🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.67 AU - 0.67 AU

Year: 360 Days

Day: 38.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,489,365 km

• M1: 94,695 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.1

Radius: 14.4

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.8 AU - 0.88 AU

Year: 505 Days

Day: 12.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,489,365 km

• M1: 186,698 km (0.082 R)
• M2: 711,338 km (0.08 R)
• M3: 1,240,615 km (0.096 R)
• M4: 1,948,063 km (0.113 R)
• M5: 2,497,985 km (0.042 R)
• M6: 3,074,535 km (0.091 R)
• M7: 3,577,932 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.2

Radius: 13.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.97 AU - 1.45 AU

Year: 873 Days

Day: 5.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,489,365 km

• M1: 175,777 km (0.119 R)
• M2: 670,647 km (0.078 R)
• M3: 1,164,320 km (0.119 R)
• M4: 1,880,595 km (0.088 R)
• M5: 2,432,461 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.6

Radius: 14

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.19 AU - 1.63 AU

Year: 1098 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,489,365 km

• M1: 174,132 km (0.061 R)
• M2: 652,097 km (0.053 R)
• M3: 1,167,462 km (0.064 R)
• M4: 1,666,969 km (0.049 R)
• M5: 2,365,591 km (0.116 R)
• M6: 2,974,754 km (0.026 R)
• M7: 3,687,438 km (0.051 R)
• M8: 4,687,948 km (0.083 R)
• M9: 5,325,235 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.1

Radius: 14.3

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.73 AU - 3.83 AU

Year: 3897 Days

Day: 12 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,489,365 km

• M1: 189,840 km (0.066 R)
• M2: 702,212 km (0.073 R)
• M3: 1,581,100 km (0.085 R)
• M4: 2,167,075 km (0.087 R)
• M5: 2,741,531 km (0.054 R)
• M6: 4,528,477 km (0.117 R)
• M7: 5,255,672 km (0.104 R)
• M8: 5,705,364 km (0.103 R)
• M9: 7,294,243 km (0.095 R)
• M10: 8,000,644 km (0.065 R)
• M11: 8,598,287 km (0.043 R)
• M12: 11,817,035 km (0.085 R)
• M13: 12,514,460 km (0.117 R)
• M14: 12,994,520 km (0.09 R)
• M15: 14,291,982 km (0.06 R)
• M16: 15,084,103 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 862.1

Radius: 6.1

Gravity: 23.17 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.94 AU - 8.14 AU

Year: 14955 Days

Day: 16 Hours

Environment

Temp: -236 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,489,365 km

• M1: 75,846 km (0.062 R)
• M2: 337,493 km (0.099 R)
• M3: 561,890 km (0.089 R)
• M4: 1,348,176 km (0.071 R)
• M5: 2,311,885 km (0.075 R)
• M6: 6,485,816 km (0.103 R)
• M7: 8,374,938 km (0.107 R)
• M8: 10,312,230 km (0.063 R)
• M9: 11,446,481 km (0.069 R)
• M10: 14,678,094 km (0.07 R)
• M11: 22,380,739 km (0.09 R)
• M12: 23,663,391 km (0.1 R)
• M13: 27,692,810 km (0.082 R)
• M14: 28,368,244 km (0.085 R)
• M15: 33,787,876 km (0.048 R)
• M16: 35,869,829 km (0.071 R)
• M17: 36,403,445 km (0.061 R)
• M18: 38,312,613 km (0.09 R)
• M19: 39,150,960 km (0.117 R)
• M20: 46,460,012 km (0.093 R)
• M21: 47,094,008 km (0.031 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.5

Radius: 5.9

Gravity: 15.27 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.27 AU - 9.05 AU

Year: 16718 Days

Day: 21.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 49,489,365 km

• M1: 79,736 km (0.06 R)
• M2: 411,245 km (0.079 R)
• M3: 715,377 km (0.117 R)
• M4: 1,252,882 km (0.111 R)
• M5: 1,448,407 km (0.1 R)
• M6: 1,955,543 km (0.056 R)
• M7: 2,445,177 km (0.116 R)
• M8: 3,315,238 km (0.033 R)
• M9: 3,665,148 km (0.081 R)
• M10: 3,950,880 km (0.1 R)
• M11: 4,159,569 km (0.083 R)
• M12: 7,819,630 km (0.045 R)
• M13: 9,456,829 km (0.081 R)
• M14: 10,271,539 km (0.11 R)
• M15: 11,250,358 km (0.114 R)
• M16: 12,102,019 km (0.044 R)
• M17: 13,932,798 km (0.116 R)
• M18: 14,771,144 km (0.097 R)
• M19: 18,051,975 km (0.069 R)
• M20: 20,608,603 km (0.066 R)
• M21: 22,630,119 km (0.099 R)
• M22: 26,008,338 km (0.08 R)
• M23: 28,144,895 km (0.06 R)
• M24: 28,919,363 km (0.091 R)
• M25: 29,936,030 km (0.081 R)
• M26: 33,006,825 km (0.109 R)
• M27: 42,160,420 km (0.088 R)
• M28: 42,448,246 km (0.077 R)
• M29: 43,466,409 km (0.038 R)
• M30: 44,649,878 km (0.049 R)
• M31: 45,099,120 km (0.103 R)
• M32: 49,598,426 km (0.117 R)
• M33: 50,080,281 km (0.085 R)
• M34: 50,727,591 km (0.075 R)
• M35: 51,380,585 km (0.091 R)
• M36: 53,372,780 km (0.062 R)
• M37: 60,020,760 km (0.051 R)
• M38: 60,751,097 km (0.095 R)

Asteroid Belt

Center: 9.44 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.6

Radius: 4

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.84 AU - 12.58 AU

Year: 21402 Days

Day: 19.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,489,365 km

• M1: 213,327 km (0.054 R)
• M2: 388,805 km (0.1 R)
• M3: 716,275 km (0.117 R)
• M4: 2,959,943 km (0.093 R)
• M5: 6,379,152 km (0.107 R)
• M6: 8,639,427 km (0.075 R)
• M7: 9,646,220 km (0.103 R)
• M8: 11,889,740 km (0.111 R)
• M9: 16,862,522 km (0.057 R)
• M10: 26,033,171 km (0.053 R)
• M11: 27,209,609 km (0.115 R)
• M12: 33,170,485 km (0.107 R)
• M13: 39,816,820 km (0.119 R)
• M14: 44,616,069 km (0.107 R)
• M15: 44,754,597 km (0.053 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 14,576 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit