🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.62 AU - 0.62 AU

Year: 210 Days

Day: 27.1 Hours

Environment

Temp: 8 °C

Axial Tilt: 23.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.63 AU - 0.83 AU

Year: 268 Days

Day: 43.6 Hours

Environment

Temp: 10 °C

Axial Tilt: 45.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.86 AU - 1.22 AU

Year: 457 Days

Day: 30 Hours

Environment

Temp: -49 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.06 AU - 1.2 AU

Year: 517 Days

Day: 18.5 Hours

Environment

Temp: -63 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,183,344 km

• M1: 46,226 km (0.108 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.25 AU - 1.35 AU

Year: 638 Days

Day: 34.1 Hours

Environment

Temp: -90 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,183,344 km

• M1: 95,144 km (0.084 R)
• M2: 289,621 km (0.063 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.31 AU - 2.31 AU

Year: 1511 Days

Day: 18.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,183,344 km

• M1: 1,573,919 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.7

Radius: 11

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.09 AU - 5.11 AU

Year: 3574 Days

Day: 12.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,183,344 km

• M1: 139,126 km (0.064 R)
• M2: 628,461 km (0.103 R)
• M3: 1,099,395 km (0.052 R)
• M4: 1,539,512 km (0.088 R)
• M5: 1,919,191 km (0.045 R)
• M6: 2,346,443 km (0.088 R)
• M7: 2,979,242 km (0.12 R)
• M8: 3,722,444 km (0.095 R)
• M9: 4,161,065 km (0.091 R)
• M10: 6,063,501 km (0.12 R)
• M11: 7,390,284 km (0.058 R)
• M12: 9,289,729 km (0.113 R)
• M13: 9,689,454 km (0.082 R)
• M14: 11,723,985 km (0.079 R)
• M15: 13,565,685 km (0.104 R)
• M16: 14,185,319 km (0.116 R)
• M17: 15,315,232 km (0.116 R)
• M18: 16,272,957 km (0.103 R)
• M19: 16,678,816 km (0.111 R)
• M20: 17,571,168 km (0.088 R)
• M21: 18,432,402 km (0.034 R)
• M22: 19,515,940 km (0.109 R)
• M23: 20,239,246 km (0.108 R)
• M24: 20,844,369 km (0.119 R)
• M25: 24,052,196 km (0.094 R)
• M26: 27,168,021 km (0.043 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 10.4

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.4 AU - 6.3 AU

Year: 5327 Days

Day: 10.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,183,344 km

• M1: 130,150 km (0.12 R)
• M2: 573,259 km (0.095 R)
• M3: 1,099,395 km (0.073 R)
• M4: 2,794,638 km (0.072 R)
• M5: 3,681,155 km (0.071 R)
• M6: 5,294,269 km (0.12 R)
• M7: 6,364,791 km (0.116 R)
• M8: 12,795,106 km (0.088 R)
• M9: 13,244,498 km (0.052 R)
• M10: 14,387,276 km (0.081 R)
• M11: 17,107,115 km (0.089 R)
• M12: 26,723,715 km (0.104 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.5

Radius: 9.4

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 8.99 AU - 9.35 AU

Year: 11953 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,183,344 km

• M1: 117,883 km (0.092 R)
• M2: 733,778 km (0.079 R)
• M3: 1,063,641 km (0.025 R)
• M4: 1,574,518 km (0.096 R)
• M5: 2,440,689 km (0.037 R)
• M6: 3,176,262 km (0.037 R)
• M7: 4,576,199 km (0.072 R)
• M8: 5,691,601 km (0.115 R)
• M9: 6,384,837 km (0.107 R)
• M10: 8,277,699 km (0.077 R)
• M11: 9,540,455 km (0.11 R)
• M12: 11,346,849 km (0.105 R)
• M13: 13,193,186 km (0.088 R)
• M14: 14,218,829 km (0.075 R)
• M15: 14,530,292 km (0.085 R)
• M16: 22,848,532 km (0.093 R)
• M17: 23,362,550 km (0.115 R)
• M18: 24,236,351 km (0.091 R)
• M19: 26,988,653 km (0.082 R)
• M20: 28,047,955 km (0.099 R)
• M21: 34,430,848 km (0.028 R)
• M22: 39,716,439 km (0.085 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 19,034 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit