🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.77 AU - 1.09 AU

Year: 343 Days

Day: 34.2 Hours

Environment

Temp: 30 °C

Axial Tilt: 6.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.84 AU - 2.58 AU

Year: 1258 Days

Day: 45.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.6 AU - 3.68 AU

Year: 2130 Days

Day: 40.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 114,217,618 km

• M1: 353,500 km (0.085 R)
• M2: 2,107,385 km (0.108 R)

Asteroid Belt

Center: 3.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.53 AU - 4.59 AU

Year: 3132 Days

Day: 38.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 114,217,618 km

• M1: 823,387 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.2

Radius: 14.8

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.41 AU - 5.59 AU

Year: 3655 Days

Day: 11.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 114,217,618 km

• M1: 184,005 km (0.117 R)
• M2: 783,145 km (0.078 R)
• M3: 1,562,699 km (0.078 R)
• M4: 2,300,815 km (0.118 R)
• M5: 4,090,903 km (0.081 R)
• M6: 5,236,823 km (0.107 R)
• M7: 6,192,604 km (0.087 R)
• M8: 8,267,975 km (0.085 R)
• M9: 9,286,886 km (0.107 R)
• M10: 10,011,538 km (0.086 R)
• M11: 11,989,222 km (0.117 R)
• M12: 14,163,627 km (0.101 R)
• M13: 16,589,805 km (0.115 R)
• M14: 20,529,615 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.3

Radius: 8.3

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.48 AU - 8.04 AU

Year: 6730 Days

Day: 8.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 170.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 114,217,618 km

• M1: 113,096 km (0.067 R)
• M2: 945,010 km (0.113 R)
• M3: 1,441,675 km (0.083 R)
• M4: 1,809,835 km (0.065 R)
• M5: 2,268,353 km (0.112 R)
• M6: 3,251,360 km (0.076 R)
• M7: 3,747,726 km (0.055 R)
• M8: 4,843,381 km (0.118 R)
• M9: 6,366,287 km (0.098 R)
• M10: 8,495,065 km (0.062 R)
• M11: 8,993,525 km (0.12 R)
• M12: 9,586,830 km (0.111 R)
• M13: 14,443,974 km (0.084 R)
• M14: 16,699,012 km (0.08 R)
• M15: 20,919,467 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.7

Radius: 11

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 7.52 AU - 9.18 AU

Year: 9238 Days

Day: 8.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 135.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 114,217,618 km

• M1: 136,882 km (0.12 R)
• M2: 1,463,666 km (0.096 R)
• M3: 3,545,320 km (0.099 R)
• M4: 5,439,678 km (0.075 R)
• M5: 8,874,594 km (0.091 R)
• M6: 11,022,970 km (0.119 R)
• M7: 13,230,136 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.3

Radius: 13.2

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.94 AU - 10.56 AU

Year: 10772 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 114,217,618 km

• M1: 164,258 km (0.057 R)
• M2: 729,888 km (0.076 R)
• M3: 1,164,619 km (0.085 R)
• M4: 1,610,720 km (0.116 R)
• M5: 2,266,109 km (0.026 R)
• M6: 3,190,025 km (0.116 R)
• M7: 7,279,432 km (0.109 R)
• M8: 8,400,968 km (0.092 R)
• M9: 10,376,408 km (0.093 R)
• M10: 11,270,404 km (0.118 R)
• M11: 11,974,113 km (0.114 R)
• M12: 17,131,499 km (0.098 R)
• M13: 18,701,529 km (0.086 R)
• M14: 19,604,951 km (0.096 R)
• M15: 22,307,885 km (0.026 R)
• M16: 24,661,807 km (0.108 R)
• M17: 31,206,116 km (0.092 R)
• M18: 32,947,435 km (0.09 R)
• M19: 37,389,744 km (0.098 R)
• M20: 40,022,666 km (0.071 R)
• M21: 40,972,762 km (0.1 R)
• M22: 48,507,110 km (0.065 R)
• M23: 54,895,238 km (0.045 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948.4

Radius: 3.5

Gravity: 77.42 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 16.83 AU - 20.81 AU

Year: 31261 Days

Day: 23.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 114,217,618 km

• M1: 43,533 km (0.078 R)
• M2: 199,713 km (0.12 R)
• M3: 391,647 km (0.097 R)
• M4: 645,066 km (0.116 R)
• M5: 1,116,000 km (0.108 R)
• M6: 1,506,451 km (0.067 R)
• M7: 2,742,578 km (0.066 R)
• M8: 3,891,041 km (0.118 R)
• M9: 4,772,770 km (0.061 R)
• M10: 5,687,262 km (0.089 R)
• M11: 8,562,982 km (0.079 R)
• M12: 9,121,132 km (0.073 R)
• M13: 9,902,631 km (0.12 R)
• M14: 10,940,691 km (0.057 R)
• M15: 11,084,454 km (0.086 R)
• M16: 11,229,415 km (0.097 R)
• M17: 14,401,039 km (0.082 R)
• M18: 14,573,675 km (0.07 R)
• M19: 15,099,960 km (0.03 R)
• M20: 20,855,738 km (0.112 R)
• M21: 22,320,302 km (0.113 R)
• M22: 22,435,641 km (0.062 R)
• M23: 25,076,941 km (0.074 R)
• M24: 27,386,284 km (0.11 R)
• M25: 32,422,496 km (0.11 R)
• M26: 35,157,444 km (0.072 R)
• M27: 38,206,847 km (0.063 R)
• M28: 52,371,073 km (0.046 R)
• M29: 66,752,814 km (0.044 R)
• M30: 67,473,576 km (0.074 R)
• M31: 71,656,034 km (0.114 R)
• M32: 76,007,985 km (0.093 R)
• M33: 80,804,392 km (0.066 R)
• M34: 95,785,572 km (0.12 R)
• M35: 96,396,081 km (0.066 R)
• M36: 101,690,050 km (0.079 R)
• M37: 103,925,192 km (0.039 R)
• M38: 106,519,369 km (0.068 R)
• M39: 106,846,689 km (0.045 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 10,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit