🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.55 AU - 0.65 AU

Year: 166 Days

Day: 35.7 Hours

Environment

Temp: 165 °C

Axial Tilt: 21.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,686,940 km

• M1: 62,083 km (0.058 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.06 AU - 1.74 AU

Year: 590 Days

Day: 30.9 Hours

Environment

Temp: 4 °C

Axial Tilt: 22.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 58,686,940 km

• M1: 45,777 km (0.1 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.17 AU - 1.87 AU

Year: 668 Days

Day: 33.1 Hours

Environment

Temp: -35 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,686,940 km

• M1: 654,939 km (0.087 R)

Asteroid Belt

Center: 4.51 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.2

Radius: 9.8

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.71 AU - 9.27 AU

Year: 7307 Days

Day: 12.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,686,940 km

• M1: 122,221 km (0.081 R)
• M2: 1,331,870 km (0.075 R)
• M3: 3,386,746 km (0.074 R)
• M4: 3,944,746 km (0.117 R)
• M5: 5,464,511 km (0.074 R)
• M6: 6,303,157 km (0.08 R)
• M7: 7,071,940 km (0.063 R)
• M8: 7,901,909 km (0.118 R)
• M9: 8,663,811 km (0.059 R)
• M10: 12,044,125 km (0.106 R)
• M11: 12,710,433 km (0.099 R)
• M12: 13,636,744 km (0.041 R)
• M13: 14,422,132 km (0.075 R)
• M14: 14,794,631 km (0.079 R)
• M15: 17,374,596 km (0.109 R)
• M16: 18,587,685 km (0.107 R)
• M17: 19,477,493 km (0.051 R)
• M18: 20,865,013 km (0.089 R)
• M19: 22,235,031 km (0.113 R)
• M20: 24,182,496 km (0.081 R)
• M21: 25,063,777 km (0.099 R)
• M22: 26,241,262 km (0.03 R)
• M23: 26,610,918 km (0.087 R)
• M24: 27,550,093 km (0.112 R)
• M25: 36,102,604 km (0.038 R)
• M26: 38,191,289 km (0.051 R)
• M27: 40,605,051 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.6

Radius: 10.2

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.94 AU - 8.38 AU

Year: 8309 Days

Day: 6.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,686,940 km

• M1: 126,859 km (0.103 R)
• M2: 644,019 km (0.11 R)
• M3: 1,344,885 km (0.115 R)
• M4: 1,849,927 km (0.081 R)
• M5: 2,842,958 km (0.065 R)
• M6: 3,243,431 km (0.118 R)
• M7: 3,927,692 km (0.048 R)
• M8: 4,592,355 km (0.036 R)
• M9: 5,176,535 km (0.118 R)
• M10: 6,043,305 km (0.085 R)
• M11: 7,268,811 km (0.118 R)
• M12: 7,940,356 km (0.095 R)
• M13: 8,782,891 km (0.055 R)
• M14: 9,824,242 km (0.073 R)
• M15: 12,314,298 km (0.11 R)
• M16: 14,575,919 km (0.094 R)
• M17: 15,967,179 km (0.113 R)
• M18: 19,380,853 km (0.097 R)
• M19: 20,362,215 km (0.09 R)
• M20: 22,753,088 km (0.108 R)
• M21: 23,168,970 km (0.102 R)
• M22: 24,708,482 km (0.051 R)
• M23: 28,085,055 km (0.029 R)
• M24: 32,802,624 km (0.107 R)
• M25: 33,227,033 km (0.112 R)
• M26: 36,754,850 km (0.097 R)
• M27: 40,160,895 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.8

Radius: 8.7

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 9.94 AU - 13.54 AU

Year: 14338 Days

Day: 9.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,686,940 km

• M1: 108,159 km (0.044 R)
• M2: 384,167 km (0.1 R)
• M3: 1,158,187 km (0.052 R)
• M4: 2,704,730 km (0.106 R)
• M5: 3,639,267 km (0.074 R)
• M6: 4,003,389 km (0.093 R)
• M7: 5,987,954 km (0.058 R)
• M8: 6,385,436 km (0.104 R)
• M9: 8,024,280 km (0.085 R)
• M10: 10,535,280 km (0.072 R)
• M11: 11,277,286 km (0.093 R)
• M12: 18,290,883 km (0.055 R)
• M13: 21,627,813 km (0.112 R)
• M14: 23,174,505 km (0.067 R)
• M15: 28,760,939 km (0.085 R)
• M16: 36,716,703 km (0.099 R)
• M17: 43,296,915 km (0.067 R)
• M18: 46,023,785 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.1

Radius: 13.5

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 10.07 AU - 14.31 AU

Year: 15171 Days

Day: 14.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,686,940 km

• M1: 197,768 km (0.101 R)
• M2: 632,201 km (0.093 R)
• M3: 1,230,293 km (0.085 R)
• M4: 1,751,492 km (0.115 R)
• M5: 2,257,881 km (0.076 R)
• M6: 3,103,109 km (0.083 R)
• M7: 4,335,346 km (0.089 R)
• M8: 6,266,804 km (0.063 R)
• M9: 7,333,288 km (0.058 R)
• M10: 7,792,403 km (0.089 R)
• M11: 9,286,886 km (0.042 R)
• M12: 9,935,393 km (0.095 R)
• M13: 11,383,800 km (0.096 R)
• M14: 14,268,495 km (0.117 R)
• M15: 15,653,173 km (0.104 R)
• M16: 17,125,815 km (0.118 R)
• M17: 22,003,004 km (0.096 R)
• M18: 24,048,755 km (0.068 R)
• M19: 28,068,151 km (0.11 R)
• M20: 30,354,006 km (0.088 R)
• M21: 31,302,158 km (0.11 R)
• M22: 32,638,067 km (0.075 R)
• M23: 33,507,679 km (0.081 R)
• M24: 34,520,606 km (0.054 R)
• M25: 37,276,199 km (0.041 R)
• M26: 40,175,555 km (0.106 R)
• M27: 41,030,806 km (0.119 R)
• M28: 54,834,651 km (0.064 R)
• M29: 62,867,308 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.7

Radius: 5.4

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 14.44 AU - 15.68 AU

Year: 20832 Days

Day: 24.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,686,940 km

• M1: 69,114 km (0.112 R)
• M2: 386,710 km (0.054 R)
• M3: 1,039,107 km (0.101 R)
• M4: 1,246,749 km (0.096 R)
• M5: 2,290,792 km (0.117 R)
• M6: 2,623,797 km (0.098 R)
• M7: 4,166,749 km (0.076 R)
• M8: 4,727,891 km (0.074 R)
• M9: 5,128,963 km (0.12 R)
• M10: 6,389,325 km (0.069 R)
• M11: 7,220,192 km (0.099 R)
• M12: 8,453,028 km (0.065 R)
• M13: 8,695,825 km (0.113 R)
• M14: 8,893,444 km (0.093 R)
• M15: 15,362,056 km (0.104 R)
• M16: 16,920,118 km (0.074 R)
• M17: 20,433,424 km (0.093 R)
• M18: 21,764,994 km (0.097 R)
• M19: 22,498,473 km (0.107 R)
• M20: 23,533,540 km (0.115 R)
• M21: 25,095,342 km (0.109 R)
• M22: 28,315,436 km (0.112 R)
• M23: 29,410,193 km (0.08 R)
• M24: 30,646,769 km (0.04 R)
• M25: 31,104,838 km (0.09 R)
• M26: 33,222,994 km (0.098 R)
• M27: 36,449,521 km (0.057 R)
• M28: 38,138,481 km (0.073 R)
• M29: 38,935,239 km (0.109 R)
• M30: 42,658,730 km (0.098 R)
• M31: 49,223,534 km (0.049 R)
• M32: 53,237,544 km (0.105 R)

Kuiper Belt

Range: 30.8 - 60.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 11,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit