🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.6

Radius: 14.6

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.42 AU - 0.68 AU

Year: 272 Days

Day: 9.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,253,904 km

• M1: 181,612 km (0.108 R)
• M2: 647,310 km (0.11 R)
• M3: 1,102,088 km (0.115 R)
• M4: 1,619,547 km (0.084 R)
• M5: 2,181,735 km (0.105 R)
• M6: 2,974,006 km (0.074 R)
• M7: 3,469,175 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.8

Radius: 8.7

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.2 AU - 1.74 AU

Year: 1189 Days

Day: 5 Hours

Environment

Temp: -193 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 67,253,904 km

• M1: 111,301 km (0.033 R)
• M2: 538,104 km (0.119 R)
• M3: 1,164,919 km (0.079 R)
• M4: 3,602,616 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.4

Radius: 14.1

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.04 AU - 3.06 AU

Year: 3552 Days

Day: 11.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,253,904 km

• M1: 176,226 km (0.116 R)
• M2: 923,019 km (0.115 R)
• M3: 1,721,273 km (0.093 R)
• M4: 3,022,775 km (0.105 R)
• M5: 3,983,492 km (0.087 R)
• M6: 5,095,752 km (0.051 R)
• M7: 5,938,287 km (0.114 R)
• M8: 8,196,168 km (0.033 R)
• M9: 8,653,040 km (0.11 R)
• M10: 10,689,217 km (0.112 R)
• M11: 11,496,746 km (0.079 R)
• M12: 13,150,999 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.2

Radius: 8.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.99 AU - 4.07 AU

Year: 4423 Days

Day: 9.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,253,904 km

• M1: 107,262 km (0.057 R)
• M2: 552,465 km (0.035 R)
• M3: 915,689 km (0.049 R)
• M4: 1,307,785 km (0.074 R)
• M5: 1,595,012 km (0.11 R)
• M6: 1,878,052 km (0.076 R)
• M7: 2,220,780 km (0.118 R)
• M8: 3,130,934 km (0.058 R)
• M9: 3,615,781 km (0.056 R)
• M10: 3,953,423 km (0.098 R)
• M11: 4,868,064 km (0.113 R)
• M12: 5,140,482 km (0.113 R)
• M13: 6,770,201 km (0.084 R)
• M14: 7,110,387 km (0.06 R)
• M15: 8,751,625 km (0.07 R)
• M16: 9,019,704 km (0.084 R)
• M17: 9,785,197 km (0.035 R)
• M18: 10,898,055 km (0.109 R)
• M19: 11,247,815 km (0.087 R)
• M20: 14,046,193 km (0.084 R)
• M21: 14,414,204 km (0.077 R)
• M22: 15,073,781 km (0.116 R)
• M23: 15,753,254 km (0.086 R)
• M24: 16,861,924 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.1

Radius: 8.5

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3 AU - 4.6 AU

Year: 4940 Days

Day: 13.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,253,904 km

• M1: 105,766 km (0.111 R)
• M2: 669,450 km (0.119 R)
• M3: 1,063,940 km (0.105 R)
• M4: 1,620,145 km (0.092 R)
• M5: 2,964,132 km (0.102 R)
• M6: 4,979,365 km (0.036 R)
• M7: 5,313,866 km (0.107 R)
• M8: 6,407,875 km (0.091 R)
• M9: 7,834,440 km (0.103 R)
• M10: 8,387,055 km (0.066 R)
• M11: 9,105,274 km (0.104 R)
• M12: 10,979,885 km (0.06 R)
• M13: 13,415,189 km (0.094 R)
• M14: 16,765,733 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.5

Radius: 11.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.1 AU - 4.68 AU

Year: 5116 Days

Day: 6.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,253,904 km

• M1: 150,346 km (0.098 R)
• M2: 901,327 km (0.104 R)
• M3: 1,737,430 km (0.073 R)
• M4: 2,774,143 km (0.075 R)
• M5: 4,160,766 km (0.09 R)
• M6: 4,765,590 km (0.11 R)
• M7: 5,342,439 km (0.066 R)
• M8: 6,342,501 km (0.111 R)
• M9: 8,514,363 km (0.105 R)
• M10: 9,747,049 km (0.053 R)
• M11: 13,133,945 km (0.106 R)
• M12: 19,474,052 km (0.119 R)
• M13: 25,002,292 km (0.114 R)
• M14: 26,658,789 km (0.049 R)
• M15: 27,427,722 km (0.11 R)
• M16: 28,652,929 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.7

Radius: 7.6

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 5.76 AU - 8.46 AU

Year: 12643 Days

Day: 19.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 54.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,253,904 km

• M1: 113,246 km (0.106 R)
• M2: 617,690 km (0.062 R)
• M3: 887,265 km (0.078 R)
• M4: 1,301,202 km (0.114 R)
• M5: 4,105,714 km (0.042 R)
• M6: 4,804,485 km (0.109 R)
• M7: 5,950,405 km (0.066 R)
• M8: 18,915,604 km (0.101 R)
• M9: 21,126,361 km (0.115 R)
• M10: 27,176,099 km (0.097 R)
• M11: 29,888,308 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.7

Radius: 6.2

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 9.44 AU - 9.58 AU

Year: 19557 Days

Day: 23 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 67,253,904 km

• M1: 78,688 km (0.061 R)
• M2: 430,991 km (0.111 R)
• M3: 1,005,746 km (0.088 R)
• M4: 1,370,167 km (0.073 R)
• M5: 2,001,919 km (0.106 R)
• M6: 2,299,020 km (0.106 R)
• M7: 2,764,269 km (0.078 R)
• M8: 3,763,284 km (0.093 R)
• M9: 4,740,906 km (0.079 R)
• M10: 5,838,655 km (0.094 R)
• M11: 7,552,897 km (0.091 R)
• M12: 12,193,274 km (0.069 R)
• M13: 12,914,784 km (0.119 R)
• M14: 14,587,288 km (0.101 R)
• M15: 15,626,844 km (0.092 R)
• M16: 16,715,019 km (0.066 R)
• M17: 17,359,038 km (0.073 R)
• M18: 19,390,128 km (0.118 R)
• M19: 21,574,556 km (0.094 R)
• M20: 23,516,037 km (0.106 R)
• M21: 24,120,413 km (0.036 R)
• M22: 33,450,084 km (0.109 R)
• M23: 37,116,279 km (0.101 R)
• M24: 39,327,036 km (0.093 R)
• M25: 41,477,805 km (0.115 R)
• M26: 41,770,418 km (0.098 R)
• M27: 44,313,283 km (0.104 R)
• M28: 47,754,632 km (0.078 R)
• M29: 48,076,118 km (0.104 R)
• M30: 48,398,950 km (0.077 R)
• M31: 48,723,278 km (0.091 R)
• M32: 52,046,446 km (0.105 R)
• M33: 53,763,380 km (0.107 R)
• M34: 54,811,463 km (0.086 R)
• M35: 55,695,138 km (0.025 R)
• M36: 61,387,486 km (0.036 R)
• M37: 62,532,359 km (0.034 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 14,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit