🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.47 AU - 0.75 AU

Year: 313 Days

Day: 29 Hours

Environment

Temp: -136 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,315,500 km

• M1: 314,604 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.4

Radius: 13.5

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.77 AU - 1.25 AU

Year: 666 Days

Day: 11.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,315,500 km

• M1: 169,494 km (0.074 R)
• M2: 958,025 km (0.116 R)
• M3: 1,572,274 km (0.074 R)
• M4: 2,340,010 km (0.101 R)
• M5: 3,055,387 km (0.092 R)
• M6: 4,414,484 km (0.092 R)
• M7: 4,856,695 km (0.08 R)
• M8: 5,755,030 km (0.118 R)
• M9: 6,447,818 km (0.1 R)
• M10: 7,510,412 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 13.7

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.88 AU - 3.2 AU

Year: 3477 Days

Day: 12.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,315,500 km

• M1: 171,738 km (0.12 R)
• M2: 702,362 km (0.114 R)
• M3: 1,167,312 km (0.114 R)
• M4: 1,925,175 km (0.105 R)
• M5: 4,142,215 km (0.118 R)
• M6: 4,684,807 km (0.115 R)
• M7: 5,440,127 km (0.025 R)
• M8: 5,913,753 km (0.074 R)
• M9: 7,373,380 km (0.048 R)
• M10: 8,257,204 km (0.113 R)
• M11: 8,972,880 km (0.095 R)
• M12: 9,452,341 km (0.06 R)
• M13: 10,012,286 km (0.075 R)
• M14: 11,897,219 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198

Radius: 12.6

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.81 AU - 3.31 AU

Year: 3511 Days

Day: 12.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 86,315,500 km

• M1: 157,975 km (0.072 R)
• M2: 797,955 km (0.111 R)
• M3: 1,618,200 km (0.103 R)
• M4: 2,016,729 km (0.044 R)
• M5: 2,548,250 km (0.088 R)
• M6: 4,080,432 km (0.082 R)
• M7: 4,485,393 km (0.104 R)
• M8: 5,605,881 km (0.082 R)
• M9: 7,915,523 km (0.08 R)
• M10: 10,441,034 km (0.096 R)
• M11: 13,211,437 km (0.074 R)
• M12: 14,104,237 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370.1

Radius: 3.3

Gravity: 33.99 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.43 AU - 8.75 AU

Year: 15095 Days

Day: 24.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,315,500 km

• M1: 43,683 km (0.071 R)
• M2: 181,911 km (0.067 R)
• M3: 288,873 km (0.106 R)
• M4: 445,502 km (0.09 R)
• M5: 1,018,163 km (0.061 R)
• M6: 1,427,014 km (0.116 R)
• M7: 1,707,360 km (0.064 R)
• M8: 3,085,905 km (0.096 R)
• M9: 6,457,542 km (0.119 R)
• M10: 7,596,879 km (0.075 R)
• M11: 7,945,592 km (0.11 R)
• M12: 10,745,017 km (0.038 R)
• M13: 11,865,056 km (0.093 R)
• M14: 14,203,121 km (0.077 R)
• M15: 15,204,828 km (0.093 R)
• M16: 23,202,779 km (0.079 R)
• M17: 26,818,709 km (0.047 R)
• M18: 31,122,042 km (0.106 R)
• M19: 32,577,031 km (0.114 R)
• M20: 33,610,453 km (0.118 R)
• M21: 36,228,116 km (0.106 R)
• M22: 40,012,194 km (0.101 R)
• M23: 44,609,636 km (0.116 R)
• M24: 44,749,959 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.3

Radius: 3

Gravity: 91.81 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 9.12 AU - 11.68 AU

Year: 22002 Days

Day: 24.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 86,315,500 km

• M1: 39,195 km (0.078 R)
• M2: 143,016 km (0.087 R)
• M3: 574,755 km (0.058 R)
• M4: 1,156,990 km (0.112 R)
• M5: 3,081,866 km (0.082 R)
• M6: 3,962,848 km (0.105 R)
• M7: 4,514,714 km (0.095 R)
• M8: 5,395,098 km (0.063 R)
• M9: 6,203,973 km (0.109 R)
• M10: 7,691,575 km (0.097 R)
• M11: 9,819,455 km (0.057 R)
• M12: 10,757,433 km (0.086 R)
• M13: 10,886,985 km (0.09 R)
• M14: 11,753,606 km (0.105 R)
• M15: 11,890,936 km (0.09 R)
• M16: 12,238,901 km (0.051 R)
• M17: 12,737,212 km (0.041 R)
• M18: 13,028,179 km (0.098 R)
• M19: 14,391,914 km (0.105 R)
• M20: 17,667,060 km (0.116 R)
• M21: 19,238,137 km (0.112 R)
• M22: 23,188,867 km (0.101 R)
• M23: 24,617,078 km (0.1 R)
• M24: 25,068,115 km (0.086 R)
• M25: 25,986,646 km (0.1 R)
• M26: 26,219,720 km (0.088 R)
• M27: 26,454,139 km (0.119 R)
• M28: 32,240,436 km (0.11 R)
• M29: 38,211,186 km (0.089 R)
• M30: 41,296,492 km (0.118 R)
• M31: 45,045,265 km (0.088 R)
• M32: 46,059,090 km (0.095 R)
• M33: 48,307,845 km (0.108 R)
• M34: 49,727,529 km (0.037 R)
• M35: 55,298,853 km (0.11 R)
• M36: 56,071,676 km (0.048 R)
• M37: 59,436,880 km (0.058 R)
• M38: 61,066,000 km (0.037 R)
• M39: 74,948,384 km (0.072 R)
• M40: 79,024,926 km (0.049 R)
• M41: 80,498,165 km (0.104 R)
• M42: 84,006,834 km (0.045 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 11,174 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit