🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.71 AU - 0.75 AU

Year: 218 Days

Day: 30.7 Hours

Environment

Temp: 228 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 61,314,080 km

• M1: 23,786 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.78 AU - 3.34 AU

Year: 1873 Days

Day: 18.5 Hours

Environment

Temp: -95 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,314,080 km

• M1: 1,254,528 km (0.036 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.98 AU - 4.76 AU

Year: 2663 Days

Day: 32.1 Hours

Environment

Temp: -111 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.67 AU - 6.01 AU

Year: 3725 Days

Day: 37.6 Hours

Environment

Temp: -119 °C

Axial Tilt: 15.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.1

Radius: 8.8

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 6.5 AU - 6.94 AU

Year: 6094 Days

Day: 14.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,314,080 km

• M1: 109,954 km (0.072 R)
• M2: 439,967 km (0.118 R)
• M3: 879,336 km (0.115 R)
• M4: 1,337,555 km (0.027 R)
• M5: 1,726,659 km (0.111 R)
• M6: 2,286,155 km (0.071 R)
• M7: 2,698,596 km (0.062 R)
• M8: 3,000,784 km (0.108 R)
• M9: 4,094,344 km (0.1 R)
• M10: 4,949,446 km (0.078 R)
• M11: 6,075,918 km (0.093 R)
• M12: 8,267,826 km (0.115 R)
• M13: 8,665,157 km (0.08 R)
• M14: 10,022,609 km (0.078 R)
• M15: 10,658,998 km (0.095 R)
• M16: 10,987,216 km (0.034 R)
• M17: 11,812,397 km (0.091 R)
• M18: 14,650,867 km (0.035 R)
• M19: 16,756,757 km (0.065 R)
• M20: 19,125,340 km (0.119 R)
• M21: 19,610,635 km (0.106 R)
• M22: 22,850,476 km (0.114 R)
• M23: 25,006,182 km (0.118 R)
• M24: 27,206,617 km (0.095 R)
• M25: 28,533,251 km (0.114 R)
• M26: 32,968,977 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85

Radius: 10.1

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 10.4 AU - 11.26 AU

Year: 12469 Days

Day: 6.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,314,080 km

• M1: 126,859 km (0.118 R)
• M2: 536,009 km (0.038 R)
• M3: 1,799,064 km (0.107 R)
• M4: 2,153,761 km (0.083 R)
• M5: 14,886,634 km (0.087 R)
• M6: 17,601,087 km (0.083 R)
• M7: 20,291,754 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 618.9

Radius: 6.6

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 13.49 AU - 14.97 AU

Year: 18780 Days

Day: 19.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 61,314,080 km

• M1: 85,121 km (0.099 R)
• M2: 370,704 km (0.082 R)
• M3: 906,114 km (0.043 R)
• M4: 1,250,339 km (0.095 R)
• M5: 2,221,828 km (0.047 R)
• M6: 2,660,299 km (0.069 R)
• M7: 3,536,194 km (0.115 R)
• M8: 5,081,241 km (0.108 R)
• M9: 5,528,689 km (0.111 R)
• M10: 7,680,355 km (0.1 R)
• M11: 8,169,390 km (0.072 R)
• M12: 8,835,849 km (0.057 R)
• M13: 10,570,735 km (0.084 R)
• M14: 11,237,493 km (0.103 R)
• M15: 11,676,114 km (0.112 R)
• M16: 12,256,853 km (0.1 R)
• M17: 14,331,925 km (0.097 R)
• M18: 14,551,534 km (0.108 R)
• M19: 15,072,584 km (0.069 R)
• M20: 15,916,615 km (0.051 R)
• M21: 16,630,197 km (0.05 R)
• M22: 16,872,845 km (0.039 R)
• M23: 18,724,417 km (0.082 R)
• M24: 19,699,048 km (0.097 R)
• M25: 22,039,656 km (0.09 R)
• M26: 26,268,788 km (0.084 R)
• M27: 32,749,667 km (0.074 R)
• M28: 35,348,032 km (0.109 R)
• M29: 43,654,603 km (0.094 R)
• M30: 46,315,202 km (0.08 R)
• M31: 63,392,547 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.8

Radius: 7

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 16.32 AU - 25.32 AU

Year: 33235 Days

Day: 19.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,314,080 km

• M1: 100,979 km (0.068 R)
• M2: 372,200 km (0.109 R)
• M3: 912,397 km (0.099 R)
• M4: 2,493,497 km (0.084 R)
• M5: 5,969,254 km (0.082 R)
• M6: 6,322,904 km (0.098 R)
• M7: 8,161,162 km (0.097 R)
• M8: 8,547,873 km (0.06 R)
• M9: 9,568,280 km (0.11 R)
• M10: 9,998,374 km (0.074 R)
• M11: 12,033,204 km (0.057 R)
• M12: 17,609,614 km (0.056 R)
• M13: 24,597,181 km (0.086 R)
• M14: 37,159,812 km (0.085 R)
• M15: 41,953,975 km (0.054 R)
• M16: 57,537,286 km (0.056 R)

Kuiper Belt

Range: 31.4 - 57.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 15,342 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit