🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.8

Radius: 13.5

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.79 AU - 0.79 AU

Year: 476 Days

Day: 9.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,646,627 km

• M1: 167,849 km (0.094 R)
• M2: 785,538 km (0.08 R)
• M3: 1,317,060 km (0.107 R)
• M4: 1,750,295 km (0.055 R)
• M5: 2,308,894 km (0.033 R)
• M6: 2,851,186 km (0.077 R)
• M7: 3,632,535 km (0.088 R)
• M8: 4,897,385 km (0.099 R)
• M9: 5,413,199 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.6

Radius: 9.8

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.81 AU - 0.85 AU

Year: 513 Days

Day: 12.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,646,627 km

• M1: 121,922 km (0.045 R)
• M2: 502,350 km (0.104 R)
• M3: 852,259 km (0.052 R)
• M4: 1,213,837 km (0.089 R)
• M5: 1,546,692 km (0.111 R)
• M6: 1,858,604 km (0.059 R)
• M7: 2,306,350 km (0.032 R)
• M8: 2,879,909 km (0.101 R)
• M9: 3,507,771 km (0.102 R)
• M10: 3,834,343 km (0.111 R)
• M11: 4,384,714 km (0.107 R)
• M12: 4,717,868 km (0.067 R)
• M13: 5,133,601 km (0.118 R)
• M14: 5,983,616 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.2

Radius: 8.3

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.02 AU - 1.04 AU

Year: 709 Days

Day: 8.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,646,627 km

• M1: 125,213 km (0.092 R)
• M2: 464,352 km (0.104 R)
• M3: 899,981 km (0.081 R)
• M4: 1,245,851 km (0.054 R)
• M5: 1,687,464 km (0.084 R)
• M6: 2,086,890 km (0.058 R)
• M7: 2,792,394 km (0.078 R)
• M8: 3,200,497 km (0.119 R)
• M9: 3,675,620 km (0.08 R)
• M10: 4,587,269 km (0.115 R)
• M11: 5,297,709 km (0.112 R)
• M12: 5,568,482 km (0.068 R)
• M13: 6,477,588 km (0.084 R)
• M14: 6,787,704 km (0.12 R)
• M15: 7,064,460 km (0.085 R)
• M16: 7,504,876 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.2

Radius: 10.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.01 AU - 1.51 AU

Year: 959 Days

Day: 6.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,646,627 km

• M1: 128,056 km (0.078 R)
• M2: 538,253 km (0.068 R)
• M3: 1,264,551 km (0.077 R)
• M4: 1,701,526 km (0.104 R)
• M5: 2,501,426 km (0.114 R)
• M6: 3,060,024 km (0.12 R)
• M7: 3,420,107 km (0.082 R)
• M8: 4,109,603 km (0.106 R)
• M9: 4,991,632 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.5

Radius: 8.3

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.3 AU - 1.86 AU

Year: 1347 Days

Day: 12.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,646,627 km

• M1: 103,223 km (0.109 R)
• M2: 433,385 km (0.08 R)
• M3: 774,767 km (0.114 R)
• M4: 1,137,393 km (0.105 R)
• M5: 1,442,871 km (0.117 R)
• M6: 1,822,401 km (0.064 R)
• M7: 2,510,252 km (0.093 R)
• M8: 3,202,442 km (0.104 R)
• M9: 3,757,001 km (0.093 R)
• M10: 4,551,964 km (0.079 R)
• M11: 4,903,519 km (0.048 R)
• M12: 5,173,992 km (0.098 R)
• M13: 6,312,731 km (0.071 R)
• M14: 6,845,299 km (0.089 R)
• M15: 7,687,236 km (0.113 R)
• M16: 8,513,316 km (0.114 R)
• M17: 10,499,377 km (0.059 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.5

Radius: 5.5

Gravity: 17.31 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.08 AU - 7.4 AU

Year: 13213 Days

Day: 18.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,646,627 km

• M1: 70,461 km (0.066 R)
• M2: 257,159 km (0.089 R)
• M3: 483,650 km (0.117 R)
• M4: 2,527,157 km (0.114 R)
• M5: 3,415,918 km (0.091 R)
• M6: 5,032,622 km (0.04 R)
• M7: 5,574,914 km (0.1 R)
• M8: 5,969,703 km (0.09 R)
• M9: 7,018,085 km (0.065 R)
• M10: 11,113,476 km (0.053 R)
• M11: 11,451,567 km (0.085 R)
• M12: 20,908,546 km (0.109 R)
• M13: 23,020,270 km (0.052 R)
• M14: 24,410,034 km (0.081 R)
• M15: 35,859,806 km (0.088 R)
• M16: 43,283,900 km (0.072 R)
• M17: 47,279,360 km (0.042 R)
• M18: 50,432,434 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.2

Radius: 6.2

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.18 AU - 9.82 AU

Year: 16808 Days

Day: 18.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,646,627 km

• M1: 79,885 km (0.096 R)
• M2: 380,876 km (0.1 R)
• M3: 601,982 km (0.107 R)
• M4: 1,065,885 km (0.033 R)
• M5: 1,744,610 km (0.061 R)
• M6: 2,640,253 km (0.087 R)
• M7: 3,199,599 km (0.05 R)
• M8: 4,116,634 km (0.105 R)
• M9: 4,896,488 km (0.118 R)
• M10: 6,106,884 km (0.118 R)
• M11: 7,623,507 km (0.117 R)
• M12: 10,516,431 km (0.049 R)
• M13: 11,223,431 km (0.059 R)
• M14: 13,534,269 km (0.078 R)
• M15: 14,492,294 km (0.114 R)
• M16: 16,475,662 km (0.114 R)
• M17: 18,201,723 km (0.096 R)
• M18: 20,505,081 km (0.096 R)
• M19: 22,171,302 km (0.111 R)
• M20: 32,498,342 km (0.109 R)
• M21: 38,045,132 km (0.112 R)
• M22: 41,041,278 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.8

Radius: 6.7

Gravity: 17.57 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 9.75 AU - 10.75 AU

Year: 22258 Days

Day: 17.7 Hours

Environment

Temp: -245 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 85,646,627 km

• M1: 84,972 km (0.11 R)
• M2: 489,035 km (0.1 R)
• M3: 778,208 km (0.116 R)
• M4: 1,044,941 km (0.083 R)
• M5: 1,452,595 km (0.071 R)
• M6: 1,675,646 km (0.078 R)
• M7: 1,921,585 km (0.097 R)
• M8: 4,312,757 km (0.118 R)
• M9: 5,767,297 km (0.076 R)
• M10: 6,513,491 km (0.099 R)
• M11: 8,466,192 km (0.107 R)
• M12: 11,366,745 km (0.102 R)
• M13: 13,333,209 km (0.071 R)
• M14: 14,474,791 km (0.079 R)
• M15: 15,680,101 km (0.052 R)
• M16: 18,380,791 km (0.096 R)
• M17: 20,180,902 km (0.12 R)
• M18: 24,682,452 km (0.116 R)
• M19: 26,750,493 km (0.119 R)
• M20: 29,180,710 km (0.118 R)
• M21: 34,057,601 km (0.104 R)
• M22: 35,463,222 km (0.091 R)
• M23: 36,324,906 km (0.105 R)
• M24: 39,911,665 km (0.105 R)
• M25: 41,157,815 km (0.049 R)
• M26: 43,400,736 km (0.074 R)
• M27: 44,884,896 km (0.098 R)
• M28: 51,160,078 km (0.102 R)
• M29: 51,708,055 km (0.062 R)
• M30: 58,591,352 km (0.093 R)
• M31: 70,924,201 km (0.09 R)
• M32: 72,520,410 km (0.139 R)
• M33: 77,933,310 km (0.144 R)
• M34: 80,614,852 km (0.084 R)
• M35: 83,357,130 km (0.088 R)
• M36: 84,878,840 km (0.209 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 16,060 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit