🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.75 AU - 0.79 AU

Year: 257 Days

Day: 28.3 Hours

Environment

Temp: 143 °C

Axial Tilt: 25.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.15 AU - 1.25 AU

Year: 501 Days

Day: 14.9 Hours

Environment

Temp: -22 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.01 AU - 1.57 AU

Year: 558 Days

Day: 26 Hours

Environment

Temp: -42 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,899,242 km

• M1: 287,078 km (0.111 R)
• M2: 613,950 km (0.069 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.36 AU - 3 AU

Year: 1671 Days

Day: 18.6 Hours

Environment

Temp: -106 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.02 AU - 3.24 AU

Year: 2109 Days

Day: 28.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,899,242 km

• M1: 359,783 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.1

Radius: 13.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.09 AU - 7.83 AU

Year: 7759 Days

Day: 13.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 85,899,242 km

• M1: 166,054 km (0.032 R)
• M2: 771,925 km (0.038 R)
• M3: 1,263,055 km (0.096 R)
• M4: 1,861,746 km (0.093 R)
• M5: 2,287,950 km (0.066 R)
• M6: 3,784,527 km (0.099 R)
• M7: 4,814,359 km (0.101 R)
• M8: 5,473,337 km (0.037 R)
• M9: 5,956,538 km (0.06 R)
• M10: 7,777,593 km (0.086 R)
• M11: 9,346,576 km (0.041 R)
• M12: 10,326,143 km (0.09 R)
• M13: 11,528,162 km (0.081 R)
• M14: 11,948,980 km (0.074 R)
• M15: 12,380,121 km (0.101 R)
• M16: 13,330,816 km (0.086 R)
• M17: 13,912,303 km (0.067 R)
• M18: 15,377,464 km (0.11 R)
• M19: 17,834,609 km (0.102 R)
• M20: 21,954,984 km (0.104 R)
• M21: 23,514,691 km (0.098 R)
• M22: 26,488,248 km (0.118 R)
• M23: 28,160,154 km (0.104 R)
• M24: 29,508,180 km (0.071 R)
• M25: 31,918,800 km (0.119 R)
• M26: 32,437,157 km (0.085 R)
• M27: 35,776,780 km (0.058 R)
• M28: 37,015,001 km (0.061 R)
• M29: 37,472,322 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88

Radius: 9.5

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 9.14 AU - 12.52 AU

Year: 13572 Days

Day: 5.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,899,242 km

• M1: 118,182 km (0.05 R)
• M2: 1,439,281 km (0.061 R)
• M3: 1,965,866 km (0.12 R)
• M4: 2,918,056 km (0.067 R)
• M5: 5,139,136 km (0.07 R)
• M6: 7,020,478 km (0.107 R)
• M7: 9,861,043 km (0.09 R)
• M8: 13,442,416 km (0.03 R)
• M9: 26,081,042 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.6

Radius: 6.7

Gravity: 16.88 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 14.7 AU - 15.92 AU

Year: 22812 Days

Day: 15.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 85,899,242 km

• M1: 85,271 km (0.069 R)
• M2: 294,409 km (0.098 R)
• M3: 662,719 km (0.054 R)
• M4: 997,070 km (0.066 R)
• M5: 1,523,056 km (0.045 R)
• M6: 1,772,436 km (0.116 R)
• M7: 2,377,260 km (0.095 R)
• M8: 2,975,202 km (0.112 R)
• M9: 3,280,831 km (0.076 R)
• M10: 3,607,253 km (0.109 R)
• M11: 3,987,830 km (0.061 R)
• M12: 4,645,014 km (0.077 R)
• M13: 6,858,763 km (0.047 R)
• M14: 7,594,635 km (0.097 R)
• M15: 8,007,974 km (0.104 R)
• M16: 12,715,221 km (0.045 R)
• M17: 13,077,547 km (0.107 R)
• M18: 13,446,605 km (0.04 R)
• M19: 17,529,430 km (0.104 R)
• M20: 20,338,429 km (0.092 R)
• M21: 22,897,300 km (0.119 R)
• M22: 25,320,038 km (0.059 R)
• M23: 25,893,596 km (0.111 R)
• M24: 32,113,876 km (0.05 R)
• M25: 38,202,359 km (0.058 R)
• M26: 38,653,696 km (0.072 R)
• M27: 45,352,390 km (0.07 R)
• M28: 47,572,721 km (0.048 R)
• M29: 49,151,727 km (0.056 R)
• M30: 62,851,900 km (0.116 R)
• M31: 63,480,959 km (0.111 R)
• M32: 66,907,199 km (0.115 R)
• M33: 69,556,278 km (0.072 R)
• M34: 76,960,774 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 16,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit