🌌 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: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.49 AU - 0.71 AU

Year: 172 Days

Day: 26.3 Hours

Environment

Temp: 176 °C

Axial Tilt: 11.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.67 AU - 0.97 AU

Year: 275 Days

Day: 20.9 Hours

Environment

Temp: 166 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,706,975 km

• M1: 359,783 km (0.029 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.81 AU - 1.23 AU

Year: 382 Days

Day: 17 Hours

Environment

Temp: 27 °C

Axial Tilt: 180 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.63 AU - 2.03 AU

Year: 918 Days

Day: 26.3 Hours

Environment

Temp: -61 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.82 AU - 2.26 AU

Year: 1081 Days

Day: 19.4 Hours

Environment

Temp: -77 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,706,975 km

• M1: 1,260,960 km (0.054 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.75 AU - 2.45 AU

Year: 1129 Days

Day: 26.4 Hours

Environment

Temp: -79 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.78 AU - 3.46 AU

Year: 2044 Days

Day: 20.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 48.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.11 AU - 4.05 AU

Year: 2512 Days

Day: 40.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.44 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 902

Radius: 6.6

Gravity: 20.71 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 13.23 AU - 13.37 AU

Year: 17988 Days

Day: 24.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 77,706,975 km

• M1: 84,523 km (0.051 R)
• M2: 197,170 km (0.045 R)
• M3: 318,344 km (0.118 R)
• M4: 370,704 km (0.089 R)
• M5: 505,790 km (0.085 R)
• M6: 590,313 km (0.051 R)
• M7: 1,029,233 km (0.106 R)
• M8: 2,723,130 km (0.097 R)
• M9: 3,762,536 km (0.069 R)
• M10: 4,148,349 km (0.11 R)
• M11: 4,773,219 km (0.037 R)
• M12: 5,096,650 km (0.034 R)
• M13: 5,427,261 km (0.079 R)
• M14: 5,862,591 km (0.097 R)
• M15: 6,308,991 km (0.065 R)
• M16: 6,409,670 km (0.085 R)
• M17: 6,817,773 km (0.109 R)
• M18: 7,287,062 km (0.088 R)
• M19: 7,659,261 km (0.107 R)
• M20: 8,037,594 km (0.12 R)
• M21: 8,644,363 km (0.114 R)
• M22: 9,094,952 km (0.062 R)
• M23: 10,254,635 km (0.108 R)
• M24: 10,373,116 km (0.098 R)
• M25: 11,706,632 km (0.106 R)
• M26: 11,830,499 km (0.036 R)
• M27: 12,330,305 km (0.112 R)
• M28: 14,398,047 km (0.071 R)
• M29: 15,200,640 km (0.031 R)
• M30: 16,918,921 km (0.093 R)
• M31: 17,694,287 km (0.112 R)
• M32: 17,907,763 km (0.036 R)
• M33: 18,770,344 km (0.077 R)
• M34: 18,842,749 km (0.112 R)
• M35: 20,163,250 km (0.094 R)
• M36: 20,386,300 km (0.119 R)
• M37: 20,460,800 km (0.073 R)
• M38: 20,535,449 km (0.108 R)
• M39: 20,834,645 km (0.082 R)
• M40: 22,122,832 km (0.066 R)
• M41: 25,014,260 km (0.054 R)
• M42: 27,279,920 km (0.043 R)
• M43: 27,362,049 km (0.113 R)
• M44: 28,271,006 km (0.118 R)
• M45: 28,437,209 km (0.06 R)
• M46: 29,189,686 km (0.116 R)
• M47: 30,033,269 km (0.03 R)
• M48: 30,118,091 km (0.056 R)
• M49: 31,572,032 km (0.103 R)
• M50: 31,917,454 km (0.117 R)
• M51: 32,003,921 km (0.114 R)
• M52: 32,524,971 km (0.115 R)
• M53: 33,575,148 km (0.095 R)
• M54: 35,798,770 km (0.103 R)
• M55: 36,158,853 km (0.118 R)
• M56: 36,973,563 km (0.082 R)
• M57: 37,611,448 km (0.064 R)
• M58: 38,253,073 km (0.12 R)
• M59: 39,083,192 km (0.077 R)
• M60: 39,361,145 km (0.077 R)
• M61: 40,012,494 km (0.104 R)
• M62: 40,761,081 km (0.088 R)
• M63: 41,043,073 km (0.116 R)
• M64: 41,609,002 km (0.075 R)
• M65: 42,082,479 km (0.04 R)
• M66: 42,748,340 km (0.091 R)
• M67: 47,605,034 km (0.097 R)
• M68: 47,802,952 km (0.101 R)
• M69: 48,199,536 km (0.082 R)
• M70: 49,696,413 km (0.082 R)
• M71: 50,702,758 km (0.112 R)
• M72: 52,428,967 km (0.1 R)
• M73: 53,350,640 km (0.071 R)
• M74: 53,556,038 km (0.029 R)
• M75: 54,794,858 km (0.086 R)
• M76: 55,209,842 km (0.106 R)
• M77: 56,251,941 km (0.069 R)
• M78: 60,591,925 km (0.06 R)
• M79: 61,021,121 km (0.073 R)
• M80: 64,599,801 km (0.076 R)
• M81: 66,691,030 km (0.073 R)
• M82: 67,244,991 km (0.064 R)
• M83: 67,355,992 km (0.076 R)
• M84: 69,476,243 km (0.072 R)
• M85: 70,600,920 km (0.064 R)
• M86: 71,731,581 km (0.116 R)
• M87: 73,096,362 km (0.092 R)
• M88: 73,324,648 km (0.1 R)
• M89: 73,781,969 km (0.109 R)
• M90: 74,814,344 km (0.107 R)
• M91: 75,044,425 km (0.109 R)
• M92: 75,851,506 km (0.113 R)
• M93: 77,241,719 km (0.093 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: 500 - 19,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit