🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.44 AU - 0.68 AU

Year: 152 Days

Day: 47.8 Hours

Environment

Temp: 170 °C

Axial Tilt: 22.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,157,848 km

• M1: 53,107 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.73 AU - 0.83 AU

Year: 249 Days

Day: 19.1 Hours

Environment

Temp: 105 °C

Axial Tilt: 24.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.37 AU - 1.95 AU

Year: 773 Days

Day: 35.9 Hours

Environment

Temp: -50 °C

Axial Tilt: 17 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,157,848 km

• M1: 94,247 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.4 AU - 2.02 AU

Year: 809 Days

Day: 27.1 Hours

Environment

Temp: -44 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,157,848 km

• M1: 439,519 km (0.116 R)

Asteroid Belt

Center: 5.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.1

Radius: 9.9

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7.39 AU - 10.85 AU

Year: 9961 Days

Day: 7.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 100,157,848 km

• M1: 125,961 km (0.092 R)
• M2: 529,277 km (0.117 R)
• M3: 867,518 km (0.118 R)
• M4: 1,271,881 km (0.093 R)
• M5: 1,698,983 km (0.055 R)
• M6: 2,548,400 km (0.072 R)
• M7: 3,371,936 km (0.117 R)
• M8: 3,707,783 km (0.114 R)
• M9: 4,363,620 km (0.072 R)
• M10: 4,882,276 km (0.115 R)
• M11: 5,871,866 km (0.114 R)
• M12: 6,324,549 km (0.116 R)
• M13: 6,725,621 km (0.105 R)
• M14: 8,329,759 km (0.075 R)
• M15: 11,298,080 km (0.078 R)
• M16: 11,889,889 km (0.104 R)
• M17: 12,333,148 km (0.063 R)
• M18: 12,844,922 km (0.088 R)
• M19: 14,465,964 km (0.073 R)
• M20: 15,099,511 km (0.057 R)
• M21: 16,833,650 km (0.099 R)
• M22: 19,448,621 km (0.085 R)
• M23: 20,852,597 km (0.076 R)
• M24: 21,579,493 km (0.035 R)
• M25: 22,828,186 km (0.088 R)
• M26: 26,113,655 km (0.064 R)
• M27: 28,602,514 km (0.091 R)
• M28: 34,157,981 km (0.09 R)
• M29: 35,054,521 km (0.109 R)
• M30: 35,508,700 km (0.049 R)
• M31: 39,284,251 km (0.107 R)
• M32: 42,157,727 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.2

Radius: 11.8

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.81 AU - 11.65 AU

Year: 12711 Days

Day: 10 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 100,157,848 km

• M1: 146,905 km (0.063 R)
• M2: 611,107 km (0.118 R)
• M3: 1,611,169 km (0.106 R)
• M4: 2,271,494 km (0.093 R)
• M5: 9,243,952 km (0.106 R)
• M6: 11,767,967 km (0.085 R)
• M7: 13,393,049 km (0.089 R)
• M8: 17,758,913 km (0.041 R)
• M9: 18,260,963 km (0.062 R)
• M10: 20,914,381 km (0.075 R)
• M11: 27,470,657 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.3

Radius: 12.4

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 9.19 AU - 14.97 AU

Year: 15184 Days

Day: 9.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 100,157,848 km

• M1: 190,139 km (0.103 R)
• M2: 2,975,502 km (0.097 R)
• M3: 3,809,809 km (0.041 R)
• M4: 4,224,793 km (0.092 R)
• M5: 5,551,427 km (0.082 R)
• M6: 6,161,188 km (0.051 R)
• M7: 6,975,749 km (0.117 R)
• M8: 7,388,340 km (0.082 R)
• M9: 7,904,751 km (0.069 R)
• M10: 10,269,146 km (0.097 R)
• M11: 25,918,130 km (0.081 R)
• M12: 36,528,060 km (0.11 R)
• M13: 38,283,741 km (0.053 R)
• M14: 42,918,133 km (0.099 R)
• M15: 50,168,394 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 742.1

Radius: 3.6

Gravity: 57.26 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 15.99 AU - 17.47 AU

Year: 24748 Days

Day: 24.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 100,157,848 km

• M1: 48,619 km (0.114 R)
• M2: 367,263 km (0.1 R)
• M3: 633,397 km (0.067 R)
• M4: 1,836,463 km (0.099 R)
• M5: 2,355,867 km (0.039 R)
• M6: 3,339,174 km (0.119 R)
• M7: 3,741,592 km (0.11 R)
• M8: 4,210,133 km (0.057 R)
• M9: 5,182,220 km (0.1 R)
• M10: 7,252,505 km (0.091 R)
• M11: 8,085,316 km (0.051 R)
• M12: 11,230,611 km (0.106 R)
• M13: 12,413,183 km (0.105 R)
• M14: 15,601,861 km (0.048 R)
• M15: 16,281,933 km (0.081 R)
• M16: 17,609,764 km (0.094 R)
• M17: 20,985,440 km (0.11 R)
• M18: 22,448,357 km (0.052 R)
• M19: 28,102,558 km (0.09 R)
• M20: 29,107,557 km (0.1 R)
• M21: 30,659,485 km (0.045 R)
• M22: 35,354,764 km (0.114 R)
• M23: 36,525,218 km (0.077 R)
• M24: 39,719,880 km (0.094 R)
• M25: 40,824,810 km (0.103 R)
• M26: 45,449,778 km (0.079 R)
• M27: 55,918,936 km (0.084 R)
• M28: 61,813,691 km (0.066 R)
• M29: 77,963,678 km (0.085 R)
• M30: 78,455,257 km (0.091 R)
• M31: 79,196,514 km (0.082 R)
• M32: 80,944,266 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.9

Radius: 7.8

Gravity: 14.86 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 14.06 AU - 20.78 AU

Year: 26294 Days

Day: 23.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,157,848 km

• M1: 97,388 km (0.116 R)
• M2: 606,171 km (0.046 R)
• M3: 971,788 km (0.069 R)
• M4: 1,221,616 km (0.101 R)
• M5: 4,765,440 km (0.067 R)
• M6: 5,458,527 km (0.062 R)
• M7: 6,032,534 km (0.104 R)
• M8: 7,404,945 km (0.078 R)
• M9: 7,724,187 km (0.105 R)
• M10: 8,914,537 km (0.106 R)
• M11: 9,836,509 km (0.116 R)
• M12: 12,013,756 km (0.115 R)
• M13: 12,380,869 km (0.053 R)
• M14: 18,144,127 km (0.039 R)
• M15: 25,116,884 km (0.118 R)
• M16: 36,979,546 km (0.096 R)
• M17: 41,973,423 km (0.069 R)
• M18: 49,430,876 km (0.1 R)
• M19: 61,546,808 km (0.101 R)
• M20: 78,522,426 km (0.066 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 13,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit