🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.93 AU - 1.37 AU

Year: 455 Days

Day: 35.9 Hours

Environment

Temp: 14 °C

Axial Tilt: 31.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.27 AU - 1.35 AU

Year: 553 Days

Day: 22 Hours

Environment

Temp: 5 °C

Axial Tilt: 14.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.37 AU - 1.81 AU

Year: 740 Days

Day: 40.9 Hours

Environment

Temp: -53 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,815,368 km

• M1: 27,376 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.3

Radius: 8.4

Gravity: 9.56 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.31 AU - 5.91 AU

Year: 4903 Days

Day: 13.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 91,815,368 km

• M1: 104,419 km (0.032 R)
• M2: 445,502 km (0.109 R)
• M3: 746,045 km (0.102 R)
• M4: 1,448,556 km (0.053 R)
• M5: 1,870,422 km (0.085 R)
• M6: 2,725,374 km (0.086 R)
• M7: 3,074,685 km (0.082 R)
• M8: 3,753,111 km (0.116 R)
• M9: 4,704,703 km (0.079 R)
• M10: 5,604,235 km (0.086 R)
• M11: 6,549,544 km (0.087 R)
• M12: 7,111,135 km (0.119 R)
• M13: 7,668,536 km (0.111 R)
• M14: 9,809,132 km (0.056 R)
• M15: 10,193,898 km (0.096 R)
• M16: 11,362,108 km (0.116 R)
• M17: 11,738,945 km (0.097 R)
• M18: 13,021,447 km (0.116 R)
• M19: 13,696,583 km (0.029 R)
• M20: 14,394,906 km (0.057 R)
• M21: 15,920,654 km (0.083 R)
• M22: 16,333,245 km (0.056 R)
• M23: 16,753,017 km (0.118 R)
• M24: 19,290,645 km (0.105 R)
• M25: 23,033,285 km (0.113 R)
• M26: 23,561,216 km (0.067 R)
• M27: 24,798,241 km (0.117 R)
• M28: 25,834,804 km (0.071 R)
• M29: 27,569,840 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.6

Radius: 14.1

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.67 AU - 10.09 AU

Year: 11458 Days

Day: 11.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 91,815,368 km

• M1: 175,329 km (0.096 R)
• M2: 937,530 km (0.041 R)
• M3: 1,410,558 km (0.053 R)
• M4: 2,324,302 km (0.118 R)
• M5: 2,872,279 km (0.087 R)
• M6: 3,857,531 km (0.086 R)
• M7: 4,691,539 km (0.046 R)
• M8: 5,575,662 km (0.085 R)
• M9: 7,186,383 km (0.062 R)
• M10: 8,056,593 km (0.06 R)
• M11: 9,468,498 km (0.101 R)
• M12: 10,107,580 km (0.096 R)
• M13: 10,827,744 km (0.118 R)
• M14: 11,526,965 km (0.105 R)
• M15: 12,370,846 km (0.081 R)
• M16: 13,806,687 km (0.088 R)
• M17: 14,564,998 km (0.09 R)
• M18: 15,754,301 km (0.106 R)
• M19: 19,087,641 km (0.104 R)
• M20: 19,633,075 km (0.102 R)
• M21: 23,040,017 km (0.041 R)
• M22: 24,745,283 km (0.119 R)
• M23: 25,770,178 km (0.114 R)
• M24: 29,736,915 km (0.057 R)
• M25: 32,193,312 km (0.071 R)
• M26: 35,479,529 km (0.075 R)
• M27: 38,858,795 km (0.112 R)
• M28: 40,498,388 km (0.069 R)
• M29: 41,530,164 km (0.072 R)
• M30: 43,645,927 km (0.098 R)
• M31: 45,417,315 km (0.036 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.6

Radius: 6.1

Gravity: 18.61 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 15.41 AU - 19.03 AU

Year: 26365 Days

Day: 23.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 91,815,368 km

• M1: 76,594 km (0.115 R)
• M2: 379,380 km (0.12 R)
• M3: 638,035 km (0.105 R)
• M4: 1,783,057 km (0.05 R)
• M5: 2,177,247 km (0.1 R)
• M6: 5,859,599 km (0.085 R)
• M7: 7,118,315 km (0.109 R)
• M8: 9,969,950 km (0.055 R)
• M9: 10,477,236 km (0.053 R)
• M10: 10,935,156 km (0.101 R)
• M11: 12,679,766 km (0.118 R)
• M12: 12,975,222 km (0.093 R)
• M13: 16,976,067 km (0.114 R)
• M14: 17,425,609 km (0.081 R)
• M15: 17,790,777 km (0.089 R)
• M16: 19,792,696 km (0.039 R)
• M17: 21,001,596 km (0.114 R)
• M18: 23,015,034 km (0.108 R)
• M19: 28,541,628 km (0.098 R)
• M20: 29,821,737 km (0.116 R)
• M21: 31,948,869 km (0.087 R)
• M22: 35,180,632 km (0.039 R)
• M23: 37,857,088 km (0.104 R)
• M24: 38,778,461 km (0.034 R)
• M25: 50,104,964 km (0.097 R)
• M26: 55,034,962 km (0.111 R)
• M27: 58,631,145 km (0.12 R)
• M28: 61,745,175 km (0.082 R)
• M29: 64,097,601 km (0.084 R)
• M30: 69,894,070 km (0.08 R)
• M31: 72,448,154 km (0.078 R)
• M32: 74,344,307 km (0.081 R)
• M33: 76,273,222 km (0.062 R)
• M34: 81,749,402 km (0.112 R)
• M35: 82,259,830 km (0.079 R)
• M36: 91,266,071 km (0.098 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 171 - 20,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit