🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.6

Radius: 11.5

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.49 AU - 0.59 AU

Year: 274 Days

Day: 13.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,209,521 km

• M1: 143,016 km (0.106 R)
• M2: 636,539 km (0.096 R)
• M3: 1,012,179 km (0.097 R)
• M4: 1,872,816 km (0.078 R)
• M5: 2,310,539 km (0.118 R)
• M6: 2,768,608 km (0.081 R)
• M7: 3,319,278 km (0.103 R)
• M8: 4,230,478 km (0.08 R)
• M9: 4,655,187 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.8

Radius: 14.3

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.48 AU - 0.78 AU

Year: 345 Days

Day: 8.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,209,521 km

• M1: 177,872 km (0.071 R)
• M2: 641,027 km (0.107 R)
• M3: 1,309,879 km (0.096 R)
• M4: 2,034,082 km (0.053 R)
• M5: 2,965,778 km (0.066 R)
• M6: 4,091,203 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.5

Radius: 12.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.67 AU - 0.87 AU

Year: 466 Days

Day: 7.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,209,521 km

• M1: 150,645 km (0.104 R)
• M2: 544,985 km (0.059 R)
• M3: 923,168 km (0.109 R)
• M4: 1,449,155 km (0.084 R)
• M5: 1,868,178 km (0.115 R)
• M6: 2,597,468 km (0.037 R)
• M7: 3,388,392 km (0.031 R)
• M8: 3,886,403 km (0.066 R)
• M9: 4,815,256 km (0.113 R)
• M10: 5,251,932 km (0.116 R)
• M11: 5,766,100 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.9

Radius: 8.3

Gravity: 10.17 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.94 AU - 1.14 AU

Year: 732 Days

Day: 5.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,209,521 km

• M1: 104,270 km (0.072 R)
• M2: 406,009 km (0.118 R)
• M3: 748,737 km (0.086 R)
• M4: 1,020,856 km (0.062 R)
• M5: 1,367,474 km (0.108 R)
• M6: 1,774,829 km (0.05 R)
• M7: 2,171,114 km (0.057 R)
• M8: 2,514,591 km (0.068 R)
• M9: 2,834,132 km (0.04 R)
• M10: 3,155,169 km (0.076 R)
• M11: 3,597,530 km (0.091 R)
• M12: 3,914,976 km (0.11 R)
• M13: 4,219,857 km (0.12 R)
• M14: 5,469,747 km (0.095 R)
• M15: 6,029,093 km (0.077 R)
• M16: 6,374,365 km (0.116 R)
• M17: 6,732,951 km (0.092 R)
• M18: 6,994,000 km (0.084 R)
• M19: 7,421,251 km (0.101 R)
• M20: 8,082,623 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.5

Radius: 10

Gravity: 9.6 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.08 AU - 1.52 AU

Year: 1023 Days

Day: 9.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,209,521 km

• M1: 124,316 km (0.069 R)
• M2: 530,175 km (0.067 R)
• M3: 884,123 km (0.036 R)
• M4: 1,254,229 km (0.037 R)
• M5: 1,682,228 km (0.093 R)
• M6: 2,130,274 km (0.107 R)
• M7: 2,557,076 km (0.057 R)
• M8: 2,890,829 km (0.055 R)
• M9: 3,507,172 km (0.108 R)
• M10: 4,157,175 km (0.056 R)
• M11: 4,752,126 km (0.086 R)
• M12: 5,139,734 km (0.104 R)
• M13: 5,825,640 km (0.066 R)
• M14: 7,078,223 km (0.109 R)
• M15: 7,507,420 km (0.107 R)
• M16: 7,953,969 km (0.064 R)
• M17: 9,341,041 km (0.112 R)
• M18: 9,703,965 km (0.093 R)
• M19: 10,685,477 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.6

Radius: 11.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.98 AU - 2.84 AU

Year: 2582 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,209,521 km

• M1: 146,756 km (0.116 R)
• M2: 573,259 km (0.085 R)
• M3: 1,000,511 km (0.047 R)
• M4: 1,390,063 km (0.049 R)
• M5: 1,811,630 km (0.108 R)
• M6: 2,283,163 km (0.046 R)
• M7: 2,740,483 km (0.092 R)
• M8: 3,429,980 km (0.086 R)
• M9: 4,455,773 km (0.092 R)
• M10: 5,303,245 km (0.085 R)
• M11: 6,018,622 km (0.116 R)
• M12: 6,621,351 km (0.118 R)
• M13: 7,211,216 km (0.092 R)
• M14: 8,734,421 km (0.102 R)
• M15: 9,732,837 km (0.058 R)
• M16: 10,360,700 km (0.058 R)
• M17: 11,085,801 km (0.105 R)
• M18: 13,425,362 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.9

Radius: 4.6

Gravity: 19.99 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.36 AU - 10.3 AU

Year: 16595 Days

Day: 16.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,209,521 km

• M1: 59,839 km (0.116 R)
• M2: 625,170 km (0.065 R)
• M3: 798,853 km (0.059 R)
• M4: 1,157,289 km (0.06 R)
• M5: 1,494,782 km (0.051 R)
• M6: 1,826,590 km (0.069 R)
• M7: 2,383,692 km (0.075 R)
• M8: 3,318,679 km (0.117 R)
• M9: 3,499,842 km (0.112 R)
• M10: 5,161,725 km (0.066 R)
• M11: 5,440,725 km (0.101 R)
• M12: 8,422,211 km (0.086 R)
• M13: 11,795,044 km (0.026 R)
• M14: 15,752,656 km (0.053 R)
• M15: 17,556,208 km (0.062 R)
• M16: 22,199,127 km (0.095 R)
• M17: 25,145,756 km (0.106 R)
• M18: 32,149,181 km (0.065 R)
• M19: 39,004,952 km (0.08 R)
• M20: 42,842,137 km (0.074 R)
• M21: 49,213,062 km (0.068 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 15,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit