🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.3

Radius: 8.4

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.57 AU - 0.75 AU

Year: 370 Days

Day: 7 Hours

Environment

Temp: -148 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 36,319,640 km

• M1: 104,569 km (0.092 R)
• M2: 398,379 km (0.085 R)
• M3: 940,073 km (0.076 R)
• M4: 1,266,944 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.7

Radius: 11.1

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.6 AU - 0.76 AU

Year: 387 Days

Day: 7.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,319,640 km

• M1: 138,079 km (0.096 R)
• M2: 509,381 km (0.094 R)
• M3: 889,808 km (0.12 R)
• M4: 1,410,409 km (0.068 R)
• M5: 1,798,914 km (0.113 R)
• M6: 2,386,385 km (0.098 R)
• M7: 2,839,368 km (0.062 R)
• M8: 3,302,672 km (0.113 R)
• M9: 3,946,242 km (0.072 R)
• M10: 4,569,018 km (0.09 R)
• M11: 5,004,348 km (0.085 R)
• M12: 5,401,830 km (0.094 R)
• M13: 5,785,997 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797

Radius: 9.6

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.66 AU - 0.82 AU

Year: 439 Days

Day: 14.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,319,640 km

• M1: 119,379 km (0.087 R)
• M2: 449,392 km (0.054 R)
• M3: 809,025 km (0.067 R)
• M4: 1,565,841 km (0.061 R)
• M5: 1,889,870 km (0.119 R)
• M6: 2,231,701 km (0.071 R)
• M7: 3,272,453 km (0.085 R)
• M8: 3,861,420 km (0.099 R)
• M9: 4,775,314 km (0.036 R)
• M10: 5,283,498 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 11.4

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.71 AU - 0.85 AU

Year: 476 Days

Day: 13.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,319,640 km

• M1: 141,819 km (0.063 R)
• M2: 541,544 km (0.111 R)
• M3: 943,663 km (0.058 R)
• M4: 1,739,823 km (0.109 R)
• M5: 2,216,442 km (0.062 R)
• M6: 2,727,319 km (0.082 R)
• M7: 3,164,145 km (0.101 R)
• M8: 5,384,327 km (0.111 R)
• M9: 5,740,519 km (0.101 R)
• M10: 6,276,827 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.9

Radius: 8.5

Gravity: 13.13 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.03 AU - 3.13 AU

Year: 2860 Days

Day: 13.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,319,640 km

• M1: 105,766 km (0.071 R)
• M2: 484,099 km (0.059 R)
• M3: 883,824 km (0.09 R)
• M4: 1,539,661 km (0.094 R)
• M5: 2,472,703 km (0.118 R)
• M6: 2,756,490 km (0.111 R)
• M7: 4,160,915 km (0.111 R)
• M8: 5,477,077 km (0.062 R)
• M9: 5,824,892 km (0.095 R)
• M10: 6,130,670 km (0.113 R)
• M11: 6,476,541 km (0.11 R)
• M12: 6,896,462 km (0.053 R)
• M13: 7,724,486 km (0.073 R)
• M14: 9,808,534 km (0.041 R)
• M15: 10,403,186 km (0.09 R)
• M16: 11,148,333 km (0.067 R)
• M17: 11,447,528 km (0.074 R)
• M18: 12,560,237 km (0.061 R)
• M19: 13,841,094 km (0.057 R)
• M20: 15,949,527 km (0.099 R)
• M21: 18,560,009 km (0.116 R)
• M22: 23,128,130 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.8

Radius: 13.8

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.9 AU - 3.64 AU

Year: 4082 Days

Day: 11.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,319,640 km

• M1: 171,888 km (0.11 R)
• M2: 657,483 km (0.093 R)
• M3: 1,116,000 km (0.108 R)
• M4: 1,661,135 km (0.109 R)
• M5: 2,199,986 km (0.074 R)
• M6: 2,909,230 km (0.116 R)
• M7: 3,638,071 km (0.081 R)
• M8: 4,081,180 km (0.088 R)
• M9: 4,635,440 km (0.083 R)
• M10: 5,157,985 km (0.03 R)
• M11: 6,106,884 km (0.057 R)
• M12: 7,479,146 km (0.091 R)
• M13: 9,088,071 km (0.042 R)
• M14: 9,995,531 km (0.113 R)
• M15: 10,559,665 km (0.063 R)
• M16: 11,099,264 km (0.08 R)
• M17: 11,847,254 km (0.082 R)
• M18: 13,134,244 km (0.076 R)
• M19: 14,240,221 km (0.054 R)
• M20: 16,338,780 km (0.093 R)
• M21: 17,680,224 km (0.066 R)
• M22: 20,512,710 km (0.116 R)
• M23: 25,509,279 km (0.028 R)
• M24: 28,159,854 km (0.078 R)
• M25: 29,199,560 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.8

Radius: 7.5

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.93 AU - 6.83 AU

Year: 11124 Days

Day: 17.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,319,640 km

• M1: 94,247 km (0.027 R)
• M2: 410,048 km (0.084 R)
• M3: 731,982 km (0.113 R)
• M4: 1,030,131 km (0.119 R)
• M5: 1,408,913 km (0.113 R)
• M6: 1,977,085 km (0.11 R)
• M7: 2,239,929 km (0.105 R)
• M8: 4,372,297 km (0.099 R)
• M9: 8,462,004 km (0.083 R)
• M10: 11,101,060 km (0.105 R)
• M11: 11,823,617 km (0.043 R)
• M12: 12,109,648 km (0.119 R)
• M13: 13,924,420 km (0.065 R)
• M14: 15,637,765 km (0.102 R)
• M15: 16,262,186 km (0.071 R)
• M16: 16,545,076 km (0.077 R)
• M17: 17,339,740 km (0.115 R)
• M18: 19,083,452 km (0.115 R)
• M19: 20,038,036 km (0.066 R)
• M20: 25,673,388 km (0.114 R)
• M21: 26,153,597 km (0.066 R)
• M22: 27,131,967 km (0.096 R)
• M23: 28,338,025 km (0.097 R)
• M24: 28,954,219 km (0.05 R)
• M25: 38,921,626 km (0.109 R)
• M26: 41,235,307 km (0.096 R)
• M27: 42,693,587 km (0.089 R)
• M28: 44,460,786 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.2

Radius: 5.2

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 7.76 AU - 8.7 AU

Year: 16297 Days

Day: 20.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 153.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,319,640 km

• M1: 65,075 km (0.06 R)
• M2: 372,499 km (0.079 R)
• M3: 1,073,215 km (0.093 R)
• M4: 1,391,410 km (0.075 R)
• M5: 1,632,412 km (0.057 R)
• M6: 2,789,252 km (0.116 R)
• M7: 4,252,170 km (0.047 R)
• M8: 6,500,027 km (0.068 R)
• M9: 7,029,305 km (0.052 R)
• M10: 9,303,940 km (0.112 R)
• M11: 9,702,918 km (0.117 R)
• M12: 11,264,420 km (0.068 R)
• M13: 14,460,280 km (0.115 R)
• M14: 15,420,997 km (0.08 R)
• M15: 17,468,843 km (0.104 R)
• M16: 17,939,777 km (0.111 R)
• M17: 18,350,124 km (0.116 R)
• M18: 19,981,488 km (0.106 R)
• M19: 21,323,680 km (0.074 R)
• M20: 22,724,964 km (0.098 R)
• M21: 27,026,651 km (0.114 R)
• M22: 27,475,594 km (0.04 R)
• M23: 28,112,282 km (0.085 R)
• M24: 31,841,009 km (0.11 R)
• M25: 32,442,393 km (0.055 R)
• M26: 34,396,889 km (0.109 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 338 - 18,045 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit