🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 12

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.7 AU

Year: 337 Days

Day: 12.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 156.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,290,560 km

• M1: 149,299 km (0.102 R)
• M2: 595,250 km (0.044 R)
• M3: 991,535 km (0.113 R)
• M4: 1,417,141 km (0.096 R)
• M5: 1,840,802 km (0.118 R)
• M6: 2,318,917 km (0.058 R)
• M7: 2,817,825 km (0.031 R)
• M8: 3,231,164 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967

Radius: 14.8

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.66 AU - 0.86 AU

Year: 457 Days

Day: 12.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,290,560 km

• M1: 184,005 km (0.107 R)
• M2: 662,419 km (0.109 R)
• M3: 1,152,502 km (0.079 R)
• M4: 2,169,917 km (0.084 R)
• M5: 2,640,552 km (0.099 R)
• M6: 3,323,466 km (0.118 R)
• M7: 3,941,904 km (0.031 R)
• M8: 4,760,354 km (0.091 R)
• M9: 5,243,854 km (0.12 R)
• M10: 5,778,218 km (0.12 R)
• M11: 6,348,934 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.7

Radius: 10.8

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.78 AU - 1.08 AU

Year: 619 Days

Day: 13.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,290,560 km

• M1: 136,284 km (0.118 R)
• M2: 539,899 km (0.085 R)
• M3: 960,269 km (0.079 R)
• M4: 1,430,455 km (0.101 R)
• M5: 2,243,070 km (0.098 R)
• M6: 2,596,720 km (0.055 R)
• M7: 4,646,510 km (0.032 R)
• M8: 6,491,800 km (0.115 R)
• M9: 7,240,238 km (0.103 R)
• M10: 7,809,458 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302

Radius: 11.5

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.45 AU - 1.49 AU

Year: 1230 Days

Day: 11.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,290,560 km

• M1: 143,165 km (0.094 R)
• M2: 517,309 km (0.087 R)
• M3: 1,065,137 km (0.085 R)
• M4: 1,596,508 km (0.09 R)
• M5: 4,325,174 km (0.084 R)
• M6: 7,081,066 km (0.098 R)
• M7: 7,472,414 km (0.097 R)
• M8: 7,975,810 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.6

Radius: 11.2

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.26 AU - 1.84 AU

Year: 1332 Days

Day: 5.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 19,290,560 km

• M1: 139,276 km (0.092 R)
• M2: 501,452 km (0.038 R)
• M3: 1,043,146 km (0.047 R)
• M4: 1,670,859 km (0.049 R)
• M5: 2,077,466 km (0.045 R)
• M6: 2,499,780 km (0.096 R)
• M7: 3,007,964 km (0.052 R)
• M8: 4,250,823 km (0.089 R)
• M9: 4,917,880 km (0.039 R)
• M10: 5,697,734 km (0.115 R)
• M11: 6,436,897 km (0.114 R)
• M12: 6,880,006 km (0.093 R)
• M13: 7,476,004 km (0.062 R)
• M14: 7,994,061 km (0.072 R)
• M15: 8,506,733 km (0.058 R)
• M16: 9,193,836 km (0.104 R)
• M17: 9,756,923 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.6

Radius: 13.9

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.16 AU - 4.9 AU

Year: 5584 Days

Day: 13.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,290,560 km

• M1: 172,935 km (0.095 R)
• M2: 610,210 km (0.057 R)
• M3: 1,168,659 km (0.111 R)
• M4: 1,612,815 km (0.045 R)
• M5: 2,113,968 km (0.066 R)
• M6: 2,754,845 km (0.111 R)
• M7: 4,072,952 km (0.099 R)
• M8: 4,579,041 km (0.085 R)
• M9: 6,418,796 km (0.098 R)
• M10: 7,107,245 km (0.097 R)
• M11: 8,138,723 km (0.101 R)
• M12: 9,186,656 km (0.115 R)
• M13: 10,019,467 km (0.103 R)
• M14: 13,077,397 km (0.075 R)
• M15: 13,756,422 km (0.102 R)
• M16: 14,791,190 km (0.11 R)
• M17: 17,386,115 km (0.065 R)
• M18: 19,656,711 km (0.084 R)
• M19: 20,898,673 km (0.092 R)
• M20: 23,844,704 km (0.098 R)
• M21: 24,859,127 km (0.066 R)
• M22: 25,417,127 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.5

Radius: 11.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.62 AU - 5.32 AU

Year: 7648 Days

Day: 11.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 19,290,560 km

• M1: 230,979 km (0.103 R)
• M2: 916,437 km (0.048 R)
• M3: 2,140,895 km (0.049 R)
• M4: 2,651,772 km (0.108 R)
• M5: 3,363,409 km (0.112 R)
• M6: 3,875,782 km (0.065 R)
• M7: 4,563,782 km (0.086 R)
• M8: 5,220,816 km (0.111 R)
• M9: 6,030,589 km (0.11 R)
• M10: 6,822,560 km (0.112 R)
• M11: 7,295,439 km (0.082 R)
• M12: 7,718,203 km (0.08 R)
• M13: 9,247,243 km (0.117 R)
• M14: 15,321,515 km (0.043 R)
• M15: 16,431,830 km (0.103 R)
• M16: 17,910,007 km (0.119 R)
• M17: 19,341,210 km (0.074 R)
• M18: 20,222,042 km (0.083 R)
• M19: 20,917,522 km (0.108 R)
• M20: 21,845,627 km (0.12 R)
• M21: 25,510,925 km (0.038 R)
• M22: 28,689,132 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.6

Radius: 4.4

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.05 AU - 6.65 AU

Year: 11045 Days

Day: 21.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 19,290,560 km

• M1: 178,470 km (0.119 R)
• M2: 392,844 km (0.039 R)
• M3: 872,455 km (0.106 R)
• M4: 1,037,012 km (0.096 R)
• M5: 1,761,216 km (0.105 R)
• M6: 1,988,754 km (0.108 R)
• M7: 2,416,155 km (0.108 R)
• M8: 2,576,524 km (0.08 R)
• M9: 2,950,968 km (0.081 R)
• M10: 3,255,100 km (0.106 R)
• M11: 4,464,000 km (0.06 R)
• M12: 5,312,968 km (0.098 R)
• M13: 6,709,315 km (0.111 R)
• M14: 6,939,396 km (0.028 R)
• M15: 9,538,809 km (0.103 R)
• M16: 10,014,680 km (0.077 R)
• M17: 17,233,376 km (0.039 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 11,610 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit