🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.95 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.83 AU - 1.97 AU

Year: 992 Days

Day: 30.6 Hours

Environment

Temp: -80 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.03 AU - 3.35 AU

Year: 2158 Days

Day: 15 Hours

Environment

Temp: -120 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,122,284 km

• M1: 44,131 km (0.057 R)
• M2: 792,420 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.44 AU - 4.44 AU

Year: 2962 Days

Day: 25.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.26 AU - 4.7 AU

Year: 3007 Days

Day: 45.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,122,284 km

• M1: 2,682,739 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.3

Radius: 12.3

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.36 AU - 7.16 AU

Year: 5236 Days

Day: 11.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,122,284 km

• M1: 153,039 km (0.098 R)
• M2: 618,737 km (0.075 R)
• M3: 1,028,485 km (0.107 R)
• M4: 1,510,938 km (0.096 R)
• M5: 2,015,682 km (0.11 R)
• M6: 2,515,787 km (0.11 R)
• M7: 2,912,671 km (0.098 R)
• M8: 3,432,523 km (0.08 R)
• M9: 4,269,074 km (0.058 R)
• M10: 5,802,453 km (0.106 R)
• M11: 7,327,154 km (0.098 R)
• M12: 8,520,646 km (0.051 R)
• M13: 9,304,688 km (0.075 R)
• M14: 11,016,537 km (0.059 R)
• M15: 11,662,650 km (0.068 R)
• M16: 13,648,711 km (0.118 R)
• M17: 14,832,479 km (0.11 R)
• M18: 15,506,567 km (0.101 R)
• M19: 16,496,157 km (0.101 R)
• M20: 17,097,690 km (0.105 R)
• M21: 17,901,480 km (0.095 R)
• M22: 18,665,626 km (0.092 R)
• M23: 22,816,966 km (0.097 R)
• M24: 24,715,363 km (0.108 R)
• M25: 25,503,295 km (0.032 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.3

Radius: 8.8

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.72 AU - 8.36 AU

Year: 7075 Days

Day: 14.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,122,284 km

• M1: 115,639 km (0.097 R)
• M2: 519,853 km (0.114 R)
• M3: 1,472,193 km (0.114 R)
• M4: 2,209,411 km (0.094 R)
• M5: 2,708,918 km (0.062 R)
• M6: 3,235,204 km (0.06 R)
• M7: 4,023,136 km (0.078 R)
• M8: 4,299,892 km (0.068 R)
• M9: 5,294,568 km (0.116 R)
• M10: 5,605,133 km (0.081 R)
• M11: 5,927,816 km (0.082 R)
• M12: 10,177,293 km (0.046 R)
• M13: 10,519,573 km (0.054 R)
• M14: 14,209,853 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.5

Radius: 3.2

Gravity: 56.2 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 10.27 AU - 15.93 AU

Year: 17958 Days

Day: 22.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,122,284 km

• M1: 39,793 km (0.027 R)
• M2: 144,063 km (0.092 R)
• M3: 385,514 km (0.107 R)
• M4: 852,409 km (0.062 R)
• M5: 1,108,520 km (0.068 R)
• M6: 1,585,737 km (0.115 R)
• M7: 1,685,519 km (0.061 R)
• M8: 2,029,295 km (0.104 R)
• M9: 2,505,764 km (0.098 R)
• M10: 2,758,286 km (0.101 R)
• M11: 4,345,968 km (0.057 R)
• M12: 4,476,118 km (0.107 R)
• M13: 5,806,492 km (0.116 R)
• M14: 6,371,972 km (0.072 R)
• M15: 6,841,410 km (0.087 R)
• M16: 7,062,216 km (0.107 R)
• M17: 7,800,931 km (0.114 R)
• M18: 9,108,715 km (0.082 R)
• M19: 10,381,344 km (0.115 R)
• M20: 10,969,862 km (0.099 R)
• M21: 11,642,753 km (0.082 R)
• M22: 12,538,097 km (0.059 R)
• M23: 12,868,708 km (0.102 R)
• M24: 18,635,108 km (0.103 R)
• M25: 19,502,476 km (0.05 R)
• M26: 20,305,966 km (0.084 R)
• M27: 23,241,974 km (0.111 R)
• M28: 26,126,221 km (0.111 R)
• M29: 26,992,093 km (0.097 R)
• M30: 27,988,864 km (0.058 R)
• M31: 29,010,019 km (0.026 R)
• M32: 29,355,740 km (0.114 R)
• M33: 39,340,051 km (0.112 R)
• M34: 41,927,346 km (0.061 R)
• M35: 50,034,205 km (0.085 R)
• M36: 50,697,821 km (0.09 R)
• M37: 57,297,480 km (0.115 R)
• M38: 62,510,966 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 902.2

Radius: 3.3

Gravity: 82.85 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 11.81 AU - 15.57 AU

Year: 19185 Days

Day: 18.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,122,284 km

• M1: 40,990 km (0.104 R)
• M2: 236,065 km (0.057 R)
• M3: 483,052 km (0.096 R)
• M4: 1,002,007 km (0.103 R)
• M5: 1,401,283 km (0.052 R)
• M6: 2,101,551 km (0.1 R)
• M7: 2,954,857 km (0.116 R)
• M8: 4,385,611 km (0.063 R)
• M9: 5,230,241 km (0.079 R)
• M10: 6,048,242 km (0.096 R)
• M11: 6,398,002 km (0.108 R)
• M12: 8,405,456 km (0.09 R)
• M13: 11,180,646 km (0.101 R)
• M14: 12,808,420 km (0.08 R)
• M15: 13,902,130 km (0.088 R)
• M16: 17,034,410 km (0.063 R)
• M17: 18,354,612 km (0.079 R)
• M18: 21,395,787 km (0.082 R)
• M19: 22,308,034 km (0.069 R)
• M20: 22,825,793 km (0.106 R)
• M21: 24,318,181 km (0.087 R)
• M22: 32,235,648 km (0.12 R)
• M23: 32,631,484 km (0.103 R)
• M24: 33,702,755 km (0.104 R)
• M25: 40,321,712 km (0.104 R)
• M26: 50,364,218 km (0.12 R)
• M27: 52,336,217 km (0.093 R)
• M28: 55,295,711 km (0.064 R)
• M29: 55,484,205 km (0.079 R)
• M30: 58,952,482 km (0.075 R)
• M31: 61,950,722 km (0.106 R)
• M32: 63,178,023 km (0.068 R)
• M33: 67,601,034 km (0.097 R)
• M34: 70,661,507 km (0.103 R)
• M35: 75,423,357 km (0.114 R)
• M36: 76,822,247 km (0.027 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 18,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit