🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.8

Radius: 8.3

Gravity: 14.15 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.51 AU - 0.73 AU

Year: 331 Days

Day: 7.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,513,929 km

• M1: 103,223 km (0.044 R)
• M2: 364,271 km (0.033 R)
• M3: 641,326 km (0.066 R)
• M4: 1,246,749 km (0.102 R)
• M5: 1,811,331 km (0.108 R)
• M6: 2,199,687 km (0.093 R)
• M7: 2,536,432 km (0.047 R)
• M8: 2,907,285 km (0.119 R)
• M9: 3,245,526 km (0.116 R)
• M10: 3,659,014 km (0.092 R)
• M11: 4,737,017 km (0.115 R)
• M12: 5,052,219 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25

Radius: 8.1

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.61 AU - 0.85 AU

Year: 423 Days

Day: 9.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,513,929 km

• M1: 100,679 km (0.107 R)
• M2: 370,105 km (0.113 R)
• M3: 663,467 km (0.1 R)
• M4: 989,141 km (0.114 R)
• M5: 1,339,051 km (0.089 R)
• M6: 1,669,363 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.4

Radius: 14.1

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.75 AU - 0.79 AU

Year: 458 Days

Day: 12.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,513,929 km

• M1: 175,329 km (0.107 R)
• M2: 731,085 km (0.066 R)
• M3: 1,169,855 km (0.112 R)
• M4: 1,728,454 km (0.071 R)
• M5: 2,276,580 km (0.05 R)
• M6: 2,808,999 km (0.102 R)
• M7: 3,499,393 km (0.031 R)
• M8: 4,044,827 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.3

Radius: 12.8

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.75 AU - 0.87 AU

Year: 494 Days

Day: 14.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,513,929 km

• M1: 168,447 km (0.076 R)
• M2: 571,613 km (0.097 R)
• M3: 1,339,948 km (0.119 R)
• M4: 1,793,529 km (0.089 R)
• M5: 2,230,205 km (0.097 R)
• M6: 2,834,281 km (0.072 R)
• M7: 3,583,467 km (0.09 R)
• M8: 4,172,285 km (0.119 R)
• M9: 4,701,562 km (0.107 R)
• M10: 5,127,617 km (0.107 R)
• M11: 5,859,898 km (0.116 R)
• M12: 6,487,312 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.9

Radius: 9.9

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.49 AU - 4.05 AU

Year: 4011 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,513,929 km

• M1: 142,417 km (0.099 R)
• M2: 485,295 km (0.096 R)
• M3: 832,213 km (0.114 R)
• M4: 1,259,315 km (0.106 R)
• M5: 1,673,252 km (0.113 R)
• M6: 3,733,215 km (0.078 R)
• M7: 4,532,067 km (0.092 R)
• M8: 5,769,541 km (0.062 R)
• M9: 10,014,381 km (0.072 R)
• M10: 10,625,937 km (0.099 R)
• M11: 11,020,875 km (0.084 R)
• M12: 12,787,028 km (0.062 R)
• M13: 13,507,192 km (0.102 R)
• M14: 14,111,866 km (0.093 R)
• M15: 14,880,949 km (0.082 R)
• M16: 15,325,554 km (0.119 R)
• M17: 17,193,582 km (0.043 R)
• M18: 19,208,666 km (0.092 R)
• M19: 19,914,020 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.4

Radius: 13.7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.58 AU - 5.98 AU

Year: 8229 Days

Day: 9.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,513,929 km

• M1: 171,589 km (0.066 R)
• M2: 628,311 km (0.108 R)
• M3: 1,062,444 km (0.077 R)
• M4: 1,694,495 km (0.11 R)
• M5: 2,185,026 km (0.067 R)
• M6: 3,180,900 km (0.09 R)
• M7: 4,152,687 km (0.114 R)
• M8: 6,383,491 km (0.043 R)
• M9: 7,468,524 km (0.039 R)
• M10: 8,316,295 km (0.107 R)
• M11: 9,854,610 km (0.094 R)
• M12: 10,356,212 km (0.072 R)
• M13: 11,575,135 km (0.025 R)
• M14: 13,427,606 km (0.119 R)
• M15: 16,566,019 km (0.064 R)
• M16: 18,835,419 km (0.114 R)
• M17: 19,375,318 km (0.079 R)
• M18: 23,183,930 km (0.116 R)
• M19: 25,826,427 km (0.102 R)
• M20: 35,415,650 km (0.037 R)
• M21: 36,954,713 km (0.089 R)
• M22: 38,046,179 km (0.1 R)
• M23: 46,295,604 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.3

Radius: 4.4

Gravity: 35.14 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.13 AU - 6.37 AU

Year: 9352 Days

Day: 21.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 31,513,929 km

• M1: 55,351 km (0.085 R)
• M2: 316,699 km (0.11 R)
• M3: 914,492 km (0.101 R)
• M4: 1,112,111 km (0.062 R)
• M5: 1,441,974 km (0.108 R)
• M6: 1,593,965 km (0.083 R)
• M7: 1,963,322 km (0.055 R)
• M8: 2,425,281 km (0.104 R)
• M9: 2,722,831 km (0.042 R)
• M10: 3,157,113 km (0.093 R)
• M11: 3,319,577 km (0.092 R)
• M12: 4,471,929 km (0.091 R)
• M13: 5,330,621 km (0.098 R)
• M14: 5,494,879 km (0.111 R)
• M15: 6,149,669 km (0.119 R)
• M16: 7,449,076 km (0.081 R)
• M17: 7,696,062 km (0.091 R)
• M18: 7,990,920 km (0.115 R)
• M19: 10,020,215 km (0.034 R)
• M20: 15,191,365 km (0.082 R)
• M21: 15,588,547 km (0.068 R)
• M22: 15,992,611 km (0.087 R)
• M23: 17,175,332 km (0.072 R)
• M24: 18,044,495 km (0.07 R)
• M25: 20,585,116 km (0.098 R)
• M26: 23,267,106 km (0.089 R)
• M27: 25,056,596 km (0.112 R)
• M28: 26,935,695 km (0.04 R)
• M29: 28,705,288 km (0.081 R)
• M30: 31,077,312 km (0.093 R)
• M31: 32,040,124 km (0.11 R)
• M32: 34,476,774 km (0.076 R)
• M33: 36,324,457 km (0.066 R)
• M34: 37,752,967 km (0.101 R)
• M35: 40,216,096 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.7

Radius: 5

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.01 AU - 10.35 AU

Year: 18865 Days

Day: 20.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,513,929 km

• M1: 62,233 km (0.11 R)
• M2: 406,308 km (0.072 R)
• M3: 589,864 km (0.061 R)
• M4: 760,107 km (0.082 R)
• M5: 1,927,868 km (0.094 R)
• M6: 2,562,761 km (0.096 R)
• M7: 2,815,133 km (0.053 R)
• M8: 3,739,797 km (0.111 R)
• M9: 5,042,196 km (0.062 R)
• M10: 5,266,443 km (0.105 R)
• M11: 6,358,807 km (0.08 R)
• M12: 6,653,964 km (0.056 R)
• M13: 10,942,935 km (0.029 R)
• M14: 12,499,650 km (0.039 R)
• M15: 15,925,142 km (0.032 R)
• M16: 20,347,704 km (0.107 R)
• M17: 21,422,714 km (0.08 R)
• M18: 21,642,174 km (0.084 R)
• M19: 25,360,579 km (0.078 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 148 - 13,063 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit