🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.52 AU - 0.76 AU

Year: 184 Days

Day: 26.3 Hours

Environment

Temp: 219 °C

Axial Tilt: 16.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.29 AU - 1.57 AU

Year: 615 Days

Day: 29.7 Hours

Environment

Temp: -24 °C

Axial Tilt: 7.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.33 AU - 2.73 AU

Year: 1448 Days

Day: 36.2 Hours

Environment

Temp: -88 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,671,983 km

• M1: 141,819 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.08 AU - 3.54 AU

Year: 2167 Days

Day: 17.9 Hours

Environment

Temp: -97 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.94 AU - 4.5 AU

Year: 2582 Days

Day: 41.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.08 AU - 5.12 AU

Year: 3551 Days

Day: 12.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.9

Radius: 13.1

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 8.78 AU - 11.76 AU

Year: 11845 Days

Day: 11.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 97,671,983 km

• M1: 169,943 km (0.066 R)
• M2: 947,254 km (0.089 R)
• M3: 1,389,016 km (0.106 R)
• M4: 2,063,104 km (0.102 R)
• M5: 2,677,054 km (0.105 R)
• M6: 3,152,326 km (0.09 R)
• M7: 6,645,885 km (0.099 R)
• M8: 8,522,740 km (0.063 R)
• M9: 13,240,908 km (0.114 R)
• M10: 14,632,617 km (0.065 R)
• M11: 22,761,615 km (0.076 R)
• M12: 32,237,444 km (0.061 R)
• M13: 33,267,574 km (0.062 R)
• M14: 34,426,060 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.3

Radius: 12.8

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 10.56 AU - 13.08 AU

Year: 14625 Days

Day: 10.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 97,671,983 km

• M1: 159,621 km (0.102 R)
• M2: 1,152,352 km (0.04 R)
• M3: 1,647,970 km (0.114 R)
• M4: 2,248,606 km (0.06 R)
• M5: 3,298,932 km (0.07 R)
• M6: 3,732,317 km (0.095 R)
• M7: 5,438,481 km (0.079 R)
• M8: 7,358,420 km (0.12 R)
• M9: 8,425,651 km (0.115 R)
• M10: 10,058,063 km (0.084 R)
• M11: 11,032,843 km (0.086 R)
• M12: 12,550,663 km (0.067 R)
• M13: 15,712,115 km (0.115 R)
• M14: 17,400,776 km (0.1 R)
• M15: 23,747,615 km (0.118 R)
• M16: 25,472,927 km (0.047 R)
• M17: 27,589,886 km (0.099 R)
• M18: 29,712,531 km (0.116 R)
• M19: 32,285,913 km (0.074 R)
• M20: 32,748,171 km (0.102 R)
• M21: 33,214,766 km (0.116 R)
• M22: 40,090,135 km (0.089 R)
• M23: 44,071,234 km (0.112 R)
• M24: 50,448,142 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.2

Radius: 7.8

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 17.17 AU - 22.39 AU

Year: 31660 Days

Day: 22.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 97,671,983 km

• M1: 103,671 km (0.113 R)
• M2: 987,795 km (0.102 R)
• M3: 1,429,108 km (0.105 R)
• M4: 2,148,525 km (0.087 R)
• M5: 3,117,769 km (0.028 R)
• M6: 6,627,036 km (0.083 R)
• M7: 6,920,846 km (0.077 R)
• M8: 7,377,868 km (0.067 R)
• M9: 7,800,931 km (0.097 R)
• M10: 8,580,036 km (0.117 R)
• M11: 9,971,147 km (0.081 R)
• M12: 11,506,470 km (0.063 R)
• M13: 12,964,451 km (0.088 R)
• M14: 13,896,146 km (0.097 R)
• M15: 14,216,435 km (0.092 R)
• M16: 14,788,797 km (0.073 R)
• M17: 15,291,446 km (0.067 R)
• M18: 16,958,863 km (0.093 R)
• M19: 17,602,583 km (0.095 R)
• M20: 18,646,926 km (0.117 R)
• M21: 19,135,064 km (0.104 R)
• M22: 24,495,305 km (0.105 R)
• M23: 28,405,195 km (0.116 R)
• M24: 36,063,259 km (0.105 R)
• M25: 36,516,691 km (0.111 R)
• M26: 37,899,573 km (0.049 R)
• M27: 49,495,503 km (0.113 R)
• M28: 58,136,874 km (0.107 R)
• M29: 63,688,002 km (0.066 R)
• M30: 68,191,048 km (0.078 R)
• M31: 70,756,053 km (0.057 R)
• M32: 73,384,487 km (0.094 R)
• M33: 83,228,027 km (0.109 R)
• M34: 84,019,849 km (0.106 R)
• M35: 84,550,473 km (0.072 R)
• M36: 89,703,072 km (0.097 R)
• M37: 91,933,726 km (0.111 R)

Kuiper Belt

Range: 30.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 14,299 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit