🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.79 AU - 1.13 AU

Year: 345 Days

Day: 41.7 Hours

Environment

Temp: 48 °C

Axial Tilt: 26.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 86,859,346 km

• M1: 49,966 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.98 AU - 2.7 AU

Year: 1314 Days

Day: 30.1 Hours

Environment

Temp: -86 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.59 AU - 3.17 AU

Year: 1794 Days

Day: 18.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.84 AU - 3.06 AU

Year: 1860 Days

Day: 26.4 Hours

Environment

Temp: -100 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.75 AU - 4.15 AU

Year: 2352 Days

Day: 34.1 Hours

Environment

Temp: -111 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 11.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 11.2

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 8.82 AU - 14.42 AU

Year: 14541 Days

Day: 13.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,859,346 km

• M1: 153,338 km (0.072 R)
• M2: 1,958,386 km (0.102 R)
• M3: 2,323,554 km (0.098 R)
• M4: 3,808,313 km (0.088 R)
• M5: 4,470,583 km (0.118 R)
• M6: 5,674,696 km (0.036 R)
• M7: 6,501,972 km (0.073 R)
• M8: 9,372,606 km (0.058 R)
• M9: 10,320,159 km (0.049 R)
• M10: 12,818,144 km (0.087 R)
• M11: 14,303,501 km (0.111 R)
• M12: 29,283,783 km (0.063 R)
• M13: 32,511,208 km (0.054 R)
• M14: 39,409,913 km (0.1 R)
• M15: 42,796,510 km (0.052 R)
• M16: 47,082,339 km (0.09 R)
• M17: 48,378,156 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.5

Radius: 3.3

Gravity: 27.32 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 17.71 AU - 17.93 AU

Year: 27614 Days

Day: 19.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 86,859,346 km

• M1: 42,037 km (0.102 R)
• M2: 398,080 km (0.093 R)
• M3: 665,262 km (0.115 R)
• M4: 898,634 km (0.084 R)
• M5: 1,746,854 km (0.092 R)
• M6: 1,969,007 km (0.08 R)
• M7: 2,168,272 km (0.107 R)
• M8: 2,537,778 km (0.102 R)
• M9: 2,677,802 km (0.108 R)
• M10: 3,208,725 km (0.027 R)
• M11: 5,445,662 km (0.112 R)
• M12: 6,000,221 km (0.074 R)
• M13: 6,591,432 km (0.116 R)
• M14: 7,174,415 km (0.097 R)
• M15: 8,701,809 km (0.095 R)
• M16: 13,901,382 km (0.092 R)
• M17: 14,118,000 km (0.087 R)
• M18: 15,542,172 km (0.046 R)
• M19: 15,775,395 km (0.043 R)
• M20: 16,569,909 km (0.092 R)
• M21: 17,224,549 km (0.075 R)
• M22: 21,421,517 km (0.095 R)
• M23: 21,613,900 km (0.11 R)
• M24: 22,992,445 km (0.077 R)
• M25: 23,396,957 km (0.101 R)
• M26: 24,638,620 km (0.101 R)
• M27: 29,686,351 km (0.045 R)
• M28: 37,152,482 km (0.112 R)
• M29: 39,268,543 km (0.108 R)
• M30: 40,282,967 km (0.07 R)
• M31: 41,463,593 km (0.1 R)
• M32: 42,667,108 km (0.086 R)
• M33: 52,968,866 km (0.093 R)
• M34: 55,644,574 km (0.095 R)
• M35: 56,923,486 km (0.062 R)
• M36: 57,662,948 km (0.032 R)
• M37: 61,845,106 km (0.064 R)
• M38: 63,217,068 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 505.9

Radius: 6.2

Gravity: 13.16 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 15.63 AU - 20.67 AU

Year: 28385 Days

Day: 21.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,859,346 km

• M1: 77,193 km (0.107 R)
• M2: 488,587 km (0.057 R)
• M3: 988,692 km (0.061 R)
• M4: 1,747,602 km (0.104 R)
• M5: 2,002,667 km (0.108 R)
• M6: 3,028,758 km (0.043 R)
• M7: 4,508,581 km (0.112 R)
• M8: 5,714,938 km (0.037 R)
• M9: 6,324,699 km (0.065 R)
• M10: 6,738,935 km (0.078 R)
• M11: 7,724,486 km (0.082 R)
• M12: 8,305,674 km (0.081 R)
• M13: 8,802,638 km (0.08 R)
• M14: 11,724,883 km (0.085 R)
• M15: 11,930,729 km (0.105 R)
• M16: 12,491,721 km (0.082 R)
• M17: 13,143,819 km (0.112 R)
• M18: 14,515,481 km (0.108 R)
• M19: 15,154,713 km (0.085 R)
• M20: 15,481,285 km (0.095 R)
• M21: 19,294,535 km (0.078 R)
• M22: 23,148,027 km (0.068 R)
• M23: 28,462,042 km (0.088 R)
• M24: 28,959,305 km (0.113 R)
• M25: 32,468,423 km (0.113 R)
• M26: 36,835,035 km (0.105 R)
• M27: 38,929,256 km (0.085 R)
• M28: 40,629,435 km (0.032 R)
• M29: 45,011,307 km (0.102 R)
• M30: 50,238,107 km (0.097 R)
• M31: 51,329,872 km (0.104 R)
• M32: 54,128,250 km (0.028 R)
• M33: 72,618,098 km (0.093 R)
• M34: 80,018,106 km (0.116 R)
• M35: 80,759,812 km (0.098 R)
• M36: 85,822,054 km (0.101 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: 417 - 10,744 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit