🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69

Radius: 14.5

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.57 AU - 0.73 AU

Year: 355 Days

Day: 6.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 52,819,978 km

• M1: 180,265 km (0.111 R)
• M2: 686,654 km (0.076 R)
• M3: 1,259,315 km (0.058 R)
• M4: 2,117,109 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.4

Radius: 11.2

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.52 AU - 0.82 AU

Year: 372 Days

Day: 10.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,819,978 km

• M1: 139,276 km (0.045 R)
• M2: 503,247 km (0.069 R)
• M3: 920,326 km (0.093 R)
• M4: 1,554,322 km (0.105 R)
• M5: 1,936,544 km (0.079 R)
• M6: 2,845,052 km (0.062 R)
• M7: 3,201,095 km (0.111 R)
• M8: 3,587,207 km (0.089 R)
• M9: 3,991,720 km (0.105 R)
• M10: 4,705,601 km (0.108 R)
• M11: 5,116,098 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.8

Radius: 10

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.14 AU - 1.84 AU

Year: 1234 Days

Day: 14 Hours

Environment

Temp: -183 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,819,978 km

• M1: 124,316 km (0.11 R)
• M2: 435,779 km (0.063 R)
• M3: 761,603 km (0.083 R)
• M4: 1,101,639 km (0.117 R)
• M5: 2,274,935 km (0.111 R)
• M6: 3,508,070 km (0.102 R)
• M7: 4,763,795 km (0.114 R)
• M8: 5,579,552 km (0.073 R)
• M9: 6,297,023 km (0.067 R)
• M10: 6,726,967 km (0.114 R)
• M11: 8,530,968 km (0.065 R)
• M12: 9,984,760 km (0.065 R)
• M13: 11,351,786 km (0.081 R)
• M14: 11,846,057 km (0.057 R)
• M15: 12,281,088 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.6

Radius: 12.4

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.84 AU - 2.86 AU

Year: 3263 Days

Day: 6.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,819,978 km

• M1: 154,235 km (0.106 R)
• M2: 916,885 km (0.118 R)
• M3: 1,343,090 km (0.109 R)
• M4: 1,754,334 km (0.065 R)
• M5: 2,174,405 km (0.087 R)
• M6: 3,362,212 km (0.077 R)
• M7: 6,275,481 km (0.036 R)
• M8: 7,697,708 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579

Radius: 8.9

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.1 AU - 3.24 AU

Year: 3828 Days

Day: 10.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 52,819,978 km

• M1: 110,702 km (0.106 R)
• M2: 396,285 km (0.047 R)
• M3: 792,121 km (0.107 R)
• M4: 1,087,277 km (0.113 R)
• M5: 1,364,931 km (0.083 R)
• M6: 1,835,267 km (0.103 R)
• M7: 2,548,549 km (0.113 R)
• M8: 2,995,249 km (0.074 R)
• M9: 3,416,367 km (0.086 R)
• M10: 3,834,941 km (0.086 R)
• M11: 4,287,325 km (0.079 R)
• M12: 6,374,515 km (0.096 R)
• M13: 9,362,732 km (0.108 R)
• M14: 11,836,632 km (0.087 R)
• M15: 13,513,774 km (0.099 R)
• M16: 14,257,425 km (0.05 R)
• M17: 16,484,489 km (0.1 R)
• M18: 16,933,581 km (0.075 R)
• M19: 17,739,016 km (0.034 R)
• M20: 18,092,067 km (0.116 R)
• M21: 19,240,680 km (0.084 R)
• M22: 20,630,743 km (0.065 R)
• M23: 23,680,296 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.8

Radius: 9.4

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.19 AU - 4.21 AU

Year: 5838 Days

Day: 6.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,819,978 km

• M1: 116,986 km (0.09 R)
• M2: 414,237 km (0.088 R)
• M3: 1,232,537 km (0.107 R)
• M4: 1,605,634 km (0.099 R)
• M5: 2,495,442 km (0.106 R)
• M6: 2,979,840 km (0.044 R)
• M7: 3,286,964 km (0.056 R)
• M8: 4,161,962 km (0.119 R)
• M9: 5,242,807 km (0.069 R)
• M10: 6,740,132 km (0.09 R)
• M11: 8,626,112 km (0.084 R)
• M12: 11,373,627 km (0.065 R)
• M13: 15,249,109 km (0.108 R)
• M14: 20,286,967 km (0.118 R)
• M15: 21,022,989 km (0.108 R)
• M16: 22,006,445 km (0.108 R)
• M17: 23,020,120 km (0.082 R)
• M18: 24,972,971 km (0.102 R)
• M19: 29,484,843 km (0.068 R)
• M20: 31,393,263 km (0.046 R)
• M21: 31,686,475 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.6

Radius: 3.1

Gravity: 38.25 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.94 AU - 7.1 AU

Year: 10018 Days

Day: 19.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,819,978 km

• M1: 38,596 km (0.075 R)
• M2: 213,626 km (0.102 R)
• M3: 331,958 km (0.108 R)
• M4: 431,141 km (0.029 R)
• M5: 618,587 km (0.1 R)
• M6: 731,234 km (0.103 R)
• M7: 1,018,612 km (0.052 R)
• M8: 1,438,683 km (0.116 R)
• M9: 1,980,227 km (0.114 R)
• M10: 2,704,131 km (0.105 R)
• M11: 3,830,753 km (0.093 R)
• M12: 4,214,022 km (0.06 R)
• M13: 4,455,922 km (0.056 R)
• M14: 5,237,122 km (0.05 R)
• M15: 5,676,192 km (0.049 R)
• M16: 8,204,097 km (0.12 R)
• M17: 10,541,713 km (0.031 R)
• M18: 11,188,724 km (0.04 R)
• M19: 12,181,156 km (0.063 R)
• M20: 12,506,382 km (0.12 R)
• M21: 16,083,566 km (0.087 R)
• M22: 19,540,773 km (0.118 R)
• M23: 20,820,433 km (0.083 R)
• M24: 23,378,856 km (0.063 R)
• M25: 25,254,215 km (0.065 R)
• M26: 27,227,560 km (0.076 R)
• M27: 33,336,838 km (0.032 R)
• M28: 34,832,368 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.3

Radius: 5.1

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 6.33 AU - 6.45 AU

Year: 10956 Days

Day: 22.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,819,978 km

• M1: 63,429 km (0.108 R)
• M2: 244,892 km (0.108 R)
• M3: 557,402 km (0.071 R)
• M4: 820,245 km (0.091 R)
• M5: 1,185,114 km (0.102 R)
• M6: 1,680,134 km (0.04 R)
• M7: 1,872,666 km (0.107 R)
• M8: 2,215,245 km (0.065 R)
• M9: 2,374,268 km (0.109 R)
• M10: 2,940,047 km (0.073 R)
• M11: 3,176,561 km (0.045 R)
• M12: 3,425,791 km (0.069 R)
• M13: 3,639,417 km (0.05 R)
• M14: 3,836,737 km (0.083 R)
• M15: 4,443,954 km (0.118 R)
• M16: 5,551,876 km (0.102 R)
• M17: 7,286,912 km (0.066 R)
• M18: 7,721,045 km (0.059 R)
• M19: 14,415,101 km (0.072 R)
• M20: 15,098,464 km (0.074 R)
• M21: 20,887,304 km (0.068 R)
• M22: 22,085,283 km (0.112 R)
• M23: 24,442,796 km (0.034 R)
• M24: 25,146,056 km (0.072 R)
• M25: 27,619,058 km (0.1 R)
• M26: 29,354,842 km (0.094 R)
• M27: 31,264,459 km (0.089 R)
• M28: 32,617,871 km (0.038 R)
• M29: 35,107,180 km (0.083 R)
• M30: 40,095,371 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 576.9

Radius: 3

Gravity: 64.1 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.44 AU - 9.24 AU

Year: 16336 Days

Day: 21 Hours

Environment

Temp: -241 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,819,978 km

• M1: 39,195 km (0.104 R)
• M2: 232,625 km (0.077 R)
• M3: 488,437 km (0.064 R)
• M4: 635,193 km (0.085 R)
• M5: 761,603 km (0.108 R)
• M6: 1,489,845 km (0.043 R)
• M7: 1,631,963 km (0.088 R)
• M8: 1,924,876 km (0.051 R)
• M9: 2,396,408 km (0.114 R)
• M10: 3,038,782 km (0.068 R)
• M11: 3,562,673 km (0.033 R)
• M12: 4,425,554 km (0.113 R)
• M13: 9,432,146 km (0.07 R)
• M14: 14,071,026 km (0.048 R)
• M15: 15,802,322 km (0.094 R)
• M16: 16,180,057 km (0.081 R)
• M17: 18,077,407 km (0.108 R)
• M18: 19,767,563 km (0.051 R)
• M19: 20,029,809 km (0.083 R)
• M20: 21,931,197 km (0.112 R)
• M21: 24,048,606 km (0.105 R)
• M22: 30,507,344 km (0.12 R)
• M23: 32,527,514 km (0.055 R)
• M24: 32,770,910 km (0.11 R)
• M25: 40,368,237 km (0.099 R)
• M26: 40,790,253 km (0.1 R)
• M27: 45,781,137 km (0.082 R)
• M28: 53,666,890 km (0.117 R)
• M29: 59,640,034 km (0.069 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.4

Radius: 7.5

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.19 AU - 10.45 AU

Year: 17766 Days

Day: 24.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,819,978 km

• M1: 94,247 km (0.09 R)
• M2: 1,788,891 km (0.107 R)
• M3: 2,829,494 km (0.088 R)
• M4: 3,570,004 km (0.086 R)
• M5: 7,128,787 km (0.096 R)
• M6: 11,769,313 km (0.089 R)
• M7: 14,842,353 km (0.079 R)
• M8: 15,529,306 km (0.087 R)
• M9: 16,453,821 km (0.094 R)
• M10: 17,489,936 km (0.071 R)
• M11: 22,337,356 km (0.059 R)
• M12: 25,018,748 km (0.108 R)
• M13: 31,905,935 km (0.078 R)
• M14: 42,231,329 km (0.117 R)
• M15: 47,034,618 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 502 - 15,104 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit