🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.61 AU - 0.69 AU

Year: 191 Days

Day: 30.8 Hours

Environment

Temp: 181 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.25 AU - 1.63 AU

Year: 631 Days

Day: 42.8 Hours

Environment

Temp: -28 °C

Axial Tilt: 3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.32 AU - 2.18 AU

Year: 846 Days

Day: 13.9 Hours

Environment

Temp: -43 °C

Axial Tilt: 152.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 112,946,781 km

• M1: 30,668 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.98 AU - 2.96 AU

Year: 1418 Days

Day: 47.5 Hours

Environment

Temp: -95 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.27 AU - 3.09 AU

Year: 1602 Days

Day: 31.8 Hours

Environment

Temp: -95 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 112,946,781 km

• M1: 94,695 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.7

Radius: 9.7

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 6.85 AU - 7.33 AU

Year: 6895 Days

Day: 11.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 84.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 112,946,781 km

• M1: 121,025 km (0.089 R)
• M2: 690,095 km (0.101 R)
• M3: 1,550,582 km (0.069 R)
• M4: 2,050,388 km (0.104 R)
• M5: 3,914,378 km (0.066 R)
• M6: 4,510,974 km (0.053 R)
• M7: 5,078,100 km (0.078 R)
• M8: 5,853,017 km (0.082 R)
• M9: 7,793,750 km (0.059 R)
• M10: 8,996,666 km (0.084 R)
• M11: 9,349,418 km (0.064 R)
• M12: 10,129,571 km (0.11 R)
• M13: 10,804,108 km (0.067 R)
• M14: 11,152,372 km (0.075 R)
• M15: 14,877,059 km (0.074 R)
• M16: 15,433,414 km (0.088 R)
• M17: 16,785,779 km (0.116 R)
• M18: 20,320,776 km (0.118 R)
• M19: 20,623,413 km (0.04 R)
• M20: 21,471,184 km (0.049 R)
• M21: 31,570,087 km (0.105 R)
• M22: 33,636,184 km (0.085 R)
• M23: 35,571,382 km (0.081 R)
• M24: 36,566,208 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.6

Radius: 7.5

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 11.62 AU - 13.42 AU

Year: 16181 Days

Day: 15.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 112,946,781 km

• M1: 93,349 km (0.06 R)
• M2: 538,253 km (0.114 R)
• M3: 814,411 km (0.096 R)
• M4: 3,017,389 km (0.073 R)
• M5: 3,425,193 km (0.102 R)
• M6: 7,013,447 km (0.038 R)
• M7: 12,204,045 km (0.096 R)
• M8: 13,647,963 km (0.039 R)
• M9: 14,012,833 km (0.092 R)
• M10: 15,257,786 km (0.115 R)
• M11: 16,282,382 km (0.053 R)
• M12: 18,090,721 km (0.032 R)
• M13: 21,395,637 km (0.084 R)
• M14: 22,316,562 km (0.118 R)
• M15: 23,634,968 km (0.114 R)
• M16: 23,934,762 km (0.075 R)
• M17: 26,265,497 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.9

Radius: 7.7

Gravity: 16.73 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 15.42 AU - 22.42 AU

Year: 30059 Days

Day: 22.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 112,946,781 km

• M1: 95,743 km (0.101 R)
• M2: 392,395 km (0.08 R)
• M3: 721,511 km (0.119 R)
• M4: 985,102 km (0.058 R)
• M5: 1,486,853 km (0.099 R)
• M6: 2,195,947 km (0.076 R)
• M7: 4,414,932 km (0.07 R)
• M8: 4,892,898 km (0.113 R)
• M9: 5,449,252 km (0.025 R)
• M10: 6,738,636 km (0.114 R)
• M11: 7,050,697 km (0.094 R)
• M12: 8,516,457 km (0.094 R)
• M13: 9,257,266 km (0.092 R)
• M14: 12,576,244 km (0.111 R)
• M15: 13,210,689 km (0.075 R)
• M16: 13,866,227 km (0.075 R)
• M17: 16,801,786 km (0.113 R)
• M18: 17,376,690 km (0.091 R)
• M19: 20,775,703 km (0.109 R)
• M20: 26,861,345 km (0.049 R)
• M21: 37,980,057 km (0.11 R)
• M22: 40,828,700 km (0.116 R)
• M23: 42,392,895 km (0.102 R)
• M24: 45,088,200 km (0.112 R)
• M25: 47,514,528 km (0.109 R)
• M26: 49,439,404 km (0.097 R)
• M27: 54,685,950 km (0.107 R)
• M28: 55,104,226 km (0.091 R)
• M29: 55,947,210 km (0.112 R)
• M30: 64,389,616 km (0.102 R)
• M31: 68,426,515 km (0.113 R)
• M32: 73,897,159 km (0.119 R)
• M33: 77,526,105 km (0.106 R)
• M34: 107,616,071 km (0.108 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: 285 - 11,274 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit