🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.52 AU - 0.7 AU

Year: 204 Days

Day: 42.4 Hours

Environment

Temp: 10 °C

Axial Tilt: 1.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.62 AU - 0.82 AU

Year: 261 Days

Day: 30.1 Hours

Environment

Temp: 14 °C

Axial Tilt: 3.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.93 AU - 1.23 AU

Year: 480 Days

Day: 15.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.1 AU - 1.44 AU

Year: 612 Days

Day: 36.7 Hours

Environment

Temp: -71 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 87,405,305 km

• M1: 44,879 km (0.068 R)
• M2: 144,661 km (0.086 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.4 AU - 2.1 AU

Year: 990 Days

Day: 34.6 Hours

Environment

Temp: -99 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.66 AU - 2 AU

Year: 1058 Days

Day: 22.3 Hours

Environment

Temp: -113 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.68 AU - 2.06 AU

Year: 1093 Days

Day: 34.3 Hours

Environment

Temp: -101 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.49 AU - 2.65 AU

Year: 1761 Days

Day: 38.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 22 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,405,305 km

• M1: 25,581 km (0.084 R)

Asteroid Belt

Center: 4.4 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.8

Radius: 11.6

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 5.88 AU - 6.58 AU

Year: 6648 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,405,305 km

• M1: 145,858 km (0.08 R)
• M2: 588,368 km (0.082 R)
• M3: 950,545 km (0.111 R)
• M4: 2,236,488 km (0.036 R)
• M5: 6,176,298 km (0.067 R)
• M6: 9,433,343 km (0.099 R)
• M7: 10,796,030 km (0.036 R)
• M8: 13,211,437 km (0.077 R)
• M9: 15,028,602 km (0.106 R)
• M10: 15,788,260 km (0.04 R)
• M11: 16,820,037 km (0.1 R)
• M12: 18,550,435 km (0.07 R)
• M13: 19,699,048 km (0.105 R)
• M14: 22,739,624 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 805.6

Radius: 4.2

Gravity: 45.67 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 10.64 AU - 17.62 AU

Year: 22706 Days

Day: 21.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 98.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 87,405,305 km

• M1: 53,706 km (0.066 R)
• M2: 253,120 km (0.093 R)
• M3: 1,352,664 km (0.095 R)
• M4: 2,160,792 km (0.094 R)
• M5: 2,654,614 km (0.113 R)
• M6: 3,078,724 km (0.055 R)
• M7: 3,960,304 km (0.119 R)
• M8: 4,299,892 km (0.102 R)
• M9: 4,476,866 km (0.095 R)
• M10: 4,845,475 km (0.046 R)
• M11: 5,273,923 km (0.071 R)
• M12: 5,684,869 km (0.118 R)
• M13: 6,161,188 km (0.108 R)
• M14: 7,544,221 km (0.054 R)
• M15: 8,334,995 km (0.061 R)
• M16: 8,722,304 km (0.114 R)
• M17: 10,079,605 km (0.08 R)
• M18: 11,102,855 km (0.12 R)
• M19: 11,369,139 km (0.104 R)
• M20: 11,776,494 km (0.115 R)
• M21: 18,360,147 km (0.076 R)
• M22: 25,051,959 km (0.086 R)
• M23: 27,277,227 km (0.066 R)
• M24: 28,623,907 km (0.102 R)
• M25: 37,497,155 km (0.102 R)
• M26: 37,795,902 km (0.116 R)
• M27: 41,346,607 km (0.109 R)
• M28: 41,985,989 km (0.114 R)
• M29: 43,778,171 km (0.084 R)
• M30: 45,282,079 km (0.111 R)
• M31: 46,132,243 km (0.114 R)
• M32: 57,376,319 km (0.088 R)
• M33: 61,841,217 km (0.108 R)
• M34: 63,097,988 km (0.092 R)
• M35: 64,371,515 km (0.079 R)
• M36: 70,997,504 km (0.101 R)
• M37: 76,135,293 km (0.115 R)
• M38: 83,533,057 km (0.087 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 14,985 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit