🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.92 AU - 1 AU

Year: 360 Days

Day: 45.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 45.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 91,997,668 km

• M1: 88,113 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.88 AU - 1.14 AU

Year: 389 Days

Day: 28.2 Hours

Environment

Temp: 22 °C

Axial Tilt: 19.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.07 AU - 1.67 AU

Year: 614 Days

Day: 46.8 Hours

Environment

Temp: -47 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,997,668 km

• M1: 47,423 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.15 AU - 1.69 AU

Year: 648 Days

Day: 30.2 Hours

Environment

Temp: -40 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,997,668 km

• M1: 41,887 km (0.059 R)
• M2: 302,636 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.29 AU - 1.97 AU

Year: 797 Days

Day: 44.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.81 AU - 3.15 AU

Year: 1970 Days

Day: 12.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,997,668 km

• M1: 116,088 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.2

Radius: 14.3

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.97 AU - 12.63 AU

Year: 14544 Days

Day: 10.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 91,997,668 km

• M1: 178,021 km (0.103 R)
• M2: 675,135 km (0.105 R)
• M3: 1,321,996 km (0.05 R)
• M4: 2,294,682 km (0.119 R)
• M5: 2,905,340 km (0.115 R)
• M6: 4,185,449 km (0.103 R)
• M7: 4,903,968 km (0.107 R)
• M8: 5,703,718 km (0.108 R)
• M9: 7,924,798 km (0.119 R)
• M10: 9,128,163 km (0.109 R)
• M11: 11,956,909 km (0.03 R)
• M12: 14,004,904 km (0.091 R)
• M13: 16,502,590 km (0.054 R)
• M14: 20,392,733 km (0.108 R)
• M15: 29,153,334 km (0.089 R)
• M16: 33,799,844 km (0.058 R)
• M17: 35,034,325 km (0.091 R)
• M18: 37,201,550 km (0.081 R)
• M19: 41,942,755 km (0.115 R)
• M20: 42,651,400 km (0.074 R)
• M21: 51,789,885 km (0.119 R)
• M22: 54,935,480 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98

Radius: 4.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 13.3 AU - 16.52 AU

Year: 22044 Days

Day: 21.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,997,668 km

• M1: 58,194 km (0.058 R)
• M2: 433,385 km (0.104 R)
• M3: 735,872 km (0.093 R)
• M4: 2,136,258 km (0.117 R)
• M5: 3,596,034 km (0.04 R)
• M6: 3,973,170 km (0.063 R)
• M7: 5,649,264 km (0.093 R)
• M8: 5,917,045 km (0.105 R)
• M9: 8,678,023 km (0.111 R)
• M10: 9,447,554 km (0.108 R)
• M11: 9,921,032 km (0.08 R)
• M12: 10,409,917 km (0.089 R)
• M13: 14,354,215 km (0.109 R)
• M14: 28,174,066 km (0.111 R)
• M15: 31,073,572 km (0.114 R)
• M16: 31,802,114 km (0.106 R)
• M17: 32,012,448 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 571.2

Radius: 4.2

Gravity: 32.38 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 15.28 AU - 20.62 AU

Year: 29118 Days

Day: 20.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,997,668 km

• M1: 52,509 km (0.093 R)
• M2: 562,039 km (0.067 R)
• M3: 1,763,310 km (0.084 R)
• M4: 2,049,042 km (0.116 R)
• M5: 3,093,385 km (0.116 R)
• M6: 3,602,616 km (0.104 R)
• M7: 4,270,870 km (0.113 R)
• M8: 5,718,827 km (0.094 R)
• M9: 6,719,338 km (0.118 R)
• M10: 7,672,875 km (0.108 R)
• M11: 8,827,920 km (0.114 R)
• M12: 10,157,247 km (0.087 R)
• M13: 10,672,013 km (0.111 R)
• M14: 11,683,893 km (0.116 R)
• M15: 13,205,602 km (0.077 R)
• M16: 16,460,254 km (0.114 R)
• M17: 17,899,236 km (0.064 R)
• M18: 21,128,006 km (0.116 R)
• M19: 26,969,654 km (0.083 R)
• M20: 53,581,320 km (0.083 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 17,587 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit