🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.65 AU - 0.65 AU

Year: 221 Days

Day: 26.1 Hours

Environment

Temp: 35 °C

Axial Tilt: 19.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.53 AU - 0.81 AU

Year: 231 Days

Day: 13.8 Hours

Environment

Temp: 23 °C

Axial Tilt: 33.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 26,772,641 km

• M1: 396,584 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.66 AU - 1.04 AU

Year: 331 Days

Day: 40.9 Hours

Environment

Temp: -21 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 26,772,641 km

• M1: 112,348 km (0.115 R)
• M2: 804,388 km (0.098 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.34 AU - 2.1 AU

Year: 951 Days

Day: 39.4 Hours

Environment

Temp: -97 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.8

Radius: 11.7

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.79 AU - 4.71 AU

Year: 3695 Days

Day: 8.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,772,641 km

• M1: 146,008 km (0.065 R)
• M2: 670,198 km (0.083 R)
• M3: 1,148,164 km (0.079 R)
• M4: 2,029,744 km (0.115 R)
• M5: 3,066,308 km (0.102 R)
• M6: 4,343,125 km (0.089 R)
• M7: 6,155,055 km (0.104 R)
• M8: 7,665,544 km (0.081 R)
• M9: 8,425,352 km (0.07 R)
• M10: 8,925,458 km (0.089 R)
• M11: 10,891,473 km (0.106 R)
• M12: 11,485,377 km (0.088 R)
• M13: 13,043,139 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.8

Radius: 12.1

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.53 AU - 6.71 AU

Year: 7184 Days

Day: 9.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,772,641 km

• M1: 152,291 km (0.106 R)
• M2: 1,174,194 km (0.097 R)
• M3: 1,559,109 km (0.068 R)
• M4: 2,125,487 km (0.113 R)
• M5: 3,071,543 km (0.099 R)
• M6: 3,748,474 km (0.047 R)
• M7: 4,977,420 km (0.118 R)
• M8: 5,685,018 km (0.037 R)
• M9: 6,388,577 km (0.066 R)
• M10: 8,550,865 km (0.116 R)
• M11: 13,732,337 km (0.069 R)
• M12: 20,012,006 km (0.088 R)
• M13: 20,930,986 km (0.108 R)
• M14: 23,101,202 km (0.107 R)
• M15: 25,329,014 km (0.044 R)
• M16: 26,952,899 km (0.084 R)
• M17: 29,910,748 km (0.085 R)
• M18: 34,579,997 km (0.111 R)
• M19: 37,718,261 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.1

Radius: 14

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 5.92 AU - 8.6 AU

Year: 8250 Days

Day: 5.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 26,772,641 km

• M1: 174,282 km (0.105 R)
• M2: 937,829 km (0.115 R)
• M3: 2,362,001 km (0.101 R)
• M4: 3,436,712 km (0.09 R)
• M5: 4,384,564 km (0.086 R)
• M6: 6,107,632 km (0.071 R)
• M7: 6,987,118 km (0.089 R)
• M8: 7,497,845 km (0.066 R)
• M9: 7,949,481 km (0.057 R)
• M10: 8,462,901 km (0.112 R)
• M11: 10,487,708 km (0.039 R)
• M12: 11,371,233 km (0.089 R)
• M13: 12,191,628 km (0.117 R)
• M14: 12,645,059 km (0.112 R)
• M15: 18,112,712 km (0.119 R)
• M16: 22,442,373 km (0.118 R)
• M17: 24,174,567 km (0.114 R)
• M18: 29,599,136 km (0.074 R)
• M19: 30,420,129 km (0.1 R)
• M20: 33,084,317 km (0.075 R)
• M21: 33,524,584 km (0.091 R)
• M22: 35,554,477 km (0.058 R)
• M23: 37,784,682 km (0.084 R)
• M24: 38,386,664 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.8

Radius: 13.7

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.74 AU - 9.9 AU

Year: 11047 Days

Day: 14.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,772,641 km

• M1: 174,282 km (0.102 R)
• M2: 812,466 km (0.093 R)
• M3: 1,320,800 km (0.071 R)
• M4: 1,963,921 km (0.088 R)
• M5: 5,496,226 km (0.115 R)
• M6: 5,974,191 km (0.038 R)
• M7: 6,790,547 km (0.073 R)
• M8: 11,573,789 km (0.099 R)
• M9: 13,236,569 km (0.089 R)
• M10: 15,825,360 km (0.049 R)
• M11: 16,739,254 km (0.075 R)
• M12: 17,387,761 km (0.112 R)
• M13: 18,114,357 km (0.115 R)
• M14: 19,050,840 km (0.079 R)
• M15: 21,430,344 km (0.096 R)
• M16: 22,336,458 km (0.073 R)
• M17: 24,001,782 km (0.057 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: 294 - 18,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit