🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.46 AU - 0.66 AU

Year: 271 Days

Day: 22.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 12.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.5

Radius: 10

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.79 AU - 0.99 AU

Year: 542 Days

Day: 12.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,222,582 km

• M1: 125,812 km (0.055 R)
• M2: 483,201 km (0.099 R)
• M3: 844,779 km (0.082 R)
• M4: 1,194,539 km (0.08 R)
• M5: 1,627,326 km (0.098 R)
• M6: 1,975,440 km (0.081 R)
• M7: 2,295,579 km (0.113 R)
• M8: 2,715,052 km (0.087 R)
• M9: 3,295,791 km (0.116 R)
• M10: 3,682,651 km (0.101 R)
• M11: 4,304,978 km (0.089 R)
• M12: 4,704,853 km (0.118 R)
• M13: 5,129,412 km (0.087 R)
• M14: 5,633,108 km (0.084 R)
• M15: 6,303,905 km (0.089 R)
• M16: 7,027,061 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.5

Radius: 10.9

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.01 AU - 1.31 AU

Year: 807 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,222,582 km

• M1: 135,536 km (0.047 R)
• M2: 491,728 km (0.108 R)
• M3: 912,397 km (0.116 R)
• M4: 1,388,567 km (0.092 R)
• M5: 1,826,141 km (0.085 R)
• M6: 3,598,427 km (0.118 R)
• M7: 4,082,975 km (0.099 R)
• M8: 5,027,536 km (0.106 R)
• M9: 5,505,650 km (0.092 R)
• M10: 6,072,477 km (0.033 R)
• M11: 6,533,089 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.8

Radius: 14.2

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.12 AU - 1.76 AU

Year: 1116 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,222,582 km

• M1: 176,675 km (0.094 R)
• M2: 709,393 km (0.105 R)
• M3: 1,253,481 km (0.115 R)
• M4: 1,983,967 km (0.05 R)
• M5: 3,925,149 km (0.06 R)
• M6: 4,870,757 km (0.041 R)
• M7: 5,661,083 km (0.116 R)
• M8: 6,448,267 km (0.097 R)
• M9: 8,318,988 km (0.097 R)
• M10: 8,899,129 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.3

Radius: 8.3

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 4.92 AU - 5.06 AU

Year: 7197 Days

Day: 10.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,222,582 km

• M1: 103,223 km (0.11 R)
• M2: 435,180 km (0.102 R)
• M3: 1,058,106 km (0.086 R)
• M4: 1,451,548 km (0.061 R)
• M5: 1,818,512 km (0.102 R)
• M6: 2,096,913 km (0.074 R)
• M7: 2,404,038 km (0.079 R)
• M8: 5,471,542 km (0.104 R)
• M9: 6,179,888 km (0.048 R)
• M10: 7,320,572 km (0.116 R)
• M11: 9,025,539 km (0.064 R)
• M12: 9,469,545 km (0.12 R)
• M13: 10,013,034 km (0.103 R)
• M14: 10,844,499 km (0.08 R)
• M15: 11,208,022 km (0.092 R)
• M16: 11,816,137 km (0.048 R)
• M17: 14,145,675 km (0.116 R)
• M18: 21,702,612 km (0.101 R)
• M19: 22,135,099 km (0.106 R)
• M20: 28,895,427 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.3

Radius: 8.4

Gravity: 12.25 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.91 AU - 6.55 AU

Year: 8856 Days

Day: 5 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 89,222,582 km

• M1: 106,065 km (0.07 R)
• M2: 552,166 km (0.115 R)
• M3: 923,019 km (0.091 R)
• M4: 1,353,113 km (0.061 R)
• M5: 1,912,459 km (0.119 R)
• M6: 2,460,436 km (0.081 R)
• M7: 3,270,658 km (0.067 R)
• M8: 3,635,677 km (0.08 R)
• M9: 4,332,803 km (0.12 R)
• M10: 4,713,530 km (0.086 R)
• M11: 6,426,874 km (0.092 R)
• M12: 6,767,508 km (0.106 R)
• M13: 7,120,260 km (0.045 R)
• M14: 7,403,000 km (0.109 R)
• M15: 8,034,154 km (0.045 R)
• M16: 8,340,829 km (0.038 R)
• M17: 9,355,851 km (0.03 R)
• M18: 10,194,945 km (0.118 R)
• M19: 13,932,050 km (0.115 R)
• M20: 23,425,680 km (0.047 R)
• M21: 28,861,319 km (0.12 R)
• M22: 29,271,666 km (0.067 R)
• M23: 30,845,136 km (0.102 R)
• M24: 34,734,382 km (0.092 R)
• M25: 36,021,222 km (0.11 R)
• M26: 36,496,794 km (0.111 R)
• M27: 40,454,705 km (0.047 R)
• M28: 41,617,230 km (0.115 R)
• M29: 42,272,768 km (0.108 R)
• M30: 43,068,329 km (0.12 R)
• M31: 44,144,686 km (0.09 R)
• M32: 47,055,113 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 120.5

Radius: 5.7

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 5.92 AU - 8.02 AU

Year: 11881 Days

Day: 20.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,222,582 km

• M1: 79,137 km (0.117 R)
• M2: 662,569 km (0.113 R)
• M3: 882,478 km (0.113 R)
• M4: 1,786,199 km (0.113 R)
• M5: 2,631,277 km (0.106 R)
• M6: 4,321,583 km (0.1 R)
• M7: 5,044,440 km (0.073 R)
• M8: 8,751,625 km (0.114 R)
• M9: 19,389,829 km (0.117 R)
• M10: 20,207,082 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 910.2

Radius: 3.2

Gravity: 88.89 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.37 AU - 11.67 AU

Year: 22031 Days

Day: 24.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 89,222,582 km

• M1: 40,092 km (0.115 R)
• M2: 411,993 km (0.118 R)
• M3: 622,926 km (0.05 R)
• M4: 1,272,629 km (0.051 R)
• M5: 1,589,328 km (0.113 R)
• M6: 1,854,415 km (0.058 R)
• M7: 2,104,244 km (0.12 R)
• M8: 2,989,564 km (0.102 R)
• M9: 3,186,883 km (0.08 R)
• M10: 3,392,730 km (0.086 R)
• M11: 5,129,113 km (0.036 R)
• M12: 5,452,992 km (0.065 R)
• M13: 6,647,232 km (0.095 R)
• M14: 7,180,099 km (0.1 R)
• M15: 7,380,710 km (0.119 R)
• M16: 7,951,725 km (0.109 R)
• M17: 8,385,260 km (0.054 R)
• M18: 9,964,415 km (0.069 R)
• M19: 11,389,484 km (0.073 R)
• M20: 14,716,242 km (0.115 R)
• M21: 16,039,734 km (0.091 R)
• M22: 17,261,051 km (0.102 R)
• M23: 18,356,108 km (0.095 R)
• M24: 20,987,534 km (0.065 R)
• M25: 21,397,582 km (0.097 R)
• M26: 21,604,625 km (0.115 R)
• M27: 23,309,143 km (0.115 R)
• M28: 27,224,568 km (0.068 R)
• M29: 30,368,069 km (0.073 R)
• M30: 34,166,209 km (0.083 R)
• M31: 41,072,694 km (0.1 R)
• M32: 46,562,936 km (0.07 R)
• M33: 47,787,095 km (0.082 R)
• M34: 51,402,876 km (0.084 R)
• M35: 54,616,088 km (0.06 R)
• M36: 55,196,678 km (0.069 R)
• M37: 59,785,293 km (0.068 R)
• M38: 70,395,073 km (0.049 R)
• M39: 71,312,856 km (0.086 R)
• M40: 79,189,782 km (0.083 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 13,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit