🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.9

Radius: 9.7

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.53 AU - 0.67 AU

Year: 321 Days

Day: 10.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,690,038 km

• M1: 122,521 km (0.117 R)
• M2: 492,027 km (0.103 R)
• M3: 835,055 km (0.098 R)
• M4: 1,178,831 km (0.095 R)
• M5: 1,573,022 km (0.068 R)
• M6: 1,903,334 km (0.114 R)
• M7: 2,443,083 km (0.118 R)
• M8: 2,979,990 km (0.113 R)
• M9: 3,369,393 km (0.1 R)
• M10: 4,760,204 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.4

Radius: 14.3

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.36 AU - 1.46 AU

Year: 1156 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,690,038 km

• M1: 178,321 km (0.066 R)
• M2: 705,055 km (0.116 R)
• M3: 1,169,706 km (0.109 R)
• M4: 1,619,247 km (0.037 R)
• M5: 3,149,634 km (0.091 R)
• M6: 4,048,268 km (0.048 R)
• M7: 4,820,193 km (0.057 R)
• M8: 6,015,330 km (0.096 R)
• M9: 7,072,090 km (0.098 R)
• M10: 8,360,127 km (0.082 R)
• M11: 9,614,655 km (0.111 R)
• M12: 11,363,753 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.6

Radius: 11.2

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.15 AU - 1.79 AU

Year: 1230 Days

Day: 13.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,690,038 km

• M1: 139,276 km (0.094 R)
• M2: 500,106 km (0.11 R)
• M3: 1,203,964 km (0.113 R)
• M4: 1,723,367 km (0.099 R)
• M5: 2,083,150 km (0.076 R)
• M6: 2,700,391 km (0.107 R)
• M7: 3,107,447 km (0.082 R)
• M8: 3,480,394 km (0.108 R)
• M9: 3,980,799 km (0.101 R)
• M10: 4,802,840 km (0.11 R)
• M11: 5,364,131 km (0.098 R)
• M12: 5,776,423 km (0.097 R)
• M13: 6,187,667 km (0.119 R)
• M14: 6,665,034 km (0.101 R)
• M15: 8,300,139 km (0.057 R)
• M16: 9,110,062 km (0.089 R)
• M17: 10,281,413 km (0.12 R)
• M18: 10,919,747 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.8

Radius: 14.4

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.68 AU - 1.98 AU

Year: 1709 Days

Day: 13.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 139 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,690,038 km

• M1: 179,368 km (0.097 R)
• M2: 726,148 km (0.08 R)
• M3: 1,705,565 km (0.108 R)
• M4: 2,278,974 km (0.082 R)
• M5: 3,063,764 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.6

Radius: 8.8

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.77 AU - 2.35 AU

Year: 2041 Days

Day: 9.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,690,038 km

• M1: 109,506 km (0.07 R)
• M2: 443,857 km (0.119 R)
• M3: 948,451 km (0.065 R)
• M4: 1,354,010 km (0.11 R)
• M5: 1,629,719 km (0.066 R)
• M6: 2,065,049 km (0.07 R)
• M7: 2,392,519 km (0.112 R)
• M8: 3,340,520 km (0.116 R)
• M9: 3,813,549 km (0.069 R)
• M10: 5,431,899 km (0.04 R)
• M11: 6,192,305 km (0.042 R)
• M12: 7,403,748 km (0.081 R)
• M13: 7,737,501 km (0.08 R)
• M14: 8,049,712 km (0.059 R)
• M15: 8,867,115 km (0.109 R)
• M16: 9,810,928 km (0.117 R)
• M17: 11,250,657 km (0.088 R)
• M18: 13,531,726 km (0.107 R)
• M19: 15,020,075 km (0.073 R)
• M20: 17,082,730 km (0.102 R)
• M21: 17,452,836 km (0.098 R)
• M22: 18,099,697 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.6

Radius: 11.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.01 AU - 2.17 AU

Year: 2086 Days

Day: 7.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,690,038 km

• M1: 146,756 km (0.086 R)
• M2: 1,012,329 km (0.038 R)
• M3: 1,541,606 km (0.032 R)
• M4: 2,168,421 km (0.103 R)
• M5: 2,663,740 km (0.06 R)
• M6: 3,514,054 km (0.099 R)
• M7: 4,890,354 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240

Radius: 10.8

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 4.37 AU - 4.51 AU

Year: 6458 Days

Day: 13.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,690,038 km

• M1: 134,937 km (0.083 R)
• M2: 634,145 km (0.098 R)
• M3: 1,490,593 km (0.084 R)
• M4: 1,890,468 km (0.072 R)
• M5: 2,317,570 km (0.096 R)
• M6: 2,758,136 km (0.115 R)
• M7: 3,387,644 km (0.086 R)
• M8: 4,001,294 km (0.107 R)
• M9: 4,958,272 km (0.11 R)
• M10: 5,558,458 km (0.09 R)
• M11: 5,918,690 km (0.084 R)
• M12: 6,935,656 km (0.095 R)
• M13: 7,419,755 km (0.107 R)
• M14: 7,960,851 km (0.1 R)
• M15: 8,674,133 km (0.107 R)
• M16: 9,624,977 km (0.075 R)
• M17: 12,328,361 km (0.117 R)
• M18: 14,859,407 km (0.098 R)
• M19: 17,658,981 km (0.099 R)
• M20: 19,688,725 km (0.027 R)
• M21: 20,268,268 km (0.078 R)
• M22: 20,859,030 km (0.082 R)
• M23: 23,338,016 km (0.085 R)
• M24: 24,574,293 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 378.1

Radius: 3.3

Gravity: 34.72 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.06 AU - 6.24 AU

Year: 10527 Days

Day: 18.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,690,038 km

• M1: 41,139 km (0.118 R)
• M2: 217,067 km (0.071 R)
• M3: 445,054 km (0.071 R)
• M4: 555,158 km (0.106 R)
• M5: 832,213 km (0.093 R)
• M6: 1,263,803 km (0.075 R)
• M7: 1,488,648 km (0.075 R)
• M8: 1,798,914 km (0.12 R)
• M9: 2,527,306 km (0.091 R)
• M10: 3,228,023 km (0.036 R)
• M11: 3,456,608 km (0.093 R)
• M12: 3,794,849 km (0.1 R)
• M13: 4,023,584 km (0.078 R)
• M14: 4,261,295 km (0.096 R)
• M15: 8,054,499 km (0.093 R)
• M16: 8,603,523 km (0.107 R)
• M17: 8,909,301 km (0.118 R)
• M18: 9,496,323 km (0.103 R)
• M19: 11,780,683 km (0.067 R)
• M20: 11,941,201 km (0.094 R)
• M21: 25,716,173 km (0.062 R)
• M22: 30,270,830 km (0.057 R)
• M23: 32,948,781 km (0.08 R)
• M24: 34,672,897 km (0.12 R)
• M25: 36,797,187 km (0.12 R)
• M26: 38,534,317 km (0.084 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 11,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit