🌌 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 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.61 AU - 0.63 AU

Year: 320 Days

Day: 32.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,983,377 km

• M1: 494,122 km (0.093 R)
• M2: 552,465 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.4

Radius: 11

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.76 AU - 0.9 AU

Year: 496 Days

Day: 13.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,983,377 km

• M1: 136,732 km (0.066 R)
• M2: 530,324 km (0.096 R)
• M3: 1,005,447 km (0.11 R)
• M4: 1,478,775 km (0.068 R)
• M5: 2,152,863 km (0.105 R)
• M6: 2,561,564 km (0.06 R)
• M7: 2,941,393 km (0.109 R)
• M8: 3,359,071 km (0.115 R)
• M9: 4,587,867 km (0.119 R)
• M10: 5,068,974 km (0.116 R)
• M11: 6,170,463 km (0.114 R)
• M12: 6,557,922 km (0.043 R)
• M13: 6,920,547 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.9

Radius: 9.8

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.82 AU - 1.1 AU

Year: 617 Days

Day: 10.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,983,377 km

• M1: 121,922 km (0.106 R)
• M2: 450,738 km (0.109 R)
• M3: 800,049 km (0.073 R)
• M4: 1,209,050 km (0.103 R)
• M5: 1,579,754 km (0.116 R)
• M6: 2,002,218 km (0.069 R)
• M7: 2,397,156 km (0.044 R)
• M8: 3,231,763 km (0.107 R)
• M9: 3,618,174 km (0.115 R)
• M10: 4,289,719 km (0.106 R)
• M11: 4,612,402 km (0.11 R)
• M12: 5,306,835 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.4

Radius: 10.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.94 AU - 2.28 AU

Year: 2011 Days

Day: 14.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,983,377 km

• M1: 131,796 km (0.07 R)
• M2: 517,609 km (0.1 R)
• M3: 896,390 km (0.036 R)
• M4: 1,514,828 km (0.116 R)
• M5: 2,377,110 km (0.078 R)
• M6: 3,817,738 km (0.114 R)
• M7: 6,137,552 km (0.086 R)
• M8: 6,565,402 km (0.105 R)
• M9: 7,556,637 km (0.117 R)
• M10: 9,743,908 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.6

Radius: 14.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.02 AU - 2.42 AU

Year: 2170 Days

Day: 7.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,983,377 km

• M1: 179,069 km (0.115 R)
• M2: 643,121 km (0.1 R)
• M3: 1,229,694 km (0.103 R)
• M4: 1,693,597 km (0.116 R)
• M5: 2,382,944 km (0.053 R)
• M6: 2,952,015 km (0.097 R)
• M7: 3,579,428 km (0.079 R)
• M8: 4,151,491 km (0.086 R)
• M9: 4,863,128 km (0.101 R)
• M10: 5,676,940 km (0.059 R)
• M11: 6,198,438 km (0.07 R)
• M12: 6,776,634 km (0.041 R)
• M13: 7,312,045 km (0.096 R)
• M14: 7,766,074 km (0.047 R)
• M15: 8,613,546 km (0.083 R)
• M16: 10,260,918 km (0.071 R)
• M17: 10,900,000 km (0.093 R)
• M18: 12,633,391 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.5

Radius: 11

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.21 AU - 2.67 AU

Year: 2500 Days

Day: 13.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 110.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,983,377 km

• M1: 140,323 km (0.092 R)
• M2: 571,763 km (0.1 R)
• M3: 1,137,243 km (0.11 R)
• M4: 2,253,542 km (0.053 R)
• M5: 2,782,969 km (0.118 R)
• M6: 3,215,756 km (0.047 R)
• M7: 3,578,979 km (0.04 R)
• M8: 4,498,558 km (0.119 R)
• M9: 5,645,824 km (0.096 R)
• M10: 6,177,644 km (0.031 R)
• M11: 7,219,444 km (0.102 R)
• M12: 8,785,733 km (0.119 R)
• M13: 9,318,751 km (0.034 R)
• M14: 9,835,611 km (0.091 R)
• M15: 10,607,087 km (0.048 R)
• M16: 11,294,041 km (0.055 R)
• M17: 12,712,229 km (0.108 R)
• M18: 14,932,261 km (0.104 R)
• M19: 16,853,098 km (0.086 R)
• M20: 17,344,228 km (0.109 R)
• M21: 18,297,764 km (0.077 R)
• M22: 18,642,587 km (0.078 R)
• M23: 19,404,639 km (0.098 R)
• M24: 19,763,375 km (0.098 R)
• M25: 20,187,335 km (0.093 R)
• M26: 20,741,446 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.1

Radius: 11.8

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.86 AU - 5.82 AU

Year: 6985 Days

Day: 10.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,983,377 km

• M1: 146,756 km (0.065 R)
• M2: 638,185 km (0.032 R)
• M3: 1,428,510 km (0.084 R)
• M4: 2,313,082 km (0.108 R)
• M5: 3,446,735 km (0.093 R)
• M6: 3,821,328 km (0.118 R)
• M7: 4,472,677 km (0.098 R)
• M8: 5,310,425 km (0.104 R)
• M9: 5,751,889 km (0.09 R)
• M10: 6,217,886 km (0.108 R)
• M11: 7,368,294 km (0.066 R)
• M12: 8,032,209 km (0.116 R)
• M13: 9,395,045 km (0.084 R)
• M14: 9,911,009 km (0.07 R)
• M15: 11,476,700 km (0.089 R)
• M16: 14,181,429 km (0.085 R)
• M17: 17,222,006 km (0.037 R)
• M18: 17,865,576 km (0.07 R)
• M19: 18,725,913 km (0.104 R)
• M20: 22,219,024 km (0.052 R)
• M21: 24,802,579 km (0.102 R)
• M22: 26,632,311 km (0.105 R)
• M23: 32,562,370 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.6

Radius: 7.9

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.52 AU - 7.06 AU

Year: 10349 Days

Day: 20.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 139.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 75,983,377 km

• M1: 98,286 km (0.074 R)
• M2: 476,768 km (0.047 R)
• M3: 781,200 km (0.077 R)
• M4: 1,065,586 km (0.073 R)
• M5: 1,991,596 km (0.099 R)
• M6: 2,610,483 km (0.045 R)
• M7: 4,672,091 km (0.098 R)
• M8: 4,997,317 km (0.107 R)
• M9: 6,560,465 km (0.083 R)
• M10: 6,893,470 km (0.086 R)
• M11: 8,085,466 km (0.086 R)
• M12: 10,025,451 km (0.112 R)
• M13: 10,974,350 km (0.058 R)
• M14: 12,201,502 km (0.099 R)
• M15: 14,925,828 km (0.116 R)
• M16: 15,567,603 km (0.097 R)
• M17: 18,758,975 km (0.049 R)
• M18: 23,543,563 km (0.044 R)
• M19: 23,802,218 km (0.096 R)
• M20: 24,589,252 km (0.112 R)
• M21: 27,338,712 km (0.082 R)
• M22: 31,210,604 km (0.09 R)
• M23: 31,627,234 km (0.109 R)
• M24: 37,387,051 km (0.093 R)
• M25: 39,533,182 km (0.059 R)
• M26: 41,886,357 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 771.4

Radius: 7.1

Gravity: 15.3 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.75 AU - 9.89 AU

Year: 15743 Days

Day: 21.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 175 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 75,983,377 km

• M1: 88,263 km (0.107 R)
• M2: 359,184 km (0.071 R)
• M3: 796,160 km (0.112 R)
• M4: 1,567,786 km (0.098 R)
• M5: 1,981,873 km (0.104 R)
• M6: 2,690,966 km (0.034 R)
• M7: 3,180,750 km (0.086 R)
• M8: 3,642,559 km (0.044 R)
• M9: 5,335,707 km (0.051 R)
• M10: 6,821,364 km (0.099 R)
• M11: 7,777,593 km (0.1 R)
• M12: 10,065,842 km (0.046 R)
• M13: 12,180,259 km (0.109 R)
• M14: 12,504,587 km (0.084 R)
• M15: 12,901,620 km (0.111 R)
• M16: 14,142,983 km (0.03 R)
• M17: 16,781,440 km (0.056 R)
• M18: 17,102,328 km (0.048 R)
• M19: 17,591,513 km (0.114 R)
• M20: 19,202,383 km (0.074 R)
• M21: 19,642,051 km (0.107 R)
• M22: 22,326,136 km (0.116 R)
• M23: 22,910,465 km (0.069 R)
• M24: 23,604,898 km (0.08 R)
• M25: 24,828,160 km (0.108 R)
• M26: 28,522,480 km (0.074 R)
• M27: 31,827,545 km (0.066 R)
• M28: 32,072,886 km (0.094 R)
• M29: 36,306,655 km (0.117 R)
• M30: 36,574,585 km (0.087 R)
• M31: 39,893,863 km (0.109 R)
• M32: 44,471,109 km (0.101 R)
• M33: 45,551,056 km (0.08 R)
• M34: 48,570,389 km (0.117 R)
• M35: 51,382,680 km (0.039 R)
• M36: 52,914,562 km (0.076 R)
• M37: 57,692,718 km (0.029 R)
• M38: 61,222,330 km (0.066 R)
• M39: 62,174,670 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.2

Radius: 7.8

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 9.1 AU - 10.14 AU

Year: 19574 Days

Day: 23.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,983,377 km

• M1: 97,538 km (0.097 R)
• M2: 347,965 km (0.032 R)
• M3: 677,230 km (0.106 R)
• M4: 2,446,374 km (0.086 R)
• M5: 3,267,666 km (0.063 R)
• M6: 3,909,740 km (0.052 R)
• M7: 12,381,318 km (0.072 R)
• M8: 18,008,442 km (0.101 R)
• M9: 19,072,233 km (0.111 R)
• M10: 21,814,960 km (0.11 R)
• M11: 23,023,112 km (0.094 R)
• M12: 23,748,213 km (0.086 R)
• M13: 26,462,068 km (0.042 R)
• M14: 35,148,169 km (0.067 R)
• M15: 50,413,884 km (0.116 R)
• M16: 65,571,888 km (0.119 R)
• M17: 72,840,550 km (0.1 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: 221 - 19,445 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit