🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.43 AU - 0.63 AU

Year: 146 Days

Day: 24.5 Hours

Environment

Temp: 154 °C

Axial Tilt: 37.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 53,427,420 km

• M1: 43,832 km (0.095 R)
• M2: 218,862 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.93 AU - 1.01 AU

Year: 362 Days

Day: 26 Hours

Environment

Temp: 18 °C

Axial Tilt: 38.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.06 AU - 2.42 AU

Year: 1270 Days

Day: 41.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,427,420 km

• M1: 106,663 km (0.062 R)
• M2: 453,880 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.11 AU - 2.71 AU

Year: 1417 Days

Day: 37.1 Hours

Environment

Temp: -101 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,427,420 km

• M1: 93,199 km (0.109 R)
• M2: 1,839,306 km (0.107 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.7 AU - 3.04 AU

Year: 1841 Days

Day: 33.7 Hours

Environment

Temp: -103 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.1

Radius: 11

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.64 AU - 6.26 AU

Year: 4819 Days

Day: 11 Hours

Environment

Temp: -147 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,427,420 km

• M1: 136,732 km (0.062 R)
• M2: 499,956 km (0.097 R)
• M3: 906,563 km (0.053 R)
• M4: 1,257,968 km (0.113 R)
• M5: 1,739,225 km (0.071 R)
• M6: 2,356,914 km (0.113 R)
• M7: 3,115,824 km (0.034 R)
• M8: 3,686,391 km (0.108 R)
• M9: 4,097,336 km (0.063 R)
• M10: 4,684,657 km (0.035 R)
• M11: 5,740,519 km (0.112 R)
• M12: 7,242,033 km (0.04 R)
• M13: 9,698,430 km (0.077 R)
• M14: 10,443,128 km (0.093 R)
• M15: 11,540,279 km (0.084 R)
• M16: 12,187,290 km (0.045 R)
• M17: 12,567,867 km (0.104 R)
• M18: 13,706,307 km (0.091 R)
• M19: 15,238,039 km (0.037 R)
• M20: 20,582,872 km (0.097 R)
• M21: 23,089,534 km (0.115 R)
• M22: 23,672,965 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.8

Radius: 11.3

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 5.29 AU - 6.11 AU

Year: 5154 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,427,420 km

• M1: 140,622 km (0.071 R)
• M2: 518,207 km (0.088 R)
• M3: 994,975 km (0.11 R)
• M4: 1,550,881 km (0.118 R)
• M5: 2,132,667 km (0.039 R)
• M6: 2,735,995 km (0.098 R)
• M7: 3,180,600 km (0.104 R)
• M8: 4,401,319 km (0.083 R)
• M9: 5,464,212 km (0.118 R)
• M10: 6,056,171 km (0.113 R)
• M11: 6,721,881 km (0.095 R)
• M12: 7,170,525 km (0.063 R)
• M13: 8,526,630 km (0.119 R)
• M14: 9,761,411 km (0.086 R)
• M15: 10,421,736 km (0.034 R)
• M16: 11,244,524 km (0.118 R)
• M17: 12,344,966 km (0.111 R)
• M18: 14,076,561 km (0.092 R)
• M19: 16,134,130 km (0.111 R)
• M20: 17,652,549 km (0.09 R)
• M21: 25,294,307 km (0.113 R)
• M22: 25,756,714 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.9

Radius: 5.6

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 13.58 AU - 14.62 AU

Year: 20053 Days

Day: 20.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 53,427,420 km

• M1: 70,012 km (0.115 R)
• M2: 253,419 km (0.032 R)
• M3: 477,516 km (0.091 R)
• M4: 702,063 km (0.113 R)
• M5: 923,468 km (0.087 R)
• M6: 2,057,719 km (0.061 R)
• M7: 2,396,857 km (0.067 R)
• M8: 4,223,746 km (0.08 R)
• M9: 6,819,718 km (0.1 R)
• M10: 7,572,195 km (0.098 R)
• M11: 8,518,402 km (0.114 R)
• M12: 11,252,602 km (0.087 R)
• M13: 13,284,889 km (0.089 R)
• M14: 13,603,084 km (0.113 R)
• M15: 13,861,290 km (0.114 R)
• M16: 16,045,868 km (0.082 R)
• M17: 16,552,705 km (0.102 R)
• M18: 18,528,743 km (0.058 R)
• M19: 19,737,345 km (0.1 R)
• M20: 20,741,595 km (0.11 R)
• M21: 20,997,856 km (0.095 R)
• M22: 21,779,206 km (0.1 R)
• M23: 25,390,648 km (0.113 R)
• M24: 28,112,282 km (0.113 R)
• M25: 35,815,226 km (0.109 R)
• M26: 36,804,667 km (0.112 R)
• M27: 38,194,730 km (0.061 R)
• M28: 39,357,704 km (0.077 R)
• M29: 41,079,127 km (0.096 R)
• M30: 43,964,720 km (0.1 R)
• M31: 45,528,915 km (0.066 R)
• M32: 47,572,871 km (0.097 R)
• M33: 50,289,568 km (0.092 R)
• M34: 51,373,405 km (0.113 R)
• M35: 52,631,074 km (0.08 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 19,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit