🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.73 AU - 1.03 AU

Year: 293 Days

Day: 15.7 Hours

Environment

Temp: 137 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.57 AU - 1.85 AU

Year: 793 Days

Day: 24.8 Hours

Environment

Temp: -29 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.47 AU - 3.85 AU

Year: 1993 Days

Day: 26.5 Hours

Environment

Temp: -96 °C

Axial Tilt: 90.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,650,151 km

• M1: 619,485 km (0.117 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.97 AU - 4.21 AU

Year: 2413 Days

Day: 42.9 Hours

Environment

Temp: -108 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.97 AU - 6.13 AU

Year: 4026 Days

Day: 16.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.3

Radius: 11.1

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.79 AU - 6.25 AU

Year: 5240 Days

Day: 9 Hours

Environment

Temp: -143 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 97,650,151 km

• M1: 138,079 km (0.113 R)
• M2: 669,301 km (0.077 R)
• M3: 2,236,189 km (0.108 R)
• M4: 3,288,610 km (0.098 R)
• M5: 4,644,715 km (0.116 R)
• M6: 5,086,028 km (0.084 R)
• M7: 6,196,942 km (0.094 R)
• M8: 6,763,769 km (0.078 R)
• M9: 9,537,911 km (0.098 R)
• M10: 9,931,204 km (0.076 R)
• M11: 11,263,074 km (0.051 R)
• M12: 12,710,433 km (0.042 R)
• M13: 14,025,100 km (0.06 R)
• M14: 17,500,557 km (0.1 R)
• M15: 19,001,772 km (0.106 R)
• M16: 19,752,005 km (0.07 R)
• M17: 21,311,862 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.9

Radius: 11.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 7.01 AU - 9.01 AU

Year: 8042 Days

Day: 14 Hours

Environment

Temp: -159 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 97,650,151 km

• M1: 144,960 km (0.058 R)
• M2: 808,876 km (0.073 R)
• M3: 3,343,064 km (0.084 R)
• M4: 4,812,863 km (0.026 R)
• M5: 6,119,450 km (0.057 R)
• M6: 7,188,626 km (0.082 R)
• M7: 8,008,273 km (0.105 R)
• M8: 9,833,517 km (0.076 R)
• M9: 16,423,752 km (0.096 R)
• M10: 18,334,715 km (0.11 R)
• M11: 19,638,760 km (0.097 R)
• M12: 26,011,180 km (0.064 R)
• M13: 32,483,831 km (0.059 R)
• M14: 33,959,913 km (0.058 R)
• M15: 34,932,300 km (0.118 R)
• M16: 37,273,057 km (0.12 R)
• M17: 39,243,112 km (0.057 R)
• M18: 39,716,589 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.8

Radius: 14.8

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.74 AU - 9.84 AU

Year: 9245 Days

Day: 12 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 97,650,151 km

• M1: 190,438 km (0.075 R)
• M2: 836,252 km (0.044 R)
• M3: 1,315,414 km (0.112 R)
• M4: 2,031,838 km (0.117 R)
• M5: 3,125,249 km (0.108 R)
• M6: 3,805,022 km (0.12 R)
• M7: 4,980,113 km (0.117 R)
• M8: 6,179,439 km (0.044 R)
• M9: 6,994,448 km (0.099 R)
• M10: 7,641,908 km (0.111 R)
• M11: 8,539,196 km (0.081 R)
• M12: 10,740,828 km (0.081 R)
• M13: 11,867,300 km (0.107 R)
• M14: 13,644,822 km (0.1 R)
• M15: 17,378,037 km (0.072 R)
• M16: 18,002,009 km (0.112 R)
• M17: 18,857,111 km (0.058 R)
• M18: 21,904,270 km (0.085 R)
• M19: 23,882,702 km (0.101 R)
• M20: 26,157,786 km (0.045 R)
• M21: 28,958,408 km (0.093 R)
• M22: 33,101,521 km (0.094 R)
• M23: 39,496,231 km (0.07 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.7

Radius: 11.9

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.86 AU - 11.62 AU

Year: 11625 Days

Day: 10.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 97,650,151 km

• M1: 148,102 km (0.109 R)
• M2: 652,247 km (0.077 R)
• M3: 1,152,652 km (0.113 R)
• M4: 2,416,006 km (0.06 R)
• M5: 3,551,902 km (0.074 R)
• M6: 5,214,533 km (0.103 R)
• M7: 5,992,741 km (0.115 R)
• M8: 6,371,224 km (0.115 R)
• M9: 9,237,070 km (0.1 R)
• M10: 15,810,999 km (0.045 R)
• M11: 17,900,133 km (0.062 R)
• M12: 21,899,632 km (0.106 R)
• M13: 22,893,561 km (0.102 R)
• M14: 28,109,141 km (0.072 R)
• M15: 29,608,560 km (0.058 R)
• M16: 31,273,734 km (0.12 R)
• M17: 33,353,294 km (0.114 R)
• M18: 34,911,356 km (0.115 R)
• M19: 36,643,101 km (0.087 R)
• M20: 39,611,123 km (0.069 R)
• M21: 44,860,362 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.3

Radius: 6.2

Gravity: 16.37 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 17.37 AU - 21.45 AU

Year: 30337 Days

Day: 17 Hours

Environment

Temp: -187 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 97,650,151 km

• M1: 82,877 km (0.053 R)
• M2: 306,676 km (0.063 R)
• M3: 636,689 km (0.112 R)
• M4: 955,182 km (0.069 R)
• M5: 1,188,555 km (0.059 R)
• M6: 2,196,097 km (0.112 R)
• M7: 2,456,846 km (0.113 R)
• M8: 2,900,254 km (0.076 R)
• M9: 3,126,895 km (0.058 R)
• M10: 3,457,656 km (0.087 R)
• M11: 4,516,659 km (0.097 R)
• M12: 5,909,714 km (0.069 R)
• M13: 6,703,929 km (0.092 R)
• M14: 7,357,822 km (0.094 R)
• M15: 8,275,904 km (0.061 R)
• M16: 10,600,356 km (0.069 R)
• M17: 13,020,251 km (0.092 R)
• M18: 13,327,226 km (0.112 R)
• M19: 14,439,635 km (0.053 R)
• M20: 17,120,878 km (0.088 R)
• M21: 20,423,849 km (0.116 R)
• M22: 21,364,371 km (0.051 R)
• M23: 22,442,822 km (0.032 R)
• M24: 23,331,434 km (0.065 R)
• M25: 26,873,163 km (0.05 R)
• M26: 28,642,158 km (0.075 R)
• M27: 29,030,963 km (0.099 R)
• M28: 31,028,693 km (0.097 R)
• M29: 34,266,888 km (0.106 R)
• M30: 35,147,272 km (0.08 R)
• M31: 39,937,545 km (0.072 R)
• M32: 41,902,812 km (0.114 R)
• M33: 55,666,714 km (0.107 R)
• M34: 57,086,847 km (0.108 R)
• M35: 68,863,041 km (0.103 R)
• M36: 74,091,188 km (0.065 R)
• M37: 74,579,176 km (0.112 R)
• M38: 79,068,159 km (0.114 R)
• M39: 83,206,485 km (0.105 R)
• M40: 85,865,139 km (0.053 R)

Kuiper Belt

Range: 30.9 - 56.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 18,671 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit