🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.49 AU - 0.69 AU

Year: 297 Days

Day: 36.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.9

Radius: 13.7

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.7 AU - 2.54 AU

Year: 2025 Days

Day: 10.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,872,620 km

• M1: 170,392 km (0.075 R)
• M2: 946,506 km (0.047 R)
• M3: 1,407,417 km (0.077 R)
• M4: 1,863,541 km (0.117 R)
• M5: 2,695,754 km (0.043 R)
• M6: 3,166,239 km (0.038 R)
• M7: 4,663,414 km (0.087 R)
• M8: 5,187,157 km (0.059 R)
• M9: 5,677,688 km (0.048 R)
• M10: 6,276,079 km (0.116 R)
• M11: 7,111,284 km (0.095 R)
• M12: 9,749,592 km (0.094 R)
• M13: 10,499,826 km (0.116 R)
• M14: 10,983,326 km (0.091 R)
• M15: 12,941,263 km (0.11 R)
• M16: 13,936,538 km (0.07 R)
• M17: 14,842,951 km (0.045 R)
• M18: 15,500,583 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.1

Radius: 13.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.19 AU - 3.01 AU

Year: 2750 Days

Day: 14 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,872,620 km

• M1: 167,849 km (0.11 R)
• M2: 621,878 km (0.103 R)
• M3: 1,052,870 km (0.059 R)
• M4: 1,501,963 km (0.084 R)
• M5: 2,246,810 km (0.062 R)
• M6: 2,757,238 km (0.102 R)
• M7: 3,345,308 km (0.046 R)
• M8: 4,294,656 km (0.118 R)
• M9: 4,950,044 km (0.096 R)
• M10: 5,978,978 km (0.089 R)
• M11: 6,461,730 km (0.118 R)
• M12: 8,068,860 km (0.054 R)
• M13: 9,189,199 km (0.038 R)
• M14: 10,087,534 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.7

Radius: 14.8

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.52 AU - 2.8 AU

Year: 2846 Days

Day: 11.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,872,620 km

• M1: 184,604 km (0.064 R)
• M2: 1,243,009 km (0.083 R)
• M3: 1,867,131 km (0.117 R)
• M4: 2,639,505 km (0.058 R)
• M5: 3,632,535 km (0.075 R)
• M6: 5,773,281 km (0.11 R)
• M7: 6,594,573 km (0.108 R)
• M8: 8,161,162 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.6

Radius: 11.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.81 AU - 3.37 AU

Year: 3563 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 161.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,872,620 km

• M1: 140,024 km (0.036 R)
• M2: 533,167 km (0.067 R)
• M3: 1,218,175 km (0.119 R)
• M4: 1,662,631 km (0.115 R)
• M5: 2,285,107 km (0.094 R)
• M6: 3,199,150 km (0.117 R)
• M7: 4,636,786 km (0.074 R)
• M8: 6,094,617 km (0.112 R)
• M9: 6,553,883 km (0.081 R)
• M10: 6,944,184 km (0.062 R)
• M11: 7,870,942 km (0.104 R)
• M12: 8,592,004 km (0.09 R)
• M13: 10,979,885 km (0.103 R)
• M14: 12,462,101 km (0.091 R)
• M15: 15,873,531 km (0.114 R)
• M16: 17,136,885 km (0.049 R)
• M17: 19,862,708 km (0.096 R)
• M18: 20,682,654 km (0.094 R)
• M19: 22,593,018 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.8

Radius: 11.7

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.56 AU - 5.9 AU

Year: 6748 Days

Day: 8.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,872,620 km

• M1: 145,858 km (0.054 R)
• M2: 563,236 km (0.102 R)
• M3: 974,630 km (0.085 R)
• M4: 1,505,104 km (0.116 R)
• M5: 1,912,010 km (0.043 R)
• M6: 2,445,327 km (0.09 R)
• M7: 3,014,696 km (0.074 R)
• M8: 4,084,171 km (0.111 R)
• M9: 4,555,255 km (0.107 R)
• M10: 5,829,530 km (0.107 R)
• M11: 6,532,191 km (0.104 R)
• M12: 9,737,475 km (0.094 R)
• M13: 11,525,768 km (0.045 R)
• M14: 12,416,922 km (0.087 R)
• M15: 12,851,953 km (0.033 R)
• M16: 13,466,651 km (0.114 R)
• M17: 14,754,988 km (0.06 R)
• M18: 19,619,910 km (0.108 R)
• M19: 21,896,940 km (0.072 R)
• M20: 25,547,427 km (0.066 R)
• M21: 26,252,182 km (0.087 R)
• M22: 28,163,894 km (0.076 R)
• M23: 32,672,773 km (0.078 R)
• M24: 35,206,363 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132

Radius: 13.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 5.41 AU - 6.27 AU

Year: 9258 Days

Day: 10.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,872,620 km

• M1: 170,392 km (0.114 R)
• M2: 667,655 km (0.095 R)
• M3: 1,817,614 km (0.049 R)
• M4: 2,697,100 km (0.06 R)
• M5: 4,541,343 km (0.096 R)
• M6: 5,401,530 km (0.074 R)
• M7: 6,307,645 km (0.07 R)
• M8: 7,280,031 km (0.09 R)
• M9: 8,642,568 km (0.101 R)
• M10: 10,503,117 km (0.1 R)
• M11: 11,731,166 km (0.092 R)
• M12: 13,448,400 km (0.03 R)
• M13: 18,652,760 km (0.114 R)
• M14: 19,345,697 km (0.073 R)
• M15: 22,714,641 km (0.04 R)
• M16: 23,870,435 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.1

Radius: 5.4

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.67 AU - 8.13 AU

Year: 13206 Days

Day: 21.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 123.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,872,620 km

• M1: 95,144 km (0.114 R)
• M2: 331,658 km (0.103 R)
• M3: 526,585 km (0.066 R)
• M4: 913,145 km (0.109 R)
• M5: 1,617,901 km (0.084 R)
• M6: 1,863,092 km (0.074 R)
• M7: 2,410,321 km (0.092 R)
• M8: 2,750,806 km (0.098 R)
• M9: 3,188,080 km (0.088 R)
• M10: 15,552,195 km (0.082 R)
• M11: 25,209,485 km (0.044 R)
• M12: 26,733,738 km (0.11 R)
• M13: 32,708,677 km (0.075 R)
• M14: 34,411,400 km (0.083 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 10,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit