🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.54 AU - 0.66 AU

Year: 175 Days

Day: 14.2 Hours

Environment

Temp: 140 °C

Axial Tilt: 43.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.4 AU - 1.4 AU

Year: 624 Days

Day: 44 Hours

Environment

Temp: -50 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,030,666 km

• M1: 29,770 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.62 AU - 2.94 AU

Year: 1746 Days

Day: 32.7 Hours

Environment

Temp: -97 °C

Axial Tilt: 41.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.89 AU - 3.25 AU

Year: 2026 Days

Day: 45.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819

Radius: 9.9

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.22 AU - 4.66 AU

Year: 3525 Days

Day: 5.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,030,666 km

• M1: 123,717 km (0.098 R)
• M2: 476,768 km (0.11 R)
• M3: 1,116,000 km (0.117 R)
• M4: 1,465,910 km (0.057 R)
• M5: 4,583,230 km (0.103 R)
• M6: 5,337,652 km (0.083 R)
• M7: 5,999,024 km (0.12 R)
• M8: 7,892,185 km (0.113 R)
• M9: 10,318,064 km (0.099 R)
• M10: 15,364,449 km (0.109 R)
• M11: 21,576,950 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994

Radius: 12.2

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 7.28 AU - 10 AU

Year: 9567 Days

Day: 9.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,030,666 km

• M1: 151,842 km (0.12 R)
• M2: 624,571 km (0.088 R)
• M3: 1,500,467 km (0.109 R)
• M4: 1,938,639 km (0.082 R)
• M5: 4,156,427 km (0.043 R)
• M6: 5,068,077 km (0.096 R)
• M7: 5,889,668 km (0.073 R)
• M8: 6,918,004 km (0.087 R)
• M9: 10,035,923 km (0.037 R)
• M10: 11,843,963 km (0.106 R)
• M11: 16,166,593 km (0.114 R)
• M12: 28,176,310 km (0.075 R)
• M13: 33,802,836 km (0.063 R)
• M14: 35,590,381 km (0.073 R)
• M15: 38,197,572 km (0.046 R)
• M16: 49,147,837 km (0.114 R)
• M17: 51,129,710 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.3

Radius: 14.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 10.11 AU - 10.13 AU

Year: 12128 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 108.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 33,030,666 km

• M1: 219,011 km (0.078 R)
• M2: 686,654 km (0.034 R)
• M3: 1,187,059 km (0.086 R)
• M4: 1,731,745 km (0.119 R)
• M5: 3,035,939 km (0.109 R)
• M6: 3,650,338 km (0.098 R)
• M7: 5,008,836 km (0.073 R)
• M8: 5,804,098 km (0.112 R)
• M9: 7,250,410 km (0.065 R)
• M10: 8,058,239 km (0.065 R)
• M11: 9,805,841 km (0.092 R)
• M12: 13,497,767 km (0.096 R)
• M13: 15,295,335 km (0.083 R)
• M14: 15,752,207 km (0.086 R)
• M15: 17,107,863 km (0.118 R)
• M16: 17,671,548 km (0.069 R)
• M17: 19,285,559 km (0.075 R)
• M18: 19,819,175 km (0.116 R)
• M19: 20,441,053 km (0.074 R)
• M20: 21,076,096 km (0.115 R)
• M21: 28,757,797 km (0.052 R)
• M22: 30,573,018 km (0.069 R)
• M23: 31,090,626 km (0.106 R)
• M24: 37,059,133 km (0.097 R)
• M25: 38,602,384 km (0.064 R)
• M26: 39,328,831 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.1

Radius: 3.2

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 11.29 AU - 16.01 AU

Year: 18999 Days

Day: 23.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,030,666 km

• M1: 39,793 km (0.111 R)
• M2: 358,586 km (0.111 R)
• M3: 895,343 km (0.113 R)
• M4: 1,013,077 km (0.087 R)
• M5: 1,591,871 km (0.11 R)
• M6: 1,738,178 km (0.105 R)
• M7: 1,850,077 km (0.103 R)
• M8: 2,927,481 km (0.109 R)
• M9: 4,163,608 km (0.091 R)
• M10: 5,409,758 km (0.077 R)
• M11: 5,958,633 km (0.11 R)
• M12: 8,527,079 km (0.096 R)
• M13: 12,149,441 km (0.094 R)
• M14: 12,251,168 km (0.081 R)
• M15: 13,354,303 km (0.066 R)
• M16: 14,925,828 km (0.098 R)
• M17: 22,752,939 km (0.063 R)
• M18: 23,062,905 km (0.116 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 11,637 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit