🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.89 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.5 AU - 2.06 AU

Year: 909 Days

Day: 39.8 Hours

Environment

Temp: -61 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.56 AU - 2.22 AU

Year: 995 Days

Day: 24.1 Hours

Environment

Temp: -80 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.84 AU - 2.82 AU

Year: 1362 Days

Day: 17.7 Hours

Environment

Temp: -89 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,481,147 km

• M1: 435,928 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.63 AU - 3.15 AU

Year: 1881 Days

Day: 26.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.72 AU - 3.26 AU

Year: 1980 Days

Day: 34.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.2

Radius: 14.4

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.29 AU - 8.73 AU

Year: 7106 Days

Day: 14 Hours

Environment

Temp: -172 °C

Axial Tilt: 124.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,481,147 km

• M1: 203,453 km (0.084 R)
• M2: 784,192 km (0.1 R)
• M3: 1,279,062 km (0.086 R)
• M4: 1,974,692 km (0.068 R)
• M5: 2,875,869 km (0.057 R)
• M6: 3,703,445 km (0.038 R)
• M7: 4,288,373 km (0.112 R)
• M8: 5,491,887 km (0.045 R)
• M9: 8,235,064 km (0.114 R)
• M10: 8,936,977 km (0.065 R)
• M11: 11,334,731 km (0.106 R)
• M12: 15,386,291 km (0.045 R)
• M13: 20,538,740 km (0.094 R)
• M14: 22,936,196 km (0.114 R)
• M15: 24,077,927 km (0.095 R)
• M16: 27,730,957 km (0.062 R)
• M17: 31,838,316 km (0.107 R)
• M18: 32,441,944 km (0.086 R)
• M19: 35,575,570 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492

Radius: 8.7

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 6.37 AU - 10.09 AU

Year: 9040 Days

Day: 14.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,481,147 km

• M1: 108,309 km (0.098 R)
• M2: 414,237 km (0.084 R)
• M3: 870,061 km (0.095 R)
• M4: 1,146,219 km (0.075 R)
• M5: 1,868,777 km (0.057 R)
• M6: 2,767,112 km (0.106 R)
• M7: 3,471,419 km (0.113 R)
• M8: 3,755,505 km (0.115 R)
• M9: 4,933,439 km (0.12 R)
• M10: 5,999,772 km (0.055 R)
• M11: 8,710,486 km (0.087 R)
• M12: 11,355,675 km (0.104 R)
• M13: 12,749,030 km (0.1 R)
• M14: 14,312,926 km (0.104 R)
• M15: 15,871,436 km (0.095 R)
• M16: 16,859,082 km (0.117 R)
• M17: 19,543,915 km (0.082 R)
• M18: 20,295,195 km (0.05 R)
• M19: 30,971,397 km (0.071 R)
• M20: 31,478,982 km (0.05 R)
• M21: 33,246,332 km (0.078 R)
• M22: 34,100,685 km (0.113 R)
• M23: 36,638,015 km (0.108 R)
• M24: 37,320,031 km (0.061 R)
• M25: 38,475,675 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.8

Radius: 3.2

Gravity: 55.64 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 12.48 AU - 17.78 AU

Year: 22533 Days

Day: 20.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 77,481,147 km

• M1: 51,312 km (0.119 R)
• M2: 163,810 km (0.083 R)
• M3: 328,218 km (0.053 R)
• M4: 454,778 km (0.097 R)
• M5: 788,231 km (0.117 R)
• M6: 1,083,837 km (0.079 R)
• M7: 1,339,051 km (0.049 R)
• M8: 1,464,713 km (0.09 R)
• M9: 1,967,810 km (0.032 R)
• M10: 3,164,893 km (0.118 R)
• M11: 3,331,694 km (0.109 R)
• M12: 3,622,812 km (0.112 R)
• M13: 3,867,853 km (0.092 R)
• M14: 4,740,308 km (0.09 R)
• M15: 5,534,822 km (0.107 R)
• M16: 6,154,008 km (0.09 R)
• M17: 6,636,610 km (0.097 R)
• M18: 7,626,948 km (0.058 R)
• M19: 7,775,948 km (0.037 R)
• M20: 7,977,755 km (0.096 R)
• M21: 9,262,651 km (0.109 R)
• M22: 13,639,735 km (0.112 R)
• M23: 15,306,405 km (0.082 R)
• M24: 17,704,160 km (0.09 R)
• M25: 19,128,481 km (0.051 R)
• M26: 19,774,894 km (0.066 R)
• M27: 20,627,452 km (0.092 R)
• M28: 22,405,273 km (0.117 R)
• M29: 24,605,259 km (0.093 R)
• M30: 24,822,027 km (0.111 R)
• M31: 28,109,739 km (0.094 R)
• M32: 31,676,003 km (0.088 R)
• M33: 32,710,322 km (0.105 R)
• M34: 36,648,636 km (0.096 R)
• M35: 45,612,540 km (0.063 R)
• M36: 46,103,670 km (0.1 R)
• M37: 47,263,502 km (0.047 R)
• M38: 48,953,958 km (0.06 R)
• M39: 53,718,651 km (0.098 R)
• M40: 54,817,746 km (0.095 R)
• M41: 64,566,890 km (0.082 R)
• M42: 70,500,091 km (0.12 R)
• M43: 72,259,661 km (0.106 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 18,103 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit