🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.5

Radius: 8.6

Gravity: 12.97 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.49 AU - 0.55 AU

Year: 250 Days

Day: 5.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,075,398 km

• M1: 106,962 km (0.104 R)
• M2: 417,976 km (0.1 R)
• M3: 766,240 km (0.029 R)
• M4: 1,036,264 km (0.119 R)
• M5: 1,308,832 km (0.082 R)
• M6: 1,723,667 km (0.088 R)
• M7: 2,011,792 km (0.074 R)
• M8: 2,315,326 km (0.098 R)
• M9: 2,809,448 km (0.078 R)
• M10: 3,232,810 km (0.033 R)
• M11: 3,549,509 km (0.101 R)
• M12: 3,851,098 km (0.047 R)
• M13: 4,296,900 km (0.12 R)
• M14: 4,586,072 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.2

Radius: 14.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.48 AU - 0.58 AU

Year: 257 Days

Day: 9.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,075,398 km

• M1: 181,612 km (0.083 R)
• M2: 676,781 km (0.116 R)
• M3: 1,323,492 km (0.104 R)
• M4: 1,846,487 km (0.091 R)
• M5: 2,336,719 km (0.082 R)
• M6: 2,915,064 km (0.109 R)
• M7: 3,496,252 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.3

Radius: 12.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.54 AU - 0.58 AU

Year: 279 Days

Day: 13.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,075,398 km

• M1: 155,432 km (0.113 R)
• M2: 586,274 km (0.1 R)
• M3: 1,210,546 km (0.067 R)
• M4: 1,615,956 km (0.083 R)
• M5: 2,008,052 km (0.057 R)
• M6: 2,516,685 km (0.085 R)
• M7: 2,961,290 km (0.113 R)
• M8: 3,546,666 km (0.09 R)
• M9: 4,569,018 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.9

Radius: 15

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.79 AU - 0.85 AU

Year: 495 Days

Day: 13.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,075,398 km

• M1: 186,549 km (0.101 R)
• M2: 908,957 km (0.078 R)
• M3: 1,429,557 km (0.108 R)
• M4: 2,062,655 km (0.116 R)
• M5: 2,657,756 km (0.106 R)
• M6: 3,456,608 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.4

Radius: 14.9

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.97 AU - 3.03 AU

Year: 3465 Days

Day: 10.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,075,398 km

• M1: 206,595 km (0.046 R)
• M2: 733,478 km (0.072 R)
• M3: 1,285,943 km (0.107 R)
• M4: 2,157,650 km (0.083 R)
• M5: 3,236,999 km (0.078 R)
• M6: 4,084,022 km (0.12 R)
• M7: 7,140,157 km (0.081 R)
• M8: 7,999,148 km (0.105 R)
• M9: 9,889,018 km (0.062 R)
• M10: 10,378,053 km (0.041 R)
• M11: 11,595,630 km (0.069 R)
• M12: 15,493,253 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.6

Radius: 4.3

Gravity: 35.62 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7.09 AU - 10.41 AU

Year: 17260 Days

Day: 18.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,075,398 km

• M1: 58,493 km (0.119 R)
• M2: 244,144 km (0.112 R)
• M3: 470,336 km (0.098 R)
• M4: 710,739 km (0.053 R)
• M5: 1,262,756 km (0.041 R)
• M6: 1,407,267 km (0.096 R)
• M7: 1,871,619 km (0.107 R)
• M8: 2,656,709 km (0.11 R)
• M9: 2,822,313 km (0.117 R)
• M10: 3,669,187 km (0.089 R)
• M11: 6,293,134 km (0.07 R)
• M12: 6,588,141 km (0.089 R)
• M13: 8,303,280 km (0.118 R)
• M14: 9,952,447 km (0.076 R)
• M15: 10,410,965 km (0.107 R)
• M16: 11,681,649 km (0.096 R)
• M17: 13,187,950 km (0.098 R)
• M18: 15,721,390 km (0.117 R)
• M19: 19,167,526 km (0.108 R)
• M20: 21,725,201 km (0.108 R)
• M21: 24,708,183 km (0.043 R)
• M22: 26,405,371 km (0.061 R)
• M23: 27,952,961 km (0.1 R)
• M24: 28,748,971 km (0.097 R)
• M25: 31,960,987 km (0.095 R)
• M26: 40,657,261 km (0.108 R)
• M27: 46,723,305 km (0.106 R)
• M28: 50,303,481 km (0.087 R)
• M29: 51,141,827 km (0.118 R)
• M30: 52,846,495 km (0.099 R)
• M31: 55,474,032 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.6

Radius: 6.2

Gravity: 14.97 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.69 AU - 10.69 AU

Year: 20115 Days

Day: 17.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,075,398 km

• M1: 78,688 km (0.108 R)
• M2: 476,320 km (0.054 R)
• M3: 782,696 km (0.095 R)
• M4: 1,123,031 km (0.037 R)
• M5: 1,657,544 km (0.119 R)
• M6: 3,753,710 km (0.112 R)
• M7: 4,719,663 km (0.075 R)
• M8: 5,881,739 km (0.115 R)
• M9: 8,139,471 km (0.077 R)
• M10: 9,022,996 km (0.114 R)
• M11: 19,396,860 km (0.086 R)
• M12: 20,495,357 km (0.107 R)
• M13: 28,432,422 km (0.118 R)
• M14: 39,340,500 km (0.106 R)
• M15: 42,446,750 km (0.113 R)
• M16: 44,920,201 km (0.09 R)
• M17: 51,176,684 km (0.11 R)
• M18: 64,576,165 km (0.026 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 19,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit