🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.67 AU - 0.87 AU

Year: 235 Days

Day: 26.6 Hours

Environment

Temp: 134 °C

Axial Tilt: 29 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.84 AU - 0.84 AU

Year: 268 Days

Day: 14.7 Hours

Environment

Temp: 186 °C

Axial Tilt: 23.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.86 AU - 3.58 AU

Year: 2012 Days

Day: 27 Hours

Environment

Temp: -87 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.21 AU - 3.65 AU

Year: 2212 Days

Day: 38 Hours

Environment

Temp: -110 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,655,449 km

• M1: 282,291 km (0.101 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.21 AU - 3.69 AU

Year: 2232 Days

Day: 47 Hours

Environment

Temp: -98 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.6

Radius: 14.8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.65 AU - 8.13 AU

Year: 7718 Days

Day: 7.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,655,449 km

• M1: 184,005 km (0.12 R)
• M2: 728,841 km (0.064 R)
• M3: 1,597,107 km (0.101 R)
• M4: 2,490,206 km (0.109 R)
• M5: 4,091,951 km (0.046 R)
• M6: 5,866,331 km (0.087 R)
• M7: 6,441,984 km (0.027 R)
• M8: 11,129,334 km (0.039 R)
• M9: 11,592,489 km (0.085 R)
• M10: 12,667,948 km (0.053 R)
• M11: 16,626,457 km (0.119 R)
• M12: 21,660,724 km (0.067 R)
• M13: 25,798,901 km (0.101 R)
• M14: 26,979,527 km (0.114 R)
• M15: 28,006,367 km (0.08 R)
• M16: 29,644,464 km (0.115 R)
• M17: 30,237,619 km (0.106 R)
• M18: 35,826,596 km (0.025 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 460

Radius: 4.3

Gravity: 24.88 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 12.46 AU - 14.56 AU

Year: 17293 Days

Day: 23.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,655,449 km

• M1: 56,997 km (0.036 R)
• M2: 222,901 km (0.106 R)
• M3: 1,422,975 km (0.057 R)
• M4: 2,621,852 km (0.079 R)
• M5: 2,802,567 km (0.064 R)
• M6: 3,395,124 km (0.037 R)
• M7: 3,637,622 km (0.102 R)
• M8: 5,095,902 km (0.083 R)
• M9: 6,366,736 km (0.063 R)
• M10: 7,161,998 km (0.096 R)
• M11: 9,567,681 km (0.087 R)
• M12: 11,125,743 km (0.114 R)
• M13: 15,597,373 km (0.117 R)
• M14: 18,884,637 km (0.11 R)
• M15: 19,988,819 km (0.1 R)
• M16: 24,142,703 km (0.092 R)
• M17: 31,572,780 km (0.089 R)
• M18: 32,762,083 km (0.114 R)
• M19: 34,476,774 km (0.09 R)
• M20: 34,977,478 km (0.107 R)
• M21: 37,951,035 km (0.113 R)
• M22: 39,430,857 km (0.065 R)
• M23: 43,515,926 km (0.11 R)
• M24: 46,339,885 km (0.114 R)
• M25: 51,205,556 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.6

Radius: 6.7

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 13.37 AU - 15.63 AU

Year: 19229 Days

Day: 19.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,655,449 km

• M1: 83,326 km (0.084 R)
• M2: 355,594 km (0.092 R)
• M3: 934,687 km (0.103 R)
• M4: 1,249,741 km (0.112 R)
• M5: 1,695,393 km (0.099 R)
• M6: 2,059,813 km (0.092 R)
• M7: 2,356,765 km (0.087 R)
• M8: 2,922,694 km (0.047 R)
• M9: 3,348,000 km (0.042 R)
• M10: 4,176,324 km (0.094 R)
• M11: 6,654,861 km (0.047 R)
• M12: 11,552,845 km (0.029 R)
• M13: 15,335,427 km (0.11 R)
• M14: 19,787,610 km (0.12 R)
• M15: 20,283,676 km (0.087 R)
• M16: 26,101,986 km (0.079 R)
• M17: 26,399,087 km (0.109 R)
• M18: 27,000,321 km (0.116 R)
• M19: 27,406,031 km (0.093 R)
• M20: 30,910,361 km (0.091 R)
• M21: 32,597,675 km (0.082 R)
• M22: 34,464,058 km (0.092 R)
• M23: 36,154,514 km (0.116 R)
• M24: 36,771,456 km (0.088 R)
• M25: 37,647,052 km (0.117 R)
• M26: 39,439,534 km (0.062 R)
• M27: 43,888,425 km (0.026 R)
• M28: 45,299,881 km (0.093 R)
• M29: 46,016,754 km (0.057 R)

Kuiper Belt

Range: 31.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 16,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit