🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.8

Radius: 15

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.71 AU - 0.81 AU

Year: 428 Days

Day: 7.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,893,813 km

• M1: 186,698 km (0.1 R)
• M2: 761,603 km (0.044 R)
• M3: 1,543,850 km (0.084 R)
• M4: 2,177,247 km (0.058 R)
• M5: 2,648,780 km (0.063 R)
• M6: 3,292,051 km (0.086 R)
• M7: 4,050,512 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.9

Radius: 10.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.74 AU - 0.86 AU

Year: 462 Days

Day: 10.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,893,813 km

• M1: 129,402 km (0.119 R)
• M2: 475,272 km (0.102 R)
• M3: 1,098,198 km (0.113 R)
• M4: 1,459,926 km (0.084 R)
• M5: 2,112,920 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556

Radius: 12.5

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.7 AU - 3.86 AU

Year: 4745 Days

Day: 10.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,893,813 km

• M1: 155,432 km (0.115 R)
• M2: 653,144 km (0.06 R)
• M3: 1,459,926 km (0.036 R)
• M4: 2,412,565 km (0.065 R)
• M5: 3,337,379 km (0.101 R)
• M6: 5,270,483 km (0.059 R)
• M7: 6,663,987 km (0.085 R)
• M8: 11,383,949 km (0.062 R)
• M9: 16,243,187 km (0.107 R)
• M10: 18,649,619 km (0.087 R)
• M11: 22,334,065 km (0.071 R)
• M12: 26,959,032 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.3

Radius: 14.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.59 AU - 4.31 AU

Year: 5069 Days

Day: 10.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,893,813 km

• M1: 175,329 km (0.107 R)
• M2: 642,672 km (0.114 R)
• M3: 1,242,261 km (0.109 R)
• M4: 2,165,579 km (0.068 R)
• M5: 2,662,393 km (0.067 R)
• M6: 4,104,666 km (0.09 R)
• M7: 5,294,867 km (0.107 R)
• M8: 5,769,990 km (0.063 R)
• M9: 6,305,849 km (0.09 R)
• M10: 7,261,481 km (0.057 R)
• M11: 8,078,435 km (0.052 R)
• M12: 8,629,553 km (0.042 R)
• M13: 11,476,700 km (0.05 R)
• M14: 12,742,597 km (0.119 R)
• M15: 15,852,737 km (0.06 R)
• M16: 17,356,794 km (0.097 R)
• M17: 20,143,503 km (0.071 R)
• M18: 21,012,517 km (0.102 R)
• M19: 21,831,116 km (0.053 R)
• M20: 24,414,672 km (0.116 R)
• M21: 26,417,338 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.2

Radius: 12.7

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.75 AU - 6.17 AU

Year: 7132 Days

Day: 7.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,893,813 km

• M1: 172,187 km (0.076 R)
• M2: 694,433 km (0.117 R)
• M3: 1,780,813 km (0.07 R)
• M4: 2,707,721 km (0.111 R)
• M5: 3,748,324 km (0.105 R)
• M6: 4,223,297 km (0.099 R)
• M7: 5,324,188 km (0.092 R)
• M8: 5,802,602 km (0.112 R)
• M9: 6,441,086 km (0.073 R)
• M10: 7,055,335 km (0.077 R)
• M11: 8,049,712 km (0.088 R)
• M12: 9,261,903 km (0.096 R)
• M13: 9,779,512 km (0.092 R)
• M14: 13,795,018 km (0.109 R)
• M15: 15,466,625 km (0.119 R)
• M16: 16,949,140 km (0.109 R)
• M17: 19,070,587 km (0.049 R)
• M18: 20,123,606 km (0.077 R)
• M19: 20,700,905 km (0.105 R)
• M20: 21,813,165 km (0.064 R)
• M21: 22,886,829 km (0.119 R)
• M22: 23,436,601 km (0.075 R)
• M23: 25,893,746 km (0.118 R)
• M24: 28,789,661 km (0.062 R)
• M25: 29,338,536 km (0.106 R)
• M26: 31,507,406 km (0.087 R)
• M27: 32,482,934 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.3

Radius: 4.7

Gravity: 10.79 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.1 AU - 10.08 AU

Year: 14857 Days

Day: 17.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,893,813 km

• M1: 398,678 km (0.103 R)
• M2: 1,031,029 km (0.111 R)
• M3: 2,036,177 km (0.066 R)
• M4: 2,698,895 km (0.118 R)
• M5: 3,329,450 km (0.078 R)
• M6: 3,617,127 km (0.118 R)
• M7: 3,921,259 km (0.096 R)
• M8: 4,667,902 km (0.112 R)
• M9: 4,845,924 km (0.092 R)
• M10: 5,537,814 km (0.053 R)
• M11: 6,999,385 km (0.036 R)
• M12: 12,041,282 km (0.088 R)
• M13: 15,549,502 km (0.089 R)
• M14: 17,677,980 km (0.117 R)
• M15: 26,225,853 km (0.119 R)
• M16: 29,626,512 km (0.109 R)
• M17: 32,442,393 km (0.052 R)
• M18: 35,889,427 km (0.113 R)
• M19: 38,238,413 km (0.088 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 10,412 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit