🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.9

Radius: 10.1

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.5 AU - 0.52 AU

Year: 251 Days

Day: 10.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,209,773 km

• M1: 125,662 km (0.089 R)
• M2: 484,099 km (0.076 R)
• M3: 830,418 km (0.098 R)
• M4: 1,277,865 km (0.071 R)
• M5: 1,612,815 km (0.108 R)
• M6: 1,955,244 km (0.058 R)
• M7: 2,914,615 km (0.119 R)
• M8: 3,450,475 km (0.073 R)
• M9: 4,002,192 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.8

Radius: 14.5

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.66 AU - 1.02 AU

Year: 531 Days

Day: 13.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,209,773 km

• M1: 180,415 km (0.084 R)
• M2: 656,884 km (0.11 R)
• M3: 1,145,770 km (0.081 R)
• M4: 1,914,254 km (0.109 R)
• M5: 2,443,681 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.6

Radius: 10.3

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.98 AU - 1.56 AU

Year: 988 Days

Day: 8.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 65.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,209,773 km

• M1: 129,402 km (0.099 R)
• M2: 647,908 km (0.056 R)
• M3: 1,373,159 km (0.114 R)
• M4: 1,693,747 km (0.103 R)
• M5: 2,033,633 km (0.032 R)
• M6: 2,373,071 km (0.088 R)
• M7: 2,712,359 km (0.068 R)
• M8: 3,690,430 km (0.03 R)
• M9: 4,131,893 km (0.051 R)
• M10: 5,401,830 km (0.03 R)
• M11: 6,016,228 km (0.094 R)
• M12: 6,891,226 km (0.114 R)
• M13: 7,410,031 km (0.1 R)
• M14: 8,359,828 km (0.091 R)
• M15: 8,864,272 km (0.042 R)
• M16: 10,245,958 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 9.5

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.04 AU - 3.76 AU

Year: 4327 Days

Day: 6.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,209,773 km

• M1: 118,182 km (0.1 R)
• M2: 413,638 km (0.12 R)
• M3: 1,022,501 km (0.065 R)
• M4: 1,827,039 km (0.088 R)
• M5: 2,266,258 km (0.096 R)
• M6: 2,648,929 km (0.093 R)
• M7: 4,958,721 km (0.068 R)
• M8: 5,276,466 km (0.113 R)
• M9: 7,228,270 km (0.1 R)
• M10: 8,782,442 km (0.092 R)
• M11: 10,310,285 km (0.109 R)
• M12: 11,075,478 km (0.084 R)
• M13: 12,315,495 km (0.082 R)
• M14: 13,363,129 km (0.067 R)
• M15: 14,370,521 km (0.068 R)
• M16: 14,667,323 km (0.118 R)
• M17: 20,613,839 km (0.098 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.5

Radius: 7.6

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.75 AU - 7.25 AU

Year: 11439 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,209,773 km

• M1: 94,995 km (0.094 R)
• M2: 405,111 km (0.099 R)
• M3: 1,005,298 km (0.117 R)
• M4: 1,519,615 km (0.118 R)
• M5: 2,101,700 km (0.04 R)
• M6: 2,524,614 km (0.046 R)
• M7: 2,766,214 km (0.111 R)
• M8: 3,147,240 km (0.091 R)
• M9: 3,517,644 km (0.116 R)
• M10: 3,820,131 km (0.109 R)
• M11: 5,540,507 km (0.101 R)
• M12: 6,904,690 km (0.11 R)
• M13: 7,684,095 km (0.113 R)
• M14: 10,186,867 km (0.097 R)
• M15: 11,195,456 km (0.093 R)
• M16: 11,852,191 km (0.101 R)
• M17: 14,501,120 km (0.093 R)
• M18: 15,281,422 km (0.105 R)
• M19: 18,474,739 km (0.113 R)
• M20: 20,411,881 km (0.117 R)
• M21: 22,559,658 km (0.082 R)
• M22: 25,023,236 km (0.051 R)
• M23: 25,364,618 km (0.056 R)
• M24: 27,479,184 km (0.104 R)
• M25: 28,117,518 km (0.098 R)
• M26: 28,393,975 km (0.099 R)
• M27: 29,140,319 km (0.041 R)
• M28: 31,556,923 km (0.072 R)
• M29: 32,055,832 km (0.099 R)
• M30: 34,947,259 km (0.071 R)
• M31: 36,129,232 km (0.034 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 319.8

Radius: 4.2

Gravity: 18.13 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 6.21 AU - 8.31 AU

Year: 13503 Days

Day: 20.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,209,773 km

• M1: 308,172 km (0.078 R)
• M2: 703,260 km (0.107 R)
• M3: 1,314,516 km (0.06 R)
• M4: 3,864,861 km (0.117 R)
• M5: 4,023,734 km (0.106 R)
• M6: 4,440,065 km (0.057 R)
• M7: 4,585,025 km (0.094 R)
• M8: 6,961,537 km (0.03 R)
• M9: 13,638,090 km (0.102 R)
• M10: 14,006,849 km (0.077 R)
• M11: 18,588,283 km (0.107 R)
• M12: 20,847,810 km (0.028 R)
• M13: 24,615,133 km (0.094 R)
• M14: 25,161,614 km (0.108 R)
• M15: 27,138,101 km (0.086 R)
• M16: 29,114,438 km (0.072 R)
• M17: 39,077,806 km (0.098 R)
• M18: 42,237,164 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.7

Radius: 4.8

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 7.75 AU - 9.31 AU

Year: 17196 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,209,773 km

• M1: 59,839 km (0.099 R)
• M2: 582,684 km (0.082 R)
• M3: 965,056 km (0.074 R)
• M4: 1,711,250 km (0.106 R)
• M5: 1,886,728 km (0.045 R)
• M6: 3,688,336 km (0.086 R)
• M7: 4,515,462 km (0.07 R)
• M8: 5,488,447 km (0.119 R)
• M9: 5,722,418 km (0.102 R)
• M10: 8,479,357 km (0.025 R)
• M11: 9,031,672 km (0.071 R)
• M12: 10,428,168 km (0.103 R)
• M13: 14,124,732 km (0.079 R)
• M14: 14,675,551 km (0.055 R)
• M15: 20,571,652 km (0.098 R)
• M16: 26,689,756 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.6

Radius: 3.9

Gravity: 45.21 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.37 AU - 9.81 AU

Year: 17378 Days

Day: 23.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,209,773 km

• M1: 48,470 km (0.044 R)
• M2: 183,856 km (0.116 R)
• M3: 359,932 km (0.094 R)
• M4: 709,094 km (0.062 R)
• M5: 859,440 km (0.056 R)
• M6: 1,281,007 km (0.093 R)
• M7: 1,412,952 km (0.093 R)
• M8: 1,810,134 km (0.099 R)
• M9: 2,034,830 km (0.081 R)
• M10: 2,235,890 km (0.114 R)
• M11: 2,678,101 km (0.091 R)
• M12: 4,097,785 km (0.078 R)
• M13: 4,552,114 km (0.065 R)
• M14: 5,521,807 km (0.103 R)
• M15: 5,676,342 km (0.078 R)
• M16: 6,198,588 km (0.11 R)
• M17: 7,154,369 km (0.095 R)
• M18: 9,190,246 km (0.099 R)
• M19: 10,137,201 km (0.064 R)
• M20: 10,486,362 km (0.098 R)
• M21: 12,551,860 km (0.053 R)
• M22: 13,785,294 km (0.039 R)
• M23: 16,730,577 km (0.07 R)
• M24: 18,306,441 km (0.083 R)
• M25: 19,086,444 km (0.11 R)
• M26: 31,084,343 km (0.12 R)
• M27: 32,192,564 km (0.067 R)
• M28: 34,227,544 km (0.039 R)
• M29: 38,692,143 km (0.097 R)
• M30: 38,833,214 km (0.109 R)
• M31: 39,830,134 km (0.103 R)
• M32: 41,430,831 km (0.116 R)
• M33: 43,377,399 km (0.116 R)
• M34: 46,171,887 km (0.059 R)
• M35: 47,775,127 km (0.043 R)
• M36: 49,415,169 km (0.111 R)
• M37: 54,382,416 km (0.118 R)
• M38: 57,627,194 km (0.116 R)
• M39: 63,513,870 km (0.071 R)
• M40: 64,301,354 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595.5

Radius: 8

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 9.51 AU - 10.55 AU

Year: 21926 Days

Day: 16.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 77,209,773 km

• M1: 99,632 km (0.09 R)
• M2: 564,283 km (0.105 R)
• M3: 887,415 km (0.04 R)
• M4: 1,651,261 km (0.102 R)
• M5: 1,999,675 km (0.084 R)
• M6: 2,352,576 km (0.12 R)
• M7: 3,184,041 km (0.102 R)
• M8: 3,491,315 km (0.055 R)
• M9: 3,787,818 km (0.113 R)
• M10: 4,744,347 km (0.038 R)
• M11: 5,413,947 km (0.074 R)
• M12: 7,605,107 km (0.099 R)
• M13: 8,951,039 km (0.086 R)
• M14: 9,565,886 km (0.088 R)
• M15: 11,644,549 km (0.081 R)
• M16: 11,973,814 km (0.072 R)
• M17: 13,860,093 km (0.075 R)
• M18: 14,606,437 km (0.116 R)
• M19: 18,566,143 km (0.07 R)
• M20: 22,878,451 km (0.052 R)
• M21: 29,973,579 km (0.117 R)
• M22: 31,346,439 km (0.086 R)
• M23: 32,760,737 km (0.115 R)
• M24: 41,079,127 km (0.117 R)
• M25: 41,383,409 km (0.043 R)
• M26: 42,927,558 km (0.104 R)
• M27: 44,830,742 km (0.034 R)
• M28: 47,958,085 km (0.06 R)
• M29: 49,488,920 km (0.102 R)
• M30: 51,757,423 km (0.079 R)
• M31: 58,784,184 km (0.118 R)
• M32: 61,128,682 km (0.107 R)
• M33: 63,129,404 km (0.098 R)
• M34: 64,967,214 km (0.068 R)
• M35: 68,963,272 km (0.11 R)
• M36: 72,010,581 km (0.105 R)
• M37: 75,373,840 km (0.207 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 12,767 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit