🌌 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: 164.2

Radius: 11.5

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.56 AU - 0.8 AU

Year: 362 Days

Day: 12.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,141,696 km

• M1: 143,016 km (0.116 R)
• M2: 507,286 km (0.118 R)
• M3: 871,258 km (0.067 R)
• M4: 1,345,184 km (0.105 R)
• M5: 1,714,392 km (0.112 R)
• M6: 2,145,533 km (0.106 R)
• M7: 2,673,464 km (0.028 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 10

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.88 AU - 1.26 AU

Year: 715 Days

Day: 9.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,141,696 km

• M1: 124,465 km (0.109 R)
• M2: 436,826 km (0.033 R)
• M3: 813,513 km (0.069 R)
• M4: 1,875,209 km (0.069 R)
• M5: 2,318,318 km (0.1 R)
• M6: 2,772,946 km (0.103 R)
• M7: 3,108,644 km (0.052 R)
• M8: 3,617,725 km (0.112 R)
• M9: 4,270,271 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.2

Radius: 8.1

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.1 AU - 1.68 AU

Year: 1058 Days

Day: 9.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,141,696 km

• M1: 100,679 km (0.059 R)
• M2: 449,841 km (0.066 R)
• M3: 781,350 km (0.097 R)
• M4: 1,044,193 km (0.092 R)
• M5: 1,317,209 km (0.073 R)
• M6: 1,809,536 km (0.08 R)
• M7: 2,376,213 km (0.045 R)
• M8: 2,772,348 km (0.064 R)
• M9: 3,264,974 km (0.102 R)
• M10: 4,104,218 km (0.116 R)
• M11: 4,375,588 km (0.118 R)
• M12: 5,337,203 km (0.097 R)
• M13: 5,978,230 km (0.119 R)
• M14: 6,306,897 km (0.077 R)
• M15: 6,691,214 km (0.108 R)
• M16: 7,045,761 km (0.05 R)
• M17: 7,577,431 km (0.091 R)
• M18: 8,185,247 km (0.118 R)
• M19: 8,904,215 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 13.8

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.26 AU - 1.92 AU

Year: 1295 Days

Day: 14.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,141,696 km

• M1: 171,589 km (0.034 R)
• M2: 1,064,389 km (0.103 R)
• M3: 1,962,724 km (0.093 R)
• M4: 2,544,061 km (0.11 R)
• M5: 3,322,270 km (0.097 R)
• M6: 4,042,284 km (0.101 R)
• M7: 4,791,620 km (0.104 R)
• M8: 5,335,109 km (0.08 R)
• M9: 5,774,478 km (0.117 R)
• M10: 7,169,478 km (0.055 R)
• M11: 7,656,419 km (0.04 R)
• M12: 8,165,501 km (0.071 R)
• M13: 8,724,249 km (0.062 R)
• M14: 9,393,998 km (0.09 R)
• M15: 9,978,178 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.1

Radius: 8

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.21 AU - 3.11 AU

Year: 2801 Days

Day: 5.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,141,696 km

• M1: 99,483 km (0.081 R)
• M2: 459,116 km (0.1 R)
• M3: 766,240 km (0.04 R)
• M4: 1,136,196 km (0.118 R)
• M5: 2,073,576 km (0.04 R)
• M6: 2,461,184 km (0.059 R)
• M7: 2,710,265 km (0.078 R)
• M8: 4,099,430 km (0.118 R)
• M9: 4,624,070 km (0.099 R)
• M10: 4,914,290 km (0.098 R)
• M11: 6,145,630 km (0.08 R)
• M12: 6,861,606 km (0.062 R)
• M13: 7,239,939 km (0.055 R)
• M14: 10,440,585 km (0.094 R)
• M15: 11,059,322 km (0.092 R)
• M16: 11,579,922 km (0.1 R)
• M17: 14,336,862 km (0.083 R)
• M18: 15,741,885 km (0.049 R)
• M19: 16,094,337 km (0.107 R)
• M20: 17,236,367 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 14.6

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.18 AU - 3.6 AU

Year: 4030 Days

Day: 7.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,141,696 km

• M1: 187,596 km (0.098 R)
• M2: 827,127 km (0.072 R)
• M3: 1,605,185 km (0.072 R)
• M4: 2,106,637 km (0.097 R)
• M5: 2,620,057 km (0.096 R)
• M6: 4,113,493 km (0.104 R)
• M7: 5,022,898 km (0.08 R)
• M8: 7,952,473 km (0.03 R)
• M9: 8,996,666 km (0.058 R)
• M10: 10,731,852 km (0.075 R)
• M11: 11,744,031 km (0.117 R)
• M12: 16,167,790 km (0.1 R)
• M13: 19,080,012 km (0.025 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.8

Radius: 12

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.55 AU - 4.97 AU

Year: 6705 Days

Day: 11.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 177.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,141,696 km

• M1: 150,495 km (0.11 R)
• M2: 730,187 km (0.069 R)
• M3: 1,207,554 km (0.097 R)
• M4: 1,652,757 km (0.049 R)
• M5: 2,521,622 km (0.068 R)
• M6: 2,946,031 km (0.111 R)
• M7: 4,796,856 km (0.116 R)
• M8: 7,400,756 km (0.108 R)
• M9: 9,226,748 km (0.049 R)
• M10: 9,773,079 km (0.104 R)
• M11: 10,830,886 km (0.106 R)
• M12: 11,751,810 km (0.079 R)
• M13: 12,613,494 km (0.056 R)
• M14: 13,925,467 km (0.056 R)
• M15: 18,478,329 km (0.078 R)
• M16: 18,982,175 km (0.057 R)
• M17: 21,324,279 km (0.093 R)
• M18: 23,182,135 km (0.073 R)
• M19: 23,937,754 km (0.087 R)
• M20: 34,329,570 km (0.105 R)
• M21: 39,663,631 km (0.105 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: 509 - 20,285 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit