🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 8.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.6 AU - 0.86 AU

Year: 409 Days

Day: 5.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,502,430 km

• M1: 106,962 km (0.049 R)
• M2: 617,390 km (0.093 R)
• M3: 938,727 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 13.3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.66 AU - 1.08 AU

Year: 532 Days

Day: 5.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,502,430 km

• M1: 166,353 km (0.086 R)
• M2: 642,822 km (0.09 R)
• M3: 1,072,467 km (0.07 R)
• M4: 1,749,697 km (0.119 R)
• M5: 2,247,409 km (0.099 R)
• M6: 2,850,438 km (0.084 R)
• M7: 3,323,317 km (0.105 R)
• M8: 3,998,901 km (0.08 R)
• M9: 4,610,008 km (0.086 R)
• M10: 5,249,240 km (0.104 R)
• M11: 5,749,345 km (0.088 R)
• M12: 6,627,485 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.3

Radius: 14.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.73 AU - 1.13 AU

Year: 588 Days

Day: 11.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,502,430 km

• M1: 181,911 km (0.097 R)
• M2: 662,270 km (0.081 R)
• M3: 1,310,328 km (0.025 R)
• M4: 1,918,892 km (0.083 R)
• M5: 2,768,608 km (0.085 R)
• M6: 3,574,641 km (0.049 R)
• M7: 4,818,099 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.3

Radius: 11.3

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.15 AU - 1.61 AU

Year: 1063 Days

Day: 7.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,502,430 km

• M1: 140,472 km (0.111 R)
• M2: 714,180 km (0.088 R)
• M3: 1,129,165 km (0.117 R)
• M4: 2,146,131 km (0.09 R)
• M5: 2,536,282 km (0.048 R)
• M6: 3,014,995 km (0.106 R)
• M7: 3,662,455 km (0.102 R)
• M8: 4,087,313 km (0.099 R)
• M9: 5,155,143 km (0.074 R)
• M10: 5,949,956 km (0.093 R)
• M11: 6,681,041 km (0.038 R)
• M12: 7,862,266 km (0.116 R)
• M13: 8,629,254 km (0.101 R)
• M14: 9,148,209 km (0.068 R)
• M15: 9,841,595 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.4

Radius: 12.9

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.43 AU - 3.73 AU

Year: 4444 Days

Day: 7.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,502,430 km

• M1: 310,416 km (0.079 R)
• M2: 962,662 km (0.088 R)
• M3: 1,395,000 km (0.092 R)
• M4: 2,129,077 km (0.063 R)
• M5: 3,120,612 km (0.065 R)
• M6: 3,904,355 km (0.112 R)
• M7: 4,464,150 km (0.109 R)
• M8: 4,953,933 km (0.111 R)
• M9: 6,946,727 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.5

Radius: 9.5

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.8 AU - 5.36 AU

Year: 7511 Days

Day: 8.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,502,430 km

• M1: 120,127 km (0.028 R)
• M2: 775,515 km (0.103 R)
• M3: 2,603,003 km (0.118 R)
• M4: 2,909,230 km (0.115 R)
• M5: 4,026,576 km (0.082 R)
• M6: 4,627,511 km (0.117 R)
• M7: 6,106,884 km (0.076 R)
• M8: 8,157,422 km (0.044 R)
• M9: 15,399,006 km (0.09 R)
• M10: 16,798,943 km (0.111 R)
• M11: 26,045,887 km (0.118 R)
• M12: 37,523,634 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 670.9

Radius: 7.1

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.68 AU - 8.14 AU

Year: 11916 Days

Day: 18.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,502,430 km

• M1: 146,606 km (0.062 R)
• M2: 410,347 km (0.078 R)
• M3: 2,224,969 km (0.08 R)
• M4: 2,707,123 km (0.095 R)
• M5: 3,232,511 km (0.038 R)
• M6: 4,638,282 km (0.105 R)
• M7: 4,955,729 km (0.066 R)
• M8: 5,186,409 km (0.059 R)
• M9: 6,032,534 km (0.117 R)
• M10: 11,339,668 km (0.065 R)
• M11: 12,942,011 km (0.056 R)
• M12: 13,700,323 km (0.082 R)
• M13: 15,584,657 km (0.117 R)
• M14: 16,515,605 km (0.108 R)
• M15: 17,559,200 km (0.078 R)
• M16: 20,781,987 km (0.07 R)
• M17: 26,523,702 km (0.096 R)
• M18: 27,436,399 km (0.046 R)
• M19: 34,300,249 km (0.065 R)
• M20: 52,073,224 km (0.09 R)
• M21: 52,863,998 km (0.082 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: 195 - 11,224 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit