🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.7

Radius: 9.2

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.59 AU - 0.65 AU

Year: 331 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,413,387 km

• M1: 114,442 km (0.073 R)
• M2: 436,377 km (0.099 R)
• M3: 908,508 km (0.067 R)
• M4: 1,338,452 km (0.12 R)
• M5: 1,716,336 km (0.114 R)
• M6: 2,082,402 km (0.032 R)
• M7: 2,491,104 km (0.099 R)
• M8: 2,942,441 km (0.105 R)
• M9: 3,684,596 km (0.039 R)
• M10: 4,152,538 km (0.113 R)
• M11: 4,876,591 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.2

Radius: 8.1

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.69 AU - 0.73 AU

Year: 406 Days

Day: 7.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,413,387 km

• M1: 101,128 km (0.055 R)
• M2: 441,314 km (0.107 R)
• M3: 739,911 km (0.073 R)
• M4: 1,164,769 km (0.109 R)
• M5: 1,560,306 km (0.07 R)
• M6: 2,135,958 km (0.067 R)
• M7: 2,733,003 km (0.064 R)
• M8: 3,319,128 km (0.046 R)
• M9: 4,106,013 km (0.098 R)
• M10: 5,073,313 km (0.066 R)
• M11: 5,569,230 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.5

Radius: 14.7

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.92 AU - 1.18 AU

Year: 730 Days

Day: 9.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,413,387 km

• M1: 182,809 km (0.103 R)
• M2: 766,240 km (0.061 R)
• M3: 1,251,685 km (0.099 R)
• M4: 2,409,723 km (0.043 R)
• M5: 3,425,342 km (0.076 R)
• M6: 4,374,691 km (0.119 R)
• M7: 5,360,092 km (0.12 R)
• M8: 6,750,604 km (0.119 R)
• M9: 7,722,691 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.5

Radius: 8.5

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.96 AU - 1.24 AU

Year: 782 Days

Day: 10.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,413,387 km

• M1: 105,766 km (0.089 R)
• M2: 416,331 km (0.119 R)
• M3: 917,334 km (0.077 R)
• M4: 1,210,995 km (0.09 R)
• M5: 1,503,010 km (0.114 R)
• M6: 1,963,921 km (0.045 R)
• M7: 2,398,203 km (0.086 R)
• M8: 2,844,753 km (0.068 R)
• M9: 3,448,231 km (0.104 R)
• M10: 3,756,253 km (0.098 R)
• M11: 4,043,930 km (0.067 R)
• M12: 4,952,737 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.9

Radius: 9

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.17 AU - 2.63 AU

Year: 2522 Days

Day: 12.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,413,387 km

• M1: 112,049 km (0.03 R)
• M2: 416,032 km (0.089 R)
• M3: 715,826 km (0.075 R)
• M4: 1,184,067 km (0.037 R)
• M5: 1,479,224 km (0.116 R)
• M6: 1,882,689 km (0.115 R)
• M7: 2,457,444 km (0.075 R)
• M8: 2,913,119 km (0.056 R)
• M9: 3,213,063 km (0.109 R)
• M10: 3,836,437 km (0.094 R)
• M11: 4,136,082 km (0.117 R)
• M12: 5,799,610 km (0.039 R)
• M13: 7,963,693 km (0.106 R)
• M14: 9,421,823 km (0.105 R)
• M15: 10,082,148 km (0.068 R)
• M16: 10,851,830 km (0.07 R)
• M17: 11,577,379 km (0.116 R)
• M18: 11,910,085 km (0.099 R)
• M19: 14,373,363 km (0.03 R)
• M20: 14,952,756 km (0.108 R)
• M21: 15,297,878 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.1

Radius: 12.6

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.98 AU - 3 AU

Year: 2665 Days

Day: 12.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,413,387 km

• M1: 156,629 km (0.092 R)
• M2: 581,487 km (0.095 R)
• M3: 1,179,878 km (0.114 R)
• M4: 1,616,106 km (0.03 R)
• M5: 2,123,093 km (0.117 R)
• M6: 3,101,463 km (0.068 R)
• M7: 3,572,996 km (0.036 R)
• M8: 4,297,348 km (0.064 R)
• M9: 5,728,551 km (0.101 R)
• M10: 6,360,752 km (0.055 R)
• M11: 8,540,542 km (0.114 R)
• M12: 9,836,210 km (0.077 R)
• M13: 13,485,051 km (0.101 R)
• M14: 14,319,658 km (0.075 R)
• M15: 15,736,649 km (0.081 R)
• M16: 16,401,312 km (0.068 R)
• M17: 18,340,101 km (0.109 R)
• M18: 19,191,462 km (0.088 R)
• M19: 19,597,620 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.3

Radius: 11.8

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.5 AU - 5.52 AU

Year: 7606 Days

Day: 6.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,413,387 km

• M1: 146,756 km (0.116 R)
• M2: 612,753 km (0.119 R)
• M3: 1,236,875 km (0.11 R)
• M4: 1,868,029 km (0.1 R)
• M5: 2,430,816 km (0.055 R)
• M6: 3,125,399 km (0.085 R)
• M7: 3,850,200 km (0.032 R)
• M8: 4,411,192 km (0.097 R)
• M9: 4,881,528 km (0.082 R)
• M10: 5,697,585 km (0.096 R)
• M11: 6,393,514 km (0.115 R)
• M12: 7,835,637 km (0.11 R)
• M13: 10,510,447 km (0.098 R)
• M14: 11,403,995 km (0.099 R)
• M15: 13,398,883 km (0.051 R)
• M16: 14,152,108 km (0.08 R)
• M17: 19,496,492 km (0.059 R)
• M18: 28,151,627 km (0.06 R)
• M19: 35,232,842 km (0.088 R)
• M20: 38,139,678 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959.7

Radius: 4

Gravity: 59.98 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.51 AU - 6.69 AU

Year: 10218 Days

Day: 15.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,413,387 km

• M1: 49,816 km (0.068 R)
• M2: 240,703 km (0.027 R)
• M3: 372,050 km (0.105 R)
• M4: 644,468 km (0.081 R)
• M5: 801,246 km (0.101 R)
• M6: 1,517,521 km (0.105 R)
• M7: 2,093,622 km (0.079 R)
• M8: 2,461,483 km (0.099 R)
• M9: 3,687,887 km (0.113 R)
• M10: 4,135,184 km (0.111 R)
• M11: 5,170,551 km (0.091 R)
• M12: 5,480,518 km (0.082 R)
• M13: 6,137,402 km (0.074 R)
• M14: 6,804,459 km (0.113 R)
• M15: 9,243,353 km (0.104 R)
• M16: 9,596,853 km (0.082 R)
• M17: 10,170,561 km (0.05 R)
• M18: 11,792,351 km (0.056 R)
• M19: 11,969,326 km (0.093 R)
• M20: 12,943,507 km (0.094 R)
• M21: 13,838,401 km (0.101 R)
• M22: 14,101,394 km (0.111 R)
• M23: 15,187,026 km (0.102 R)
• M24: 19,017,929 km (0.111 R)
• M25: 19,754,848 km (0.084 R)
• M26: 20,938,466 km (0.106 R)
• M27: 22,710,303 km (0.087 R)
• M28: 25,355,194 km (0.108 R)
• M29: 25,551,616 km (0.118 R)
• M30: 35,479,379 km (0.088 R)
• M31: 37,350,250 km (0.068 R)
• M32: 38,893,502 km (0.116 R)
• M33: 39,417,244 km (0.112 R)
• M34: 41,832,352 km (0.119 R)
• M35: 45,927,743 km (0.099 R)
• M36: 47,399,637 km (0.083 R)
• M37: 53,440,698 km (0.073 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 13,851 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit