🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.67 AU - 0.99 AU

Year: 278 Days

Day: 40.6 Hours

Environment

Temp: 111 °C

Axial Tilt: 29 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,165,229 km

• M1: 33,061 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.69 AU - 2.11 AU

Year: 961 Days

Day: 42.9 Hours

Environment

Temp: -59 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.53 AU - 3.07 AU

Year: 1720 Days

Day: 28.9 Hours

Environment

Temp: -93 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 106,165,229 km

• M1: 612,304 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.64 AU - 4.84 AU

Year: 3205 Days

Day: 19.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 106,165,229 km

• M1: 161,715 km (0.091 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.59 AU - 5.03 AU

Year: 3285 Days

Day: 26.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 21 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.84 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 11.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.7

Radius: 12.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.98 AU - 12.76 AU

Year: 14074 Days

Day: 6.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 106,165,229 km

• M1: 150,495 km (0.098 R)
• M2: 539,600 km (0.114 R)
• M3: 1,084,136 km (0.08 R)
• M4: 1,521,111 km (0.093 R)
• M5: 2,169,468 km (0.096 R)
• M6: 2,590,886 km (0.113 R)
• M7: 3,067,056 km (0.066 R)
• M8: 9,001,603 km (0.079 R)
• M9: 9,462,963 km (0.106 R)
• M10: 9,940,031 km (0.068 R)
• M11: 11,349,841 km (0.114 R)
• M12: 12,133,734 km (0.062 R)
• M13: 13,542,198 km (0.093 R)
• M14: 14,914,758 km (0.03 R)
• M15: 16,758,253 km (0.102 R)
• M16: 18,666,523 km (0.113 R)
• M17: 19,418,252 km (0.113 R)
• M18: 20,627,602 km (0.114 R)
• M19: 21,340,735 km (0.114 R)
• M20: 27,758,932 km (0.05 R)
• M21: 29,070,008 km (0.11 R)
• M22: 39,562,354 km (0.075 R)
• M23: 44,974,954 km (0.089 R)
• M24: 45,571,999 km (0.025 R)
• M25: 50,379,327 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 849.5

Radius: 3.8

Gravity: 58.83 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 14.95 AU - 16.03 AU

Year: 22379 Days

Day: 18.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 106,165,229 km

• M1: 47,572 km (0.119 R)
• M2: 263,891 km (0.11 R)
• M3: 519,254 km (0.085 R)
• M4: 680,371 km (0.056 R)
• M5: 1,234,482 km (0.083 R)
• M6: 1,559,558 km (0.056 R)
• M7: 2,496,938 km (0.063 R)
• M8: 2,826,053 km (0.088 R)
• M9: 3,417,713 km (0.095 R)
• M10: 3,632,087 km (0.119 R)
• M11: 4,259,500 km (0.094 R)
• M12: 6,386,931 km (0.091 R)
• M13: 6,903,343 km (0.084 R)
• M14: 7,600,021 km (0.101 R)
• M15: 11,523,973 km (0.077 R)
• M16: 12,005,828 km (0.029 R)
• M17: 13,381,679 km (0.075 R)
• M18: 14,460,280 km (0.071 R)
• M19: 16,270,115 km (0.03 R)
• M20: 21,443,808 km (0.092 R)
• M21: 22,172,050 km (0.107 R)
• M22: 26,179,029 km (0.078 R)
• M23: 26,414,795 km (0.066 R)
• M24: 26,652,057 km (0.063 R)
• M25: 27,251,197 km (0.107 R)
• M26: 27,859,312 km (0.098 R)
• M27: 31,565,749 km (0.119 R)
• M28: 32,779,736 km (0.06 R)
• M29: 39,010,637 km (0.114 R)
• M30: 42,483,701 km (0.114 R)
• M31: 49,137,066 km (0.104 R)
• M32: 52,803,560 km (0.073 R)
• M33: 52,991,455 km (0.111 R)
• M34: 54,319,735 km (0.107 R)
• M35: 55,475,827 km (0.097 R)
• M36: 56,648,226 km (0.071 R)
• M37: 58,437,566 km (0.092 R)
• M38: 64,459,030 km (0.034 R)
• M39: 74,600,120 km (0.094 R)
• M40: 78,937,261 km (0.079 R)
• M41: 80,171,294 km (0.104 R)
• M42: 83,694,474 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.6

Radius: 3

Gravity: 25.07 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 15.17 AU - 17.21 AU

Year: 23913 Days

Day: 22.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 106,165,229 km

• M1: 38,297 km (0.105 R)
• M2: 147,354 km (0.052 R)
• M3: 865,424 km (0.093 R)
• M4: 2,403,739 km (0.093 R)
• M5: 3,309,105 km (0.05 R)
• M6: 3,546,367 km (0.076 R)
• M7: 5,536,468 km (0.11 R)
• M8: 5,985,261 km (0.052 R)
• M9: 7,299,628 km (0.113 R)
• M10: 8,212,026 km (0.054 R)
• M11: 8,403,361 km (0.103 R)
• M12: 10,594,072 km (0.119 R)
• M13: 12,943,357 km (0.113 R)
• M14: 13,932,349 km (0.063 R)
• M15: 22,861,696 km (0.066 R)
• M16: 24,596,882 km (0.069 R)
• M17: 25,194,226 km (0.072 R)
• M18: 31,943,633 km (0.036 R)
• M19: 56,228,005 km (0.078 R)
• M20: 58,839,835 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 818.1

Radius: 3.5

Gravity: 66.78 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 15.59 AU - 22.21 AU

Year: 30162 Days

Day: 17.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 106,165,229 km

• M1: 52,509 km (0.105 R)
• M2: 373,845 km (0.114 R)
• M3: 737,518 km (0.116 R)
• M4: 1,040,453 km (0.093 R)
• M5: 1,438,384 km (0.087 R)
• M6: 1,547,590 km (0.105 R)
• M7: 3,754,159 km (0.076 R)
• M8: 3,962,249 km (0.09 R)
• M9: 4,105,115 km (0.045 R)
• M10: 4,251,422 km (0.061 R)
• M11: 4,401,319 km (0.072 R)
• M12: 4,593,552 km (0.089 R)
• M13: 6,099,554 km (0.064 R)
• M14: 6,290,291 km (0.084 R)
• M15: 7,041,123 km (0.046 R)
• M16: 7,357,522 km (0.066 R)
• M17: 7,794,049 km (0.069 R)
• M18: 8,132,589 km (0.104 R)
• M19: 8,899,727 km (0.072 R)
• M20: 9,458,325 km (0.055 R)
• M21: 10,851,830 km (0.104 R)
• M22: 12,914,784 km (0.116 R)
• M23: 16,203,095 km (0.115 R)
• M24: 18,981,277 km (0.061 R)
• M25: 22,510,440 km (0.05 R)
• M26: 27,732,453 km (0.108 R)
• M27: 29,864,971 km (0.112 R)
• M28: 31,960,987 km (0.107 R)
• M29: 35,362,094 km (0.095 R)
• M30: 45,352,988 km (0.08 R)
• M31: 45,533,702 km (0.07 R)
• M32: 48,491,551 km (0.119 R)
• M33: 49,632,983 km (0.06 R)
• M34: 51,182,518 km (0.108 R)
• M35: 54,377,779 km (0.052 R)
• M36: 55,816,611 km (0.087 R)
• M37: 56,440,883 km (0.03 R)
• M38: 59,849,471 km (0.085 R)
• M39: 62,942,257 km (0.084 R)
• M40: 78,182,390 km (0.088 R)
• M41: 81,339,205 km (0.081 R)
• M42: 100,844,523 km (0.098 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 17,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit