🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.9 AU - 1.16 AU

Year: 378 Days

Day: 39.1 Hours

Environment

Temp: 15 °C

Axial Tilt: 13.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 71,906,913 km

• M1: 22,140 km (0.107 R)
• M2: 367,412 km (0.046 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.13 AU - 1.59 AU

Year: 574 Days

Day: 16.9 Hours

Environment

Temp: -17 °C

Axial Tilt: 5.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 71,906,913 km

• M1: 24,684 km (0.108 R)
• M2: 442,511 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.26 AU - 1.56 AU

Year: 606 Days

Day: 17.9 Hours

Environment

Temp: -21 °C

Axial Tilt: 46.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 71,906,913 km

• M1: 104,419 km (0.094 R)
• M2: 554,559 km (0.052 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.68 AU - 3.4 AU

Year: 1917 Days

Day: 27.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.43 AU - 4.59 AU

Year: 2904 Days

Day: 29.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.1 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.6

Radius: 10.8

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 8.12 AU - 8.26 AU

Year: 8476 Days

Day: 9.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,906,913 km

• M1: 134,638 km (0.092 R)
• M2: 473,328 km (0.025 R)
• M3: 1,082,640 km (0.11 R)
• M4: 1,661,284 km (0.073 R)
• M5: 2,382,346 km (0.096 R)
• M6: 2,744,672 km (0.052 R)
• M7: 3,300,877 km (0.095 R)
• M8: 6,274,583 km (0.065 R)
• M9: 7,203,437 km (0.105 R)
• M10: 8,479,656 km (0.106 R)
• M11: 11,105,847 km (0.046 R)
• M12: 13,151,149 km (0.057 R)
• M13: 14,480,176 km (0.09 R)
• M14: 15,306,405 km (0.101 R)
• M15: 15,830,297 km (0.063 R)
• M16: 36,987,326 km (0.07 R)
• M17: 38,529,231 km (0.074 R)
• M18: 42,635,244 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.5

Radius: 8.9

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 9.99 AU - 13.37 AU

Year: 14436 Days

Day: 13.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,906,913 km

• M1: 110,702 km (0.112 R)
• M2: 444,904 km (0.081 R)
• M3: 770,429 km (0.078 R)
• M4: 1,299,856 km (0.102 R)
• M5: 1,834,519 km (0.116 R)
• M6: 2,114,117 km (0.103 R)
• M7: 4,062,031 km (0.072 R)
• M8: 8,869,957 km (0.062 R)
• M9: 9,349,568 km (0.098 R)
• M10: 10,244,911 km (0.078 R)
• M11: 10,772,991 km (0.075 R)
• M12: 11,883,756 km (0.083 R)
• M13: 13,342,784 km (0.106 R)
• M14: 14,187,114 km (0.063 R)
• M15: 14,549,291 km (0.112 R)
• M16: 15,292,044 km (0.112 R)
• M17: 18,776,926 km (0.097 R)
• M18: 19,836,678 km (0.085 R)
• M19: 23,860,112 km (0.076 R)
• M20: 25,739,810 km (0.104 R)
• M21: 27,046,397 km (0.093 R)
• M22: 28,741,192 km (0.105 R)
• M23: 30,505,549 km (0.115 R)
• M24: 33,604,768 km (0.084 R)
• M25: 36,500,534 km (0.109 R)
• M26: 38,990,291 km (0.118 R)
• M27: 39,415,897 km (0.115 R)
• M28: 39,701,480 km (0.106 R)
• M29: 40,566,305 km (0.068 R)
• M30: 43,236,029 km (0.104 R)
• M31: 51,093,358 km (0.096 R)
• M32: 52,460,383 km (0.086 R)
• M33: 55,089,117 km (0.115 R)
• M34: 58,173,077 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.5

Radius: 7.1

Gravity: 10.11 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 13.01 AU - 17.27 AU

Year: 21305 Days

Day: 18.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,906,913 km

• M1: 97,837 km (0.104 R)
• M2: 321,187 km (0.098 R)
• M3: 645,814 km (0.108 R)
• M4: 1,336,059 km (0.087 R)
• M5: 1,768,396 km (0.077 R)
• M6: 2,227,811 km (0.107 R)
• M7: 3,383,455 km (0.082 R)
• M8: 4,283,286 km (0.117 R)
• M9: 4,753,921 km (0.118 R)
• M10: 5,295,914 km (0.085 R)
• M11: 8,851,856 km (0.089 R)
• M12: 11,024,316 km (0.087 R)
• M13: 11,460,094 km (0.111 R)
• M14: 13,529,033 km (0.091 R)
• M15: 14,100,946 km (0.111 R)
• M16: 27,570,140 km (0.049 R)
• M17: 28,721,594 km (0.08 R)
• M18: 29,546,327 km (0.082 R)
• M19: 39,110,119 km (0.112 R)
• M20: 47,544,298 km (0.091 R)
• M21: 49,030,702 km (0.082 R)
• M22: 51,749,045 km (0.064 R)
• M23: 61,858,420 km (0.043 R)
• M24: 63,232,477 km (0.094 R)
• M25: 68,098,148 km (0.076 R)
• M26: 69,773,793 km (0.065 R)

Kuiper Belt

Range: 30.3 - 45.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 16,054 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit