🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.6

Radius: 13.2

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.65 AU - 0.73 AU

Year: 376 Days

Day: 9.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,530,933 km

• M1: 164,109 km (0.102 R)
• M2: 577,897 km (0.113 R)
• M3: 1,064,838 km (0.113 R)
• M4: 1,525,150 km (0.093 R)
• M5: 2,063,703 km (0.11 R)
• M6: 2,708,918 km (0.069 R)
• M7: 3,544,123 km (0.094 R)
• M8: 4,048,567 km (0.074 R)
• M9: 4,657,281 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.6

Radius: 12.5

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.69 AU - 0.81 AU

Year: 426 Days

Day: 12.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,530,933 km

• M1: 157,527 km (0.045 R)
• M2: 641,924 km (0.048 R)
• M3: 1,215,931 km (0.067 R)
• M4: 1,610,122 km (0.06 R)
• M5: 2,541,967 km (0.114 R)
• M6: 3,329,749 km (0.064 R)
• M7: 3,888,797 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.3

Radius: 13.7

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.88 AU - 0.96 AU

Year: 579 Days

Day: 13 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,530,933 km

• M1: 170,691 km (0.085 R)
• M2: 1,180,028 km (0.056 R)
• M3: 2,130,573 km (0.056 R)
• M4: 2,716,997 km (0.036 R)
• M5: 3,258,242 km (0.066 R)
• M6: 3,705,090 km (0.069 R)
• M7: 4,413,287 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.8

Radius: 12.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.87 AU - 2.35 AU

Year: 2011 Days

Day: 11 Hours

Environment

Temp: -187 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,530,933 km

• M1: 160,818 km (0.079 R)
• M2: 621,579 km (0.044 R)
• M3: 1,035,367 km (0.07 R)
• M4: 1,510,938 km (0.099 R)
• M5: 1,994,289 km (0.06 R)
• M6: 2,445,327 km (0.1 R)
• M7: 2,964,880 km (0.114 R)
• M8: 4,354,345 km (0.112 R)
• M9: 4,844,428 km (0.073 R)
• M10: 5,287,537 km (0.071 R)
• M11: 6,907,083 km (0.072 R)
• M12: 8,036,697 km (0.109 R)
• M13: 8,865,619 km (0.113 R)
• M14: 9,408,360 km (0.119 R)
• M15: 10,296,522 km (0.074 R)
• M16: 11,449,473 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.6

Radius: 8.6

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.95 AU - 4.23 AU

Year: 5426 Days

Day: 5.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 87,530,933 km

• M1: 120,576 km (0.093 R)
• M2: 593,156 km (0.113 R)
• M3: 1,904,381 km (0.097 R)
• M4: 2,906,687 km (0.093 R)
• M5: 5,257,767 km (0.104 R)
• M6: 6,542,513 km (0.085 R)
• M7: 7,917,318 km (0.097 R)
• M8: 10,390,619 km (0.116 R)
• M9: 10,869,931 km (0.112 R)
• M10: 11,409,381 km (0.078 R)
• M11: 12,590,755 km (0.09 R)
• M12: 12,935,728 km (0.088 R)
• M13: 13,236,420 km (0.118 R)
• M14: 15,029,200 km (0.104 R)
• M15: 15,926,638 km (0.04 R)
• M16: 16,918,622 km (0.026 R)
• M17: 17,338,992 km (0.061 R)
• M18: 18,200,376 km (0.053 R)
• M19: 25,829,419 km (0.095 R)
• M20: 27,197,042 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.1

Radius: 11

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.25 AU - 4.81 AU

Year: 6325 Days

Day: 5.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,530,933 km

• M1: 136,882 km (0.118 R)
• M2: 1,563,597 km (0.095 R)
• M3: 2,978,344 km (0.116 R)
• M4: 3,889,993 km (0.117 R)
• M5: 4,447,545 km (0.09 R)
• M6: 5,327,928 km (0.082 R)
• M7: 13,670,702 km (0.103 R)
• M8: 15,071,537 km (0.096 R)
• M9: 17,968,200 km (0.098 R)
• M10: 19,780,130 km (0.056 R)
• M11: 24,916,124 km (0.106 R)
• M12: 27,413,810 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954.9

Radius: 3.4

Gravity: 82.6 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.94 AU - 10.16 AU

Year: 20901 Days

Day: 17.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 180 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 87,530,933 km

• M1: 42,486 km (0.049 R)
• M2: 535,710 km (0.117 R)
• M3: 651,948 km (0.088 R)
• M4: 763,398 km (0.079 R)
• M5: 1,544,748 km (0.12 R)
• M6: 3,101,463 km (0.093 R)
• M7: 4,730,135 km (0.1 R)
• M8: 7,856,282 km (0.047 R)
• M9: 8,337,837 km (0.082 R)
• M10: 9,537,612 km (0.108 R)
• M11: 11,242,878 km (0.106 R)
• M12: 13,590,219 km (0.052 R)
• M13: 22,976,887 km (0.091 R)
• M14: 25,080,831 km (0.052 R)
• M15: 44,668,727 km (0.102 R)
• M16: 72,477,326 km (0.085 R)
• M17: 74,109,289 km (0.045 R)
• M18: 77,205,068 km (0.11 R)
• M19: 84,418,976 km (0.075 R)
• M20: 87,007,019 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 17,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit