🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.9

Radius: 8.5

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.55 AU - 0.77 AU

Year: 358 Days

Day: 5.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,318,968 km

• M1: 106,214 km (0.099 R)
• M2: 377,585 km (0.075 R)
• M3: 648,956 km (0.086 R)
• M4: 1,011,730 km (0.101 R)
• M5: 1,434,793 km (0.105 R)
• M6: 1,869,674 km (0.107 R)
• M7: 2,280,769 km (0.036 R)
• M8: 2,676,156 km (0.12 R)
• M9: 4,219,109 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.6

Radius: 10.1

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.1 AU - 1.16 AU

Year: 801 Days

Day: 11.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,318,968 km

• M1: 125,662 km (0.112 R)
• M2: 489,933 km (0.08 R)
• M3: 860,188 km (0.033 R)
• M4: 1,181,674 km (0.026 R)
• M5: 1,546,992 km (0.077 R)
• M6: 1,907,672 km (0.051 R)
• M7: 3,052,694 km (0.116 R)
• M8: 3,558,335 km (0.108 R)
• M9: 4,605,819 km (0.026 R)
• M10: 5,905,226 km (0.117 R)
• M11: 6,381,696 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.5

Radius: 9

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.07 AU - 1.33 AU

Year: 877 Days

Day: 11.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,318,968 km

• M1: 114,442 km (0.026 R)
• M2: 880,832 km (0.114 R)
• M3: 1,186,162 km (0.06 R)
• M4: 1,763,609 km (0.096 R)
• M5: 2,259,077 km (0.066 R)
• M6: 3,121,808 km (0.119 R)
• M7: 3,774,653 km (0.087 R)
• M8: 4,582,931 km (0.117 R)
• M9: 5,995,583 km (0.082 R)
• M10: 6,432,559 km (0.114 R)
• M11: 7,323,564 km (0.045 R)
• M12: 8,244,189 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.2

Radius: 10.1

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.8 AU - 2.48 AU

Year: 2088 Days

Day: 12 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,318,968 km

• M1: 125,662 km (0.055 R)
• M2: 660,923 km (0.113 R)
• M3: 1,081,443 km (0.082 R)
• M4: 1,523,654 km (0.084 R)
• M5: 1,950,307 km (0.098 R)
• M6: 2,305,154 km (0.113 R)
• M7: 3,047,608 km (0.107 R)
• M8: 4,181,111 km (0.11 R)
• M9: 4,934,336 km (0.096 R)
• M10: 5,260,011 km (0.044 R)
• M11: 5,903,132 km (0.084 R)
• M12: 7,023,022 km (0.07 R)
• M13: 7,526,718 km (0.065 R)
• M14: 10,606,040 km (0.048 R)
• M15: 11,032,394 km (0.086 R)
• M16: 11,713,962 km (0.099 R)
• M17: 12,296,047 km (0.111 R)
• M18: 13,249,584 km (0.088 R)
• M19: 16,151,185 km (0.08 R)
• M20: 17,561,444 km (0.052 R)
• M21: 18,268,892 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.8

Radius: 11

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.44 AU - 3.92 AU

Year: 4708 Days

Day: 7.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,318,968 km

• M1: 213,027 km (0.033 R)
• M2: 702,362 km (0.066 R)
• M3: 1,494,782 km (0.056 R)
• M4: 2,029,594 km (0.105 R)
• M5: 2,905,939 km (0.116 R)
• M6: 3,614,135 km (0.102 R)
• M7: 5,141,978 km (0.102 R)
• M8: 5,699,230 km (0.086 R)
• M9: 6,733,849 km (0.085 R)
• M10: 7,375,175 km (0.094 R)
• M11: 9,735,829 km (0.057 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.2

Radius: 6.4

Gravity: 24.3 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 9.37 AU - 10.61 AU

Year: 21056 Days

Day: 23.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,318,968 km

• M1: 80,184 km (0.067 R)
• M2: 284,535 km (0.044 R)
• M3: 881,431 km (0.12 R)
• M4: 1,700,479 km (0.094 R)
• M5: 3,310,900 km (0.076 R)
• M6: 9,449,350 km (0.116 R)
• M7: 10,119,847 km (0.107 R)
• M8: 10,691,610 km (0.104 R)
• M9: 14,663,284 km (0.099 R)
• M10: 17,465,103 km (0.091 R)
• M11: 27,727,965 km (0.045 R)
• M12: 45,872,841 km (0.028 R)
• M13: 47,433,894 km (0.076 R)
• M14: 48,850,885 km (0.075 R)
• M15: 49,569,853 km (0.115 R)
• M16: 53,841,470 km (0.081 R)
• M17: 57,350,887 km (0.059 R)
• M18: 71,521,246 km (0.083 R)
• M19: 75,515,360 km (0.066 R)
• M20: 76,235,374 km (0.206 R)
• M21: 80,401,824 km (0.085 R)
• M22: 86,015,634 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.5

Radius: 6.8

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 9.73 AU - 10.39 AU

Year: 21278 Days

Day: 19.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,318,968 km

• M1: 85,121 km (0.12 R)
• M2: 341,382 km (0.118 R)
• M3: 608,564 km (0.053 R)
• M4: 1,418,487 km (0.066 R)
• M5: 3,155,468 km (0.105 R)
• M6: 5,045,188 km (0.082 R)
• M7: 9,305,436 km (0.066 R)
• M8: 10,202,276 km (0.109 R)
• M9: 10,532,139 km (0.065 R)
• M10: 10,869,183 km (0.12 R)
• M11: 11,923,399 km (0.11 R)
• M12: 12,475,415 km (0.047 R)
• M13: 19,049,194 km (0.12 R)
• M14: 26,567,086 km (0.103 R)
• M15: 29,788,975 km (0.082 R)
• M16: 30,918,290 km (0.071 R)
• M17: 32,428,630 km (0.106 R)
• M18: 33,502,742 km (0.081 R)
• M19: 33,987,589 km (0.102 R)
• M20: 40,313,335 km (0.104 R)
• M21: 43,968,310 km (0.106 R)
• M22: 49,229,069 km (0.11 R)
• M23: 53,398,062 km (0.075 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 16,118 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit