🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.4

Radius: 12.1

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.63 AU - 0.73 AU

Year: 368 Days

Day: 8.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 137.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,991,908 km

• M1: 150,495 km (0.108 R)
• M2: 702,063 km (0.046 R)
• M3: 1,100,741 km (0.094 R)
• M4: 1,726,808 km (0.068 R)
• M5: 2,195,498 km (0.105 R)
• M6: 2,659,551 km (0.105 R)
• M7: 4,066,818 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.2

Radius: 11.7

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.67 AU - 0.85 AU

Year: 435 Days

Day: 6.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,991,908 km

• M1: 145,559 km (0.053 R)
• M2: 1,439,730 km (0.111 R)
• M3: 1,870,871 km (0.105 R)
• M4: 2,438,595 km (0.059 R)
• M5: 3,108,793 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158

Radius: 15

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.88 AU - 0.9 AU

Year: 551 Days

Day: 13.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,991,908 km

• M1: 186,549 km (0.102 R)
• M2: 732,730 km (0.081 R)
• M3: 1,415,794 km (0.066 R)
• M4: 2,065,947 km (0.116 R)
• M5: 3,232,660 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.7

Radius: 11.4

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1 AU - 1.6 AU

Year: 972 Days

Day: 8.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,991,908 km

• M1: 144,362 km (0.055 R)
• M2: 500,255 km (0.105 R)
• M3: 1,021,903 km (0.075 R)
• M4: 1,605,634 km (0.074 R)
• M5: 2,047,247 km (0.091 R)
• M6: 2,475,097 km (0.08 R)
• M7: 3,421,453 km (0.109 R)
• M8: 3,856,334 km (0.081 R)
• M9: 4,674,634 km (0.09 R)
• M10: 5,229,493 km (0.083 R)
• M11: 5,697,136 km (0.083 R)
• M12: 6,390,821 km (0.075 R)
• M13: 7,118,465 km (0.032 R)
• M14: 7,513,703 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116

Radius: 9.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.16 AU - 1.66 AU

Year: 1098 Days

Day: 14.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,991,908 km

• M1: 116,836 km (0.105 R)
• M2: 552,615 km (0.117 R)
• M3: 1,077,254 km (0.055 R)
• M4: 1,450,950 km (0.105 R)
• M5: 1,959,583 km (0.111 R)
• M6: 2,418,399 km (0.106 R)
• M7: 2,776,985 km (0.094 R)
• M8: 3,080,370 km (0.08 R)
• M9: 3,454,215 km (0.116 R)
• M10: 3,858,428 km (0.117 R)
• M11: 4,538,351 km (0.087 R)
• M12: 4,946,005 km (0.086 R)
• M13: 5,263,601 km (0.119 R)
• M14: 5,957,586 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.5

Radius: 10.2

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.8 AU - 4.12 AU

Year: 4222 Days

Day: 8.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,991,908 km

• M1: 131,197 km (0.025 R)
• M2: 531,820 km (0.075 R)
• M3: 1,079,349 km (0.11 R)
• M4: 1,844,093 km (0.117 R)
• M5: 2,518,630 km (0.112 R)
• M6: 2,936,457 km (0.09 R)
• M7: 3,553,847 km (0.088 R)
• M8: 5,386,122 km (0.104 R)
• M9: 8,636,285 km (0.094 R)
• M10: 10,291,137 km (0.075 R)
• M11: 13,218,468 km (0.066 R)
• M12: 13,996,078 km (0.111 R)
• M13: 15,500,284 km (0.04 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.4

Radius: 12.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.18 AU - 5.16 AU

Year: 6620 Days

Day: 14.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,991,908 km

• M1: 160,519 km (0.053 R)
• M2: 970,741 km (0.109 R)
• M3: 3,350,992 km (0.111 R)
• M4: 4,976,523 km (0.06 R)
• M5: 6,132,615 km (0.119 R)
• M6: 7,009,259 km (0.104 R)
• M7: 7,820,528 km (0.075 R)
• M8: 8,971,534 km (0.103 R)
• M9: 13,260,505 km (0.065 R)
• M10: 16,780,094 km (0.102 R)
• M11: 18,622,841 km (0.078 R)
• M12: 20,667,395 km (0.086 R)
• M13: 24,480,046 km (0.072 R)
• M14: 27,013,636 km (0.102 R)
• M15: 28,039,877 km (0.055 R)
• M16: 29,717,467 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.1

Radius: 3.1

Gravity: 17.6 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.96 AU - 7.94 AU

Year: 12020 Days

Day: 17.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 33,991,908 km

• M1: 39,045 km (0.095 R)
• M2: 146,456 km (0.09 R)
• M3: 253,568 km (0.044 R)
• M4: 569,070 km (0.099 R)
• M5: 768,035 km (0.105 R)
• M6: 955,332 km (0.062 R)
• M7: 1,349,672 km (0.096 R)
• M8: 1,457,233 km (0.092 R)
• M9: 1,814,772 km (0.093 R)
• M10: 2,430,367 km (0.055 R)
• M11: 3,091,440 km (0.08 R)
• M12: 4,156,726 km (0.071 R)
• M13: 4,463,552 km (0.106 R)
• M14: 5,122,081 km (0.112 R)
• M15: 5,296,363 km (0.051 R)
• M16: 6,001,268 km (0.05 R)
• M17: 7,226,774 km (0.114 R)
• M18: 7,409,134 km (0.078 R)
• M19: 7,745,280 km (0.025 R)
• M20: 9,065,033 km (0.103 R)
• M21: 9,623,631 km (0.09 R)
• M22: 11,387,689 km (0.062 R)
• M23: 15,179,846 km (0.095 R)
• M24: 23,255,737 km (0.118 R)
• M25: 23,493,747 km (0.105 R)
• M26: 25,372,547 km (0.04 R)
• M27: 29,425,901 km (0.049 R)
• M28: 30,360,738 km (0.043 R)
• M29: 31,315,322 km (0.071 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 11,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit