🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.41 AU - 0.61 AU

Year: 128 Days

Day: 39.5 Hours

Environment

Temp: 263 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,145,417 km

• M1: 18,849 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.07 AU - 1.53 AU

Year: 521 Days

Day: 47.7 Hours

Environment

Temp: 26 °C

Axial Tilt: 37.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.97 AU - 3.47 AU

Year: 2031 Days

Day: 32.1 Hours

Environment

Temp: -90 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 40,145,417 km

• M1: 30,817 km (0.111 R)
• M2: 124,017 km (0.035 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.3

Radius: 10

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.5 AU - 7.08 AU

Year: 5544 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,145,417 km

• M1: 124,316 km (0.102 R)
• M2: 451,935 km (0.108 R)
• M3: 815,458 km (0.049 R)
• M4: 1,136,495 km (0.072 R)
• M5: 1,770,940 km (0.088 R)
• M6: 2,626,939 km (0.111 R)
• M7: 3,570,901 km (0.102 R)
• M8: 4,701,861 km (0.1 R)
• M9: 5,083,784 km (0.107 R)
• M10: 5,514,028 km (0.116 R)
• M11: 9,006,839 km (0.053 R)
• M12: 9,398,037 km (0.11 R)
• M13: 13,197,075 km (0.079 R)
• M14: 15,296,233 km (0.115 R)
• M15: 15,967,179 km (0.071 R)
• M16: 16,715,916 km (0.096 R)
• M17: 19,039,321 km (0.1 R)
• M18: 20,211,720 km (0.067 R)
• M19: 20,815,646 km (0.049 R)
• M20: 22,556,367 km (0.068 R)
• M21: 23,720,238 km (0.092 R)
• M22: 24,543,176 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.6

Radius: 8.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.88 AU - 6.98 AU

Year: 5731 Days

Day: 6.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,145,417 km

• M1: 106,214 km (0.079 R)
• M2: 419,622 km (0.067 R)
• M3: 1,036,713 km (0.109 R)
• M4: 1,507,498 km (0.103 R)
• M5: 1,886,280 km (0.12 R)
• M6: 2,351,080 km (0.087 R)
• M7: 2,836,974 km (0.066 R)
• M8: 4,933,289 km (0.076 R)
• M9: 5,992,592 km (0.03 R)
• M10: 7,047,107 km (0.112 R)
• M11: 9,580,098 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.7

Radius: 6.7

Gravity: 20.71 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 10.87 AU - 17.05 AU

Year: 18332 Days

Day: 23.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 40,145,417 km

• M1: 102,175 km (0.086 R)
• M2: 501,602 km (0.095 R)
• M3: 1,140,385 km (0.078 R)
• M4: 1,845,290 km (0.118 R)
• M5: 2,636,962 km (0.068 R)
• M6: 2,859,862 km (0.075 R)
• M7: 3,372,534 km (0.053 R)
• M8: 4,204,299 km (0.1 R)
• M9: 4,977,271 km (0.105 R)
• M10: 5,841,348 km (0.103 R)
• M11: 6,222,224 km (0.076 R)
• M12: 7,367,695 km (0.087 R)
• M13: 7,712,219 km (0.092 R)
• M14: 9,773,079 km (0.098 R)
• M15: 10,371,022 km (0.043 R)
• M16: 12,726,740 km (0.081 R)
• M17: 13,151,298 km (0.07 R)
• M18: 16,979,508 km (0.029 R)
• M19: 18,107,476 km (0.08 R)
• M20: 20,033,848 km (0.07 R)
• M21: 22,295,917 km (0.083 R)
• M22: 31,485,116 km (0.113 R)
• M23: 31,742,574 km (0.065 R)
• M24: 35,773,788 km (0.071 R)
• M25: 37,046,716 km (0.045 R)
• M26: 37,621,920 km (0.093 R)
• M27: 41,507,575 km (0.05 R)
• M28: 47,317,358 km (0.096 R)
• M29: 48,678,100 km (0.085 R)
• M30: 49,022,325 km (0.078 R)
• M31: 49,715,711 km (0.106 R)
• M32: 54,939,220 km (0.108 R)
• M33: 64,162,228 km (0.053 R)
• M34: 65,200,287 km (0.118 R)
• M35: 75,280,341 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.2

Radius: 6.9

Gravity: 13.34 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 12.56 AU - 15.56 AU

Year: 18529 Days

Day: 19.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,145,417 km

• M1: 87,216 km (0.115 R)
• M2: 390,750 km (0.086 R)
• M3: 856,298 km (0.098 R)
• M4: 2,977,895 km (0.119 R)
• M5: 3,980,949 km (0.036 R)
• M6: 4,661,170 km (0.071 R)
• M7: 5,083,336 km (0.112 R)
• M8: 5,416,341 km (0.036 R)
• M9: 7,491,712 km (0.108 R)
• M10: 10,103,391 km (0.11 R)
• M11: 12,788,524 km (0.099 R)
• M12: 13,969,898 km (0.098 R)
• M13: 22,921,685 km (0.101 R)
• M14: 34,546,786 km (0.082 R)
• M15: 34,809,779 km (0.096 R)
• M16: 41,235,606 km (0.093 R)
• M17: 48,573,381 km (0.098 R)
• M18: 51,599,597 km (0.12 R)
• M19: 56,189,110 km (0.109 R)
• M20: 61,428,027 km (0.03 R)
• M21: 64,563,000 km (0.113 R)
• M22: 69,254,240 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55.4

Radius: 7.9

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 16.44 AU - 19.66 AU

Year: 26952 Days

Day: 17 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,145,417 km

• M1: 98,286 km (0.119 R)
• M2: 651,798 km (0.08 R)
• M3: 958,623 km (0.056 R)
• M4: 1,302,848 km (0.059 R)
• M5: 1,658,442 km (0.096 R)
• M6: 2,227,064 km (0.111 R)
• M7: 4,021,789 km (0.117 R)
• M8: 5,926,320 km (0.107 R)
• M9: 7,831,449 km (0.044 R)
• M10: 11,146,986 km (0.108 R)
• M11: 23,079,511 km (0.081 R)
• M12: 28,045,711 km (0.049 R)
• M13: 29,781,944 km (0.094 R)
• M14: 34,869,169 km (0.051 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 13,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit