🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.5

Radius: 14.5

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.72 AU - 1.04 AU

Year: 525 Days

Day: 5.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 120.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,707,151 km

• M1: 180,415 km (0.119 R)
• M2: 718,668 km (0.105 R)
• M3: 1,443,619 km (0.063 R)
• M4: 2,591,185 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.9

Radius: 15

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.81 AU - 1.15 AU

Year: 617 Days

Day: 9.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,707,151 km

• M1: 186,549 km (0.066 R)
• M2: 680,222 km (0.036 R)
• M3: 1,600,099 km (0.059 R)
• M4: 2,510,252 km (0.092 R)
• M5: 3,032,947 km (0.114 R)
• M6: 4,250,524 km (0.095 R)
• M7: 4,787,581 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.2

Radius: 10.4

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.32 AU - 1.64 AU

Year: 1145 Days

Day: 7.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,707,151 km

• M1: 129,402 km (0.116 R)
• M2: 560,992 km (0.08 R)
• M3: 934,987 km (0.079 R)
• M4: 1,262,456 km (0.11 R)
• M5: 1,615,807 km (0.1 R)
• M6: 1,949,859 km (0.12 R)
• M7: 2,549,297 km (0.115 R)
• M8: 3,353,984 km (0.054 R)
• M9: 3,728,278 km (0.062 R)
• M10: 4,130,397 km (0.068 R)
• M11: 5,255,672 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.7

Radius: 14

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.23 AU - 1.93 AU

Year: 1263 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,707,151 km

• M1: 174,880 km (0.063 R)
• M2: 645,515 km (0.098 R)
• M3: 1,179,729 km (0.073 R)
• M4: 1,666,520 km (0.076 R)
• M5: 2,436,351 km (0.117 R)
• M6: 2,944,236 km (0.048 R)
• M7: 3,629,244 km (0.032 R)
• M8: 4,211,180 km (0.116 R)
• M9: 4,743,300 km (0.064 R)
• M10: 5,320,299 km (0.089 R)
• M11: 6,409,072 km (0.077 R)
• M12: 7,692,771 km (0.055 R)
• M13: 9,794,023 km (0.083 R)
• M14: 10,413,807 km (0.112 R)
• M15: 11,125,743 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.4

Radius: 8.3

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.65 AU - 2.09 AU

Year: 1626 Days

Day: 12.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,707,151 km

• M1: 103,522 km (0.079 R)
• M2: 450,589 km (0.062 R)
• M3: 785,538 km (0.092 R)
• M4: 1,054,964 km (0.073 R)
• M5: 1,485,357 km (0.025 R)
• M6: 2,712,359 km (0.118 R)
• M7: 4,331,158 km (0.059 R)
• M8: 4,637,684 km (0.025 R)
• M9: 5,017,064 km (0.081 R)
• M10: 6,650,523 km (0.068 R)
• M11: 8,034,902 km (0.115 R)
• M12: 8,443,753 km (0.082 R)
• M13: 10,505,510 km (0.114 R)
• M14: 10,797,077 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.7

Radius: 6.1

Gravity: 17.65 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.34 AU - 7.72 AU

Year: 13138 Days

Day: 22.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 40,707,151 km

• M1: 78,539 km (0.111 R)
• M2: 307,723 km (0.089 R)
• M3: 755,768 km (0.044 R)
• M4: 981,960 km (0.092 R)
• M5: 1,442,572 km (0.082 R)
• M6: 1,845,589 km (0.09 R)
• M7: 2,185,475 km (0.115 R)
• M8: 2,673,763 km (0.103 R)
• M9: 3,014,098 km (0.086 R)
• M10: 3,486,378 km (0.091 R)
• M11: 4,211,030 km (0.059 R)
• M12: 4,422,263 km (0.056 R)
• M13: 5,065,234 km (0.112 R)
• M14: 8,175,524 km (0.061 R)
• M15: 11,009,057 km (0.097 R)
• M16: 12,122,963 km (0.088 R)
• M17: 12,738,558 km (0.051 R)
• M18: 12,990,630 km (0.093 R)
• M19: 13,766,594 km (0.082 R)
• M20: 15,841,068 km (0.028 R)
• M21: 16,501,992 km (0.078 R)
• M22: 18,594,866 km (0.115 R)
• M23: 20,169,683 km (0.071 R)
• M24: 21,208,789 km (0.111 R)
• M25: 25,523,491 km (0.094 R)
• M26: 26,841,299 km (0.068 R)
• M27: 28,847,855 km (0.092 R)
• M28: 31,179,637 km (0.038 R)
• M29: 31,868,236 km (0.074 R)
• M30: 33,038,391 km (0.096 R)
• M31: 33,634,089 km (0.111 R)
• M32: 34,480,065 km (0.068 R)
• M33: 35,713,051 km (0.117 R)
• M34: 36,214,353 km (0.116 R)
• M35: 36,593,434 km (0.115 R)
• M36: 37,746,535 km (0.111 R)
• M37: 38,923,720 km (0.036 R)
• M38: 39,588,085 km (0.046 R)
• M39: 41,351,095 km (0.096 R)
• M40: 42,461,560 km (0.066 R)
• M41: 47,252,881 km (0.111 R)
• M42: 56,694,751 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.7

Radius: 7.1

Gravity: 14.46 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 8.58 AU - 8.93 AU

Year: 16457 Days

Day: 18.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,707,151 km

• M1: 88,562 km (0.105 R)
• M2: 833,559 km (0.113 R)
• M3: 1,114,803 km (0.075 R)
• M4: 3,623,260 km (0.119 R)
• M5: 4,286,278 km (0.098 R)
• M6: 6,010,244 km (0.115 R)
• M7: 6,254,089 km (0.094 R)
• M8: 7,025,864 km (0.072 R)
• M9: 8,250,323 km (0.081 R)
• M10: 8,705,399 km (0.109 R)
• M11: 9,230,787 km (0.097 R)
• M12: 9,610,915 km (0.099 R)
• M13: 9,832,769 km (0.119 R)
• M14: 10,460,631 km (0.061 R)
• M15: 10,933,809 km (0.063 R)
• M16: 11,545,365 km (0.047 R)
• M17: 12,836,245 km (0.085 R)
• M18: 14,654,907 km (0.03 R)
• M19: 18,281,608 km (0.102 R)
• M20: 18,968,112 km (0.07 R)
• M21: 29,989,885 km (0.092 R)
• M22: 34,314,161 km (0.03 R)
• M23: 35,754,639 km (0.075 R)
• M24: 50,243,642 km (0.117 R)
• M25: 58,859,581 km (0.087 R)
• M26: 63,612,306 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.2

Radius: 3.7

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.44 AU - 11.2 AU

Year: 18091 Days

Day: 17.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,707,151 km

• M1: 46,076 km (0.101 R)
• M2: 484,847 km (0.085 R)
• M3: 736,171 km (0.087 R)
• M4: 1,974,841 km (0.079 R)
• M5: 2,207,466 km (0.075 R)
• M6: 2,848,493 km (0.077 R)
• M7: 5,471,542 km (0.111 R)
• M8: 5,599,897 km (0.11 R)
• M9: 7,072,539 km (0.054 R)
• M10: 9,320,845 km (0.109 R)
• M11: 10,116,706 km (0.056 R)
• M12: 11,058,723 km (0.041 R)
• M13: 13,520,057 km (0.111 R)
• M14: 17,406,610 km (0.097 R)
• M15: 18,681,632 km (0.084 R)
• M16: 28,421,950 km (0.108 R)
• M17: 29,392,541 km (0.072 R)
• M18: 38,668,506 km (0.099 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 13,328 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit