🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.42 AU - 0.68 AU

Year: 150 Days

Day: 39.8 Hours

Environment

Temp: 222 °C

Axial Tilt: 2.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,409,400 km

• M1: 36,203 km (0.032 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.49 AU - 0.65 AU

Year: 159 Days

Day: 35.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 36.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.65 AU - 0.67 AU

Year: 198 Days

Day: 39.1 Hours

Environment

Temp: 129 °C

Axial Tilt: 76.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.63 AU - 0.73 AU

Year: 207 Days

Day: 34.8 Hours

Environment

Temp: 194 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.73 AU - 1.01 AU

Year: 299 Days

Day: 36.7 Hours

Environment

Temp: 139 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 6 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.44 AU - 1.8 AU

Year: 761 Days

Day: 23.8 Hours

Environment

Temp: -53 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,409,400 km

• M1: 1,521,710 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.3

Radius: 11.3

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 11.07 AU - 12.33 AU

Year: 14766 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,409,400 km

• M1: 156,180 km (0.097 R)
• M2: 797,656 km (0.084 R)
• M3: 1,518,568 km (0.112 R)
• M4: 2,118,904 km (0.11 R)
• M5: 2,752,002 km (0.075 R)
• M6: 3,460,797 km (0.108 R)
• M7: 4,207,141 km (0.057 R)
• M8: 4,849,664 km (0.109 R)
• M9: 6,365,838 km (0.105 R)
• M10: 7,252,206 km (0.101 R)
• M11: 7,887,548 km (0.103 R)
• M12: 14,626,633 km (0.072 R)
• M13: 15,967,927 km (0.101 R)
• M14: 17,810,823 km (0.041 R)
• M15: 21,671,795 km (0.079 R)
• M16: 36,768,165 km (0.098 R)
• M17: 40,329,641 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 810

Radius: 4.2

Gravity: 45.92 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 14.59 AU - 19.35 AU

Year: 25793 Days

Day: 22.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 60,409,400 km

• M1: 52,210 km (0.1 R)
• M2: 220,956 km (0.099 R)
• M3: 655,538 km (0.039 R)
• M4: 1,369,419 km (0.109 R)
• M5: 1,688,511 km (0.109 R)
• M6: 2,650,575 km (0.082 R)
• M7: 4,609,559 km (0.061 R)
• M8: 4,917,581 km (0.093 R)
• M9: 5,280,356 km (0.048 R)
• M10: 7,060,870 km (0.1 R)
• M11: 7,263,575 km (0.088 R)
• M12: 8,391,842 km (0.074 R)
• M13: 8,792,465 km (0.084 R)
• M14: 8,968,093 km (0.102 R)
• M15: 10,523,462 km (0.102 R)
• M16: 11,748,968 km (0.072 R)
• M17: 13,218,617 km (0.089 R)
• M18: 14,077,010 km (0.084 R)
• M19: 17,790,179 km (0.107 R)
• M20: 20,735,462 km (0.113 R)
• M21: 21,466,546 km (0.095 R)
• M22: 23,313,482 km (0.112 R)
• M23: 24,448,032 km (0.068 R)
• M24: 27,945,331 km (0.095 R)
• M25: 30,945,516 km (0.095 R)
• M26: 31,351,974 km (0.117 R)
• M27: 32,175,660 km (0.118 R)
• M28: 32,453,313 km (0.1 R)
• M29: 32,592,738 km (0.1 R)
• M30: 32,872,935 km (0.102 R)
• M31: 34,009,430 km (0.104 R)
• M32: 39,290,684 km (0.103 R)
• M33: 41,877,082 km (0.107 R)
• M34: 52,970,960 km (0.079 R)
• M35: 53,358,120 km (0.102 R)
• M36: 54,728,287 km (0.104 R)
• M37: 65,203,279 km (0.114 R)
• M38: 67,674,187 km (0.08 R)
• M39: 69,048,094 km (0.118 R)
• M40: 71,614,745 km (0.102 R)
• M41: 72,563,494 km (0.115 R)
• M42: 84,085,074 km (0.081 R)
• M43: 85,672,307 km (0.076 R)
• M44: 91,384,552 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171

Radius: 5.6

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 15.1 AU - 21.02 AU

Year: 28317 Days

Day: 24.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,409,400 km

• M1: 69,713 km (0.114 R)
• M2: 335,847 km (0.05 R)
• M3: 530,923 km (0.08 R)
• M4: 1,244,205 km (0.055 R)
• M5: 1,437,187 km (0.064 R)
• M6: 1,731,595 km (0.098 R)
• M7: 3,076,779 km (0.118 R)
• M8: 3,873,687 km (0.091 R)
• M9: 4,137,728 km (0.1 R)
• M10: 4,540,146 km (0.028 R)
• M11: 4,968,145 km (0.102 R)
• M12: 5,209,596 km (0.059 R)
• M13: 7,255,796 km (0.108 R)
• M14: 8,168,343 km (0.108 R)
• M15: 9,052,915 km (0.091 R)
• M16: 10,780,172 km (0.072 R)
• M17: 11,421,498 km (0.113 R)
• M18: 11,600,716 km (0.065 R)
• M19: 11,964,838 km (0.108 R)
• M20: 18,136,498 km (0.045 R)
• M21: 22,591,373 km (0.048 R)
• M22: 26,348,823 km (0.039 R)
• M23: 26,766,949 km (0.051 R)
• M24: 30,159,679 km (0.071 R)
• M25: 38,449,046 km (0.118 R)
• M26: 45,390,238 km (0.084 R)
• M27: 50,990,883 km (0.085 R)
• M28: 57,384,098 km (0.096 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 12,219 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit