🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.3

Radius: 9.6

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.94 AU - 1.56 AU

Year: 889 Days

Day: 14.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 111.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,387,736 km

• M1: 119,678 km (0.105 R)
• M2: 425,456 km (0.086 R)
• M3: 927,357 km (0.107 R)
• M4: 1,335,011 km (0.049 R)
• M5: 1,724,863 km (0.094 R)
• M6: 2,707,273 km (0.113 R)
• M7: 3,033,546 km (0.11 R)
• M8: 3,339,024 km (0.12 R)
• M9: 3,753,261 km (0.096 R)
• M10: 4,092,848 km (0.11 R)
• M11: 4,424,656 km (0.081 R)
• M12: 4,774,266 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.5

Radius: 8.6

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.69 AU - 1.89 AU

Year: 1523 Days

Day: 8.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,387,736 km

• M1: 151,243 km (0.094 R)
• M2: 740,509 km (0.102 R)
• M3: 1,721,124 km (0.107 R)
• M4: 2,297,524 km (0.108 R)
• M5: 2,968,770 km (0.101 R)
• M6: 3,601,569 km (0.088 R)
• M7: 5,511,634 km (0.118 R)
• M8: 7,135,370 km (0.081 R)
• M9: 7,420,952 km (0.036 R)
• M10: 7,822,772 km (0.044 R)
• M11: 8,438,217 km (0.058 R)
• M12: 9,483,458 km (0.062 R)
• M13: 9,956,935 km (0.046 R)
• M14: 10,446,120 km (0.098 R)
• M15: 11,437,206 km (0.086 R)
• M16: 12,677,522 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.6

Radius: 13.3

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.73 AU - 2.39 AU

Year: 1880 Days

Day: 14.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,387,736 km

• M1: 165,455 km (0.082 R)
• M2: 716,873 km (0.065 R)
• M3: 1,424,770 km (0.091 R)
• M4: 2,046,798 km (0.113 R)
• M5: 2,680,794 km (0.061 R)
• M6: 3,733,065 km (0.095 R)
• M7: 4,891,252 km (0.071 R)
• M8: 6,098,208 km (0.085 R)
• M9: 7,495,153 km (0.083 R)
• M10: 9,447,405 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.9

Radius: 10.4

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.56 AU - 2.64 AU

Year: 2666 Days

Day: 12.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,387,736 km

• M1: 129,402 km (0.091 R)
• M2: 936,034 km (0.09 R)
• M3: 1,769,892 km (0.043 R)
• M4: 2,812,290 km (0.111 R)
• M5: 3,138,863 km (0.105 R)
• M6: 4,051,709 km (0.074 R)
• M7: 4,597,891 km (0.113 R)
• M8: 5,519,114 km (0.058 R)
• M9: 6,419,394 km (0.087 R)
• M10: 8,097,284 km (0.065 R)
• M11: 10,591,380 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.4

Radius: 11.7

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.45 AU - 3.89 AU

Year: 3589 Days

Day: 8.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,387,736 km

• M1: 151,094 km (0.107 R)
• M2: 529,576 km (0.102 R)
• M3: 1,390,662 km (0.102 R)
• M4: 2,967,423 km (0.101 R)
• M5: 3,406,493 km (0.045 R)
• M6: 4,416,578 km (0.083 R)
• M7: 4,991,782 km (0.083 R)
• M8: 6,263,214 km (0.11 R)
• M9: 7,572,495 km (0.073 R)
• M10: 8,081,726 km (0.116 R)
• M11: 8,907,057 km (0.079 R)
• M12: 9,397,888 km (0.102 R)
• M13: 9,866,877 km (0.096 R)
• M14: 10,269,744 km (0.119 R)
• M15: 11,325,008 km (0.108 R)
• M16: 14,406,125 km (0.113 R)
• M17: 14,925,380 km (0.091 R)
• M18: 18,126,624 km (0.11 R)
• M19: 19,101,703 km (0.11 R)
• M20: 20,369,246 km (0.102 R)
• M21: 23,212,503 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.9

Radius: 10.2

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.98 AU - 5.12 AU

Year: 6171 Days

Day: 10.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,387,736 km

• M1: 146,157 km (0.106 R)
• M2: 564,732 km (0.081 R)
• M3: 1,541,905 km (0.115 R)
• M4: 2,020,768 km (0.101 R)
• M5: 2,456,247 km (0.083 R)
• M6: 3,343,512 km (0.095 R)
• M7: 3,767,473 km (0.078 R)
• M8: 4,201,905 km (0.039 R)
• M9: 5,000,608 km (0.048 R)
• M10: 6,284,906 km (0.116 R)
• M11: 7,401,953 km (0.047 R)
• M12: 8,443,453 km (0.039 R)
• M13: 9,712,193 km (0.089 R)
• M14: 10,162,183 km (0.051 R)
• M15: 10,720,483 km (0.072 R)
• M16: 11,546,113 km (0.076 R)
• M17: 12,783,437 km (0.065 R)
• M18: 14,049,933 km (0.111 R)
• M19: 16,639,322 km (0.072 R)
• M20: 17,945,910 km (0.059 R)
• M21: 18,555,521 km (0.04 R)
• M22: 22,043,396 km (0.072 R)
• M23: 23,698,397 km (0.078 R)
• M24: 28,973,368 km (0.032 R)
• M25: 34,047,428 km (0.077 R)
• M26: 35,086,834 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.5

Radius: 3.8

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.46 AU - 7.8 AU

Year: 13400 Days

Day: 15.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,387,736 km

• M1: 51,910 km (0.098 R)
• M2: 194,776 km (0.114 R)
• M3: 599,439 km (0.064 R)
• M4: 1,473,389 km (0.1 R)
• M5: 2,447,421 km (0.106 R)
• M6: 3,078,275 km (0.092 R)
• M7: 3,310,750 km (0.105 R)
• M8: 4,544,783 km (0.117 R)
• M9: 5,959,231 km (0.105 R)
• M10: 7,642,656 km (0.063 R)
• M11: 9,797,464 km (0.098 R)
• M12: 11,012,946 km (0.099 R)
• M13: 13,238,065 km (0.074 R)
• M14: 13,908,563 km (0.089 R)
• M15: 14,079,703 km (0.116 R)
• M16: 17,471,535 km (0.066 R)
• M17: 24,213,014 km (0.066 R)
• M18: 27,120,149 km (0.096 R)
• M19: 32,003,173 km (0.099 R)
• M20: 34,965,361 km (0.087 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 15,506 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit