🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.52 AU - 0.74 AU

Year: 318 Days

Day: 24.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.2

Radius: 9.4

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.74 AU - 1.16 AU

Year: 589 Days

Day: 14 Hours

Environment

Temp: -160 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,944,344 km

• M1: 116,986 km (0.093 R)
• M2: 605,871 km (0.057 R)
• M3: 1,157,738 km (0.052 R)
• M4: 1,933,852 km (0.081 R)
• M5: 2,271,943 km (0.107 R)
• M6: 2,898,459 km (0.098 R)
• M7: 3,210,819 km (0.118 R)
• M8: 3,636,126 km (0.102 R)
• M9: 4,028,222 km (0.056 R)
• M10: 4,615,543 km (0.027 R)
• M11: 5,043,393 km (0.112 R)
• M12: 5,905,974 km (0.029 R)
• M13: 6,546,403 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.8

Radius: 12

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.21 AU - 3.33 AU

Year: 2931 Days

Day: 11.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,944,344 km

• M1: 149,598 km (0.088 R)
• M2: 568,023 km (0.103 R)
• M3: 1,966,165 km (0.12 R)
• M4: 2,891,428 km (0.094 R)
• M5: 3,904,056 km (0.117 R)
• M6: 4,878,387 km (0.035 R)
• M7: 5,742,913 km (0.094 R)
• M8: 6,364,941 km (0.104 R)
• M9: 9,643,378 km (0.087 R)
• M10: 12,487,233 km (0.113 R)
• M11: 15,796,937 km (0.042 R)
• M12: 18,475,636 km (0.114 R)
• M13: 19,831,891 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.3

Radius: 11.9

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.65 AU - 3.13 AU

Year: 3124 Days

Day: 11.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 22,944,344 km

• M1: 150,196 km (0.08 R)
• M2: 597,643 km (0.095 R)
• M3: 1,068,278 km (0.097 R)
• M4: 1,496,128 km (0.077 R)
• M5: 2,146,729 km (0.054 R)
• M6: 2,663,889 km (0.071 R)
• M7: 3,586,011 km (0.107 R)
• M8: 4,078,487 km (0.113 R)
• M9: 4,615,693 km (0.096 R)
• M10: 7,001,779 km (0.072 R)
• M11: 7,510,711 km (0.092 R)
• M12: 8,390,795 km (0.068 R)
• M13: 8,819,393 km (0.093 R)
• M14: 10,933,061 km (0.099 R)
• M15: 11,358,817 km (0.116 R)
• M16: 14,150,014 km (0.117 R)
• M17: 14,707,266 km (0.099 R)
• M18: 16,634,386 km (0.101 R)
• M19: 17,774,920 km (0.081 R)
• M20: 19,520,278 km (0.101 R)
• M21: 21,377,237 km (0.1 R)
• M22: 22,931,708 km (0.119 R)

Asteroid Belt

Center: 3.74 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.5

Radius: 9.7

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.57 AU - 5.61 AU

Year: 6252 Days

Day: 11.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,944,344 km

• M1: 120,875 km (0.088 R)
• M2: 508,633 km (0.079 R)
• M3: 1,178,831 km (0.1 R)
• M4: 1,961,228 km (0.062 R)
• M5: 3,098,322 km (0.105 R)
• M6: 4,053,953 km (0.113 R)
• M7: 8,098,331 km (0.117 R)
• M8: 8,669,945 km (0.115 R)
• M9: 11,179,449 km (0.119 R)
• M10: 11,682,696 km (0.078 R)
• M11: 13,062,437 km (0.034 R)
• M12: 13,564,488 km (0.118 R)
• M13: 16,655,928 km (0.088 R)
• M14: 22,563,398 km (0.101 R)
• M15: 24,358,124 km (0.066 R)
• M16: 25,721,708 km (0.06 R)
• M17: 27,406,180 km (0.1 R)
• M18: 28,507,221 km (0.095 R)
• M19: 33,207,735 km (0.098 R)
• M20: 33,725,194 km (0.065 R)
• M21: 36,066,401 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.5

Radius: 11

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.91 AU - 5.51 AU

Year: 6499 Days

Day: 6.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,944,344 km

• M1: 137,032 km (0.099 R)
• M2: 618,288 km (0.054 R)
• M3: 983,756 km (0.092 R)
• M4: 1,630,916 km (0.117 R)
• M5: 2,884,397 km (0.066 R)
• M6: 5,087,973 km (0.045 R)
• M7: 6,008,748 km (0.093 R)
• M8: 7,396,268 km (0.078 R)
• M9: 8,663,362 km (0.087 R)
• M10: 9,657,889 km (0.065 R)
• M11: 11,134,570 km (0.077 R)
• M12: 11,837,081 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.2

Radius: 14.3

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 4.53 AU - 5.21 AU

Year: 6833 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 22,944,344 km

• M1: 184,305 km (0.095 R)
• M2: 631,303 km (0.105 R)
• M3: 1,330,673 km (0.114 R)
• M4: 1,821,055 km (0.118 R)
• M5: 2,506,064 km (0.117 R)
• M6: 3,139,611 km (0.101 R)
• M7: 3,780,488 km (0.108 R)
• M8: 4,675,382 km (0.1 R)
• M9: 5,357,848 km (0.073 R)
• M10: 7,072,389 km (0.079 R)
• M11: 8,179,862 km (0.104 R)
• M12: 10,638,653 km (0.064 R)
• M13: 11,401,303 km (0.031 R)
• M14: 13,380,931 km (0.099 R)
• M15: 14,209,703 km (0.082 R)
• M16: 16,100,620 km (0.105 R)
• M17: 17,243,997 km (0.069 R)
• M18: 20,454,367 km (0.069 R)
• M19: 21,394,889 km (0.037 R)
• M20: 22,942,778 km (0.104 R)
• M21: 25,180,463 km (0.117 R)
• M22: 29,588,813 km (0.067 R)
• M23: 30,589,174 km (0.111 R)
• M24: 36,726,427 km (0.095 R)
• M25: 37,185,692 km (0.055 R)
• M26: 38,350,611 km (0.114 R)
• M27: 39,901,193 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.1

Radius: 7.1

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.55 AU - 7.03 AU

Year: 11250 Days

Day: 24.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 58.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,944,344 km

• M1: 95,892 km (0.116 R)
• M2: 454,478 km (0.066 R)
• M3: 1,243,607 km (0.098 R)
• M4: 3,337,977 km (0.108 R)
• M5: 12,983,749 km (0.073 R)
• M6: 14,860,304 km (0.084 R)
• M7: 16,962,903 km (0.113 R)
• M8: 17,651,950 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 915

Radius: 3.3

Gravity: 84.02 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 8.01 AU - 8.43 AU

Year: 14984 Days

Day: 18.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 22,944,344 km

• M1: 59,091 km (0.108 R)
• M2: 256,112 km (0.117 R)
• M3: 492,775 km (0.114 R)
• M4: 699,220 km (0.059 R)
• M5: 807,081 km (0.049 R)
• M6: 972,386 km (0.092 R)
• M7: 1,850,974 km (0.104 R)
• M8: 1,962,874 km (0.047 R)
• M9: 2,241,724 km (0.065 R)
• M10: 2,478,837 km (0.072 R)
• M11: 2,756,341 km (0.075 R)
• M12: 3,922,307 km (0.075 R)
• M13: 4,202,354 km (0.089 R)
• M14: 5,195,983 km (0.064 R)
• M15: 5,306,984 km (0.12 R)
• M16: 5,885,928 km (0.062 R)
• M17: 6,170,015 km (0.046 R)
• M18: 6,378,404 km (0.104 R)
• M19: 7,444,888 km (0.11 R)
• M20: 8,069,608 km (0.118 R)
• M21: 10,798,872 km (0.106 R)
• M22: 11,285,963 km (0.089 R)
• M23: 14,374,261 km (0.076 R)
• M24: 14,963,228 km (0.107 R)
• M25: 16,347,008 km (0.084 R)
• M26: 16,988,484 km (0.068 R)
• M27: 18,665,177 km (0.079 R)
• M28: 21,859,390 km (0.087 R)
• M29: 27,026,651 km (0.072 R)
• M30: 27,584,202 km (0.112 R)
• M31: 28,149,383 km (0.083 R)
• M32: 29,419,768 km (0.065 R)
• M33: 29,654,786 km (0.111 R)
• M34: 32,825,214 km (0.114 R)
• M35: 35,945,526 km (0.044 R)
• M36: 37,577,190 km (0.052 R)
• M37: 42,617,441 km (0.094 R)
• M38: 47,441,823 km (0.104 R)
• M39: 55,788,936 km (0.057 R)
• M40: 60,591,177 km (0.075 R)
• M41: 65,261,921 km (0.03 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.5

Radius: 6.8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.11 AU - 9.13 AU

Year: 17512 Days

Day: 22.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,944,344 km

• M1: 148,700 km (0.075 R)
• M2: 529,576 km (0.111 R)
• M3: 1,493,436 km (0.043 R)
• M4: 1,790,387 km (0.099 R)
• M5: 11,527,414 km (0.113 R)
• M6: 17,654,045 km (0.026 R)
• M7: 22,400,037 km (0.038 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 16,908 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit