🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.1

Radius: 11

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.55 AU - 0.75 AU

Year: 355 Days

Day: 9.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,189,108 km

• M1: 136,882 km (0.119 R)
• M2: 635,641 km (0.051 R)
• M3: 999,912 km (0.106 R)
• M4: 1,452,147 km (0.065 R)
• M5: 1,842,447 km (0.087 R)
• M6: 2,800,771 km (0.062 R)
• M7: 3,203,938 km (0.109 R)
• M8: 3,717,208 km (0.116 R)
• M9: 4,219,109 km (0.086 R)
• M10: 4,610,906 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 8.2

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.58 AU - 0.76 AU

Year: 372 Days

Day: 14.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,189,108 km

• M1: 103,073 km (0.039 R)
• M2: 391,647 km (0.115 R)
• M3: 721,959 km (0.118 R)
• M4: 1,069,924 km (0.078 R)
• M5: 1,480,121 km (0.084 R)
• M6: 2,286,454 km (0.025 R)
• M7: 3,347,552 km (0.116 R)
• M8: 3,777,197 km (0.079 R)
• M9: 4,107,808 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.7

Radius: 10.6

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.26 AU - 1.58 AU

Year: 1148 Days

Day: 6.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,189,108 km

• M1: 131,796 km (0.103 R)
• M2: 463,454 km (0.082 R)
• M3: 794,215 km (0.12 R)
• M4: 1,247,497 km (0.044 R)
• M5: 1,686,118 km (0.098 R)
• M6: 2,147,777 km (0.111 R)
• M7: 2,576,674 km (0.108 R)
• M8: 2,949,472 km (0.117 R)
• M9: 3,327,954 km (0.104 R)
• M10: 4,112,894 km (0.078 R)
• M11: 4,493,322 km (0.085 R)
• M12: 6,140,245 km (0.071 R)
• M13: 6,910,524 km (0.038 R)
• M14: 8,045,373 km (0.034 R)
• M15: 11,021,623 km (0.103 R)
• M16: 11,474,306 km (0.109 R)
• M17: 11,975,609 km (0.071 R)
• M18: 12,793,012 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.9

Radius: 8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.33 AU - 1.65 AU

Year: 1234 Days

Day: 11.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,189,108 km

• M1: 99,782 km (0.05 R)
• M2: 356,342 km (0.113 R)
• M3: 644,767 km (0.041 R)
• M4: 906,563 km (0.098 R)
• M5: 1,201,420 km (0.04 R)
• M6: 1,460,674 km (0.114 R)
• M7: 1,749,248 km (0.081 R)
• M8: 2,134,163 km (0.065 R)
• M9: 2,400,148 km (0.118 R)
• M10: 3,388,691 km (0.061 R)
• M11: 3,796,495 km (0.088 R)
• M12: 4,477,464 km (0.093 R)
• M13: 4,899,181 km (0.103 R)
• M14: 5,347,226 km (0.093 R)
• M15: 6,120,647 km (0.044 R)
• M16: 6,450,211 km (0.107 R)
• M17: 6,748,061 km (0.12 R)
• M18: 7,417,661 km (0.079 R)
• M19: 7,744,981 km (0.104 R)
• M20: 8,008,872 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.9

Radius: 11.6

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.82 AU - 2.5 AU

Year: 2153 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,189,108 km

• M1: 144,362 km (0.094 R)
• M2: 523,892 km (0.109 R)
• M3: 1,106,875 km (0.114 R)
• M4: 1,470,846 km (0.118 R)
• M5: 2,136,557 km (0.073 R)
• M6: 2,560,368 km (0.109 R)
• M7: 3,580,027 km (0.093 R)
• M8: 4,831,263 km (0.11 R)
• M9: 5,498,769 km (0.085 R)
• M10: 6,101,200 km (0.115 R)
• M11: 7,381,458 km (0.093 R)
• M12: 8,673,535 km (0.092 R)
• M13: 9,832,021 km (0.058 R)
• M14: 10,867,986 km (0.101 R)
• M15: 12,213,320 km (0.076 R)
• M16: 12,617,384 km (0.046 R)
• M17: 13,030,423 km (0.085 R)
• M18: 13,409,804 km (0.115 R)
• M19: 14,955,898 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.2

Radius: 10.5

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.38 AU - 2.44 AU

Year: 2538 Days

Day: 6.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,189,108 km

• M1: 131,197 km (0.099 R)
• M2: 493,823 km (0.109 R)
• M3: 1,260,362 km (0.032 R)
• M4: 1,665,623 km (0.097 R)
• M5: 2,623,199 km (0.065 R)
• M6: 2,969,817 km (0.041 R)
• M7: 3,437,310 km (0.084 R)
• M8: 4,054,551 km (0.067 R)
• M9: 4,390,099 km (0.031 R)
• M10: 5,022,449 km (0.044 R)
• M11: 6,274,284 km (0.031 R)
• M12: 6,958,395 km (0.091 R)
• M13: 7,565,912 km (0.119 R)
• M14: 8,542,936 km (0.067 R)
• M15: 9,239,763 km (0.108 R)
• M16: 11,517,390 km (0.113 R)
• M17: 15,574,485 km (0.101 R)
• M18: 16,402,659 km (0.086 R)
• M19: 17,151,097 km (0.047 R)
• M20: 17,699,373 km (0.081 R)
• M21: 19,238,735 km (0.119 R)
• M22: 20,191,973 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 10.7

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.7 AU - 2.82 AU

Year: 3110 Days

Day: 9.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,189,108 km

• M1: 137,181 km (0.076 R)
• M2: 574,905 km (0.062 R)
• M3: 1,000,062 km (0.085 R)
• M4: 1,418,337 km (0.083 R)
• M5: 1,752,988 km (0.103 R)
• M6: 2,327,294 km (0.09 R)
• M7: 2,683,786 km (0.099 R)
• M8: 3,259,588 km (0.097 R)
• M9: 4,176,025 km (0.052 R)
• M10: 4,517,257 km (0.107 R)
• M11: 5,334,211 km (0.092 R)
• M12: 5,764,455 km (0.12 R)
• M13: 6,513,192 km (0.115 R)
• M14: 7,423,346 km (0.068 R)
• M15: 9,808,684 km (0.105 R)
• M16: 10,917,653 km (0.097 R)
• M17: 11,305,410 km (0.073 R)
• M18: 11,836,632 km (0.049 R)
• M19: 16,647,999 km (0.072 R)
• M20: 18,162,677 km (0.075 R)
• M21: 22,903,883 km (0.09 R)
• M22: 24,334,188 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.8

Radius: 5.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.74 AU - 6.38 AU

Year: 10118 Days

Day: 16.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,189,108 km

• M1: 73,752 km (0.115 R)
• M2: 266,135 km (0.083 R)
• M3: 507,735 km (0.047 R)
• M4: 798,254 km (0.038 R)
• M5: 2,265,660 km (0.113 R)
• M6: 8,153,533 km (0.064 R)
• M7: 12,995,417 km (0.095 R)
• M8: 13,504,200 km (0.047 R)
• M9: 13,978,126 km (0.071 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: 481 - 13,346 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit