🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.67 AU - 0.89 AU

Year: 244 Days

Day: 47.6 Hours

Environment

Temp: 194 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.78 AU - 2.2 AU

Year: 996 Days

Day: 47.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 170.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.85 AU - 3.83 AU

Year: 2165 Days

Day: 43.2 Hours

Environment

Temp: -99 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 96,191,144 km

• M1: 42,635 km (0.086 R)
• M2: 494,122 km (0.073 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.13 AU - 4.87 AU

Year: 2838 Days

Day: 13.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.2

Radius: 13.6

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.99 AU - 9.33 AU

Year: 8269 Days

Day: 9.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 96,191,144 km

• M1: 169,195 km (0.066 R)
• M2: 692,189 km (0.099 R)
• M3: 1,626,727 km (0.081 R)
• M4: 2,250,550 km (0.038 R)
• M5: 3,231,763 km (0.117 R)
• M6: 3,914,228 km (0.113 R)
• M7: 5,216,627 km (0.049 R)
• M8: 6,158,944 km (0.095 R)
• M9: 7,538,835 km (0.112 R)
• M10: 9,982,816 km (0.12 R)
• M11: 11,630,935 km (0.082 R)
• M12: 12,546,025 km (0.072 R)
• M13: 14,008,195 km (0.082 R)
• M14: 14,577,714 km (0.111 R)
• M15: 23,298,971 km (0.097 R)
• M16: 26,265,796 km (0.104 R)
• M17: 31,368,430 km (0.078 R)
• M18: 33,744,492 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.4

Radius: 13

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.95 AU - 9.51 AU

Year: 9948 Days

Day: 8.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 96,191,144 km

• M1: 161,715 km (0.078 R)
• M2: 1,088,025 km (0.05 R)
• M3: 1,568,534 km (0.066 R)
• M4: 2,068,490 km (0.112 R)
• M5: 4,161,514 km (0.118 R)
• M6: 6,481,328 km (0.103 R)
• M7: 8,185,397 km (0.084 R)
• M8: 10,972,106 km (0.096 R)
• M9: 12,105,310 km (0.108 R)
• M10: 12,519,696 km (0.041 R)
• M11: 13,005,141 km (0.117 R)
• M12: 14,078,356 km (0.106 R)
• M13: 17,130,303 km (0.066 R)
• M14: 20,431,479 km (0.111 R)
• M15: 24,228,422 km (0.106 R)
• M16: 24,698,459 km (0.038 R)
• M17: 26,243,655 km (0.118 R)
• M18: 28,368,394 km (0.113 R)
• M19: 31,599,259 km (0.059 R)
• M20: 32,160,700 km (0.078 R)
• M21: 33,303,328 km (0.09 R)
• M22: 35,669,817 km (0.114 R)
• M23: 40,208,317 km (0.109 R)
• M24: 40,867,745 km (0.051 R)
• M25: 44,413,364 km (0.088 R)
• M26: 45,830,056 km (0.106 R)
• M27: 47,276,667 km (0.112 R)
• M28: 49,352,786 km (0.11 R)
• M29: 50,260,845 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 14.9

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 8.1 AU - 11.2 AU

Year: 10635 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 96,191,144 km

• M1: 186,249 km (0.048 R)
• M2: 732,581 km (0.069 R)
• M3: 1,431,203 km (0.057 R)
• M4: 2,210,009 km (0.066 R)
• M5: 2,739,137 km (0.118 R)
• M6: 3,376,723 km (0.106 R)
• M7: 5,872,016 km (0.106 R)
• M8: 8,134,833 km (0.092 R)
• M9: 9,082,386 km (0.039 R)
• M10: 10,771,346 km (0.116 R)
• M11: 12,661,515 km (0.093 R)
• M12: 14,377,403 km (0.036 R)
• M13: 15,291,296 km (0.054 R)
• M14: 16,036,293 km (0.111 R)
• M15: 18,191,699 km (0.096 R)
• M16: 21,693,636 km (0.035 R)
• M17: 22,375,503 km (0.062 R)
• M18: 28,255,148 km (0.103 R)
• M19: 30,742,811 km (0.089 R)
• M20: 32,480,241 km (0.027 R)
• M21: 34,512,229 km (0.119 R)
• M22: 35,794,881 km (0.081 R)
• M23: 36,507,864 km (0.094 R)
• M24: 39,454,942 km (0.059 R)
• M25: 41,245,479 km (0.107 R)
• M26: 48,227,362 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.8

Radius: 8.2

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 11.37 AU - 13.01 AU

Year: 15099 Days

Day: 8.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 96,191,144 km

• M1: 102,325 km (0.1 R)
• M2: 394,938 km (0.097 R)
• M3: 729,439 km (0.107 R)
• M4: 1,142,928 km (0.115 R)
• M5: 2,135,210 km (0.092 R)
• M6: 2,921,646 km (0.031 R)
• M7: 6,677,151 km (0.104 R)
• M8: 7,475,406 km (0.074 R)
• M9: 8,912,293 km (0.117 R)
• M10: 9,618,096 km (0.082 R)
• M11: 10,037,868 km (0.082 R)
• M12: 10,469,757 km (0.112 R)
• M13: 10,914,062 km (0.048 R)
• M14: 13,586,030 km (0.077 R)
• M15: 18,527,098 km (0.095 R)
• M16: 19,342,257 km (0.087 R)
• M17: 38,657,885 km (0.11 R)
• M18: 39,585,392 km (0.03 R)
• M19: 43,018,812 km (0.092 R)
• M20: 44,302,063 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.1

Radius: 5.6

Gravity: 17.35 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 15.23 AU - 24.91 AU

Year: 31898 Days

Day: 20 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 96,191,144 km

• M1: 82,428 km (0.114 R)
• M2: 708,346 km (0.104 R)
• M3: 1,208,900 km (0.098 R)
• M4: 1,739,674 km (0.086 R)
• M5: 2,134,762 km (0.112 R)
• M6: 2,462,830 km (0.075 R)
• M7: 3,619,072 km (0.088 R)
• M8: 7,039,627 km (0.1 R)
• M9: 7,396,568 km (0.091 R)
• M10: 8,426,250 km (0.092 R)
• M11: 9,859,397 km (0.085 R)
• M12: 11,171,819 km (0.081 R)
• M13: 12,302,330 km (0.118 R)
• M14: 13,899,437 km (0.062 R)
• M15: 17,964,460 km (0.071 R)
• M16: 18,248,098 km (0.107 R)
• M17: 20,215,160 km (0.074 R)
• M18: 22,978,083 km (0.077 R)
• M19: 25,385,562 km (0.074 R)
• M20: 26,834,268 km (0.111 R)
• M21: 28,592,791 km (0.107 R)
• M22: 40,783,372 km (0.048 R)
• M23: 43,952,303 km (0.117 R)
• M24: 44,295,182 km (0.104 R)
• M25: 51,722,267 km (0.105 R)
• M26: 53,262,078 km (0.089 R)
• M27: 57,859,071 km (0.07 R)
• M28: 61,850,342 km (0.045 R)
• M29: 66,922,757 km (0.101 R)
• M30: 76,639,887 km (0.096 R)
• M31: 79,144,604 km (0.115 R)
• M32: 86,985,627 km (0.108 R)
• M33: 87,797,195 km (0.108 R)
• M34: 89,985,662 km (0.091 R)

Kuiper Belt

Range: 30.9 - 52.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 19,275 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit