🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.3

Radius: 8.8

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.53 AU - 0.57 AU

Year: 277 Days

Day: 12.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,015,366 km

• M1: 109,506 km (0.086 R)
• M2: 707,748 km (0.098 R)
• M3: 983,905 km (0.047 R)
• M4: 2,372,323 km (0.072 R)
• M5: 2,777,883 km (0.095 R)
• M6: 3,188,978 km (0.112 R)
• M7: 4,003,239 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.5

Radius: 14.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.17 AU - 1.73 AU

Year: 1184 Days

Day: 9.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,015,366 km

• M1: 176,825 km (0.115 R)
• M2: 695,630 km (0.057 R)
• M3: 1,288,935 km (0.106 R)
• M4: 1,879,398 km (0.116 R)
• M5: 2,527,007 km (0.105 R)
• M6: 3,364,606 km (0.044 R)
• M7: 3,809,211 km (0.118 R)
• M8: 4,541,791 km (0.102 R)
• M9: 5,029,181 km (0.106 R)
• M10: 6,380,349 km (0.064 R)
• M11: 7,215,554 km (0.093 R)
• M12: 7,908,641 km (0.087 R)
• M13: 8,450,485 km (0.114 R)
• M14: 9,976,233 km (0.035 R)
• M15: 10,448,813 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.5

Radius: 8.5

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.9 AU - 1.96 AU

Year: 1819 Days

Day: 7.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 86,015,366 km

• M1: 107,112 km (0.103 R)
• M2: 532,568 km (0.096 R)
• M3: 1,140,534 km (0.096 R)
• M4: 1,536,969 km (0.05 R)
• M5: 1,898,397 km (0.111 R)
• M6: 2,459,688 km (0.102 R)
• M7: 3,504,031 km (0.09 R)
• M8: 4,154,333 km (0.045 R)
• M9: 6,883,596 km (0.055 R)
• M10: 7,324,312 km (0.09 R)
• M11: 8,508,678 km (0.096 R)
• M12: 10,954,603 km (0.103 R)
• M13: 12,823,978 km (0.037 R)
• M14: 13,155,038 km (0.108 R)
• M15: 14,138,644 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.7

Radius: 11.5

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.5 AU - 2.96 AU

Year: 3059 Days

Day: 9.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,015,366 km

• M1: 143,165 km (0.098 R)
• M2: 551,119 km (0.062 R)
• M3: 952,938 km (0.09 R)
• M4: 2,006,407 km (0.101 R)
• M5: 3,223,685 km (0.065 R)
• M6: 3,599,026 km (0.1 R)
• M7: 4,326,969 km (0.087 R)
• M8: 5,719,875 km (0.118 R)
• M9: 7,077,326 km (0.101 R)
• M10: 8,254,362 km (0.097 R)
• M11: 10,459,285 km (0.097 R)
• M12: 14,489,152 km (0.116 R)
• M13: 15,205,576 km (0.075 R)
• M14: 19,760,233 km (0.101 R)
• M15: 21,680,023 km (0.108 R)
• M16: 22,279,461 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.6

Radius: 14.5

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.98 AU - 4 AU

Year: 5406 Days

Day: 8.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,015,366 km

• M1: 196,572 km (0.109 R)
• M2: 766,689 km (0.108 R)
• M3: 1,404,724 km (0.072 R)
• M4: 1,918,892 km (0.108 R)
• M5: 2,993,453 km (0.102 R)
• M6: 4,509,179 km (0.12 R)
• M7: 5,174,590 km (0.078 R)
• M8: 5,626,825 km (0.086 R)
• M9: 6,280,867 km (0.098 R)
• M10: 7,081,066 km (0.088 R)
• M11: 8,052,704 km (0.11 R)
• M12: 10,892,969 km (0.071 R)
• M13: 11,911,880 km (0.1 R)
• M14: 12,421,261 km (0.035 R)
• M15: 14,449,359 km (0.114 R)
• M16: 15,734,405 km (0.06 R)
• M17: 16,862,373 km (0.076 R)
• M18: 18,469,952 km (0.07 R)
• M19: 19,279,575 km (0.094 R)
• M20: 20,177,761 km (0.047 R)
• M21: 21,440,965 km (0.075 R)
• M22: 25,017,402 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.6

Radius: 10.1

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.28 AU - 4.86 AU

Year: 5569 Days

Day: 9.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,015,366 km

• M1: 125,662 km (0.069 R)
• M2: 482,752 km (0.119 R)
• M3: 989,141 km (0.078 R)
• M4: 1,347,129 km (0.089 R)
• M5: 1,700,928 km (0.077 R)
• M6: 2,162,437 km (0.061 R)
• M7: 2,566,651 km (0.109 R)
• M8: 3,836,886 km (0.106 R)
• M9: 4,408,200 km (0.062 R)
• M10: 5,399,137 km (0.083 R)
• M11: 5,871,118 km (0.119 R)
• M12: 7,068,649 km (0.083 R)
• M13: 9,139,682 km (0.05 R)
• M14: 9,811,227 km (0.093 R)
• M15: 11,926,092 km (0.089 R)
• M16: 12,423,206 km (0.077 R)
• M17: 15,820,124 km (0.12 R)
• M18: 16,726,538 km (0.076 R)
• M19: 17,161,269 km (0.12 R)
• M20: 19,448,621 km (0.043 R)
• M21: 20,068,255 km (0.087 R)
• M22: 21,565,131 km (0.113 R)
• M23: 22,006,146 km (0.114 R)
• M24: 29,907,158 km (0.105 R)
• M25: 30,732,788 km (0.115 R)
• M26: 31,385,334 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.1

Radius: 12.4

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.71 AU - 5.17 AU

Year: 6345 Days

Day: 6.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,015,366 km

• M1: 154,235 km (0.113 R)
• M2: 564,732 km (0.118 R)
• M3: 969,095 km (0.107 R)
• M4: 1,919,490 km (0.07 R)
• M5: 3,095,928 km (0.106 R)
• M6: 4,099,730 km (0.11 R)
• M7: 4,929,250 km (0.112 R)
• M8: 5,460,472 km (0.041 R)
• M9: 6,261,568 km (0.074 R)
• M10: 6,957,647 km (0.117 R)
• M11: 8,421,911 km (0.111 R)
• M12: 9,139,832 km (0.082 R)
• M13: 9,944,070 km (0.105 R)
• M14: 11,138,758 km (0.089 R)
• M15: 12,320,133 km (0.05 R)
• M16: 12,914,036 km (0.065 R)
• M17: 14,042,603 km (0.111 R)
• M18: 15,606,648 km (0.074 R)
• M19: 16,046,915 km (0.092 R)
• M20: 19,582,062 km (0.026 R)
• M21: 20,094,584 km (0.11 R)
• M22: 20,917,971 km (0.071 R)
• M23: 21,998,367 km (0.06 R)
• M24: 24,861,969 km (0.034 R)
• M25: 28,522,480 km (0.077 R)
• M26: 31,418,246 km (0.094 R)
• M27: 34,504,749 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.3

Radius: 5.8

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.56 AU - 6.42 AU

Year: 9943 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 86,015,366 km

• M1: 72,256 km (0.119 R)
• M2: 550,371 km (0.092 R)
• M3: 770,579 km (0.075 R)
• M4: 998,865 km (0.039 R)
• M5: 1,650,513 km (0.072 R)
• M6: 2,364,843 km (0.108 R)
• M7: 2,591,484 km (0.093 R)
• M8: 2,853,280 km (0.109 R)
• M9: 3,177,160 km (0.117 R)
• M10: 3,477,403 km (0.069 R)
• M11: 4,270,271 km (0.092 R)
• M12: 4,871,954 km (0.057 R)
• M13: 5,271,679 km (0.107 R)
• M14: 6,863,700 km (0.057 R)
• M15: 7,287,211 km (0.105 R)
• M16: 9,157,334 km (0.03 R)
• M17: 11,272,948 km (0.096 R)
• M18: 11,591,890 km (0.049 R)
• M19: 14,240,969 km (0.043 R)
• M20: 15,378,960 km (0.058 R)
• M21: 17,691,893 km (0.048 R)
• M22: 18,856,363 km (0.096 R)
• M23: 24,555,892 km (0.117 R)
• M24: 27,505,663 km (0.111 R)
• M25: 29,564,878 km (0.09 R)
• M26: 32,574,188 km (0.096 R)
• M27: 34,097,543 km (0.11 R)
• M28: 38,590,267 km (0.083 R)
• M29: 39,558,315 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.4

Radius: 7.4

Gravity: 12.83 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 8.2 AU - 13.2 AU

Year: 23739 Days

Day: 21.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 86,015,366 km

• M1: 92,152 km (0.098 R)
• M2: 332,855 km (0.065 R)
• M3: 719,416 km (0.107 R)
• M4: 1,221,467 km (0.049 R)
• M5: 1,672,953 km (0.095 R)
• M6: 3,264,824 km (0.084 R)
• M7: 3,499,094 km (0.12 R)
• M8: 7,067,452 km (0.117 R)
• M9: 7,714,912 km (0.047 R)
• M10: 8,185,696 km (0.111 R)
• M11: 9,417,336 km (0.07 R)
• M12: 11,692,121 km (0.117 R)
• M13: 13,102,530 km (0.066 R)
• M14: 21,170,193 km (0.102 R)
• M15: 22,301,003 km (0.111 R)
• M16: 25,133,041 km (0.083 R)
• M17: 29,944,258 km (0.1 R)
• M18: 38,108,861 km (0.091 R)
• M19: 38,862,086 km (0.12 R)
• M20: 49,221,888 km (0.11 R)
• M21: 50,115,137 km (0.06 R)
• M22: 52,118,253 km (0.114 R)
• M23: 53,233,056 km (0.096 R)
• M24: 54,553,706 km (0.113 R)
• M25: 55,702,917 km (0.053 R)
• M26: 62,939,115 km (0.087 R)
• M27: 65,269,252 km (0.063 R)
• M28: 68,317,159 km (0.039 R)
• M29: 72,144,022 km (0.072 R)
• M30: 79,241,843 km (0.064 R)
• M31: 83,716,315 km (0.169 R)
• M32: 86,015,335 km (0.226 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 15,124 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit