🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.51 AU - 0.67 AU

Year: 297 Days

Day: 42 Hours

Environment

Temp: -118 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,179,050 km

• M1: 30,967 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.8

Radius: 8.3

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.84 AU - 1.2 AU

Year: 676 Days

Day: 7.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 75.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,179,050 km

• M1: 103,223 km (0.058 R)
• M2: 454,927 km (0.113 R)
• M3: 956,978 km (0.069 R)
• M4: 1,263,055 km (0.078 R)
• M5: 1,891,964 km (0.064 R)
• M6: 2,691,714 km (0.113 R)
• M7: 3,286,067 km (0.086 R)
• M8: 3,671,431 km (0.112 R)
• M9: 4,040,788 km (0.025 R)
• M10: 4,370,053 km (0.12 R)
• M11: 4,666,406 km (0.104 R)
• M12: 6,355,815 km (0.09 R)
• M13: 7,044,414 km (0.104 R)
• M14: 7,592,840 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.7

Radius: 10.3

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.96 AU - 2.24 AU

Year: 1996 Days

Day: 11.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 65.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,179,050 km

• M1: 129,253 km (0.068 R)
• M2: 474,225 km (0.112 R)
• M3: 974,331 km (0.103 R)
• M4: 1,419,385 km (0.106 R)
• M5: 1,928,017 km (0.098 R)
• M6: 2,275,832 km (0.055 R)
• M7: 2,603,901 km (0.058 R)
• M8: 3,475,757 km (0.098 R)
• M9: 3,962,997 km (0.042 R)
• M10: 4,424,058 km (0.069 R)
• M11: 5,114,003 km (0.05 R)
• M12: 6,136,056 km (0.119 R)
• M13: 6,497,784 km (0.114 R)
• M14: 7,643,853 km (0.105 R)
• M15: 8,089,954 km (0.097 R)
• M16: 8,721,107 km (0.068 R)
• M17: 9,266,990 km (0.079 R)
• M18: 10,427,121 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.9

Radius: 9

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.29 AU - 2.53 AU

Year: 2454 Days

Day: 11.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,179,050 km

• M1: 111,899 km (0.119 R)
• M2: 518,207 km (0.061 R)
• M3: 830,867 km (0.106 R)
• M4: 1,126,322 km (0.074 R)
• M5: 1,534,126 km (0.08 R)
• M6: 1,867,131 km (0.091 R)
• M7: 2,635,615 km (0.058 R)
• M8: 2,934,362 km (0.032 R)
• M9: 3,600,821 km (0.109 R)
• M10: 4,386,060 km (0.098 R)
• M11: 5,529,287 km (0.071 R)
• M12: 5,969,105 km (0.095 R)
• M13: 6,831,088 km (0.081 R)
• M14: 7,398,961 km (0.079 R)
• M15: 7,678,859 km (0.095 R)
• M16: 8,161,013 km (0.115 R)
• M17: 8,493,569 km (0.113 R)
• M18: 8,974,376 km (0.112 R)
• M19: 9,400,880 km (0.058 R)
• M20: 10,448,663 km (0.111 R)
• M21: 11,366,147 km (0.082 R)
• M22: 12,077,934 km (0.071 R)
• M23: 12,510,421 km (0.078 R)
• M24: 12,908,501 km (0.093 R)
• M25: 15,426,233 km (0.116 R)
• M26: 15,935,614 km (0.108 R)
• M27: 16,246,478 km (0.047 R)

Asteroid Belt

Center: 3.5 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.2

Radius: 13.7

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.56 AU - 4.62 AU

Year: 6451 Days

Day: 8.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,179,050 km

• M1: 170,990 km (0.099 R)
• M2: 702,661 km (0.112 R)
• M3: 1,292,675 km (0.116 R)
• M4: 1,931,608 km (0.102 R)
• M5: 2,415,108 km (0.102 R)
• M6: 2,942,141 km (0.104 R)
• M7: 4,158,671 km (0.118 R)
• M8: 4,815,107 km (0.109 R)
• M9: 5,837,608 km (0.09 R)
• M10: 6,465,620 km (0.095 R)
• M11: 7,173,218 km (0.081 R)
• M12: 12,301,433 km (0.11 R)
• M13: 14,039,461 km (0.097 R)
• M14: 16,543,131 km (0.12 R)
• M15: 17,419,026 km (0.06 R)
• M16: 17,998,120 km (0.059 R)
• M17: 18,790,390 km (0.057 R)
• M18: 20,729,478 km (0.102 R)
• M19: 21,234,371 km (0.077 R)
• M20: 21,673,740 km (0.052 R)
• M21: 26,155,841 km (0.072 R)
• M22: 26,660,884 km (0.061 R)
• M23: 27,172,508 km (0.107 R)
• M24: 28,568,855 km (0.097 R)
• M25: 30,104,477 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.8

Radius: 9.2

Gravity: 10.82 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.77 AU - 5.91 AU

Year: 8095 Days

Day: 5.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 54,179,050 km

• M1: 114,592 km (0.111 R)
• M2: 453,581 km (0.07 R)
• M3: 946,655 km (0.072 R)
• M4: 1,241,812 km (0.072 R)
• M5: 1,881,044 km (0.097 R)
• M6: 2,450,712 km (0.073 R)
• M7: 3,176,262 km (0.079 R)
• M8: 3,601,718 km (0.103 R)
• M9: 4,684,807 km (0.097 R)
• M10: 6,400,096 km (0.119 R)
• M11: 6,772,595 km (0.096 R)
• M12: 7,199,098 km (0.094 R)
• M13: 8,106,110 km (0.078 R)
• M14: 8,812,063 km (0.046 R)
• M15: 9,510,685 km (0.119 R)
• M16: 9,849,075 km (0.056 R)
• M17: 11,230,611 km (0.112 R)
• M18: 11,663,548 km (0.119 R)
• M19: 12,220,500 km (0.049 R)
• M20: 12,620,824 km (0.114 R)
• M21: 13,207,846 km (0.072 R)
• M22: 13,751,784 km (0.084 R)
• M23: 17,621,283 km (0.047 R)
• M24: 21,909,207 km (0.115 R)
• M25: 22,585,838 km (0.113 R)
• M26: 24,069,849 km (0.106 R)
• M27: 28,310,499 km (0.066 R)
• M28: 28,609,695 km (0.065 R)
• M29: 29,417,972 km (0.106 R)
• M30: 30,345,479 km (0.096 R)
• M31: 32,804,270 km (0.109 R)
• M32: 34,704,761 km (0.1 R)
• M33: 35,047,640 km (0.115 R)
• M34: 39,712,849 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.9

Radius: 7.5

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.2 AU - 7.5 AU

Year: 13072 Days

Day: 23.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 54,179,050 km

• M1: 99,183 km (0.056 R)
• M2: 645,964 km (0.113 R)
• M3: 1,022,053 km (0.083 R)
• M4: 1,865,485 km (0.037 R)
• M5: 2,788,654 km (0.116 R)
• M6: 3,903,308 km (0.042 R)
• M7: 4,393,540 km (0.096 R)
• M8: 5,121,034 km (0.113 R)
• M9: 5,672,901 km (0.115 R)
• M10: 6,417,599 km (0.119 R)
• M11: 7,698,157 km (0.086 R)
• M12: 11,314,685 km (0.097 R)
• M13: 12,674,081 km (0.086 R)
• M14: 17,630,259 km (0.108 R)
• M15: 19,533,144 km (0.073 R)
• M16: 20,534,103 km (0.079 R)
• M17: 20,789,616 km (0.101 R)
• M18: 21,921,324 km (0.113 R)
• M19: 23,002,169 km (0.046 R)
• M20: 23,742,080 km (0.098 R)
• M21: 25,074,997 km (0.093 R)
• M22: 28,307,657 km (0.083 R)
• M23: 29,588,364 km (0.036 R)
• M24: 30,352,959 km (0.063 R)
• M25: 31,694,403 km (0.11 R)
• M26: 32,610,241 km (0.068 R)
• M27: 35,586,192 km (0.097 R)
• M28: 36,326,552 km (0.113 R)
• M29: 42,622,528 km (0.069 R)
• M30: 44,302,961 km (0.051 R)
• M31: 48,244,565 km (0.103 R)
• M32: 49,915,274 km (0.111 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 17,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit