🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.5

Radius: 13.4

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.24 AU - 1.34 AU

Year: 961 Days

Day: 11.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,427,996 km

• M1: 166,802 km (0.113 R)
• M2: 692,189 km (0.085 R)
• M3: 1,191,547 km (0.054 R)
• M4: 1,627,924 km (0.104 R)
• M5: 2,496,190 km (0.115 R)
• M6: 3,308,357 km (0.036 R)
• M7: 4,602,079 km (0.056 R)
• M8: 5,035,464 km (0.091 R)
• M9: 5,630,265 km (0.066 R)
• M10: 6,230,153 km (0.057 R)
• M11: 8,090,402 km (0.114 R)
• M12: 8,777,206 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.8

Radius: 10.5

Gravity: 9.07 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.09 AU - 1.57 AU

Year: 1006 Days

Day: 13.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,427,996 km

• M1: 130,599 km (0.111 R)
• M2: 583,731 km (0.054 R)
• M3: 1,010,982 km (0.096 R)
• M4: 1,361,490 km (0.111 R)
• M5: 2,108,432 km (0.063 R)
• M6: 2,483,325 km (0.096 R)
• M7: 2,849,540 km (0.084 R)
• M8: 3,179,852 km (0.12 R)
• M9: 3,660,510 km (0.094 R)
• M10: 4,086,266 km (0.114 R)
• M11: 4,786,982 km (0.057 R)
• M12: 5,524,051 km (0.058 R)
• M13: 6,520,672 km (0.081 R)
• M14: 6,878,211 km (0.07 R)
• M15: 7,274,047 km (0.028 R)
• M16: 10,229,951 km (0.091 R)
• M17: 10,812,485 km (0.087 R)
• M18: 11,145,640 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.8

Radius: 10.3

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.1 AU - 1.7 AU

Year: 1087 Days

Day: 6.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 59,427,996 km

• M1: 129,851 km (0.05 R)
• M2: 470,485 km (0.11 R)
• M3: 3,336,930 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.1

Radius: 8.8

Gravity: 12.53 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.14 AU - 1.78 AU

Year: 1157 Days

Day: 13.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,427,996 km

• M1: 109,954 km (0.098 R)
• M2: 387,608 km (0.078 R)
• M3: 662,120 km (0.085 R)
• M4: 1,055,114 km (0.106 R)
• M5: 1,383,631 km (0.072 R)
• M6: 2,028,398 km (0.112 R)
• M7: 2,371,126 km (0.101 R)
• M8: 2,874,373 km (0.107 R)
• M9: 6,794,885 km (0.089 R)
• M10: 8,198,711 km (0.11 R)
• M11: 8,746,090 km (0.056 R)
• M12: 9,691,399 km (0.081 R)
• M13: 10,336,465 km (0.117 R)
• M14: 12,295,150 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.4

Radius: 11.6

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.32 AU - 1.64 AU

Year: 1181 Days

Day: 9.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,427,996 km

• M1: 144,960 km (0.112 R)
• M2: 508,334 km (0.111 R)
• M3: 1,095,804 km (0.1 R)
• M4: 1,468,303 km (0.074 R)
• M5: 1,927,269 km (0.087 R)
• M6: 2,446,374 km (0.107 R)
• M7: 2,989,115 km (0.12 R)
• M8: 3,399,761 km (0.096 R)
• M9: 3,945,644 km (0.062 R)
• M10: 5,154,395 km (0.047 R)
• M11: 5,833,868 km (0.056 R)
• M12: 6,229,106 km (0.095 R)
• M13: 6,807,900 km (0.1 R)
• M14: 7,346,602 km (0.103 R)
• M15: 8,019,792 km (0.087 R)
• M16: 9,311,271 km (0.087 R)
• M17: 10,607,387 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.7

Radius: 14

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.4 AU - 1.84 AU

Year: 1353 Days

Day: 6.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,427,996 km

• M1: 174,581 km (0.106 R)
• M2: 688,001 km (0.099 R)
• M3: 1,139,487 km (0.03 R)
• M4: 1,832,275 km (0.05 R)
• M5: 2,366,938 km (0.093 R)
• M6: 3,828,359 km (0.079 R)
• M7: 4,488,535 km (0.106 R)
• M8: 5,276,766 km (0.062 R)
• M9: 5,751,440 km (0.086 R)
• M10: 6,703,331 km (0.065 R)
• M11: 7,688,882 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 13.1

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.62 AU - 3.84 AU

Year: 3808 Days

Day: 7.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,427,996 km

• M1: 164,109 km (0.095 R)
• M2: 597,344 km (0.069 R)
• M3: 1,237,474 km (0.085 R)
• M4: 2,879,460 km (0.111 R)
• M5: 3,603,813 km (0.117 R)
• M6: 4,019,096 km (0.053 R)
• M7: 5,416,789 km (0.104 R)
• M8: 5,891,164 km (0.104 R)
• M9: 8,920,222 km (0.077 R)
• M10: 9,482,560 km (0.106 R)
• M11: 11,814,941 km (0.099 R)
• M12: 12,372,193 km (0.09 R)
• M13: 16,482,095 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566.6

Radius: 3.8

Gravity: 39.24 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.42 AU - 9.82 AU

Year: 15179 Days

Day: 21.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 59,427,996 km

• M1: 47,273 km (0.1 R)
• M2: 213,775 km (0.041 R)
• M3: 494,421 km (0.064 R)
• M4: 696,976 km (0.091 R)
• M5: 997,519 km (0.079 R)
• M6: 1,436,439 km (0.117 R)
• M7: 1,634,506 km (0.087 R)
• M8: 2,817,676 km (0.076 R)
• M9: 4,291,365 km (0.118 R)
• M10: 4,478,212 km (0.096 R)
• M11: 5,036,811 km (0.038 R)
• M12: 5,640,737 km (0.1 R)
• M13: 8,639,875 km (0.118 R)
• M14: 8,787,977 km (0.069 R)
• M15: 10,757,284 km (0.054 R)
• M16: 13,725,455 km (0.079 R)
• M17: 26,423,921 km (0.116 R)
• M18: 30,109,414 km (0.106 R)
• M19: 39,827,740 km (0.093 R)
• M20: 40,101,056 km (0.025 R)
• M21: 43,335,810 km (0.11 R)
• M22: 47,196,931 km (0.091 R)
• M23: 54,242,393 km (0.038 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 19,802 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit