🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.8

Radius: 12.7

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.55 AU - 0.69 AU

Year: 337 Days

Day: 11.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,493,111 km

• M1: 157,975 km (0.116 R)
• M2: 697,425 km (0.075 R)
• M3: 1,207,704 km (0.044 R)
• M4: 1,604,437 km (0.059 R)
• M5: 2,395,361 km (0.086 R)
• M6: 2,915,662 km (0.09 R)
• M7: 3,533,502 km (0.067 R)
• M8: 4,636,936 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 11.4

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.45 AU - 2.13 AU

Year: 1653 Days

Day: 9.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,493,111 km

• M1: 141,819 km (0.055 R)
• M2: 559,646 km (0.114 R)
• M3: 959,521 km (0.099 R)
• M4: 1,682,826 km (0.082 R)
• M5: 3,408,288 km (0.066 R)
• M6: 4,024,332 km (0.108 R)
• M7: 6,164,180 km (0.107 R)
• M8: 10,708,216 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.8

Radius: 8.2

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.74 AU - 2.42 AU

Year: 2071 Days

Day: 12.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,493,111 km

• M1: 102,026 km (0.1 R)
• M2: 424,409 km (0.114 R)
• M3: 682,465 km (0.115 R)
• M4: 1,050,626 km (0.096 R)
• M5: 1,462,170 km (0.054 R)
• M6: 2,324,452 km (0.115 R)
• M7: 3,172,223 km (0.056 R)
• M8: 3,904,804 km (0.047 R)
• M9: 5,141,080 km (0.098 R)
• M10: 7,456,706 km (0.096 R)
• M11: 8,615,940 km (0.083 R)
• M12: 9,926,268 km (0.094 R)
• M13: 12,356,635 km (0.074 R)
• M14: 14,971,456 km (0.083 R)
• M15: 15,251,653 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.9

Radius: 10.9

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.99 AU - 3.19 AU

Year: 2877 Days

Day: 10.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,493,111 km

• M1: 135,685 km (0.098 R)
• M2: 755,619 km (0.092 R)
• M3: 1,463,366 km (0.045 R)
• M4: 1,940,584 km (0.089 R)
• M5: 2,469,861 km (0.049 R)
• M6: 3,288,012 km (0.099 R)
• M7: 3,939,510 km (0.072 R)
• M8: 5,924,375 km (0.115 R)
• M9: 10,418,295 km (0.12 R)
• M10: 12,531,066 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.8

Radius: 9.7

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.25 AU - 4.71 AU

Year: 5481 Days

Day: 10.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,493,111 km

• M1: 121,773 km (0.115 R)
• M2: 865,124 km (0.118 R)
• M3: 1,867,729 km (0.114 R)
• M4: 2,186,672 km (0.115 R)
• M5: 2,900,852 km (0.089 R)
• M6: 3,332,143 km (0.064 R)
• M7: 3,914,677 km (0.104 R)
• M8: 4,863,277 km (0.098 R)
• M9: 5,641,784 km (0.076 R)
• M10: 6,286,252 km (0.051 R)
• M11: 7,756,350 km (0.06 R)
• M12: 8,367,458 km (0.119 R)
• M13: 10,056,717 km (0.078 R)
• M14: 11,775,447 km (0.083 R)
• M15: 18,596,511 km (0.042 R)
• M16: 19,041,864 km (0.065 R)
• M17: 20,220,097 km (0.063 R)
• M18: 20,895,232 km (0.106 R)
• M19: 22,865,735 km (0.058 R)
• M20: 24,498,746 km (0.032 R)
• M21: 25,499,406 km (0.063 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78

Radius: 7.8

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.76 AU - 11.88 AU

Year: 21241 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,493,111 km

• M1: 97,837 km (0.064 R)
• M2: 456,722 km (0.078 R)
• M3: 2,068,340 km (0.098 R)
• M4: 2,954,408 km (0.081 R)
• M5: 4,941,367 km (0.082 R)
• M6: 5,206,604 km (0.072 R)
• M7: 7,529,859 km (0.055 R)
• M8: 8,703,604 km (0.083 R)
• M9: 17,784,195 km (0.064 R)
• M10: 18,620,896 km (0.061 R)
• M11: 27,458,091 km (0.092 R)
• M12: 29,915,535 km (0.099 R)
• M13: 36,359,314 km (0.115 R)
• M14: 38,160,921 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.1

Radius: 6.8

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 10.28 AU - 10.4 AU

Year: 22950 Days

Day: 20 Hours

Environment

Temp: -227 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,493,111 km

• M1: 96,640 km (0.091 R)
• M2: 332,706 km (0.118 R)
• M3: 1,929,663 km (0.086 R)
• M4: 2,260,723 km (0.078 R)
• M5: 3,819,832 km (0.091 R)
• M6: 6,246,160 km (0.095 R)
• M7: 7,066,704 km (0.055 R)
• M8: 8,112,393 km (0.065 R)
• M9: 9,144,020 km (0.11 R)
• M10: 10,506,857 km (0.091 R)
• M11: 11,011,002 km (0.098 R)
• M12: 17,232,927 km (0.115 R)
• M13: 18,472,046 km (0.086 R)
• M14: 19,959,647 km (0.074 R)
• M15: 22,133,304 km (0.077 R)
• M16: 27,413,660 km (0.11 R)
• M17: 27,769,105 km (0.115 R)
• M18: 29,841,484 km (0.037 R)
• M19: 35,259,620 km (0.117 R)
• M20: 40,222,080 km (0.077 R)
• M21: 41,765,781 km (0.092 R)
• M22: 46,129,999 km (0.114 R)
• M23: 49,202,440 km (0.101 R)
• M24: 66,627,900 km (0.088 R)
• M25: 72,560,802 km (0.084 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 19,329 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit