🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.9

Radius: 13.3

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.72 AU - 0.98 AU

Year: 541 Days

Day: 14 Hours

Environment

Temp: -169 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,474,948 km

• M1: 165,455 km (0.071 R)
• M2: 605,871 km (0.061 R)
• M3: 1,021,753 km (0.053 R)
• M4: 1,740,870 km (0.102 R)
• M5: 2,401,495 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.4

Radius: 9.3

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.68 AU - 1.06 AU

Year: 560 Days

Day: 5.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,474,948 km

• M1: 121,174 km (0.093 R)
• M2: 430,543 km (0.12 R)
• M3: 828,323 km (0.05 R)
• M4: 1,181,225 km (0.114 R)
• M5: 2,097,362 km (0.063 R)
• M6: 2,494,544 km (0.082 R)
• M7: 3,134,973 km (0.118 R)
• M8: 3,739,947 km (0.056 R)
• M9: 4,281,192 km (0.111 R)
• M10: 4,595,048 km (0.065 R)
• M11: 5,912,108 km (0.093 R)
• M12: 6,962,435 km (0.091 R)
• M13: 7,577,132 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.6

Radius: 14.2

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.9 AU - 1.38 AU

Year: 840 Days

Day: 14.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,474,948 km

• M1: 176,675 km (0.082 R)
• M2: 691,591 km (0.097 R)
• M3: 1,290,880 km (0.069 R)
• M4: 1,914,853 km (0.08 R)
• M5: 3,046,860 km (0.04 R)
• M6: 4,296,750 km (0.095 R)
• M7: 4,977,570 km (0.117 R)
• M8: 5,427,411 km (0.028 R)
• M9: 7,142,999 km (0.109 R)
• M10: 8,223,844 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.7

Radius: 9.8

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.01 AU - 1.59 AU

Year: 1023 Days

Day: 7.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,474,948 km

• M1: 121,922 km (0.054 R)
• M2: 429,944 km (0.074 R)
• M3: 823,237 km (0.119 R)
• M4: 1,233,135 km (0.069 R)
• M5: 1,721,572 km (0.115 R)
• M6: 3,174,168 km (0.087 R)
• M7: 3,484,583 km (0.051 R)
• M8: 4,271,618 km (0.037 R)
• M9: 4,614,197 km (0.092 R)
• M10: 5,253,279 km (0.117 R)
• M11: 6,401,742 km (0.043 R)
• M12: 6,707,520 km (0.059 R)
• M13: 7,424,842 km (0.057 R)
• M14: 8,274,857 km (0.063 R)
• M15: 9,337,002 km (0.097 R)
• M16: 9,669,707 km (0.117 R)
• M17: 10,010,342 km (0.108 R)
• M18: 10,326,891 km (0.092 R)
• M19: 10,748,457 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.8

Radius: 6.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 7.98 AU - 9.88 AU

Year: 18420 Days

Day: 17.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,474,948 km

• M1: 83,326 km (0.074 R)
• M2: 291,716 km (0.053 R)
• M3: 512,971 km (0.093 R)
• M4: 775,366 km (0.111 R)
• M5: 1,403,378 km (0.102 R)
• M6: 2,153,611 km (0.095 R)
• M7: 3,026,215 km (0.12 R)
• M8: 3,520,337 km (0.11 R)
• M9: 5,650,012 km (0.107 R)
• M10: 9,245,448 km (0.113 R)
• M11: 11,108,240 km (0.032 R)
• M12: 14,632,317 km (0.083 R)
• M13: 16,035,695 km (0.034 R)
• M14: 21,726,847 km (0.115 R)
• M15: 22,023,649 km (0.114 R)
• M16: 22,930,362 km (0.044 R)
• M17: 27,148,573 km (0.055 R)
• M18: 27,492,947 km (0.078 R)
• M19: 31,287,347 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 43.4

Radius: 5.2

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.59 AU - 10.81 AU

Year: 20853 Days

Day: 20.3 Hours

Environment

Temp: -244 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,474,948 km

• M1: 70,461 km (0.033 R)
• M2: 271,520 km (0.105 R)
• M3: 433,535 km (0.11 R)
• M4: 684,111 km (0.104 R)
• M5: 2,086,741 km (0.084 R)
• M6: 3,463,939 km (0.106 R)
• M7: 3,748,923 km (0.1 R)
• M8: 4,073,251 km (0.034 R)
• M9: 5,951,003 km (0.095 R)
• M10: 7,304,565 km (0.082 R)
• M11: 9,937,936 km (0.06 R)
• M12: 11,779,187 km (0.102 R)
• M13: 18,250,342 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.2

Radius: 5.4

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.65 AU - 11.99 AU

Year: 21241 Days

Day: 21.7 Hours

Environment

Temp: -244 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,474,948 km

• M1: 133,142 km (0.096 R)
• M2: 518,656 km (0.111 R)
• M3: 756,068 km (0.093 R)
• M4: 1,510,639 km (0.086 R)
• M5: 1,933,403 km (0.059 R)
• M6: 2,431,713 km (0.081 R)
• M7: 3,199,898 km (0.068 R)
• M8: 3,396,171 km (0.117 R)
• M9: 4,501,101 km (0.099 R)
• M10: 5,336,455 km (0.07 R)
• M11: 6,308,692 km (0.086 R)
• M12: 7,351,389 km (0.116 R)
• M13: 10,667,226 km (0.101 R)
• M14: 13,677,135 km (0.082 R)
• M15: 16,113,486 km (0.067 R)
• M16: 31,129,522 km (0.104 R)
• M17: 33,986,243 km (0.085 R)
• M18: 35,056,017 km (0.106 R)
• M19: 35,417,595 km (0.11 R)
• M20: 37,639,273 km (0.118 R)
• M21: 38,655,791 km (0.12 R)
• M22: 51,537,214 km (0.103 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: 245 - 11,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit