🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.3

Radius: 14.5

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.92 AU - 1.08 AU

Year: 667 Days

Day: 12 Hours

Environment

Temp: -169 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,248,676 km

• M1: 180,415 km (0.096 R)
• M2: 644,019 km (0.103 R)
• M3: 1,279,361 km (0.029 R)
• M4: 1,760,917 km (0.048 R)
• M5: 2,559,021 km (0.099 R)
• M6: 3,242,683 km (0.075 R)
• M7: 3,736,955 km (0.091 R)
• M8: 4,781,597 km (0.068 R)
• M9: 5,285,592 km (0.104 R)
• M10: 5,975,089 km (0.092 R)
• M11: 6,723,975 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.7

Radius: 14.1

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.86 AU - 1.32 AU

Year: 759 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,248,676 km

• M1: 175,329 km (0.12 R)
• M2: 625,020 km (0.091 R)
• M3: 1,111,961 km (0.119 R)
• M4: 2,364,544 km (0.11 R)
• M5: 3,137,067 km (0.117 R)
• M6: 3,950,880 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.3

Radius: 9.8

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.97 AU - 1.39 AU

Year: 855 Days

Day: 10.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,248,676 km

• M1: 121,922 km (0.051 R)
• M2: 484,548 km (0.042 R)
• M3: 825,032 km (0.117 R)
• M4: 1,227,301 km (0.078 R)
• M5: 1,558,511 km (0.098 R)
• M6: 1,978,282 km (0.117 R)
• M7: 2,473,002 km (0.094 R)
• M8: 2,921,497 km (0.058 R)
• M9: 3,313,443 km (0.112 R)
• M10: 3,710,775 km (0.098 R)
• M11: 4,076,542 km (0.107 R)
• M12: 4,483,149 km (0.11 R)
• M13: 4,952,438 km (0.036 R)
• M14: 6,581,858 km (0.086 R)
• M15: 6,914,862 km (0.108 R)
• M16: 7,329,248 km (0.118 R)
• M17: 9,264,746 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 8.3

Gravity: 12.65 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.61 AU - 1.67 AU

Year: 1401 Days

Day: 11.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,248,676 km

• M1: 103,522 km (0.061 R)
• M2: 379,979 km (0.098 R)
• M3: 762,800 km (0.093 R)
• M4: 1,097,001 km (0.11 R)
• M5: 1,519,466 km (0.054 R)
• M6: 2,173,358 km (0.087 R)
• M7: 2,506,213 km (0.114 R)
• M8: 4,119,177 km (0.063 R)
• M9: 4,771,274 km (0.072 R)
• M10: 5,038,157 km (0.109 R)
• M11: 5,647,020 km (0.101 R)
• M12: 7,169,478 km (0.112 R)
• M13: 7,520,435 km (0.119 R)
• M14: 7,939,608 km (0.041 R)
• M15: 8,794,410 km (0.041 R)
• M16: 9,102,881 km (0.104 R)
• M17: 11,396,515 km (0.079 R)
• M18: 11,875,229 km (0.066 R)
• M19: 12,214,367 km (0.05 R)
• M20: 13,150,700 km (0.113 R)
• M21: 13,966,756 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.5

Radius: 13.6

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.84 AU - 3.5 AU

Year: 3764 Days

Day: 13.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,248,676 km

• M1: 169,195 km (0.116 R)
• M2: 768,933 km (0.077 R)
• M3: 1,201,869 km (0.032 R)
• M4: 1,651,112 km (0.079 R)
• M5: 2,200,435 km (0.083 R)
• M6: 2,736,594 km (0.068 R)
• M7: 3,397,966 km (0.105 R)
• M8: 4,054,252 km (0.081 R)
• M9: 4,769,479 km (0.09 R)
• M10: 5,432,946 km (0.084 R)
• M11: 6,882,549 km (0.118 R)
• M12: 7,430,077 km (0.029 R)
• M13: 8,539,944 km (0.117 R)
• M14: 9,520,857 km (0.109 R)
• M15: 11,131,428 km (0.116 R)
• M16: 12,024,677 km (0.113 R)
• M17: 13,652,302 km (0.048 R)
• M18: 18,054,817 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.8

Radius: 13.7

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.91 AU - 3.51 AU

Year: 3835 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,248,676 km

• M1: 170,392 km (0.035 R)
• M2: 650,302 km (0.081 R)
• M3: 2,187,719 km (0.074 R)
• M4: 2,645,788 km (0.086 R)
• M5: 3,422,650 km (0.106 R)
• M6: 4,826,775 km (0.098 R)
• M7: 5,965,813 km (0.06 R)
• M8: 6,586,345 km (0.092 R)
• M9: 7,611,689 km (0.113 R)
• M10: 8,929,198 km (0.048 R)
• M11: 9,378,889 km (0.079 R)
• M12: 10,640,597 km (0.084 R)
• M13: 12,842,379 km (0.119 R)
• M14: 13,667,561 km (0.091 R)
• M15: 14,136,400 km (0.06 R)
• M16: 14,571,880 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.3

Radius: 13.9

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.37 AU - 3.49 AU

Year: 4236 Days

Day: 13.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,248,676 km

• M1: 172,935 km (0.111 R)
• M2: 619,784 km (0.072 R)
• M3: 1,191,098 km (0.034 R)
• M4: 1,644,679 km (0.085 R)
• M5: 2,164,831 km (0.074 R)
• M6: 2,779,678 km (0.116 R)
• M7: 3,281,429 km (0.057 R)
• M8: 5,047,133 km (0.11 R)
• M9: 5,800,209 km (0.108 R)
• M10: 7,171,722 km (0.119 R)
• M11: 7,839,826 km (0.11 R)
• M12: 9,948,258 km (0.048 R)
• M13: 11,658,312 km (0.103 R)
• M14: 12,497,406 km (0.085 R)
• M15: 12,975,820 km (0.111 R)
• M16: 14,202,373 km (0.096 R)
• M17: 16,006,823 km (0.095 R)
• M18: 16,468,033 km (0.109 R)
• M19: 17,363,376 km (0.113 R)
• M20: 17,850,317 km (0.101 R)
• M21: 18,569,883 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.6

Radius: 14.9

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.74 AU - 4.18 AU

Year: 4292 Days

Day: 9.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,248,676 km

• M1: 185,352 km (0.103 R)
• M2: 651,200 km (0.052 R)
• M3: 1,292,974 km (0.078 R)
• M4: 1,889,870 km (0.092 R)
• M5: 2,413,612 km (0.042 R)
• M6: 3,127,044 km (0.061 R)
• M7: 4,318,292 km (0.078 R)
• M8: 4,827,224 km (0.072 R)
• M9: 8,184,799 km (0.115 R)
• M10: 8,740,256 km (0.053 R)
• M11: 9,926,866 km (0.108 R)
• M12: 12,282,284 km (0.093 R)
• M13: 13,616,249 km (0.08 R)
• M14: 14,081,648 km (0.102 R)
• M15: 15,319,720 km (0.105 R)
• M16: 16,982,949 km (0.03 R)
• M17: 17,766,393 km (0.064 R)
• M18: 20,262,433 km (0.059 R)
• M19: 22,051,025 km (0.047 R)
• M20: 22,911,213 km (0.04 R)
• M21: 25,082,626 km (0.11 R)
• M22: 26,980,724 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.8

Radius: 4.6

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 10.1 AU - 10.84 AU

Year: 22592 Days

Day: 17.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 83,248,676 km

• M1: 81,531 km (0.07 R)
• M2: 366,365 km (0.116 R)
• M3: 750,084 km (0.097 R)
• M4: 3,667,541 km (0.038 R)
• M5: 6,086,090 km (0.114 R)
• M6: 6,599,211 km (0.098 R)
• M7: 7,488,121 km (0.034 R)
• M8: 8,170,288 km (0.084 R)
• M9: 8,502,245 km (0.047 R)
• M10: 9,397,589 km (0.093 R)
• M11: 10,081,999 km (0.1 R)
• M12: 10,353,818 km (0.119 R)
• M13: 11,141,301 km (0.086 R)
• M14: 19,679,001 km (0.068 R)
• M15: 20,534,402 km (0.069 R)
• M16: 21,414,486 km (0.082 R)
• M17: 23,438,396 km (0.118 R)
• M18: 39,646,428 km (0.119 R)
• M19: 42,825,083 km (0.077 R)
• M20: 49,215,455 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697.1

Radius: 3.6

Gravity: 53.79 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 8.1 AU - 12.9 AU

Year: 22689 Days

Day: 19.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,248,676 km

• M1: 44,879 km (0.06 R)
• M2: 158,574 km (0.114 R)
• M3: 571,613 km (0.086 R)
• M4: 782,696 km (0.085 R)
• M5: 1,238,670 km (0.106 R)
• M6: 1,593,217 km (0.093 R)
• M7: 2,452,208 km (0.11 R)
• M8: 2,745,719 km (0.042 R)
• M9: 5,906,124 km (0.093 R)
• M10: 7,180,847 km (0.109 R)
• M11: 7,986,133 km (0.056 R)
• M12: 8,573,454 km (0.071 R)
• M13: 9,537,014 km (0.079 R)
• M14: 13,513,774 km (0.069 R)
• M15: 14,192,051 km (0.11 R)
• M16: 15,291,894 km (0.092 R)
• M17: 16,111,541 km (0.117 R)
• M18: 16,787,873 km (0.117 R)
• M19: 17,927,061 km (0.111 R)
• M20: 19,210,461 km (0.109 R)
• M21: 19,683,340 km (0.113 R)
• M22: 23,533,241 km (0.047 R)
• M23: 25,862,031 km (0.115 R)
• M24: 31,883,345 km (0.091 R)
• M25: 32,679,206 km (0.095 R)
• M26: 32,947,435 km (0.086 R)
• M27: 37,003,482 km (0.056 R)
• M28: 37,441,205 km (0.055 R)
• M29: 50,782,493 km (0.072 R)
• M30: 55,976,232 km (0.086 R)
• M31: 56,360,250 km (0.11 R)
• M32: 57,522,625 km (0.062 R)
• M33: 63,575,206 km (0.116 R)
• M34: 73,888,483 km (0.118 R)
• M35: 77,400,592 km (0.104 R)
• M36: 80,533,022 km (0.057 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 17,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit