Orbital Period: 218 dys

The research station on Lark's World was originally set-up to investigate an abnormality in an otherwise common world. The planet's molten core is roughly a tenth of a percent of what should be expected given its size, age, and orbital radius. Fifty-four Imperial scientists (including a sixteen member team specializing in xeno-archeology) are currently stationed on the world researching the phenomenon.

Nugget

Nugget

Diameter: 2103 miles

Density: 0.13

Mass: 0.0024

Mean Surface Gravity: 0.035

Rotation Period: 14 hrs

Orbital Radius: 0.78 AU

Orbital Period: 165 dys

Nugget, essentially a large ball of ice with a small but dense rocky core, has been leased to Naugrim Enterprises, a sector-wide corporation with 7000 employees positioned locally. According to company spokespeople, Naugrim is conducting a speculative mining operation in order to determine the world's mineral assets, if any.

Yres

Yres

Diameter: 11221 miles

Density: 0.98

Mass: 2.7

Mean Surface Gravity: 1.37

Rotation Period: 6 hrs

Orbital Radius: 0.52 AU

Orbital Period: 89.75 dys

History & Background (Dossier)

No information yet available.

Sources

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. The Spinward Marches (Game Designers Workshop, 1979), 20-21.
• Marc Miller. The Spinward Marches Campaign (Game Designers Workshop, 1985), 18-19.
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), 94-100. (UWP only)
• Marc Miller. MegaTraveller 1: The Zhodani Conspiracy (Paragon Software, 1990), .
• Marc Miller. MegaTraveller 2: Quest for the Ancients (Paragon Software, 1991), .
• Rob Caswell. "Domain of Deneb: Sector Data." MegaTraveller Journal 3 (1992): 47-58. (UWP only)
• Dave Nilsen. The Regency Sourcebook (Game Designers Workshop, 1995), 38. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 79.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 103. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 40-45. (UWP only)
• Gareth Hanrahan. Secrets of the Ancients (Mongoose Publishing, 2010), 255.Gareth Hanrahan. Secrets of the Ancients (Mongoose Publishing, 2021), 255.