🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.5 AU - 0.72 AU

Year: 303 Days

Day: 19.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 156.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.9

Radius: 13.1

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.85 AU - 1.03 AU

Year: 579 Days

Day: 14.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,001,765 km

• M1: 162,912 km (0.072 R)
• M2: 595,400 km (0.062 R)
• M3: 1,241,363 km (0.095 R)
• M4: 2,215,993 km (0.065 R)
• M5: 3,436,263 km (0.105 R)
• M6: 3,973,768 km (0.094 R)
• M7: 4,488,086 km (0.12 R)
• M8: 5,856,906 km (0.032 R)
• M9: 6,586,794 km (0.11 R)
• M10: 7,398,662 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.2

Radius: 9.2

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.37 AU - 5.15 AU

Year: 6603 Days

Day: 9.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,001,765 km

• M1: 115,190 km (0.088 R)
• M2: 2,126,085 km (0.092 R)
• M3: 2,706,525 km (0.11 R)
• M4: 3,714,665 km (0.099 R)
• M5: 4,230,478 km (0.115 R)
• M6: 7,739,895 km (0.106 R)
• M7: 9,569,327 km (0.093 R)
• M8: 9,914,748 km (0.087 R)
• M9: 13,408,607 km (0.063 R)
• M10: 14,283,754 km (0.113 R)
• M11: 15,371,780 km (0.109 R)
• M12: 21,285,982 km (0.1 R)
• M13: 23,318,867 km (0.059 R)
• M14: 31,690,215 km (0.047 R)
• M15: 32,072,886 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.9

Radius: 9.1

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.37 AU - 5.41 AU

Year: 6875 Days

Day: 9.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,001,765 km

• M1: 113,246 km (0.102 R)
• M2: 507,735 km (0.086 R)
• M3: 850,165 km (0.052 R)
• M4: 1,611,767 km (0.066 R)
• M5: 2,619,309 km (0.094 R)
• M6: 3,850,500 km (0.102 R)
• M7: 4,891,402 km (0.055 R)
• M8: 6,075,768 km (0.083 R)
• M9: 8,033,256 km (0.062 R)
• M10: 9,001,154 km (0.09 R)
• M11: 9,400,431 km (0.119 R)
• M12: 10,718,538 km (0.116 R)
• M13: 12,479,903 km (0.108 R)
• M14: 13,088,916 km (0.108 R)
• M15: 13,429,401 km (0.069 R)
• M16: 17,781,801 km (0.096 R)
• M17: 18,695,395 km (0.098 R)
• M18: 20,388,245 km (0.115 R)
• M19: 24,160,804 km (0.093 R)
• M20: 24,673,626 km (0.066 R)
• M21: 25,544,435 km (0.117 R)
• M22: 26,980,275 km (0.117 R)
• M23: 28,659,062 km (0.083 R)
• M24: 29,816,202 km (0.054 R)
• M25: 31,004,159 km (0.115 R)
• M26: 32,844,811 km (0.053 R)
• M27: 36,072,684 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.9

Radius: 8.2

Gravity: 13.7 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.32 AU - 5.6 AU

Year: 7024 Days

Day: 11.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 85,001,765 km

• M1: 107,860 km (0.085 R)
• M2: 397,182 km (0.116 R)
• M3: 737,966 km (0.087 R)
• M4: 1,129,464 km (0.103 R)
• M5: 1,455,587 km (0.117 R)
• M6: 1,814,323 km (0.12 R)
• M7: 3,191,371 km (0.05 R)
• M8: 3,558,036 km (0.12 R)
• M9: 4,514,565 km (0.102 R)
• M10: 4,888,559 km (0.096 R)
• M11: 5,190,149 km (0.117 R)
• M12: 5,472,141 km (0.109 R)
• M13: 5,931,256 km (0.114 R)
• M14: 8,622,372 km (0.085 R)
• M15: 9,335,805 km (0.085 R)
• M16: 10,930,817 km (0.11 R)
• M17: 12,144,654 km (0.115 R)
• M18: 12,531,215 km (0.118 R)
• M19: 13,155,487 km (0.095 R)
• M20: 16,524,132 km (0.088 R)
• M21: 18,697,041 km (0.09 R)
• M22: 23,516,187 km (0.116 R)
• M23: 24,203,888 km (0.094 R)
• M24: 30,196,929 km (0.068 R)
• M25: 31,628,281 km (0.1 R)
• M26: 33,318,737 km (0.099 R)
• M27: 35,068,434 km (0.106 R)
• M28: 35,740,128 km (0.108 R)
• M29: 37,923,808 km (0.12 R)
• M30: 40,930,576 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.3

Radius: 5.6

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 6.81 AU - 7.57 AU

Year: 12258 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,001,765 km

• M1: 69,713 km (0.103 R)
• M2: 837,299 km (0.087 R)
• M3: 1,107,772 km (0.063 R)
• M4: 1,825,244 km (0.085 R)
• M5: 2,369,481 km (0.052 R)
• M6: 2,585,500 km (0.119 R)
• M7: 3,120,163 km (0.087 R)
• M8: 3,631,189 km (0.115 R)
• M9: 3,943,849 km (0.083 R)
• M10: 4,274,310 km (0.072 R)
• M11: 5,256,271 km (0.075 R)
• M12: 5,531,381 km (0.118 R)
• M13: 6,077,114 km (0.087 R)
• M14: 6,278,174 km (0.085 R)
• M15: 19,391,325 km (0.12 R)
• M16: 19,681,395 km (0.103 R)
• M17: 25,154,284 km (0.107 R)
• M18: 26,822,300 km (0.046 R)
• M19: 31,561,112 km (0.106 R)
• M20: 34,021,847 km (0.073 R)
• M21: 35,840,359 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.4

Radius: 4.2

Gravity: 41.29 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.75 AU - 7.79 AU

Year: 13771 Days

Day: 24.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 85,001,765 km

• M1: 52,359 km (0.102 R)
• M2: 229,184 km (0.097 R)
• M3: 473,776 km (0.12 R)
• M4: 1,527,843 km (0.096 R)
• M5: 1,702,274 km (0.106 R)
• M6: 2,266,408 km (0.11 R)
• M7: 2,970,266 km (0.099 R)
• M8: 3,669,037 km (0.111 R)
• M9: 4,729,836 km (0.061 R)
• M10: 5,206,305 km (0.077 R)
• M11: 5,565,789 km (0.105 R)
• M12: 5,980,025 km (0.116 R)
• M13: 6,175,101 km (0.053 R)
• M14: 6,536,679 km (0.085 R)
• M15: 7,844,613 km (0.115 R)
• M16: 9,474,183 km (0.067 R)
• M17: 9,739,420 km (0.108 R)
• M18: 9,954,990 km (0.053 R)
• M19: 11,139,955 km (0.098 R)
• M20: 12,041,731 km (0.084 R)
• M21: 13,384,521 km (0.106 R)
• M22: 14,682,732 km (0.064 R)
• M23: 14,824,102 km (0.07 R)
• M24: 15,617,868 km (0.079 R)
• M25: 16,515,605 km (0.109 R)
• M26: 17,368,313 km (0.084 R)
• M27: 19,414,812 km (0.104 R)
• M28: 20,539,937 km (0.045 R)
• M29: 22,075,859 km (0.106 R)
• M30: 26,717,731 km (0.115 R)
• M31: 28,986,682 km (0.103 R)
• M32: 30,110,910 km (0.044 R)
• M33: 31,147,324 km (0.112 R)
• M34: 35,151,161 km (0.057 R)
• M35: 35,531,289 km (0.119 R)
• M36: 37,079,179 km (0.064 R)
• M37: 41,708,186 km (0.092 R)
• M38: 44,013,938 km (0.072 R)
• M39: 45,198,005 km (0.1 R)
• M40: 46,860,486 km (0.109 R)
• M41: 55,787,888 km (0.072 R)
• M42: 57,348,942 km (0.114 R)
• M43: 60,376,354 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.7

Radius: 5.3

Gravity: 17.22 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.59 AU - 9.11 AU

Year: 15341 Days

Day: 19.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,001,765 km

• M1: 82,279 km (0.103 R)
• M2: 755,918 km (0.044 R)
• M3: 1,121,236 km (0.09 R)
• M4: 1,690,755 km (0.041 R)
• M5: 2,217,190 km (0.105 R)
• M6: 3,128,839 km (0.113 R)
• M7: 3,722,743 km (0.111 R)
• M8: 4,119,177 km (0.083 R)
• M9: 4,637,983 km (0.038 R)
• M10: 6,697,048 km (0.114 R)
• M11: 6,902,595 km (0.116 R)
• M12: 7,456,706 km (0.069 R)
• M13: 11,016,836 km (0.116 R)
• M14: 12,072,099 km (0.093 R)
• M15: 16,970,083 km (0.064 R)
• M16: 18,939,988 km (0.117 R)
• M17: 23,799,974 km (0.051 R)
• M18: 27,920,498 km (0.071 R)
• M19: 36,263,122 km (0.082 R)
• M20: 44,225,918 km (0.097 R)
• M21: 55,259,359 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.5

Radius: 7

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 7.55 AU - 10.45 AU

Year: 17167 Days

Day: 16.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 85,001,765 km

• M1: 87,515 km (0.105 R)
• M2: 502,649 km (0.099 R)
• M3: 1,510,938 km (0.066 R)
• M4: 1,753,736 km (0.065 R)
• M5: 3,286,366 km (0.086 R)
• M6: 3,751,316 km (0.092 R)
• M7: 4,780,400 km (0.048 R)
• M8: 5,551,876 km (0.097 R)
• M9: 6,249,451 km (0.063 R)
• M10: 6,840,363 km (0.048 R)
• M11: 7,817,835 km (0.108 R)
• M12: 8,933,985 km (0.091 R)
• M13: 9,786,244 km (0.082 R)
• M14: 11,080,265 km (0.056 R)
• M15: 11,363,604 km (0.069 R)
• M16: 12,182,652 km (0.101 R)
• M17: 13,742,360 km (0.087 R)
• M18: 14,003,707 km (0.11 R)
• M19: 15,082,308 km (0.113 R)
• M20: 15,998,744 km (0.052 R)
• M21: 21,230,780 km (0.054 R)
• M22: 24,900,266 km (0.069 R)
• M23: 30,495,526 km (0.11 R)
• M24: 33,939,119 km (0.106 R)
• M25: 36,623,354 km (0.076 R)
• M26: 43,383,383 km (0.111 R)
• M27: 46,100,529 km (0.12 R)
• M28: 50,308,418 km (0.117 R)
• M29: 53,788,962 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.3

Radius: 5.9

Gravity: 26.98 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 7.74 AU - 12.3 AU

Year: 20167 Days

Day: 22.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 85,001,765 km

• M1: 80,184 km (0.06 R)
• M2: 264,339 km (0.113 R)
• M3: 490,681 km (0.085 R)
• M4: 871,258 km (0.06 R)
• M5: 1,133,952 km (0.091 R)
• M6: 1,337,704 km (0.107 R)
• M7: 1,782,459 km (0.034 R)
• M8: 2,144,635 km (0.072 R)
• M9: 3,714,665 km (0.049 R)
• M10: 4,169,293 km (0.089 R)
• M11: 5,228,446 km (0.079 R)
• M12: 6,099,704 km (0.094 R)
• M13: 6,501,374 km (0.098 R)
• M14: 6,825,702 km (0.077 R)
• M15: 7,557,385 km (0.052 R)
• M16: 9,524,597 km (0.082 R)
• M17: 10,436,695 km (0.068 R)
• M18: 12,292,756 km (0.064 R)
• M19: 14,749,752 km (0.111 R)
• M20: 15,884,452 km (0.058 R)
• M21: 16,989,082 km (0.088 R)
• M22: 19,636,366 km (0.048 R)
• M23: 21,614,349 km (0.087 R)
• M24: 27,731,256 km (0.092 R)
• M25: 29,579,987 km (0.095 R)
• M26: 32,437,755 km (0.09 R)
• M27: 34,768,191 km (0.082 R)
• M28: 40,221,482 km (0.064 R)
• M29: 41,156,319 km (0.113 R)
• M30: 46,388,056 km (0.104 R)
• M31: 50,771,124 km (0.104 R)
• M32: 56,773,888 km (0.111 R)
• M33: 61,574,334 km (0.08 R)
• M34: 62,399,815 km (0.105 R)
• M35: 66,421,903 km (0.103 R)
• M36: 67,072,505 km (0.06 R)
• M37: 67,290,169 km (0.12 R)
• M38: 71,517,955 km (0.062 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 17,981 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit