🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.41 AU - 0.61 AU

Year: 232 Days

Day: 40.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 162 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,311,478 km

• M1: 173,085 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.7

Radius: 9.3

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.82 AU - 0.84 AU

Year: 481 Days

Day: 8.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,311,478 km

• M1: 137,331 km (0.045 R)
• M2: 1,212,341 km (0.099 R)
• M3: 1,548,936 km (0.09 R)
• M4: 2,011,792 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.1

Radius: 11.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.95 AU - 0.99 AU

Year: 607 Days

Day: 7.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,311,478 km

• M1: 147,952 km (0.088 R)
• M2: 536,159 km (0.103 R)
• M3: 1,025,643 km (0.078 R)
• M4: 1,424,321 km (0.094 R)
• M5: 2,728,216 km (0.108 R)
• M6: 3,253,454 km (0.092 R)
• M7: 3,831,949 km (0.063 R)
• M8: 4,343,275 km (0.107 R)
• M9: 5,609,023 km (0.114 R)
• M10: 6,137,851 km (0.067 R)
• M11: 6,941,940 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.7

Radius: 14.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.08 AU - 1.36 AU

Year: 857 Days

Day: 11.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,311,478 km

• M1: 179,069 km (0.072 R)
• M2: 657,034 km (0.068 R)
• M3: 1,105,079 km (0.081 R)
• M4: 1,942,678 km (0.061 R)
• M5: 2,443,382 km (0.078 R)
• M6: 3,096,078 km (0.107 R)
• M7: 4,243,792 km (0.057 R)
• M8: 4,916,235 km (0.109 R)
• M9: 5,461,519 km (0.027 R)
• M10: 6,194,848 km (0.107 R)
• M11: 6,923,988 km (0.066 R)
• M12: 8,060,632 km (0.1 R)
• M13: 8,876,240 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.6

Radius: 8.3

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.92 AU - 5.08 AU

Year: 6069 Days

Day: 13.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,311,478 km

• M1: 103,821 km (0.081 R)
• M2: 790,326 km (0.119 R)
• M3: 1,086,380 km (0.083 R)
• M4: 1,686,716 km (0.107 R)
• M5: 2,156,154 km (0.111 R)
• M6: 3,248,667 km (0.107 R)
• M7: 3,555,044 km (0.112 R)
• M8: 3,904,654 km (0.066 R)
• M9: 4,251,571 km (0.082 R)
• M10: 4,591,907 km (0.083 R)
• M11: 5,007,340 km (0.112 R)
• M12: 6,041,959 km (0.05 R)
• M13: 6,748,510 km (0.089 R)
• M14: 13,096,097 km (0.091 R)
• M15: 13,649,609 km (0.045 R)
• M16: 14,161,234 km (0.117 R)
• M17: 16,526,526 km (0.114 R)
• M18: 20,959,110 km (0.077 R)
• M19: 23,689,720 km (0.08 R)
• M20: 26,038,407 km (0.116 R)
• M21: 30,901,086 km (0.119 R)
• M22: 31,585,496 km (0.107 R)
• M23: 33,802,237 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 418.4

Radius: 5.3

Gravity: 14.89 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 6.81 AU - 9.03 AU

Year: 14172 Days

Day: 23.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 51,311,478 km

• M1: 66,421 km (0.085 R)
• M2: 238,908 km (0.1 R)
• M3: 417,378 km (0.055 R)
• M4: 626,665 km (0.078 R)
• M5: 915,689 km (0.109 R)
• M6: 1,166,863 km (0.072 R)
• M7: 1,563,148 km (0.092 R)
• M8: 2,281,966 km (0.082 R)
• M9: 2,990,312 km (0.114 R)
• M10: 3,248,219 km (0.116 R)
• M11: 3,470,222 km (0.066 R)
• M12: 3,862,617 km (0.116 R)
• M13: 7,271,504 km (0.115 R)
• M14: 7,609,146 km (0.098 R)
• M15: 8,779,301 km (0.108 R)
• M16: 9,017,311 km (0.107 R)
• M17: 10,116,406 km (0.065 R)
• M18: 10,698,043 km (0.115 R)
• M19: 11,754,952 km (0.115 R)
• M20: 13,436,731 km (0.068 R)
• M21: 15,204,230 km (0.091 R)
• M22: 15,409,777 km (0.091 R)
• M23: 16,393,383 km (0.091 R)
• M24: 17,492,928 km (0.057 R)
• M25: 18,797,421 km (0.091 R)
• M26: 20,248,072 km (0.118 R)
• M27: 28,217,898 km (0.119 R)
• M28: 29,156,176 km (0.116 R)
• M29: 32,547,410 km (0.077 R)
• M30: 33,579,037 km (0.112 R)
• M31: 37,051,653 km (0.046 R)
• M32: 38,302,440 km (0.108 R)
• M33: 39,840,307 km (0.052 R)
• M34: 44,002,568 km (0.076 R)
• M35: 46,547,677 km (0.09 R)
• M36: 47,126,321 km (0.117 R)
• M37: 49,488,621 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 13,414 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit