🌌 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: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.63 AU - 0.71 AU

Year: 349 Days

Day: 21.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,397,140 km

• M1: 192,532 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.6

Radius: 8.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.84 AU - 1.04 AU

Year: 579 Days

Day: 7.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 91,397,140 km

• M1: 102,026 km (0.044 R)
• M2: 384,616 km (0.072 R)
• M3: 683,961 km (0.115 R)
• M4: 1,479,523 km (0.087 R)
• M5: 2,263,117 km (0.047 R)
• M6: 2,968,471 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.1

Radius: 11.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.15 AU - 1.33 AU

Year: 878 Days

Day: 14.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 91,397,140 km

• M1: 145,559 km (0.078 R)
• M2: 543,639 km (0.115 R)
• M3: 1,174,343 km (0.082 R)
• M4: 1,644,829 km (0.113 R)
• M5: 2,108,732 km (0.079 R)
• M6: 2,659,551 km (0.119 R)
• M7: 3,591,246 km (0.107 R)
• M8: 4,289,869 km (0.114 R)
• M9: 5,318,952 km (0.074 R)
• M10: 5,996,182 km (0.092 R)
• M11: 6,586,794 km (0.062 R)
• M12: 7,390,135 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.6

Radius: 10.1

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.97 AU - 1.57 AU

Year: 910 Days

Day: 10.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 91,397,140 km

• M1: 125,812 km (0.095 R)
• M2: 612,902 km (0.119 R)
• M3: 1,197,980 km (0.085 R)
• M4: 1,561,203 km (0.101 R)
• M5: 2,100,653 km (0.119 R)
• M6: 3,297,586 km (0.119 R)
• M7: 4,274,610 km (0.034 R)
• M8: 5,758,620 km (0.085 R)

Asteroid Belt

Center: 2.41 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.4

Radius: 11.7

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.15 AU - 3.93 AU

Year: 4235 Days

Day: 8.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 91,397,140 km

• M1: 146,157 km (0.108 R)
• M2: 688,749 km (0.066 R)
• M3: 1,670,559 km (0.119 R)
• M4: 2,921,796 km (0.111 R)
• M5: 3,448,381 km (0.097 R)
• M6: 4,083,872 km (0.079 R)
• M7: 4,541,492 km (0.051 R)
• M8: 5,087,225 km (0.086 R)
• M9: 5,647,170 km (0.102 R)
• M10: 6,532,041 km (0.036 R)
• M11: 7,332,240 km (0.085 R)
• M12: 8,011,116 km (0.053 R)
• M13: 8,461,256 km (0.119 R)
• M14: 9,167,956 km (0.055 R)
• M15: 9,871,365 km (0.079 R)
• M16: 11,859,222 km (0.061 R)
• M17: 12,247,428 km (0.094 R)
• M18: 13,411,300 km (0.083 R)
• M19: 13,993,385 km (0.033 R)
• M20: 14,814,228 km (0.106 R)
• M21: 15,841,218 km (0.095 R)
• M22: 16,793,408 km (0.081 R)
• M23: 23,552,838 km (0.103 R)
• M24: 24,950,681 km (0.115 R)
• M25: 25,428,796 km (0.089 R)
• M26: 26,239,018 km (0.096 R)
• M27: 27,486,664 km (0.104 R)
• M28: 29,299,192 km (0.086 R)
• M29: 29,920,771 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721

Radius: 9.9

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.64 AU - 3.9 AU

Year: 4654 Days

Day: 13.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 91,397,140 km

• M1: 129,701 km (0.115 R)
• M2: 578,794 km (0.077 R)
• M3: 1,105,678 km (0.076 R)
• M4: 1,552,826 km (0.067 R)
• M5: 2,425,430 km (0.105 R)
• M6: 3,617,127 km (0.117 R)
• M7: 6,390,223 km (0.082 R)
• M8: 6,774,390 km (0.073 R)
• M9: 7,554,094 km (0.087 R)
• M10: 7,911,334 km (0.102 R)
• M11: 8,814,905 km (0.098 R)
• M12: 9,211,190 km (0.099 R)
• M13: 9,827,832 km (0.091 R)
• M14: 10,471,701 km (0.063 R)
• M15: 11,189,322 km (0.098 R)
• M16: 12,035,298 km (0.091 R)
• M17: 12,974,025 km (0.07 R)
• M18: 13,435,385 km (0.093 R)
• M19: 14,067,585 km (0.043 R)
• M20: 15,052,837 km (0.102 R)
• M21: 15,505,221 km (0.09 R)
• M22: 16,916,976 km (0.1 R)
• M23: 18,157,442 km (0.073 R)
• M24: 18,605,637 km (0.101 R)
• M25: 19,126,836 km (0.112 R)
• M26: 19,994,653 km (0.105 R)
• M27: 26,901,288 km (0.095 R)
• M28: 28,416,714 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.7

Radius: 13.6

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.81 AU - 4.43 AU

Year: 5317 Days

Day: 11.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 91,397,140 km

• M1: 202,406 km (0.053 R)
• M2: 670,946 km (0.096 R)
• M3: 1,572,423 km (0.095 R)
• M4: 2,099,157 km (0.095 R)
• M5: 2,583,705 km (0.101 R)
• M6: 3,285,020 km (0.086 R)
• M7: 3,715,263 km (0.12 R)
• M8: 5,154,544 km (0.067 R)
• M9: 5,923,328 km (0.043 R)
• M10: 6,632,422 km (0.054 R)
• M11: 7,579,526 km (0.059 R)
• M12: 8,298,643 km (0.094 R)
• M13: 9,187,553 km (0.043 R)
• M14: 11,688,530 km (0.108 R)
• M15: 15,076,623 km (0.109 R)
• M16: 15,549,203 km (0.1 R)
• M17: 16,648,897 km (0.093 R)
• M18: 17,281,845 km (0.12 R)
• M19: 17,734,379 km (0.079 R)
• M20: 20,188,382 km (0.11 R)
• M21: 20,763,137 km (0.038 R)
• M22: 22,247,747 km (0.095 R)
• M23: 25,014,410 km (0.111 R)
• M24: 27,562,211 km (0.072 R)
• M25: 28,003,076 km (0.117 R)
• M26: 28,448,578 km (0.114 R)
• M27: 32,871,589 km (0.029 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.2

Radius: 9.1

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.54 AU - 6.36 AU

Year: 8090 Days

Day: 8.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 91,397,140 km

• M1: 113,096 km (0.05 R)
• M2: 448,494 km (0.078 R)
• M3: 758,162 km (0.093 R)
• M4: 1,139,188 km (0.104 R)
• M5: 2,352,875 km (0.095 R)
• M6: 2,655,362 km (0.103 R)
• M7: 3,316,585 km (0.107 R)
• M8: 3,723,491 km (0.079 R)
• M9: 4,299,443 km (0.057 R)
• M10: 4,608,961 km (0.09 R)
• M11: 5,055,361 km (0.091 R)
• M12: 6,316,022 km (0.044 R)
• M13: 7,331,193 km (0.076 R)
• M14: 7,982,094 km (0.065 R)
• M15: 10,465,568 km (0.109 R)
• M16: 10,821,312 km (0.077 R)
• M17: 12,608,707 km (0.11 R)
• M18: 14,647,427 km (0.052 R)
• M19: 15,028,752 km (0.077 R)
• M20: 16,011,311 km (0.107 R)
• M21: 16,348,055 km (0.119 R)
• M22: 23,856,821 km (0.088 R)
• M23: 25,648,106 km (0.084 R)
• M24: 26,765,004 km (0.115 R)
• M25: 27,144,384 km (0.077 R)
• M26: 27,913,766 km (0.106 R)
• M27: 33,934,033 km (0.117 R)
• M28: 36,195,504 km (0.076 R)
• M29: 38,918,335 km (0.076 R)
• M30: 39,773,436 km (0.119 R)
• M31: 42,542,343 km (0.079 R)
• M32: 43,059,204 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873

Radius: 8

Gravity: 13.64 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 10.49 AU - 11.59 AU

Year: 23323 Days

Day: 20.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 91,397,140 km

• M1: 99,483 km (0.056 R)
• M2: 413,788 km (0.106 R)
• M3: 797,506 km (0.083 R)
• M4: 1,239,568 km (0.095 R)
• M5: 1,543,252 km (0.119 R)
• M6: 2,146,879 km (0.1 R)
• M7: 3,380,463 km (0.081 R)
• M8: 4,013,860 km (0.101 R)
• M9: 4,323,678 km (0.092 R)
• M10: 4,952,587 km (0.063 R)
• M11: 6,624,792 km (0.106 R)
• M12: 6,960,639 km (0.12 R)
• M13: 7,876,627 km (0.119 R)
• M14: 8,199,160 km (0.063 R)
• M15: 8,586,469 km (0.089 R)
• M16: 9,946,014 km (0.119 R)
• M17: 10,450,758 km (0.117 R)
• M18: 14,158,541 km (0.032 R)
• M19: 15,206,474 km (0.076 R)
• M20: 15,622,954 km (0.052 R)
• M21: 16,918,322 km (0.102 R)
• M22: 18,565,545 km (0.076 R)
• M23: 19,525,514 km (0.042 R)
• M24: 20,720,502 km (0.085 R)
• M25: 24,144,947 km (0.117 R)
• M26: 25,404,262 km (0.091 R)
• M27: 33,893,043 km (0.105 R)
• M28: 35,324,695 km (0.103 R)
• M29: 39,704,172 km (0.059 R)
• M30: 42,761,803 km (0.078 R)
• M31: 45,455,463 km (0.057 R)
• M32: 47,725,760 km (0.082 R)
• M33: 57,363,453 km (0.085 R)
• M34: 72,591,918 km (0.065 R)
• M35: 76,901,982 km (0.046 R)
• M36: 85,503,112 km (0.066 R)
• M37: 88,149,648 km (0.045 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 17,670 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit