🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.57 AU - 0.77 AU

Year: 349 Days

Day: 32.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212

Radius: 11.8

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.77 AU - 0.83 AU

Year: 455 Days

Day: 7.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,785,092 km

• M1: 146,756 km (0.118 R)
• M2: 609,911 km (0.049 R)
• M3: 1,129,015 km (0.067 R)
• M4: 1,709,904 km (0.07 R)
• M5: 2,134,163 km (0.052 R)
• M6: 2,551,242 km (0.113 R)
• M7: 2,918,505 km (0.078 R)
• M8: 3,639,716 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.5

Radius: 13.6

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.88 AU - 1.3 AU

Year: 724 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,785,092 km

• M1: 169,195 km (0.098 R)
• M2: 918,980 km (0.1 R)
• M3: 1,460,374 km (0.042 R)
• M4: 1,961,976 km (0.114 R)
• M5: 2,445,776 km (0.099 R)
• M6: 2,885,294 km (0.105 R)
• M7: 3,433,122 km (0.059 R)
• M8: 4,915,786 km (0.045 R)
• M9: 5,488,596 km (0.087 R)
• M10: 6,126,332 km (0.045 R)
• M11: 6,593,077 km (0.068 R)
• M12: 7,291,251 km (0.091 R)
• M13: 7,718,801 km (0.12 R)
• M14: 8,417,573 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.2

Radius: 8.7

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.31 AU - 2.95 AU

Year: 2712 Days

Day: 5.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,785,092 km

• M1: 109,356 km (0.061 R)
• M2: 449,093 km (0.076 R)
• M3: 747,541 km (0.07 R)
• M4: 1,376,151 km (0.042 R)
• M5: 1,747,154 km (0.115 R)
• M6: 2,157,201 km (0.025 R)
• M7: 2,661,346 km (0.083 R)
• M8: 3,085,157 km (0.112 R)
• M9: 3,785,275 km (0.094 R)
• M10: 4,475,669 km (0.119 R)
• M11: 5,198,376 km (0.076 R)
• M12: 5,626,526 km (0.103 R)
• M13: 6,132,765 km (0.104 R)
• M14: 6,582,306 km (0.049 R)
• M15: 7,083,908 km (0.073 R)
• M16: 7,965,339 km (0.104 R)
• M17: 8,432,682 km (0.072 R)
• M18: 9,060,245 km (0.085 R)
• M19: 9,831,273 km (0.091 R)
• M20: 12,363,666 km (0.05 R)
• M21: 13,922,475 km (0.111 R)
• M22: 14,749,153 km (0.072 R)
• M23: 16,181,553 km (0.118 R)
• M24: 16,661,014 km (0.119 R)
• M25: 17,260,004 km (0.086 R)
• M26: 17,592,710 km (0.074 R)
• M27: 19,084,051 km (0.11 R)
• M28: 20,348,602 km (0.095 R)
• M29: 20,844,818 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 13.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.97 AU - 4.35 AU

Year: 5395 Days

Day: 7.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,785,092 km

• M1: 166,652 km (0.036 R)
• M2: 913,445 km (0.1 R)
• M3: 1,498,522 km (0.084 R)
• M4: 2,600,161 km (0.091 R)
• M5: 3,064,662 km (0.099 R)
• M6: 3,887,450 km (0.033 R)
• M7: 4,999,561 km (0.088 R)
• M8: 6,084,594 km (0.089 R)
• M9: 6,638,106 km (0.077 R)
• M10: 7,613,634 km (0.059 R)
• M11: 9,810,030 km (0.09 R)
• M12: 11,160,450 km (0.091 R)
• M13: 17,011,372 km (0.117 R)
• M14: 18,894,361 km (0.083 R)
• M15: 19,448,172 km (0.051 R)
• M16: 21,906,963 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.5

Radius: 9.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.21 AU - 5.29 AU

Year: 6582 Days

Day: 13.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,785,092 km

• M1: 119,379 km (0.066 R)
• M2: 947,104 km (0.043 R)
• M3: 2,757,837 km (0.082 R)
• M4: 4,529,824 km (0.094 R)
• M5: 5,584,339 km (0.078 R)
• M6: 6,169,416 km (0.076 R)
• M7: 6,903,044 km (0.118 R)
• M8: 8,733,524 km (0.104 R)
• M9: 9,089,267 km (0.08 R)
• M10: 9,692,296 km (0.079 R)
• M11: 10,357,558 km (0.037 R)
• M12: 13,326,178 km (0.119 R)
• M13: 14,192,948 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775

Radius: 14.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.9 AU - 5.38 AU

Year: 7409 Days

Day: 10.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,785,092 km

• M1: 175,628 km (0.092 R)
• M2: 614,847 km (0.102 R)
• M3: 1,353,562 km (0.117 R)
• M4: 2,075,222 km (0.107 R)
• M5: 3,257,494 km (0.078 R)
• M6: 3,739,648 km (0.101 R)
• M7: 4,792,368 km (0.084 R)
• M8: 5,545,443 km (0.116 R)
• M9: 7,403,599 km (0.109 R)
• M10: 13,845,582 km (0.081 R)
• M11: 15,374,472 km (0.099 R)
• M12: 18,051,077 km (0.119 R)
• M13: 19,130,576 km (0.097 R)
• M14: 21,024,784 km (0.073 R)
• M15: 23,797,580 km (0.113 R)
• M16: 35,531,738 km (0.104 R)
• M17: 36,090,636 km (0.041 R)
• M18: 36,541,823 km (0.103 R)
• M19: 38,034,660 km (0.06 R)
• M20: 38,619,438 km (0.11 R)
• M21: 39,448,360 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.6

Radius: 3.4

Gravity: 79.38 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.17 AU - 7.71 AU

Year: 11624 Days

Day: 21 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 76,785,092 km

• M1: 44,580 km (0.052 R)
• M2: 189,092 km (0.099 R)
• M3: 468,541 km (0.1 R)
• M4: 743,352 km (0.095 R)
• M5: 1,033,123 km (0.067 R)
• M6: 1,153,400 km (0.097 R)
• M7: 1,296,415 km (0.095 R)
• M8: 1,764,507 km (0.102 R)
• M9: 2,064,750 km (0.115 R)
• M10: 4,715,923 km (0.052 R)
• M11: 6,338,013 km (0.113 R)
• M12: 6,538,474 km (0.07 R)
• M13: 8,489,230 km (0.06 R)
• M14: 11,024,316 km (0.055 R)
• M15: 11,669,083 km (0.078 R)
• M16: 11,970,223 km (0.077 R)
• M17: 14,988,959 km (0.098 R)
• M18: 15,130,628 km (0.117 R)
• M19: 15,273,195 km (0.058 R)
• M20: 18,235,532 km (0.095 R)
• M21: 20,583,919 km (0.039 R)
• M22: 21,739,712 km (0.074 R)
• M23: 22,750,844 km (0.074 R)
• M24: 26,278,960 km (0.112 R)
• M25: 28,172,271 km (0.119 R)
• M26: 30,493,880 km (0.077 R)
• M27: 33,661,765 km (0.036 R)
• M28: 37,042,228 km (0.104 R)
• M29: 37,954,177 km (0.069 R)
• M30: 40,917,561 km (0.103 R)
• M31: 42,455,427 km (0.102 R)
• M32: 43,597,756 km (0.08 R)
• M33: 47,604,586 km (0.081 R)
• M34: 50,725,796 km (0.106 R)
• M35: 54,480,702 km (0.12 R)
• M36: 55,998,971 km (0.052 R)
• M37: 56,169,513 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.7

Radius: 5

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 9.35 AU - 9.59 AU

Year: 18529 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,785,092 km

• M1: 68,366 km (0.118 R)
• M2: 1,211,294 km (0.09 R)
• M3: 3,316,734 km (0.059 R)
• M4: 3,549,658 km (0.093 R)
• M5: 5,713,442 km (0.046 R)
• M6: 8,305,225 km (0.102 R)
• M7: 9,756,773 km (0.074 R)
• M8: 10,276,027 km (0.086 R)
• M9: 10,729,608 km (0.108 R)
• M10: 10,982,578 km (0.112 R)
• M11: 12,261,789 km (0.102 R)
• M12: 15,270,651 km (0.026 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.1

Radius: 5.4

Gravity: 23.32 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.58 AU - 12.58 AU

Year: 20348 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,785,092 km

• M1: 67,618 km (0.097 R)
• M2: 787,782 km (0.042 R)
• M3: 1,560,455 km (0.119 R)
• M4: 1,787,545 km (0.09 R)
• M5: 2,977,297 km (0.095 R)
• M6: 4,583,080 km (0.119 R)
• M7: 5,393,452 km (0.104 R)
• M8: 6,469,510 km (0.098 R)
• M9: 8,604,720 km (0.111 R)
• M10: 10,916,605 km (0.081 R)
• M11: 12,080,477 km (0.086 R)
• M12: 16,555,548 km (0.114 R)
• M13: 31,155,103 km (0.107 R)
• M14: 32,174,313 km (0.075 R)
• M15: 32,432,519 km (0.067 R)
• M16: 33,084,167 km (0.055 R)
• M17: 34,955,188 km (0.109 R)
• M18: 35,640,047 km (0.113 R)
• M19: 42,677,281 km (0.088 R)
• M20: 60,785,804 km (0.082 R)
• M21: 61,378,510 km (0.11 R)
• M22: 73,161,287 km (0.056 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: 494 - 19,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit