🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.02 AU - 1.14 AU

Year: 425 Days

Day: 13.6 Hours

Environment

Temp: -8 °C

Axial Tilt: 26.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.78 AU - 2.1 AU

Year: 1023 Days

Day: 23.2 Hours

Environment

Temp: -80 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.85 AU - 4.27 AU

Year: 3098 Days

Day: 12.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 45.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.9

Radius: 12.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.68 AU - 5.74 AU

Year: 3872 Days

Day: 11.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,230,438 km

• M1: 155,432 km (0.073 R)
• M2: 691,890 km (0.066 R)
• M3: 1,272,779 km (0.098 R)
• M4: 1,869,375 km (0.114 R)
• M5: 2,300,815 km (0.077 R)
• M6: 4,331,457 km (0.114 R)
• M7: 6,119,450 km (0.108 R)
• M8: 7,246,072 km (0.112 R)
• M9: 12,330,305 km (0.118 R)
• M10: 13,825,237 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.2

Radius: 13.3

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 10.67 AU - 11.89 AU

Year: 14349 Days

Day: 7.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,230,438 km

• M1: 261,347 km (0.037 R)
• M2: 865,274 km (0.111 R)
• M3: 1,477,728 km (0.076 R)
• M4: 3,683,100 km (0.091 R)
• M5: 4,419,869 km (0.11 R)
• M6: 4,941,666 km (0.067 R)
• M7: 8,196,467 km (0.043 R)
• M8: 9,296,909 km (0.093 R)
• M9: 12,099,775 km (0.089 R)
• M10: 15,645,993 km (0.107 R)
• M11: 16,476,560 km (0.032 R)
• M12: 18,390,515 km (0.093 R)
• M13: 18,891,369 km (0.09 R)
• M14: 31,993,150 km (0.073 R)
• M15: 33,454,422 km (0.118 R)
• M16: 33,951,237 km (0.038 R)
• M17: 46,476,618 km (0.086 R)
• M18: 48,349,583 km (0.066 R)
• M19: 54,956,723 km (0.09 R)
• M20: 57,938,358 km (0.073 R)
• M21: 60,289,887 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.4

Radius: 10.7

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 10.39 AU - 12.25 AU

Year: 14425 Days

Day: 10 Hours

Environment

Temp: -185 °C

Axial Tilt: 76.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,230,438 km

• M1: 133,890 km (0.119 R)
• M2: 490,382 km (0.051 R)
• M3: 866,172 km (0.098 R)
• M4: 1,572,573 km (0.112 R)
• M5: 1,998,628 km (0.089 R)
• M6: 2,418,848 km (0.045 R)
• M7: 2,761,277 km (0.104 R)
• M8: 5,443,119 km (0.09 R)
• M9: 5,884,432 km (0.092 R)
• M10: 6,880,904 km (0.089 R)
• M11: 7,620,366 km (0.077 R)
• M12: 8,220,852 km (0.07 R)
• M13: 9,104,227 km (0.105 R)
• M14: 9,941,526 km (0.098 R)
• M15: 15,781,977 km (0.077 R)
• M16: 16,834,847 km (0.12 R)
• M17: 18,830,782 km (0.045 R)
• M18: 25,250,924 km (0.097 R)
• M19: 27,429,368 km (0.04 R)
• M20: 28,291,351 km (0.103 R)
• M21: 29,505,786 km (0.113 R)
• M22: 30,870,119 km (0.076 R)
• M23: 33,115,284 km (0.051 R)
• M24: 35,848,736 km (0.067 R)
• M25: 37,928,745 km (0.087 R)
• M26: 47,516,472 km (0.05 R)
• M27: 56,501,620 km (0.06 R)
• M28: 59,671,748 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.3

Radius: 7.3

Gravity: 16.67 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 11.39 AU - 16.19 AU

Year: 19395 Days

Day: 18.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,230,438 km

• M1: 91,105 km (0.077 R)
• M2: 475,871 km (0.089 R)
• M3: 897,737 km (0.084 R)
• M4: 1,131,259 km (0.065 R)
• M5: 1,390,213 km (0.092 R)
• M6: 3,226,377 km (0.118 R)
• M7: 3,879,372 km (0.108 R)
• M8: 6,457,242 km (0.078 R)
• M9: 7,639,365 km (0.082 R)
• M10: 9,820,651 km (0.056 R)
• M11: 10,548,595 km (0.075 R)
• M12: 15,934,268 km (0.072 R)
• M13: 16,347,607 km (0.098 R)
• M14: 19,256,836 km (0.117 R)
• M15: 19,537,332 km (0.076 R)
• M16: 21,277,904 km (0.078 R)
• M17: 22,083,638 km (0.095 R)
• M18: 29,276,902 km (0.115 R)
• M19: 30,907,369 km (0.12 R)
• M20: 31,679,892 km (0.056 R)
• M21: 36,730,616 km (0.095 R)
• M22: 40,126,637 km (0.11 R)
• M23: 42,293,113 km (0.091 R)
• M24: 46,186,398 km (0.092 R)
• M25: 53,932,276 km (0.065 R)
• M26: 63,528,381 km (0.076 R)
• M27: 64,150,409 km (0.086 R)
• M28: 65,617,366 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.8

Radius: 3

Gravity: 26.2 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 10.66 AU - 17.44 AU

Year: 19946 Days

Day: 15.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,230,438 km

• M1: 37,549 km (0.113 R)
• M2: 174,132 km (0.059 R)
• M3: 368,609 km (0.071 R)
• M4: 763,548 km (0.096 R)
• M5: 868,416 km (0.039 R)
• M6: 1,217,577 km (0.091 R)
• M7: 1,764,058 km (0.106 R)
• M8: 2,055,026 km (0.087 R)
• M9: 2,221,678 km (0.106 R)
• M10: 3,290,704 km (0.11 R)
• M11: 3,441,649 km (0.085 R)
• M12: 4,693,184 km (0.086 R)
• M13: 6,295,378 km (0.069 R)
• M14: 8,743,248 km (0.12 R)
• M15: 10,149,767 km (0.093 R)
• M16: 10,577,766 km (0.041 R)
• M17: 10,741,426 km (0.058 R)
• M18: 11,017,734 km (0.116 R)
• M19: 12,170,684 km (0.119 R)
• M20: 13,593,061 km (0.104 R)
• M21: 15,469,617 km (0.093 R)
• M22: 15,680,250 km (0.111 R)
• M23: 17,740,662 km (0.108 R)
• M24: 21,855,651 km (0.105 R)
• M25: 25,377,484 km (0.033 R)
• M26: 25,572,559 km (0.117 R)
• M27: 32,131,379 km (0.086 R)
• M28: 33,518,301 km (0.08 R)
• M29: 34,824,140 km (0.064 R)
• M30: 44,642,997 km (0.104 R)
• M31: 45,356,279 km (0.098 R)
• M32: 51,338,399 km (0.101 R)
• M33: 51,494,280 km (0.113 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 12,111 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit