🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.54 AU - 0.9 AU

Year: 261 Days

Day: 21.1 Hours

Environment

Temp: 12 °C

Axial Tilt: 18.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 55,663,135 km

• M1: 429,047 km (0.073 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.14 AU - 1.46 AU

Year: 634 Days

Day: 44.1 Hours

Environment

Temp: -77 °C

Axial Tilt: 40 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.22 AU - 1.78 AU

Year: 785 Days

Day: 21.5 Hours

Environment

Temp: -89 °C

Axial Tilt: 82.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.61 AU - 2.29 AU

Year: 1164 Days

Day: 44.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 45.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440

Radius: 10.3

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.74 AU - 4.54 AU

Year: 2969 Days

Day: 6.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,663,135 km

• M1: 130,599 km (0.065 R)
• M2: 677,828 km (0.039 R)
• M3: 1,203,964 km (0.069 R)
• M4: 1,782,459 km (0.1 R)
• M5: 2,291,540 km (0.068 R)
• M6: 2,772,797 km (0.026 R)
• M7: 3,495,055 km (0.103 R)
• M8: 4,297,049 km (0.085 R)
• M9: 5,009,733 km (0.101 R)
• M10: 5,335,109 km (0.089 R)
• M11: 6,132,316 km (0.038 R)
• M12: 6,752,997 km (0.109 R)
• M13: 8,735,020 km (0.109 R)
• M14: 11,712,915 km (0.047 R)
• M15: 13,541,150 km (0.083 R)
• M16: 13,901,233 km (0.067 R)
• M17: 14,313,973 km (0.118 R)
• M18: 15,067,797 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.9

Radius: 8.2

Gravity: 13.28 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 7.41 AU - 8.87 AU

Year: 9928 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,663,135 km

• M1: 102,026 km (0.046 R)
• M2: 410,347 km (0.114 R)
• M3: 812,017 km (0.085 R)
• M4: 1,903,783 km (0.113 R)
• M5: 2,256,235 km (0.108 R)
• M6: 2,589,539 km (0.056 R)
• M7: 3,139,760 km (0.069 R)
• M8: 3,660,211 km (0.096 R)
• M9: 4,010,420 km (0.091 R)
• M10: 4,412,389 km (0.08 R)
• M11: 6,681,191 km (0.07 R)
• M12: 8,200,656 km (0.07 R)
• M13: 8,613,845 km (0.057 R)
• M14: 9,432,445 km (0.077 R)
• M15: 10,460,631 km (0.045 R)
• M16: 14,187,563 km (0.049 R)
• M17: 17,712,089 km (0.085 R)
• M18: 18,247,948 km (0.062 R)
• M19: 19,838,922 km (0.102 R)
• M20: 21,606,570 km (0.076 R)
• M21: 26,829,630 km (0.087 R)
• M22: 27,945,929 km (0.097 R)
• M23: 29,946,651 km (0.12 R)
• M24: 31,816,026 km (0.087 R)
• M25: 33,995,817 km (0.117 R)
• M26: 34,942,771 km (0.039 R)
• M27: 38,141,772 km (0.035 R)
• M28: 45,970,977 km (0.039 R)
• M29: 46,837,298 km (0.083 R)
• M30: 47,128,565 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.3

Radius: 8.6

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.89 AU - 10.97 AU

Year: 11408 Days

Day: 7.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,663,135 km

• M1: 107,262 km (0.11 R)
• M2: 466,596 km (0.118 R)
• M3: 1,013,974 km (0.066 R)
• M4: 1,343,538 km (0.041 R)
• M5: 1,676,992 km (0.08 R)
• M6: 2,112,322 km (0.083 R)
• M7: 3,425,043 km (0.103 R)
• M8: 4,925,809 km (0.079 R)
• M9: 5,884,881 km (0.066 R)
• M10: 6,208,910 km (0.119 R)
• M11: 9,203,111 km (0.087 R)
• M12: 10,368,628 km (0.109 R)
• M13: 13,263,646 km (0.034 R)
• M14: 16,086,708 km (0.044 R)
• M15: 16,657,424 km (0.061 R)
• M16: 19,859,267 km (0.11 R)
• M17: 23,530,249 km (0.101 R)
• M18: 24,597,181 km (0.105 R)
• M19: 30,228,943 km (0.114 R)
• M20: 31,195,345 km (0.096 R)
• M21: 32,182,092 km (0.055 R)
• M22: 34,740,216 km (0.041 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.2

Radius: 9.3

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.94 AU - 11.5 AU

Year: 12955 Days

Day: 8.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,663,135 km

• M1: 117,285 km (0.091 R)
• M2: 418,425 km (0.105 R)
• M3: 1,556,267 km (0.104 R)
• M4: 1,868,477 km (0.051 R)
• M5: 2,318,169 km (0.099 R)
• M6: 3,943,998 km (0.043 R)
• M7: 5,664,673 km (0.105 R)
• M8: 6,220,429 km (0.095 R)
• M9: 8,153,533 km (0.072 R)
• M10: 9,307,082 km (0.09 R)
• M11: 13,354,153 km (0.074 R)
• M12: 14,005,203 km (0.071 R)
• M13: 15,300,122 km (0.108 R)
• M14: 17,427,853 km (0.026 R)
• M15: 20,505,081 km (0.119 R)
• M16: 23,643,644 km (0.065 R)
• M17: 25,972,135 km (0.094 R)
• M18: 33,392,938 km (0.079 R)
• M19: 48,801,219 km (0.106 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 13,010 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit