🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.56 AU - 0.84 AU

Year: 249 Days

Day: 23.6 Hours

Environment

Temp: 22 °C

Axial Tilt: 156.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 53,074,997 km

• M1: 91,554 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.61 AU - 0.89 AU

Year: 276 Days

Day: 29.4 Hours

Environment

Temp: 5 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.03 AU - 1.45 AU

Year: 586 Days

Day: 12.7 Hours

Environment

Temp: -62 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.24 AU - 1.5 AU

Year: 681 Days

Day: 45.1 Hours

Environment

Temp: -78 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.26 AU - 2.04 AU

Year: 900 Days

Day: 40.8 Hours

Environment

Temp: -98 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.14 AU - 2.16 AU

Year: 1339 Days

Day: 29.4 Hours

Environment

Temp: -116 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.6

Radius: 11.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.08 AU - 7.92 AU

Year: 7864 Days

Day: 11.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,074,997 km

• M1: 151,543 km (0.095 R)
• M2: 620,831 km (0.057 R)
• M3: 1,390,961 km (0.061 R)
• M4: 1,983,069 km (0.093 R)
• M5: 2,631,576 km (0.055 R)
• M6: 3,015,743 km (0.051 R)
• M7: 3,395,722 km (0.076 R)
• M8: 4,785,785 km (0.09 R)
• M9: 5,165,315 km (0.103 R)
• M10: 7,269,110 km (0.084 R)
• M11: 7,626,200 km (0.048 R)
• M12: 9,338,797 km (0.084 R)
• M13: 12,268,372 km (0.111 R)
• M14: 13,456,478 km (0.119 R)
• M15: 15,350,836 km (0.117 R)
• M16: 18,915,753 km (0.091 R)
• M17: 19,456,699 km (0.106 R)
• M18: 20,217,404 km (0.109 R)
• M19: 22,921,984 km (0.115 R)
• M20: 24,241,886 km (0.046 R)
• M21: 25,612,053 km (0.07 R)
• M22: 27,980,187 km (0.074 R)
• M23: 29,127,753 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.6

Radius: 4.6

Gravity: 34.48 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 8.57 AU - 11.53 AU

Year: 13528 Days

Day: 16.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,074,997 km

• M1: 57,296 km (0.085 R)
• M2: 255,064 km (0.073 R)
• M3: 480,658 km (0.074 R)
• M4: 1,060,799 km (0.094 R)
• M5: 1,531,284 km (0.043 R)
• M6: 1,688,511 km (0.115 R)
• M7: 2,167,972 km (0.053 R)
• M8: 2,346,592 km (0.096 R)
• M9: 2,824,857 km (0.114 R)
• M10: 3,087,102 km (0.109 R)
• M11: 3,715,862 km (0.111 R)
• M12: 4,879,883 km (0.091 R)
• M13: 7,400,607 km (0.12 R)
• M14: 7,806,914 km (0.112 R)
• M15: 9,740,467 km (0.106 R)
• M16: 11,788,911 km (0.091 R)
• M17: 14,244,709 km (0.095 R)
• M18: 15,301,169 km (0.072 R)
• M19: 17,648,510 km (0.12 R)
• M20: 19,199,840 km (0.08 R)
• M21: 20,312,100 km (0.057 R)
• M22: 21,017,603 km (0.038 R)
• M23: 36,534,194 km (0.101 R)
• M24: 41,100,070 km (0.115 R)
• M25: 42,654,990 km (0.075 R)
• M26: 43,374,407 km (0.118 R)
• M27: 46,636,837 km (0.072 R)
• M28: 48,327,592 km (0.093 R)
• M29: 49,582,718 km (0.102 R)
• M30: 54,482,797 km (0.107 R)
• M31: 57,922,800 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.9

Radius: 5.1

Gravity: 30.14 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.68 AU - 11.28 AU

Year: 14405 Days

Day: 16.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,074,997 km

• M1: 88,263 km (0.061 R)
• M2: 360,980 km (0.081 R)
• M3: 630,106 km (0.076 R)
• M4: 1,526,796 km (0.108 R)
• M5: 2,216,292 km (0.083 R)
• M6: 2,619,010 km (0.09 R)
• M7: 5,394,948 km (0.058 R)
• M8: 6,041,660 km (0.068 R)
• M9: 6,528,301 km (0.082 R)
• M10: 7,217,349 km (0.119 R)
• M11: 9,574,563 km (0.118 R)
• M12: 9,737,026 km (0.077 R)
• M13: 10,179,088 km (0.05 R)
• M14: 16,037,789 km (0.1 R)
• M15: 19,798,680 km (0.077 R)
• M16: 19,974,457 km (0.076 R)
• M17: 26,267,591 km (0.095 R)
• M18: 33,639,026 km (0.118 R)
• M19: 38,335,801 km (0.072 R)
• M20: 41,411,234 km (0.112 R)
• M21: 62,616,882 km (0.114 R)
• M22: 63,757,565 km (0.032 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114

Radius: 3.1

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 12.5 AU - 20.58 AU

Year: 28561 Days

Day: 20.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,074,997 km

• M1: 38,746 km (0.094 R)
• M2: 828,174 km (0.079 R)
• M3: 1,558,211 km (0.112 R)
• M4: 3,561,776 km (0.111 R)
• M5: 8,482,947 km (0.116 R)
• M6: 11,154,167 km (0.067 R)
• M7: 11,266,814 km (0.119 R)
• M8: 12,435,622 km (0.113 R)
• M9: 17,537,358 km (0.097 R)
• M10: 21,097,489 km (0.098 R)
• M11: 23,412,366 km (0.069 R)
• M12: 23,597,119 km (0.079 R)
• M13: 25,694,182 km (0.055 R)
• M14: 25,989,488 km (0.112 R)
• M15: 36,552,295 km (0.118 R)
• M16: 42,836,602 km (0.117 R)
• M17: 48,144,634 km (0.045 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 13,698 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit