🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.56 AU - 0.58 AU

Year: 278 Days

Day: 40.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,816,473 km

• M1: 336,595 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.55 AU - 0.67 AU

Year: 308 Days

Day: 28.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.5

Radius: 12.1

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.89 AU - 1.27 AU

Year: 725 Days

Day: 12.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,816,473 km

• M1: 150,495 km (0.067 R)
• M2: 382,372 km (0.091 R)
• M3: 612,454 km (0.03 R)
• M4: 882,627 km (0.106 R)
• M5: 1,431,801 km (0.042 R)
• M6: 1,938,938 km (0.108 R)
• M7: 2,345,545 km (0.071 R)
• M8: 2,730,460 km (0.11 R)
• M9: 3,062,568 km (0.117 R)
• M10: 3,441,349 km (0.102 R)
• M11: 3,824,320 km (0.098 R)
• M12: 4,110,949 km (0.103 R)
• M13: 4,448,741 km (0.056 R)
• M14: 4,916,983 km (0.103 R)
• M15: 5,309,079 km (0.087 R)
• M16: 5,658,988 km (0.114 R)
• M17: 5,996,930 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.4

Radius: 15

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.55 AU - 1.63 AU

Year: 1295 Days

Day: 5 Hours

Environment

Temp: -171 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 91,816,473 km

• M1: 187,895 km (0.043 R)
• M2: 904,469 km (0.105 R)
• M3: 1,210,097 km (0.096 R)
• M4: 1,544,000 km (0.072 R)
• M5: 2,052,333 km (0.093 R)
• M6: 2,396,109 km (0.107 R)
• M7: 3,751,915 km (0.045 R)
• M8: 4,119,477 km (0.068 R)
• M9: 5,280,954 km (0.067 R)
• M10: 8,830,613 km (0.077 R)
• M11: 9,287,485 km (0.084 R)
• M12: 11,476,700 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.8

Radius: 14.4

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.14 AU - 3.26 AU

Year: 2865 Days

Day: 14.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,816,473 km

• M1: 191,036 km (0.11 R)
• M2: 509,530 km (0.093 R)
• M3: 1,174,642 km (0.065 R)
• M4: 1,836,912 km (0.051 R)
• M5: 2,548,699 km (0.085 R)
• M6: 3,169,979 km (0.096 R)
• M7: 4,609,110 km (0.077 R)
• M8: 4,955,579 km (0.098 R)
• M9: 6,377,208 km (0.115 R)
• M10: 7,513,104 km (0.09 R)
• M11: 9,628,568 km (0.04 R)
• M12: 11,335,031 km (0.025 R)
• M13: 13,912,752 km (0.101 R)
• M14: 16,449,931 km (0.082 R)
• M15: 17,343,480 km (0.115 R)
• M16: 17,899,086 km (0.084 R)
• M17: 18,831,081 km (0.056 R)
• M18: 20,939,364 km (0.105 R)
• M19: 21,593,854 km (0.11 R)
• M20: 22,392,707 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.2

Radius: 14.7

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.96 AU - 4.2 AU

Year: 4374 Days

Day: 12.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,816,473 km

• M1: 197,768 km (0.103 R)
• M2: 505,491 km (0.055 R)
• M3: 801,994 km (0.087 R)
• M4: 1,119,590 km (0.085 R)
• M5: 1,571,077 km (0.043 R)
• M6: 2,229,756 km (0.109 R)
• M7: 4,469,236 km (0.112 R)
• M8: 5,384,626 km (0.095 R)
• M9: 6,600,108 km (0.094 R)
• M10: 8,060,782 km (0.081 R)
• M11: 9,775,024 km (0.087 R)
• M12: 10,627,283 km (0.118 R)
• M13: 11,094,776 km (0.099 R)
• M14: 14,814,378 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.6

Radius: 3

Gravity: 103.29 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 9.5 AU - 12 AU

Year: 22758 Days

Day: 18.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 91,816,473 km

• M1: 81,680 km (0.112 R)
• M2: 314,904 km (0.078 R)
• M3: 474,225 km (0.113 R)
• M4: 1,734,887 km (0.118 R)
• M5: 2,357,513 km (0.038 R)
• M6: 2,416,305 km (0.054 R)
• M7: 3,420,705 km (0.046 R)
• M8: 3,932,030 km (0.074 R)
• M9: 4,240,501 km (0.1 R)
• M10: 5,591,370 km (0.116 R)
• M11: 6,289,394 km (0.049 R)
• M12: 8,463,500 km (0.114 R)
• M13: 9,435,437 km (0.118 R)
• M14: 9,494,378 km (0.077 R)
• M15: 11,473,857 km (0.072 R)
• M16: 11,998,048 km (0.056 R)
• M17: 12,669,892 km (0.072 R)
• M18: 13,290,275 km (0.075 R)
• M19: 13,360,137 km (0.104 R)
• M20: 13,925,467 km (0.115 R)
• M21: 15,540,676 km (0.09 R)
• M22: 18,871,173 km (0.111 R)
• M23: 20,832,251 km (0.081 R)
• M24: 27,800,520 km (0.077 R)
• M25: 30,276,365 km (0.081 R)
• M26: 31,769,352 km (0.119 R)
• M27: 33,853,250 km (0.097 R)
• M28: 39,533,182 km (0.091 R)
• M29: 40,624,349 km (0.117 R)
• M30: 41,730,326 km (0.055 R)
• M31: 41,978,210 km (0.117 R)
• M32: 42,976,775 km (0.079 R)
• M33: 47,351,616 km (0.1 R)
• M34: 48,012,988 km (0.074 R)
• M35: 49,214,857 km (0.058 R)
• M36: 51,525,546 km (0.1 R)
• M37: 54,736,215 km (0.113 R)
• M38: 57,752,557 km (0.086 R)
• M39: 58,336,288 km (0.105 R)
• M40: 59,070,066 km (0.099 R)
• M41: 64,950,908 km (0.105 R)
• M42: 69,504,966 km (0.049 R)
• M43: 69,664,736 km (0.114 R)
• M44: 78,565,810 km (0.105 R)
• M45: 87,643,109 km (0.102 R)
• M46: 89,808,389 km (0.077 R)
• M47: 90,536,033 km (0.031 R)
• M48: 91,266,669 km (0.068 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 16,150 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit