🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.67 AU - 0.85 AU

Year: 241 Days

Day: 22.1 Hours

Environment

Temp: 114 °C

Axial Tilt: 18.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.65 AU - 1.07 AU

Year: 290 Days

Day: 21 Hours

Environment

Temp: 83 °C

Axial Tilt: 27.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,098,922 km

• M1: 296,353 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.6

Radius: 9.9

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.52 AU - 5.6 AU

Year: 4765 Days

Day: 7.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 87.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,098,922 km

• M1: 125,662 km (0.058 R)
• M2: 442,511 km (0.089 R)
• M3: 760,256 km (0.091 R)
• M4: 1,328,429 km (0.117 R)
• M5: 1,643,931 km (0.093 R)
• M6: 2,266,707 km (0.108 R)
• M7: 2,974,754 km (0.117 R)
• M8: 3,434,019 km (0.047 R)
• M9: 4,962,610 km (0.042 R)
• M10: 5,561,002 km (0.041 R)
• M11: 6,872,825 km (0.113 R)
• M12: 8,152,486 km (0.087 R)
• M13: 9,264,297 km (0.065 R)
• M14: 11,257,090 km (0.079 R)
• M15: 12,078,532 km (0.08 R)
• M16: 12,983,450 km (0.117 R)
• M17: 18,364,335 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.5

Radius: 9.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.64 AU - 11.36 AU

Year: 11493 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,098,922 km

• M1: 120,576 km (0.032 R)
• M2: 508,782 km (0.084 R)
• M3: 1,238,521 km (0.112 R)
• M4: 2,115,613 km (0.026 R)
• M5: 3,145,445 km (0.108 R)
• M6: 3,547,863 km (0.071 R)
• M7: 4,846,821 km (0.087 R)
• M8: 13,170,148 km (0.03 R)
• M9: 13,545,190 km (0.11 R)
• M10: 19,274,040 km (0.056 R)
• M11: 21,775,316 km (0.095 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11.5

Radius: 4.7

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 12.29 AU - 14.09 AU

Year: 17410 Days

Day: 17.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,098,922 km

• M1: 59,540 km (0.064 R)
• M2: 309,368 km (0.085 R)
• M3: 560,693 km (0.116 R)
• M4: 798,105 km (0.047 R)
• M5: 3,036,238 km (0.076 R)
• M6: 3,441,649 km (0.111 R)
• M7: 3,940,109 km (0.098 R)
• M8: 4,988,042 km (0.111 R)
• M9: 7,617,224 km (0.047 R)
• M10: 9,891,411 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 688.7

Radius: 5.4

Gravity: 23.62 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 17.27 AU - 19.79 AU

Year: 28990 Days

Day: 23.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 76,098,922 km

• M1: 72,106 km (0.095 R)
• M2: 318,045 km (0.111 R)
• M3: 529,726 km (0.109 R)
• M4: 715,377 km (0.118 R)
• M5: 1,050,327 km (0.045 R)
• M6: 1,349,522 km (0.096 R)
• M7: 2,675,109 km (0.079 R)
• M8: 3,416,217 km (0.032 R)
• M9: 4,358,534 km (0.088 R)
• M10: 4,656,982 km (0.072 R)
• M11: 5,336,455 km (0.112 R)
• M12: 5,505,501 km (0.057 R)
• M13: 8,097,733 km (0.098 R)
• M14: 8,898,231 km (0.064 R)
• M15: 9,378,739 km (0.108 R)
• M16: 10,261,068 km (0.116 R)
• M17: 11,900,062 km (0.104 R)
• M18: 12,557,245 km (0.098 R)
• M19: 14,023,753 km (0.114 R)
• M20: 14,427,967 km (0.034 R)
• M21: 14,674,055 km (0.107 R)
• M22: 18,517,823 km (0.082 R)
• M23: 19,102,451 km (0.05 R)
• M24: 19,800,026 km (0.103 R)
• M25: 20,617,878 km (0.077 R)
• M26: 21,351,805 km (0.082 R)
• M27: 24,695,018 km (0.053 R)
• M28: 25,403,214 km (0.029 R)
• M29: 29,017,499 km (0.104 R)
• M30: 31,425,127 km (0.097 R)
• M31: 50,018,347 km (0.102 R)
• M32: 53,859,123 km (0.09 R)
• M33: 58,930,640 km (0.079 R)
• M34: 65,649,679 km (0.1 R)
• M35: 72,861,643 km (0.036 R)
• M36: 79,302,878 km (0.036 R)
• M37: 87,738,553 km (0.062 R)
• M38: 89,660,287 km (0.106 R)
• M39: 90,214,547 km (0.093 R)
• M40: 91,329,799 km (0.077 R)
• M41: 95,593,638 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.8

Radius: 7.1

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 17.5 AU - 20.96 AU

Year: 30648 Days

Day: 24.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,098,922 km

• M1: 151,543 km (0.111 R)
• M2: 735,423 km (0.113 R)
• M3: 3,579,428 km (0.089 R)
• M4: 3,934,873 km (0.048 R)
• M5: 12,047,865 km (0.093 R)
• M6: 13,296,708 km (0.086 R)
• M7: 13,835,260 km (0.075 R)
• M8: 15,370,284 km (0.086 R)
• M9: 16,926,251 km (0.058 R)
• M10: 21,374,245 km (0.07 R)
• M11: 25,122,718 km (0.094 R)
• M12: 29,158,570 km (0.099 R)
• M13: 30,594,410 km (0.088 R)
• M14: 39,736,486 km (0.115 R)
• M15: 43,314,268 km (0.085 R)
• M16: 44,325,999 km (0.049 R)
• M17: 48,530,746 km (0.073 R)
• M18: 52,042,556 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.2

Radius: 8

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 15.59 AU - 23.87 AU

Year: 31851 Days

Day: 20.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,098,922 km

• M1: 126,709 km (0.083 R)
• M2: 1,359,695 km (0.107 R)
• M3: 2,684,384 km (0.047 R)
• M4: 4,269,673 km (0.101 R)
• M5: 6,016,378 km (0.095 R)
• M6: 11,868,347 km (0.074 R)
• M7: 12,133,285 km (0.065 R)
• M8: 12,538,097 km (0.087 R)
• M9: 26,957,237 km (0.079 R)
• M10: 31,272,388 km (0.117 R)
• M11: 49,117,020 km (0.084 R)
• M12: 52,067,688 km (0.119 R)
• M13: 63,223,351 km (0.042 R)
• M14: 65,878,714 km (0.099 R)

Kuiper Belt

Range: 30.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 14,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit