🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.2

Radius: 9.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.99 AU - 1.07 AU

Year: 675 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,381,506 km

• M1: 114,442 km (0.106 R)
• M2: 456,274 km (0.066 R)
• M3: 848,220 km (0.096 R)
• M4: 1,258,866 km (0.107 R)
• M5: 1,547,740 km (0.095 R)
• M6: 1,848,431 km (0.089 R)
• M7: 2,179,342 km (0.12 R)
• M8: 2,468,365 km (0.104 R)
• M9: 2,860,461 km (0.098 R)
• M10: 3,269,461 km (0.081 R)
• M11: 3,677,265 km (0.088 R)
• M12: 4,397,280 km (0.042 R)
• M13: 4,895,142 km (0.086 R)
• M14: 5,856,607 km (0.095 R)
• M15: 6,153,260 km (0.092 R)
• M16: 6,498,980 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.1

Radius: 8

Gravity: 14.78 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.13 AU - 1.17 AU

Year: 796 Days

Day: 10.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,381,506 km

• M1: 99,632 km (0.079 R)
• M2: 582,983 km (0.117 R)
• M3: 1,194,689 km (0.107 R)
• M4: 1,458,878 km (0.074 R)
• M5: 2,847,895 km (0.111 R)
• M6: 3,326,458 km (0.112 R)
• M7: 4,160,018 km (0.084 R)
• M8: 4,461,009 km (0.096 R)
• M9: 4,758,708 km (0.047 R)
• M10: 8,094,142 km (0.118 R)
• M11: 8,485,042 km (0.107 R)
• M12: 9,792,228 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.6

Radius: 13.1

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.21 AU - 1.41 AU

Year: 968 Days

Day: 8.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,381,506 km

• M1: 166,353 km (0.117 R)
• M2: 697,724 km (0.051 R)
• M3: 1,114,654 km (0.086 R)
• M4: 1,915,302 km (0.086 R)
• M5: 2,679,148 km (0.06 R)
• M6: 3,112,533 km (0.049 R)
• M7: 3,563,421 km (0.087 R)
• M8: 4,741,056 km (0.105 R)
• M9: 5,420,080 km (0.081 R)
• M10: 6,013,535 km (0.074 R)
• M11: 6,559,717 km (0.077 R)
• M12: 7,306,958 km (0.104 R)
• M13: 8,560,589 km (0.099 R)
• M14: 9,338,647 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.5

Radius: 13.5

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.37 AU - 1.63 AU

Year: 1186 Days

Day: 11.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,381,506 km

• M1: 168,148 km (0.083 R)
• M2: 761,453 km (0.102 R)
• M3: 1,406,070 km (0.1 R)
• M4: 1,832,574 km (0.077 R)
• M5: 4,020,293 km (0.106 R)
• M6: 4,855,348 km (0.112 R)
• M7: 5,419,781 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522

Radius: 10.8

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.48 AU - 1.6 AU

Year: 1234 Days

Day: 7.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,381,506 km

• M1: 134,788 km (0.087 R)
• M2: 922,720 km (0.099 R)
• M3: 1,282,951 km (0.12 R)
• M4: 2,519,378 km (0.04 R)
• M5: 3,415,768 km (0.041 R)
• M6: 4,035,253 km (0.093 R)
• M7: 4,424,507 km (0.113 R)
• M8: 5,084,532 km (0.103 R)
• M9: 5,559,954 km (0.1 R)
• M10: 6,043,455 km (0.108 R)
• M11: 6,486,414 km (0.045 R)
• M12: 7,191,618 km (0.035 R)
• M13: 8,371,347 km (0.118 R)
• M14: 8,866,516 km (0.08 R)
• M15: 9,322,939 km (0.086 R)
• M16: 9,915,646 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.3

Radius: 11.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.65 AU - 3.49 AU

Year: 3473 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,381,506 km

• M1: 146,756 km (0.102 R)
• M2: 660,923 km (0.087 R)
• M3: 1,061,846 km (0.116 R)
• M4: 1,519,765 km (0.09 R)
• M5: 3,883,561 km (0.094 R)
• M6: 5,512,981 km (0.084 R)
• M7: 6,412,812 km (0.094 R)
• M8: 8,084,419 km (0.12 R)
• M9: 8,536,055 km (0.094 R)
• M10: 9,596,404 km (0.116 R)
• M11: 10,665,879 km (0.115 R)
• M12: 12,311,456 km (0.088 R)
• M13: 13,936,238 km (0.085 R)
• M14: 16,816,147 km (0.097 R)
• M15: 18,700,631 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 709.8

Radius: 3.3

Gravity: 65.18 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.56 AU - 11.24 AU

Year: 18608 Days

Day: 16.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 73,381,506 km

• M1: 41,139 km (0.086 R)
• M2: 149,747 km (0.083 R)
• M3: 341,382 km (0.105 R)
• M4: 710,590 km (0.101 R)
• M5: 1,042,248 km (0.066 R)
• M6: 1,173,296 km (0.071 R)
• M7: 2,268,502 km (0.12 R)
• M8: 2,512,496 km (0.064 R)
• M9: 2,676,605 km (0.093 R)
• M10: 2,949,172 km (0.082 R)
• M11: 3,462,742 km (0.053 R)
• M12: 3,877,726 km (0.051 R)
• M13: 4,699,767 km (0.086 R)
• M14: 5,953,846 km (0.094 R)
• M15: 6,331,131 km (0.067 R)
• M16: 8,151,887 km (0.061 R)
• M17: 9,153,744 km (0.116 R)
• M18: 10,058,662 km (0.087 R)
• M19: 10,234,738 km (0.073 R)
• M20: 10,412,909 km (0.095 R)
• M21: 11,978,750 km (0.117 R)
• M22: 12,243,090 km (0.11 R)
• M23: 14,799,418 km (0.053 R)
• M24: 14,950,961 km (0.096 R)
• M25: 17,435,632 km (0.087 R)
• M26: 19,904,595 km (0.073 R)
• M27: 20,745,036 km (0.088 R)
• M28: 21,706,352 km (0.059 R)
• M29: 23,408,177 km (0.118 R)
• M30: 23,925,187 km (0.069 R)
• M31: 24,134,026 km (0.084 R)
• M32: 31,730,008 km (0.119 R)
• M33: 34,978,974 km (0.084 R)
• M34: 36,338,220 km (0.1 R)
• M35: 45,240,341 km (0.086 R)
• M36: 48,335,970 km (0.119 R)
• M37: 48,669,722 km (0.105 R)
• M38: 53,506,222 km (0.099 R)
• M39: 60,956,495 km (0.077 R)
• M40: 61,933,668 km (0.11 R)
• M41: 68,436,538 km (0.07 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 19,266 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit