🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.43 AU - 0.59 AU

Year: 165 Days

Day: 36.5 Hours

Environment

Temp: 7 °C

Axial Tilt: 3.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 49,664,843 km

• M1: 458,817 km (0.048 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.39 AU - 0.65 AU

Year: 170 Days

Day: 46.1 Hours

Environment

Temp: 19 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 49,664,843 km

• M1: 35,604 km (0.059 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.71 AU - 0.93 AU

Year: 336 Days

Day: 45.5 Hours

Environment

Temp: -52 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,664,843 km

• M1: 42,635 km (0.067 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.79 AU - 0.89 AU

Year: 349 Days

Day: 14.5 Hours

Environment

Temp: -60 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.24 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 10.9

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.42 AU - 3.84 AU

Year: 3133 Days

Day: 5.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,664,843 km

• M1: 136,732 km (0.079 R)
• M2: 505,342 km (0.111 R)
• M3: 1,181,674 km (0.066 R)
• M4: 2,705,477 km (0.113 R)
• M5: 3,219,197 km (0.109 R)
• M6: 3,776,897 km (0.105 R)
• M7: 5,548,286 km (0.074 R)
• M8: 6,122,891 km (0.09 R)
• M9: 7,327,154 km (0.103 R)
• M10: 8,190,633 km (0.091 R)
• M11: 8,827,172 km (0.108 R)
• M12: 9,765,749 km (0.118 R)
• M13: 10,199,284 km (0.039 R)
• M14: 11,533,846 km (0.083 R)
• M15: 11,973,963 km (0.117 R)
• M16: 16,564,972 km (0.089 R)
• M17: 17,012,569 km (0.09 R)
• M18: 17,990,341 km (0.034 R)
• M19: 18,582,898 km (0.118 R)
• M20: 19,495,894 km (0.113 R)
• M21: 19,994,952 km (0.033 R)
• M22: 21,875,846 km (0.109 R)
• M23: 22,550,981 km (0.119 R)
• M24: 23,031,789 km (0.099 R)
• M25: 23,519,478 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.8

Radius: 12.5

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 6.39 AU - 8.09 AU

Year: 8826 Days

Day: 8.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 49,664,843 km

• M1: 155,432 km (0.081 R)
• M2: 695,929 km (0.058 R)
• M3: 1,290,730 km (0.113 R)
• M4: 1,706,313 km (0.117 R)
• M5: 2,230,055 km (0.099 R)
• M6: 3,831,501 km (0.062 R)
• M7: 4,593,702 km (0.089 R)
• M8: 5,198,077 km (0.054 R)
• M9: 5,753,085 km (0.112 R)
• M10: 6,529,797 km (0.1 R)
• M11: 7,176,958 km (0.12 R)
• M12: 8,206,042 km (0.1 R)
• M13: 9,472,537 km (0.114 R)
• M14: 10,505,062 km (0.093 R)
• M15: 11,720,544 km (0.097 R)
• M16: 14,811,236 km (0.084 R)
• M17: 15,396,463 km (0.077 R)
• M18: 17,316,552 km (0.083 R)
• M19: 17,747,992 km (0.101 R)
• M20: 18,260,365 km (0.119 R)
• M21: 21,544,786 km (0.1 R)
• M22: 22,128,218 km (0.105 R)
• M23: 23,764,669 km (0.029 R)
• M24: 26,701,126 km (0.087 R)
• M25: 27,862,155 km (0.097 R)
• M26: 30,597,252 km (0.063 R)
• M27: 34,515,969 km (0.1 R)
• M28: 36,595,529 km (0.098 R)
• M29: 40,119,606 km (0.106 R)
• M30: 45,615,682 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.2

Radius: 14.8

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 6.78 AU - 7.76 AU

Year: 8880 Days

Day: 13.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,664,843 km

• M1: 184,005 km (0.12 R)
• M2: 740,210 km (0.043 R)
• M3: 1,574,218 km (0.115 R)
• M4: 3,256,746 km (0.1 R)
• M5: 3,876,230 km (0.08 R)
• M6: 5,486,951 km (0.116 R)
• M7: 7,181,595 km (0.056 R)
• M8: 8,193,924 km (0.061 R)
• M9: 9,299,452 km (0.114 R)
• M10: 9,938,535 km (0.076 R)
• M11: 11,195,755 km (0.096 R)
• M12: 12,853,449 km (0.059 R)
• M13: 14,933,159 km (0.114 R)
• M14: 15,811,149 km (0.06 R)
• M15: 17,448,647 km (0.101 R)
• M16: 19,591,636 km (0.098 R)
• M17: 20,892,240 km (0.06 R)
• M18: 22,773,733 km (0.101 R)
• M19: 24,952,476 km (0.114 R)
• M20: 25,900,179 km (0.117 R)
• M21: 27,766,711 km (0.098 R)
• M22: 28,681,502 km (0.104 R)
• M23: 30,250,784 km (0.051 R)
• M24: 31,002,513 km (0.119 R)
• M25: 32,879,817 km (0.089 R)
• M26: 34,134,195 km (0.034 R)
• M27: 35,302,106 km (0.026 R)
• M28: 37,103,713 km (0.107 R)
• M29: 38,089,413 km (0.08 R)
• M30: 41,676,770 km (0.092 R)
• M31: 47,327,530 km (0.08 R)
• M32: 47,904,829 km (0.032 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 18,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit