🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.8

Radius: 10.2

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.76 AU - 0.84 AU

Year: 503 Days

Day: 8.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,451,889 km

• M1: 126,859 km (0.075 R)
• M2: 530,324 km (0.075 R)
• M3: 848,519 km (0.096 R)
• M4: 1,172,847 km (0.042 R)
• M5: 1,545,496 km (0.073 R)
• M6: 1,929,065 km (0.079 R)
• M7: 2,415,856 km (0.102 R)
• M8: 3,195,111 km (0.032 R)
• M9: 3,571,500 km (0.097 R)
• M10: 4,119,477 km (0.036 R)
• M11: 4,691,090 km (0.099 R)
• M12: 5,349,321 km (0.087 R)
• M13: 5,754,880 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.2

Radius: 10.8

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.81 AU - 1.29 AU

Year: 756 Days

Day: 6.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,451,889 km

• M1: 134,339 km (0.08 R)
• M2: 485,894 km (0.081 R)
• M3: 896,390 km (0.071 R)
• M4: 1,995,187 km (0.105 R)
• M5: 2,417,202 km (0.118 R)
• M6: 2,851,036 km (0.115 R)
• M7: 3,524,376 km (0.067 R)
• M8: 3,877,278 km (0.104 R)
• M9: 4,300,640 km (0.05 R)
• M10: 5,533,027 km (0.086 R)
• M11: 5,933,500 km (0.069 R)
• M12: 6,665,333 km (0.094 R)
• M13: 7,320,123 km (0.074 R)
• M14: 7,663,301 km (0.114 R)
• M15: 8,041,185 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628

Radius: 12

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.99 AU - 1.61 AU

Year: 1042 Days

Day: 5.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,451,889 km

• M1: 149,299 km (0.118 R)
• M2: 538,104 km (0.081 R)
• M3: 923,767 km (0.081 R)
• M4: 1,366,726 km (0.062 R)
• M5: 1,785,002 km (0.11 R)
• M6: 2,344,049 km (0.055 R)
• M7: 2,838,021 km (0.094 R)
• M8: 3,487,276 km (0.054 R)
• M9: 4,824,382 km (0.041 R)
• M10: 5,430,104 km (0.114 R)
• M11: 6,817,325 km (0.099 R)
• M12: 7,216,302 km (0.075 R)
• M13: 8,191,231 km (0.083 R)
• M14: 8,697,022 km (0.081 R)
• M15: 9,308,728 km (0.106 R)
• M16: 10,098,455 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.4

Radius: 8.6

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.15 AU - 1.59 AU

Year: 1127 Days

Day: 8.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 57.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,451,889 km

• M1: 107,112 km (0.106 R)
• M2: 569,369 km (0.093 R)
• M3: 924,814 km (0.114 R)
• M4: 1,286,542 km (0.082 R)
• M5: 1,578,856 km (0.031 R)
• M6: 1,946,119 km (0.091 R)
• M7: 2,476,144 km (0.101 R)
• M8: 2,867,342 km (0.117 R)
• M9: 3,585,562 km (0.101 R)
• M10: 4,173,182 km (0.116 R)
• M11: 4,636,487 km (0.104 R)
• M12: 5,793,926 km (0.086 R)
• M13: 6,212,052 km (0.076 R)
• M14: 6,532,939 km (0.085 R)
• M15: 7,010,605 km (0.089 R)
• M16: 7,308,155 km (0.102 R)
• M17: 7,640,113 km (0.06 R)
• M18: 8,116,283 km (0.078 R)
• M19: 9,513,228 km (0.048 R)
• M20: 10,158,593 km (0.074 R)
• M21: 10,702,082 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.9

Radius: 11.4

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.75 AU - 2.89 AU

Year: 2484 Days

Day: 9.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,451,889 km

• M1: 151,393 km (0.067 R)
• M2: 612,005 km (0.066 R)
• M3: 997,818 km (0.025 R)
• M4: 2,055,325 km (0.066 R)
• M5: 2,605,546 km (0.076 R)
• M6: 3,577,184 km (0.085 R)
• M7: 4,595,796 km (0.101 R)
• M8: 5,694,742 km (0.086 R)
• M9: 6,361,500 km (0.103 R)
• M10: 7,504,876 km (0.093 R)
• M11: 8,575,399 km (0.093 R)
• M12: 11,673,271 km (0.085 R)
• M13: 12,705,347 km (0.112 R)
• M14: 13,657,538 km (0.099 R)
• M15: 14,510,844 km (0.108 R)
• M16: 16,587,113 km (0.119 R)
• M17: 18,854,418 km (0.113 R)
• M18: 19,496,193 km (0.085 R)
• M19: 19,972,213 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.8

Radius: 13.9

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.95 AU - 3.53 AU

Year: 4099 Days

Day: 13.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,451,889 km

• M1: 172,935 km (0.115 R)
• M2: 936,183 km (0.108 R)
• M3: 2,749,310 km (0.119 R)
• M4: 3,721,097 km (0.087 R)
• M5: 5,225,005 km (0.057 R)
• M6: 6,070,083 km (0.07 R)
• M7: 7,302,919 km (0.11 R)
• M8: 8,508,678 km (0.087 R)
• M9: 9,120,234 km (0.105 R)
• M10: 10,218,881 km (0.057 R)
• M11: 11,132,924 km (0.09 R)
• M12: 12,532,412 km (0.041 R)
• M13: 13,375,994 km (0.09 R)
• M14: 14,204,168 km (0.083 R)
• M15: 14,738,981 km (0.113 R)
• M16: 16,366,456 km (0.036 R)
• M17: 19,579,968 km (0.061 R)
• M18: 20,109,245 km (0.07 R)
• M19: 21,335,050 km (0.091 R)
• M20: 23,636,613 km (0.11 R)
• M21: 24,464,637 km (0.086 R)
• M22: 25,782,295 km (0.103 R)
• M23: 26,579,203 km (0.091 R)

Asteroid Belt

Center: 3.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.2

Radius: 13.1

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.69 AU - 4.25 AU

Year: 5560 Days

Day: 8.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,451,889 km

• M1: 163,810 km (0.035 R)
• M2: 947,703 km (0.066 R)
• M3: 1,500,018 km (0.069 R)
• M4: 1,989,053 km (0.086 R)
• M5: 4,892,748 km (0.062 R)
• M6: 7,059,972 km (0.092 R)
• M7: 7,869,147 km (0.11 R)
• M8: 9,585,035 km (0.111 R)
• M9: 11,002,923 km (0.048 R)
• M10: 12,400,018 km (0.115 R)
• M11: 13,578,400 km (0.101 R)
• M12: 15,910,033 km (0.083 R)
• M13: 17,430,994 km (0.096 R)
• M14: 17,892,205 km (0.085 R)
• M15: 18,361,792 km (0.12 R)
• M16: 19,395,514 km (0.064 R)
• M17: 19,891,131 km (0.073 R)
• M18: 22,574,468 km (0.113 R)
• M19: 23,044,056 km (0.104 R)
• M20: 24,246,673 km (0.104 R)
• M21: 24,822,027 km (0.095 R)
• M22: 28,195,907 km (0.102 R)
• M23: 28,832,446 km (0.118 R)
• M24: 29,571,460 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.3

Radius: 10.9

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.59 AU - 5.19 AU

Year: 6466 Days

Day: 12.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,451,889 km

• M1: 135,984 km (0.093 R)
• M2: 2,490,356 km (0.118 R)
• M3: 3,316,136 km (0.115 R)
• M4: 7,171,273 km (0.071 R)
• M5: 8,064,672 km (0.085 R)
• M6: 8,950,590 km (0.046 R)
• M7: 9,479,269 km (0.092 R)
• M8: 12,794,208 km (0.084 R)
• M9: 13,676,985 km (0.092 R)
• M10: 15,333,333 km (0.091 R)
• M11: 15,855,430 km (0.054 R)
• M12: 16,935,077 km (0.12 R)
• M13: 18,063,045 km (0.074 R)
• M14: 20,121,961 km (0.067 R)
• M15: 20,677,717 km (0.061 R)
• M16: 23,382,596 km (0.118 R)
• M17: 24,464,787 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.3

Radius: 4.2

Gravity: 35.56 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 9.54 AU - 11.26 AU

Year: 23575 Days

Day: 17.4 Hours

Environment

Temp: -244 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 82,451,889 km

• M1: 102,774 km (0.063 R)
• M2: 288,125 km (0.107 R)
• M3: 442,959 km (0.087 R)
• M4: 635,492 km (0.085 R)
• M5: 1,094,608 km (0.066 R)
• M6: 1,860,998 km (0.111 R)
• M7: 2,986,572 km (0.09 R)
• M8: 4,192,331 km (0.093 R)
• M9: 6,157,000 km (0.103 R)
• M10: 11,373,029 km (0.067 R)
• M11: 12,112,491 km (0.106 R)
• M12: 12,319,684 km (0.111 R)
• M13: 15,635,521 km (0.117 R)
• M14: 17,850,616 km (0.095 R)
• M15: 18,208,903 km (0.109 R)
• M16: 20,266,024 km (0.038 R)
• M17: 21,652,796 km (0.056 R)
• M18: 28,436,610 km (0.08 R)
• M19: 30,424,916 km (0.105 R)
• M20: 30,936,092 km (0.068 R)
• M21: 32,371,334 km (0.089 R)
• M22: 33,307,368 km (0.084 R)
• M23: 35,373,763 km (0.059 R)
• M24: 36,223,778 km (0.112 R)
• M25: 40,832,888 km (0.111 R)
• M26: 41,611,246 km (0.115 R)
• M27: 51,193,588 km (0.108 R)
• M28: 55,253,525 km (0.11 R)
• M29: 66,759,546 km (0.118 R)
• M30: 74,329,647 km (0.047 R)
• M31: 80,004,492 km (0.063 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 10,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit