🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.77 AU - 0.91 AU

Year: 287 Days

Day: 29.2 Hours

Environment

Temp: 79 °C

Axial Tilt: 6.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 85,019,356 km

• M1: 36,651 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.21 AU - 2.89 AU

Year: 1518 Days

Day: 16.1 Hours

Environment

Temp: -103 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,019,356 km

• M1: 2,028,398 km (0.097 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.69 AU - 3.15 AU

Year: 1860 Days

Day: 42.2 Hours

Environment

Temp: -96 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.35 AU - 3.65 AU

Year: 1937 Days

Day: 30 Hours

Environment

Temp: -103 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.74 AU - 4.18 AU

Year: 2938 Days

Day: 27.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.2

Radius: 9.8

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.9 AU - 5.6 AU

Year: 4484 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,019,356 km

• M1: 122,820 km (0.101 R)
• M2: 482,752 km (0.074 R)
• M3: 821,292 km (0.083 R)
• M4: 1,145,620 km (0.105 R)
• M5: 1,454,091 km (0.102 R)
• M6: 1,832,125 km (0.051 R)
• M7: 2,199,537 km (0.092 R)
• M8: 2,790,000 km (0.083 R)
• M9: 3,220,393 km (0.034 R)
• M10: 4,191,583 km (0.109 R)
• M11: 5,291,576 km (0.105 R)
• M12: 5,923,926 km (0.081 R)
• M13: 7,167,832 km (0.095 R)
• M14: 7,654,474 km (0.11 R)
• M15: 9,047,081 km (0.116 R)
• M16: 10,469,308 km (0.116 R)
• M17: 10,824,453 km (0.079 R)
• M18: 12,474,368 km (0.096 R)
• M19: 15,914,221 km (0.117 R)
• M20: 16,384,408 km (0.116 R)
• M21: 18,680,735 km (0.087 R)
• M22: 20,833,149 km (0.118 R)
• M23: 23,295,680 km (0.109 R)
• M24: 24,441,450 km (0.094 R)
• M25: 26,352,263 km (0.083 R)
• M26: 27,010,644 km (0.114 R)
• M27: 28,189,325 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269

Radius: 8.7

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.47 AU - 9.09 AU

Year: 8090 Days

Day: 11.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,019,356 km

• M1: 108,159 km (0.053 R)
• M2: 617,690 km (0.086 R)
• M3: 995,424 km (0.075 R)
• M4: 2,216,442 km (0.115 R)
• M5: 2,642,347 km (0.109 R)
• M6: 3,122,108 km (0.07 R)
• M7: 3,702,697 km (0.07 R)
• M8: 4,328,914 km (0.078 R)
• M9: 4,680,469 km (0.049 R)
• M10: 7,137,314 km (0.099 R)
• M11: 8,181,059 km (0.102 R)
• M12: 9,572,319 km (0.099 R)
• M13: 11,680,153 km (0.068 R)
• M14: 12,363,516 km (0.093 R)
• M15: 14,188,610 km (0.048 R)
• M16: 15,136,911 km (0.078 R)
• M17: 15,423,690 km (0.118 R)
• M18: 17,035,607 km (0.07 R)
• M19: 20,802,033 km (0.077 R)
• M20: 29,040,088 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.1

Radius: 4.8

Gravity: 30.04 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 13.76 AU - 17.92 AU

Year: 23501 Days

Day: 18.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,019,356 km

• M1: 60,288 km (0.092 R)
• M2: 352,153 km (0.086 R)
• M3: 624,272 km (0.101 R)
• M4: 1,079,947 km (0.112 R)
• M5: 2,446,524 km (0.116 R)
• M6: 3,057,780 km (0.032 R)
• M7: 7,296,935 km (0.109 R)
• M8: 8,168,642 km (0.116 R)
• M9: 8,824,330 km (0.073 R)
• M10: 10,116,406 km (0.072 R)
• M11: 10,489,653 km (0.056 R)
• M12: 23,177,049 km (0.095 R)
• M13: 26,538,662 km (0.056 R)
• M14: 34,487,396 km (0.063 R)
• M15: 36,333,882 km (0.084 R)
• M16: 38,846,528 km (0.045 R)
• M17: 55,237,817 km (0.086 R)
• M18: 55,620,937 km (0.072 R)
• M19: 58,154,975 km (0.078 R)
• M20: 61,995,302 km (0.078 R)
• M21: 76,644,823 km (0.101 R)
• M22: 83,499,248 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 11,453 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit