🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.52 AU - 0.78 AU

Year: 338 Days

Day: 23.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 41.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,688,856 km

• M1: 34,557 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.2

Radius: 14.1

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.74 AU - 0.9 AU

Year: 479 Days

Day: 14.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,688,856 km

• M1: 175,329 km (0.036 R)
• M2: 713,731 km (0.101 R)
• M3: 1,295,667 km (0.054 R)
• M4: 2,088,985 km (0.073 R)
• M5: 2,668,078 km (0.068 R)
• M6: 3,120,312 km (0.107 R)
• M7: 4,691,240 km (0.071 R)
• M8: 5,160,079 km (0.114 R)
• M9: 5,799,311 km (0.086 R)
• M10: 6,378,255 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.7

Radius: 10.6

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.86 AU - 0.94 AU

Year: 551 Days

Day: 13.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,688,856 km

• M1: 138,677 km (0.035 R)
• M2: 573,409 km (0.09 R)
• M3: 1,156,242 km (0.113 R)
• M4: 1,724,714 km (0.073 R)
• M5: 2,389,676 km (0.112 R)
• M6: 2,856,571 km (0.096 R)
• M7: 3,192,718 km (0.112 R)
• M8: 3,555,493 km (0.093 R)
• M9: 3,917,071 km (0.082 R)
• M10: 4,442,907 km (0.051 R)
• M11: 5,654,351 km (0.107 R)
• M12: 6,881,951 km (0.059 R)
• M13: 7,717,605 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.2

Radius: 12.4

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.11 AU - 1.67 AU

Year: 1058 Days

Day: 5.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,688,856 km

• M1: 159,172 km (0.085 R)
• M2: 806,632 km (0.096 R)
• M3: 1,291,778 km (0.067 R)
• M4: 1,718,580 km (0.118 R)
• M5: 4,563,483 km (0.057 R)
• M6: 5,740,968 km (0.104 R)
• M7: 7,257,292 km (0.094 R)
• M8: 8,335,145 km (0.056 R)
• M9: 9,487,647 km (0.036 R)
• M10: 10,117,603 km (0.118 R)
• M11: 10,647,928 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.1

Radius: 12.4

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.56 AU - 2.42 AU

Year: 1813 Days

Day: 12.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,688,856 km

• M1: 212,429 km (0.074 R)
• M2: 826,379 km (0.12 R)
• M3: 1,217,128 km (0.108 R)
• M4: 1,940,584 km (0.026 R)
• M5: 2,589,390 km (0.059 R)
• M6: 3,378,967 km (0.117 R)
• M7: 4,052,158 km (0.075 R)
• M8: 6,361,799 km (0.098 R)
• M9: 6,796,231 km (0.115 R)
• M10: 8,424,155 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.5

Radius: 11.9

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.79 AU - 6.49 AU

Year: 8648 Days

Day: 5.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,688,856 km

• M1: 148,102 km (0.115 R)
• M2: 629,209 km (0.087 R)
• M3: 2,349,584 km (0.108 R)
• M4: 4,905,613 km (0.105 R)
• M5: 5,738,574 km (0.081 R)
• M6: 7,161,848 km (0.054 R)
• M7: 7,901,460 km (0.097 R)
• M8: 8,498,505 km (0.069 R)
• M9: 9,085,527 km (0.046 R)
• M10: 9,574,413 km (0.071 R)
• M11: 10,738,883 km (0.095 R)
• M12: 11,378,713 km (0.08 R)
• M13: 13,556,409 km (0.06 R)
• M14: 13,980,370 km (0.088 R)
• M15: 14,966,818 km (0.088 R)
• M16: 17,950,249 km (0.077 R)
• M17: 19,783,720 km (0.117 R)
• M18: 22,101,141 km (0.1 R)
• M19: 23,819,871 km (0.115 R)
• M20: 26,193,241 km (0.054 R)
• M21: 26,603,588 km (0.097 R)
• M22: 27,185,374 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.1

Radius: 6.7

Gravity: 19.65 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.75 AU - 8.95 AU

Year: 12866 Days

Day: 15.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 155.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 61,688,856 km

• M1: 86,916 km (0.057 R)
• M2: 350,059 km (0.117 R)
• M3: 1,011,730 km (0.096 R)
• M4: 1,954,347 km (0.09 R)
• M5: 2,547,652 km (0.111 R)
• M6: 2,839,517 km (0.12 R)
• M7: 3,178,656 km (0.113 R)
• M8: 3,794,251 km (0.11 R)
• M9: 4,026,127 km (0.11 R)
• M10: 4,267,429 km (0.066 R)
• M11: 4,713,081 km (0.115 R)
• M12: 5,331,070 km (0.113 R)
• M13: 6,602,652 km (0.099 R)
• M14: 7,198,799 km (0.101 R)
• M15: 8,997,863 km (0.113 R)
• M16: 10,110,871 km (0.093 R)
• M17: 11,917,714 km (0.073 R)
• M18: 13,456,777 km (0.115 R)
• M19: 14,908,176 km (0.087 R)
• M20: 15,561,021 km (0.08 R)
• M21: 15,931,874 km (0.052 R)
• M22: 19,114,270 km (0.111 R)
• M23: 20,058,531 km (0.079 R)
• M24: 20,497,751 km (0.098 R)
• M25: 27,233,544 km (0.049 R)
• M26: 27,880,854 km (0.067 R)
• M27: 28,098,818 km (0.113 R)
• M28: 29,998,263 km (0.118 R)
• M29: 30,342,039 km (0.103 R)
• M30: 32,220,539 km (0.082 R)
• M31: 35,820,313 km (0.113 R)
• M32: 39,404,678 km (0.085 R)
• M33: 42,496,566 km (0.104 R)
• M34: 43,659,839 km (0.099 R)
• M35: 47,431,800 km (0.105 R)
• M36: 53,236,646 km (0.102 R)
• M37: 57,888,691 km (0.108 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 15,050 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit