🌌 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: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.47 AU - 0.63 AU

Year: 145 Days

Day: 15.5 Hours

Environment

Temp: 272 °C

Axial Tilt: 0.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 89,604,224 km

• M1: 208,988 km (0.084 R)
• M2: 470,784 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.79 AU - 0.81 AU

Year: 254 Days

Day: 25.2 Hours

Environment

Temp: 182 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 89,604,224 km

• M1: 53,706 km (0.088 R)
• M2: 362,775 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.85 AU - 0.87 AU

Year: 283 Days

Day: 28.6 Hours

Environment

Temp: 183 °C

Axial Tilt: 45.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.77 AU - 1.01 AU

Year: 298 Days

Day: 28.1 Hours

Environment

Temp: 172 °C

Axial Tilt: 29.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.81 AU - 1.35 AU

Year: 398 Days

Day: 25 Hours

Environment

Temp: 49 °C

Axial Tilt: 24.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.95 AU - 1.33 AU

Year: 432 Days

Day: 28.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 0.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.38 AU - 1.78 AU

Year: 705 Days

Day: 38.2 Hours

Environment

Temp: -40 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 89,604,224 km

• M1: 39,943 km (0.083 R)
• M2: 639,082 km (0.101 R)

Planet 8 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.8 AU - 1.84 AU

Year: 871 Days

Day: 47.2 Hours

Environment

Temp: -55 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,604,224 km

• M1: 66,421 km (0.075 R)

Asteroid Belt

Center: 9.96 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 18.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.6

Radius: 7.7

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 17.33 AU - 18.85 AU

Year: 27296 Days

Day: 22.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 89,604,224 km

• M1: 198,965 km (0.061 R)
• M2: 449,542 km (0.09 R)
• M3: 1,753,437 km (0.106 R)
• M4: 2,472,254 km (0.089 R)
• M5: 3,011,555 km (0.08 R)
• M6: 3,723,940 km (0.085 R)
• M7: 4,437,222 km (0.108 R)
• M8: 4,535,508 km (0.082 R)
• M9: 4,784,439 km (0.111 R)
• M10: 5,347,825 km (0.096 R)
• M11: 5,932,004 km (0.091 R)
• M12: 6,369,728 km (0.104 R)
• M13: 6,536,529 km (0.107 R)
• M14: 6,988,315 km (0.068 R)
• M15: 8,282,486 km (0.116 R)
• M16: 8,586,768 km (0.055 R)
• M17: 9,081,339 km (0.082 R)
• M18: 10,162,782 km (0.118 R)
• M19: 11,083,557 km (0.053 R)
• M20: 11,553,892 km (0.088 R)
• M21: 11,621,660 km (0.108 R)
• M22: 11,689,578 km (0.061 R)
• M23: 11,893,928 km (0.108 R)
• M24: 12,583,724 km (0.101 R)
• M25: 14,583,399 km (0.082 R)
• M26: 17,063,881 km (0.092 R)
• M27: 17,141,074 km (0.034 R)
• M28: 17,919,431 km (0.086 R)
• M29: 18,155,048 km (0.07 R)
• M30: 18,709,159 km (0.103 R)
• M31: 19,268,655 km (0.082 R)
• M32: 19,349,138 km (0.032 R)
• M33: 20,159,061 km (0.104 R)
• M34: 21,644,867 km (0.098 R)
• M35: 21,728,492 km (0.106 R)
• M36: 22,232,188 km (0.102 R)
• M37: 22,485,607 km (0.117 R)
• M38: 23,165,679 km (0.116 R)
• M39: 23,422,539 km (0.091 R)
• M40: 23,766,464 km (0.101 R)
• M41: 24,198,652 km (0.12 R)
• M42: 25,070,808 km (0.066 R)
• M43: 26,220,019 km (0.054 R)
• M44: 26,398,339 km (0.042 R)
• M45: 26,935,695 km (0.064 R)
• M46: 29,490,827 km (0.108 R)
• M47: 30,048,378 km (0.074 R)
• M48: 30,141,577 km (0.1 R)
• M49: 33,369,301 km (0.051 R)
• M50: 34,534,519 km (0.04 R)
• M51: 35,318,711 km (0.03 R)
• M52: 35,713,051 km (0.102 R)
• M53: 38,008,331 km (0.082 R)
• M54: 38,513,523 km (0.097 R)
• M55: 38,614,950 km (0.109 R)
• M56: 40,969,621 km (0.1 R)
• M57: 42,425,657 km (0.105 R)
• M58: 44,110,279 km (0.09 R)
• M59: 44,216,343 km (0.053 R)
• M60: 44,960,742 km (0.097 R)
• M61: 46,677,976 km (0.082 R)
• M62: 50,619,432 km (0.117 R)
• M63: 51,175,337 km (0.059 R)
• M64: 51,509,688 km (0.109 R)
• M65: 52,180,784 km (0.118 R)
• M66: 52,629,877 km (0.06 R)
• M67: 53,757,995 km (0.108 R)
• M68: 53,984,486 km (0.054 R)
• M69: 54,438,665 km (0.039 R)
• M70: 55,122,178 km (0.115 R)
• M71: 55,465,056 km (0.111 R)
• M72: 57,189,920 km (0.055 R)
• M73: 57,536,987 km (0.119 R)
• M74: 57,768,714 km (0.111 R)
• M75: 59,516,914 km (0.047 R)
• M76: 59,868,619 km (0.083 R)
• M77: 61,874,727 km (0.077 R)
• M78: 62,707,089 km (0.055 R)
• M79: 62,945,698 km (0.075 R)
• M80: 63,303,985 km (0.114 R)
• M81: 63,423,663 km (0.07 R)
• M82: 70,116,372 km (0.04 R)
• M83: 73,106,235 km (0.108 R)
• M84: 73,482,923 km (0.105 R)
• M85: 74,364,354 km (0.078 R)
• M86: 74,616,875 km (0.096 R)
• M87: 75,249,225 km (0.106 R)
• M88: 79,854,895 km (0.044 R)
• M89: 80,242,802 km (0.099 R)
• M90: 81,280,263 km (0.068 R)
• M91: 81,800,714 km (0.088 R)
• M92: 82,975,656 km (0.111 R)
• M93: 83,106,554 km (0.115 R)
• M94: 84,156,282 km (0.12 R)
• M95: 89,604,188 km (0.099 R)

Kuiper Belt

Range: 30.9 - 51.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 17,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit