🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.71 AU - 0.87 AU

Year: 323 Days

Day: 31.7 Hours

Environment

Temp: -61 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.97 AU - 1.01 AU

Year: 453 Days

Day: 15.5 Hours

Environment

Temp: -73 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,082,808 km

• M1: 59,839 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.85 AU - 1.29 AU

Year: 509 Days

Day: 12.6 Hours

Environment

Temp: -81 °C

Axial Tilt: 42.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.98 AU - 1.5 AU

Year: 635 Days

Day: 47.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.2 AU - 1.48 AU

Year: 714 Days

Day: 12.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 1.85 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.9

Radius: 12.1

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.34 AU - 2.36 AU

Year: 1658 Days

Day: 7.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,082,808 km

• M1: 150,495 km (0.115 R)
• M2: 654,939 km (0.12 R)
• M3: 1,106,426 km (0.088 R)
• M4: 1,553,125 km (0.104 R)
• M5: 2,204,325 km (0.056 R)
• M6: 2,868,240 km (0.117 R)
• M7: 3,327,954 km (0.059 R)
• M8: 5,407,514 km (0.043 R)
• M9: 5,848,080 km (0.113 R)
• M10: 6,670,270 km (0.109 R)
• M11: 7,177,706 km (0.085 R)
• M12: 7,768,617 km (0.11 R)
• M13: 10,533,336 km (0.051 R)
• M14: 11,148,781 km (0.102 R)
• M15: 12,019,740 km (0.077 R)
• M16: 12,732,424 km (0.073 R)
• M17: 14,417,345 km (0.075 R)
• M18: 14,995,691 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.9

Radius: 11.6

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.67 AU - 2.89 AU

Year: 2133 Days

Day: 7.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,082,808 km

• M1: 144,661 km (0.111 R)
• M2: 544,387 km (0.052 R)
• M3: 956,379 km (0.102 R)
• M4: 1,335,759 km (0.116 R)
• M5: 1,799,662 km (0.101 R)
• M6: 2,198,939 km (0.11 R)
• M7: 2,981,486 km (0.115 R)
• M8: 3,445,089 km (0.103 R)
• M9: 4,149,097 km (0.051 R)
• M10: 4,588,167 km (0.068 R)
• M11: 5,171,000 km (0.053 R)
• M12: 7,316,533 km (0.103 R)
• M13: 8,453,626 km (0.082 R)
• M14: 10,148,570 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.1

Radius: 12

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.45 AU - 10.03 AU

Year: 10885 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,082,808 km

• M1: 151,692 km (0.105 R)
• M2: 551,418 km (0.086 R)
• M3: 1,087,577 km (0.095 R)
• M4: 2,051,585 km (0.102 R)
• M5: 2,446,075 km (0.06 R)
• M6: 4,032,560 km (0.111 R)
• M7: 4,473,425 km (0.056 R)
• M8: 4,881,528 km (0.089 R)
• M9: 5,809,484 km (0.104 R)
• M10: 6,491,052 km (0.097 R)
• M11: 7,612,587 km (0.099 R)
• M12: 8,476,515 km (0.09 R)
• M13: 8,956,724 km (0.109 R)
• M14: 13,351,161 km (0.114 R)
• M15: 14,135,204 km (0.072 R)
• M16: 15,939,354 km (0.062 R)
• M17: 16,896,780 km (0.045 R)
• M18: 17,970,295 km (0.118 R)
• M19: 20,168,486 km (0.077 R)
• M20: 22,906,875 km (0.079 R)
• M21: 23,557,925 km (0.115 R)
• M22: 27,000,022 km (0.058 R)
• M23: 28,041,971 km (0.113 R)
• M24: 30,764,054 km (0.101 R)
• M25: 31,556,773 km (0.086 R)
• M26: 43,420,632 km (0.09 R)
• M27: 45,285,071 km (0.115 R)
• M28: 47,803,102 km (0.091 R)
• M29: 53,603,311 km (0.055 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 16,232 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit