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Planetary Record

Planetary Worksheet


Thraeruf Planetary Design




GURPS Space 4th Edition
Thraeruf
Planetary Record
Planet Hex Map
  • One Hex = 555 miles (893 km)
  • World Type: Standard Garden
  • Gravity: 1.0 G
  • Climate Type: Cool
  • Population: 4 billion (PR 9)
  • Habitability Score: 8
  • Resource Value Modifier: 0
  • Diameter: 7,930 mi (12,760 km)
  • Density: 5.5 g/cm^3
  • Axial Tilt: 23°
  • Atmospheric Pressure: 1.0
  • Atmospheric Composition: Standard
  • Hydrographic %: 70%
  • Temperature Range: 40-60 F (4-16 C) (278-289 K)
  • Biosphere:
  • Dominant Life Form: Furries
  • Other Significant Life Forms: None
  • Settlement Type: Homeworld
Major Civilizations
  • Nebularn (Multipolar)
  • Danderian (Empire)
  • Rachis (Diffuse)
  • Keratanic (Empire with rivals)
Great Powers
Name Government
Type		 CR TL Population Modified
Per-Capita
Income		 Typical
Wealth
Level		 Economic
Volume		 Major
Trading
Partners		 Starports
Installations
Notes
Vandalia Representative
Democracy		 CR 2/3 TL 8 300 million
(PR 8)		 ₲46,500
(x1.5)		 Comfortable ₲13.95 trillion
Danderi Peoples
Socialist Union (DPSU)		 Dictatorship CR 5 TL 7 500 million
(PR 8)		 ₲15,000
(x0.6)		 Struggling ₲7.5 trillion None Isolationist
Nebularn Alliance
(NA)		 Representative
Democracy		 CR 3 TL 8 450 million
(PR 8)		 ₲31,000
(x1.0)		 Average ₲13.95 trillion
Greater Kerat
(Kerat)		 Oligarchy CR 4 TL 8 400 million
(PR 8)		 ₲20,000
(x0.65)		 Struggling ₲8.0 trillion
Starports
Installations
Moons
Other Notes

GURPS Space 4th Edition
Thraeruf
Planetary Worksheet
Step 1: Concept
p. 74

The Earth-like homeworld of various furries. Two large continents and numerous large islands.
Step 2: World Type
p. 74-77		 Standard Garden World
Step 3: Atmosphere
p. 78-81
  • Atmospheric Presure: Standard (1.0 atm)
  • Atmospheric Composition: Stardard Earth-Like
  • Atmospheric Mass: 1.0
Step 4: Hydrographic
Coverage
p. 81-82		 Hydrographic Percentage: 70% (14 triangles or 567 hexes)
Step 5: Climate
p. 83-84
  • Average Surface Temperature: 288 K (15 C)(59 F)
  • Climate Type: Cool
  • Temperature Range: 40-60 F (4-16 C) (278-289 K)
  • Blackbody Correction: 1.0208
  • Blackbody Temperature: 282 K
Step 6: World Size
p. 85-87
  • Density: 5.5 g/cm^3 [1.0 Earth Density]
  • Diameter: 7,930 mi (12,760 km) [1.0 Earth Diameter]
  • Surface Gravity: 1.0 G
  • Hex Size: 555 mi (893 km)
Step 7: Resources
and Habitability
p. 87-88
  • Overall Value: Average
  • Resource Value Modifier (RVM): +0
  • Habitability Score: +8
  • Affinity Modifier: 8
Step 8: Settlement Type
p. 89-90		 Homeworld
Step9: Techological Level
p. 90-91
  • Setting TL: --
  • World TL: 8
Step 10: Population
p. 91-93
  • Carrying Capacity: 2.5 billion (to 25 billion)
  • Special Capacity: (Aliens with special needs)
  • Current Population: 4 billion
  • Population Rating: PR 9
Step 11: Society Types
Step 12: Control Ratings
p. 93-95		 Major Civilizations
Great Powers
Name Government Type Control Rating
Step 13: Economics
p. 95-96		 World Averages (TL 8)
  • Base Per-Capita Income: ₲31,000
  • Per-Capita Income: ₲15,500 (After modifiers)
  • Wealth Ratio: 0.5
  • Typical Wealth Level: Struggling
  • Economic Volume: ₲62 trillion
Step 14: Bases
and Installations
p. 96-98
  • Spaceports
  • Installations
Advanced World Building
Step 15: Number of Stars
Step 16: Star Masses
Step 18: Stellar
Characteristics
p. 100-105
# Star Name Mass Type Temp L-Min L-Max M-Span S-Span G-Span
1 the Sun 0.95 G4 V 5,700 0.56 1.3 12 1.8 1.1
# Star Name Current Stage Luminosity Temperature Radius
1 the Sun Main Sequence
Luminosity Class V		 1.0 5,700 0.0048 AU
(409,000 mi)
Step 17: Star System Age
p. 101-102
  • Population: Old Population I
  • Age: 7.1 billion years
Step 19: Companion
Star Orbits
p. 105-106
# Star Name Seperation Radius
Multiplier		 Eccentricity Minimum
Separation		 Maximum
Separation
None
Step 20: Locate
Orbital Zones
p. 106-106
  • Inner Limit Radius: 0.095 AU
  • Outer Limit Radius: 38 AU
  • Snow Line: 4.85 AU

  • Forbidden Orbits
  • Inner Edge: N/A
  • Outer Edge: N/A
Step 21: Placing
First Planets
p. 107-108
  • First Gas Giant Orbital Radius: 5.0 AU
    Convention Gas Giants

  • Pre-Designed World Orbital Radius: 0.97 AU
    (Thraeruf)
Step 22: Place
Planetary Orbits
p. 108-109
  • Inward (5 AU)
  • 3.0 AU
  • 1.7 AU
  • 0.97 AU (Thraeruf)
  • 0.61 AU
  • 0.4 AU
  • Outward (5 AU)
  • 9 AU
  • 15.3 AU
  • 23 AU
  • 38 AU
Step 23: Place Worlds
p. 109-111
# Planet Name Orbital Radius Type Size
1 0.40 AU
2 0.61 AU
3 Thraeruf 0.97 AU Standard Garden Homeworld
4 1.7 AU
5 Asteroid Belt 3.0 AU
6 5.0 AU
7 9.0 AU
8 15.3 AU
9 23.0 AU
10 38.0 AU
Step 24: Place Moons
p. 111-112
# Planet Name Inner Moonlets Rings? Major Moons
(Size Class)		 Outer Moonlets
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 25: World Types
p. 113-114
# Planet Name Blackbody Temperature World Type
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 26: Atmospheres
p. 114 & p. 78-81
# Planet Name Atmospheric
Pressure		 Composition
(Marginal?)		 Corrosive? Suffocating? Toxicity
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 27: Hydrographics
and Climates
p. 114 & p. 81-84
# Planet Name Hydrographic
Coverage %		 Blackbody
Correction		 Avg. Surface
Temperature		 Climate Type
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 29: World Sizes
p. 114-115 & p. 84-87
# Planet or Moon Density Diameter Surface
Gravity		 Mass Atmospheric
Pressure
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 30A: Dynamic Parameters (Planets)
p. 115-119
# Planet Name Orbital
Radius		 Orbital
Period		 Planetary
Eccentricity		 Minimum
Separation		 Maximum
Separation		 Local
Calendar
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 30B: Dynamic Parameters (Moons)
p. 115-119
Planet Moon Name Major
Satellite
Orbit		 Satellite
Orbital
Period		 Tidal Force Exterted
From Planet / On Planet		 Total
Tidal
Effect		 Rotation
Period		 Retro-
grade?		 Axial
Tilt		 Local
Calendar
Thraeruf Luna
Step 31: Geologic Activity
Step 32: Resources
and Habitability
p. 119-121 & p. 87-88
# Planet Name Atmospheric
Pressure		 Composition
(Marginal?)		 Corrosive? Suffocating? Toxicity
1
2
3 Thraeruf
4
5
6
7
8
9
10
Step 33: Settlement Type
Step 34: Technology Level
Step 35: Population
p. 121-122
Planet or Moon Settlement Type TL Carrying Capacity Population (PR)
Step 36: Society Type
Step 37: Control Rating
p. 123 & p. 93-95
Planet or Moon Society Type World Unity Special Conditions Control Rating
Step 38A: Economics
p.123 & p. 95-96
Planet or Moon Base Per-Capita
Income		 Total Income
Modifiers		 Per-Capita
Income		 Typical
Wealth Level		 Economic Volume
Step 38B: Trade Routes
Trade Volume Constant (K):
World One World Two Distance Trade Volume
Trade Routes
Step 39: Bases
and Installations
p. 123 & p. 96-98
Planet or Moon Facility Spaceport Features



GURPS Space 4th Edition