🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.58 AU - 0.64 AU

Year: 308 Days

Day: 37.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,562,934 km

• M1: 28,424 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.8

Radius: 8.1

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.71 AU - 0.91 AU

Year: 471 Days

Day: 9 Hours

Environment

Temp: -140 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,562,934 km

• M1: 100,679 km (0.073 R)
• M2: 548,127 km (0.114 R)
• M3: 977,173 km (0.059 R)
• M4: 1,308,383 km (0.093 R)
• M5: 1,596,359 km (0.07 R)
• M6: 1,853,966 km (0.085 R)
• M7: 2,201,931 km (0.072 R)
• M8: 2,553,037 km (0.09 R)
• M9: 2,996,745 km (0.113 R)
• M10: 3,654,377 km (0.112 R)
• M11: 4,304,080 km (0.1 R)
• M12: 5,403,026 km (0.07 R)
• M13: 5,955,192 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.4

Radius: 10.5

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.85 AU - 1.11 AU

Year: 626 Days

Day: 11.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,562,934 km

• M1: 130,599 km (0.117 R)
• M2: 582,534 km (0.078 R)
• M3: 946,356 km (0.081 R)
• M4: 1,276,070 km (0.112 R)
• M5: 1,793,529 km (0.075 R)
• M6: 2,300,666 km (0.057 R)
• M7: 2,794,638 km (0.108 R)
• M8: 3,239,991 km (0.112 R)
• M9: 3,789,912 km (0.115 R)
• M10: 4,901,873 km (0.093 R)
• M11: 5,743,062 km (0.048 R)
• M12: 6,487,312 km (0.096 R)
• M13: 7,070,145 km (0.082 R)
• M14: 7,973,267 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.2

Radius: 8.1

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.89 AU - 1.93 AU

Year: 1704 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,562,934 km

• M1: 100,679 km (0.114 R)
• M2: 440,865 km (0.09 R)
• M3: 773,720 km (0.112 R)
• M4: 1,240,166 km (0.103 R)
• M5: 2,093,622 km (0.117 R)
• M6: 2,452,208 km (0.101 R)
• M7: 2,896,514 km (0.099 R)
• M8: 3,427,437 km (0.076 R)
• M9: 3,853,043 km (0.11 R)
• M10: 4,940,470 km (0.117 R)
• M11: 6,092,972 km (0.069 R)
• M12: 6,374,515 km (0.096 R)
• M13: 8,501,647 km (0.057 R)
• M14: 8,984,250 km (0.085 R)
• M15: 9,621,836 km (0.111 R)
• M16: 9,899,190 km (0.11 R)
• M17: 10,506,109 km (0.03 R)
• M18: 12,273,309 km (0.031 R)
• M19: 13,570,472 km (0.117 R)
• M20: 14,499,474 km (0.109 R)
• M21: 15,329,144 km (0.105 R)
• M22: 15,947,731 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.2

Radius: 13.3

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.14 AU - 3.62 AU

Year: 4012 Days

Day: 9 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,562,934 km

• M1: 165,455 km (0.104 R)
• M2: 805,285 km (0.111 R)
• M3: 1,389,615 km (0.097 R)
• M4: 2,013,737 km (0.084 R)
• M5: 2,572,335 km (0.068 R)
• M6: 3,048,954 km (0.056 R)
• M7: 3,605,159 km (0.073 R)
• M8: 4,342,976 km (0.099 R)
• M9: 5,720,174 km (0.076 R)
• M10: 6,328,289 km (0.083 R)
• M11: 8,199,010 km (0.049 R)
• M12: 9,011,626 km (0.117 R)
• M13: 9,836,808 km (0.106 R)
• M14: 10,372,518 km (0.055 R)
• M15: 12,857,638 km (0.091 R)
• M16: 13,299,251 km (0.117 R)
• M17: 13,801,750 km (0.102 R)
• M18: 15,828,203 km (0.074 R)
• M19: 19,549,151 km (0.09 R)
• M20: 20,199,452 km (0.084 R)
• M21: 21,338,341 km (0.076 R)
• M22: 25,012,016 km (0.084 R)
• M23: 25,856,346 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.8

Radius: 10.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.84 AU - 4.26 AU

Year: 4319 Days

Day: 12.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,562,934 km

• M1: 135,536 km (0.092 R)
• M2: 506,987 km (0.117 R)
• M3: 1,235,080 km (0.102 R)
• M4: 1,820,606 km (0.085 R)
• M5: 2,353,623 km (0.093 R)
• M6: 3,213,961 km (0.093 R)
• M7: 5,730,496 km (0.082 R)
• M8: 6,623,745 km (0.073 R)
• M9: 7,386,844 km (0.104 R)
• M10: 8,685,652 km (0.093 R)
• M11: 9,056,505 km (0.099 R)
• M12: 9,405,667 km (0.114 R)
• M13: 10,335,418 km (0.058 R)
• M14: 10,681,886 km (0.096 R)
• M15: 12,887,109 km (0.112 R)
• M16: 13,782,153 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.5

Radius: 5.8

Gravity: 29.21 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.2 AU - 10.32 AU

Year: 18194 Days

Day: 19.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 107.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 80,562,934 km

• M1: 72,106 km (0.096 R)
• M2: 257,308 km (0.117 R)
• M3: 678,127 km (0.044 R)
• M4: 964,757 km (0.099 R)
• M5: 3,320,175 km (0.079 R)
• M6: 3,642,858 km (0.076 R)
• M7: 4,920,573 km (0.06 R)
• M8: 5,379,689 km (0.08 R)
• M9: 8,428,942 km (0.068 R)
• M10: 8,918,277 km (0.074 R)
• M11: 11,853,088 km (0.096 R)
• M12: 14,436,045 km (0.115 R)
• M13: 21,073,553 km (0.071 R)
• M14: 24,498,297 km (0.056 R)
• M15: 29,370,400 km (0.055 R)
• M16: 31,127,727 km (0.076 R)
• M17: 32,032,195 km (0.086 R)
• M18: 34,988,848 km (0.028 R)
• M19: 39,306,841 km (0.095 R)
• M20: 50,028,819 km (0.116 R)
• M21: 50,557,797 km (0.087 R)
• M22: 51,626,824 km (0.117 R)
• M23: 52,167,021 km (0.063 R)
• M24: 52,710,810 km (0.114 R)
• M25: 59,142,022 km (0.096 R)
• M26: 59,338,594 km (0.1 R)
• M27: 67,568,571 km (0.116 R)
• M28: 77,699,937 km (0.076 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 11,486 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit