🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.5

Radius: 13.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.74 AU - 1.02 AU

Year: 570 Days

Day: 10.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,652,640 km

• M1: 169,195 km (0.04 R)
• M2: 669,899 km (0.079 R)
• M3: 1,234,182 km (0.085 R)
• M4: 1,710,203 km (0.112 R)
• M5: 2,700,391 km (0.096 R)
• M6: 3,393,179 km (0.091 R)
• M7: 4,790,573 km (0.056 R)
• M8: 5,244,303 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.5

Radius: 12.8

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.75 AU - 1.19 AU

Year: 659 Days

Day: 10.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,652,640 km

• M1: 159,771 km (0.105 R)
• M2: 569,220 km (0.047 R)
• M3: 1,025,942 km (0.107 R)
• M4: 1,499,120 km (0.072 R)
• M5: 2,072,678 km (0.047 R)
• M6: 2,484,970 km (0.079 R)
• M7: 3,681,903 km (0.067 R)
• M8: 4,082,526 km (0.109 R)
• M9: 4,955,579 km (0.067 R)
• M10: 6,921,594 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.4

Radius: 8.6

Gravity: 12.59 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.34 AU - 3.44 AU

Year: 3391 Days

Day: 7.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,652,640 km

• M1: 106,962 km (0.084 R)
• M2: 453,581 km (0.05 R)
• M3: 753,824 km (0.087 R)
• M4: 1,238,222 km (0.12 R)
• M5: 2,053,380 km (0.078 R)
• M6: 2,561,415 km (0.092 R)
• M7: 3,283,075 km (0.115 R)
• M8: 3,722,893 km (0.117 R)
• M9: 4,179,017 km (0.042 R)
• M10: 5,072,864 km (0.109 R)
• M11: 5,972,994 km (0.083 R)
• M12: 6,722,928 km (0.091 R)
• M13: 7,669,733 km (0.057 R)
• M14: 9,428,406 km (0.113 R)
• M15: 10,869,632 km (0.065 R)
• M16: 11,174,662 km (0.081 R)
• M17: 11,665,492 km (0.104 R)
• M18: 12,452,377 km (0.093 R)
• M19: 14,182,925 km (0.119 R)
• M20: 15,240,881 km (0.078 R)
• M21: 16,809,116 km (0.109 R)
• M22: 18,420,435 km (0.076 R)
• M23: 20,328,855 km (0.115 R)
• M24: 22,576,413 km (0.042 R)
• M25: 23,073,527 km (0.081 R)
• M26: 24,311,449 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.4

Radius: 11.6

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.31 AU - 3.51 AU

Year: 3426 Days

Day: 8.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,652,640 km

• M1: 144,661 km (0.086 R)
• M2: 822,190 km (0.111 R)
• M3: 1,372,411 km (0.087 R)
• M4: 1,916,349 km (0.116 R)
• M5: 3,562,075 km (0.063 R)
• M6: 5,178,929 km (0.09 R)
• M7: 6,799,672 km (0.1 R)
• M8: 8,767,333 km (0.069 R)
• M9: 10,179,387 km (0.039 R)
• M10: 11,854,883 km (0.047 R)
• M11: 13,195,579 km (0.099 R)
• M12: 14,861,651 km (0.119 R)
• M13: 15,650,780 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.4

Radius: 14.4

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.62 AU - 4.04 AU

Year: 4194 Days

Day: 5.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,652,640 km

• M1: 179,368 km (0.075 R)
• M2: 742,903 km (0.102 R)
• M3: 1,553,275 km (0.103 R)
• M4: 2,697,549 km (0.104 R)
• M5: 4,112,745 km (0.064 R)
• M6: 4,664,910 km (0.059 R)
• M7: 6,404,883 km (0.071 R)
• M8: 7,217,349 km (0.072 R)
• M9: 8,969,739 km (0.108 R)
• M10: 9,778,166 km (0.078 R)
• M11: 10,459,584 km (0.089 R)
• M12: 15,516,740 km (0.09 R)
• M13: 18,412,057 km (0.104 R)
• M14: 21,721,760 km (0.09 R)
• M15: 23,933,266 km (0.048 R)
• M16: 25,647,957 km (0.064 R)
• M17: 27,276,629 km (0.117 R)
• M18: 27,778,380 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.1

Radius: 11.7

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.05 AU - 3.85 AU

Year: 4423 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,652,640 km

• M1: 145,559 km (0.083 R)
• M2: 562,189 km (0.113 R)
• M3: 1,158,336 km (0.116 R)
• M4: 1,648,569 km (0.1 R)
• M5: 2,138,502 km (0.051 R)
• M6: 3,585,263 km (0.045 R)
• M7: 4,221,502 km (0.034 R)
• M8: 5,121,483 km (0.08 R)
• M9: 8,248,079 km (0.077 R)
• M10: 8,831,211 km (0.066 R)
• M11: 11,161,497 km (0.109 R)
• M12: 11,778,588 km (0.065 R)
• M13: 15,154,563 km (0.088 R)
• M14: 17,691,444 km (0.102 R)
• M15: 19,329,092 km (0.039 R)
• M16: 20,639,869 km (0.062 R)
• M17: 27,321,209 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.9

Radius: 14.2

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.31 AU - 3.91 AU

Year: 4734 Days

Day: 13.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,652,640 km

• M1: 177,124 km (0.041 R)
• M2: 726,148 km (0.101 R)
• M3: 1,867,729 km (0.08 R)
• M4: 2,584,602 km (0.038 R)
• M5: 3,498,795 km (0.039 R)
• M6: 4,021,340 km (0.079 R)
• M7: 5,025,740 km (0.108 R)
• M8: 6,050,486 km (0.097 R)
• M9: 6,687,623 km (0.029 R)
• M10: 7,661,206 km (0.079 R)
• M11: 8,303,430 km (0.085 R)
• M12: 10,206,464 km (0.088 R)
• M13: 11,846,955 km (0.094 R)
• M14: 14,350,176 km (0.073 R)
• M15: 16,961,556 km (0.08 R)
• M16: 19,938,255 km (0.092 R)
• M17: 22,016,917 km (0.072 R)
• M18: 23,527,257 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.7

Radius: 6.4

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.2 AU - 9.78 AU

Year: 18606 Days

Day: 19.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,652,640 km

• M1: 80,484 km (0.089 R)
• M2: 311,313 km (0.101 R)
• M3: 574,157 km (0.09 R)
• M4: 1,230,592 km (0.064 R)
• M5: 1,933,403 km (0.115 R)
• M6: 2,187,420 km (0.085 R)
• M7: 2,653,567 km (0.086 R)
• M8: 3,782,283 km (0.095 R)
• M9: 4,181,859 km (0.077 R)
• M10: 4,546,279 km (0.082 R)
• M11: 9,908,615 km (0.102 R)
• M12: 11,289,852 km (0.105 R)
• M13: 12,794,657 km (0.113 R)
• M14: 17,247,438 km (0.064 R)
• M15: 17,711,490 km (0.088 R)
• M16: 27,341,554 km (0.084 R)
• M17: 30,931,005 km (0.079 R)
• M18: 36,821,571 km (0.089 R)
• M19: 40,637,813 km (0.086 R)
• M20: 53,816,188 km (0.076 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 12,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit