🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.54 AU - 0.66 AU

Year: 300 Days

Day: 16.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,299,795 km

• M1: 120,127 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.3

Radius: 10.4

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.8 AU - 1.26 AU

Year: 675 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,299,795 km

• M1: 129,402 km (0.097 R)
• M2: 481,705 km (0.032 R)
• M3: 862,581 km (0.113 R)
• M4: 1,749,397 km (0.065 R)
• M5: 2,466,869 km (0.03 R)
• M6: 3,264,076 km (0.045 R)
• M7: 3,658,865 km (0.047 R)
• M8: 4,039,890 km (0.079 R)
• M9: 4,847,869 km (0.115 R)
• M10: 5,254,027 km (0.05 R)
• M11: 5,663,775 km (0.1 R)
• M12: 6,526,806 km (0.066 R)
• M13: 7,314,588 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.2

Radius: 14.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.2 AU - 2.74 AU

Year: 2506 Days

Day: 11.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,299,795 km

• M1: 270,772 km (0.108 R)
• M2: 908,059 km (0.074 R)
• M3: 1,366,726 km (0.083 R)
• M4: 2,082,103 km (0.081 R)
• M5: 2,556,179 km (0.082 R)
• M6: 3,022,625 km (0.116 R)
• M7: 4,779,054 km (0.084 R)
• M8: 5,790,335 km (0.12 R)
• M9: 7,025,565 km (0.072 R)
• M10: 7,767,121 km (0.091 R)
• M11: 8,993,824 km (0.103 R)
• M12: 10,383,439 km (0.085 R)
• M13: 11,994,159 km (0.087 R)
• M14: 14,596,863 km (0.101 R)
• M15: 15,905,395 km (0.076 R)
• M16: 16,511,566 km (0.109 R)
• M17: 17,080,636 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.4

Radius: 10.7

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.38 AU - 5.76 AU

Year: 7371 Days

Day: 11.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,299,795 km

• M1: 133,292 km (0.045 R)
• M2: 493,224 km (0.111 R)
• M3: 856,448 km (0.084 R)
• M4: 1,564,794 km (0.106 R)
• M5: 2,024,957 km (0.078 R)
• M6: 2,665,984 km (0.066 R)
• M7: 3,328,104 km (0.087 R)
• M8: 4,377,682 km (0.085 R)
• M9: 5,666,468 km (0.047 R)
• M10: 7,119,512 km (0.074 R)
• M11: 8,849,312 km (0.081 R)
• M12: 10,413,059 km (0.056 R)
• M13: 11,087,446 km (0.094 R)
• M14: 11,536,090 km (0.048 R)
• M15: 12,311,007 km (0.081 R)
• M16: 13,230,735 km (0.069 R)
• M17: 14,488,255 km (0.101 R)
• M18: 15,206,923 km (0.114 R)
• M19: 17,239,659 km (0.113 R)
• M20: 17,639,983 km (0.066 R)
• M21: 18,046,590 km (0.083 R)
• M22: 18,598,456 km (0.091 R)
• M23: 19,519,231 km (0.101 R)
• M24: 19,881,258 km (0.107 R)
• M25: 27,282,612 km (0.092 R)
• M26: 33,881,674 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 9.2

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.84 AU - 5.86 AU

Year: 7990 Days

Day: 8.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,299,795 km

• M1: 119,230 km (0.051 R)
• M2: 424,409 km (0.103 R)
• M3: 864,825 km (0.059 R)
• M4: 1,215,632 km (0.103 R)
• M5: 2,390,724 km (0.099 R)
• M6: 3,257,344 km (0.094 R)
• M7: 3,596,034 km (0.093 R)
• M8: 5,054,314 km (0.077 R)
• M9: 5,839,104 km (0.086 R)
• M10: 8,097,583 km (0.082 R)
• M11: 9,253,526 km (0.078 R)
• M12: 9,762,757 km (0.093 R)
• M13: 11,212,211 km (0.117 R)
• M14: 12,339,132 km (0.077 R)
• M15: 12,956,372 km (0.066 R)
• M16: 15,455,106 km (0.099 R)
• M17: 24,448,331 km (0.086 R)
• M18: 25,503,744 km (0.105 R)
• M19: 26,084,633 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 990.8

Radius: 5.2

Gravity: 36.64 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 5.73 AU - 9.01 AU

Year: 12919 Days

Day: 21.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,299,795 km

• M1: 67,020 km (0.048 R)
• M2: 369,208 km (0.078 R)
• M3: 570,865 km (0.064 R)
• M4: 1,489,845 km (0.12 R)
• M5: 2,110,826 km (0.115 R)
• M6: 2,866,295 km (0.104 R)
• M7: 3,188,230 km (0.117 R)
• M8: 3,787,818 km (0.032 R)
• M9: 4,206,692 km (0.098 R)
• M10: 4,395,335 km (0.072 R)
• M11: 6,155,354 km (0.079 R)
• M12: 6,317,069 km (0.106 R)
• M13: 6,948,821 km (0.035 R)
• M14: 8,635,687 km (0.057 R)
• M15: 10,405,878 km (0.027 R)
• M16: 11,835,735 km (0.054 R)
• M17: 12,340,179 km (0.105 R)
• M18: 13,527,387 km (0.094 R)
• M19: 14,788,647 km (0.09 R)
• M20: 15,152,469 km (0.055 R)
• M21: 15,671,873 km (0.055 R)
• M22: 18,700,332 km (0.039 R)
• M23: 19,470,911 km (0.098 R)
• M24: 27,272,440 km (0.061 R)
• M25: 27,929,773 km (0.064 R)
• M26: 29,849,562 km (0.108 R)
• M27: 30,313,765 km (0.069 R)
• M28: 31,375,610 km (0.089 R)
• M29: 38,683,616 km (0.103 R)
• M30: 46,736,170 km (0.034 R)
• M31: 50,903,817 km (0.073 R)
• M32: 52,570,487 km (0.113 R)
• M33: 53,247,268 km (0.103 R)
• M34: 53,758,593 km (0.034 R)
• M35: 57,968,128 km (0.079 R)
• M36: 61,079,165 km (0.103 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: 430 - 14,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit