🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 12.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.95 AU - 1.43 AU

Year: 852 Days

Day: 7.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,129,702 km

• M1: 154,684 km (0.096 R)
• M2: 620,083 km (0.115 R)
• M3: 1,013,825 km (0.076 R)
• M4: 1,589,029 km (0.113 R)
• M5: 2,068,041 km (0.079 R)
• M6: 2,969,817 km (0.096 R)
• M7: 3,649,590 km (0.099 R)
• M8: 4,417,924 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.9

Radius: 13.6

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.02 AU - 1.64 AU

Year: 1006 Days

Day: 5.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,129,702 km

• M1: 169,794 km (0.069 R)
• M2: 904,319 km (0.086 R)
• M3: 1,482,814 km (0.077 R)
• M4: 1,944,324 km (0.103 R)
• M5: 2,757,837 km (0.08 R)
• M6: 3,374,778 km (0.102 R)
• M7: 4,082,825 km (0.039 R)
• M8: 4,718,915 km (0.117 R)
• M9: 5,274,671 km (0.112 R)
• M10: 5,952,050 km (0.025 R)
• M11: 6,623,446 km (0.111 R)
• M12: 7,925,695 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310

Radius: 14.2

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.25 AU - 2.73 AU

Year: 2578 Days

Day: 14 Hours

Environment

Temp: -204 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,129,702 km

• M1: 176,675 km (0.036 R)
• M2: 776,114 km (0.055 R)
• M3: 1,323,193 km (0.076 R)
• M4: 1,836,164 km (0.114 R)
• M5: 2,419,297 km (0.111 R)
• M6: 2,933,016 km (0.085 R)
• M7: 3,389,888 km (0.104 R)
• M8: 3,841,823 km (0.059 R)
• M9: 4,686,153 km (0.05 R)
• M10: 5,337,502 km (0.116 R)
• M11: 6,770,351 km (0.1 R)
• M12: 9,317,703 km (0.066 R)
• M13: 13,045,084 km (0.043 R)
• M14: 13,996,377 km (0.06 R)
• M15: 14,685,125 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.2

Radius: 11.2

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.91 AU - 3.11 AU

Year: 3426 Days

Day: 13.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 92.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,129,702 km

• M1: 142,118 km (0.073 R)
• M2: 495,767 km (0.114 R)
• M3: 1,201,420 km (0.095 R)
• M4: 2,865,846 km (0.095 R)
• M5: 4,725,647 km (0.099 R)
• M6: 5,144,820 km (0.087 R)
• M7: 6,385,585 km (0.103 R)
• M8: 9,449,948 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.9

Radius: 6.9

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.03 AU - 8.95 AU

Year: 13447 Days

Day: 17.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 136.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,129,702 km

• M1: 85,869 km (0.104 R)
• M2: 377,136 km (0.107 R)
• M3: 1,069,026 km (0.045 R)
• M4: 1,475,334 km (0.052 R)
• M5: 1,880,894 km (0.088 R)
• M6: 2,358,560 km (0.06 R)
• M7: 2,657,157 km (0.108 R)
• M8: 2,892,176 km (0.119 R)
• M9: 3,707,783 km (0.038 R)
• M10: 4,084,919 km (0.108 R)
• M11: 5,043,543 km (0.094 R)
• M12: 6,948,372 km (0.096 R)
• M13: 7,649,238 km (0.107 R)
• M14: 11,367,942 km (0.043 R)
• M15: 12,398,223 km (0.045 R)
• M16: 12,815,152 km (0.09 R)
• M17: 13,551,772 km (0.066 R)
• M18: 16,999,404 km (0.045 R)
• M19: 17,292,317 km (0.082 R)
• M20: 17,737,969 km (0.082 R)
• M21: 20,574,046 km (0.057 R)
• M22: 21,668,354 km (0.063 R)
• M23: 23,698,696 km (0.06 R)
• M24: 31,415,702 km (0.103 R)
• M25: 34,358,143 km (0.115 R)
• M26: 36,378,313 km (0.118 R)
• M27: 40,005,014 km (0.109 R)
• M28: 41,972,226 km (0.095 R)
• M29: 46,098,434 km (0.037 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.6

Radius: 6.2

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.42 AU - 8.18 AU

Year: 14291 Days

Day: 24.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 165.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,129,702 km

• M1: 77,193 km (0.099 R)
• M2: 283,189 km (0.094 R)
• M3: 721,660 km (0.108 R)
• M4: 1,490,444 km (0.109 R)
• M5: 2,125,038 km (0.115 R)
• M6: 2,881,405 km (0.082 R)
• M7: 4,692,137 km (0.074 R)
• M8: 5,468,849 km (0.114 R)
• M9: 6,365,689 km (0.118 R)
• M10: 7,955,016 km (0.049 R)
• M11: 9,641,284 km (0.112 R)
• M12: 9,943,920 km (0.105 R)
• M13: 12,477,809 km (0.085 R)
• M14: 12,837,292 km (0.114 R)
• M15: 13,576,755 km (0.105 R)
• M16: 14,805,252 km (0.09 R)
• M17: 15,412,321 km (0.071 R)
• M18: 16,675,974 km (0.079 R)
• M19: 17,333,008 km (0.072 R)
• M20: 20,546,220 km (0.092 R)
• M21: 24,320,575 km (0.116 R)
• M22: 27,512,544 km (0.068 R)
• M23: 29,895,489 km (0.104 R)
• M24: 30,108,965 km (0.07 R)
• M25: 34,361,285 km (0.038 R)
• M26: 41,729,728 km (0.11 R)
• M27: 49,934,572 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.9

Radius: 4.3

Gravity: 47.32 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.35 AU - 11.25 AU

Year: 21685 Days

Day: 19.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 87,129,702 km

• M1: 53,556 km (0.107 R)
• M2: 219,460 km (0.112 R)
• M3: 536,308 km (0.095 R)
• M4: 1,045,390 km (0.061 R)
• M5: 2,698,147 km (0.083 R)
• M6: 3,239,991 km (0.077 R)
• M7: 3,916,323 km (0.083 R)
• M8: 5,338,849 km (0.039 R)
• M9: 5,924,076 km (0.104 R)
• M10: 6,143,087 km (0.082 R)
• M11: 6,551,040 km (0.114 R)
• M12: 7,521,631 km (0.051 R)
• M13: 9,503,953 km (0.066 R)
• M14: 11,201,290 km (0.105 R)
• M15: 14,149,266 km (0.075 R)
• M16: 16,607,458 km (0.077 R)
• M17: 18,956,145 km (0.114 R)
• M18: 19,431,866 km (0.118 R)
• M19: 19,624,398 km (0.084 R)
• M20: 21,108,858 km (0.082 R)
• M21: 21,517,111 km (0.119 R)
• M22: 23,094,620 km (0.076 R)
• M23: 32,149,929 km (0.076 R)
• M24: 33,236,309 km (0.092 R)
• M25: 33,788,624 km (0.116 R)
• M26: 37,976,915 km (0.078 R)
• M27: 38,127,112 km (0.117 R)
• M28: 40,900,656 km (0.108 R)
• M29: 41,694,423 km (0.102 R)
• M30: 44,302,961 km (0.097 R)
• M31: 55,053,363 km (0.026 R)
• M32: 56,215,289 km (0.053 R)
• M33: 57,195,904 km (0.104 R)
• M34: 66,540,684 km (0.084 R)
• M35: 68,080,046 km (0.116 R)
• M36: 71,458,265 km (0.073 R)
• M37: 74,946,439 km (0.101 R)
• M38: 77,817,521 km (0.064 R)
• M39: 78,546,512 km (0.091 R)
• M40: 80,512,826 km (0.062 R)
• M41: 81,009,491 km (0.074 R)
• M42: 85,313,870 km (0.07 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: 546 - 19,154 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit