🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.6

Radius: 8.4

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.55 AU - 0.71 AU

Year: 333 Days

Day: 12.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,536,236 km

• M1: 104,419 km (0.105 R)
• M2: 378,931 km (0.12 R)
• M3: 746,793 km (0.085 R)
• M4: 1,097,450 km (0.095 R)
• M5: 1,435,541 km (0.117 R)
• M6: 1,705,565 km (0.094 R)
• M7: 2,055,176 km (0.094 R)
• M8: 2,342,254 km (0.117 R)
• M9: 2,785,662 km (0.062 R)
• M10: 3,610,844 km (0.111 R)
• M11: 4,117,233 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 13.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.67 AU - 0.69 AU

Year: 374 Days

Day: 8.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 86,536,236 km

• M1: 169,195 km (0.096 R)
• M2: 690,843 km (0.027 R)
• M3: 1,355,506 km (0.105 R)
• M4: 1,878,800 km (0.084 R)
• M5: 2,331,034 km (0.097 R)
• M6: 2,969,518 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.4

Radius: 11.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.87 AU - 0.89 AU

Year: 550 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,536,236 km

• M1: 141,968 km (0.109 R)
• M2: 532,568 km (0.108 R)
• M3: 1,005,746 km (0.109 R)
• M4: 1,358,049 km (0.114 R)
• M5: 2,453,106 km (0.04 R)
• M6: 3,187,183 km (0.116 R)
• M7: 4,168,844 km (0.077 R)
• M8: 5,199,274 km (0.047 R)
• M9: 5,567,434 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.8

Radius: 8.4

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 3.52 AU - 3.62 AU

Year: 4498 Days

Day: 8.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,536,236 km

• M1: 104,419 km (0.076 R)
• M2: 455,974 km (0.104 R)
• M3: 1,439,730 km (0.065 R)
• M4: 1,732,044 km (0.057 R)
• M5: 2,886,940 km (0.076 R)
• M6: 3,524,376 km (0.109 R)
• M7: 4,469,236 km (0.066 R)
• M8: 5,165,016 km (0.049 R)
• M9: 5,550,679 km (0.092 R)
• M10: 6,152,661 km (0.097 R)
• M11: 7,514,899 km (0.11 R)
• M12: 8,653,040 km (0.102 R)
• M13: 9,100,038 km (0.116 R)
• M14: 14,278,967 km (0.053 R)
• M15: 14,948,866 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.6

Radius: 10.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.4 AU - 5.6 AU

Year: 7456 Days

Day: 12.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,536,236 km

• M1: 136,732 km (0.095 R)
• M2: 514,617 km (0.077 R)
• M3: 872,006 km (0.095 R)
• M4: 1,646,025 km (0.114 R)
• M5: 2,042,909 km (0.101 R)
• M6: 2,638,158 km (0.068 R)
• M7: 3,406,792 km (0.081 R)
• M8: 3,877,577 km (0.09 R)
• M9: 4,318,741 km (0.106 R)
• M10: 5,083,784 km (0.081 R)
• M11: 5,758,920 km (0.09 R)
• M12: 6,882,699 km (0.101 R)
• M13: 7,426,637 km (0.12 R)
• M14: 8,447,792 km (0.116 R)
• M15: 9,768,442 km (0.112 R)
• M16: 10,194,646 km (0.105 R)
• M17: 11,084,305 km (0.08 R)
• M18: 12,764,738 km (0.103 R)
• M19: 17,356,345 km (0.083 R)
• M20: 18,494,186 km (0.095 R)
• M21: 19,081,358 km (0.102 R)
• M22: 19,479,737 km (0.068 R)
• M23: 21,987,895 km (0.117 R)
• M24: 23,622,401 km (0.119 R)
• M25: 25,496,414 km (0.084 R)
• M26: 26,142,527 km (0.106 R)
• M27: 26,882,438 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.6

Radius: 10.4

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.01 AU - 6.09 AU

Year: 7568 Days

Day: 12.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 86,536,236 km

• M1: 129,402 km (0.076 R)
• M2: 473,776 km (0.119 R)
• M3: 1,393,504 km (0.1 R)
• M4: 2,153,312 km (0.092 R)
• M5: 2,870,185 km (0.103 R)
• M6: 5,219,769 km (0.119 R)
• M7: 6,377,208 km (0.028 R)
• M8: 6,863,102 km (0.074 R)
• M9: 7,229,317 km (0.096 R)
• M10: 10,206,764 km (0.065 R)
• M11: 12,332,100 km (0.094 R)
• M12: 13,873,557 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.8

Radius: 4.6

Gravity: 36.33 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.36 AU - 11.38 AU

Year: 20678 Days

Day: 16.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 86,536,236 km

• M1: 57,446 km (0.094 R)
• M2: 218,862 km (0.055 R)
• M3: 585,526 km (0.082 R)
• M4: 941,120 km (0.085 R)
• M5: 1,304,493 km (0.074 R)
• M6: 1,560,755 km (0.072 R)
• M7: 2,679,896 km (0.117 R)
• M8: 3,432,822 km (0.1 R)
• M9: 3,702,398 km (0.063 R)
• M10: 6,000,371 km (0.029 R)
• M11: 7,081,215 km (0.047 R)
• M12: 8,128,101 km (0.089 R)
• M13: 9,388,762 km (0.086 R)
• M14: 10,586,443 km (0.061 R)
• M15: 11,882,260 km (0.117 R)
• M16: 13,352,956 km (0.025 R)
• M17: 14,094,214 km (0.115 R)
• M18: 15,902,403 km (0.043 R)
• M19: 16,904,709 km (0.083 R)
• M20: 17,247,887 km (0.073 R)
• M21: 18,850,229 km (0.076 R)
• M22: 19,405,686 km (0.112 R)
• M23: 21,236,465 km (0.056 R)
• M24: 22,864,987 km (0.105 R)
• M25: 23,709,617 km (0.113 R)
• M26: 26,483,012 km (0.078 R)
• M27: 32,796,192 km (0.091 R)
• M28: 33,599,083 km (0.064 R)
• M29: 36,654,919 km (0.067 R)
• M30: 36,798,084 km (0.074 R)
• M31: 37,956,720 km (0.084 R)
• M32: 42,834,807 km (0.096 R)
• M33: 45,258,592 km (0.119 R)
• M34: 46,588,068 km (0.12 R)
• M35: 50,554,656 km (0.088 R)
• M36: 63,793,469 km (0.066 R)
• M37: 65,043,209 km (0.084 R)
• M38: 68,022,451 km (0.09 R)
• M39: 79,404,007 km (0.192 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.7

Radius: 3.7

Gravity: 68.86 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 9.33 AU - 10.41 AU

Year: 20678 Days

Day: 23.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 86,536,236 km

• M1: 46,226 km (0.112 R)
• M2: 170,841 km (0.082 R)
• M3: 486,043 km (0.032 R)
• M4: 727,644 km (0.116 R)
• M5: 1,182,870 km (0.088 R)
• M6: 1,381,237 km (0.06 R)
• M7: 1,548,637 km (0.082 R)
• M8: 2,311,885 km (0.076 R)
• M9: 2,906,836 km (0.114 R)
• M10: 3,505,826 km (0.07 R)
• M11: 3,628,646 km (0.101 R)
• M12: 5,176,535 km (0.103 R)
• M13: 5,664,823 km (0.04 R)
• M14: 5,834,167 km (0.117 R)
• M15: 6,050,785 km (0.061 R)
• M16: 6,638,705 km (0.118 R)
• M17: 7,616,327 km (0.117 R)
• M18: 7,874,982 km (0.092 R)
• M19: 9,432,894 km (0.089 R)
• M20: 9,913,103 km (0.105 R)
• M21: 12,922,414 km (0.12 R)
• M22: 13,514,372 km (0.076 R)
• M23: 14,357,506 km (0.109 R)
• M24: 17,719,120 km (0.093 R)
• M25: 27,121,496 km (0.084 R)
• M26: 30,871,166 km (0.06 R)
• M27: 34,108,763 km (0.042 R)
• M28: 35,521,865 km (0.088 R)
• M29: 37,268,719 km (0.09 R)
• M30: 41,248,172 km (0.117 R)
• M31: 41,565,469 km (0.108 R)
• M32: 53,161,847 km (0.047 R)
• M33: 54,104,613 km (0.088 R)
• M34: 57,196,651 km (0.093 R)
• M35: 64,366,877 km (0.038 R)
• M36: 68,721,223 km (0.06 R)
• M37: 72,112,906 km (0.055 R)
• M38: 80,457,176 km (0.078 R)
• M39: 82,702,191 km (0.208 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 20,140 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit