🌌 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: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.77 AU - 0.83 AU

Year: 259 Days

Day: 12.2 Hours

Environment

Temp: 135 °C

Axial Tilt: 28 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 49,029,020 km

• M1: 43,383 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.8 AU - 0.98 AU

Year: 304 Days

Day: 23.3 Hours

Environment

Temp: 139 °C

Axial Tilt: 26.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 49,029,020 km

• M1: 48,919 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.78 AU - 1.2 AU

Year: 356 Days

Day: 29.1 Hours

Environment

Temp: 35 °C

Axial Tilt: 14.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 49,029,020 km

• M1: 750,533 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.59 AU - 2.53 AU

Year: 1069 Days

Day: 44.7 Hours

Environment

Temp: -57 °C

Axial Tilt: 20.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.02 AU - 2.16 AU

Year: 1093 Days

Day: 41.1 Hours

Environment

Temp: -72 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.6

Radius: 14.7

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.04 AU - 8.18 AU

Year: 6146 Days

Day: 5 Hours

Environment

Temp: -150 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,029,020 km

• M1: 182,958 km (0.097 R)
• M2: 708,196 km (0.113 R)
• M3: 1,290,431 km (0.066 R)
• M4: 1,871,469 km (0.043 R)
• M5: 2,771,301 km (0.106 R)
• M6: 3,321,372 km (0.057 R)
• M7: 4,039,741 km (0.08 R)
• M8: 5,758,321 km (0.06 R)
• M9: 6,662,640 km (0.113 R)
• M10: 8,551,463 km (0.081 R)
• M11: 9,468,199 km (0.117 R)
• M12: 9,950,652 km (0.065 R)
• M13: 10,449,411 km (0.095 R)
• M14: 11,156,710 km (0.043 R)
• M15: 11,695,562 km (0.066 R)
• M16: 13,526,639 km (0.106 R)
• M17: 17,423,814 km (0.119 R)
• M18: 18,419,537 km (0.044 R)
• M19: 19,034,983 km (0.101 R)
• M20: 22,320,451 km (0.048 R)
• M21: 28,066,356 km (0.09 R)
• M22: 29,065,370 km (0.092 R)
• M23: 29,713,279 km (0.106 R)
• M24: 30,751,039 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.7

Radius: 12.1

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.91 AU - 8.71 AU

Year: 7893 Days

Day: 5.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,029,020 km

• M1: 157,078 km (0.1 R)
• M2: 560,244 km (0.1 R)
• M3: 1,271,133 km (0.114 R)
• M4: 1,649,167 km (0.08 R)
• M5: 2,033,933 km (0.092 R)
• M6: 2,865,098 km (0.114 R)
• M7: 3,530,061 km (0.095 R)
• M8: 4,509,329 km (0.076 R)
• M9: 8,209,632 km (0.103 R)
• M10: 9,471,939 km (0.072 R)
• M11: 11,036,583 km (0.045 R)
• M12: 12,045,172 km (0.094 R)
• M13: 16,350,598 km (0.106 R)
• M14: 17,660,328 km (0.113 R)
• M15: 20,353,090 km (0.073 R)
• M16: 21,447,248 km (0.072 R)
• M17: 22,942,629 km (0.094 R)
• M18: 23,604,150 km (0.103 R)
• M19: 24,658,666 km (0.112 R)
• M20: 25,665,759 km (0.096 R)
• M21: 26,378,892 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.4

Radius: 13.8

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.62 AU - 9.32 AU

Year: 8915 Days

Day: 14.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,029,020 km

• M1: 183,856 km (0.118 R)
• M2: 713,432 km (0.051 R)
• M3: 1,221,317 km (0.094 R)
• M4: 1,757,625 km (0.074 R)
• M5: 2,338,963 km (0.093 R)
• M6: 2,852,532 km (0.101 R)
• M7: 3,417,264 km (0.112 R)
• M8: 6,614,619 km (0.07 R)
• M9: 7,822,173 km (0.102 R)
• M10: 8,389,299 km (0.081 R)
• M11: 8,844,077 km (0.112 R)
• M12: 10,104,139 km (0.111 R)
• M13: 11,647,541 km (0.103 R)
• M14: 12,388,200 km (0.096 R)
• M15: 13,160,274 km (0.077 R)
• M16: 14,604,492 km (0.034 R)
• M17: 15,738,145 km (0.072 R)
• M18: 16,361,669 km (0.058 R)
• M19: 19,730,014 km (0.113 R)
• M20: 20,948,639 km (0.108 R)
• M21: 24,443,694 km (0.12 R)
• M22: 26,913,405 km (0.092 R)
• M23: 28,310,051 km (0.066 R)
• M24: 31,247,704 km (0.113 R)
• M25: 36,145,987 km (0.052 R)
• M26: 45,734,762 km (0.069 R)
• M27: 49,029,057 km (0.114 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 364 - 16,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit