🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.4

Radius: 14.9

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.45 AU - 0.59 AU

Year: 250 Days

Day: 9.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,709,313 km

• M1: 185,352 km (0.044 R)
• M2: 690,544 km (0.119 R)
• M3: 2,036,625 km (0.116 R)
• M4: 3,005,272 km (0.09 R)
• M5: 3,662,605 km (0.097 R)
• M6: 4,226,738 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.2

Radius: 8.5

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.53 AU - 0.65 AU

Year: 302 Days

Day: 14.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,709,313 km

• M1: 105,766 km (0.047 R)
• M2: 557,850 km (0.117 R)
• M3: 1,058,704 km (0.095 R)
• M4: 1,348,625 km (0.109 R)
• M5: 1,747,602 km (0.117 R)
• M6: 2,165,280 km (0.09 R)
• M7: 2,549,447 km (0.086 R)
• M8: 2,951,716 km (0.107 R)
• M9: 3,268,713 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692

Radius: 13.1

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.61 AU - 0.97 AU

Year: 468 Days

Day: 11.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,709,313 km

• M1: 162,912 km (0.119 R)
• M2: 667,207 km (0.113 R)
• M3: 1,260,512 km (0.108 R)
• M4: 1,780,663 km (0.117 R)
• M5: 2,322,507 km (0.108 R)
• M6: 2,771,450 km (0.107 R)
• M7: 3,361,015 km (0.112 R)
• M8: 3,808,463 km (0.12 R)
• M9: 4,824,531 km (0.098 R)
• M10: 5,529,885 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925

Radius: 10.9

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.22 AU - 1.3 AU

Year: 943 Days

Day: 12.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,709,313 km

• M1: 147,055 km (0.065 R)
• M2: 543,190 km (0.119 R)
• M3: 882,777 km (0.116 R)
• M4: 1,261,260 km (0.119 R)
• M5: 1,833,322 km (0.049 R)
• M6: 2,362,300 km (0.113 R)
• M7: 2,846,548 km (0.062 R)
• M8: 3,381,809 km (0.105 R)
• M9: 3,790,960 km (0.088 R)
• M10: 4,318,741 km (0.043 R)
• M11: 5,380,287 km (0.106 R)
• M12: 6,959,742 km (0.036 R)
• M13: 7,349,145 km (0.106 R)
• M14: 8,252,118 km (0.093 R)
• M15: 8,716,470 km (0.116 R)
• M16: 10,434,003 km (0.064 R)
• M17: 10,945,179 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.5

Radius: 14.4

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.06 AU - 1.5 AU

Year: 966 Days

Day: 15 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,709,313 km

• M1: 182,360 km (0.113 R)
• M2: 669,301 km (0.085 R)
• M3: 1,309,580 km (0.104 R)
• M4: 1,962,874 km (0.118 R)
• M5: 2,487,513 km (0.096 R)
• M6: 2,998,241 km (0.103 R)
• M7: 3,905,851 km (0.111 R)
• M8: 5,104,579 km (0.081 R)
• M9: 6,697,497 km (0.118 R)
• M10: 7,247,119 km (0.097 R)
• M11: 8,936,977 km (0.1 R)
• M12: 9,664,022 km (0.109 R)
• M13: 10,180,733 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.1

Radius: 9

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.59 AU - 1.61 AU

Year: 1350 Days

Day: 8.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,709,313 km

• M1: 111,899 km (0.061 R)
• M2: 422,764 km (0.032 R)
• M3: 1,593,816 km (0.103 R)
• M4: 2,309,941 km (0.12 R)
• M5: 2,696,950 km (0.106 R)
• M6: 3,535,297 km (0.112 R)
• M7: 3,964,493 km (0.104 R)
• M8: 4,397,130 km (0.025 R)
• M9: 4,844,428 km (0.049 R)
• M10: 6,331,281 km (0.098 R)
• M11: 7,200,894 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.9

Radius: 13.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.14 AU - 2.44 AU

Year: 2311 Days

Day: 12.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,709,313 km

• M1: 169,195 km (0.061 R)
• M2: 1,353,562 km (0.115 R)
• M3: 1,844,841 km (0.059 R)
• M4: 2,688,573 km (0.094 R)
• M5: 3,687,588 km (0.09 R)
• M6: 4,361,975 km (0.046 R)
• M7: 5,983,466 km (0.101 R)
• M8: 7,027,210 km (0.056 R)
• M9: 8,593,051 km (0.101 R)
• M10: 9,273,871 km (0.119 R)
• M11: 10,380,596 km (0.081 R)
• M12: 10,817,721 km (0.08 R)
• M13: 11,381,256 km (0.036 R)
• M14: 11,846,207 km (0.095 R)
• M15: 12,939,019 km (0.115 R)
• M16: 14,230,946 km (0.102 R)
• M17: 15,988,572 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.6

Radius: 6.7

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.74 AU - 9.56 AU

Year: 15516 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,709,313 km

• M1: 85,720 km (0.094 R)
• M2: 566,527 km (0.036 R)
• M3: 1,232,686 km (0.065 R)
• M4: 1,774,829 km (0.101 R)
• M5: 2,745,121 km (0.108 R)
• M6: 3,228,023 km (0.119 R)
• M7: 4,056,496 km (0.079 R)
• M8: 4,506,037 km (0.092 R)
• M9: 7,145,991 km (0.092 R)
• M10: 9,565,737 km (0.11 R)
• M11: 10,618,457 km (0.108 R)
• M12: 15,339,466 km (0.099 R)
• M13: 15,673,967 km (0.056 R)
• M14: 19,447,723 km (0.117 R)
• M15: 23,519,628 km (0.114 R)
• M16: 29,854,499 km (0.094 R)
• M17: 33,972,928 km (0.11 R)
• M18: 44,794,689 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.9

Radius: 3.2

Gravity: 47.26 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.8 AU - 11.06 AU

Year: 20867 Days

Day: 22 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,709,313 km

• M1: 40,691 km (0.101 R)
• M2: 219,011 km (0.066 R)
• M3: 432,787 km (0.061 R)
• M4: 685,009 km (0.105 R)
• M5: 1,076,955 km (0.086 R)
• M6: 1,380,788 km (0.075 R)
• M7: 1,669,662 km (0.08 R)
• M8: 6,179,140 km (0.096 R)
• M9: 6,346,241 km (0.085 R)
• M10: 8,086,662 km (0.074 R)
• M11: 9,390,707 km (0.104 R)
• M12: 18,217,729 km (0.094 R)
• M13: 19,084,649 km (0.089 R)
• M14: 30,622,983 km (0.113 R)
• M15: 30,865,182 km (0.036 R)
• M16: 37,754,912 km (0.105 R)
• M17: 38,172,889 km (0.065 R)
• M18: 39,445,518 km (0.1 R)
• M19: 42,825,532 km (0.083 R)
• M20: 49,653,029 km (0.058 R)
• M21: 51,168,156 km (0.084 R)
• M22: 53,061,617 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 201 - 19,665 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit