🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.51 AU - 0.73 AU

Year: 320 Days

Day: 27.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 41.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,980,270 km

• M1: 388,655 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.1

Radius: 11.9

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.74 AU - 1.18 AU

Year: 617 Days

Day: 7.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,980,270 km

• M1: 148,102 km (0.102 R)
• M2: 587,620 km (0.111 R)
• M3: 1,003,951 km (0.098 R)
• M4: 1,840,054 km (0.055 R)
• M5: 2,399,999 km (0.101 R)
• M6: 3,237,148 km (0.107 R)
• M7: 4,259,799 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615

Radius: 14.7

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.44 AU - 1.68 AU

Year: 1278 Days

Day: 10.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,980,270 km

• M1: 182,809 km (0.115 R)
• M2: 867,967 km (0.116 R)
• M3: 2,001,620 km (0.102 R)
• M4: 2,543,014 km (0.114 R)
• M5: 3,002,728 km (0.106 R)
• M6: 4,161,663 km (0.112 R)
• M7: 4,901,425 km (0.11 R)
• M8: 6,074,571 km (0.088 R)
• M9: 6,980,087 km (0.049 R)
• M10: 7,736,603 km (0.109 R)
• M11: 8,243,591 km (0.093 R)
• M12: 9,089,417 km (0.114 R)
• M13: 10,243,265 km (0.047 R)
• M14: 11,087,446 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.4

Radius: 8

Gravity: 11.93 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.73 AU - 1.77 AU

Year: 1519 Days

Day: 12.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,980,270 km

• M1: 99,632 km (0.099 R)
• M2: 498,011 km (0.076 R)
• M3: 788,231 km (0.091 R)
• M4: 1,088,923 km (0.029 R)
• M5: 1,345,633 km (0.12 R)
• M6: 1,604,886 km (0.075 R)
• M7: 1,908,570 km (0.032 R)
• M8: 2,474,947 km (0.12 R)
• M9: 2,868,539 km (0.099 R)
• M10: 3,210,071 km (0.08 R)
• M11: 4,028,671 km (0.078 R)
• M12: 4,381,123 km (0.1 R)
• M13: 5,342,290 km (0.092 R)
• M14: 5,631,462 km (0.096 R)
• M15: 6,168,668 km (0.111 R)
• M16: 6,816,726 km (0.054 R)
• M17: 8,073,199 km (0.078 R)
• M18: 9,222,110 km (0.085 R)
• M19: 9,671,802 km (0.088 R)
• M20: 10,102,344 km (0.114 R)
• M21: 10,510,896 km (0.111 R)
• M22: 10,930,668 km (0.1 R)
• M23: 11,654,871 km (0.099 R)
• M24: 11,915,770 km (0.055 R)
• M25: 12,295,299 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.4

Radius: 11.1

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.48 AU - 3.18 AU

Year: 3123 Days

Day: 13 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,980,270 km

• M1: 138,079 km (0.108 R)
• M2: 931,247 km (0.082 R)
• M3: 1,565,392 km (0.101 R)
• M4: 2,595,074 km (0.05 R)
• M5: 4,315,599 km (0.112 R)
• M6: 4,980,263 km (0.095 R)
• M7: 5,549,483 km (0.118 R)
• M8: 6,911,122 km (0.105 R)
• M9: 7,686,937 km (0.088 R)
• M10: 8,664,260 km (0.067 R)
• M11: 9,527,589 km (0.032 R)
• M12: 9,920,433 km (0.036 R)
• M13: 10,406,028 km (0.105 R)
• M14: 11,250,807 km (0.087 R)
• M15: 11,689,877 km (0.118 R)
• M16: 12,370,248 km (0.091 R)
• M17: 12,885,613 km (0.114 R)
• M18: 14,211,798 km (0.048 R)
• M19: 14,881,847 km (0.066 R)
• M20: 15,789,756 km (0.083 R)
• M21: 16,847,712 km (0.071 R)
• M22: 18,552,829 km (0.097 R)
• M23: 19,228,712 km (0.077 R)
• M24: 22,097,550 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.2

Radius: 14.3

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.71 AU - 3.03 AU

Year: 3190 Days

Day: 13.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,980,270 km

• M1: 177,872 km (0.111 R)
• M2: 891,005 km (0.072 R)
• M3: 1,823,897 km (0.107 R)
• M4: 3,392,880 km (0.044 R)
• M5: 5,659,437 km (0.105 R)
• M6: 7,809,009 km (0.052 R)
• M7: 8,470,830 km (0.104 R)
• M8: 10,645,833 km (0.108 R)
• M9: 11,822,421 km (0.059 R)
• M10: 18,049,581 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 742.7

Radius: 3.4

Gravity: 64.25 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.54 AU - 6.94 AU

Year: 10226 Days

Day: 20.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 49,980,270 km

• M1: 44,580 km (0.105 R)
• M2: 235,467 km (0.109 R)
• M3: 472,580 km (0.105 R)
• M4: 841,488 km (0.081 R)
• M5: 1,003,503 km (0.039 R)
• M6: 1,247,646 km (0.073 R)
• M7: 1,459,178 km (0.095 R)
• M8: 2,314,429 km (0.081 R)
• M9: 2,718,044 km (0.104 R)
• M10: 3,637,323 km (0.103 R)
• M11: 3,768,520 km (0.11 R)
• M12: 4,096,438 km (0.1 R)
• M13: 7,186,233 km (0.044 R)
• M14: 8,260,346 km (0.085 R)
• M15: 8,396,180 km (0.12 R)
• M16: 9,388,164 km (0.097 R)
• M17: 11,210,864 km (0.106 R)
• M18: 12,469,731 km (0.041 R)
• M19: 13,133,197 km (0.115 R)
• M20: 20,278,291 km (0.118 R)
• M21: 20,525,426 km (0.078 R)
• M22: 22,137,343 km (0.118 R)
• M23: 24,757,251 km (0.064 R)
• M24: 26,190,099 km (0.112 R)
• M25: 27,475,893 km (0.116 R)
• M26: 32,250,907 km (0.083 R)
• M27: 34,073,608 km (0.115 R)
• M28: 35,963,777 km (0.071 R)
• M29: 37,180,008 km (0.101 R)
• M30: 40,210,262 km (0.086 R)
• M31: 45,338,028 km (0.091 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: 457 - 13,052 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit