🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.6

Radius: 8.4

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.79 AU - 1.21 AU

Year: 667 Days

Day: 10.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,254,540 km

• M1: 104,569 km (0.087 R)
• M2: 503,247 km (0.114 R)
• M3: 905,217 km (0.078 R)
• M4: 1,701,526 km (0.111 R)
• M5: 2,994,501 km (0.055 R)
• M6: 3,282,177 km (0.083 R)
• M7: 3,844,067 km (0.098 R)
• M8: 4,287,774 km (0.118 R)
• M9: 5,008,836 km (0.104 R)
• M10: 6,086,689 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.2

Radius: 10.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.98 AU - 1.14 AU

Year: 728 Days

Day: 13.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,254,540 km

• M1: 129,701 km (0.095 R)
• M2: 502,200 km (0.114 R)
• M3: 1,082,041 km (0.056 R)
• M4: 1,410,259 km (0.086 R)
• M5: 1,783,356 km (0.116 R)
• M6: 2,387,732 km (0.047 R)
• M7: 3,356,827 km (0.104 R)
• M8: 3,702,846 km (0.08 R)
• M9: 4,141,318 km (0.104 R)
• M10: 4,510,974 km (0.031 R)
• M11: 5,634,604 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.3

Radius: 8.3

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.34 AU - 1.48 AU

Year: 1116 Days

Day: 6.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 24,254,540 km

• M1: 103,223 km (0.098 R)
• M2: 474,375 km (0.08 R)
• M3: 1,144,424 km (0.117 R)
• M4: 1,881,941 km (0.077 R)
• M5: 2,366,638 km (0.069 R)
• M6: 3,322,270 km (0.092 R)
• M7: 3,585,263 km (0.067 R)
• M8: 4,385,910 km (0.07 R)
• M9: 4,703,207 km (0.099 R)
• M10: 5,218,423 km (0.095 R)
• M11: 6,038,219 km (0.066 R)
• M12: 7,041,422 km (0.096 R)
• M13: 8,489,230 km (0.047 R)
• M14: 8,983,651 km (0.03 R)
• M15: 9,283,296 km (0.072 R)
• M16: 11,018,332 km (0.054 R)
• M17: 11,361,958 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.7

Radius: 12.5

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.78 AU - 2.82 AU

Year: 2326 Days

Day: 9.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,254,540 km

• M1: 160,219 km (0.083 R)
• M2: 570,865 km (0.117 R)
• M3: 1,002,605 km (0.086 R)
• M4: 1,507,199 km (0.113 R)
• M5: 2,028,846 km (0.092 R)
• M6: 2,508,457 km (0.11 R)
• M7: 3,460,498 km (0.116 R)
• M8: 3,911,536 km (0.086 R)
• M9: 4,639,928 km (0.104 R)
• M10: 5,334,660 km (0.113 R)
• M11: 6,533,687 km (0.063 R)
• M12: 6,961,238 km (0.099 R)
• M13: 7,560,527 km (0.057 R)
• M14: 8,457,216 km (0.061 R)
• M15: 8,931,591 km (0.101 R)
• M16: 9,676,289 km (0.03 R)
• M17: 13,850,369 km (0.105 R)
• M18: 18,467,708 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 9.1

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.23 AU - 3.41 AU

Year: 3158 Days

Day: 5.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,254,540 km

• M1: 114,891 km (0.075 R)
• M2: 523,742 km (0.095 R)
• M3: 871,258 km (0.096 R)
• M4: 2,429,021 km (0.104 R)
• M5: 2,751,404 km (0.077 R)
• M6: 3,414,721 km (0.072 R)
• M7: 3,969,879 km (0.093 R)
• M8: 7,456,107 km (0.115 R)
• M9: 8,421,762 km (0.086 R)
• M10: 10,201,528 km (0.083 R)
• M11: 11,275,042 km (0.095 R)
• M12: 12,462,849 km (0.06 R)
• M13: 14,218,530 km (0.074 R)
• M14: 15,178,948 km (0.101 R)
• M15: 15,939,204 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.4

Radius: 15

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.78 AU - 4.34 AU

Year: 4479 Days

Day: 5.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,254,540 km

• M1: 190,887 km (0.074 R)
• M2: 1,151,006 km (0.1 R)
• M3: 1,868,328 km (0.117 R)
• M4: 2,563,060 km (0.103 R)
• M5: 3,968,682 km (0.066 R)
• M6: 6,665,932 km (0.117 R)
• M7: 7,491,113 km (0.116 R)
• M8: 8,274,857 km (0.097 R)
• M9: 9,404,620 km (0.109 R)
• M10: 9,884,380 km (0.089 R)
• M11: 10,412,161 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.6

Radius: 11.1

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.43 AU - 4.15 AU

Year: 4920 Days

Day: 12.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,254,540 km

• M1: 138,079 km (0.057 R)
• M2: 623,374 km (0.106 R)
• M3: 1,461,422 km (0.109 R)
• M4: 2,547,203 km (0.057 R)
• M5: 3,188,978 km (0.12 R)
• M6: 4,350,605 km (0.066 R)
• M7: 12,209,879 km (0.055 R)
• M8: 12,718,661 km (0.094 R)
• M9: 13,679,828 km (0.113 R)
• M10: 14,483,168 km (0.112 R)
• M11: 16,685,099 km (0.08 R)
• M12: 17,660,477 km (0.12 R)
• M13: 20,554,897 km (0.107 R)
• M14: 24,182,197 km (0.119 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: 531 - 12,461 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit