🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.52 AU - 0.66 AU

Year: 171 Days

Day: 12.7 Hours

Environment

Temp: 179 °C

Axial Tilt: 54.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.61 AU - 0.99 AU

Year: 270 Days

Day: 19.6 Hours

Environment

Temp: 104 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 97,619,880 km

• M1: 48,470 km (0.074 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.76 AU - 1.02 AU

Year: 316 Days

Day: 37.8 Hours

Environment

Temp: 19 °C

Axial Tilt: 68.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.26 AU - 1.36 AU

Year: 565 Days

Day: 21.4 Hours

Environment

Temp: -24 °C

Axial Tilt: 112.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.36 AU - 2.04 AU

Year: 835 Days

Day: 34.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.58 AU - 2.34 AU

Year: 1034 Days

Day: 12.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.82 AU - 2.46 AU

Year: 1179 Days

Day: 27.3 Hours

Environment

Temp: -81 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.06 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 17.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.6

Radius: 4.2

Gravity: 39.83 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 16.39 AU - 19.55 AU

Year: 28698 Days

Day: 16.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 97,619,880 km

• M1: 231,428 km (0.117 R)
• M2: 328,218 km (0.12 R)
• M3: 370,554 km (0.091 R)
• M4: 922,271 km (0.093 R)
• M5: 1,046,437 km (0.088 R)
• M6: 1,450,501 km (0.089 R)
• M7: 1,898,098 km (0.105 R)
• M8: 2,470,160 km (0.042 R)
• M9: 3,419,359 km (0.101 R)
• M10: 4,057,393 km (0.085 R)
• M11: 5,217,974 km (0.098 R)
• M12: 5,777,171 km (0.115 R)
• M13: 5,834,167 km (0.102 R)
• M14: 6,532,191 km (0.081 R)
• M15: 7,317,729 km (0.118 R)
• M16: 7,815,890 km (0.064 R)
• M17: 7,878,871 km (0.025 R)
• M18: 8,132,739 km (0.068 R)
• M19: 8,583,327 km (0.036 R)
• M20: 9,241,109 km (0.111 R)
• M21: 9,643,528 km (0.068 R)
• M22: 9,914,898 km (0.079 R)
• M23: 11,096,272 km (0.07 R)
• M24: 11,595,630 km (0.093 R)
• M25: 13,664,569 km (0.087 R)
• M26: 17,219,463 km (0.094 R)
• M27: 18,129,467 km (0.106 R)
• M28: 18,380,342 km (0.045 R)
• M29: 20,689,386 km (0.072 R)
• M30: 20,776,601 km (0.07 R)
• M31: 22,100,093 km (0.085 R)
• M32: 22,907,174 km (0.095 R)
• M33: 24,365,753 km (0.093 R)
• M34: 25,385,861 km (0.098 R)
• M35: 26,514,427 km (0.111 R)
• M36: 28,820,329 km (0.06 R)
• M37: 29,406,753 km (0.025 R)
• M38: 29,701,460 km (0.097 R)
• M39: 31,590,433 km (0.096 R)
• M40: 31,993,001 km (0.053 R)
• M41: 32,194,958 km (0.075 R)
• M42: 33,928,498 km (0.057 R)
• M43: 36,955,012 km (0.062 R)
• M44: 37,272,908 km (0.085 R)
• M45: 38,553,914 km (0.111 R)
• M46: 40,284,163 km (0.118 R)
• M47: 41,378,322 km (0.078 R)
• M48: 41,488,277 km (0.113 R)
• M49: 42,150,098 km (0.108 R)
• M50: 42,371,503 km (0.086 R)
• M51: 43,707,860 km (0.073 R)
• M52: 44,944,885 km (0.101 R)
• M53: 45,965,591 km (0.114 R)
• M54: 46,421,715 km (0.094 R)
• M55: 48,145,382 km (0.107 R)
• M56: 48,492,599 km (0.104 R)
• M57: 49,889,843 km (0.053 R)
• M58: 50,241,248 km (0.051 R)
• M59: 51,182,219 km (0.066 R)
• M60: 52,129,024 km (0.084 R)
• M61: 52,843,054 km (0.052 R)
• M62: 55,852,365 km (0.04 R)
• M63: 55,973,838 km (0.045 R)
• M64: 57,930,130 km (0.066 R)
• M65: 58,422,756 km (0.103 R)
• M66: 63,677,979 km (0.059 R)
• M67: 66,748,027 km (0.069 R)
• M68: 68,951,603 km (0.058 R)
• M69: 70,127,891 km (0.066 R)
• M70: 70,784,327 km (0.109 R)
• M71: 71,574,503 km (0.117 R)
• M72: 72,898,145 km (0.105 R)
• M73: 73,296,823 km (0.061 R)
• M74: 73,696,249 km (0.102 R)
• M75: 74,898,867 km (0.067 R)
• M76: 75,973,129 km (0.101 R)
• M77: 78,817,433 km (0.109 R)
• M78: 79,090,150 km (0.07 R)
• M79: 82,248,760 km (0.075 R)
• M80: 85,448,209 km (0.118 R)
• M81: 85,588,233 km (0.099 R)
• M82: 85,728,406 km (0.066 R)
• M83: 86,570,642 km (0.056 R)
• M84: 87,556,642 km (0.064 R)
• M85: 89,397,892 km (0.111 R)
• M86: 90,394,513 km (0.058 R)
• M87: 90,822,812 km (0.103 R)
• M88: 91,108,694 km (0.119 R)
• M89: 91,681,354 km (0.079 R)
• M90: 93,118,391 km (0.086 R)
• M91: 97,181,170 km (0.109 R)
• M92: 97,327,327 km (0.109 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 12,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit