🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.52 AU - 0.62 AU

Year: 278 Days

Day: 39.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,887,314 km

• M1: 131,796 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.2

Radius: 10.9

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.83 AU - 1.25 AU

Year: 685 Days

Day: 6.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,887,314 km

• M1: 135,536 km (0.06 R)
• M2: 598,840 km (0.106 R)
• M3: 1,162,974 km (0.077 R)
• M4: 1,571,675 km (0.091 R)
• M5: 2,090,630 km (0.054 R)
• M6: 2,579,217 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.3

Radius: 14.7

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.99 AU - 1.15 AU

Year: 715 Days

Day: 10.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,887,314 km

• M1: 183,557 km (0.064 R)
• M2: 644,318 km (0.091 R)
• M3: 1,125,574 km (0.097 R)
• M4: 1,626,129 km (0.071 R)
• M5: 2,158,248 km (0.087 R)
• M6: 2,843,108 km (0.092 R)
• M7: 3,713,468 km (0.106 R)
• M8: 4,307,521 km (0.09 R)
• M9: 5,162,024 km (0.068 R)
• M10: 5,707,907 km (0.117 R)
• M11: 6,983,229 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.2

Radius: 8.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.96 AU - 2.48 AU

Year: 2136 Days

Day: 10.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,887,314 km

• M1: 109,506 km (0.059 R)
• M2: 391,198 km (0.068 R)
• M3: 718,668 km (0.052 R)
• M4: 1,101,190 km (0.119 R)
• M5: 1,559,109 km (0.091 R)
• M6: 2,029,146 km (0.118 R)
• M7: 2,363,497 km (0.045 R)
• M8: 2,833,234 km (0.112 R)
• M9: 6,110,624 km (0.102 R)
• M10: 7,184,438 km (0.076 R)
• M11: 7,916,719 km (0.114 R)
• M12: 9,024,192 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.1

Radius: 12.3

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.91 AU - 2.85 AU

Year: 2371 Days

Day: 12.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,887,314 km

• M1: 153,188 km (0.086 R)
• M2: 604,824 km (0.09 R)
• M3: 1,117,496 km (0.038 R)
• M4: 1,632,412 km (0.062 R)
• M5: 2,129,376 km (0.065 R)
• M6: 2,799,874 km (0.087 R)
• M7: 4,240,202 km (0.092 R)
• M8: 5,681,578 km (0.046 R)
• M9: 6,202,777 km (0.119 R)
• M10: 7,427,385 km (0.11 R)
• M11: 8,646,009 km (0.109 R)
• M12: 9,303,192 km (0.111 R)
• M13: 10,496,834 km (0.107 R)
• M14: 12,068,958 km (0.097 R)
• M15: 13,487,445 km (0.088 R)
• M16: 14,282,109 km (0.106 R)
• M17: 15,107,590 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.7

Radius: 8.1

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.33 AU - 3.77 AU

Year: 3439 Days

Day: 7 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,887,314 km

• M1: 100,679 km (0.107 R)
• M2: 1,401,882 km (0.112 R)
• M3: 1,847,982 km (0.11 R)
• M4: 2,957,550 km (0.107 R)
• M5: 3,231,613 km (0.102 R)
• M6: 4,221,203 km (0.042 R)
• M7: 5,864,087 km (0.103 R)
• M8: 8,629,852 km (0.053 R)
• M9: 9,301,098 km (0.112 R)
• M10: 9,668,062 km (0.106 R)
• M11: 10,236,683 km (0.057 R)
• M12: 11,274,743 km (0.117 R)
• M13: 11,692,121 km (0.09 R)
• M14: 16,558,240 km (0.095 R)
• M15: 17,261,949 km (0.033 R)

Asteroid Belt

Center: 3.8 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.1

Radius: 10.5

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.77 AU - 5.33 AU

Year: 6267 Days

Day: 14.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,887,314 km

• M1: 130,749 km (0.081 R)
• M2: 464,950 km (0.085 R)
• M3: 1,046,138 km (0.094 R)
• M4: 1,417,889 km (0.103 R)
• M5: 2,121,447 km (0.113 R)
• M6: 2,508,607 km (0.115 R)
• M7: 3,630,591 km (0.107 R)
• M8: 6,380,200 km (0.104 R)
• M9: 6,761,225 km (0.112 R)
• M10: 12,875,141 km (0.079 R)
• M11: 13,883,879 km (0.098 R)
• M12: 16,058,135 km (0.084 R)
• M13: 17,359,487 km (0.052 R)
• M14: 19,731,062 km (0.116 R)
• M15: 20,843,023 km (0.082 R)
• M16: 26,501,712 km (0.113 R)
• M17: 34,569,375 km (0.106 R)
• M18: 35,101,794 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.7

Radius: 7.5

Gravity: 12.44 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 8.28 AU - 9.66 AU

Year: 17346 Days

Day: 15.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,887,314 km

• M1: 93,349 km (0.105 R)
• M2: 886,068 km (0.07 R)
• M3: 1,991,297 km (0.091 R)
• M4: 2,248,007 km (0.102 R)
• M5: 3,051,797 km (0.068 R)
• M6: 4,415,232 km (0.12 R)
• M7: 6,520,373 km (0.077 R)
• M8: 6,779,626 km (0.112 R)
• M9: 7,227,223 km (0.088 R)
• M10: 8,483,546 km (0.044 R)
• M11: 10,513,589 km (0.115 R)
• M12: 10,810,690 km (0.102 R)
• M13: 11,236,146 km (0.034 R)
• M14: 12,315,794 km (0.098 R)
• M15: 13,255,568 km (0.085 R)
• M16: 13,602,486 km (0.119 R)
• M17: 13,884,478 km (0.119 R)
• M18: 15,201,687 km (0.059 R)
• M19: 18,855,914 km (0.085 R)
• M20: 22,267,942 km (0.113 R)
• M21: 22,956,691 km (0.118 R)
• M22: 25,962,411 km (0.043 R)
• M23: 27,503,120 km (0.086 R)
• M24: 29,103,817 km (0.085 R)
• M25: 29,337,489 km (0.076 R)
• M26: 34,668,858 km (0.077 R)
• M27: 36,943,493 km (0.108 R)
• M28: 37,217,557 km (0.109 R)
• M29: 42,834,957 km (0.09 R)
• M30: 48,662,991 km (0.086 R)
• M31: 50,492,573 km (0.091 R)
• M32: 56,982,427 km (0.099 R)
• M33: 58,455,218 km (0.119 R)
• M34: 62,247,973 km (0.114 R)
• M35: 64,006,945 km (0.118 R)
• M36: 64,600,549 km (0.042 R)
• M37: 65,397,756 km (0.07 R)
• M38: 66,808,614 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 177.9

Radius: 3.6

Gravity: 13.73 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.25 AU - 11.79 AU

Year: 18966 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,887,314 km

• M1: 83,625 km (0.105 R)
• M2: 304,282 km (0.11 R)
• M3: 472,131 km (0.102 R)
• M4: 1,622,239 km (0.11 R)
• M5: 1,917,396 km (0.104 R)
• M6: 3,294,744 km (0.108 R)
• M7: 5,030,079 km (0.116 R)
• M8: 5,286,789 km (0.033 R)
• M9: 6,857,417 km (0.117 R)
• M10: 7,173,068 km (0.093 R)
• M11: 9,320,845 km (0.076 R)
• M12: 12,782,240 km (0.093 R)
• M13: 19,323,557 km (0.065 R)
• M14: 24,464,937 km (0.119 R)
• M15: 27,396,157 km (0.084 R)
• M16: 30,977,231 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.3

Radius: 5.4

Gravity: 16.95 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.57 AU - 11.63 AU

Year: 20725 Days

Day: 21.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 69,887,314 km

• M1: 67,319 km (0.099 R)
• M2: 246,687 km (0.089 R)
• M3: 422,464 km (0.096 R)
• M4: 677,529 km (0.107 R)
• M5: 894,745 km (0.118 R)
• M6: 1,280,259 km (0.111 R)
• M7: 1,487,751 km (0.109 R)
• M8: 1,952,252 km (0.119 R)
• M9: 2,763,222 km (0.093 R)
• M10: 3,112,234 km (0.08 R)
• M11: 3,434,468 km (0.094 R)
• M12: 3,898,371 km (0.086 R)
• M13: 5,021,402 km (0.102 R)
• M14: 5,579,701 km (0.096 R)
• M15: 6,429,567 km (0.095 R)
• M16: 7,549,905 km (0.061 R)
• M17: 8,081,875 km (0.113 R)
• M18: 8,794,709 km (0.086 R)
• M19: 10,758,780 km (0.119 R)
• M20: 18,977,238 km (0.091 R)
• M21: 21,827,676 km (0.068 R)
• M22: 22,508,645 km (0.107 R)
• M23: 25,802,940 km (0.028 R)
• M24: 28,474,758 km (0.04 R)
• M25: 29,996,318 km (0.045 R)
• M26: 32,191,367 km (0.114 R)
• M27: 33,328,012 km (0.091 R)
• M28: 36,898,315 km (0.064 R)
• M29: 37,172,378 km (0.097 R)
• M30: 39,845,243 km (0.097 R)
• M31: 41,302,177 km (0.113 R)
• M32: 41,597,782 km (0.117 R)
• M33: 43,096,903 km (0.083 R)
• M34: 48,627,536 km (0.093 R)
• M35: 49,620,716 km (0.075 R)
• M36: 53,378,465 km (0.117 R)
• M37: 55,326,529 km (0.081 R)
• M38: 58,243,986 km (0.045 R)
• M39: 58,988,984 km (0.109 R)
• M40: 60,308,138 km (0.095 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 10,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit