🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 14.3

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.1 AU - 1.14 AU

Year: 818 Days

Day: 7.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,164,273 km

• M1: 177,872 km (0.037 R)
• M2: 631,303 km (0.112 R)
• M3: 1,099,395 km (0.112 R)
• M4: 1,768,845 km (0.112 R)
• M5: 2,217,040 km (0.102 R)
• M6: 3,730,971 km (0.055 R)
• M7: 4,637,684 km (0.053 R)
• M8: 5,458,677 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.7

Radius: 10.2

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.99 AU - 2.67 AU

Year: 2455 Days

Day: 10.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 87,164,273 km

• M1: 126,859 km (0.104 R)
• M2: 575,353 km (0.065 R)
• M3: 1,013,675 km (0.073 R)
• M4: 1,767,499 km (0.102 R)
• M5: 2,372,921 km (0.066 R)
• M6: 3,160,405 km (0.089 R)
• M7: 3,534,848 km (0.107 R)
• M8: 4,394,437 km (0.072 R)
• M9: 4,951,390 km (0.099 R)
• M10: 5,506,698 km (0.085 R)
• M11: 5,924,824 km (0.109 R)
• M12: 6,714,401 km (0.074 R)
• M13: 7,106,198 km (0.053 R)
• M14: 8,729,784 km (0.108 R)
• M15: 10,145,578 km (0.04 R)
• M16: 11,391,878 km (0.035 R)
• M17: 17,251,776 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.6

Radius: 9.8

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.24 AU - 3.78 AU

Year: 4539 Days

Day: 8.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,164,273 km

• M1: 122,521 km (0.03 R)
• M2: 474,225 km (0.089 R)
• M3: 849,566 km (0.042 R)
• M4: 1,510,639 km (0.075 R)
• M5: 2,438,894 km (0.06 R)
• M6: 4,820,941 km (0.108 R)
• M7: 5,832,073 km (0.102 R)
• M8: 6,432,260 km (0.042 R)
• M9: 15,575,233 km (0.067 R)
• M10: 16,899,174 km (0.108 R)
• M11: 19,394,018 km (0.102 R)
• M12: 21,253,669 km (0.096 R)
• M13: 21,854,304 km (0.105 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.9

Radius: 4.9

Gravity: 14.7 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.84 AU - 9.36 AU

Year: 14462 Days

Day: 22 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,164,273 km

• M1: 60,886 km (0.116 R)
• M2: 297,849 km (0.093 R)
• M3: 1,115,402 km (0.081 R)
• M4: 2,058,915 km (0.084 R)
• M5: 2,487,065 km (0.11 R)
• M6: 3,108,793 km (0.104 R)
• M7: 3,697,162 km (0.05 R)
• M8: 3,908,992 km (0.094 R)
• M9: 4,385,910 km (0.067 R)
• M10: 6,195,895 km (0.105 R)
• M11: 10,929,471 km (0.087 R)
• M12: 11,311,095 km (0.095 R)
• M13: 15,155,311 km (0.108 R)
• M14: 15,561,320 km (0.113 R)
• M15: 16,679,863 km (0.077 R)
• M16: 17,039,945 km (0.116 R)
• M17: 17,405,413 km (0.068 R)
• M18: 29,046,970 km (0.05 R)
• M19: 30,202,015 km (0.109 R)
• M20: 42,674,438 km (0.105 R)
• M21: 43,755,582 km (0.062 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 190.7

Radius: 7.4

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.43 AU - 10.11 AU

Year: 19482 Days

Day: 22.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 87,164,273 km

• M1: 201,508 km (0.096 R)
• M2: 487,689 km (0.099 R)
• M3: 998,865 km (0.083 R)
• M4: 1,644,230 km (0.076 R)
• M5: 5,023,197 km (0.075 R)
• M6: 6,670,719 km (0.098 R)
• M7: 7,850,597 km (0.082 R)
• M8: 8,741,602 km (0.089 R)
• M9: 9,116,345 km (0.116 R)
• M10: 9,698,280 km (0.086 R)
• M11: 10,356,511 km (0.117 R)
• M12: 10,829,390 km (0.092 R)
• M13: 11,098,217 km (0.098 R)
• M14: 14,487,058 km (0.043 R)
• M15: 14,813,630 km (0.052 R)
• M16: 15,617,719 km (0.1 R)
• M17: 18,355,958 km (0.101 R)
• M18: 18,815,672 km (0.042 R)
• M19: 21,314,555 km (0.067 R)
• M20: 21,652,197 km (0.076 R)
• M21: 26,374,254 km (0.078 R)
• M22: 31,086,438 km (0.033 R)
• M23: 32,848,700 km (0.108 R)
• M24: 34,444,461 km (0.096 R)
• M25: 42,401,123 km (0.092 R)
• M26: 47,087,875 km (0.034 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518

Radius: 8

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.53 AU - 11.87 AU

Year: 20853 Days

Day: 19.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,164,273 km

• M1: 99,483 km (0.079 R)
• M2: 557,551 km (0.103 R)
• M3: 1,252,134 km (0.116 R)
• M4: 1,516,174 km (0.057 R)
• M5: 1,889,870 km (0.103 R)
• M6: 2,179,192 km (0.075 R)
• M7: 3,974,516 km (0.059 R)
• M8: 4,519,651 km (0.108 R)
• M9: 5,410,805 km (0.118 R)
• M10: 5,680,082 km (0.089 R)
• M11: 6,456,794 km (0.06 R)
• M12: 6,804,310 km (0.103 R)
• M13: 7,348,846 km (0.064 R)
• M14: 7,631,885 km (0.1 R)
• M15: 11,685,389 km (0.042 R)
• M16: 12,532,861 km (0.091 R)
• M17: 13,773,027 km (0.107 R)
• M18: 15,783,772 km (0.117 R)
• M19: 16,899,772 km (0.09 R)
• M20: 21,796,410 km (0.062 R)
• M21: 25,899,580 km (0.092 R)
• M22: 27,336,617 km (0.062 R)
• M23: 28,709,776 km (0.118 R)
• M24: 31,099,303 km (0.114 R)
• M25: 36,954,713 km (0.091 R)
• M26: 38,631,855 km (0.076 R)
• M27: 51,643,878 km (0.086 R)
• M28: 54,448,389 km (0.067 R)
• M29: 54,985,296 km (0.115 R)
• M30: 55,345,228 km (0.098 R)
• M31: 57,168,377 km (0.031 R)
• M32: 59,219,663 km (0.081 R)
• M33: 66,683,400 km (0.118 R)
• M34: 68,330,772 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.8

Radius: 7.4

Gravity: 14.53 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 9.26 AU - 11.3 AU

Year: 22751 Days

Day: 24.8 Hours

Environment

Temp: -245 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,164,273 km

• M1: 99,931 km (0.118 R)
• M2: 336,146 km (0.035 R)
• M3: 566,677 km (0.04 R)
• M4: 1,657,993 km (0.117 R)
• M5: 2,003,415 km (0.079 R)
• M6: 2,396,259 km (0.038 R)
• M7: 3,987,531 km (0.111 R)
• M8: 6,405,781 km (0.084 R)
• M9: 7,160,801 km (0.099 R)
• M10: 9,132,202 km (0.115 R)
• M11: 11,041,520 km (0.111 R)
• M12: 11,506,919 km (0.11 R)
• M13: 32,591,542 km (0.092 R)
• M14: 35,232,991 km (0.1 R)
• M15: 35,806,699 km (0.116 R)
• M16: 41,890,994 km (0.094 R)
• M17: 66,140,659 km (0.055 R)
• M18: 67,233,023 km (0.096 R)
• M19: 68,337,355 km (0.082 R)
• M20: 69,005,608 km (0.054 R)
• M21: 69,453,654 km (0.108 R)
• M22: 80,547,682 km (0.21 R)
• M23: 83,051,352 km (0.112 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: 455 - 14,704 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit