🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.69 AU - 0.75 AU

Year: 234 Days

Day: 36.4 Hours

Environment

Temp: 101 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.73 AU - 0.93 AU

Year: 290 Days

Day: 18.2 Hours

Environment

Temp: 32 °C

Axial Tilt: 20.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 94,657,134 km

• M1: 127,158 km (0.096 R)
• M2: 474,524 km (0.083 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.53 AU - 1.73 AU

Year: 797 Days

Day: 35.3 Hours

Environment

Temp: -54 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.44 AU - 1.94 AU

Year: 841 Days

Day: 41.2 Hours

Environment

Temp: -76 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.27 AU - 3.73 AU

Year: 2507 Days

Day: 28.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.8

Radius: 10.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.54 AU - 5.6 AU

Year: 4371 Days

Day: 6.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 94,657,134 km

• M1: 131,945 km (0.09 R)
• M2: 494,571 km (0.074 R)
• M3: 947,852 km (0.073 R)
• M4: 2,091,677 km (0.062 R)
• M5: 3,362,063 km (0.111 R)
• M6: 4,472,528 km (0.113 R)
• M7: 4,900,377 km (0.093 R)
• M8: 7,009,857 km (0.067 R)
• M9: 7,495,302 km (0.091 R)
• M10: 8,876,689 km (0.087 R)
• M11: 11,796,540 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.9

Radius: 13.3

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 9.12 AU - 9.58 AU

Year: 10947 Days

Day: 9.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 94,657,134 km

• M1: 165,455 km (0.115 R)
• M2: 588,817 km (0.116 R)
• M3: 1,139,786 km (0.089 R)
• M4: 1,658,891 km (0.108 R)
• M5: 2,172,610 km (0.101 R)
• M6: 2,667,629 km (0.093 R)
• M7: 3,405,147 km (0.091 R)
• M8: 6,417,300 km (0.086 R)
• M9: 7,201,193 km (0.11 R)
• M10: 14,195,791 km (0.107 R)
• M11: 15,322,113 km (0.079 R)
• M12: 18,746,259 km (0.119 R)
• M13: 19,217,342 km (0.09 R)
• M14: 19,696,205 km (0.11 R)
• M15: 22,917,047 km (0.109 R)
• M16: 23,911,275 km (0.054 R)
• M17: 25,028,621 km (0.115 R)
• M18: 25,792,618 km (0.119 R)
• M19: 28,280,580 km (0.114 R)
• M20: 29,005,082 km (0.069 R)
• M21: 30,491,038 km (0.104 R)
• M22: 35,015,775 km (0.081 R)
• M23: 41,675,424 km (0.09 R)
• M24: 47,372,709 km (0.067 R)
• M25: 49,880,119 km (0.087 R)
• M26: 50,331,605 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.5

Radius: 7.2

Gravity: 18.35 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 14.32 AU - 16.84 AU

Year: 23546 Days

Day: 16 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 94,657,134 km

• M1: 91,404 km (0.066 R)
• M2: 327,470 km (0.084 R)
• M3: 892,351 km (0.062 R)
• M4: 1,181,225 km (0.114 R)
• M5: 1,413,251 km (0.066 R)
• M6: 1,657,544 km (0.094 R)
• M7: 2,989,414 km (0.086 R)
• M8: 3,335,883 km (0.118 R)
• M9: 3,613,088 km (0.116 R)
• M10: 8,145,155 km (0.107 R)
• M11: 8,822,385 km (0.073 R)
• M12: 9,475,679 km (0.117 R)
• M13: 10,288,743 km (0.106 R)
• M14: 11,628,990 km (0.09 R)
• M15: 12,633,989 km (0.073 R)
• M16: 13,852,164 km (0.103 R)
• M17: 14,898,003 km (0.12 R)
• M18: 16,519,794 km (0.046 R)
• M19: 18,828,538 km (0.083 R)
• M20: 19,217,043 km (0.026 R)
• M21: 19,909,382 km (0.088 R)
• M22: 26,908,319 km (0.072 R)
• M23: 27,774,640 km (0.111 R)
• M24: 28,025,665 km (0.031 R)
• M25: 28,531,904 km (0.074 R)
• M26: 30,886,425 km (0.054 R)
• M27: 40,465,925 km (0.096 R)
• M28: 41,112,786 km (0.091 R)
• M29: 47,248,243 km (0.104 R)
• M30: 53,966,833 km (0.094 R)
• M31: 57,349,840 km (0.03 R)
• M32: 65,417,503 km (0.093 R)
• M33: 66,756,703 km (0.07 R)
• M34: 72,534,024 km (0.119 R)
• M35: 79,138,321 km (0.055 R)
• M36: 80,403,769 km (0.051 R)
• M37: 82,456,402 km (0.099 R)
• M38: 86,132,171 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 12,565 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit