🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.1

Radius: 12.2

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.61 AU - 0.85 AU

Year: 438 Days

Day: 13.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,716,871 km

• M1: 152,440 km (0.111 R)
• M2: 548,426 km (0.046 R)
• M3: 1,006,494 km (0.1 R)
• M4: 1,393,654 km (0.096 R)
• M5: 1,846,487 km (0.087 R)
• M6: 2,362,898 km (0.118 R)
• M7: 2,785,662 km (0.114 R)
• M8: 3,358,023 km (0.092 R)
• M9: 3,859,176 km (0.052 R)
• M10: 4,896,488 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.4

Radius: 9.4

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.88 AU - 0.96 AU

Year: 620 Days

Day: 14.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,716,871 km

• M1: 116,986 km (0.071 R)
• M2: 415,284 km (0.116 R)
• M3: 733,329 km (0.037 R)
• M4: 1,162,824 km (0.086 R)
• M5: 1,597,855 km (0.096 R)
• M6: 2,082,402 km (0.111 R)
• M7: 2,633,970 km (0.114 R)
• M8: 3,280,233 km (0.094 R)
• M9: 3,611,442 km (0.073 R)
• M10: 3,927,542 km (0.083 R)
• M11: 4,799,698 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.3

Radius: 11.6

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.94 AU - 1.42 AU

Year: 901 Days

Day: 14.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,716,871 km

• M1: 144,212 km (0.113 R)
• M2: 643,420 km (0.064 R)
• M3: 1,355,506 km (0.091 R)
• M4: 1,837,959 km (0.035 R)
• M5: 2,565,603 km (0.112 R)
• M6: 3,233,708 km (0.101 R)
• M7: 3,789,912 km (0.063 R)
• M8: 4,675,382 km (0.034 R)
• M9: 5,185,511 km (0.103 R)
• M10: 6,010,394 km (0.058 R)
• M11: 6,657,704 km (0.046 R)
• M12: 7,190,422 km (0.067 R)
• M13: 8,091,898 km (0.108 R)
• M14: 8,595,744 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.8

Radius: 14.3

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.19 AU - 1.69 AU

Year: 1215 Days

Day: 7.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,716,871 km

• M1: 179,069 km (0.107 R)
• M2: 799,002 km (0.1 R)
• M3: 1,901,539 km (0.084 R)
• M4: 2,350,332 km (0.055 R)
• M5: 3,217,701 km (0.095 R)
• M6: 3,677,116 km (0.111 R)
• M7: 5,164,567 km (0.088 R)
• M8: 6,484,918 km (0.026 R)
• M9: 8,489,081 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.9

Radius: 11.2

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.75 AU - 2.25 AU

Year: 1988 Days

Day: 13.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,716,871 km

• M1: 139,425 km (0.051 R)
• M2: 499,507 km (0.06 R)
• M3: 931,396 km (0.105 R)
• M4: 1,533,378 km (0.088 R)
• M5: 1,961,976 km (0.09 R)
• M6: 2,750,058 km (0.092 R)
• M7: 3,186,734 km (0.119 R)
• M8: 3,737,553 km (0.061 R)
• M9: 4,182,457 km (0.102 R)
• M10: 4,803,438 km (0.102 R)
• M11: 5,895,951 km (0.111 R)
• M12: 6,526,207 km (0.039 R)
• M13: 7,040,973 km (0.043 R)
• M14: 7,554,992 km (0.026 R)
• M15: 9,185,608 km (0.117 R)
• M16: 9,999,570 km (0.106 R)
• M17: 12,072,997 km (0.096 R)
• M18: 12,692,183 km (0.034 R)
• M19: 14,036,020 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.6

Radius: 8.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.37 AU - 3.09 AU

Year: 3171 Days

Day: 9.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,716,871 km

• M1: 108,608 km (0.106 R)
• M2: 405,709 km (0.116 R)
• M3: 730,636 km (0.101 R)
• M4: 1,028,934 km (0.075 R)
• M5: 1,729,052 km (0.053 R)
• M6: 3,232,361 km (0.086 R)
• M7: 3,558,185 km (0.116 R)
• M8: 5,110,712 km (0.106 R)
• M9: 6,709,016 km (0.085 R)
• M10: 7,070,444 km (0.076 R)
• M11: 8,202,302 km (0.098 R)
• M12: 9,554,218 km (0.093 R)
• M13: 10,411,413 km (0.083 R)
• M14: 12,819,790 km (0.07 R)
• M15: 14,772,341 km (0.048 R)
• M16: 17,222,455 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 251.2

Radius: 7.3

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.59 AU - 8.03 AU

Year: 13893 Days

Day: 15.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,716,871 km

• M1: 90,806 km (0.077 R)
• M2: 4,804,934 km (0.06 R)
• M3: 5,355,305 km (0.1 R)
• M4: 9,206,253 km (0.09 R)
• M5: 9,861,641 km (0.042 R)
• M6: 10,902,244 km (0.059 R)
• M7: 13,142,173 km (0.114 R)
• M8: 13,375,845 km (0.073 R)
• M9: 14,648,923 km (0.104 R)
• M10: 20,868,604 km (0.077 R)
• M11: 23,336,370 km (0.095 R)
• M12: 29,337,788 km (0.065 R)
• M13: 31,686,026 km (0.025 R)
• M14: 33,067,263 km (0.099 R)
• M15: 33,718,014 km (0.117 R)
• M16: 34,710,296 km (0.08 R)
• M17: 40,210,112 km (0.082 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 17,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit