🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.48 AU - 0.56 AU

Year: 141 Days

Day: 46.1 Hours

Environment

Temp: 207 °C

Axial Tilt: 9.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.54 AU - 0.64 AU

Year: 170 Days

Day: 17.8 Hours

Environment

Temp: 204 °C

Axial Tilt: 33.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,858,239 km

• M1: 34,258 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.59 AU - 0.97 AU

Year: 258 Days

Day: 23.4 Hours

Environment

Temp: 99 °C

Axial Tilt: 13.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.96 AU - 1.04 AU

Year: 375 Days

Day: 39 Hours

Environment

Temp: 12 °C

Axial Tilt: 12.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 50,858,239 km

• M1: 43,383 km (0.052 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.42 AU - 2.26 AU

Year: 935 Days

Day: 19.2 Hours

Environment

Temp: -59 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.3

Radius: 9.2

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.14 AU - 5.2 AU

Year: 3782 Days

Day: 7.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,858,239 km

• M1: 114,442 km (0.114 R)
• M2: 433,385 km (0.113 R)
• M3: 804,537 km (0.086 R)
• M4: 1,688,362 km (0.092 R)
• M5: 2,044,554 km (0.108 R)
• M6: 2,362,599 km (0.103 R)
• M7: 3,082,165 km (0.109 R)
• M8: 4,195,023 km (0.095 R)
• M9: 4,596,843 km (0.107 R)
• M10: 4,902,921 km (0.12 R)
• M11: 5,582,394 km (0.079 R)
• M12: 6,323,352 km (0.071 R)
• M13: 6,702,882 km (0.089 R)
• M14: 7,159,604 km (0.086 R)
• M15: 7,734,808 km (0.12 R)
• M16: 9,233,929 km (0.078 R)
• M17: 9,646,669 km (0.064 R)
• M18: 11,042,567 km (0.114 R)
• M19: 11,507,816 km (0.117 R)
• M20: 12,342,273 km (0.114 R)
• M21: 13,216,373 km (0.112 R)
• M22: 15,294,587 km (0.056 R)
• M23: 15,979,745 km (0.111 R)
• M24: 17,581,639 km (0.066 R)
• M25: 19,839,370 km (0.091 R)
• M26: 20,338,130 km (0.119 R)
• M27: 20,654,080 km (0.112 R)
• M28: 22,552,029 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.9

Radius: 8.3

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.56 AU - 5.02 AU

Year: 3929 Days

Day: 12.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,858,239 km

• M1: 103,522 km (0.096 R)
• M2: 432,338 km (0.061 R)
• M3: 778,956 km (0.084 R)
• M4: 1,192,145 km (0.111 R)
• M5: 1,465,610 km (0.104 R)
• M6: 2,552,140 km (0.114 R)
• M7: 2,979,690 km (0.075 R)
• M8: 3,837,634 km (0.059 R)
• M9: 4,443,805 km (0.027 R)
• M10: 5,112,208 km (0.117 R)
• M11: 6,619,257 km (0.059 R)
• M12: 7,648,042 km (0.057 R)
• M13: 8,469,783 km (0.072 R)
• M14: 10,444,026 km (0.069 R)
• M15: 10,800,517 km (0.077 R)
• M16: 13,952,395 km (0.092 R)
• M17: 16,846,067 km (0.106 R)
• M18: 20,669,489 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.5

Radius: 11.4

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.04 AU - 6.02 AU

Year: 4227 Days

Day: 12.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,858,239 km

• M1: 141,819 km (0.064 R)
• M2: 567,275 km (0.115 R)
• M3: 1,037,910 km (0.094 R)
• M4: 1,864,887 km (0.041 R)
• M5: 2,758,734 km (0.114 R)
• M6: 3,134,973 km (0.062 R)
• M7: 3,649,290 km (0.094 R)
• M8: 4,277,901 km (0.101 R)
• M9: 4,977,271 km (0.042 R)
• M10: 5,680,082 km (0.076 R)
• M11: 6,192,753 km (0.113 R)
• M12: 8,813,259 km (0.054 R)
• M13: 10,765,362 km (0.103 R)
• M14: 13,073,807 km (0.059 R)
• M15: 13,538,159 km (0.052 R)
• M16: 14,769,947 km (0.113 R)
• M17: 15,227,567 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.9

Radius: 9.5

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.55 AU - 9.59 AU

Year: 10236 Days

Day: 14.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 50,858,239 km

• M1: 118,182 km (0.047 R)
• M2: 939,774 km (0.085 R)
• M3: 1,280,408 km (0.085 R)
• M4: 1,674,000 km (0.095 R)
• M5: 2,256,534 km (0.077 R)
• M6: 2,646,835 km (0.091 R)
• M7: 3,640,913 km (0.114 R)
• M8: 6,460,683 km (0.097 R)
• M9: 6,809,396 km (0.047 R)
• M10: 8,107,905 km (0.049 R)
• M11: 8,422,659 km (0.109 R)
• M12: 8,981,258 km (0.059 R)
• M13: 10,968,815 km (0.106 R)
• M14: 12,036,196 km (0.044 R)
• M15: 12,446,543 km (0.098 R)
• M16: 12,805,578 km (0.096 R)
• M17: 13,481,760 km (0.076 R)
• M18: 14,705,770 km (0.066 R)
• M19: 17,521,950 km (0.09 R)
• M20: 20,101,316 km (0.088 R)
• M21: 20,846,463 km (0.103 R)
• M22: 23,645,589 km (0.107 R)
• M23: 26,390,411 km (0.081 R)
• M24: 26,785,050 km (0.063 R)
• M25: 27,788,702 km (0.109 R)
• M26: 33,415,527 km (0.095 R)
• M27: 34,696,085 km (0.1 R)
• M28: 36,129,980 km (0.093 R)
• M29: 39,243,561 km (0.116 R)
• M30: 40,931,324 km (0.057 R)
• M31: 46,141,369 km (0.099 R)
• M32: 48,756,788 km (0.112 R)
• M33: 49,202,141 km (0.072 R)
• M34: 50,706,198 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 11,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit