🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147

Radius: 13.6

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.78 AU - 1.26 AU

Year: 665 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,004,884 km

• M1: 169,195 km (0.116 R)
• M2: 785,838 km (0.065 R)
• M3: 1,256,921 km (0.109 R)
• M4: 1,878,500 km (0.119 R)
• M5: 2,468,514 km (0.066 R)
• M6: 3,027,861 km (0.076 R)
• M7: 3,965,690 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.1

Radius: 13

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.11 AU - 1.75 AU

Year: 1104 Days

Day: 9.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,004,884 km

• M1: 161,715 km (0.087 R)
• M2: 632,051 km (0.104 R)
• M3: 1,638,246 km (0.103 R)
• M4: 2,104,992 km (0.119 R)
• M5: 3,158,759 km (0.093 R)
• M6: 3,580,027 km (0.088 R)
• M7: 4,240,501 km (0.104 R)
• M8: 5,555,616 km (0.09 R)
• M9: 6,020,716 km (0.1 R)
• M10: 8,282,486 km (0.044 R)
• M11: 8,722,453 km (0.078 R)
• M12: 9,890,962 km (0.111 R)
• M13: 10,449,710 km (0.049 R)
• M14: 11,062,314 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439

Radius: 11.1

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.5 AU - 2.12 AU

Year: 1572 Days

Day: 5.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,004,884 km

• M1: 138,079 km (0.029 R)
• M2: 542,741 km (0.096 R)
• M3: 1,071,121 km (0.096 R)
• M4: 1,616,704 km (0.114 R)
• M5: 2,096,465 km (0.05 R)
• M6: 2,448,020 km (0.057 R)
• M7: 2,852,532 km (0.067 R)
• M8: 3,421,303 km (0.12 R)
• M9: 4,617,039 km (0.1 R)
• M10: 5,321,047 km (0.105 R)
• M11: 6,300,015 km (0.096 R)
• M12: 7,191,618 km (0.115 R)
• M13: 7,681,103 km (0.12 R)
• M14: 9,017,610 km (0.101 R)
• M15: 9,556,910 km (0.104 R)
• M16: 10,503,267 km (0.104 R)
• M17: 11,134,420 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.1

Radius: 12.5

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.3 AU - 3.28 AU

Year: 3009 Days

Day: 7.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,004,884 km

• M1: 155,432 km (0.091 R)
• M2: 654,640 km (0.096 R)
• M3: 1,066,782 km (0.054 R)
• M4: 2,511,299 km (0.086 R)
• M5: 3,258,391 km (0.081 R)
• M6: 4,278,798 km (0.08 R)
• M7: 7,099,017 km (0.033 R)
• M8: 9,244,251 km (0.051 R)
• M9: 9,812,872 km (0.111 R)
• M10: 13,680,875 km (0.115 R)
• M11: 16,086,558 km (0.098 R)
• M12: 16,743,442 km (0.052 R)
• M13: 17,191,189 km (0.088 R)
• M14: 18,523,358 km (0.086 R)
• M15: 19,123,694 km (0.067 R)
• M16: 20,048,209 km (0.113 R)
• M17: 22,388,817 km (0.038 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.6

Radius: 7.7

Gravity: 12.19 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 5.79 AU - 6.51 AU

Year: 9848 Days

Day: 16.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 149.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,004,884 km

• M1: 95,743 km (0.119 R)
• M2: 416,032 km (0.115 R)
• M3: 1,476,830 km (0.1 R)
• M4: 2,215,993 km (0.088 R)
• M5: 3,043,868 km (0.088 R)
• M6: 3,417,863 km (0.052 R)
• M7: 4,229,730 km (0.074 R)
• M8: 7,394,324 km (0.039 R)
• M9: 7,984,786 km (0.11 R)
• M10: 8,515,410 km (0.1 R)
• M11: 8,835,699 km (0.07 R)
• M12: 10,045,796 km (0.1 R)
• M13: 13,029,975 km (0.041 R)
• M14: 16,347,008 km (0.116 R)
• M15: 20,107,151 km (0.102 R)
• M16: 22,359,496 km (0.113 R)
• M17: 25,902,123 km (0.108 R)
• M18: 30,328,724 km (0.105 R)
• M19: 31,836,521 km (0.09 R)
• M20: 32,165,936 km (0.108 R)
• M21: 35,823,454 km (0.115 R)
• M22: 40,515,591 km (0.097 R)
• M23: 41,292,004 km (0.112 R)
• M24: 44,087,839 km (0.1 R)
• M25: 47,864,587 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.5

Radius: 3.9

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 6.44 AU - 6.78 AU

Year: 10973 Days

Day: 18.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,004,884 km

• M1: 73,004 km (0.096 R)
• M2: 204,351 km (0.073 R)
• M3: 411,095 km (0.112 R)
• M4: 1,076,057 km (0.096 R)
• M5: 2,058,616 km (0.057 R)
• M6: 2,440,540 km (0.116 R)
• M7: 3,082,614 km (0.091 R)
• M8: 4,714,726 km (0.08 R)
• M9: 8,367,607 km (0.055 R)
• M10: 9,473,884 km (0.069 R)
• M11: 12,056,691 km (0.12 R)
• M12: 13,784,397 km (0.058 R)
• M13: 14,300,060 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.7

Radius: 5.4

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.73 AU - 9.71 AU

Year: 16626 Days

Day: 18 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,004,884 km

• M1: 111,002 km (0.03 R)
• M2: 540,048 km (0.093 R)
• M3: 884,273 km (0.105 R)
• M4: 1,391,260 km (0.076 R)
• M5: 1,935,647 km (0.104 R)
• M6: 2,145,682 km (0.117 R)
• M7: 2,591,035 km (0.106 R)
• M8: 3,534,998 km (0.101 R)
• M9: 4,596,843 km (0.109 R)
• M10: 5,036,960 km (0.068 R)
• M11: 6,721,283 km (0.113 R)
• M12: 8,985,895 km (0.06 R)
• M13: 9,572,768 km (0.12 R)
• M14: 10,080,952 km (0.058 R)
• M15: 16,192,623 km (0.115 R)
• M16: 20,506,727 km (0.083 R)
• M17: 22,041,301 km (0.104 R)
• M18: 24,955,468 km (0.108 R)
• M19: 35,940,739 km (0.093 R)
• M20: 39,181,328 km (0.08 R)
• M21: 44,259,727 km (0.06 R)
• M22: 48,418,099 km (0.082 R)
• M23: 50,212,376 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.5

Radius: 7.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7.61 AU - 11.19 AU

Year: 18608 Days

Day: 20.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,004,884 km

• M1: 94,845 km (0.09 R)
• M2: 457,470 km (0.112 R)
• M3: 1,995,935 km (0.104 R)
• M4: 2,688,573 km (0.115 R)
• M5: 3,185,088 km (0.036 R)
• M6: 3,741,144 km (0.067 R)
• M7: 4,070,857 km (0.083 R)
• M8: 4,570,963 km (0.092 R)
• M9: 7,620,366 km (0.084 R)
• M10: 11,352,534 km (0.066 R)
• M11: 11,927,887 km (0.089 R)
• M12: 12,282,284 km (0.119 R)
• M13: 14,692,156 km (0.113 R)
• M14: 15,795,142 km (0.054 R)
• M15: 18,872,071 km (0.034 R)
• M16: 22,060,899 km (0.091 R)
• M17: 23,046,898 km (0.085 R)
• M18: 25,203,202 km (0.082 R)
• M19: 26,981,921 km (0.089 R)
• M20: 30,129,759 km (0.062 R)
• M21: 37,269,168 km (0.07 R)
• M22: 37,520,492 km (0.075 R)
• M23: 40,229,710 km (0.112 R)
• M24: 40,627,042 km (0.049 R)
• M25: 50,352,100 km (0.092 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 14,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit