🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.5 AU - 0.64 AU

Year: 162 Days

Day: 39 Hours

Environment

Temp: 191 °C

Axial Tilt: 26.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.53 AU - 0.71 AU

Year: 184 Days

Day: 20.7 Hours

Environment

Temp: 126 °C

Axial Tilt: 85.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 39,385,464 km

• M1: 60,886 km (0.099 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.08 AU - 1.16 AU

Year: 447 Days

Day: 17.7 Hours

Environment

Temp: 8 °C

Axial Tilt: 61.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.93 AU - 1.45 AU

Year: 489 Days

Day: 44.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 28.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.34 AU - 1.44 AU

Year: 617 Days

Day: 15.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.13 AU - 3.11 AU

Year: 1598 Days

Day: 16.9 Hours

Environment

Temp: -90 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,385,464 km

• M1: 282,291 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.7

Radius: 8.1

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.75 AU - 8.07 AU

Year: 6843 Days

Day: 13.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 39,385,464 km

• M1: 100,829 km (0.093 R)
• M2: 365,318 km (0.113 R)
• M3: 801,845 km (0.119 R)
• M4: 1,228,199 km (0.115 R)
• M5: 1,574,667 km (0.115 R)
• M6: 1,985,912 km (0.111 R)
• M7: 3,730,672 km (0.113 R)
• M8: 4,013,412 km (0.119 R)
• M9: 4,438,569 km (0.084 R)
• M10: 5,232,934 km (0.105 R)
• M11: 6,281,166 km (0.068 R)
• M12: 7,065,657 km (0.09 R)
• M13: 7,389,836 km (0.085 R)
• M14: 8,583,178 km (0.088 R)
• M15: 9,077,898 km (0.102 R)
• M16: 14,769,947 km (0.041 R)
• M17: 15,661,850 km (0.091 R)
• M18: 17,552,468 km (0.059 R)
• M19: 18,349,525 km (0.094 R)
• M20: 19,101,255 km (0.074 R)
• M21: 19,590,290 km (0.092 R)
• M22: 20,087,553 km (0.097 R)
• M23: 20,739,202 km (0.105 R)
• M24: 22,778,969 km (0.088 R)
• M25: 23,487,614 km (0.082 R)
• M26: 26,212,090 km (0.091 R)
• M27: 26,903,083 km (0.115 R)
• M28: 31,402,239 km (0.107 R)
• M29: 32,575,984 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 11.1

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.81 AU - 9.93 AU

Year: 9952 Days

Day: 6.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,385,464 km

• M1: 145,110 km (0.112 R)
• M2: 628,012 km (0.114 R)
• M3: 1,185,114 km (0.114 R)
• M4: 1,613,563 km (0.029 R)
• M5: 2,331,333 km (0.032 R)
• M6: 3,111,785 km (0.078 R)
• M7: 3,760,442 km (0.103 R)
• M8: 4,249,627 km (0.086 R)
• M9: 5,764,604 km (0.089 R)
• M10: 8,830,762 km (0.117 R)
• M11: 9,195,632 km (0.09 R)
• M12: 9,869,420 km (0.092 R)
• M13: 11,746,724 km (0.059 R)
• M14: 12,540,191 km (0.118 R)
• M15: 15,136,013 km (0.076 R)
• M16: 20,648,246 km (0.062 R)
• M17: 21,004,738 km (0.112 R)
• M18: 21,877,043 km (0.113 R)
• M19: 22,397,045 km (0.09 R)
• M20: 23,384,541 km (0.114 R)
• M21: 24,400,759 km (0.033 R)
• M22: 27,197,641 km (0.077 R)
• M23: 30,019,057 km (0.113 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.7

Radius: 11.9

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 8.59 AU - 10.63 AU

Year: 11223 Days

Day: 7.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,385,464 km

• M1: 147,952 km (0.069 R)
• M2: 657,183 km (0.11 R)
• M3: 1,261,260 km (0.067 R)
• M4: 1,703,770 km (0.071 R)
• M5: 2,267,156 km (0.073 R)
• M6: 3,096,676 km (0.093 R)
• M7: 4,195,771 km (0.032 R)
• M8: 5,261,507 km (0.032 R)
• M9: 5,729,000 km (0.045 R)
• M10: 6,224,019 km (0.098 R)
• M11: 6,676,104 km (0.108 R)
• M12: 7,414,519 km (0.101 R)
• M13: 8,880,130 km (0.075 R)
• M14: 9,499,315 km (0.102 R)
• M15: 11,224,777 km (0.079 R)
• M16: 12,594,645 km (0.118 R)
• M17: 13,320,045 km (0.102 R)
• M18: 17,852,561 km (0.103 R)
• M19: 19,420,197 km (0.086 R)
• M20: 22,421,729 km (0.065 R)
• M21: 25,367,311 km (0.114 R)
• M22: 26,796,120 km (0.112 R)
• M23: 27,345,593 km (0.1 R)
• M24: 30,801,454 km (0.102 R)
• M25: 33,051,106 km (0.117 R)
• M26: 36,515,643 km (0.109 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 20,166 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit