🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.73 AU - 0.99 AU

Year: 291 Days

Day: 23.1 Hours

Environment

Temp: 110 °C

Axial Tilt: 33.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,159,874 km

• M1: 37,549 km (0.089 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.02 AU - 1.24 AU

Year: 439 Days

Day: 29.5 Hours

Environment

Temp: 8 °C

Axial Tilt: 1.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.14 AU - 1.38 AU

Year: 517 Days

Day: 44.4 Hours

Environment

Temp: 14 °C

Axial Tilt: 76 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 68,159,874 km

• M1: 18,251 km (0.096 R)
• M2: 239,955 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.95 AU - 2.09 AU

Year: 1049 Days

Day: 14 Hours

Environment

Temp: -65 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.97 AU - 3.79 AU

Year: 2270 Days

Day: 36.2 Hours

Environment

Temp: -103 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.12 AU - 4.22 AU

Year: 3110 Days

Day: 44.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.6

Radius: 11.5

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 5.86 AU - 7.92 AU

Year: 6606 Days

Day: 11.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,159,874 km

• M1: 143,016 km (0.115 R)
• M2: 533,316 km (0.111 R)
• M3: 1,223,860 km (0.027 R)
• M4: 1,614,610 km (0.106 R)
• M5: 1,973,346 km (0.11 R)
• M6: 2,418,848 km (0.092 R)
• M7: 2,931,370 km (0.099 R)
• M8: 4,152,089 km (0.119 R)
• M9: 5,421,128 km (0.089 R)
• M10: 7,639,814 km (0.084 R)
• M11: 8,910,348 km (0.068 R)
• M12: 9,321,892 km (0.117 R)
• M13: 12,619,777 km (0.071 R)
• M14: 13,511,979 km (0.11 R)
• M15: 14,166,619 km (0.107 R)
• M16: 17,187,748 km (0.119 R)
• M17: 18,152,355 km (0.049 R)
• M18: 19,700,992 km (0.088 R)
• M19: 20,189,280 km (0.096 R)
• M20: 22,677,092 km (0.097 R)
• M21: 30,607,575 km (0.03 R)
• M22: 31,263,113 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.3

Radius: 13.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.78 AU - 8.38 AU

Year: 7622 Days

Day: 5.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,159,874 km

• M1: 165,754 km (0.12 R)
• M2: 688,599 km (0.117 R)
• M3: 1,106,276 km (0.082 R)
• M4: 1,608,626 km (0.109 R)
• M5: 2,281,068 km (0.113 R)
• M6: 3,914,228 km (0.077 R)
• M7: 5,140,183 km (0.089 R)
• M8: 6,225,665 km (0.047 R)
• M9: 7,005,967 km (0.041 R)
• M10: 7,652,829 km (0.031 R)
• M11: 8,174,028 km (0.045 R)
• M12: 8,633,592 km (0.075 R)
• M13: 9,975,485 km (0.051 R)
• M14: 10,500,873 km (0.065 R)
• M15: 11,247,217 km (0.104 R)
• M16: 12,189,085 km (0.076 R)
• M17: 13,641,531 km (0.076 R)
• M18: 14,773,987 km (0.111 R)
• M19: 18,264,105 km (0.11 R)
• M20: 23,335,473 km (0.106 R)
• M21: 23,923,093 km (0.111 R)
• M22: 24,779,690 km (0.071 R)
• M23: 27,939,497 km (0.1 R)
• M24: 28,889,443 km (0.116 R)
• M25: 35,929,818 km (0.103 R)
• M26: 38,899,186 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.3

Radius: 10.3

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 7.59 AU - 11.39 AU

Year: 10678 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,159,874 km

• M1: 128,355 km (0.106 R)
• M2: 573,857 km (0.106 R)
• M3: 1,129,165 km (0.109 R)
• M4: 1,590,076 km (0.084 R)
• M5: 2,392,668 km (0.093 R)
• M6: 3,494,457 km (0.07 R)
• M7: 3,823,273 km (0.059 R)
• M8: 4,200,559 km (0.087 R)
• M9: 5,619,644 km (0.065 R)
• M10: 6,145,032 km (0.112 R)
• M11: 7,623,807 km (0.107 R)
• M12: 7,963,244 km (0.075 R)
• M13: 10,946,824 km (0.104 R)
• M14: 11,936,414 km (0.111 R)
• M15: 13,165,211 km (0.053 R)
• M16: 15,196,750 km (0.054 R)
• M17: 15,803,968 km (0.107 R)
• M18: 17,283,640 km (0.098 R)
• M19: 18,700,183 km (0.102 R)
• M20: 19,475,997 km (0.064 R)
• M21: 22,361,441 km (0.116 R)
• M22: 26,474,784 km (0.12 R)
• M23: 26,960,827 km (0.086 R)
• M24: 27,751,003 km (0.104 R)
• M25: 31,825,601 km (0.114 R)
• M26: 36,641,455 km (0.073 R)
• M27: 37,123,908 km (0.11 R)
• M28: 37,488,628 km (0.077 R)
• M29: 39,981,228 km (0.107 R)
• M30: 44,605,896 km (0.081 R)
• M31: 47,831,825 km (0.11 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.3

Radius: 13.4

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 11.57 AU - 11.61 AU

Year: 14412 Days

Day: 10.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,159,874 km

• M1: 166,652 km (0.107 R)
• M2: 663,018 km (0.1 R)
• M3: 1,403,527 km (0.048 R)
• M4: 2,076,867 km (0.087 R)
• M5: 3,338,875 km (0.111 R)
• M6: 4,168,993 km (0.084 R)
• M7: 5,724,811 km (0.082 R)
• M8: 7,316,383 km (0.103 R)
• M9: 7,780,585 km (0.089 R)
• M10: 8,614,893 km (0.058 R)
• M11: 9,080,292 km (0.093 R)
• M12: 9,508,141 km (0.053 R)
• M13: 11,540,877 km (0.087 R)
• M14: 12,824,876 km (0.082 R)
• M15: 16,607,757 km (0.08 R)
• M16: 17,087,368 km (0.085 R)
• M17: 19,361,106 km (0.041 R)
• M18: 21,170,791 km (0.111 R)
• M19: 22,020,956 km (0.085 R)
• M20: 22,795,574 km (0.111 R)
• M21: 25,650,799 km (0.084 R)
• M22: 26,400,434 km (0.09 R)
• M23: 29,778,952 km (0.105 R)
• M24: 33,183,351 km (0.098 R)
• M25: 35,636,008 km (0.036 R)
• M26: 39,893,563 km (0.091 R)
• M27: 42,218,464 km (0.116 R)
• M28: 44,020,370 km (0.076 R)
• M29: 63,575,355 km (0.069 R)
• M30: 65,940,647 km (0.057 R)
• M31: 66,943,252 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 11,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit