🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280

Radius: 9.6

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.75 AU - 1.17 AU

Year: 617 Days

Day: 9.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 165.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,332,306 km

• M1: 119,977 km (0.115 R)
• M2: 914,941 km (0.107 R)
• M3: 1,235,678 km (0.092 R)
• M4: 1,836,015 km (0.054 R)
• M5: 2,139,698 km (0.099 R)
• M6: 2,543,313 km (0.116 R)
• M7: 3,874,136 km (0.094 R)
• M8: 4,706,349 km (0.112 R)
• M9: 5,019,009 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.2

Radius: 13

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.84 AU - 1.32 AU

Year: 736 Days

Day: 13 Hours

Environment

Temp: -155 °C

Axial Tilt: 77.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,332,306 km

• M1: 161,715 km (0.093 R)
• M2: 603,627 km (0.12 R)
• M3: 1,310,029 km (0.077 R)
• M4: 1,872,517 km (0.07 R)
• M5: 2,556,328 km (0.103 R)
• M6: 3,254,352 km (0.068 R)
• M7: 3,685,643 km (0.062 R)
• M8: 4,261,894 km (0.108 R)
• M9: 4,678,973 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 11.1

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.05 AU - 1.13 AU

Year: 747 Days

Day: 10 Hours

Environment

Temp: -167 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,332,306 km

• M1: 139,575 km (0.066 R)
• M2: 624,422 km (0.098 R)
• M3: 1,084,136 km (0.077 R)
• M4: 1,503,159 km (0.086 R)
• M5: 1,962,574 km (0.082 R)
• M6: 3,052,395 km (0.111 R)
• M7: 5,934,099 km (0.116 R)
• M8: 6,305,101 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.9

Radius: 14.5

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.83 AU - 1.91 AU

Year: 1678 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,332,306 km

• M1: 180,565 km (0.084 R)
• M2: 742,753 km (0.109 R)
• M3: 1,243,308 km (0.084 R)
• M4: 1,733,690 km (0.065 R)
• M5: 2,355,568 km (0.117 R)
• M6: 3,611,741 km (0.102 R)
• M7: 4,803,588 km (0.109 R)
• M8: 5,434,143 km (0.111 R)
• M9: 6,119,750 km (0.109 R)
• M10: 7,381,009 km (0.044 R)
• M11: 9,226,449 km (0.108 R)
• M12: 9,724,011 km (0.04 R)
• M13: 10,274,382 km (0.116 R)
• M14: 14,865,391 km (0.061 R)
• M15: 15,504,323 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.5

Radius: 13.4

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.64 AU - 2.12 AU

Year: 1691 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,332,306 km

• M1: 166,802 km (0.064 R)
• M2: 617,390 km (0.066 R)
• M3: 1,094,308 km (0.086 R)
• M4: 1,703,621 km (0.082 R)
• M5: 2,674,361 km (0.113 R)
• M6: 3,702,547 km (0.091 R)
• M7: 7,318,777 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 15

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.04 AU - 3 AU

Year: 2624 Days

Day: 7.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,332,306 km

• M1: 186,549 km (0.103 R)
• M2: 734,675 km (0.118 R)
• M3: 3,557,737 km (0.043 R)
• M4: 4,206,692 km (0.107 R)
• M5: 4,887,662 km (0.113 R)
• M6: 8,785,135 km (0.092 R)
• M7: 9,753,033 km (0.075 R)
• M8: 13,360,137 km (0.074 R)
• M9: 14,542,858 km (0.064 R)
• M10: 20,650,490 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.2

Radius: 4.1

Gravity: 46.12 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 6.26 AU - 8.76 AU

Year: 13501 Days

Day: 18.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,332,306 km

• M1: 52,808 km (0.092 R)
• M2: 197,619 km (0.088 R)
• M3: 462,557 km (0.079 R)
• M4: 682,615 km (0.049 R)
• M5: 969,693 km (0.085 R)
• M6: 1,389,315 km (0.07 R)
• M7: 2,576,375 km (0.079 R)
• M8: 3,064,662 km (0.12 R)
• M9: 4,600,284 km (0.033 R)
• M10: 6,180,786 km (0.099 R)
• M11: 6,963,332 km (0.037 R)
• M12: 8,923,513 km (0.066 R)
• M13: 10,473,497 km (0.106 R)
• M14: 15,368,189 km (0.057 R)
• M15: 15,735,153 km (0.101 R)
• M16: 23,380,202 km (0.1 R)
• M17: 23,767,960 km (0.115 R)
• M18: 24,456,858 km (0.036 R)
• M19: 26,184,863 km (0.038 R)
• M20: 45,540,733 km (0.104 R)
• M21: 50,366,162 km (0.08 R)
• M22: 53,653,725 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.7

Radius: 5.5

Gravity: 32.59 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.15 AU - 10.33 AU

Year: 18425 Days

Day: 24.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 81,332,306 km

• M1: 68,516 km (0.081 R)
• M2: 481,855 km (0.105 R)
• M3: 699,220 km (0.067 R)
• M4: 1,263,504 km (0.104 R)
• M5: 2,681,691 km (0.079 R)
• M6: 3,522,880 km (0.067 R)
• M7: 3,859,775 km (0.092 R)
• M8: 4,527,580 km (0.043 R)
• M9: 5,347,675 km (0.115 R)
• M10: 6,003,512 km (0.117 R)
• M11: 6,439,740 km (0.112 R)
• M12: 6,757,485 km (0.079 R)
• M13: 7,133,275 km (0.076 R)
• M14: 7,572,794 km (0.078 R)
• M15: 13,295,810 km (0.083 R)
• M16: 14,416,298 km (0.046 R)
• M17: 15,679,203 km (0.046 R)
• M18: 19,435,905 km (0.109 R)
• M19: 22,282,603 km (0.096 R)
• M20: 23,644,542 km (0.091 R)
• M21: 24,291,403 km (0.077 R)
• M22: 25,283,686 km (0.11 R)
• M23: 28,543,423 km (0.116 R)
• M24: 31,036,322 km (0.043 R)
• M25: 33,805,977 km (0.07 R)
• M26: 34,351,561 km (0.079 R)
• M27: 38,632,304 km (0.094 R)
• M28: 40,746,421 km (0.105 R)
• M29: 41,209,127 km (0.098 R)
• M30: 41,988,382 km (0.113 R)
• M31: 47,890,617 km (0.099 R)
• M32: 49,273,350 km (0.108 R)
• M33: 51,217,823 km (0.1 R)
• M34: 54,322,428 km (0.101 R)
• M35: 55,070,716 km (0.063 R)
• M36: 61,508,661 km (0.036 R)
• M37: 63,347,667 km (0.104 R)
• M38: 63,968,648 km (0.053 R)
• M39: 66,068,254 km (0.03 R)
• M40: 73,094,716 km (0.114 R)
• M41: 73,549,793 km (0.101 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 12,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit