🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.02 AU - 1.4 AU

Year: 489 Days

Day: 43.4 Hours

Environment

Temp: -11 °C

Axial Tilt: 17.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 87,233,938 km

• M1: 77,193 km (0.075 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.52 AU - 3.7 AU

Year: 2518 Days

Day: 43.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.78 AU - 4.12 AU

Year: 2882 Days

Day: 41.7 Hours

Environment

Temp: -121 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.9

Radius: 14.8

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.86 AU - 12.74 AU

Year: 13029 Days

Day: 6.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,233,938 km

• M1: 185,352 km (0.115 R)
• M2: 749,934 km (0.096 R)
• M3: 1,476,381 km (0.084 R)
• M4: 2,117,558 km (0.067 R)
• M5: 2,823,361 km (0.11 R)
• M6: 4,200,559 km (0.086 R)
• M7: 5,113,704 km (0.049 R)
• M8: 5,989,001 km (0.082 R)
• M9: 6,853,228 km (0.115 R)
• M10: 8,659,922 km (0.088 R)
• M11: 10,186,717 km (0.047 R)
• M12: 12,693,978 km (0.09 R)
• M13: 13,768,988 km (0.115 R)
• M14: 15,212,607 km (0.102 R)
• M15: 16,821,383 km (0.12 R)
• M16: 18,898,849 km (0.12 R)
• M17: 20,756,705 km (0.052 R)
• M18: 26,694,244 km (0.077 R)
• M19: 28,933,425 km (0.093 R)
• M20: 30,296,112 km (0.094 R)
• M21: 31,194,447 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 19.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402

Radius: 4.9

Gravity: 16.74 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 19.17 AU - 20.19 AU

Year: 32049 Days

Day: 19.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 87,233,938 km

• M1: 61,335 km (0.077 R)
• M2: 227,090 km (0.091 R)
• M3: 1,177,934 km (0.12 R)
• M4: 1,506,451 km (0.078 R)
• M5: 1,933,852 km (0.047 R)
• M6: 2,344,647 km (0.063 R)
• M7: 3,165,341 km (0.093 R)
• M8: 3,338,276 km (0.102 R)
• M9: 5,894,904 km (0.083 R)
• M10: 6,113,018 km (0.06 R)
• M11: 7,690,976 km (0.108 R)
• M12: 8,882,374 km (0.115 R)
• M13: 9,111,558 km (0.086 R)
• M14: 10,006,003 km (0.112 R)
• M15: 12,603,172 km (0.113 R)
• M16: 13,409,804 km (0.111 R)
• M17: 17,423,814 km (0.109 R)
• M18: 21,038,397 km (0.086 R)
• M19: 25,696,725 km (0.119 R)
• M20: 36,106,344 km (0.089 R)
• M21: 36,397,461 km (0.118 R)
• M22: 43,367,824 km (0.087 R)
• M23: 49,545,917 km (0.05 R)
• M24: 52,470,406 km (0.106 R)
• M25: 53,031,248 km (0.095 R)
• M26: 58,660,467 km (0.109 R)
• M27: 64,034,621 km (0.1 R)
• M28: 64,247,648 km (0.095 R)
• M29: 78,397,363 km (0.03 R)
• M30: 81,106,879 km (0.1 R)
• M31: 83,623,714 km (0.073 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: 468 - 11,229 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit