🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.81 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.32 AU - 1.9 AU

Year: 735 Days

Day: 24.5 Hours

Environment

Temp: -47 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,303,143 km

• M1: 388,805 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.55 AU - 2.25 AU

Year: 943 Days

Day: 19.4 Hours

Environment

Temp: -46 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,303,143 km

• M1: 1,240,166 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.66 AU - 2.4 AU

Year: 1041 Days

Day: 47.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.04 AU - 2.46 AU

Year: 1215 Days

Day: 31.2 Hours

Environment

Temp: -73 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.25 AU - 2.81 AU

Year: 1448 Days

Day: 34.7 Hours

Environment

Temp: -85 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,303,143 km

• M1: 60,886 km (0.12 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.59 AU - 3.71 AU

Year: 2510 Days

Day: 30.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,303,143 km

• M1: 30,518 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.8

Radius: 9.3

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.18 AU - 6.92 AU

Year: 5356 Days

Day: 6.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,303,143 km

• M1: 127,158 km (0.077 R)
• M2: 498,460 km (0.114 R)
• M3: 815,458 km (0.095 R)
• M4: 1,192,893 km (0.041 R)
• M5: 1,698,684 km (0.088 R)
• M6: 3,101,912 km (0.113 R)
• M7: 3,416,067 km (0.106 R)
• M8: 3,905,103 km (0.108 R)
• M9: 4,391,745 km (0.114 R)
• M10: 4,866,419 km (0.058 R)
• M11: 5,265,097 km (0.113 R)
• M12: 7,183,091 km (0.119 R)
• M13: 7,665,544 km (0.089 R)
• M14: 8,657,079 km (0.092 R)
• M15: 9,526,392 km (0.074 R)
• M16: 10,539,918 km (0.092 R)
• M17: 14,064,444 km (0.119 R)
• M18: 14,710,707 km (0.079 R)
• M19: 18,368,823 km (0.045 R)
• M20: 20,136,173 km (0.028 R)
• M21: 20,957,016 km (0.118 R)
• M22: 23,032,537 km (0.04 R)
• M23: 24,541,381 km (0.112 R)
• M24: 27,173,406 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.5

Radius: 8.5

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.66 AU - 9.38 AU

Year: 9749 Days

Day: 14.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 52.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,303,143 km

• M1: 106,065 km (0.064 R)
• M2: 585,975 km (0.073 R)
• M3: 1,059,452 km (0.079 R)
• M4: 1,554,771 km (0.058 R)
• M5: 3,948,187 km (0.114 R)
• M6: 5,362,036 km (0.108 R)
• M7: 8,291,013 km (0.101 R)
• M8: 9,482,710 km (0.067 R)
• M9: 9,920,583 km (0.105 R)
• M10: 10,732,450 km (0.049 R)
• M11: 11,533,098 km (0.087 R)
• M12: 12,837,442 km (0.091 R)
• M13: 14,876,611 km (0.11 R)
• M14: 33,453,824 km (0.096 R)
• M15: 42,943,116 km (0.114 R)
• M16: 44,681,443 km (0.055 R)
• M17: 45,636,626 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.6

Radius: 6.8

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 13.13 AU - 19.87 AU

Year: 24121 Days

Day: 21.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,303,143 km

• M1: 89,160 km (0.095 R)
• M2: 706,551 km (0.074 R)
• M3: 1,569,581 km (0.082 R)
• M4: 7,453,714 km (0.082 R)
• M5: 8,562,085 km (0.039 R)
• M6: 9,666,566 km (0.12 R)
• M7: 14,967,566 km (0.1 R)
• M8: 15,562,816 km (0.115 R)
• M9: 16,721,302 km (0.082 R)
• M10: 20,722,596 km (0.072 R)
• M11: 24,903,707 km (0.036 R)
• M12: 25,318,991 km (0.083 R)
• M13: 29,498,456 km (0.107 R)
• M14: 38,221,807 km (0.117 R)
• M15: 40,179,595 km (0.069 R)
• M16: 49,493,109 km (0.053 R)
• M17: 56,679,641 km (0.077 R)
• M18: 59,405,913 km (0.106 R)
• M19: 65,906,688 km (0.074 R)

Kuiper Belt

Range: 30.5 - 52.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 16,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit