🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.9

Radius: 13.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.89 AU - 0.95 AU

Year: 620 Days

Day: 7.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,990,933 km

• M1: 167,998 km (0.099 R)
• M2: 632,051 km (0.085 R)
• M3: 1,094,308 km (0.044 R)
• M4: 1,957,189 km (0.099 R)
• M5: 2,428,721 km (0.069 R)
• M6: 3,417,713 km (0.038 R)
• M7: 3,915,425 km (0.077 R)
• M8: 4,447,694 km (0.104 R)
• M9: 5,305,638 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 10.2

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.77 AU - 1.15 AU

Year: 661 Days

Day: 8.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,990,933 km

• M1: 126,859 km (0.095 R)
• M2: 524,939 km (0.08 R)
• M3: 959,222 km (0.115 R)
• M4: 1,297,762 km (0.089 R)
• M5: 1,814,921 km (0.045 R)
• M6: 2,523,118 km (0.113 R)
• M7: 3,827,611 km (0.106 R)
• M8: 5,569,678 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.9

Radius: 13

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.19 AU - 1.35 AU

Year: 1006 Days

Day: 9.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 165.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,990,933 km

• M1: 161,715 km (0.043 R)
• M2: 626,067 km (0.118 R)
• M3: 1,194,539 km (0.064 R)
• M4: 1,613,114 km (0.109 R)
• M5: 2,034,830 km (0.114 R)
• M6: 3,044,017 km (0.065 R)
• M7: 4,138,326 km (0.112 R)
• M8: 4,613,000 km (0.119 R)
• M9: 5,051,471 km (0.087 R)
• M10: 5,731,992 km (0.115 R)
• M11: 6,198,139 km (0.087 R)
• M12: 7,751,264 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.4

Radius: 13.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.44 AU - 3.46 AU

Year: 4504 Days

Day: 11.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,990,933 km

• M1: 173,234 km (0.12 R)
• M2: 826,079 km (0.11 R)
• M3: 1,273,078 km (0.079 R)
• M4: 2,008,202 km (0.065 R)
• M5: 3,239,991 km (0.094 R)
• M6: 4,748,087 km (0.062 R)
• M7: 5,659,138 km (0.115 R)
• M8: 6,096,861 km (0.074 R)
• M9: 6,683,734 km (0.067 R)
• M10: 7,444,588 km (0.08 R)
• M11: 8,336,491 km (0.098 R)
• M12: 11,908,738 km (0.094 R)
• M13: 13,639,436 km (0.116 R)
• M14: 14,163,478 km (0.063 R)
• M15: 15,702,540 km (0.077 R)
• M16: 19,437,700 km (0.09 R)
• M17: 20,781,388 km (0.072 R)
• M18: 22,474,537 km (0.108 R)
• M19: 23,206,519 km (0.036 R)
• M20: 25,577,047 km (0.094 R)
• M21: 26,294,519 km (0.106 R)
• M22: 28,358,072 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.3

Radius: 12.8

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.56 AU - 3.98 AU

Year: 5145 Days

Day: 7 Hours

Environment

Temp: -227 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,990,933 km

• M1: 182,659 km (0.08 R)
• M2: 608,415 km (0.061 R)
• M3: 1,478,925 km (0.094 R)
• M4: 2,646,835 km (0.067 R)
• M5: 3,263,328 km (0.05 R)
• M6: 5,072,265 km (0.029 R)
• M7: 7,348,696 km (0.048 R)
• M8: 8,818,196 km (0.113 R)
• M9: 9,324,585 km (0.083 R)
• M10: 11,420,152 km (0.028 R)
• M11: 15,410,077 km (0.05 R)
• M12: 19,508,909 km (0.082 R)
• M13: 20,121,811 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.7

Radius: 12.6

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.48 AU - 4.06 AU

Year: 5145 Days

Day: 14.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,990,933 km

• M1: 156,779 km (0.11 R)
• M2: 632,949 km (0.062 R)
• M3: 1,072,467 km (0.114 R)
• M4: 2,709,068 km (0.102 R)
• M5: 5,395,696 km (0.101 R)
• M6: 6,139,646 km (0.043 R)
• M7: 6,761,674 km (0.086 R)
• M8: 7,981,346 km (0.062 R)
• M9: 8,502,096 km (0.07 R)
• M10: 10,061,055 km (0.059 R)
• M11: 14,353,467 km (0.104 R)
• M12: 16,310,057 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.3

Radius: 11.7

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 4.04 AU - 4.64 AU

Year: 6355 Days

Day: 13.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,990,933 km

• M1: 150,795 km (0.119 R)
• M2: 629,657 km (0.119 R)
• M3: 1,220,419 km (0.099 R)
• M4: 1,680,732 km (0.082 R)
• M5: 2,454,153 km (0.102 R)
• M6: 3,179,404 km (0.091 R)
• M7: 3,560,130 km (0.071 R)
• M8: 5,169,055 km (0.099 R)
• M9: 5,668,114 km (0.108 R)
• M10: 6,526,806 km (0.095 R)
• M11: 7,110,836 km (0.104 R)
• M12: 7,766,822 km (0.103 R)
• M13: 8,148,446 km (0.107 R)
• M14: 10,943,533 km (0.099 R)
• M15: 12,950,987 km (0.107 R)
• M16: 13,380,183 km (0.075 R)
• M17: 14,957,693 km (0.07 R)
• M18: 18,411,758 km (0.1 R)
• M19: 19,299,920 km (0.117 R)
• M20: 21,161,516 km (0.114 R)
• M21: 23,534,288 km (0.111 R)
• M22: 24,825,916 km (0.119 R)
• M23: 32,786,767 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.7

Radius: 3.8

Gravity: 67.71 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.58 AU - 6.96 AU

Year: 9743 Days

Day: 19.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 46,990,933 km

• M1: 49,666 km (0.115 R)
• M2: 169,195 km (0.099 R)
• M3: 446,250 km (0.114 R)
• M4: 726,148 km (0.07 R)
• M5: 936,333 km (0.096 R)
• M6: 1,506,750 km (0.083 R)
• M7: 1,833,023 km (0.084 R)
• M8: 2,417,950 km (0.117 R)
• M9: 3,489,819 km (0.108 R)
• M10: 4,086,415 km (0.111 R)
• M11: 4,940,769 km (0.101 R)
• M12: 5,762,360 km (0.1 R)
• M13: 8,253,015 km (0.064 R)
• M14: 8,720,060 km (0.109 R)
• M15: 9,604,782 km (0.111 R)
• M16: 9,757,820 km (0.116 R)
• M17: 12,433,528 km (0.119 R)
• M18: 14,599,855 km (0.097 R)
• M19: 15,490,560 km (0.068 R)
• M20: 15,701,194 km (0.116 R)
• M21: 17,304,285 km (0.118 R)
• M22: 21,260,251 km (0.085 R)
• M23: 21,958,574 km (0.081 R)
• M24: 25,001,095 km (0.111 R)
• M25: 31,008,497 km (0.086 R)
• M26: 32,475,454 km (0.05 R)
• M27: 35,668,770 km (0.086 R)
• M28: 38,677,482 km (0.087 R)
• M29: 40,774,545 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.6

Radius: 7

Gravity: 13.54 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.14 AU - 8.74 AU

Year: 17235 Days

Day: 23.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 46,990,933 km

• M1: 87,066 km (0.103 R)
• M2: 321,486 km (0.077 R)
• M3: 546,780 km (0.046 R)
• M4: 915,539 km (0.116 R)
• M5: 1,138,290 km (0.086 R)
• M6: 1,646,773 km (0.07 R)
• M7: 1,944,024 km (0.11 R)
• M8: 2,235,740 km (0.088 R)
• M9: 2,716,398 km (0.099 R)
• M10: 4,033,757 km (0.034 R)
• M11: 5,277,364 km (0.053 R)
• M12: 9,661,330 km (0.034 R)
• M13: 11,292,844 km (0.117 R)
• M14: 12,045,172 km (0.111 R)
• M15: 15,771,954 km (0.114 R)
• M16: 17,937,084 km (0.075 R)
• M17: 21,121,873 km (0.078 R)
• M18: 22,651,062 km (0.101 R)
• M19: 23,643,495 km (0.047 R)
• M20: 25,928,303 km (0.065 R)
• M21: 28,698,706 km (0.089 R)
• M22: 30,333,362 km (0.074 R)
• M23: 32,029,054 km (0.094 R)
• M24: 32,400,356 km (0.086 R)
• M25: 36,274,192 km (0.114 R)
• M26: 36,542,870 km (0.081 R)
• M27: 40,879,713 km (0.104 R)
• M28: 48,903,694 km (0.052 R)
• M29: 50,224,493 km (0.074 R)
• M30: 55,567,381 km (0.041 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197

Radius: 5.1

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.55 AU - 10.89 AU

Year: 18100 Days

Day: 19.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,990,933 km

• M1: 63,429 km (0.093 R)
• M2: 224,995 km (0.092 R)
• M3: 576,849 km (0.083 R)
• M4: 1,219,821 km (0.05 R)
• M5: 1,544,149 km (0.03 R)
• M6: 2,762,325 km (0.114 R)
• M7: 3,089,346 km (0.114 R)
• M8: 4,454,725 km (0.075 R)
• M9: 8,393,189 km (0.112 R)
• M10: 8,572,407 km (0.115 R)
• M11: 12,079,130 km (0.052 R)
• M12: 12,597,337 km (0.079 R)
• M13: 25,095,043 km (0.111 R)
• M14: 30,330,370 km (0.053 R)
• M15: 34,616,798 km (0.106 R)
• M16: 38,053,958 km (0.105 R)
• M17: 39,415,000 km (0.077 R)
• M18: 45,047,509 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 16,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit