🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.3

Radius: 11.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.68 AU - 1.12 AU

Year: 569 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,355,615 km

• M1: 144,212 km (0.106 R)
• M2: 715,676 km (0.098 R)
• M3: 1,184,815 km (0.118 R)
• M4: 2,008,052 km (0.075 R)
• M5: 2,690,368 km (0.101 R)
• M6: 3,263,029 km (0.079 R)
• M7: 4,607,764 km (0.086 R)
• M8: 5,379,539 km (0.104 R)
• M9: 5,796,768 km (0.087 R)
• M10: 6,618,210 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.9

Radius: 13.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.81 AU - 1.19 AU

Year: 667 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 75,355,615 km

• M1: 171,738 km (0.095 R)
• M2: 661,522 km (0.083 R)
• M3: 1,382,284 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.3

Radius: 13.9

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.03 AU - 1.29 AU

Year: 833 Days

Day: 11.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,355,615 km

• M1: 172,935 km (0.12 R)
• M2: 658,679 km (0.098 R)
• M3: 1,174,343 km (0.105 R)
• M4: 1,618,799 km (0.107 R)
• M5: 2,505,764 km (0.061 R)
• M6: 3,755,505 km (0.119 R)
• M7: 4,596,395 km (0.083 R)
• M8: 5,125,971 km (0.103 R)
• M9: 6,329,785 km (0.108 R)
• M10: 7,216,601 km (0.092 R)
• M11: 8,439,713 km (0.093 R)
• M12: 8,912,592 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.3

Radius: 8.3

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.19 AU - 1.77 AU

Year: 1201 Days

Day: 11 Hours

Environment

Temp: -190 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,355,615 km

• M1: 103,223 km (0.089 R)
• M2: 663,018 km (0.085 R)
• M3: 1,012,030 km (0.073 R)
• M4: 2,225,717 km (0.083 R)
• M5: 2,488,411 km (0.091 R)
• M6: 3,210,969 km (0.095 R)
• M7: 3,577,334 km (0.078 R)
• M8: 4,564,680 km (0.11 R)
• M9: 5,485,156 km (0.044 R)
• M10: 5,824,743 km (0.107 R)
• M11: 6,502,122 km (0.068 R)
• M12: 7,113,678 km (0.054 R)
• M13: 8,583,028 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.8

Radius: 11.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.31 AU - 2.87 AU

Year: 2780 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,355,615 km

• M1: 138,378 km (0.042 R)
• M2: 737,069 km (0.081 R)
• M3: 1,284,747 km (0.073 R)
• M4: 1,838,558 km (0.068 R)
• M5: 2,561,116 km (0.099 R)
• M6: 4,442,758 km (0.115 R)
• M7: 5,384,027 km (0.113 R)
• M8: 5,791,083 km (0.098 R)
• M9: 6,192,903 km (0.077 R)
• M10: 7,165,738 km (0.059 R)
• M11: 8,362,970 km (0.088 R)
• M12: 8,877,586 km (0.094 R)
• M13: 9,516,070 km (0.102 R)
• M14: 10,512,392 km (0.104 R)
• M15: 13,263,497 km (0.096 R)
• M16: 14,369,025 km (0.075 R)
• M17: 15,582,862 km (0.098 R)
• M18: 16,965,147 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.6

Radius: 12

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.05 AU - 4.79 AU

Year: 5176 Days

Day: 11.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,355,615 km

• M1: 175,777 km (0.118 R)
• M2: 627,713 km (0.087 R)
• M3: 1,037,312 km (0.112 R)
• M4: 1,571,526 km (0.097 R)
• M5: 1,959,732 km (0.037 R)
• M6: 4,000,696 km (0.095 R)
• M7: 5,651,359 km (0.117 R)
• M8: 6,228,507 km (0.118 R)
• M9: 9,060,694 km (0.094 R)
• M10: 11,961,547 km (0.076 R)
• M11: 16,622,268 km (0.109 R)
• M12: 18,260,066 km (0.095 R)
• M13: 20,141,409 km (0.104 R)
• M14: 20,772,712 km (0.053 R)
• M15: 23,277,429 km (0.115 R)
• M16: 25,649,153 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686.5

Radius: 7.2

Gravity: 13.24 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.27 AU - 6.63 AU

Year: 9678 Days

Day: 21 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,355,615 km

• M1: 89,609 km (0.065 R)
• M2: 353,799 km (0.046 R)
• M3: 875,447 km (0.05 R)
• M4: 1,304,344 km (0.085 R)
• M5: 1,850,675 km (0.092 R)
• M6: 2,256,983 km (0.107 R)
• M7: 2,976,549 km (0.11 R)
• M8: 3,201,394 km (0.106 R)
• M9: 3,560,130 km (0.088 R)
• M10: 3,788,117 km (0.102 R)
• M11: 4,301,537 km (0.117 R)
• M12: 4,619,582 km (0.118 R)
• M13: 4,860,584 km (0.06 R)
• M14: 5,302,646 km (0.091 R)
• M15: 6,790,846 km (0.119 R)
• M16: 7,714,463 km (0.071 R)
• M17: 8,449,138 km (0.079 R)
• M18: 11,416,711 km (0.117 R)
• M19: 14,178,587 km (0.083 R)
• M20: 16,019,838 km (0.094 R)
• M21: 18,538,467 km (0.06 R)
• M22: 25,262,144 km (0.1 R)
• M23: 32,891,186 km (0.092 R)
• M24: 33,448,438 km (0.072 R)
• M25: 36,685,736 km (0.117 R)
• M26: 41,275,997 km (0.027 R)
• M27: 42,711,090 km (0.103 R)
• M28: 43,374,257 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.6

Radius: 7.3

Gravity: 13.52 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.85 AU - 9.95 AU

Year: 19219 Days

Day: 19.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 75,355,615 km

• M1: 90,806 km (0.081 R)
• M2: 365,617 km (0.086 R)
• M3: 739,163 km (0.091 R)
• M4: 1,413,700 km (0.093 R)
• M5: 1,778,719 km (0.032 R)
• M6: 2,102,748 km (0.069 R)
• M7: 2,534,038 km (0.08 R)
• M8: 2,795,535 km (0.091 R)
• M9: 3,101,463 km (0.093 R)
• M10: 4,286,278 km (0.065 R)
• M11: 6,995,047 km (0.096 R)
• M12: 7,756,350 km (0.117 R)
• M13: 9,386,369 km (0.101 R)
• M14: 11,295,986 km (0.116 R)
• M15: 12,888,156 km (0.075 R)
• M16: 14,250,544 km (0.106 R)
• M17: 19,180,691 km (0.058 R)
• M18: 19,913,571 km (0.098 R)
• M19: 23,965,878 km (0.095 R)
• M20: 29,611,403 km (0.098 R)
• M21: 31,716,245 km (0.063 R)
• M22: 33,260,843 km (0.116 R)
• M23: 35,533,833 km (0.115 R)
• M24: 39,794,081 km (0.107 R)
• M25: 45,987,283 km (0.064 R)
• M26: 48,972,359 km (0.044 R)
• M27: 51,032,770 km (0.036 R)
• M28: 54,412,037 km (0.116 R)
• M29: 58,127,150 km (0.093 R)
• M30: 63,809,326 km (0.065 R)
• M31: 64,824,946 km (0.102 R)
• M32: 67,306,476 km (0.103 R)
• M33: 68,358,897 km (0.049 R)
• M34: 70,929,437 km (0.094 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 19,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit