🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.61 AU - 0.69 AU

Year: 344 Days

Day: 35.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.7

Radius: 8.4

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.53 AU - 0.85 AU

Year: 376 Days

Day: 14.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,536,267 km

• M1: 104,419 km (0.083 R)
• M2: 387,758 km (0.109 R)
• M3: 675,584 km (0.118 R)
• M4: 1,034,020 km (0.061 R)
• M5: 1,354,459 km (0.094 R)
• M6: 1,770,491 km (0.118 R)
• M7: 2,172,610 km (0.11 R)
• M8: 2,595,822 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.1

Radius: 10.4

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.64 AU - 1 AU

Year: 487 Days

Day: 7.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,536,267 km

• M1: 129,552 km (0.112 R)
• M2: 498,161 km (0.085 R)
• M3: 861,085 km (0.052 R)
• M4: 1,213,089 km (0.064 R)
• M5: 1,596,060 km (0.067 R)
• M6: 2,108,133 km (0.099 R)
• M7: 2,475,097 km (0.057 R)
• M8: 2,915,064 km (0.117 R)
• M9: 5,042,795 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.8

Radius: 8.2

Gravity: 12.46 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.65 AU - 1.67 AU

Year: 1403 Days

Day: 10.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,536,267 km

• M1: 102,175 km (0.098 R)
• M2: 384,616 km (0.067 R)
• M3: 721,810 km (0.116 R)
• M4: 1,098,198 km (0.098 R)
• M5: 1,370,765 km (0.086 R)
• M6: 1,688,810 km (0.077 R)
• M7: 2,045,003 km (0.059 R)
• M8: 2,579,965 km (0.075 R)
• M9: 3,360,567 km (0.086 R)
• M10: 4,142,365 km (0.083 R)
• M11: 4,754,071 km (0.08 R)
• M12: 7,295,739 km (0.059 R)
• M13: 8,719,312 km (0.107 R)
• M14: 9,274,470 km (0.058 R)
• M15: 10,661,391 km (0.064 R)
• M16: 11,081,761 km (0.111 R)
• M17: 11,807,162 km (0.067 R)
• M18: 12,371,594 km (0.096 R)
• M19: 13,392,450 km (0.088 R)
• M20: 13,717,676 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.8

Radius: 8.6

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.52 AU - 2.52 AU

Year: 1883 Days

Day: 12.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,536,267 km

• M1: 107,112 km (0.086 R)
• M2: 389,553 km (0.083 R)
• M3: 758,611 km (0.08 R)
• M4: 1,121,984 km (0.1 R)
• M5: 1,677,591 km (0.066 R)
• M6: 2,103,944 km (0.093 R)
• M7: 2,393,416 km (0.107 R)
• M8: 2,709,517 km (0.113 R)
• M9: 3,144,098 km (0.103 R)
• M10: 3,541,131 km (0.074 R)
• M11: 3,953,573 km (0.112 R)
• M12: 4,397,729 km (0.11 R)
• M13: 5,190,149 km (0.07 R)
• M14: 5,862,142 km (0.081 R)
• M15: 7,571,298 km (0.107 R)
• M16: 7,966,535 km (0.061 R)
• M17: 8,345,766 km (0.118 R)
• M18: 8,676,078 km (0.062 R)
• M19: 9,459,373 km (0.067 R)
• M20: 11,058,424 km (0.119 R)
• M21: 13,638,688 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 8.2

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.39 AU - 2.53 AU

Year: 2531 Days

Day: 11.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,536,267 km

• M1: 102,026 km (0.1 R)
• M2: 503,098 km (0.084 R)
• M3: 799,002 km (0.09 R)
• M4: 1,213,089 km (0.094 R)
• M5: 1,520,513 km (0.103 R)
• M6: 1,975,440 km (0.117 R)
• M7: 2,268,652 km (0.037 R)
• M8: 2,802,118 km (0.067 R)
• M9: 3,328,702 km (0.102 R)
• M10: 4,158,671 km (0.087 R)
• M11: 4,710,089 km (0.115 R)
• M12: 6,063,052 km (0.114 R)
• M13: 6,603,848 km (0.045 R)
• M14: 7,324,611 km (0.086 R)
• M15: 7,627,247 km (0.071 R)
• M16: 9,302,444 km (0.107 R)
• M17: 10,244,761 km (0.089 R)
• M18: 11,051,244 km (0.064 R)
• M19: 11,369,289 km (0.118 R)
• M20: 13,185,257 km (0.105 R)
• M21: 14,895,759 km (0.059 R)
• M22: 16,335,938 km (0.101 R)
• M23: 17,596,300 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 12.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.71 AU - 3.53 AU

Year: 3615 Days

Day: 12.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,536,267 km

• M1: 157,975 km (0.099 R)
• M2: 718,070 km (0.082 R)
• M3: 1,745,658 km (0.091 R)
• M4: 2,633,820 km (0.051 R)
• M5: 3,062,268 km (0.108 R)
• M6: 3,901,512 km (0.087 R)
• M7: 5,720,174 km (0.113 R)
• M8: 6,252,144 km (0.052 R)
• M9: 6,758,981 km (0.086 R)
• M10: 7,415,566 km (0.087 R)
• M11: 8,581,682 km (0.083 R)
• M12: 9,979,076 km (0.081 R)
• M13: 11,153,269 km (0.113 R)
• M14: 13,357,893 km (0.09 R)
• M15: 17,434,435 km (0.054 R)
• M16: 18,901,541 km (0.077 R)
• M17: 20,206,035 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.4

Radius: 8.6

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.63 AU - 4.01 AU

Year: 4898 Days

Day: 10.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 32,536,267 km

• M1: 106,962 km (0.076 R)
• M2: 381,475 km (0.095 R)
• M3: 851,511 km (0.069 R)
• M4: 1,185,713 km (0.113 R)
• M5: 1,460,225 km (0.05 R)
• M6: 2,170,067 km (0.095 R)
• M7: 3,074,386 km (0.114 R)
• M8: 4,444,104 km (0.088 R)
• M9: 5,066,431 km (0.098 R)
• M10: 5,917,344 km (0.117 R)
• M11: 6,576,771 km (0.077 R)
• M12: 6,892,273 km (0.109 R)
• M13: 7,691,126 km (0.05 R)
• M14: 8,550,266 km (0.116 R)
• M15: 9,313,814 km (0.089 R)
• M16: 10,331,528 km (0.07 R)
• M17: 11,020,576 km (0.091 R)
• M18: 11,511,855 km (0.102 R)
• M19: 12,158,118 km (0.071 R)
• M20: 12,731,078 km (0.096 R)
• M21: 13,372,105 km (0.037 R)
• M22: 16,962,603 km (0.112 R)
• M23: 17,317,749 km (0.101 R)
• M24: 18,978,285 km (0.108 R)
• M25: 19,749,312 km (0.117 R)
• M26: 20,407,693 km (0.102 R)
• M27: 21,217,017 km (0.066 R)
• M28: 22,541,706 km (0.101 R)
• M29: 23,115,713 km (0.103 R)
• M30: 23,479,386 km (0.082 R)
• M31: 24,972,373 km (0.104 R)
• M32: 25,587,070 km (0.108 R)
• M33: 26,054,564 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.9

Radius: 8.8

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.5 AU - 6.08 AU

Year: 7982 Days

Day: 5.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 32,536,267 km

• M1: 109,506 km (0.109 R)
• M2: 677,678 km (0.058 R)
• M3: 1,413,401 km (0.09 R)
• M4: 1,978,282 km (0.084 R)
• M5: 2,606,593 km (0.075 R)
• M6: 3,829,705 km (0.113 R)
• M7: 5,079,745 km (0.08 R)
• M8: 5,463,613 km (0.065 R)
• M9: 6,361,799 km (0.066 R)
• M10: 7,639,814 km (0.1 R)
• M11: 8,058,837 km (0.111 R)
• M12: 9,503,654 km (0.045 R)
• M13: 9,988,650 km (0.081 R)
• M14: 13,074,555 km (0.087 R)
• M15: 16,744,190 km (0.12 R)
• M16: 17,813,366 km (0.066 R)
• M17: 20,724,391 km (0.03 R)
• M18: 21,956,031 km (0.12 R)
• M19: 24,836,388 km (0.071 R)
• M20: 25,478,163 km (0.118 R)
• M21: 26,699,480 km (0.06 R)
• M22: 27,082,899 km (0.078 R)
• M23: 31,761,423 km (0.103 R)
• M24: 33,065,019 km (0.037 R)
• M25: 34,290,974 km (0.108 R)
• M26: 45,346,256 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 192.6

Radius: 6

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.83 AU - 7.91 AU

Year: 10547 Days

Day: 19.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,536,267 km

• M1: 84,822 km (0.118 R)
• M2: 293,810 km (0.105 R)
• M3: 810,372 km (0.082 R)
• M4: 1,079,648 km (0.099 R)
• M5: 1,454,540 km (0.096 R)
• M6: 2,361,402 km (0.089 R)
• M7: 2,566,501 km (0.117 R)
• M8: 2,973,856 km (0.114 R)
• M9: 4,156,726 km (0.111 R)
• M10: 4,482,850 km (0.083 R)
• M11: 5,416,789 km (0.081 R)
• M12: 6,086,240 km (0.091 R)
• M13: 7,625,452 km (0.091 R)
• M14: 10,281,562 km (0.083 R)
• M15: 11,497,793 km (0.072 R)
• M16: 11,693,018 km (0.053 R)
• M17: 16,262,485 km (0.08 R)
• M18: 16,882,718 km (0.107 R)
• M19: 17,198,669 km (0.028 R)
• M20: 25,352,052 km (0.114 R)
• M21: 26,865,085 km (0.106 R)
• M22: 27,818,622 km (0.11 R)
• M23: 29,155,129 km (0.072 R)
• M24: 29,609,907 km (0.108 R)
• M25: 30,720,820 km (0.075 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: 165 - 10,324 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit