🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.3

Radius: 9.5

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.88 AU - 1.12 AU

Year: 656 Days

Day: 14.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,179,844 km

• M1: 118,930 km (0.09 R)
• M2: 508,483 km (0.117 R)
• M3: 1,317,359 km (0.053 R)
• M4: 1,744,461 km (0.115 R)
• M5: 2,280,919 km (0.109 R)
• M6: 2,700,690 km (0.037 R)
• M7: 3,264,974 km (0.106 R)
• M8: 4,123,665 km (0.072 R)
• M9: 6,264,261 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18

Radius: 13.6

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.04 AU - 1.18 AU

Year: 767 Days

Day: 7.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 68.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 59,179,844 km

• M1: 169,195 km (0.06 R)
• M2: 892,052 km (0.114 R)
• M3: 1,404,425 km (0.119 R)
• M4: 2,223,623 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.3

Radius: 10.2

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.25 AU - 1.39 AU

Year: 995 Days

Day: 9.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,179,844 km

• M1: 129,103 km (0.097 R)
• M2: 466,147 km (0.096 R)
• M3: 826,678 km (0.076 R)
• M4: 1,209,798 km (0.114 R)
• M5: 1,651,710 km (0.095 R)
• M6: 2,306,051 km (0.074 R)
• M7: 2,645,938 km (0.054 R)
• M8: 2,993,603 km (0.056 R)
• M9: 3,558,036 km (0.096 R)
• M10: 4,528,028 km (0.108 R)
• M11: 5,369,516 km (0.092 R)
• M12: 6,290,291 km (0.05 R)
• M13: 6,641,996 km (0.064 R)
• M14: 7,100,214 km (0.074 R)
• M15: 8,003,336 km (0.101 R)
• M16: 8,416,975 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.1

Radius: 14

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.59 AU - 1.81 AU

Year: 1454 Days

Day: 8.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,179,844 km

• M1: 174,132 km (0.091 R)
• M2: 610,958 km (0.086 R)
• M3: 1,154,297 km (0.082 R)
• M4: 1,940,284 km (0.114 R)
• M5: 2,381,897 km (0.037 R)
• M6: 2,990,761 km (0.108 R)
• M7: 3,458,404 km (0.088 R)
• M8: 4,081,180 km (0.088 R)
• M9: 4,524,438 km (0.047 R)
• M10: 5,867,677 km (0.113 R)
• M11: 6,557,922 km (0.067 R)
• M12: 7,013,148 km (0.114 R)
• M13: 7,791,207 km (0.065 R)
• M14: 8,507,481 km (0.119 R)
• M15: 9,267,438 km (0.107 R)
• M16: 9,712,492 km (0.087 R)
• M17: 10,923,038 km (0.108 R)
• M18: 12,081,524 km (0.067 R)
• M19: 12,575,047 km (0.115 R)
• M20: 13,200,815 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.7

Radius: 10.6

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.81 AU - 4.69 AU

Year: 4764 Days

Day: 10 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,179,844 km

• M1: 131,796 km (0.062 R)
• M2: 864,676 km (0.032 R)
• M3: 1,197,531 km (0.08 R)
• M4: 1,936,844 km (0.081 R)
• M5: 3,039,530 km (0.109 R)
• M6: 3,854,838 km (0.103 R)
• M7: 4,519,052 km (0.067 R)
• M8: 5,306,536 km (0.117 R)
• M9: 6,458,439 km (0.063 R)
• M10: 8,123,763 km (0.095 R)
• M11: 8,898,829 km (0.112 R)
• M12: 9,466,553 km (0.096 R)
• M13: 10,518,226 km (0.119 R)
• M14: 11,153,120 km (0.08 R)
• M15: 15,613,979 km (0.041 R)
• M16: 16,023,578 km (0.071 R)
• M17: 17,079,140 km (0.05 R)
• M18: 17,789,730 km (0.079 R)
• M19: 18,634,060 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.2

Radius: 14.9

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.52 AU - 5.12 AU

Year: 6942 Days

Day: 8.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,179,844 km

• M1: 189,690 km (0.106 R)
• M2: 808,726 km (0.106 R)
• M3: 1,272,479 km (0.111 R)
• M4: 1,963,472 km (0.045 R)
• M5: 2,470,310 km (0.067 R)
• M6: 4,449,190 km (0.12 R)
• M7: 7,897,272 km (0.115 R)
• M8: 10,162,183 km (0.074 R)
• M9: 10,689,516 km (0.034 R)
• M10: 11,327,850 km (0.081 R)
• M11: 12,481,250 km (0.071 R)
• M12: 13,396,789 km (0.117 R)
• M13: 14,356,608 km (0.049 R)
• M14: 15,021,571 km (0.12 R)
• M15: 15,998,894 km (0.06 R)
• M16: 19,789,854 km (0.082 R)
• M17: 20,683,850 km (0.101 R)
• M18: 24,220,344 km (0.094 R)
• M19: 25,968,545 km (0.111 R)
• M20: 27,291,888 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603

Radius: 7.2

Gravity: 11.63 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 6.25 AU - 9.59 AU

Year: 14622 Days

Day: 16.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,179,844 km

• M1: 89,609 km (0.116 R)
• M2: 969,245 km (0.116 R)
• M3: 1,637,648 km (0.082 R)
• M4: 2,755,593 km (0.114 R)
• M5: 3,814,895 km (0.093 R)
• M6: 5,655,697 km (0.106 R)
• M7: 6,502,720 km (0.076 R)
• M8: 9,497,969 km (0.12 R)
• M9: 10,136,752 km (0.056 R)
• M10: 12,411,537 km (0.115 R)
• M11: 15,291,146 km (0.098 R)
• M12: 16,167,939 km (0.108 R)
• M13: 16,467,434 km (0.115 R)
• M14: 17,466,748 km (0.101 R)
• M15: 20,971,677 km (0.105 R)
• M16: 25,318,542 km (0.082 R)
• M17: 26,337,154 km (0.099 R)
• M18: 31,492,596 km (0.096 R)
• M19: 36,378,313 km (0.065 R)
• M20: 38,068,918 km (0.071 R)
• M21: 53,852,989 km (0.076 R)
• M22: 56,732,599 km (0.091 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 537 - 11,443 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit