🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.6

Radius: 13.1

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.58 AU - 0.64 AU

Year: 318 Days

Day: 6.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,532,757 km

• M1: 164,857 km (0.108 R)
• M2: 626,965 km (0.087 R)
• M3: 1,105,379 km (0.094 R)
• M4: 1,566,140 km (0.11 R)
• M5: 2,196,097 km (0.09 R)
• M6: 2,771,151 km (0.082 R)
• M7: 3,181,648 km (0.118 R)
• M8: 4,054,401 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.9

Radius: 9.4

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.82 AU - 0.96 AU

Year: 560 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,532,757 km

• M1: 118,930 km (0.064 R)
• M2: 419,622 km (0.099 R)
• M3: 845,527 km (0.111 R)
• M4: 1,175,091 km (0.059 R)
• M5: 1,568,534 km (0.104 R)
• M6: 2,086,142 km (0.114 R)
• M7: 2,401,195 km (0.064 R)
• M8: 2,793,890 km (0.119 R)
• M9: 3,153,673 km (0.051 R)
• M10: 3,639,866 km (0.104 R)
• M11: 4,100,178 km (0.093 R)
• M12: 4,647,557 km (0.117 R)
• M13: 6,503,468 km (0.05 R)
• M14: 7,248,615 km (0.098 R)
• M15: 7,699,354 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.2

Radius: 13.8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.41 AU - 1.99 AU

Year: 1478 Days

Day: 12 Hours

Environment

Temp: -193 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,532,757 km

• M1: 171,888 km (0.055 R)
• M2: 631,303 km (0.112 R)
• M3: 1,201,121 km (0.067 R)
• M4: 1,779,467 km (0.095 R)
• M5: 2,384,889 km (0.091 R)
• M6: 2,876,617 km (0.12 R)
• M7: 3,420,855 km (0.052 R)
• M8: 4,313,206 km (0.115 R)
• M9: 5,502,210 km (0.036 R)
• M10: 6,300,614 km (0.096 R)
• M11: 8,184,051 km (0.074 R)
• M12: 9,045,884 km (0.043 R)
• M13: 10,950,714 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210

Radius: 10.4

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.19 AU - 4.75 AU

Year: 6302 Days

Day: 9.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,532,757 km

• M1: 129,402 km (0.086 R)
• M2: 489,783 km (0.107 R)
• M3: 1,335,909 km (0.1 R)
• M4: 2,114,716 km (0.092 R)
• M5: 2,489,757 km (0.061 R)
• M6: 3,394,525 km (0.109 R)
• M7: 4,621,228 km (0.092 R)
• M8: 5,652,406 km (0.088 R)
• M9: 6,009,496 km (0.108 R)
• M10: 6,558,520 km (0.118 R)
• M11: 7,558,881 km (0.117 R)
• M12: 8,130,046 km (0.11 R)
• M13: 8,985,297 km (0.036 R)
• M14: 9,626,623 km (0.07 R)
• M15: 10,583,750 km (0.118 R)
• M16: 11,559,278 km (0.079 R)
• M17: 12,593,598 km (0.07 R)
• M18: 12,967,443 km (0.113 R)
• M19: 15,528,259 km (0.118 R)
• M20: 17,527,186 km (0.091 R)
• M21: 18,289,536 km (0.085 R)
• M22: 20,903,759 km (0.052 R)
• M23: 22,848,083 km (0.077 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.3

Radius: 6.8

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5 AU - 6.5 AU

Year: 9195 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,532,757 km

• M1: 84,672 km (0.104 R)
• M2: 429,944 km (0.089 R)
• M3: 781,499 km (0.082 R)
• M4: 1,100,442 km (0.114 R)
• M5: 1,558,062 km (0.119 R)
• M6: 1,892,413 km (0.058 R)
• M7: 3,037,136 km (0.062 R)
• M8: 3,857,531 km (0.043 R)
• M9: 4,585,025 km (0.101 R)
• M10: 8,085,466 km (0.109 R)
• M11: 8,468,436 km (0.094 R)
• M12: 9,270,580 km (0.043 R)
• M13: 12,647,752 km (0.113 R)
• M14: 13,994,731 km (0.083 R)
• M15: 17,317,898 km (0.108 R)
• M16: 19,049,643 km (0.078 R)
• M17: 23,705,129 km (0.102 R)
• M18: 25,201,108 km (0.063 R)
• M19: 27,704,927 km (0.088 R)
• M20: 31,398,499 km (0.119 R)
• M21: 33,200,555 km (0.097 R)
• M22: 34,847,029 km (0.105 R)
• M23: 36,202,685 km (0.082 R)
• M24: 40,357,167 km (0.12 R)
• M25: 42,104,321 km (0.035 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.4

Radius: 5.8

Gravity: 26.94 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.85 AU - 8.69 AU

Year: 13072 Days

Day: 20.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 87,532,757 km

• M1: 72,705 km (0.084 R)
• M2: 255,812 km (0.101 R)
• M3: 438,621 km (0.026 R)
• M4: 836,701 km (0.112 R)
• M5: 1,189,453 km (0.072 R)
• M6: 1,962,425 km (0.063 R)
• M7: 2,150,619 km (0.081 R)
• M8: 2,697,698 km (0.118 R)
• M9: 3,439,255 km (0.039 R)
• M10: 3,742,640 km (0.066 R)
• M11: 5,103,232 km (0.096 R)
• M12: 5,425,017 km (0.097 R)
• M13: 9,533,723 km (0.033 R)
• M14: 10,527,053 km (0.115 R)
• M15: 11,709,624 km (0.093 R)
• M16: 14,265,503 km (0.083 R)
• M17: 18,303,000 km (0.077 R)
• M18: 19,657,011 km (0.083 R)
• M19: 20,181,650 km (0.106 R)
• M20: 21,258,605 km (0.045 R)
• M21: 25,023,535 km (0.043 R)
• M22: 33,591,454 km (0.117 R)
• M23: 34,593,161 km (0.063 R)
• M24: 37,584,071 km (0.027 R)
• M25: 42,025,483 km (0.113 R)
• M26: 42,314,207 km (0.101 R)
• M27: 45,274,000 km (0.042 R)
• M28: 50,944,358 km (0.086 R)
• M29: 51,602,140 km (0.098 R)
• M30: 57,957,805 km (0.101 R)
• M31: 62,160,608 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.1

Radius: 7.8

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.77 AU - 8.89 AU

Year: 14611 Days

Day: 21.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 87,532,757 km

• M1: 97,388 km (0.097 R)
• M2: 360,980 km (0.112 R)
• M3: 888,163 km (0.088 R)
• M4: 1,231,340 km (0.073 R)
• M5: 1,646,025 km (0.059 R)
• M6: 2,094,370 km (0.092 R)
• M7: 2,755,593 km (0.066 R)
• M8: 3,311,498 km (0.076 R)
• M9: 3,685,194 km (0.084 R)
• M10: 6,425,677 km (0.112 R)
• M11: 9,856,405 km (0.111 R)
• M12: 10,128,374 km (0.104 R)
• M13: 11,504,974 km (0.042 R)
• M14: 12,175,920 km (0.098 R)
• M15: 13,067,075 km (0.112 R)
• M16: 15,194,357 km (0.09 R)
• M17: 20,648,695 km (0.104 R)
• M18: 21,365,568 km (0.06 R)
• M19: 22,943,825 km (0.078 R)
• M20: 23,422,539 km (0.086 R)
• M21: 24,898,322 km (0.069 R)
• M22: 25,505,689 km (0.097 R)
• M23: 28,034,192 km (0.103 R)
• M24: 28,912,930 km (0.086 R)
• M25: 30,957,035 km (0.069 R)
• M26: 32,853,039 km (0.033 R)
• M27: 35,457,538 km (0.113 R)
• M28: 43,505,454 km (0.074 R)
• M29: 45,428,984 km (0.099 R)
• M30: 55,386,966 km (0.104 R)
• M31: 56,075,266 km (0.115 R)
• M32: 61,053,584 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.4

Radius: 6.3

Gravity: 12.51 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.35 AU - 10.09 AU

Year: 18669 Days

Day: 23.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,532,757 km

• M1: 78,389 km (0.086 R)
• M2: 387,458 km (0.058 R)
• M3: 1,449,155 km (0.101 R)
• M4: 2,020,768 km (0.081 R)
• M5: 4,637,983 km (0.119 R)
• M6: 5,632,360 km (0.087 R)
• M7: 7,749,020 km (0.08 R)
• M8: 8,575,399 km (0.103 R)
• M9: 12,603,172 km (0.059 R)
• M10: 17,573,711 km (0.067 R)
• M11: 29,612,599 km (0.102 R)
• M12: 30,781,407 km (0.104 R)
• M13: 39,836,866 km (0.04 R)
• M14: 40,118,858 km (0.117 R)
• M15: 41,260,140 km (0.116 R)
• M16: 53,543,471 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889.2

Radius: 3.4

Gravity: 76.92 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.8 AU - 10.56 AU

Year: 21660 Days

Day: 16.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,532,757 km

• M1: 46,675 km (0.032 R)
• M2: 343,477 km (0.1 R)
• M3: 495,319 km (0.093 R)
• M4: 1,134,849 km (0.073 R)
• M5: 1,297,612 km (0.029 R)
• M6: 1,901,838 km (0.079 R)
• M7: 3,361,015 km (0.095 R)
• M8: 5,152,749 km (0.086 R)
• M9: 8,952,984 km (0.116 R)
• M10: 10,978,539 km (0.099 R)
• M11: 12,344,218 km (0.084 R)
• M12: 12,702,355 km (0.072 R)
• M13: 14,598,508 km (0.045 R)
• M14: 15,990,367 km (0.12 R)
• M15: 16,159,712 km (0.115 R)
• M16: 18,102,539 km (0.1 R)
• M17: 19,706,228 km (0.09 R)
• M18: 21,607,916 km (0.077 R)
• M19: 21,814,960 km (0.062 R)
• M20: 23,628,535 km (0.107 R)
• M21: 27,917,805 km (0.098 R)
• M22: 32,291,448 km (0.069 R)
• M23: 33,937,923 km (0.086 R)
• M24: 36,364,849 km (0.115 R)
• M25: 42,851,712 km (0.098 R)
• M26: 43,671,807 km (0.039 R)
• M27: 45,005,622 km (0.111 R)
• M28: 47,230,591 km (0.061 R)
• M29: 47,579,154 km (0.055 R)
• M30: 52,083,695 km (0.092 R)
• M31: 52,829,740 km (0.07 R)
• M32: 65,538,827 km (0.101 R)
• M33: 65,755,445 km (0.063 R)
• M34: 68,392,407 km (0.093 R)
• M35: 75,767,282 km (0.084 R)
• M36: 76,724,858 km (0.086 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 194 - 15,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit