🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.56 AU - 0.72 AU

Year: 336 Days

Day: 14.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,554,455 km

• M1: 39,943 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.1

Radius: 14

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.77 AU - 1.07 AU

Year: 579 Days

Day: 8.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,554,455 km

• M1: 174,132 km (0.032 R)
• M2: 935,735 km (0.118 R)
• M3: 1,426,117 km (0.059 R)
• M4: 1,874,611 km (0.091 R)
• M5: 2,359,458 km (0.08 R)
• M6: 3,183,443 km (0.096 R)
• M7: 3,692,674 km (0.116 R)
• M8: 4,192,331 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.7

Radius: 11.1

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.9 AU - 1.3 AU

Year: 757 Days

Day: 10 Hours

Environment

Temp: -160 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,554,455 km

• M1: 142,866 km (0.103 R)
• M2: 533,167 km (0.093 R)
• M3: 979,567 km (0.079 R)
• M4: 1,864,737 km (0.112 R)
• M5: 2,317,720 km (0.075 R)
• M6: 2,795,984 km (0.055 R)
• M7: 3,448,231 km (0.092 R)
• M8: 3,862,767 km (0.052 R)
• M9: 5,517,020 km (0.069 R)
• M10: 6,501,972 km (0.072 R)
• M11: 8,406,952 km (0.08 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.2

Radius: 7.3

Gravity: 16.95 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.81 AU - 5.99 AU

Year: 9401 Days

Day: 22.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,554,455 km

• M1: 103,372 km (0.059 R)
• M2: 333,753 km (0.101 R)
• M3: 769,531 km (0.077 R)
• M4: 1,160,879 km (0.105 R)
• M5: 2,499,182 km (0.099 R)
• M6: 3,313,294 km (0.081 R)
• M7: 3,768,071 km (0.11 R)
• M8: 4,010,869 km (0.043 R)
• M9: 4,379,926 km (0.078 R)
• M10: 6,614,021 km (0.101 R)
• M11: 7,170,525 km (0.062 R)
• M12: 7,418,409 km (0.1 R)
• M13: 15,575,981 km (0.101 R)
• M14: 21,163,012 km (0.099 R)
• M15: 24,633,982 km (0.117 R)
• M16: 27,852,730 km (0.119 R)
• M17: 30,362,384 km (0.106 R)
• M18: 31,341,053 km (0.108 R)
• M19: 36,309,348 km (0.086 R)
• M20: 36,919,109 km (0.106 R)
• M21: 37,164,898 km (0.116 R)
• M22: 37,535,602 km (0.113 R)
• M23: 38,410,300 km (0.1 R)
• M24: 49,839,877 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.2

Radius: 5.9

Gravity: 22.82 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.92 AU - 9.14 AU

Year: 13555 Days

Day: 23.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 40,554,455 km

• M1: 73,453 km (0.087 R)
• M2: 257,308 km (0.104 R)
• M3: 463,454 km (0.043 R)
• M4: 1,082,789 km (0.062 R)
• M5: 1,720,076 km (0.069 R)
• M6: 1,944,324 km (0.115 R)
• M7: 2,168,571 km (0.106 R)
• M8: 3,898,820 km (0.097 R)
• M9: 5,074,360 km (0.081 R)
• M10: 5,575,363 km (0.098 R)
• M11: 7,499,790 km (0.11 R)
• M12: 9,612,710 km (0.119 R)
• M13: 10,776,283 km (0.09 R)
• M14: 13,049,572 km (0.081 R)
• M15: 13,513,026 km (0.057 R)
• M16: 14,472,547 km (0.074 R)
• M17: 17,147,506 km (0.081 R)
• M18: 21,293,611 km (0.094 R)
• M19: 22,780,165 km (0.12 R)
• M20: 24,633,533 km (0.103 R)
• M21: 25,239,106 km (0.068 R)
• M22: 26,690,654 km (0.098 R)
• M23: 27,222,175 km (0.061 R)
• M24: 29,194,623 km (0.119 R)
• M25: 30,445,710 km (0.091 R)
• M26: 30,676,988 km (0.083 R)
• M27: 31,495,737 km (0.059 R)
• M28: 35,680,139 km (0.083 R)
• M29: 36,585,356 km (0.112 R)
• M30: 38,711,740 km (0.032 R)
• M31: 44,981,537 km (0.044 R)
• M32: 49,304,616 km (0.032 R)
• M33: 49,943,997 km (0.115 R)
• M34: 50,427,198 km (0.114 R)
• M35: 59,124,519 km (0.079 R)
• M36: 60,391,164 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.2

Radius: 3.1

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.33 AU - 11.15 AU

Year: 18425 Days

Day: 20.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,554,455 km

• M1: 38,596 km (0.117 R)
• M2: 186,549 km (0.067 R)
• M3: 1,913,207 km (0.118 R)
• M4: 2,244,267 km (0.106 R)
• M5: 2,750,058 km (0.117 R)
• M6: 13,061,091 km (0.087 R)
• M7: 16,657,125 km (0.116 R)
• M8: 17,475,275 km (0.112 R)
• M9: 24,745,133 km (0.077 R)
• M10: 32,001,079 km (0.083 R)
• M11: 40,433,013 km (0.086 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: 531 - 12,187 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit