🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886

Radius: 8.4

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.06 AU - 1.08 AU

Year: 738 Days

Day: 11.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,117,333 km

• M1: 104,419 km (0.092 R)
• M2: 383,120 km (0.066 R)
• M3: 681,568 km (0.12 R)
• M4: 949,049 km (0.046 R)
• M5: 1,895,405 km (0.09 R)
• M6: 2,259,227 km (0.115 R)
• M7: 3,397,368 km (0.106 R)
• M8: 3,967,934 km (0.101 R)
• M9: 4,950,493 km (0.092 R)
• M10: 6,465,919 km (0.115 R)
• M11: 7,795,695 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.9

Radius: 11.2

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.78 AU - 4.18 AU

Year: 5295 Days

Day: 9.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,117,333 km

• M1: 139,425 km (0.107 R)
• M2: 965,654 km (0.12 R)
• M3: 1,406,519 km (0.082 R)
• M4: 1,957,339 km (0.081 R)
• M5: 2,848,493 km (0.071 R)
• M6: 3,211,567 km (0.12 R)
• M7: 3,756,851 km (0.059 R)
• M8: 4,320,686 km (0.068 R)
• M9: 4,986,695 km (0.112 R)
• M10: 6,032,983 km (0.083 R)
• M11: 6,693,308 km (0.101 R)
• M12: 10,820,713 km (0.104 R)
• M13: 11,301,371 km (0.071 R)
• M14: 11,880,016 km (0.06 R)
• M15: 12,521,791 km (0.061 R)
• M16: 15,173,712 km (0.114 R)
• M17: 16,922,661 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.3

Radius: 12.8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.6 AU - 4.46 AU

Year: 5395 Days

Day: 14.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,117,333 km

• M1: 161,715 km (0.054 R)
• M2: 707,299 km (0.089 R)
• M3: 3,282,028 km (0.113 R)
• M4: 3,706,287 km (0.095 R)
• M5: 4,329,662 km (0.114 R)
• M6: 4,842,333 km (0.064 R)
• M7: 5,533,027 km (0.076 R)
• M8: 8,149,793 km (0.115 R)
• M9: 9,892,608 km (0.098 R)
• M10: 11,320,071 km (0.08 R)
• M11: 11,825,263 km (0.114 R)
• M12: 13,330,367 km (0.043 R)
• M13: 13,894,052 km (0.065 R)
• M14: 14,367,080 km (0.117 R)
• M15: 14,850,730 km (0.097 R)
• M16: 17,253,571 km (0.069 R)
• M17: 18,610,574 km (0.116 R)
• M18: 21,676,283 km (0.117 R)
• M19: 22,241,912 km (0.119 R)
• M20: 23,035,679 km (0.106 R)
• M21: 23,624,795 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.1

Radius: 11.1

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.29 AU - 5.69 AU

Year: 7433 Days

Day: 7.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,117,333 km

• M1: 138,079 km (0.109 R)
• M2: 898,186 km (0.108 R)
• M3: 1,399,039 km (0.103 R)
• M4: 2,135,958 km (0.093 R)
• M5: 2,679,597 km (0.054 R)
• M6: 3,940,707 km (0.03 R)
• M7: 4,715,325 km (0.113 R)
• M8: 6,536,978 km (0.027 R)
• M9: 6,988,165 km (0.073 R)
• M10: 8,644,363 km (0.104 R)
• M11: 11,860,119 km (0.045 R)
• M12: 13,089,066 km (0.117 R)
• M13: 15,428,028 km (0.115 R)
• M14: 16,284,177 km (0.073 R)
• M15: 17,455,678 km (0.116 R)
• M16: 21,176,925 km (0.091 R)
• M17: 22,844,193 km (0.084 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.9

Radius: 4.3

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.11 AU - 7.23 AU

Year: 10220 Days

Day: 23.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 116.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,117,333 km

• M1: 61,036 km (0.082 R)
• M2: 447,447 km (0.11 R)
• M3: 602,730 km (0.12 R)
• M4: 1,148,164 km (0.044 R)
• M5: 3,185,387 km (0.12 R)
• M6: 3,814,297 km (0.087 R)
• M7: 5,013,473 km (0.082 R)
• M8: 5,683,971 km (0.06 R)
• M9: 8,655,284 km (0.059 R)
• M10: 9,007,587 km (0.074 R)
• M11: 12,179,062 km (0.095 R)
• M12: 16,494,212 km (0.033 R)
• M13: 17,464,654 km (0.039 R)
• M14: 18,216,982 km (0.071 R)
• M15: 21,231,079 km (0.1 R)
• M16: 24,252,208 km (0.057 R)
• M17: 24,561,427 km (0.076 R)
• M18: 25,187,793 km (0.098 R)
• M19: 25,985,749 km (0.045 R)
• M20: 26,228,247 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.4

Radius: 5.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.97 AU - 6.73 AU

Year: 10671 Days

Day: 19.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,117,333 km

• M1: 74,500 km (0.043 R)
• M2: 312,959 km (0.101 R)
• M3: 496,665 km (0.07 R)
• M4: 694,134 km (0.033 R)
• M5: 914,941 km (0.118 R)
• M6: 1,598,902 km (0.092 R)
• M7: 2,285,556 km (0.094 R)
• M8: 3,349,496 km (0.104 R)
• M9: 4,220,754 km (0.118 R)
• M10: 5,958,334 km (0.098 R)
• M11: 7,197,004 km (0.053 R)
• M12: 10,250,297 km (0.062 R)
• M13: 15,155,910 km (0.055 R)
• M14: 17,715,081 km (0.03 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.6

Radius: 7.3

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.43 AU - 7.11 AU

Year: 11747 Days

Day: 24.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,117,333 km

• M1: 91,255 km (0.119 R)
• M2: 420,071 km (0.101 R)
• M3: 731,982 km (0.034 R)
• M4: 1,358,199 km (0.056 R)
• M5: 3,116,572 km (0.062 R)
• M6: 4,832,310 km (0.078 R)
• M7: 7,719,699 km (0.089 R)
• M8: 9,708,453 km (0.079 R)
• M9: 10,921,393 km (0.077 R)
• M10: 12,015,851 km (0.076 R)
• M11: 31,770,100 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.8

Radius: 4.4

Gravity: 35.63 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.59 AU - 12.21 AU

Year: 23998 Days

Day: 16.3 Hours

Environment

Temp: -246 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,117,333 km

• M1: 55,202 km (0.084 R)
• M2: 381,475 km (0.11 R)
• M3: 590,912 km (0.086 R)
• M4: 840,441 km (0.119 R)
• M5: 1,431,951 km (0.088 R)
• M6: 2,089,284 km (0.092 R)
• M7: 3,558,185 km (0.114 R)
• M8: 4,003,538 km (0.094 R)
• M9: 5,081,690 km (0.096 R)
• M10: 5,942,925 km (0.081 R)
• M11: 8,819,991 km (0.05 R)
• M12: 9,632,158 km (0.112 R)
• M13: 10,556,374 km (0.102 R)
• M14: 11,741,787 km (0.102 R)
• M15: 12,579,535 km (0.058 R)
• M16: 14,530,142 km (0.094 R)
• M17: 17,461,961 km (0.106 R)
• M18: 18,644,233 km (0.042 R)
• M19: 19,302,464 km (0.082 R)
• M20: 24,350,195 km (0.074 R)
• M21: 27,235,190 km (0.055 R)
• M22: 27,838,219 km (0.099 R)
• M23: 28,697,509 km (0.099 R)
• M24: 30,468,598 km (0.114 R)
• M25: 30,727,552 km (0.066 R)
• M26: 37,983,498 km (0.107 R)
• M27: 41,686,344 km (0.085 R)
• M28: 47,855,012 km (0.113 R)
• M29: 48,204,772 km (0.105 R)
• M30: 58,904,162 km (0.047 R)
• M31: 69,727,418 km (0.114 R)
• M32: 76,913,501 km (0.146 R)
• M33: 83,561,182 km (0.104 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 12,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit