🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.76 AU - 1 AU

Year: 314 Days

Day: 46.4 Hours

Environment

Temp: 41 °C

Axial Tilt: 13.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.23 AU - 1.73 AU

Year: 686 Days

Day: 18 Hours

Environment

Temp: -52 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,415,711 km

• M1: 46,076 km (0.086 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.08 AU - 2.2 AU

Year: 1192 Days

Day: 17.4 Hours

Environment

Temp: -92 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,415,711 km

• M1: 680,072 km (0.108 R)
• M2: 1,148,014 km (0.119 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.74 AU - 2.7 AU

Year: 1260 Days

Day: 46.3 Hours

Environment

Temp: -92 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,415,711 km

• M1: 35,455 km (0.058 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.5 AU - 2.94 AU

Year: 1708 Days

Day: 22.7 Hours

Environment

Temp: -96 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,415,711 km

• M1: 2,177,397 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.6

Radius: 10.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 6.54 AU - 9.06 AU

Year: 8295 Days

Day: 13.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,415,711 km

• M1: 135,536 km (0.088 R)
• M2: 1,283,999 km (0.118 R)
• M3: 1,758,972 km (0.103 R)
• M4: 2,482,726 km (0.098 R)
• M5: 3,375,975 km (0.095 R)
• M6: 5,014,521 km (0.036 R)
• M7: 5,953,247 km (0.118 R)
• M8: 6,523,215 km (0.05 R)
• M9: 6,943,585 km (0.116 R)
• M10: 7,286,463 km (0.093 R)
• M11: 7,872,139 km (0.112 R)
• M12: 9,027,334 km (0.116 R)
• M13: 9,896,946 km (0.061 R)
• M14: 10,739,033 km (0.071 R)
• M15: 12,068,359 km (0.111 R)
• M16: 13,600,840 km (0.106 R)
• M17: 14,845,195 km (0.092 R)
• M18: 15,894,325 km (0.03 R)
• M19: 16,935,975 km (0.116 R)
• M20: 17,388,060 km (0.083 R)
• M21: 19,399,553 km (0.076 R)
• M22: 22,837,611 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.7

Radius: 3.5

Gravity: 23.98 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 10.45 AU - 17.31 AU

Year: 19692 Days

Day: 24.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,415,711 km

• M1: 43,533 km (0.074 R)
• M2: 189,391 km (0.092 R)
• M3: 584,180 km (0.081 R)
• M4: 1,236,426 km (0.119 R)
• M5: 1,398,890 km (0.095 R)
• M6: 1,902,735 km (0.119 R)
• M7: 2,064,151 km (0.09 R)
• M8: 2,215,096 km (0.109 R)
• M9: 2,646,985 km (0.119 R)
• M10: 3,383,455 km (0.108 R)
• M11: 6,047,943 km (0.072 R)
• M12: 6,279,371 km (0.114 R)
• M13: 7,748,721 km (0.037 R)
• M14: 9,483,757 km (0.118 R)
• M15: 9,901,584 km (0.102 R)
• M16: 14,917,600 km (0.084 R)
• M17: 20,095,183 km (0.104 R)
• M18: 21,221,804 km (0.066 R)
• M19: 22,116,549 km (0.111 R)
• M20: 28,018,784 km (0.076 R)
• M21: 32,253,002 km (0.069 R)
• M22: 33,434,077 km (0.101 R)
• M23: 39,107,277 km (0.069 R)
• M24: 45,096,577 km (0.111 R)
• M25: 45,830,355 km (0.112 R)
• M26: 56,444,174 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.9

Radius: 6.9

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 15.2 AU - 16.34 AU

Year: 23848 Days

Day: 15 Hours

Environment

Temp: -191 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,415,711 km

• M1: 85,869 km (0.109 R)
• M2: 811,718 km (0.113 R)
• M3: 1,374,206 km (0.063 R)
• M4: 2,353,474 km (0.079 R)
• M5: 4,900,527 km (0.113 R)
• M6: 6,881,352 km (0.114 R)
• M7: 10,221,574 km (0.091 R)
• M8: 10,623,094 km (0.061 R)
• M9: 10,916,306 km (0.063 R)
• M10: 19,596,124 km (0.117 R)
• M11: 26,287,936 km (0.065 R)
• M12: 29,045,773 km (0.114 R)
• M13: 32,973,615 km (0.083 R)
• M14: 34,999,469 km (0.045 R)
• M15: 42,890,607 km (0.117 R)
• M16: 54,450,483 km (0.118 R)
• M17: 65,343,153 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.3

Radius: 7.5

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 16.33 AU - 20.03 AU

Year: 29518 Days

Day: 15 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,415,711 km

• M1: 93,798 km (0.085 R)
• M2: 574,007 km (0.079 R)
• M3: 1,026,541 km (0.053 R)
• M4: 2,058,616 km (0.077 R)
• M5: 2,658,653 km (0.085 R)
• M6: 3,047,458 km (0.111 R)
• M7: 16,784,582 km (0.116 R)
• M8: 23,251,099 km (0.091 R)
• M9: 27,031,886 km (0.112 R)
• M10: 28,198,301 km (0.048 R)
• M11: 32,723,337 km (0.026 R)
• M12: 34,537,960 km (0.107 R)
• M13: 42,894,347 km (0.069 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: 246 - 19,859 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit