🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.14 AU - 1.36 AU

Year: 524 Days

Day: 46.2 Hours

Environment

Temp: -22 °C

Axial Tilt: 38.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 67,873,647 km

• M1: 148,551 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.83 AU - 2.63 AU

Year: 1248 Days

Day: 26.7 Hours

Environment

Temp: -84 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,873,647 km

• M1: 18,401 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.38 AU - 3.42 AU

Year: 1851 Days

Day: 35.1 Hours

Environment

Temp: -112 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.9

Radius: 10.3

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.21 AU - 5.03 AU

Year: 3721 Days

Day: 11.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,873,647 km

• M1: 128,056 km (0.111 R)
• M2: 472,879 km (0.096 R)
• M3: 811,568 km (0.11 R)
• M4: 2,558,273 km (0.111 R)
• M5: 3,223,984 km (0.095 R)
• M6: 3,548,611 km (0.076 R)
• M7: 4,801,194 km (0.075 R)
• M8: 5,226,650 km (0.108 R)
• M9: 9,020,153 km (0.087 R)
• M10: 10,514,636 km (0.049 R)
• M11: 11,364,352 km (0.112 R)
• M12: 11,850,844 km (0.112 R)
• M13: 14,495,136 km (0.066 R)
• M14: 15,927,386 km (0.078 R)
• M15: 16,990,279 km (0.117 R)
• M16: 17,335,551 km (0.112 R)
• M17: 17,803,194 km (0.089 R)
• M18: 19,949,026 km (0.082 R)
• M19: 21,650,851 km (0.107 R)
• M20: 22,745,010 km (0.085 R)
• M21: 23,164,632 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.6

Radius: 9.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.08 AU - 5.58 AU

Year: 3978 Days

Day: 5.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,873,647 km

• M1: 132,693 km (0.11 R)
• M2: 455,825 km (0.096 R)
• M3: 825,631 km (0.12 R)
• M4: 1,371,214 km (0.077 R)
• M5: 1,843,046 km (0.077 R)
• M6: 2,171,114 km (0.115 R)
• M7: 3,064,512 km (0.107 R)
• M8: 3,837,933 km (0.066 R)
• M9: 4,164,954 km (0.111 R)
• M10: 5,309,378 km (0.076 R)
• M11: 5,821,601 km (0.12 R)
• M12: 6,366,586 km (0.05 R)
• M13: 11,809,106 km (0.052 R)
• M14: 12,772,666 km (0.091 R)
• M15: 13,552,669 km (0.053 R)
• M16: 14,559,463 km (0.098 R)
• M17: 16,992,373 km (0.114 R)
• M18: 19,325,951 km (0.119 R)
• M19: 21,100,181 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.6

Radius: 10.1

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.64 AU - 7.08 AU

Year: 6011 Days

Day: 10.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,873,647 km

• M1: 125,662 km (0.117 R)
• M2: 694,134 km (0.081 R)
• M3: 1,044,044 km (0.085 R)
• M4: 1,393,355 km (0.067 R)
• M5: 1,821,504 km (0.106 R)
• M6: 2,319,665 km (0.118 R)
• M7: 2,789,701 km (0.114 R)
• M8: 3,214,858 km (0.1 R)
• M9: 3,897,473 km (0.11 R)
• M10: 4,510,675 km (0.106 R)
• M11: 5,157,686 km (0.089 R)
• M12: 5,801,256 km (0.058 R)
• M13: 6,919,949 km (0.076 R)
• M14: 8,136,479 km (0.082 R)
• M15: 10,647,778 km (0.057 R)
• M16: 11,285,813 km (0.101 R)
• M17: 11,639,911 km (0.056 R)
• M18: 12,105,908 km (0.112 R)
• M19: 14,153,903 km (0.093 R)
• M20: 18,294,174 km (0.065 R)
• M21: 19,787,759 km (0.073 R)
• M22: 20,377,474 km (0.105 R)
• M23: 29,339,434 km (0.036 R)
• M24: 30,592,615 km (0.073 R)
• M25: 31,780,871 km (0.067 R)
• M26: 33,724,596 km (0.039 R)
• M27: 35,746,411 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 257.3

Radius: 5.1

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 12.8 AU - 17.04 AU

Year: 21596 Days

Day: 23.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,873,647 km

• M1: 69,413 km (0.097 R)
• M2: 831,764 km (0.105 R)
• M3: 3,255,698 km (0.091 R)
• M4: 3,926,196 km (0.108 R)
• M5: 6,771,398 km (0.098 R)
• M6: 9,666,566 km (0.07 R)
• M7: 10,145,728 km (0.088 R)
• M8: 12,038,889 km (0.1 R)
• M9: 16,283,429 km (0.052 R)
• M10: 21,339,239 km (0.036 R)
• M11: 24,219,895 km (0.045 R)
• M12: 27,878,162 km (0.065 R)
• M13: 29,284,980 km (0.098 R)
• M14: 31,424,978 km (0.092 R)
• M15: 37,033,402 km (0.043 R)
• M16: 44,863,055 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 201.6

Radius: 5

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 18.65 AU - 19.37 AU

Year: 31060 Days

Day: 19.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,873,647 km

• M1: 62,233 km (0.114 R)
• M2: 260,450 km (0.089 R)
• M3: 876,494 km (0.063 R)
• M4: 2,082,402 km (0.074 R)
• M5: 2,846,698 km (0.084 R)
• M6: 3,753,859 km (0.097 R)
• M7: 6,037,770 km (0.092 R)
• M8: 6,880,305 km (0.093 R)
• M9: 8,089,056 km (0.033 R)
• M10: 12,163,354 km (0.05 R)
• M11: 19,469,265 km (0.115 R)
• M12: 22,338,852 km (0.1 R)
• M13: 22,533,179 km (0.094 R)
• M14: 22,826,690 km (0.105 R)
• M15: 28,441,846 km (0.119 R)
• M16: 29,130,296 km (0.105 R)
• M17: 34,651,654 km (0.109 R)
• M18: 36,501,880 km (0.09 R)
• M19: 37,314,646 km (0.102 R)
• M20: 40,398,007 km (0.12 R)
• M21: 60,433,201 km (0.115 R)
• M22: 64,277,418 km (0.089 R)
• M23: 66,259,141 km (0.113 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 20,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit