🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.9

Radius: 11.7

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.61 AU - 0.87 AU

Year: 424 Days

Day: 14.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,558,420 km

• M1: 145,559 km (0.117 R)
• M2: 646,712 km (0.054 R)
• M3: 1,012,628 km (0.105 R)
• M4: 1,829,582 km (0.066 R)
• M5: 2,550,644 km (0.097 R)
• M6: 2,923,292 km (0.112 R)
• M7: 3,416,367 km (0.06 R)
• M8: 4,086,864 km (0.097 R)
• M9: 4,526,981 km (0.078 R)
• M10: 5,469,597 km (0.072 R)
• M11: 5,846,584 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 12.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.64 AU - 0.94 AU

Year: 468 Days

Day: 15 Hours

Environment

Temp: -166 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,558,420 km

• M1: 156,779 km (0.062 R)
• M2: 570,865 km (0.111 R)
• M3: 1,014,274 km (0.096 R)
• M4: 1,410,259 km (0.104 R)
• M5: 2,050,388 km (0.094 R)
• M6: 2,701,588 km (0.083 R)
• M7: 3,111,486 km (0.119 R)
• M8: 3,765,378 km (0.097 R)
• M9: 4,305,128 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 8.8

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.92 AU - 1.02 AU

Year: 637 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,558,420 km

• M1: 109,506 km (0.094 R)
• M2: 388,206 km (0.111 R)
• M3: 735,872 km (0.059 R)
• M4: 1,176,737 km (0.079 R)
• M5: 1,455,288 km (0.086 R)
• M6: 1,778,719 km (0.093 R)
• M7: 2,083,150 km (0.058 R)
• M8: 2,401,644 km (0.094 R)
• M9: 2,810,346 km (0.074 R)
• M10: 3,811,305 km (0.114 R)
• M11: 4,643,668 km (0.115 R)
• M12: 5,102,933 km (0.115 R)
• M13: 5,667,515 km (0.058 R)
• M14: 6,964,080 km (0.034 R)
• M15: 7,566,660 km (0.105 R)
• M16: 7,868,998 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.2

Radius: 13.4

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.1 AU - 1.44 AU

Year: 954 Days

Day: 9.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,558,420 km

• M1: 166,652 km (0.103 R)
• M2: 692,937 km (0.031 R)
• M3: 1,276,219 km (0.088 R)
• M4: 2,700,690 km (0.064 R)
• M5: 3,179,254 km (0.1 R)
• M6: 3,714,814 km (0.084 R)
• M7: 4,545,382 km (0.105 R)
• M8: 5,227,997 km (0.089 R)
• M9: 5,794,225 km (0.032 R)
• M10: 6,731,605 km (0.067 R)
• M11: 7,331,492 km (0.119 R)
• M12: 8,533,063 km (0.04 R)
• M13: 9,126,069 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.7

Radius: 8

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.79 AU - 2.77 AU

Year: 2296 Days

Day: 12.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,558,420 km

• M1: 109,506 km (0.096 R)
• M2: 1,069,326 km (0.071 R)
• M3: 1,425,219 km (0.11 R)
• M4: 3,000,634 km (0.099 R)
• M5: 3,480,843 km (0.086 R)
• M6: 4,678,225 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.5

Radius: 13.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.71 AU - 4.37 AU

Year: 4442 Days

Day: 12 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,558,420 km

• M1: 171,888 km (0.117 R)
• M2: 687,402 km (0.104 R)
• M3: 1,415,345 km (0.098 R)
• M4: 2,398,503 km (0.11 R)
• M5: 2,958,597 km (0.116 R)
• M6: 3,542,926 km (0.12 R)
• M7: 4,321,583 km (0.062 R)
• M8: 5,487,699 km (0.066 R)
• M9: 5,920,037 km (0.034 R)
• M10: 8,857,690 km (0.036 R)
• M11: 10,686,673 km (0.12 R)
• M12: 11,226,572 km (0.105 R)
• M13: 13,570,920 km (0.052 R)
• M14: 16,108,250 km (0.086 R)
• M15: 18,623,439 km (0.103 R)
• M16: 21,109,008 km (0.047 R)
• M17: 24,887,102 km (0.083 R)
• M18: 26,648,018 km (0.105 R)
• M19: 27,391,819 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.4

Radius: 10.1

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.24 AU - 4.66 AU

Year: 5235 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,558,420 km

• M1: 125,662 km (0.104 R)
• M2: 606,320 km (0.048 R)
• M3: 931,396 km (0.098 R)
• M4: 1,396,945 km (0.078 R)
• M5: 2,118,007 km (0.101 R)
• M6: 2,601,058 km (0.071 R)
• M7: 3,370,889 km (0.111 R)
• M8: 4,115,737 km (0.082 R)
• M9: 4,663,115 km (0.089 R)
• M10: 5,111,011 km (0.104 R)
• M11: 5,459,275 km (0.059 R)
• M12: 6,148,472 km (0.088 R)
• M13: 8,566,572 km (0.039 R)
• M14: 9,571,272 km (0.028 R)
• M15: 10,296,522 km (0.043 R)
• M16: 11,558,081 km (0.109 R)
• M17: 12,425,001 km (0.112 R)
• M18: 13,241,656 km (0.112 R)
• M19: 14,483,916 km (0.103 R)
• M20: 16,652,337 km (0.054 R)
• M21: 17,644,770 km (0.101 R)
• M22: 18,851,875 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 11,239 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit