🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.59 AU - 0.89 AU

Year: 223 Days

Day: 33.6 Hours

Environment

Temp: 164 °C

Axial Tilt: 23.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,914,584 km

• M1: 315,652 km (0.096 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.06 AU - 1.14 AU

Year: 404 Days

Day: 36.2 Hours

Environment

Temp: 137 °C

Axial Tilt: 25.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.81 AU - 2.39 AU

Year: 1065 Days

Day: 12.5 Hours

Environment

Temp: -63 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,914,584 km

• M1: 788,381 km (0.086 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.15 AU - 5.63 AU

Year: 3783 Days

Day: 38.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.28 AU - 5.88 AU

Year: 4006 Days

Day: 31.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 43.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.35 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.9

Radius: 10.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 4.72 AU - 6.52 AU

Year: 4661 Days

Day: 9.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,914,584 km

• M1: 135,536 km (0.09 R)
• M2: 510,428 km (0.101 R)
• M3: 859,589 km (0.109 R)
• M4: 1,645,577 km (0.074 R)
• M5: 2,735,846 km (0.116 R)
• M6: 3,084,858 km (0.061 R)
• M7: 3,445,987 km (0.108 R)
• M8: 4,337,441 km (0.096 R)
• M9: 5,067,029 km (0.115 R)
• M10: 6,006,504 km (0.115 R)
• M11: 6,462,628 km (0.084 R)
• M12: 6,913,067 km (0.111 R)
• M13: 7,444,888 km (0.064 R)
• M14: 8,003,636 km (0.087 R)
• M15: 9,631,560 km (0.115 R)
• M16: 11,429,128 km (0.08 R)
• M17: 12,514,759 km (0.117 R)
• M18: 14,458,784 km (0.11 R)
• M19: 15,828,352 km (0.059 R)
• M20: 16,858,184 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.7

Radius: 9.8

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.29 AU - 7.79 AU

Year: 7243 Days

Day: 13.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,914,584 km

• M1: 123,568 km (0.102 R)
• M2: 573,857 km (0.052 R)
• M3: 1,381,387 km (0.09 R)
• M4: 1,789,939 km (0.12 R)
• M5: 2,616,317 km (0.073 R)
• M6: 4,630,204 km (0.114 R)
• M7: 5,151,702 km (0.079 R)
• M8: 7,703,692 km (0.081 R)
• M9: 8,856,044 km (0.075 R)
• M10: 10,876,214 km (0.12 R)
• M11: 11,669,980 km (0.046 R)
• M12: 13,894,949 km (0.118 R)
• M13: 16,713,673 km (0.042 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.3

Radius: 11

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.04 AU - 9.6 AU

Year: 9164 Days

Day: 10.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,914,584 km

• M1: 137,181 km (0.113 R)
• M2: 519,853 km (0.104 R)
• M3: 939,475 km (0.104 R)
• M4: 1,282,503 km (0.107 R)
• M5: 2,865,846 km (0.114 R)
• M6: 3,927,542 km (0.076 R)
• M7: 4,674,784 km (0.117 R)
• M8: 5,203,463 km (0.12 R)
• M9: 6,105,239 km (0.099 R)
• M10: 7,413,771 km (0.09 R)
• M11: 9,483,907 km (0.062 R)
• M12: 10,726,616 km (0.104 R)
• M13: 12,622,171 km (0.092 R)
• M14: 13,474,579 km (0.111 R)
• M15: 17,896,393 km (0.112 R)
• M16: 18,825,845 km (0.072 R)
• M17: 21,488,388 km (0.101 R)
• M18: 22,702,674 km (0.107 R)
• M19: 23,117,509 km (0.115 R)
• M20: 23,537,430 km (0.101 R)
• M21: 24,219,746 km (0.073 R)
• M22: 35,319,908 km (0.078 R)
• M23: 35,765,261 km (0.037 R)
• M24: 38,751,982 km (0.053 R)
• M25: 40,548,652 km (0.106 R)
• M26: 40,914,569 km (0.095 R)

Kuiper Belt

Range: 31.4 - 49.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 17,000 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit