🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.1

Radius: 10.3

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.71 AU - 0.95 AU

Year: 522 Days

Day: 13.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,979,317 km

• M1: 128,056 km (0.034 R)
• M2: 474,076 km (0.107 R)
• M3: 949,946 km (0.057 R)
• M4: 1,327,831 km (0.091 R)
• M5: 1,673,103 km (0.087 R)
• M6: 2,151,367 km (0.065 R)
• M7: 2,795,685 km (0.051 R)
• M8: 3,199,898 km (0.069 R)
• M9: 3,642,858 km (0.087 R)
• M10: 4,199,063 km (0.105 R)
• M11: 5,342,589 km (0.07 R)
• M12: 6,289,693 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.5

Radius: 12

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.69 AU - 1.01 AU

Year: 541 Days

Day: 9.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,979,317 km

• M1: 149,598 km (0.116 R)
• M2: 718,519 km (0.108 R)
• M3: 1,332,019 km (0.072 R)
• M4: 2,112,322 km (0.098 R)
• M5: 2,726,421 km (0.083 R)
• M6: 3,154,570 km (0.071 R)
• M7: 4,107,359 km (0.098 R)
• M8: 5,226,650 km (0.114 R)
• M9: 5,670,058 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.2

Radius: 11.9

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.35 AU - 1.61 AU

Year: 1243 Days

Day: 5.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,979,317 km

• M1: 147,952 km (0.113 R)
• M2: 594,053 km (0.069 R)
• M3: 989,889 km (0.103 R)
• M4: 1,451,997 km (0.061 R)
• M5: 2,187,420 km (0.112 R)
• M6: 2,685,431 km (0.059 R)
• M7: 3,143,201 km (0.102 R)
• M8: 3,543,824 km (0.119 R)
• M9: 3,928,440 km (0.096 R)
• M10: 4,632,298 km (0.082 R)
• M11: 5,543,798 km (0.097 R)
• M12: 6,360,752 km (0.067 R)
• M13: 7,538,237 km (0.056 R)
• M14: 8,015,454 km (0.065 R)
• M15: 8,512,717 km (0.08 R)
• M16: 9,846,831 km (0.113 R)
• M17: 10,910,322 km (0.062 R)
• M18: 11,695,861 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.7

Radius: 12.6

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.51 AU - 1.51 AU

Year: 1281 Days

Day: 8.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,979,317 km

• M1: 157,377 km (0.073 R)
• M2: 687,103 km (0.116 R)
• M3: 1,103,883 km (0.119 R)
• M4: 1,840,652 km (0.035 R)
• M5: 2,620,655 km (0.118 R)
• M6: 3,756,702 km (0.096 R)
• M7: 4,308,718 km (0.079 R)
• M8: 5,176,535 km (0.078 R)
• M9: 5,598,252 km (0.116 R)
• M10: 6,344,446 km (0.116 R)
• M11: 7,181,446 km (0.043 R)
• M12: 7,626,948 km (0.107 R)
• M13: 8,287,423 km (0.094 R)
• M14: 9,166,161 km (0.088 R)
• M15: 9,785,795 km (0.096 R)
• M16: 10,835,374 km (0.116 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230.1

Radius: 4.4

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.1 AU - 8.3 AU

Year: 11971 Days

Day: 19 Hours

Environment

Temp: -228 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,979,317 km

• M1: 57,894 km (0.081 R)
• M2: 223,200 km (0.045 R)
• M3: 566,826 km (0.066 R)
• M4: 1,490,294 km (0.092 R)
• M5: 3,163,696 km (0.083 R)
• M6: 3,949,234 km (0.04 R)
• M7: 4,334,150 km (0.049 R)
• M8: 4,943,312 km (0.104 R)
• M9: 6,027,149 km (0.099 R)
• M10: 7,001,480 km (0.089 R)
• M11: 7,680,654 km (0.104 R)
• M12: 8,994,572 km (0.118 R)
• M13: 11,286,112 km (0.109 R)
• M14: 11,693,916 km (0.116 R)
• M15: 14,290,187 km (0.064 R)
• M16: 17,718,970 km (0.109 R)
• M17: 17,924,218 km (0.069 R)
• M18: 27,582,855 km (0.085 R)
• M19: 37,341,125 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 902.2

Radius: 7.6

Gravity: 15.62 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 7.49 AU - 10.43 AU

Year: 18513 Days

Day: 23.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,979,317 km

• M1: 95,443 km (0.057 R)
• M2: 340,784 km (0.076 R)
• M3: 971,937 km (0.04 R)
• M4: 1,406,519 km (0.102 R)
• M5: 1,722,171 km (0.108 R)
• M6: 2,064,451 km (0.045 R)
• M7: 3,287,413 km (0.085 R)
• M8: 4,069,960 km (0.091 R)
• M9: 4,897,086 km (0.054 R)
• M10: 5,627,872 km (0.104 R)
• M11: 7,547,661 km (0.033 R)
• M12: 9,807,936 km (0.114 R)
• M13: 11,284,167 km (0.117 R)
• M14: 13,402,623 km (0.073 R)
• M15: 16,344,615 km (0.076 R)
• M16: 17,442,663 km (0.112 R)
• M17: 23,468,016 km (0.036 R)
• M18: 25,526,034 km (0.092 R)
• M19: 27,819,370 km (0.111 R)
• M20: 28,413,423 km (0.117 R)
• M21: 31,639,800 km (0.1 R)
• M22: 33,742,099 km (0.096 R)
• M23: 35,796,078 km (0.117 R)
• M24: 36,076,125 km (0.093 R)
• M25: 36,924,943 km (0.107 R)
• M26: 37,786,926 km (0.114 R)
• M27: 38,223,004 km (0.086 R)
• M28: 39,105,033 km (0.062 R)
• M29: 44,040,267 km (0.067 R)
• M30: 45,009,661 km (0.115 R)
• M31: 45,499,594 km (0.028 R)
• M32: 45,828,261 km (0.059 R)
• M33: 47,495,080 km (0.079 R)
• M34: 55,685,713 km (0.111 R)
• M35: 64,769,445 km (0.047 R)
• M36: 69,443,032 km (0.094 R)
• M37: 75,709,837 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.7

Radius: 7.5

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 9.82 AU - 10.5 AU

Year: 22354 Days

Day: 18.3 Hours

Environment

Temp: -246 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,979,317 km

• M1: 136,134 km (0.059 R)
• M2: 934,987 km (0.104 R)
• M3: 1,263,354 km (0.057 R)
• M4: 1,518,718 km (0.114 R)
• M5: 5,368,619 km (0.111 R)
• M6: 10,144,232 km (0.051 R)
• M7: 10,622,795 km (0.117 R)
• M8: 13,671,749 km (0.084 R)
• M9: 17,258,658 km (0.107 R)
• M10: 19,632,327 km (0.046 R)
• M11: 30,809,532 km (0.053 R)
• M12: 33,096,435 km (0.075 R)
• M13: 34,414,541 km (0.097 R)
• M14: 36,318,324 km (0.032 R)
• M15: 42,449,443 km (0.066 R)
• M16: 42,912,149 km (0.042 R)
• M17: 53,960,550 km (0.038 R)
• M18: 54,685,202 km (0.088 R)
• M19: 56,711,506 km (0.106 R)
• M20: 71,659,774 km (0.103 R)
• M21: 72,096,599 km (0.118 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 10,831 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit