🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.45 AU - 0.75 AU

Year: 163 Days

Day: 36.6 Hours

Environment

Temp: 190 °C

Axial Tilt: 32.3 °

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: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.57 AU - 0.67 AU

Year: 171 Days

Day: 27.8 Hours

Environment

Temp: 166 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,809,586 km

• M1: 66,421 km (0.049 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.02 AU - 2.08 AU

Year: 1027 Days

Day: 12.5 Hours

Environment

Temp: -49 °C

Axial Tilt: 19.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.1 AU - 2.26 AU

Year: 1126 Days

Day: 12.6 Hours

Environment

Temp: -54 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2 AU - 2.38 AU

Year: 1134 Days

Day: 27.6 Hours

Environment

Temp: -60 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.76 AU - 4.02 AU

Year: 2184 Days

Day: 30 Hours

Environment

Temp: -105 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,809,586 km

• M1: 217,964 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.6

Radius: 13.4

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.7 AU - 12.3 AU

Year: 12763 Days

Day: 10.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,809,586 km

• M1: 166,652 km (0.092 R)
• M2: 711,487 km (0.117 R)
• M3: 1,895,106 km (0.066 R)
• M4: 9,111,707 km (0.087 R)
• M5: 9,695,737 km (0.116 R)
• M6: 11,509,761 km (0.092 R)
• M7: 23,348,488 km (0.12 R)
• M8: 24,075,085 km (0.074 R)
• M9: 25,726,795 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.9

Radius: 7.5

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 11.67 AU - 15.43 AU

Year: 17450 Days

Day: 24.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,809,586 km

• M1: 94,097 km (0.119 R)
• M2: 340,784 km (0.027 R)
• M3: 736,770 km (0.09 R)
• M4: 1,131,110 km (0.047 R)
• M5: 1,567,187 km (0.11 R)
• M6: 2,489,458 km (0.112 R)
• M7: 3,383,156 km (0.078 R)
• M8: 4,798,053 km (0.103 R)
• M9: 5,241,012 km (0.105 R)
• M10: 6,860,259 km (0.046 R)
• M11: 7,556,787 km (0.052 R)
• M12: 7,922,404 km (0.09 R)
• M13: 8,299,540 km (0.119 R)
• M14: 17,704,908 km (0.091 R)
• M15: 22,275,123 km (0.093 R)
• M16: 23,795,636 km (0.052 R)
• M17: 28,331,892 km (0.106 R)
• M18: 30,114,799 km (0.085 R)
• M19: 31,033,779 km (0.116 R)
• M20: 36,424,987 km (0.075 R)
• M21: 37,336,487 km (0.037 R)
• M22: 38,129,804 km (0.118 R)
• M23: 42,695,083 km (0.096 R)
• M24: 47,921,434 km (0.048 R)
• M25: 49,173,119 km (0.084 R)
• M26: 50,286,127 km (0.095 R)
• M27: 52,068,885 km (0.101 R)
• M28: 57,494,202 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.1

Radius: 4.3

Gravity: 13.69 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 10.76 AU - 16.86 AU

Year: 17954 Days

Day: 15.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 50,809,586 km

• M1: 54,304 km (0.12 R)
• M2: 1,041,500 km (0.052 R)
• M3: 1,191,697 km (0.112 R)
• M4: 1,479,373 km (0.075 R)
• M5: 3,087,550 km (0.049 R)
• M6: 3,895,080 km (0.07 R)
• M7: 4,289,270 km (0.11 R)
• M8: 6,905,887 km (0.063 R)
• M9: 7,272,850 km (0.084 R)
• M10: 7,652,679 km (0.05 R)
• M11: 9,803,747 km (0.08 R)
• M12: 10,530,793 km (0.069 R)
• M13: 10,745,017 km (0.084 R)
• M14: 11,859,820 km (0.058 R)
• M15: 12,326,565 km (0.108 R)
• M16: 13,172,691 km (0.107 R)
• M17: 14,056,814 km (0.052 R)
• M18: 15,663,346 km (0.079 R)
• M19: 19,556,032 km (0.109 R)
• M20: 20,537,843 km (0.104 R)
• M21: 24,418,860 km (0.079 R)
• M22: 25,268,726 km (0.08 R)
• M23: 27,127,330 km (0.043 R)
• M24: 27,631,176 km (0.069 R)
• M25: 30,460,370 km (0.113 R)
• M26: 33,131,889 km (0.068 R)
• M27: 36,441,443 km (0.113 R)
• M28: 36,931,526 km (0.097 R)
• M29: 39,063,295 km (0.107 R)
• M30: 43,296,167 km (0.115 R)
• M31: 44,400,199 km (0.115 R)
• M32: 45,806,419 km (0.118 R)
• M33: 45,948,687 km (0.114 R)
• M34: 48,707,571 km (0.096 R)

Kuiper Belt

Range: 31.4 - 49.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 349 - 16,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit