🌌 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: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.56 AU - 0.68 AU

Year: 310 Days

Day: 14.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.4

Radius: 12.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.59 AU - 0.85 AU

Year: 388 Days

Day: 5.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,154,977 km

• M1: 159,621 km (0.093 R)
• M2: 574,157 km (0.079 R)
• M3: 1,190,350 km (0.048 R)
• M4: 1,612,515 km (0.091 R)
• M5: 2,023,012 km (0.086 R)
• M6: 2,547,652 km (0.088 R)
• M7: 3,203,638 km (0.094 R)
• M8: 3,958,060 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.7

Radius: 10.6

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.79 AU - 1.11 AU

Year: 589 Days

Day: 5.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,154,977 km

• M1: 131,796 km (0.069 R)
• M2: 579,243 km (0.117 R)
• M3: 941,868 km (0.097 R)
• M4: 1,275,322 km (0.086 R)
• M5: 1,988,006 km (0.108 R)
• M6: 2,924,489 km (0.095 R)
• M7: 3,725,585 km (0.115 R)
• M8: 4,316,048 km (0.108 R)
• M9: 4,716,073 km (0.101 R)
• M10: 5,071,069 km (0.073 R)
• M11: 5,444,016 km (0.099 R)
• M12: 5,873,661 km (0.049 R)
• M13: 6,386,333 km (0.108 R)
• M14: 7,233,356 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.1

Radius: 12.2

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.46 AU - 1.72 AU

Year: 1275 Days

Day: 12.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,154,977 km

• M1: 151,692 km (0.091 R)
• M2: 593,305 km (0.105 R)
• M3: 1,070,522 km (0.12 R)
• M4: 1,575,266 km (0.106 R)
• M5: 2,448,319 km (0.085 R)
• M6: 3,078,724 km (0.094 R)
• M7: 4,120,225 km (0.086 R)
• M8: 5,660,185 km (0.118 R)
• M9: 6,429,866 km (0.088 R)
• M10: 6,914,563 km (0.093 R)
• M11: 7,554,543 km (0.104 R)
• M12: 8,012,013 km (0.069 R)
• M13: 8,835,250 km (0.042 R)
• M14: 10,191,056 km (0.112 R)
• M15: 10,683,682 km (0.09 R)
• M16: 11,123,350 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.2

Radius: 11.6

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.01 AU - 3.11 AU

Year: 3403 Days

Day: 11.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,154,977 km

• M1: 144,212 km (0.063 R)
• M2: 808,427 km (0.119 R)
• M3: 1,529,339 km (0.078 R)
• M4: 2,175,452 km (0.076 R)
• M5: 2,807,204 km (0.059 R)
• M6: 3,638,071 km (0.119 R)
• M7: 4,188,740 km (0.075 R)
• M8: 5,325,684 km (0.1 R)
• M9: 6,719,188 km (0.062 R)
• M10: 7,517,592 km (0.091 R)
• M11: 8,485,640 km (0.046 R)
• M12: 9,075,056 km (0.094 R)
• M13: 10,501,471 km (0.119 R)
• M14: 11,890,338 km (0.111 R)
• M15: 16,676,273 km (0.1 R)
• M16: 17,134,940 km (0.084 R)
• M17: 17,543,193 km (0.047 R)
• M18: 17,957,878 km (0.041 R)
• M19: 19,303,960 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 9.5

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.65 AU - 4.19 AU

Year: 4935 Days

Day: 11 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,154,977 km

• M1: 118,182 km (0.09 R)
• M2: 449,691 km (0.054 R)
• M3: 898,485 km (0.118 R)
• M4: 1,464,114 km (0.029 R)
• M5: 2,571,737 km (0.096 R)
• M6: 3,177,908 km (0.056 R)
• M7: 3,515,251 km (0.087 R)
• M8: 5,370,264 km (0.119 R)
• M9: 5,758,770 km (0.052 R)
• M10: 7,990,621 km (0.059 R)
• M11: 10,060,307 km (0.103 R)
• M12: 10,791,841 km (0.032 R)
• M13: 11,123,050 km (0.069 R)
• M14: 11,905,298 km (0.106 R)
• M15: 14,529,843 km (0.116 R)
• M16: 15,227,118 km (0.081 R)
• M17: 16,688,241 km (0.073 R)
• M18: 18,508,548 km (0.117 R)
• M19: 24,110,539 km (0.107 R)
• M20: 25,252,869 km (0.07 R)
• M21: 33,472,224 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.6

Radius: 12.1

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 4.57 AU - 6.75 AU

Year: 8562 Days

Day: 13.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,154,977 km

• M1: 152,590 km (0.111 R)
• M2: 714,479 km (0.115 R)
• M3: 1,645,726 km (0.093 R)
• M4: 2,210,159 km (0.066 R)
• M5: 2,773,545 km (0.071 R)
• M6: 3,328,553 km (0.111 R)
• M7: 3,865,609 km (0.104 R)
• M8: 4,287,475 km (0.066 R)
• M9: 4,951,690 km (0.076 R)
• M10: 5,450,748 km (0.106 R)
• M11: 6,231,200 km (0.05 R)
• M12: 7,327,304 km (0.114 R)
• M13: 8,743,996 km (0.112 R)
• M14: 10,424,578 km (0.095 R)
• M15: 12,765,186 km (0.105 R)
• M16: 13,922,475 km (0.067 R)
• M17: 15,148,430 km (0.072 R)
• M18: 17,433,687 km (0.088 R)
• M19: 19,802,420 km (0.061 R)
• M20: 23,360,904 km (0.115 R)
• M21: 24,057,881 km (0.071 R)
• M22: 25,820,293 km (0.091 R)
• M23: 26,985,661 km (0.101 R)
• M24: 28,622,860 km (0.07 R)
• M25: 29,870,955 km (0.069 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 15,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit