🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.44 AU - 0.62 AU

Year: 249 Days

Day: 45.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 42.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,092,905 km

• M1: 67,469 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.4

Radius: 14.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.66 AU - 1 AU

Year: 488 Days

Day: 6.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,092,905 km

• M1: 185,352 km (0.053 R)
• M2: 721,810 km (0.098 R)
• M3: 1,203,664 km (0.11 R)
• M4: 1,798,615 km (0.043 R)
• M5: 2,547,951 km (0.066 R)
• M6: 3,214,260 km (0.093 R)
• M7: 3,911,685 km (0.098 R)
• M8: 4,416,578 km (0.114 R)
• M9: 4,900,228 km (0.1 R)
• M10: 5,594,512 km (0.104 R)
• M11: 6,105,837 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.5

Radius: 9.5

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.69 AU - 3.41 AU

Year: 3439 Days

Day: 11.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,092,905 km

• M1: 118,332 km (0.102 R)
• M2: 446,250 km (0.054 R)
• M3: 836,850 km (0.048 R)
• M4: 1,445,415 km (0.065 R)
• M5: 1,867,131 km (0.079 R)
• M6: 2,726,571 km (0.109 R)
• M7: 3,065,709 km (0.066 R)
• M8: 3,394,974 km (0.04 R)
• M9: 4,738,961 km (0.117 R)
• M10: 5,813,373 km (0.086 R)
• M11: 8,296,548 km (0.098 R)
• M12: 9,087,622 km (0.111 R)
• M13: 10,571,034 km (0.062 R)
• M14: 11,543,720 km (0.103 R)
• M15: 12,254,908 km (0.071 R)
• M16: 13,862,636 km (0.073 R)
• M17: 16,255,604 km (0.049 R)
• M18: 16,866,262 km (0.078 R)
• M19: 17,205,700 km (0.111 R)
• M20: 20,088,152 km (0.062 R)
• M21: 21,444,855 km (0.117 R)
• M22: 23,347,590 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.2

Radius: 11.4

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.71 AU - 4.05 AU

Year: 4935 Days

Day: 7.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,092,905 km

• M1: 141,819 km (0.057 R)
• M2: 840,740 km (0.064 R)
• M3: 1,406,220 km (0.102 R)
• M4: 2,858,815 km (0.102 R)
• M5: 3,348,150 km (0.104 R)
• M6: 3,834,044 km (0.058 R)
• M7: 4,650,998 km (0.113 R)
• M8: 5,555,167 km (0.1 R)
• M9: 6,629,579 km (0.076 R)
• M10: 7,337,925 km (0.117 R)
• M11: 7,805,718 km (0.094 R)
• M12: 8,326,617 km (0.075 R)
• M13: 9,730,893 km (0.068 R)
• M14: 10,764,165 km (0.111 R)
• M15: 15,689,825 km (0.106 R)
• M16: 16,362,716 km (0.088 R)
• M17: 16,893,340 km (0.065 R)
• M18: 17,766,243 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.2

Radius: 3

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.06 AU - 7.72 AU

Year: 10430 Days

Day: 23.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,092,905 km

• M1: 37,399 km (0.087 R)
• M2: 149,598 km (0.032 R)
• M3: 346,169 km (0.114 R)
• M4: 455,077 km (0.098 R)
• M5: 943,215 km (0.112 R)
• M6: 1,311,973 km (0.101 R)
• M7: 2,842,509 km (0.088 R)
• M8: 3,691,178 km (0.104 R)
• M9: 5,973,293 km (0.04 R)
• M10: 7,374,577 km (0.114 R)
• M11: 12,221,248 km (0.112 R)
• M12: 16,623,764 km (0.082 R)
• M13: 16,935,975 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.5

Radius: 3.6

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 8.73 AU - 9.39 AU

Year: 17608 Days

Day: 23.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 34,092,905 km

• M1: 47,273 km (0.12 R)
• M2: 227,239 km (0.108 R)
• M3: 422,315 km (0.117 R)
• M4: 910,004 km (0.031 R)
• M5: 1,235,230 km (0.074 R)
• M6: 1,620,145 km (0.094 R)
• M7: 1,783,506 km (0.107 R)
• M8: 1,913,058 km (0.099 R)
• M9: 3,337,379 km (0.118 R)
• M10: 3,786,771 km (0.105 R)
• M11: 4,224,644 km (0.107 R)
• M12: 5,992,143 km (0.115 R)
• M13: 6,251,246 km (0.094 R)
• M14: 6,517,680 km (0.106 R)
• M15: 7,547,213 km (0.069 R)
• M16: 12,966,096 km (0.064 R)
• M17: 13,454,085 km (0.098 R)
• M18: 14,294,226 km (0.107 R)
• M19: 15,893,577 km (0.062 R)
• M20: 22,388,369 km (0.119 R)
• M21: 23,011,144 km (0.108 R)
• M22: 26,644,129 km (0.085 R)
• M23: 28,596,231 km (0.099 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 13,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit