🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.4

Radius: 9.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.53 AU - 0.57 AU

Year: 272 Days

Day: 7.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,036,060 km

• M1: 114,442 km (0.105 R)
• M2: 505,042 km (0.102 R)
• M3: 857,645 km (0.075 R)
• M4: 1,430,455 km (0.105 R)
• M5: 2,062,655 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.2

Radius: 10.4

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.52 AU - 0.86 AU

Year: 382 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,036,060 km

• M1: 139,425 km (0.065 R)
• M2: 547,977 km (0.06 R)
• M3: 996,621 km (0.105 R)
• M4: 1,687,314 km (0.114 R)
• M5: 2,122,943 km (0.081 R)
• M6: 3,111,337 km (0.089 R)
• M7: 3,549,957 km (0.106 R)
• M8: 4,424,207 km (0.025 R)
• M9: 5,244,303 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.7

Radius: 12.5

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.87 AU - 1.17 AU

Year: 687 Days

Day: 13.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,036,060 km

• M1: 156,479 km (0.108 R)
• M2: 562,039 km (0.116 R)
• M3: 1,040,752 km (0.036 R)
• M4: 1,521,859 km (0.03 R)
• M5: 2,334,924 km (0.119 R)
• M6: 2,969,967 km (0.048 R)
• M7: 4,241,698 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.8

Radius: 13.9

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.99 AU - 1.15 AU

Year: 738 Days

Day: 14.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,036,060 km

• M1: 172,935 km (0.092 R)
• M2: 696,827 km (0.075 R)
• M3: 1,152,352 km (0.07 R)
• M4: 1,613,712 km (0.082 R)
• M5: 2,081,505 km (0.11 R)
• M6: 2,838,171 km (0.069 R)
• M7: 4,675,831 km (0.106 R)
• M8: 5,502,359 km (0.076 R)
• M9: 7,294,542 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.5

Radius: 11.5

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.03 AU - 1.15 AU

Year: 759 Days

Day: 6.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,036,060 km

• M1: 143,016 km (0.106 R)
• M2: 580,141 km (0.09 R)
• M3: 969,095 km (0.094 R)
• M4: 1,356,703 km (0.116 R)
• M5: 1,770,042 km (0.109 R)
• M6: 2,130,722 km (0.105 R)
• M7: 2,510,851 km (0.117 R)
• M8: 2,869,736 km (0.075 R)
• M9: 3,263,178 km (0.095 R)
• M10: 3,921,409 km (0.109 R)
• M11: 5,348,573 km (0.086 R)
• M12: 6,208,611 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.5

Radius: 8

Gravity: 13.3 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.06 AU - 4.8 AU

Year: 5195 Days

Day: 6.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,036,060 km

• M1: 99,782 km (0.115 R)
• M2: 365,168 km (0.063 R)
• M3: 656,585 km (0.096 R)
• M4: 1,157,289 km (0.078 R)
• M5: 1,994,588 km (0.096 R)
• M6: 2,947,676 km (0.075 R)
• M7: 3,591,396 km (0.082 R)
• M8: 6,445,723 km (0.12 R)
• M9: 6,885,092 km (0.098 R)
• M10: 7,937,513 km (0.088 R)
• M11: 9,010,429 km (0.099 R)
• M12: 10,087,235 km (0.116 R)
• M13: 10,961,335 km (0.101 R)
• M14: 11,295,686 km (0.095 R)
• M15: 12,187,140 km (0.075 R)
• M16: 12,597,936 km (0.1 R)
• M17: 13,018,007 km (0.068 R)
• M18: 20,855,439 km (0.041 R)
• M19: 25,289,520 km (0.091 R)
• M20: 26,212,090 km (0.117 R)
• M21: 28,213,261 km (0.076 R)
• M22: 33,108,851 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 404.5

Radius: 5.8

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 8.37 AU - 9.97 AU

Year: 18518 Days

Day: 16.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,036,060 km

• M1: 72,405 km (0.066 R)
• M2: 339,288 km (0.027 R)
• M3: 556,654 km (0.114 R)
• M4: 1,489,097 km (0.111 R)
• M5: 2,151,367 km (0.083 R)
• M6: 2,691,266 km (0.052 R)
• M7: 3,291,752 km (0.099 R)
• M8: 5,231,587 km (0.081 R)
• M9: 5,702,521 km (0.108 R)
• M10: 6,481,777 km (0.112 R)
• M11: 7,919,113 km (0.109 R)
• M12: 8,987,690 km (0.085 R)
• M13: 9,191,892 km (0.052 R)
• M14: 9,930,905 km (0.063 R)
• M15: 10,482,622 km (0.12 R)
• M16: 11,112,878 km (0.087 R)
• M17: 11,767,967 km (0.119 R)
• M18: 12,702,355 km (0.096 R)
• M19: 15,507,465 km (0.084 R)
• M20: 20,581,226 km (0.101 R)
• M21: 24,220,194 km (0.113 R)
• M22: 25,726,944 km (0.065 R)
• M23: 29,708,641 km (0.085 R)
• M24: 32,860,668 km (0.104 R)
• M25: 35,715,594 km (0.1 R)
• M26: 36,099,761 km (0.094 R)
• M27: 39,545,599 km (0.099 R)
• M28: 40,648,434 km (0.112 R)
• M29: 46,016,604 km (0.064 R)
• M30: 48,165,129 km (0.079 R)
• M31: 49,581,073 km (0.119 R)
• M32: 58,309,211 km (0.083 R)
• M33: 58,841,929 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.7

Radius: 4.5

Gravity: 39.29 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.51 AU - 12.05 AU

Year: 20396 Days

Day: 22.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 81,036,060 km

• M1: 57,894 km (0.079 R)
• M2: 334,800 km (0.099 R)
• M3: 1,054,216 km (0.052 R)
• M4: 1,872,068 km (0.12 R)
• M5: 2,072,080 km (0.095 R)
• M6: 2,563,060 km (0.108 R)
• M7: 4,026,277 km (0.086 R)
• M8: 4,360,628 km (0.087 R)
• M9: 5,008,986 km (0.096 R)
• M10: 5,719,276 km (0.05 R)
• M11: 6,539,521 km (0.108 R)
• M12: 6,860,558 km (0.105 R)
• M13: 7,337,327 km (0.114 R)
• M14: 7,583,864 km (0.102 R)
• M15: 7,835,936 km (0.118 R)
• M16: 8,409,943 km (0.068 R)
• M17: 9,294,516 km (0.116 R)
• M18: 9,467,002 km (0.12 R)
• M19: 10,734,994 km (0.102 R)
• M20: 11,574,238 km (0.101 R)
• M21: 12,666,302 km (0.108 R)
• M22: 14,895,610 km (0.086 R)
• M23: 15,211,261 km (0.099 R)
• M24: 17,200,165 km (0.036 R)
• M25: 20,692,976 km (0.104 R)
• M26: 21,185,003 km (0.11 R)
• M27: 22,812,329 km (0.045 R)
• M28: 23,126,335 km (0.036 R)
• M29: 28,190,821 km (0.106 R)
• M30: 29,039,639 km (0.087 R)
• M31: 29,780,598 km (0.093 R)
• M32: 31,558,568 km (0.043 R)
• M33: 32,210,366 km (0.114 R)
• M34: 32,605,754 km (0.096 R)
• M35: 38,337,596 km (0.116 R)
• M36: 40,591,886 km (0.092 R)
• M37: 46,694,881 km (0.063 R)
• M38: 52,467,414 km (0.09 R)
• M39: 55,997,625 km (0.114 R)
• M40: 57,917,564 km (0.074 R)
• M41: 62,295,246 km (0.105 R)
• M42: 63,114,145 km (0.072 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 15,426 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit