🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.1

Radius: 11

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.64 AU - 0.72 AU

Year: 368 Days

Day: 5.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 88,100,000 km

• M1: 136,882 km (0.092 R)
• M2: 484,398 km (0.09 R)
• M3: 850,314 km (0.107 R)
• M4: 1,209,050 km (0.071 R)
• M5: 1,685,669 km (0.066 R)
• M6: 2,046,499 km (0.048 R)
• M7: 2,583,406 km (0.09 R)
• M8: 2,949,322 km (0.117 R)
• M9: 3,674,273 km (0.101 R)
• M10: 4,542,839 km (0.118 R)
• M11: 5,157,835 km (0.098 R)
• M12: 5,609,172 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.8

Radius: 14.7

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.78 AU - 0.84 AU

Year: 478 Days

Day: 9.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 88,100,000 km

• M1: 182,809 km (0.046 R)
• M2: 688,898 km (0.09 R)
• M3: 1,390,063 km (0.095 R)
• M4: 2,197,742 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.4

Radius: 12.4

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.74 AU - 1 AU

Year: 532 Days

Day: 6.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,100,000 km

• M1: 154,235 km (0.1 R)
• M2: 544,536 km (0.095 R)
• M3: 1,116,599 km (0.106 R)
• M4: 1,545,944 km (0.042 R)
• M5: 2,132,368 km (0.083 R)
• M6: 2,592,531 km (0.087 R)
• M7: 3,142,902 km (0.072 R)
• M8: 3,583,019 km (0.116 R)
• M9: 4,064,275 km (0.114 R)
• M10: 4,730,733 km (0.118 R)
• M11: 5,191,794 km (0.105 R)
• M12: 5,628,919 km (0.073 R)
• M13: 6,071,579 km (0.11 R)
• M14: 7,069,247 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.9

Radius: 9.6

Gravity: 9.47 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.66 AU - 1.08 AU

Year: 532 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,100,000 km

• M1: 119,529 km (0.048 R)
• M2: 482,902 km (0.097 R)
• M3: 800,797 km (0.063 R)
• M4: 1,136,645 km (0.076 R)
• M5: 1,545,645 km (0.058 R)
• M6: 2,024,807 km (0.11 R)
• M7: 2,569,044 km (0.105 R)
• M8: 2,980,289 km (0.104 R)
• M9: 3,605,608 km (0.089 R)
• M10: 4,241,100 km (0.056 R)
• M11: 5,016,017 km (0.107 R)
• M12: 5,589,126 km (0.098 R)
• M13: 6,302,558 km (0.063 R)
• M14: 6,783,515 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.7

Radius: 11.2

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.21 AU - 1.55 AU

Year: 1063 Days

Day: 5.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 88,100,000 km

• M1: 139,425 km (0.1 R)
• M2: 1,199,925 km (0.061 R)
• M3: 3,971,225 km (0.106 R)
• M4: 4,680,618 km (0.115 R)
• M5: 5,149,009 km (0.041 R)
• M6: 6,886,140 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.1

Radius: 10.5

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.25 AU - 1.81 AU

Year: 1241 Days

Day: 5.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 88,100,000 km

• M1: 130,898 km (0.096 R)
• M2: 568,322 km (0.088 R)
• M3: 1,024,895 km (0.115 R)
• M4: 1,383,780 km (0.086 R)
• M5: 1,927,718 km (0.098 R)
• M6: 2,473,601 km (0.111 R)
• M7: 2,870,484 km (0.073 R)
• M8: 4,182,906 km (0.118 R)
• M9: 4,692,736 km (0.101 R)
• M10: 5,182,519 km (0.108 R)
• M11: 5,837,010 km (0.068 R)
• M12: 6,264,710 km (0.084 R)
• M13: 7,007,763 km (0.101 R)
• M14: 7,413,771 km (0.097 R)
• M15: 8,959,865 km (0.096 R)
• M16: 9,622,434 km (0.039 R)
• M17: 10,124,784 km (0.076 R)
• M18: 11,181,693 km (0.068 R)
• M19: 11,701,845 km (0.12 R)
• M20: 12,165,598 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.9

Radius: 12.3

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.68 AU - 1.74 AU

Year: 1467 Days

Day: 8.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,100,000 km

• M1: 153,039 km (0.038 R)
• M2: 609,911 km (0.118 R)
• M3: 1,148,164 km (0.114 R)
• M4: 1,596,060 km (0.102 R)
• M5: 2,099,307 km (0.093 R)
• M6: 2,574,729 km (0.084 R)
• M7: 3,108,345 km (0.112 R)
• M8: 4,845,924 km (0.108 R)
• M9: 5,283,198 km (0.043 R)
• M10: 5,726,158 km (0.117 R)
• M11: 6,348,036 km (0.094 R)
• M12: 7,328,201 km (0.105 R)
• M13: 8,872,201 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.5

Radius: 15

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.33 AU - 4.51 AU

Year: 5091 Days

Day: 14.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 88,100,000 km

• M1: 186,549 km (0.03 R)
• M2: 705,504 km (0.086 R)
• M3: 1,694,196 km (0.117 R)
• M4: 2,476,892 km (0.119 R)
• M5: 3,285,468 km (0.112 R)
• M6: 3,933,676 km (0.114 R)
• M7: 6,471,454 km (0.118 R)
• M8: 6,970,962 km (0.029 R)
• M9: 8,237,756 km (0.077 R)
• M10: 9,316,058 km (0.077 R)
• M11: 9,824,691 km (0.102 R)
• M12: 10,396,753 km (0.082 R)
• M13: 11,084,305 km (0.072 R)
• M14: 12,499,800 km (0.092 R)
• M15: 18,443,772 km (0.067 R)
• M16: 20,286,369 km (0.107 R)
• M17: 22,777,772 km (0.032 R)
• M18: 25,221,603 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894

Radius: 6.1

Gravity: 24.03 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.19 AU - 12.49 AU

Year: 21812 Days

Day: 15.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 88,100,000 km

• M1: 75,996 km (0.086 R)
• M2: 273,764 km (0.072 R)
• M3: 902,823 km (0.039 R)
• M4: 1,535,473 km (0.083 R)
• M5: 2,267,455 km (0.112 R)
• M6: 3,385,101 km (0.089 R)
• M7: 3,627,898 km (0.094 R)
• M8: 4,643,817 km (0.117 R)
• M9: 10,431,759 km (0.045 R)
• M10: 12,524,334 km (0.112 R)
• M11: 18,617,754 km (0.045 R)
• M12: 19,957,553 km (0.039 R)
• M13: 21,669,401 km (0.116 R)
• M14: 23,150,869 km (0.091 R)
• M15: 23,805,958 km (0.073 R)
• M16: 30,138,885 km (0.1 R)
• M17: 35,890,175 km (0.107 R)
• M18: 39,793,931 km (0.119 R)
• M19: 45,483,138 km (0.112 R)
• M20: 46,682,464 km (0.102 R)
• M21: 53,943,047 km (0.086 R)
• M22: 58,843,275 km (0.083 R)
• M23: 65,754,398 km (0.114 R)
• M24: 71,336,493 km (0.076 R)
• M25: 74,360,165 km (0.099 R)
• M26: 77,953,954 km (0.108 R)
• M27: 78,197,649 km (0.074 R)
• M28: 86,525,015 km (0.078 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: 430 - 18,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit