🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.5 AU - 0.6 AU

Year: 148 Days

Day: 16.7 Hours

Environment

Temp: 181 °C

Axial Tilt: 33.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,207,814 km

• M1: 38,596 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.54 AU - 0.82 AU

Year: 204 Days

Day: 35.4 Hours

Environment

Temp: 169 °C

Axial Tilt: 12.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.73 AU - 0.79 AU

Year: 241 Days

Day: 31.7 Hours

Environment

Temp: 195 °C

Axial Tilt: 29.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,207,814 km

• M1: 475,422 km (0.072 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.68 AU - 1.74 AU

Year: 813 Days

Day: 40.4 Hours

Environment

Temp: -52 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,207,814 km

• M1: 457,321 km (0.054 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.75 AU - 2.73 AU

Year: 1218 Days

Day: 39.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.78 AU - 5.1 AU

Year: 3400 Days

Day: 42.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.9 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.1

Radius: 13.7

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 6.67 AU - 8.05 AU

Year: 7257 Days

Day: 10 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,207,814 km

• M1: 171,738 km (0.041 R)
• M2: 618,737 km (0.079 R)
• M3: 1,847,085 km (0.091 R)
• M4: 2,522,220 km (0.108 R)
• M5: 3,319,726 km (0.1 R)
• M6: 4,012,664 km (0.117 R)
• M7: 4,678,524 km (0.116 R)
• M8: 6,144,583 km (0.117 R)
• M9: 6,778,728 km (0.117 R)
• M10: 8,393,338 km (0.12 R)
• M11: 10,502,070 km (0.098 R)
• M12: 11,410,727 km (0.114 R)
• M13: 12,137,623 km (0.119 R)
• M14: 13,384,521 km (0.106 R)
• M15: 16,932,235 km (0.07 R)
• M16: 21,744,051 km (0.117 R)
• M17: 23,004,413 km (0.094 R)
• M18: 23,652,770 km (0.025 R)
• M19: 24,313,095 km (0.08 R)
• M20: 25,901,974 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.8

Radius: 12.9

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 9.69 AU - 12.73 AU

Year: 13641 Days

Day: 13.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,207,814 km

• M1: 160,369 km (0.104 R)
• M2: 646,562 km (0.104 R)
• M3: 1,362,089 km (0.067 R)
• M4: 3,000,784 km (0.063 R)
• M5: 3,593,042 km (0.073 R)
• M6: 4,978,767 km (0.088 R)
• M7: 5,586,433 km (0.095 R)
• M8: 7,618,720 km (0.086 R)
• M9: 9,292,421 km (0.114 R)
• M10: 10,613,520 km (0.063 R)
• M11: 11,021,474 km (0.116 R)
• M12: 12,308,763 km (0.096 R)
• M13: 14,038,713 km (0.076 R)
• M14: 15,180,743 km (0.108 R)
• M15: 16,929,841 km (0.06 R)
• M16: 17,407,358 km (0.102 R)
• M17: 20,196,909 km (0.075 R)
• M18: 20,915,577 km (0.085 R)
• M19: 25,280,694 km (0.083 R)
• M20: 26,539,859 km (0.11 R)
• M21: 30,568,829 km (0.1 R)
• M22: 33,720,557 km (0.106 R)
• M23: 35,894,663 km (0.12 R)
• M24: 38,160,771 km (0.089 R)
• M25: 42,535,911 km (0.098 R)
• M26: 42,976,177 km (0.107 R)
• M27: 48,501,126 km (0.101 R)
• M28: 49,465,733 km (0.072 R)
• M29: 51,101,735 km (0.104 R)
• M30: 59,095,048 km (0.099 R)
• M31: 62,059,629 km (0.089 R)
• M32: 63,387,460 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.2

Radius: 7.5

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 14.82 AU - 14.88 AU

Year: 20798 Days

Day: 24.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 106.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,207,814 km

• M1: 93,349 km (0.105 R)
• M2: 424,559 km (0.042 R)
• M3: 892,501 km (0.07 R)
• M4: 1,231,340 km (0.051 R)
• M5: 1,508,695 km (0.072 R)
• M6: 1,918,892 km (0.1 R)
• M7: 2,602,704 km (0.113 R)
• M8: 3,168,483 km (0.1 R)
• M9: 4,509,478 km (0.095 R)
• M10: 4,747,788 km (0.102 R)
• M11: 6,747,911 km (0.112 R)
• M12: 8,929,347 km (0.118 R)
• M13: 9,750,340 km (0.117 R)
• M14: 10,266,603 km (0.098 R)
• M15: 11,732,363 km (0.102 R)
• M16: 12,649,098 km (0.074 R)
• M17: 13,542,347 km (0.103 R)
• M18: 17,289,026 km (0.096 R)
• M19: 17,706,404 km (0.092 R)
• M20: 20,168,935 km (0.118 R)
• M21: 23,353,574 km (0.054 R)
• M22: 30,577,356 km (0.052 R)
• M23: 32,181,344 km (0.103 R)
• M24: 33,324,272 km (0.07 R)
• M25: 38,874,802 km (0.119 R)
• M26: 39,303,549 km (0.076 R)
• M27: 39,735,438 km (0.07 R)
• M28: 40,170,619 km (0.119 R)
• M29: 42,544,886 km (0.116 R)
• M30: 51,763,107 km (0.06 R)
• M31: 53,154,816 km (0.108 R)
• M32: 64,596,959 km (0.072 R)

Kuiper Belt

Range: 30.2 - 45.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 17,476 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit