🌌 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: 133

Radius: 14.3

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.55 AU - 0.77 AU

Year: 358 Days

Day: 13 Hours

Environment

Temp: -156 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 19,951,628 km

• M1: 178,021 km (0.105 R)
• M2: 799,301 km (0.107 R)
• M3: 1,373,757 km (0.042 R)
• M4: 2,406,731 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.1

Radius: 9.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.26 AU - 1.74 AU

Year: 1225 Days

Day: 11.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,951,628 km

• M1: 114,592 km (0.11 R)
• M2: 488,587 km (0.1 R)
• M3: 788,231 km (0.088 R)
• M4: 1,103,883 km (0.105 R)
• M5: 1,732,194 km (0.077 R)
• M6: 2,142,989 km (0.11 R)
• M7: 2,512,945 km (0.061 R)
• M8: 2,836,824 km (0.063 R)
• M9: 3,540,383 km (0.099 R)
• M10: 4,577,994 km (0.117 R)
• M11: 6,420,441 km (0.114 R)
• M12: 6,731,904 km (0.064 R)
• M13: 7,218,247 km (0.066 R)
• M14: 7,506,522 km (0.101 R)
• M15: 8,080,679 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.1

Radius: 11.8

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.98 AU - 2.42 AU

Year: 2176 Days

Day: 7.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 19,951,628 km

• M1: 146,756 km (0.049 R)
• M2: 543,639 km (0.103 R)
• M3: 921,822 km (0.048 R)
• M4: 1,318,855 km (0.078 R)
• M5: 1,689,708 km (0.09 R)
• M6: 2,081,505 km (0.107 R)
• M7: 2,956,802 km (0.066 R)
• M8: 3,623,859 km (0.096 R)
• M9: 4,264,587 km (0.119 R)
• M10: 5,499,517 km (0.095 R)
• M11: 8,141,565 km (0.109 R)
• M12: 8,597,090 km (0.068 R)
• M13: 9,956,486 km (0.087 R)
• M14: 10,668,423 km (0.108 R)
• M15: 11,333,983 km (0.099 R)
• M16: 12,791,516 km (0.078 R)
• M17: 14,370,371 km (0.12 R)
• M18: 17,003,144 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.4

Radius: 13.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.24 AU - 2.3 AU

Year: 2281 Days

Day: 11.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,951,628 km

• M1: 164,558 km (0.047 R)
• M2: 576,999 km (0.064 R)
• M3: 1,185,713 km (0.094 R)
• M4: 1,611,917 km (0.055 R)
• M5: 2,031,838 km (0.027 R)
• M6: 5,344,534 km (0.115 R)
• M7: 8,780,497 km (0.044 R)
• M8: 11,819,129 km (0.093 R)
• M9: 12,304,275 km (0.104 R)
• M10: 12,919,422 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.4

Radius: 11.4

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.09 AU - 4.03 AU

Year: 4479 Days

Day: 10.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 19,951,628 km

• M1: 142,866 km (0.066 R)
• M2: 524,041 km (0.068 R)
• M3: 897,886 km (0.084 R)
• M4: 1,340,696 km (0.118 R)
• M5: 3,102,959 km (0.108 R)
• M6: 3,713,767 km (0.062 R)
• M7: 4,071,456 km (0.106 R)
• M8: 5,769,990 km (0.096 R)
• M9: 6,159,692 km (0.106 R)
• M10: 6,892,572 km (0.112 R)
• M11: 7,934,671 km (0.082 R)
• M12: 9,079,095 km (0.048 R)
• M13: 9,943,322 km (0.117 R)
• M14: 11,272,200 km (0.102 R)
• M15: 12,516,704 km (0.097 R)
• M16: 13,692,095 km (0.097 R)
• M17: 16,320,679 km (0.098 R)
• M18: 17,535,114 km (0.083 R)
• M19: 17,974,184 km (0.077 R)
• M20: 19,136,709 km (0.047 R)
• M21: 21,899,034 km (0.118 R)
• M22: 24,060,723 km (0.112 R)
• M23: 24,447,434 km (0.113 R)
• M24: 25,552,064 km (0.1 R)
• M25: 28,891,388 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.1

Radius: 13.2

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.77 AU - 4.73 AU

Year: 5843 Days

Day: 12.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,951,628 km

• M1: 171,290 km (0.087 R)
• M2: 584,479 km (0.112 R)
• M3: 1,307,336 km (0.052 R)
• M4: 2,259,975 km (0.095 R)
• M5: 3,012,901 km (0.106 R)
• M6: 3,889,694 km (0.079 R)
• M7: 4,669,997 km (0.099 R)
• M8: 7,151,526 km (0.079 R)
• M9: 8,229,379 km (0.097 R)
• M10: 9,378,440 km (0.063 R)
• M11: 9,866,877 km (0.045 R)
• M12: 10,335,717 km (0.101 R)
• M13: 11,474,755 km (0.04 R)
• M14: 16,027,168 km (0.114 R)
• M15: 17,551,421 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.2

Radius: 9.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.82 AU - 4.68 AU

Year: 5843 Days

Day: 10.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 19,951,628 km

• M1: 123,269 km (0.043 R)
• M2: 528,230 km (0.11 R)
• M3: 1,101,340 km (0.101 R)
• M4: 1,680,732 km (0.096 R)
• M5: 2,113,220 km (0.079 R)
• M6: 2,469,113 km (0.099 R)
• M7: 4,055,897 km (0.049 R)
• M8: 7,242,631 km (0.089 R)
• M9: 7,661,206 km (0.073 R)
• M10: 8,207,238 km (0.115 R)
• M11: 9,015,067 km (0.056 R)
• M12: 9,748,994 km (0.113 R)
• M13: 11,014,442 km (0.053 R)
• M14: 11,948,831 km (0.099 R)
• M15: 12,985,843 km (0.094 R)
• M16: 15,927,087 km (0.115 R)
• M17: 16,516,652 km (0.113 R)
• M18: 19,021,968 km (0.086 R)
• M19: 20,023,376 km (0.114 R)
• M20: 21,271,172 km (0.045 R)
• M21: 22,423,075 km (0.075 R)
• M22: 22,865,735 km (0.072 R)
• M23: 25,724,700 km (0.059 R)
• M24: 27,198,239 km (0.063 R)
• M25: 29,074,645 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.7

Radius: 12.7

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.93 AU - 4.65 AU

Year: 5925 Days

Day: 13.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,951,628 km

• M1: 168,148 km (0.104 R)
• M2: 984,952 km (0.066 R)
• M3: 2,213,001 km (0.12 R)
• M4: 3,005,870 km (0.061 R)
• M5: 6,717,094 km (0.078 R)
• M6: 7,763,531 km (0.069 R)
• M7: 8,408,597 km (0.078 R)
• M8: 10,330,331 km (0.113 R)
• M9: 12,270,915 km (0.112 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 19,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit