🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.3

Radius: 12.2

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.59 AU - 0.61 AU

Year: 321 Days

Day: 12.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,813,168 km

• M1: 151,692 km (0.081 R)
• M2: 624,721 km (0.08 R)
• M3: 1,051,224 km (0.084 R)
• M4: 1,617,452 km (0.053 R)
• M5: 2,000,423 km (0.033 R)
• M6: 2,435,753 km (0.116 R)
• M7: 2,965,329 km (0.118 R)
• M8: 3,559,382 km (0.103 R)
• M9: 4,205,346 km (0.103 R)
• M10: 4,697,224 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.4

Radius: 9.4

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.61 AU - 0.79 AU

Year: 404 Days

Day: 13.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,813,168 km

• M1: 116,836 km (0.097 R)
• M2: 415,583 km (0.12 R)
• M3: 837,898 km (0.09 R)
• M4: 1,208,601 km (0.092 R)
• M5: 1,581,698 km (0.105 R)
• M6: 2,047,995 km (0.077 R)
• M7: 2,392,818 km (0.082 R)
• M8: 3,410,682 km (0.068 R)
• M9: 3,705,539 km (0.094 R)
• M10: 4,304,679 km (0.101 R)
• M11: 4,679,571 km (0.047 R)
• M12: 5,266,593 km (0.069 R)
• M13: 5,730,047 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 12.4

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 14.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,813,168 km

• M1: 154,235 km (0.12 R)
• M2: 599,289 km (0.094 R)
• M3: 1,052,870 km (0.071 R)
• M4: 1,511,986 km (0.114 R)
• M5: 2,114,566 km (0.047 R)
• M6: 2,571,737 km (0.114 R)
• M7: 3,016,043 km (0.043 R)
• M8: 3,599,474 km (0.06 R)
• M9: 4,006,680 km (0.107 R)
• M10: 4,401,020 km (0.069 R)
• M11: 4,805,981 km (0.1 R)
• M12: 5,219,470 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.8

Radius: 13.8

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.06 AU - 1.6 AU

Year: 1059 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,813,168 km

• M1: 172,187 km (0.089 R)
• M2: 640,728 km (0.086 R)
• M3: 1,960,031 km (0.103 R)
• M4: 2,433,209 km (0.093 R)
• M5: 2,983,131 km (0.074 R)
• M6: 4,185,000 km (0.067 R)
• M7: 5,896,550 km (0.083 R)
• M8: 6,439,740 km (0.088 R)
• M9: 7,207,925 km (0.051 R)
• M10: 7,702,645 km (0.101 R)
• M11: 8,514,512 km (0.104 R)
• M12: 9,675,093 km (0.107 R)
• M13: 10,371,022 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.3

Radius: 8.1

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.32 AU - 2.88 AU

Year: 2894 Days

Day: 13.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,813,168 km

• M1: 100,679 km (0.076 R)
• M2: 391,797 km (0.119 R)
• M3: 673,340 km (0.072 R)
• M4: 1,034,320 km (0.066 R)
• M5: 1,522,158 km (0.028 R)
• M6: 2,526,110 km (0.079 R)
• M7: 3,128,690 km (0.085 R)
• M8: 3,569,555 km (0.064 R)
• M9: 3,955,218 km (0.112 R)
• M10: 4,247,682 km (0.102 R)
• M11: 5,783,753 km (0.106 R)
• M12: 7,163,644 km (0.034 R)
• M13: 7,991,369 km (0.073 R)
• M14: 8,750,428 km (0.116 R)
• M15: 9,556,611 km (0.103 R)
• M16: 10,374,912 km (0.066 R)
• M17: 10,971,059 km (0.026 R)
• M18: 11,748,220 km (0.119 R)
• M19: 12,561,434 km (0.064 R)
• M20: 13,152,645 km (0.091 R)
• M21: 15,464,381 km (0.06 R)
• M22: 16,291,657 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.5

Radius: 9

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.96 AU - 3.34 AU

Year: 3859 Days

Day: 11.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,813,168 km

• M1: 111,899 km (0.106 R)
• M2: 448,644 km (0.05 R)
• M3: 792,869 km (0.06 R)
• M4: 1,488,948 km (0.106 R)
• M5: 2,370,378 km (0.044 R)
• M6: 2,925,686 km (0.111 R)
• M7: 3,275,745 km (0.073 R)
• M8: 3,671,431 km (0.073 R)
• M9: 4,098,982 km (0.072 R)
• M10: 4,436,026 km (0.1 R)
• M11: 5,031,575 km (0.088 R)
• M12: 5,465,409 km (0.06 R)
• M13: 7,484,681 km (0.078 R)
• M14: 7,809,009 km (0.036 R)
• M15: 8,111,945 km (0.08 R)
• M16: 8,677,275 km (0.043 R)
• M17: 9,068,473 km (0.096 R)
• M18: 9,642,929 km (0.114 R)
• M19: 11,473,558 km (0.093 R)
• M20: 12,594,196 km (0.112 R)
• M21: 14,959,039 km (0.076 R)
• M22: 16,344,166 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.9

Radius: 12.9

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.15 AU - 3.93 AU

Year: 4597 Days

Day: 14 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,813,168 km

• M1: 160,519 km (0.093 R)
• M2: 841,638 km (0.107 R)
• M3: 1,447,509 km (0.079 R)
• M4: 1,958,087 km (0.098 R)
• M5: 2,978,045 km (0.082 R)
• M6: 3,756,103 km (0.102 R)
• M7: 4,303,033 km (0.049 R)
• M8: 4,951,091 km (0.105 R)
• M9: 6,072,776 km (0.089 R)
• M10: 6,859,362 km (0.088 R)
• M11: 8,182,704 km (0.06 R)
• M12: 9,217,024 km (0.054 R)
• M13: 10,417,098 km (0.087 R)
• M14: 10,825,800 km (0.116 R)
• M15: 11,894,377 km (0.118 R)
• M16: 12,938,421 km (0.111 R)
• M17: 15,053,286 km (0.078 R)
• M18: 16,057,536 km (0.104 R)
• M19: 16,659,069 km (0.025 R)
• M20: 20,083,065 km (0.112 R)
• M21: 21,628,112 km (0.08 R)
• M22: 23,251,099 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250

Radius: 14.8

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.6 AU - 5.88 AU

Year: 8280 Days

Day: 5.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,813,168 km

• M1: 188,344 km (0.057 R)
• M2: 730,187 km (0.109 R)
• M3: 1,233,734 km (0.071 R)
• M4: 1,818,362 km (0.086 R)
• M5: 4,703,955 km (0.109 R)
• M6: 5,399,586 km (0.073 R)
• M7: 7,583,565 km (0.103 R)
• M8: 21,133,392 km (0.113 R)
• M9: 29,047,718 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577.9

Radius: 3.2

Gravity: 56.44 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 5.85 AU - 5.91 AU

Year: 9842 Days

Day: 22.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,813,168 km

• M1: 40,541 km (0.076 R)
• M2: 213,027 km (0.114 R)
• M3: 930,948 km (0.069 R)
• M4: 1,373,608 km (0.095 R)
• M5: 1,693,149 km (0.079 R)
• M6: 2,438,894 km (0.05 R)
• M7: 3,193,915 km (0.119 R)
• M8: 3,699,855 km (0.094 R)
• M9: 5,944,122 km (0.086 R)
• M10: 8,331,554 km (0.076 R)
• M11: 10,152,609 km (0.069 R)
• M12: 10,607,686 km (0.078 R)
• M13: 10,762,220 km (0.1 R)
• M14: 17,314,607 km (0.093 R)
• M15: 17,817,705 km (0.087 R)
• M16: 18,109,570 km (0.026 R)
• M17: 28,518,141 km (0.083 R)
• M18: 29,727,042 km (0.116 R)
• M19: 32,788,562 km (0.082 R)
• M20: 37,824,475 km (0.082 R)
• M21: 40,525,315 km (0.086 R)
• M22: 43,747,205 km (0.107 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: 457 - 17,004 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit