🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.2

Radius: 12.3

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.84 AU - 0.92 AU

Year: 533 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,107,329 km

• M1: 153,039 km (0.104 R)
• M2: 541,694 km (0.097 R)
• M3: 925,562 km (0.108 R)
• M4: 1,567,486 km (0.103 R)
• M5: 2,012,989 km (0.095 R)
• M6: 2,595,224 km (0.055 R)
• M7: 2,978,494 km (0.09 R)
• M8: 3,488,772 km (0.115 R)
• M9: 4,394,138 km (0.098 R)
• M10: 4,862,230 km (0.084 R)
• M11: 5,520,311 km (0.11 R)
• M12: 6,010,244 km (0.052 R)
• M13: 7,056,681 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.2

Radius: 12.8

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.07 AU - 1.13 AU

Year: 745 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,107,329 km

• M1: 159,322 km (0.109 R)
• M2: 562,787 km (0.111 R)
• M3: 989,740 km (0.116 R)
• M4: 1,953,599 km (0.057 R)
• M5: 2,534,338 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.4

Radius: 9.8

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.59 AU - 3.51 AU

Year: 3439 Days

Day: 13.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,107,329 km

• M1: 122,072 km (0.093 R)
• M2: 430,243 km (0.062 R)
• M3: 780,003 km (0.112 R)
• M4: 1,335,460 km (0.036 R)
• M5: 2,100,952 km (0.05 R)
• M6: 2,516,984 km (0.083 R)
• M7: 3,118,517 km (0.078 R)
• M8: 5,459,275 km (0.052 R)
• M9: 6,412,662 km (0.117 R)
• M10: 6,772,894 km (0.08 R)
• M11: 7,264,323 km (0.109 R)
• M12: 7,717,455 km (0.053 R)
• M13: 9,330,718 km (0.098 R)
• M14: 10,423,082 km (0.074 R)
• M15: 10,844,200 km (0.11 R)
• M16: 11,477,149 km (0.09 R)
• M17: 13,614,453 km (0.062 R)
• M18: 15,456,302 km (0.093 R)
• M19: 16,309,010 km (0.112 R)
• M20: 16,824,973 km (0.075 R)
• M21: 18,438,686 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.1

Radius: 14.6

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.21 AU - 3.59 AU

Year: 4048 Days

Day: 8.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,107,329 km

• M1: 184,305 km (0.097 R)
• M2: 724,652 km (0.107 R)
• M3: 1,348,475 km (0.097 R)
• M4: 2,041,413 km (0.071 R)
• M5: 2,774,143 km (0.115 R)
• M6: 3,375,826 km (0.108 R)
• M7: 4,086,415 km (0.106 R)
• M8: 5,022,898 km (0.077 R)
• M9: 5,528,838 km (0.096 R)
• M10: 6,157,299 km (0.079 R)
• M11: 6,993,700 km (0.116 R)
• M12: 7,490,216 km (0.08 R)
• M13: 8,081,576 km (0.104 R)
• M14: 8,779,450 km (0.107 R)
• M15: 11,749,118 km (0.092 R)
• M16: 12,215,564 km (0.06 R)
• M17: 14,416,747 km (0.104 R)
• M18: 16,118,871 km (0.084 R)
• M19: 16,812,407 km (0.116 R)
• M20: 21,469,987 km (0.079 R)
• M21: 24,582,521 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.7

Radius: 13

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.62 AU - 4.44 AU

Year: 5224 Days

Day: 10.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,107,329 km

• M1: 162,014 km (0.092 R)
• M2: 830,119 km (0.079 R)
• M3: 1,696,141 km (0.099 R)
• M4: 2,198,939 km (0.118 R)
• M5: 3,318,978 km (0.082 R)
• M6: 4,485,543 km (0.118 R)
• M7: 4,990,735 km (0.045 R)
• M8: 5,607,527 km (0.115 R)
• M9: 7,314,887 km (0.041 R)
• M10: 9,276,714 km (0.08 R)
• M11: 11,208,172 km (0.094 R)
• M12: 13,085,027 km (0.079 R)
• M13: 16,873,144 km (0.081 R)
• M14: 18,265,152 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.2

Radius: 5.6

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.79 AU - 6.33 AU

Year: 9632 Days

Day: 16.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,107,329 km

• M1: 70,161 km (0.042 R)
• M2: 361,129 km (0.089 R)
• M3: 570,865 km (0.104 R)
• M4: 879,635 km (0.04 R)
• M5: 1,904,680 km (0.093 R)
• M6: 2,980,438 km (0.066 R)
• M7: 4,956,177 km (0.08 R)
• M8: 5,394,050 km (0.053 R)
• M9: 5,985,112 km (0.104 R)
• M10: 6,413,710 km (0.103 R)
• M11: 7,295,290 km (0.047 R)
• M12: 7,707,731 km (0.092 R)
• M13: 9,038,703 km (0.112 R)
• M14: 11,336,377 km (0.12 R)
• M15: 16,402,958 km (0.118 R)
• M16: 26,367,373 km (0.054 R)
• M17: 35,325,443 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 883.9

Radius: 7.2

Gravity: 17.05 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.47 AU - 10.37 AU

Year: 17201 Days

Day: 23.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,107,329 km

• M1: 89,609 km (0.059 R)
• M2: 390,301 km (0.099 R)
• M3: 652,995 km (0.062 R)
• M4: 908,209 km (0.098 R)
• M5: 1,163,273 km (0.077 R)
• M6: 2,340,309 km (0.064 R)
• M7: 3,030,554 km (0.106 R)
• M8: 4,035,552 km (0.119 R)
• M9: 4,631,400 km (0.057 R)
• M10: 5,752,936 km (0.098 R)
• M11: 7,420,503 km (0.063 R)
• M12: 9,001,154 km (0.115 R)
• M13: 10,015,428 km (0.098 R)
• M14: 10,855,569 km (0.095 R)
• M15: 12,069,556 km (0.108 R)
• M16: 15,224,276 km (0.104 R)
• M17: 16,907,402 km (0.111 R)
• M18: 17,665,414 km (0.097 R)
• M19: 18,533,830 km (0.107 R)
• M20: 19,613,328 km (0.045 R)
• M21: 23,307,647 km (0.077 R)
• M22: 26,984,314 km (0.076 R)
• M23: 27,902,396 km (0.032 R)
• M24: 28,960,053 km (0.072 R)
• M25: 44,916,910 km (0.077 R)
• M26: 46,531,071 km (0.064 R)
• M27: 50,046,322 km (0.108 R)
• M28: 51,256,270 km (0.099 R)
• M29: 52,840,511 km (0.115 R)
• M30: 53,914,474 km (0.08 R)
• M31: 56,291,584 km (0.039 R)
• M32: 59,311,816 km (0.097 R)
• M33: 61,253,447 km (0.1 R)
• M34: 62,637,376 km (0.102 R)
• M35: 63,638,785 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.9

Radius: 7.7

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.76 AU - 12.68 AU

Year: 22662 Days

Day: 21.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 54.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,107,329 km

• M1: 116,088 km (0.115 R)
• M2: 687,851 km (0.094 R)
• M3: 1,457,532 km (0.085 R)
• M4: 2,660,000 km (0.072 R)
• M5: 3,351,291 km (0.091 R)
• M6: 4,976,074 km (0.049 R)
• M7: 6,230,003 km (0.12 R)
• M8: 7,537,190 km (0.106 R)
• M9: 7,829,055 km (0.104 R)
• M10: 12,544,230 km (0.065 R)
• M11: 12,885,613 km (0.094 R)
• M12: 15,764,624 km (0.089 R)
• M13: 28,769,316 km (0.102 R)
• M14: 34,413,793 km (0.111 R)
• M15: 37,424,151 km (0.115 R)
• M16: 38,993,134 km (0.112 R)
• M17: 50,189,487 km (0.098 R)
• M18: 58,672,434 km (0.103 R)
• M19: 63,551,419 km (0.118 R)
• M20: 64,558,662 km (0.095 R)
• M21: 70,611,242 km (0.077 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 13,836 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit