🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.91 AU - 1.13 AU

Year: 364 Days

Day: 23.2 Hours

Environment

Temp: 97 °C

Axial Tilt: 11.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.74 AU - 3.82 AU

Year: 2098 Days

Day: 18.3 Hours

Environment

Temp: -109 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,116,348 km

• M1: 473,776 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.99 AU - 4.45 AU

Year: 2533 Days

Day: 20.4 Hours

Environment

Temp: -108 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.88 AU - 4.5 AU

Year: 3028 Days

Day: 36.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 9.4

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 7.76 AU - 8.62 AU

Year: 8276 Days

Day: 12.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,116,348 km

• M1: 123,269 km (0.099 R)
• M2: 415,583 km (0.075 R)
• M3: 1,288,636 km (0.113 R)
• M4: 1,593,816 km (0.113 R)
• M5: 2,327,294 km (0.106 R)
• M6: 3,270,509 km (0.081 R)
• M7: 4,304,080 km (0.071 R)
• M8: 6,580,960 km (0.071 R)
• M9: 8,604,570 km (0.044 R)
• M10: 10,066,590 km (0.109 R)
• M11: 11,089,840 km (0.104 R)
• M12: 13,121,678 km (0.027 R)
• M13: 14,018,368 km (0.113 R)
• M14: 18,508,997 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.4

Radius: 9.7

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 6.7 AU - 9.86 AU

Year: 8413 Days

Day: 11.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 24,116,348 km

• M1: 120,875 km (0.044 R)
• M2: 541,694 km (0.076 R)
• M3: 1,323,343 km (0.12 R)
• M4: 1,900,940 km (0.088 R)
• M5: 2,657,905 km (0.078 R)
• M6: 3,158,609 km (0.089 R)
• M7: 3,673,974 km (0.094 R)
• M8: 4,064,873 km (0.083 R)
• M9: 4,592,355 km (0.108 R)
• M10: 5,224,855 km (0.039 R)
• M11: 5,688,609 km (0.051 R)
• M12: 6,770,052 km (0.05 R)
• M13: 7,824,118 km (0.066 R)
• M14: 8,349,207 km (0.105 R)
• M15: 11,487,471 km (0.094 R)
• M16: 12,542,585 km (0.109 R)
• M17: 14,244,560 km (0.068 R)
• M18: 15,212,757 km (0.06 R)
• M19: 15,586,901 km (0.079 R)
• M20: 16,095,385 km (0.105 R)
• M21: 17,482,755 km (0.035 R)
• M22: 17,893,401 km (0.101 R)
• M23: 18,240,618 km (0.085 R)
• M24: 19,236,491 km (0.048 R)
• M25: 23,336,669 km (0.109 R)
• M26: 25,284,434 km (0.041 R)
• M27: 27,430,116 km (0.108 R)
• M28: 28,358,820 km (0.061 R)
• M29: 29,888,458 km (0.112 R)
• M30: 38,024,787 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.8

Radius: 13.6

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 8.79 AU - 14.19 AU

Year: 13752 Days

Day: 10.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,116,348 km

• M1: 169,195 km (0.081 R)
• M2: 899,981 km (0.08 R)
• M3: 1,565,392 km (0.052 R)
• M4: 5,006,442 km (0.06 R)
• M5: 5,665,271 km (0.113 R)
• M6: 6,418,646 km (0.049 R)
• M7: 7,076,578 km (0.088 R)
• M8: 7,736,603 km (0.096 R)
• M9: 8,347,561 km (0.075 R)
• M10: 9,865,531 km (0.085 R)
• M11: 11,065,455 km (0.062 R)
• M12: 14,521,765 km (0.114 R)
• M13: 15,183,137 km (0.037 R)
• M14: 19,029,298 km (0.084 R)
• M15: 19,502,027 km (0.104 R)
• M16: 25,139,773 km (0.058 R)
• M17: 27,771,349 km (0.081 R)
• M18: 30,047,480 km (0.082 R)
• M19: 43,726,859 km (0.092 R)
• M20: 47,807,889 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.3

Radius: 4.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 14.57 AU - 14.71 AU

Year: 19779 Days

Day: 23.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,116,348 km

• M1: 59,690 km (0.083 R)
• M2: 243,545 km (0.116 R)
• M3: 582,085 km (0.11 R)
• M4: 776,413 km (0.113 R)
• M5: 1,542,354 km (0.102 R)
• M6: 2,325,798 km (0.114 R)
• M7: 2,687,077 km (0.111 R)
• M8: 3,580,775 km (0.069 R)
• M9: 3,784,976 km (0.115 R)
• M10: 8,853,052 km (0.09 R)
• M11: 9,534,022 km (0.085 R)
• M12: 12,469,282 km (0.095 R)
• M13: 12,797,051 km (0.098 R)
• M14: 13,469,942 km (0.104 R)
• M15: 18,428,214 km (0.091 R)

Kuiper Belt

Range: 31.1 - 46.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 14,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit