🌌 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: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.48 AU - 0.56 AU

Year: 140 Days

Day: 17.6 Hours

Environment

Temp: 196 °C

Axial Tilt: 7.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 51,837,902 km

• M1: 144,512 km (0.093 R)
• M2: 181,612 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1 AU - 1.5 AU

Year: 521 Days

Day: 20.5 Hours

Environment

Temp: -4 °C

Axial Tilt: 0.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 51,837,902 km

• M1: 194,926 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.82 AU - 4.9 AU

Year: 3394 Days

Day: 41.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,837,902 km

• M1: 2,518,929 km (0.08 R)

Asteroid Belt

Center: 5.06 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.5

Radius: 10.9

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.8 AU - 6.72 AU

Year: 5153 Days

Day: 8.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,837,902 km

• M1: 135,536 km (0.069 R)
• M2: 607,816 km (0.102 R)
• M3: 1,096,702 km (0.087 R)
• M4: 1,896,452 km (0.118 R)
• M5: 2,295,729 km (0.101 R)
• M6: 2,934,811 km (0.113 R)
• M7: 3,431,326 km (0.08 R)
• M8: 4,619,283 km (0.109 R)
• M9: 5,293,371 km (0.033 R)
• M10: 6,378,105 km (0.088 R)
• M11: 6,973,355 km (0.081 R)
• M12: 7,426,038 km (0.114 R)
• M13: 7,898,169 km (0.026 R)
• M14: 10,702,680 km (0.112 R)
• M15: 11,591,890 km (0.099 R)
• M16: 13,517,364 km (0.092 R)
• M17: 14,002,959 km (0.115 R)
• M18: 14,388,622 km (0.114 R)
• M19: 16,122,611 km (0.119 R)
• M20: 18,251,539 km (0.113 R)
• M21: 21,132,345 km (0.086 R)
• M22: 24,145,545 km (0.071 R)
• M23: 27,434,006 km (0.077 R)
• M24: 31,009,843 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.1

Radius: 11

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.42 AU - 6.76 AU

Year: 6306 Days

Day: 13.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,837,902 km

• M1: 136,732 km (0.096 R)
• M2: 574,157 km (0.075 R)
• M3: 923,767 km (0.106 R)
• M4: 1,368,671 km (0.116 R)
• M5: 2,201,632 km (0.026 R)
• M6: 3,224,582 km (0.03 R)
• M7: 4,128,452 km (0.117 R)
• M8: 5,248,492 km (0.117 R)
• M9: 6,060,359 km (0.107 R)
• M10: 6,560,764 km (0.116 R)
• M11: 7,933,025 km (0.115 R)
• M12: 9,121,730 km (0.115 R)
• M13: 10,034,726 km (0.078 R)
• M14: 10,469,457 km (0.103 R)
• M15: 11,237,343 km (0.034 R)
• M16: 12,936,027 km (0.087 R)
• M17: 13,347,272 km (0.032 R)
• M18: 13,767,193 km (0.081 R)
• M19: 15,080,064 km (0.094 R)
• M20: 26,366,924 km (0.026 R)
• M21: 28,472,215 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.1

Radius: 10.5

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 10.38 AU - 11.42 AU

Year: 13415 Days

Day: 6.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,837,902 km

• M1: 131,048 km (0.118 R)
• M2: 818,749 km (0.102 R)
• M3: 1,180,178 km (0.071 R)
• M4: 1,895,854 km (0.115 R)
• M5: 2,949,322 km (0.115 R)
• M6: 3,524,825 km (0.09 R)
• M7: 3,997,106 km (0.099 R)
• M8: 5,859,001 km (0.114 R)
• M9: 6,244,215 km (0.028 R)
• M10: 7,023,022 km (0.082 R)
• M11: 8,625,364 km (0.116 R)
• M12: 13,709,298 km (0.072 R)
• M13: 15,746,373 km (0.046 R)
• M14: 17,499,660 km (0.11 R)
• M15: 24,911,187 km (0.09 R)
• M16: 35,051,080 km (0.098 R)
• M17: 39,914,208 km (0.087 R)
• M18: 41,865,862 km (0.086 R)
• M19: 44,173,259 km (0.108 R)
• M20: 49,040,127 km (0.076 R)
• M21: 50,953,783 km (0.118 R)
• M22: 52,586,045 km (0.051 R)
• M23: 53,248,614 km (0.1 R)
• M24: 55,954,840 km (0.101 R)
• M25: 57,516,641 km (0.075 R)
• M26: 58,573,849 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.9

Radius: 7.6

Gravity: 13.23 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 12.75 AU - 12.95 AU

Year: 17172 Days

Day: 21.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,837,902 km

• M1: 97,089 km (0.064 R)
• M2: 476,020 km (0.075 R)
• M3: 994,975 km (0.097 R)
• M4: 1,345,633 km (0.072 R)
• M5: 1,607,429 km (0.117 R)
• M6: 1,997,281 km (0.114 R)
• M7: 3,613,237 km (0.092 R)
• M8: 4,349,558 km (0.113 R)
• M9: 4,684,508 km (0.091 R)
• M10: 5,793,626 km (0.114 R)
• M11: 6,409,670 km (0.103 R)
• M12: 6,755,690 km (0.093 R)
• M13: 7,344,358 km (0.108 R)
• M14: 8,265,731 km (0.039 R)
• M15: 10,103,541 km (0.101 R)
• M16: 10,513,140 km (0.096 R)
• M17: 12,528,672 km (0.09 R)
• M18: 14,492,144 km (0.071 R)
• M19: 18,149,214 km (0.094 R)
• M20: 20,097,876 km (0.05 R)
• M21: 20,839,731 km (0.056 R)
• M22: 22,279,910 km (0.089 R)
• M23: 23,682,839 km (0.109 R)
• M24: 45,371,089 km (0.097 R)
• M25: 47,781,859 km (0.101 R)
• M26: 53,031,996 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182.9

Radius: 6.6

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 14.04 AU - 16.06 AU

Year: 21765 Days

Day: 17.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,837,902 km

• M1: 86,468 km (0.109 R)
• M2: 779,854 km (0.1 R)
• M3: 1,242,710 km (0.1 R)
• M4: 1,465,610 km (0.107 R)
• M5: 1,684,322 km (0.061 R)
• M6: 2,456,846 km (0.085 R)
• M7: 3,296,090 km (0.118 R)
• M8: 4,989,538 km (0.104 R)
• M9: 10,765,811 km (0.08 R)
• M10: 11,149,978 km (0.038 R)
• M11: 18,140,387 km (0.118 R)
• M12: 23,071,732 km (0.095 R)
• M13: 25,989,339 km (0.116 R)
• M14: 29,355,590 km (0.054 R)
• M15: 34,046,082 km (0.101 R)
• M16: 37,686,396 km (0.099 R)
• M17: 38,571,717 km (0.119 R)
• M18: 39,730,203 km (0.091 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 16,711 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit