🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.2

Radius: 14.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.54 AU - 0.86 AU

Year: 372 Days

Day: 10.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,709,765 km

• M1: 176,675 km (0.09 R)
• M2: 800,199 km (0.101 R)
• M3: 1,274,723 km (0.101 R)
• M4: 1,943,875 km (0.109 R)
• M5: 2,545,857 km (0.077 R)
• M6: 2,992,556 km (0.117 R)
• M7: 3,655,873 km (0.092 R)
• M8: 4,155,530 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 10.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.03 AU - 3.17 AU

Year: 2666 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,709,765 km

• M1: 138,827 km (0.112 R)
• M2: 594,053 km (0.101 R)
• M3: 2,160,792 km (0.062 R)
• M4: 3,067,654 km (0.067 R)
• M5: 3,441,050 km (0.062 R)
• M6: 6,316,620 km (0.036 R)
• M7: 7,470,020 km (0.1 R)
• M8: 7,963,543 km (0.12 R)
• M9: 8,987,092 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.3

Radius: 8.4

Gravity: 11.44 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.41 AU - 2.85 AU

Year: 2712 Days

Day: 10.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,709,765 km

• M1: 104,419 km (0.109 R)
• M2: 374,892 km (0.118 R)
• M3: 709,244 km (0.119 R)
• M4: 1,165,068 km (0.091 R)
• M5: 1,624,034 km (0.111 R)
• M6: 1,939,536 km (0.114 R)
• M7: 2,453,405 km (0.085 R)
• M8: 2,758,884 km (0.107 R)
• M9: 3,354,882 km (0.112 R)
• M10: 4,395,634 km (0.112 R)
• M11: 4,755,567 km (0.04 R)
• M12: 5,233,083 km (0.087 R)
• M13: 5,509,091 km (0.098 R)
• M14: 5,794,973 km (0.119 R)
• M15: 7,099,167 km (0.116 R)
• M16: 7,950,229 km (0.111 R)
• M17: 8,797,402 km (0.103 R)
• M18: 9,517,417 km (0.076 R)
• M19: 10,198,536 km (0.115 R)
• M20: 10,750,552 km (0.094 R)
• M21: 11,405,491 km (0.097 R)
• M22: 12,526,129 km (0.114 R)
• M23: 14,004,156 km (0.11 R)
• M24: 15,750,113 km (0.064 R)
• M25: 19,789,405 km (0.045 R)
• M26: 20,276,795 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.1

Radius: 10.5

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.61 AU - 2.87 AU

Year: 2884 Days

Day: 8.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,709,765 km

• M1: 132,394 km (0.113 R)
• M2: 502,948 km (0.048 R)
• M3: 876,195 km (0.074 R)
• M4: 1,335,909 km (0.028 R)
• M5: 1,893,909 km (0.116 R)
• M6: 2,248,157 km (0.105 R)
• M7: 3,816,840 km (0.103 R)
• M8: 4,739,859 km (0.108 R)
• M9: 5,425,466 km (0.081 R)
• M10: 5,935,894 km (0.118 R)
• M11: 7,053,091 km (0.106 R)
• M12: 8,011,265 km (0.103 R)
• M13: 8,914,687 km (0.119 R)
• M14: 9,736,577 km (0.115 R)
• M15: 10,963,130 km (0.05 R)
• M16: 11,864,158 km (0.114 R)
• M17: 12,902,816 km (0.113 R)
• M18: 13,953,891 km (0.118 R)
• M19: 14,913,561 km (0.036 R)
• M20: 15,610,987 km (0.039 R)
• M21: 17,341,236 km (0.111 R)
• M22: 17,669,005 km (0.081 R)
• M23: 18,168,512 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.3

Radius: 13.3

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.64 AU - 4.08 AU

Year: 3916 Days

Day: 6 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,709,765 km

• M1: 165,455 km (0.042 R)
• M2: 590,164 km (0.081 R)
• M3: 1,209,349 km (0.117 R)
• M4: 1,870,721 km (0.106 R)
• M5: 3,440,302 km (0.103 R)
• M6: 4,364,817 km (0.059 R)
• M7: 7,435,762 km (0.057 R)
• M8: 8,479,806 km (0.081 R)
• M9: 10,290,239 km (0.069 R)
• M10: 12,153,032 km (0.108 R)
• M11: 12,937,822 km (0.118 R)
• M12: 15,103,401 km (0.101 R)
• M13: 15,666,338 km (0.118 R)
• M14: 16,536,997 km (0.097 R)
• M15: 17,135,239 km (0.084 R)
• M16: 21,102,126 km (0.089 R)
• M17: 21,735,075 km (0.085 R)
• M18: 22,236,078 km (0.113 R)
• M19: 23,560,019 km (0.118 R)
• M20: 24,548,412 km (0.074 R)
• M21: 25,170,291 km (0.067 R)
• M22: 26,203,114 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.3

Radius: 14

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.48 AU - 4.5 AU

Year: 6049 Days

Day: 10.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,709,765 km

• M1: 174,730 km (0.089 R)
• M2: 1,034,619 km (0.076 R)
• M3: 2,047,696 km (0.107 R)
• M4: 2,872,578 km (0.105 R)
• M5: 3,450,325 km (0.117 R)
• M6: 4,225,392 km (0.117 R)
• M7: 6,097,609 km (0.092 R)
• M8: 8,538,149 km (0.111 R)
• M9: 9,212,386 km (0.065 R)
• M10: 11,692,570 km (0.076 R)
• M11: 12,229,177 km (0.109 R)
• M12: 13,984,259 km (0.048 R)
• M13: 14,826,645 km (0.067 R)
• M14: 15,358,017 km (0.098 R)
• M15: 18,873,716 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.5

Radius: 4.5

Gravity: 16.22 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.1 AU - 7.74 AU

Year: 11574 Days

Day: 23.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,709,765 km

• M1: 56,398 km (0.088 R)
• M2: 284,984 km (0.093 R)
• M3: 1,286,392 km (0.047 R)
• M4: 1,434,943 km (0.085 R)
• M5: 2,861,209 km (0.11 R)
• M6: 3,226,676 km (0.062 R)
• M7: 3,844,964 km (0.085 R)
• M8: 4,208,786 km (0.05 R)
• M9: 4,510,525 km (0.106 R)
• M10: 5,796,768 km (0.083 R)
• M11: 6,632,272 km (0.101 R)
• M12: 7,348,547 km (0.06 R)
• M13: 7,826,512 km (0.034 R)
• M14: 10,681,737 km (0.085 R)
• M15: 14,467,311 km (0.112 R)
• M16: 15,730,814 km (0.065 R)
• M17: 16,725,491 km (0.064 R)
• M18: 20,731,123 km (0.066 R)
• M19: 22,912,859 km (0.073 R)
• M20: 27,067,341 km (0.1 R)
• M21: 28,880,318 km (0.099 R)
• M22: 29,271,965 km (0.074 R)
• M23: 30,166,411 km (0.109 R)
• M24: 31,078,658 km (0.041 R)
• M25: 35,134,257 km (0.091 R)
• M26: 38,456,526 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.8

Radius: 3.7

Gravity: 24.46 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.81 AU - 8.49 AU

Year: 13453 Days

Day: 22.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,709,765 km

• M1: 46,226 km (0.045 R)
• M2: 177,573 km (0.041 R)
• M3: 447,896 km (0.094 R)
• M4: 1,214,136 km (0.082 R)
• M5: 1,884,784 km (0.09 R)
• M6: 2,226,615 km (0.095 R)
• M7: 2,922,245 km (0.105 R)
• M8: 4,234,817 km (0.115 R)
• M9: 6,546,702 km (0.106 R)
• M10: 8,648,702 km (0.1 R)
• M11: 9,583,090 km (0.099 R)
• M12: 12,266,277 km (0.056 R)
• M13: 13,082,035 km (0.086 R)
• M14: 15,212,458 km (0.098 R)
• M15: 16,016,397 km (0.092 R)
• M16: 16,918,771 km (0.087 R)
• M17: 17,781,502 km (0.085 R)
• M18: 18,001,561 km (0.052 R)
• M19: 21,195,475 km (0.108 R)
• M20: 23,935,959 km (0.08 R)
• M21: 25,951,191 km (0.046 R)
• M22: 26,615,406 km (0.102 R)
• M23: 41,869,302 km (0.08 R)
• M24: 42,128,855 km (0.098 R)
• M25: 43,045,591 km (0.113 R)
• M26: 44,918,705 km (0.115 R)
• M27: 45,875,384 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.1

Radius: 4.8

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.95 AU - 9.69 AU

Year: 13904 Days

Day: 16.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,709,765 km

• M1: 60,288 km (0.087 R)
• M2: 214,972 km (0.087 R)
• M3: 590,612 km (0.095 R)
• M4: 792,719 km (0.072 R)
• M5: 1,009,486 km (0.12 R)
• M6: 3,525,723 km (0.088 R)
• M7: 4,334,748 km (0.086 R)
• M8: 4,562,137 km (0.088 R)
• M9: 5,010,033 km (0.091 R)
• M10: 5,165,764 km (0.045 R)
• M11: 6,530,097 km (0.087 R)
• M12: 7,216,003 km (0.084 R)
• M13: 7,740,343 km (0.042 R)
• M14: 8,910,199 km (0.11 R)
• M15: 9,139,084 km (0.116 R)
• M16: 22,021,854 km (0.098 R)
• M17: 28,276,541 km (0.119 R)
• M18: 32,394,821 km (0.105 R)
• M19: 38,685,112 km (0.086 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 255

Radius: 7.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.1 AU - 10.82 AU

Year: 19986 Days

Day: 19.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,709,765 km

• M1: 107,860 km (0.035 R)
• M2: 449,691 km (0.093 R)
• M3: 720,314 km (0.113 R)
• M4: 1,602,492 km (0.083 R)
• M5: 2,133,116 km (0.12 R)
• M6: 3,515,400 km (0.107 R)
• M7: 3,945,345 km (0.092 R)
• M8: 4,409,996 km (0.076 R)
• M9: 5,553,821 km (0.109 R)
• M10: 6,484,021 km (0.08 R)
• M11: 7,131,480 km (0.09 R)
• M12: 8,182,704 km (0.051 R)
• M13: 9,036,310 km (0.1 R)
• M14: 12,925,705 km (0.075 R)
• M15: 14,752,444 km (0.109 R)
• M16: 18,910,368 km (0.054 R)
• M17: 19,561,866 km (0.111 R)
• M18: 25,716,323 km (0.067 R)
• M19: 26,314,415 km (0.067 R)
• M20: 30,319,599 km (0.079 R)
• M21: 37,061,227 km (0.088 R)
• M22: 37,824,326 km (0.033 R)
• M23: 39,513,286 km (0.085 R)
• M24: 46,478,562 km (0.097 R)
• M25: 49,173,867 km (0.107 R)
• M26: 49,786,770 km (0.111 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: 251 - 14,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit