🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.3

Radius: 8.1

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.72 AU - 0.74 AU

Year: 431 Days

Day: 7.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 79,791,615 km

• M1: 109,655 km (0.087 R)
• M2: 684,111 km (0.079 R)
• M3: 1,216,829 km (0.076 R)
• M4: 2,344,348 km (0.119 R)
• M5: 2,740,783 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.2

Radius: 13

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.2 AU - 1.48 AU

Year: 1071 Days

Day: 7.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,791,615 km

• M1: 163,361 km (0.078 R)
• M2: 605,722 km (0.082 R)
• M3: 1,012,329 km (0.1 R)
• M4: 1,440,478 km (0.113 R)
• M5: 1,856,061 km (0.061 R)
• M6: 2,275,533 km (0.114 R)
• M7: 3,310,750 km (0.087 R)
• M8: 4,407,153 km (0.069 R)
• M9: 5,923,178 km (0.114 R)
• M10: 7,840,724 km (0.087 R)
• M11: 8,730,083 km (0.1 R)
• M12: 10,204,370 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.6

Radius: 12

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.46 AU - 4.56 AU

Year: 5543 Days

Day: 11.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,791,615 km

• M1: 164,857 km (0.046 R)
• M2: 769,531 km (0.079 R)
• M3: 1,239,269 km (0.083 R)
• M4: 1,915,152 km (0.107 R)
• M5: 2,590,886 km (0.033 R)
• M6: 3,378,070 km (0.11 R)
• M7: 4,002,790 km (0.045 R)
• M8: 4,495,266 km (0.113 R)
• M9: 4,890,953 km (0.099 R)
• M10: 5,281,254 km (0.061 R)
• M11: 5,752,936 km (0.119 R)
• M12: 6,546,253 km (0.064 R)
• M13: 7,777,892 km (0.117 R)
• M14: 8,910,648 km (0.047 R)
• M15: 10,195,095 km (0.103 R)
• M16: 11,845,459 km (0.062 R)
• M17: 12,399,120 km (0.116 R)
• M18: 13,504,050 km (0.098 R)
• M19: 14,389,221 km (0.111 R)
• M20: 16,091,645 km (0.103 R)
• M21: 19,198,493 km (0.085 R)
• M22: 21,553,313 km (0.093 R)
• M23: 22,455,538 km (0.087 R)
• M24: 23,382,596 km (0.026 R)
• M25: 25,728,590 km (0.118 R)
• M26: 26,317,557 km (0.118 R)
• M27: 28,405,494 km (0.062 R)
• M28: 28,853,989 km (0.045 R)
• M29: 30,507,793 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.1

Radius: 14.2

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.64 AU - 4.72 AU

Year: 5899 Days

Day: 12.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,791,615 km

• M1: 176,974 km (0.105 R)
• M2: 1,437,636 km (0.107 R)
• M3: 3,191,521 km (0.115 R)
• M4: 5,915,549 km (0.079 R)
• M5: 8,216,962 km (0.115 R)
• M6: 8,787,529 km (0.034 R)
• M7: 10,308,640 km (0.084 R)
• M8: 11,339,070 km (0.053 R)
• M9: 11,903,353 km (0.1 R)
• M10: 14,733,745 km (0.088 R)
• M11: 16,453,671 km (0.032 R)
• M12: 22,857,208 km (0.052 R)
• M13: 23,759,283 km (0.112 R)
• M14: 27,606,791 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.3

Radius: 12

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.85 AU - 5.47 AU

Year: 8091 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,791,615 km

• M1: 151,692 km (0.09 R)
• M2: 612,902 km (0.111 R)
• M3: 1,527,245 km (0.037 R)
• M4: 2,179,043 km (0.1 R)
• M5: 2,966,825 km (0.095 R)
• M6: 4,120,524 km (0.103 R)
• M7: 4,681,815 km (0.039 R)
• M8: 5,992,592 km (0.038 R)
• M9: 6,382,743 km (0.119 R)
• M10: 8,032,209 km (0.083 R)
• M11: 8,774,813 km (0.078 R)
• M12: 10,097,258 km (0.085 R)
• M13: 13,856,503 km (0.042 R)
• M14: 15,578,673 km (0.107 R)
• M15: 16,319,781 km (0.036 R)
• M16: 16,803,431 km (0.074 R)
• M17: 17,654,942 km (0.079 R)
• M18: 18,834,671 km (0.114 R)
• M19: 22,775,079 km (0.04 R)
• M20: 24,440,702 km (0.111 R)
• M21: 27,330,334 km (0.103 R)
• M22: 30,026,686 km (0.04 R)
• M23: 30,544,744 km (0.036 R)
• M24: 39,791,538 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154.1

Radius: 5.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.56 AU - 9.54 AU

Year: 15765 Days

Day: 24.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,791,615 km

• M1: 73,303 km (0.094 R)
• M2: 407,953 km (0.03 R)
• M3: 645,964 km (0.04 R)
• M4: 1,105,977 km (0.059 R)
• M5: 1,364,931 km (0.085 R)
• M6: 1,974,393 km (0.04 R)
• M7: 2,890,530 km (0.112 R)
• M8: 7,684,543 km (0.102 R)
• M9: 12,141,662 km (0.114 R)
• M10: 14,002,510 km (0.049 R)
• M11: 14,420,337 km (0.108 R)
• M12: 20,329,902 km (0.095 R)
• M13: 35,273,532 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 824.5

Radius: 3.6

Gravity: 63.62 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.2 AU - 10.4 AU

Year: 19577 Days

Day: 20.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,791,615 km

• M1: 49,517 km (0.11 R)
• M2: 626,965 km (0.115 R)
• M3: 772,823 km (0.116 R)
• M4: 1,614,460 km (0.081 R)
• M5: 2,732,106 km (0.077 R)
• M6: 3,179,104 km (0.08 R)
• M7: 3,434,767 km (0.115 R)
• M8: 4,250,225 km (0.106 R)
• M9: 4,922,368 km (0.084 R)
• M10: 5,421,277 km (0.112 R)
• M11: 6,209,957 km (0.06 R)
• M12: 6,884,344 km (0.092 R)
• M13: 13,974,685 km (0.069 R)
• M14: 18,145,773 km (0.095 R)
• M15: 19,890,383 km (0.1 R)
• M16: 20,080,373 km (0.093 R)
• M17: 20,463,792 km (0.114 R)
• M18: 27,751,153 km (0.093 R)
• M19: 28,226,725 km (0.098 R)
• M20: 31,968,616 km (0.116 R)
• M21: 38,180,668 km (0.116 R)
• M22: 46,305,478 km (0.089 R)
• M23: 55,321,592 km (0.062 R)
• M24: 57,793,547 km (0.1 R)
• M25: 61,135,713 km (0.066 R)
• M26: 61,738,592 km (0.054 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 12,505 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit