🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.49 AU - 0.57 AU

Year: 245 Days

Day: 35.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,243,614 km

• M1: 124,017 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.54 AU - 0.66 AU

Year: 296 Days

Day: 19.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,243,614 km

• M1: 121,623 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536

Radius: 10.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.61 AU - 0.87 AU

Year: 405 Days

Day: 5.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,243,614 km

• M1: 128,056 km (0.118 R)
• M2: 465,549 km (0.066 R)
• M3: 884,273 km (0.115 R)
• M4: 1,236,127 km (0.115 R)
• M5: 1,614,909 km (0.115 R)
• M6: 1,969,007 km (0.112 R)
• M7: 2,410,770 km (0.081 R)
• M8: 2,847,147 km (0.095 R)
• M9: 3,483,985 km (0.114 R)
• M10: 4,849,963 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.9

Radius: 11.2

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.71 AU - 1.09 AU

Year: 543 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,243,614 km

• M1: 139,276 km (0.069 R)
• M2: 546,631 km (0.043 R)
• M3: 1,054,366 km (0.083 R)
• M4: 1,462,469 km (0.093 R)
• M5: 1,927,718 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989

Radius: 12.1

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.2 AU - 1.4 AU

Year: 942 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,243,614 km

• M1: 150,495 km (0.106 R)
• M2: 526,884 km (0.048 R)
• M3: 994,227 km (0.116 R)
• M4: 1,452,745 km (0.039 R)
• M5: 2,052,932 km (0.093 R)
• M6: 3,494,457 km (0.046 R)
• M7: 4,162,561 km (0.093 R)
• M8: 4,635,888 km (0.078 R)
• M9: 5,775,375 km (0.101 R)
• M10: 8,006,478 km (0.034 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.7

Radius: 7.6

Gravity: 13.26 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.79 AU - 7.41 AU

Year: 12029 Days

Day: 24.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,243,614 km

• M1: 94,546 km (0.074 R)
• M2: 622,178 km (0.064 R)
• M3: 940,971 km (0.109 R)
• M4: 1,641,687 km (0.066 R)
• M5: 2,893,821 km (0.11 R)
• M6: 3,452,120 km (0.086 R)
• M7: 3,994,263 km (0.094 R)
• M8: 5,420,529 km (0.049 R)
• M9: 7,992,565 km (0.059 R)
• M10: 11,110,783 km (0.065 R)
• M11: 14,681,535 km (0.083 R)
• M12: 15,166,980 km (0.106 R)
• M13: 17,064,180 km (0.06 R)
• M14: 21,677,479 km (0.038 R)
• M15: 22,397,793 km (0.085 R)
• M16: 24,849,403 km (0.055 R)
• M17: 25,838,095 km (0.088 R)
• M18: 27,266,157 km (0.111 R)
• M19: 29,505,637 km (0.107 R)
• M20: 29,945,754 km (0.107 R)
• M21: 34,468,546 km (0.11 R)
• M22: 46,599,886 km (0.096 R)
• M23: 46,897,736 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.9

Radius: 5.7

Gravity: 28.93 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 5.79 AU - 8.41 AU

Year: 12029 Days

Day: 20.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,243,614 km

• M1: 71,807 km (0.117 R)
• M2: 265,985 km (0.088 R)
• M3: 552,315 km (0.105 R)
• M4: 861,833 km (0.061 R)
• M5: 1,568,982 km (0.098 R)
• M6: 2,174,854 km (0.103 R)
• M7: 3,045,214 km (0.098 R)
• M8: 3,320,774 km (0.105 R)
• M9: 4,097,785 km (0.069 R)
• M10: 4,821,689 km (0.092 R)
• M11: 5,590,772 km (0.07 R)
• M12: 5,927,816 km (0.037 R)
• M13: 7,193,563 km (0.112 R)
• M14: 8,827,920 km (0.036 R)
• M15: 9,757,970 km (0.09 R)
• M16: 10,191,804 km (0.112 R)
• M17: 11,933,123 km (0.113 R)
• M18: 12,555,151 km (0.118 R)
• M19: 12,874,243 km (0.105 R)
• M20: 14,761,420 km (0.119 R)
• M21: 15,188,672 km (0.119 R)
• M22: 15,405,290 km (0.093 R)
• M23: 16,292,555 km (0.056 R)
• M24: 19,158,551 km (0.108 R)
• M25: 21,881,531 km (0.117 R)
• M26: 22,436,838 km (0.088 R)
• M27: 27,434,903 km (0.076 R)
• M28: 28,956,762 km (0.115 R)
• M29: 48,471,206 km (0.082 R)
• M30: 51,498,768 km (0.065 R)
• M31: 54,481,001 km (0.105 R)
• M32: 56,531,839 km (0.113 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 10,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit