🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.8

Radius: 11.6

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.57 AU - 0.85 AU

Year: 380 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 8,396,760 km

• M1: 144,362 km (0.068 R)
• M2: 511,326 km (0.065 R)
• M3: 964,457 km (0.089 R)
• M4: 1,437,037 km (0.069 R)
• M5: 1,997,132 km (0.034 R)
• M6: 2,843,706 km (0.094 R)
• M7: 3,414,721 km (0.03 R)
• M8: 3,915,275 km (0.088 R)
• M9: 4,521,895 km (0.069 R)
• M10: 4,986,247 km (0.045 R)
• M11: 5,582,245 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.9

Radius: 9.1

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.08 AU - 1.12 AU

Year: 734 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 8,396,760 km

• M1: 115,639 km (0.112 R)
• M2: 400,473 km (0.115 R)
• M3: 745,895 km (0.099 R)
• M4: 1,037,760 km (0.107 R)
• M5: 1,451,548 km (0.078 R)
• M6: 1,806,245 km (0.026 R)
• M7: 2,331,184 km (0.079 R)
• M8: 2,781,772 km (0.053 R)
• M9: 3,345,756 km (0.056 R)
• M10: 3,820,430 km (0.083 R)
• M11: 4,339,385 km (0.106 R)
• M12: 4,630,353 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 12.1

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.03 AU - 1.37 AU

Year: 836 Days

Day: 9.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 8,396,760 km

• M1: 151,094 km (0.059 R)
• M2: 561,142 km (0.049 R)
• M3: 1,232,537 km (0.069 R)
• M4: 1,753,586 km (0.064 R)
• M5: 2,243,669 km (0.11 R)
• M6: 2,994,201 km (0.082 R)
• M7: 3,422,051 km (0.086 R)
• M8: 3,950,431 km (0.086 R)
• M9: 5,226,351 km (0.089 R)
• M10: 7,548,858 km (0.074 R)
• M11: 8,651,993 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.7

Radius: 10.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2 AU - 2.48 AU

Year: 2132 Days

Day: 7.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 8,396,760 km

• M1: 128,355 km (0.097 R)
• M2: 529,726 km (0.066 R)
• M3: 922,121 km (0.081 R)
• M4: 1,315,863 km (0.069 R)
• M5: 1,636,601 km (0.117 R)
• M6: 2,010,446 km (0.094 R)
• M7: 2,337,616 km (0.065 R)
• M8: 3,390,636 km (0.077 R)
• M9: 4,329,811 km (0.084 R)
• M10: 5,388,216 km (0.099 R)
• M11: 5,856,906 km (0.027 R)
• M12: 6,429,268 km (0.106 R)
• M13: 7,148,534 km (0.068 R)
• M14: 7,773,554 km (0.096 R)
• M15: 8,342,176 km (0.107 R)
• M16: 8,874,295 km (0.119 R)
• M17: 9,731,940 km (0.112 R)
• M18: 10,972,256 km (0.082 R)
• M19: 12,156,473 km (0.099 R)
• M20: 14,111,268 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 8.7

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.32 AU - 2.7 AU

Year: 2528 Days

Day: 5.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 8,396,760 km

• M1: 111,301 km (0.102 R)
• M2: 539,001 km (0.062 R)
• M3: 891,155 km (0.119 R)
• M4: 1,583,493 km (0.102 R)
• M5: 1,882,540 km (0.088 R)
• M6: 2,669,724 km (0.071 R)
• M7: 4,935,683 km (0.102 R)
• M8: 5,281,254 km (0.111 R)
• M9: 6,416,253 km (0.105 R)
• M10: 7,089,144 km (0.103 R)
• M11: 8,439,265 km (0.063 R)
• M12: 10,135,405 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.6

Radius: 13

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.69 AU - 3.11 AU

Year: 3140 Days

Day: 14.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 8,396,760 km

• M1: 163,361 km (0.077 R)
• M2: 1,713,045 km (0.089 R)
• M3: 2,299,020 km (0.116 R)
• M4: 2,806,905 km (0.108 R)
• M5: 3,266,918 km (0.115 R)
• M6: 3,999,649 km (0.108 R)
• M7: 4,623,771 km (0.1 R)
• M8: 5,206,903 km (0.113 R)
• M9: 6,793,688 km (0.037 R)
• M10: 7,229,915 km (0.109 R)
• M11: 10,089,329 km (0.048 R)
• M12: 12,841,930 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258

Radius: 9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.89 AU - 3.03 AU

Year: 3238 Days

Day: 14.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 8,396,760 km

• M1: 111,899 km (0.077 R)
• M2: 438,172 km (0.086 R)
• M3: 726,896 km (0.042 R)
• M4: 1,356,404 km (0.071 R)
• M5: 1,871,320 km (0.109 R)
• M6: 3,307,609 km (0.081 R)
• M7: 3,683,997 km (0.087 R)
• M8: 4,012,963 km (0.117 R)
• M9: 4,301,986 km (0.119 R)
• M10: 4,709,191 km (0.107 R)
• M11: 5,141,978 km (0.071 R)
• M12: 5,553,971 km (0.102 R)
• M13: 5,864,985 km (0.102 R)
• M14: 7,227,971 km (0.087 R)
• M15: 7,628,594 km (0.082 R)
• M16: 8,318,838 km (0.09 R)
• M17: 8,695,077 km (0.083 R)
• M18: 8,984,699 km (0.106 R)
• M19: 10,244,013 km (0.033 R)
• M20: 10,676,650 km (0.067 R)
• M21: 12,048,164 km (0.074 R)
• M22: 13,792,325 km (0.052 R)
• M23: 14,454,146 km (0.088 R)
• M24: 14,770,097 km (0.043 R)
• M25: 15,793,496 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.6

Radius: 8.9

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.08 AU - 4.52 AU

Year: 4710 Days

Day: 10.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 8,396,760 km

• M1: 110,702 km (0.118 R)
• M2: 537,206 km (0.118 R)
• M3: 1,021,305 km (0.07 R)
• M4: 1,847,384 km (0.107 R)
• M5: 2,471,357 km (0.064 R)
• M6: 3,662,605 km (0.066 R)
• M7: 4,321,434 km (0.101 R)
• M8: 6,111,073 km (0.091 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 17,241 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit