🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.7

Radius: 10.4

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.48 AU - 0.74 AU

Year: 335 Days

Day: 14.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,019,323 km

• M1: 129,402 km (0.058 R)
• M2: 468,241 km (0.053 R)
• M3: 798,404 km (0.118 R)
• M4: 1,334,413 km (0.084 R)
• M5: 1,682,378 km (0.101 R)
• M6: 2,691,864 km (0.101 R)
• M7: 3,473,064 km (0.12 R)
• M8: 3,860,373 km (0.066 R)
• M9: 4,565,727 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.3

Radius: 14.7

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.62 AU - 0.68 AU

Year: 368 Days

Day: 9.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 75,019,323 km

• M1: 182,809 km (0.107 R)
• M2: 680,371 km (0.115 R)
• M3: 1,210,247 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.7

Radius: 12.8

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.65 AU - 0.87 AU

Year: 466 Days

Day: 6.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,019,323 km

• M1: 159,471 km (0.117 R)
• M2: 559,646 km (0.071 R)
• M3: 1,005,896 km (0.087 R)
• M4: 1,426,864 km (0.055 R)
• M5: 1,878,351 km (0.096 R)
• M6: 2,368,583 km (0.068 R)
• M7: 2,900,104 km (0.104 R)
• M8: 3,767,772 km (0.087 R)
• M9: 4,467,142 km (0.072 R)
• M10: 5,055,211 km (0.095 R)
• M11: 5,800,209 km (0.09 R)
• M12: 6,617,312 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.7

Radius: 13.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.23 AU - 3.31 AU

Year: 3241 Days

Day: 12.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,019,323 km

• M1: 162,912 km (0.112 R)
• M2: 670,797 km (0.101 R)
• M3: 1,137,243 km (0.108 R)
• M4: 1,674,748 km (0.106 R)
• M5: 2,380,850 km (0.039 R)
• M6: 3,278,288 km (0.102 R)
• M7: 3,834,343 km (0.111 R)
• M8: 6,578,118 km (0.081 R)
• M9: 7,770,861 km (0.106 R)
• M10: 8,899,129 km (0.101 R)
• M11: 9,950,652 km (0.091 R)
• M12: 10,696,547 km (0.04 R)
• M13: 11,721,592 km (0.109 R)
• M14: 12,511,319 km (0.072 R)
• M15: 15,532,747 km (0.112 R)
• M16: 16,434,672 km (0.097 R)
• M17: 18,397,995 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.8

Radius: 14.3

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.43 AU - 3.59 AU

Year: 3671 Days

Day: 7.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,019,323 km

• M1: 177,872 km (0.095 R)
• M2: 703,409 km (0.052 R)
• M3: 1,213,388 km (0.066 R)
• M4: 1,951,504 km (0.041 R)
• M5: 2,456,247 km (0.104 R)
• M6: 3,429,232 km (0.058 R)
• M7: 4,429,144 km (0.086 R)
• M8: 5,532,279 km (0.086 R)
• M9: 7,004,472 km (0.068 R)
• M10: 8,279,195 km (0.036 R)
• M11: 9,785,047 km (0.047 R)
• M12: 10,367,880 km (0.047 R)
• M13: 11,974,113 km (0.049 R)
• M14: 13,536,363 km (0.099 R)
• M15: 16,417,170 km (0.031 R)
• M16: 18,155,646 km (0.118 R)
• M17: 19,294,834 km (0.072 R)
• M18: 20,213,365 km (0.08 R)
• M19: 21,160,768 km (0.093 R)
• M20: 22,279,611 km (0.073 R)
• M21: 24,256,696 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.5

Radius: 13.4

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.35 AU - 3.95 AU

Year: 4902 Days

Day: 7.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,019,323 km

• M1: 166,652 km (0.11 R)
• M2: 613,650 km (0.115 R)
• M3: 1,073,215 km (0.095 R)
• M4: 2,189,066 km (0.115 R)
• M5: 2,744,074 km (0.111 R)
• M6: 3,564,319 km (0.062 R)
• M7: 4,646,659 km (0.106 R)
• M8: 5,937,539 km (0.107 R)
• M9: 6,683,734 km (0.046 R)
• M10: 8,207,388 km (0.049 R)
• M11: 8,682,511 km (0.064 R)
• M12: 10,584,648 km (0.055 R)
• M13: 11,292,545 km (0.036 R)
• M14: 12,336,588 km (0.108 R)
• M15: 13,174,336 km (0.111 R)
• M16: 14,559,014 km (0.068 R)
• M17: 15,614,577 km (0.116 R)
• M18: 16,973,225 km (0.094 R)
• M19: 26,999,274 km (0.105 R)
• M20: 27,787,655 km (0.053 R)
• M21: 29,135,382 km (0.113 R)
• M22: 31,095,114 km (0.087 R)
• M23: 31,574,426 km (0.116 R)
• M24: 32,253,600 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.8

Radius: 10.1

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.08 AU - 4.36 AU

Year: 6094 Days

Day: 5.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,019,323 km

• M1: 136,882 km (0.066 R)
• M2: 461,509 km (0.079 R)
• M3: 815,608 km (0.069 R)
• M4: 1,810,882 km (0.089 R)
• M5: 2,287,950 km (0.088 R)
• M6: 2,813,188 km (0.096 R)
• M7: 3,225,480 km (0.045 R)
• M8: 4,638,132 km (0.097 R)
• M9: 5,729,449 km (0.064 R)
• M10: 6,700,638 km (0.1 R)
• M11: 7,144,495 km (0.113 R)
• M12: 8,197,365 km (0.117 R)
• M13: 9,350,615 km (0.119 R)
• M14: 10,651,219 km (0.096 R)
• M15: 16,667,297 km (0.112 R)
• M16: 17,188,945 km (0.082 R)
• M17: 17,602,284 km (0.078 R)
• M18: 21,626,018 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.5

Radius: 6.5

Gravity: 20.56 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 6.96 AU - 10.02 AU

Year: 17389 Days

Day: 22.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,019,323 km

• M1: 80,783 km (0.099 R)
• M2: 619,634 km (0.088 R)
• M3: 1,413,251 km (0.072 R)
• M4: 1,622,389 km (0.113 R)
• M5: 2,104,244 km (0.064 R)
• M6: 2,725,224 km (0.111 R)
• M7: 3,377,172 km (0.112 R)
• M8: 4,840,987 km (0.118 R)
• M9: 5,793,028 km (0.078 R)
• M10: 6,038,967 km (0.091 R)
• M11: 9,504,402 km (0.091 R)
• M12: 10,801,265 km (0.1 R)
• M13: 11,300,773 km (0.089 R)
• M14: 12,211,824 km (0.047 R)
• M15: 13,100,734 km (0.103 R)
• M16: 14,032,131 km (0.096 R)
• M17: 15,945,936 km (0.104 R)
• M18: 18,641,091 km (0.11 R)
• M19: 20,755,957 km (0.12 R)
• M20: 21,625,419 km (0.107 R)
• M21: 23,436,601 km (0.091 R)
• M22: 24,698,758 km (0.106 R)
• M23: 25,895,092 km (0.101 R)
• M24: 31,192,353 km (0.049 R)
• M25: 36,055,032 km (0.084 R)
• M26: 38,593,408 km (0.069 R)
• M27: 40,350,435 km (0.054 R)
• M28: 42,007,082 km (0.118 R)
• M29: 50,628,856 km (0.058 R)
• M30: 52,200,980 km (0.119 R)
• M31: 54,166,547 km (0.119 R)
• M32: 55,810,926 km (0.106 R)
• M33: 61,139,303 km (0.087 R)
• M34: 70,181,447 km (0.039 R)
• M35: 70,828,458 km (0.113 R)
• M36: 73,014,083 km (0.073 R)
• M37: 73,456,594 km (0.127 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 14,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit