🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.5 AU - 0.52 AU

Year: 232 Days

Day: 36.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.6

Radius: 10.7

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.59 AU - 0.83 AU

Year: 380 Days

Day: 12.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,637,300 km

• M1: 133,142 km (0.068 R)
• M2: 512,672 km (0.109 R)
• M3: 1,251,536 km (0.117 R)
• M4: 1,598,603 km (0.09 R)
• M5: 1,965,267 km (0.09 R)
• M6: 2,397,306 km (0.109 R)
• M7: 2,882,302 km (0.066 R)
• M8: 3,398,415 km (0.115 R)
• M9: 4,242,446 km (0.058 R)
• M10: 4,855,049 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.1

Radius: 10.2

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.77 AU - 0.95 AU

Year: 507 Days

Day: 8.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,637,300 km

• M1: 126,859 km (0.049 R)
• M2: 455,526 km (0.118 R)
• M3: 779,255 km (0.09 R)
• M4: 1,127,220 km (0.091 R)
• M5: 1,957,937 km (0.108 R)
• M6: 2,631,875 km (0.088 R)
• M7: 3,017,688 km (0.067 R)
• M8: 4,511,722 km (0.074 R)
• M9: 5,429,206 km (0.094 R)
• M10: 5,861,394 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.3

Radius: 13.2

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.23 AU - 2.31 AU

Year: 2175 Days

Day: 7.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,637,300 km

• M1: 164,258 km (0.067 R)
• M2: 841,937 km (0.041 R)
• M3: 1,361,041 km (0.089 R)
• M4: 2,547,053 km (0.08 R)
• M5: 3,065,410 km (0.092 R)
• M6: 4,092,848 km (0.089 R)
• M7: 4,531,020 km (0.089 R)
• M8: 5,565,041 km (0.112 R)
• M9: 5,994,087 km (0.113 R)
• M10: 7,289,605 km (0.058 R)
• M11: 8,371,198 km (0.109 R)
• M12: 9,986,855 km (0.085 R)
• M13: 10,688,169 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.4

Radius: 13.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.65 AU - 3.57 AU

Year: 3487 Days

Day: 11.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 73,637,300 km

• M1: 169,195 km (0.117 R)
• M2: 905,965 km (0.082 R)
• M3: 1,367,025 km (0.049 R)
• M4: 1,798,765 km (0.105 R)
• M5: 2,505,016 km (0.05 R)
• M6: 3,429,082 km (0.11 R)
• M7: 3,917,220 km (0.109 R)
• M8: 5,614,408 km (0.071 R)
• M9: 6,475,643 km (0.107 R)
• M10: 7,033,643 km (0.107 R)
• M11: 7,556,488 km (0.107 R)
• M12: 8,140,368 km (0.048 R)
• M13: 9,129,509 km (0.091 R)
• M14: 9,673,148 km (0.102 R)
• M15: 11,435,261 km (0.104 R)
• M16: 12,067,761 km (0.084 R)
• M17: 13,452,289 km (0.048 R)
• M18: 14,004,305 km (0.055 R)
• M19: 15,315,232 km (0.115 R)
• M20: 18,059,455 km (0.068 R)
• M21: 18,608,330 km (0.117 R)
• M22: 22,416,942 km (0.066 R)
• M23: 23,624,945 km (0.067 R)
• M24: 24,950,980 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.2

Radius: 13.9

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.48 AU - 4.88 AU

Year: 5434 Days

Day: 10.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,637,300 km

• M1: 174,132 km (0.118 R)
• M2: 610,808 km (0.086 R)
• M3: 1,126,771 km (0.097 R)
• M4: 1,693,897 km (0.036 R)
• M5: 2,737,491 km (0.037 R)
• M6: 3,361,913 km (0.115 R)
• M7: 3,965,241 km (0.035 R)
• M8: 4,925,659 km (0.089 R)
• M9: 5,914,950 km (0.112 R)
• M10: 6,473,249 km (0.115 R)
• M11: 7,914,176 km (0.108 R)
• M12: 8,828,518 km (0.052 R)
• M13: 11,422,994 km (0.037 R)
• M14: 12,144,056 km (0.027 R)
• M15: 12,641,319 km (0.089 R)
• M16: 14,270,290 km (0.054 R)
• M17: 14,993,596 km (0.096 R)
• M18: 15,858,421 km (0.105 R)
• M19: 18,198,431 km (0.08 R)
• M20: 18,653,358 km (0.033 R)
• M21: 19,995,251 km (0.11 R)
• M22: 20,972,275 km (0.082 R)
• M23: 24,328,952 km (0.108 R)
• M24: 26,923,727 km (0.102 R)
• M25: 27,600,209 km (0.103 R)
• M26: 28,811,353 km (0.074 R)
• M27: 30,420,278 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.7

Radius: 12.7

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.88 AU - 6.1 AU

Year: 8179 Days

Day: 14.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,637,300 km

• M1: 157,975 km (0.102 R)
• M2: 659,427 km (0.116 R)
• M3: 1,275,771 km (0.114 R)
• M4: 1,760,617 km (0.085 R)
• M5: 2,613,924 km (0.091 R)
• M6: 3,340,221 km (0.038 R)
• M7: 4,115,886 km (0.088 R)
• M8: 4,736,867 km (0.104 R)
• M9: 5,195,384 km (0.069 R)
• M10: 6,202,477 km (0.108 R)
• M11: 7,455,958 km (0.095 R)
• M12: 7,951,426 km (0.085 R)
• M13: 11,134,869 km (0.082 R)
• M14: 11,619,117 km (0.102 R)
• M15: 12,061,179 km (0.108 R)
• M16: 14,005,502 km (0.111 R)
• M17: 15,611,735 km (0.055 R)
• M18: 18,958,538 km (0.1 R)
• M19: 19,494,996 km (0.09 R)
• M20: 21,165,107 km (0.071 R)
• M21: 24,068,652 km (0.111 R)
• M22: 25,802,042 km (0.096 R)
• M23: 26,747,052 km (0.038 R)
• M24: 29,926,605 km (0.032 R)
• M25: 30,969,751 km (0.061 R)
• M26: 36,552,594 km (0.065 R)
• M27: 37,384,209 km (0.082 R)
• M28: 38,107,066 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.2

Radius: 12

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.43 AU - 6.37 AU

Year: 9112 Days

Day: 5.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,637,300 km

• M1: 149,299 km (0.116 R)
• M2: 1,650,962 km (0.079 R)
• M3: 2,207,317 km (0.055 R)
• M4: 2,781,473 km (0.082 R)
• M5: 3,264,226 km (0.109 R)
• M6: 4,012,963 km (0.115 R)
• M7: 7,601,816 km (0.098 R)
• M8: 8,110,748 km (0.071 R)
• M9: 9,196,978 km (0.118 R)
• M10: 9,726,255 km (0.064 R)
• M11: 11,712,765 km (0.117 R)
• M12: 12,742,597 km (0.1 R)
• M13: 16,684,202 km (0.073 R)
• M14: 18,816,121 km (0.042 R)
• M15: 25,069,013 km (0.097 R)
• M16: 27,757,436 km (0.115 R)
• M17: 33,474,768 km (0.102 R)
• M18: 34,154,989 km (0.086 R)
• M19: 37,329,905 km (0.1 R)
• M20: 39,931,711 km (0.098 R)
• M21: 46,188,492 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370.6

Radius: 3.6

Gravity: 28.6 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.96 AU - 6.44 AU

Year: 9816 Days

Day: 23.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,637,300 km

• M1: 44,879 km (0.073 R)
• M2: 169,644 km (0.088 R)
• M3: 330,462 km (0.082 R)
• M4: 519,703 km (0.083 R)
• M5: 2,076,718 km (0.063 R)
• M6: 3,463,191 km (0.045 R)
• M7: 5,125,971 km (0.114 R)
• M8: 5,431,450 km (0.06 R)
• M9: 6,560,914 km (0.103 R)
• M10: 8,619,680 km (0.053 R)
• M11: 9,406,714 km (0.109 R)
• M12: 12,429,489 km (0.114 R)
• M13: 13,374,648 km (0.109 R)
• M14: 13,546,237 km (0.06 R)
• M15: 13,777,365 km (0.042 R)
• M16: 14,972,652 km (0.042 R)
• M17: 15,219,639 km (0.092 R)
• M18: 15,721,988 km (0.063 R)
• M19: 16,959,163 km (0.036 R)
• M20: 17,911,203 km (0.056 R)
• M21: 18,683,876 km (0.093 R)
• M22: 18,970,207 km (0.069 R)
• M23: 19,114,419 km (0.097 R)
• M24: 20,446,139 km (0.091 R)
• M25: 20,750,272 km (0.085 R)
• M26: 25,156,228 km (0.071 R)
• M27: 27,854,226 km (0.059 R)
• M28: 28,699,753 km (0.081 R)
• M29: 29,080,928 km (0.054 R)
• M30: 33,604,918 km (0.047 R)
• M31: 34,455,531 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.1

Radius: 3.4

Gravity: 71.46 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.3 AU - 9.82 AU

Year: 17339 Days

Day: 22.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,637,300 km

• M1: 42,336 km (0.108 R)
• M2: 227,389 km (0.094 R)
• M3: 1,507,049 km (0.093 R)
• M4: 2,320,712 km (0.115 R)
• M5: 3,064,363 km (0.101 R)
• M6: 3,307,160 km (0.11 R)
• M7: 3,739,947 km (0.111 R)
• M8: 4,823,335 km (0.086 R)
• M9: 6,704,079 km (0.082 R)
• M10: 7,929,585 km (0.055 R)
• M11: 8,334,845 km (0.082 R)
• M12: 8,914,388 km (0.061 R)
• M13: 13,175,533 km (0.112 R)
• M14: 13,815,513 km (0.106 R)
• M15: 14,475,988 km (0.111 R)
• M16: 15,003,918 km (0.088 R)
• M17: 15,311,342 km (0.067 R)
• M18: 15,780,331 km (0.095 R)
• M19: 16,583,223 km (0.076 R)
• M20: 18,708,710 km (0.075 R)
• M21: 20,346,806 km (0.055 R)
• M22: 20,628,798 km (0.054 R)
• M23: 21,393,543 km (0.083 R)
• M24: 22,475,584 km (0.084 R)
• M25: 23,182,883 km (0.073 R)
• M26: 30,107,170 km (0.089 R)
• M27: 37,020,835 km (0.119 R)
• M28: 37,722,898 km (0.071 R)
• M29: 38,006,237 km (0.095 R)
• M30: 38,148,504 km (0.082 R)
• M31: 39,444,171 km (0.095 R)
• M32: 41,067,159 km (0.116 R)
• M33: 41,216,906 km (0.093 R)
• M34: 42,580,940 km (0.076 R)
• M35: 45,879,872 km (0.084 R)
• M36: 50,537,901 km (0.082 R)
• M37: 51,401,529 km (0.115 R)
• M38: 51,749,793 km (0.034 R)
• M39: 63,540,200 km (0.073 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 15,292 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit