🌌 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: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.57 AU - 0.63 AU

Year: 167 Days

Day: 23.6 Hours

Environment

Temp: 226 °C

Axial Tilt: 21.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.55 AU - 0.83 AU

Year: 206 Days

Day: 35 Hours

Environment

Temp: 167 °C

Axial Tilt: 46.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,584,584 km

• M1: 62,083 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.4 AU - 4.52 AU

Year: 3390 Days

Day: 46.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.88 AU - 5.42 AU

Year: 3609 Days

Day: 22.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,584,584 km

• M1: 28,124 km (0.108 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.27 AU - 5.55 AU

Year: 3916 Days

Day: 15.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 4.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.3

Radius: 12.3

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.55 AU - 10.45 AU

Year: 10538 Days

Day: 8.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,584,584 km

• M1: 153,039 km (0.086 R)
• M2: 877,541 km (0.076 R)
• M3: 1,275,322 km (0.1 R)
• M4: 1,797,418 km (0.113 R)
• M5: 2,284,808 km (0.056 R)
• M6: 3,215,457 km (0.096 R)
• M7: 3,768,221 km (0.089 R)
• M8: 6,254,089 km (0.059 R)
• M9: 8,437,320 km (0.075 R)
• M10: 8,954,929 km (0.113 R)
• M11: 9,911,906 km (0.064 R)
• M12: 13,423,567 km (0.065 R)
• M13: 13,951,198 km (0.052 R)
• M14: 15,110,731 km (0.097 R)
• M15: 21,173,783 km (0.116 R)
• M16: 21,649,205 km (0.102 R)
• M17: 24,219,446 km (0.118 R)
• M18: 25,266,931 km (0.049 R)
• M19: 30,058,102 km (0.112 R)
• M20: 31,063,848 km (0.074 R)
• M21: 31,988,064 km (0.068 R)
• M22: 33,783,687 km (0.028 R)
• M23: 36,772,204 km (0.06 R)
• M24: 37,344,416 km (0.043 R)
• M25: 38,389,207 km (0.09 R)
• M26: 39,692,653 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.5

Radius: 6.4

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 12.92 AU - 16.72 AU

Year: 20533 Days

Day: 16.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,584,584 km

• M1: 80,484 km (0.034 R)
• M2: 653,743 km (0.086 R)
• M3: 1,567,486 km (0.075 R)
• M4: 1,849,030 km (0.107 R)
• M5: 4,592,954 km (0.098 R)
• M6: 5,987,954 km (0.114 R)
• M7: 9,628,269 km (0.059 R)
• M8: 10,575,073 km (0.084 R)
• M9: 11,731,315 km (0.113 R)
• M10: 12,599,731 km (0.108 R)
• M11: 17,593,458 km (0.097 R)
• M12: 23,051,685 km (0.091 R)
• M13: 28,715,311 km (0.089 R)
• M14: 29,633,094 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.7

Radius: 3.6

Gravity: 43.26 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 14.41 AU - 16.11 AU

Year: 21454 Days

Day: 20.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,584,584 km

• M1: 44,730 km (0.104 R)
• M2: 249,380 km (0.086 R)
• M3: 424,110 km (0.119 R)
• M4: 696,378 km (0.047 R)
• M5: 1,195,586 km (0.117 R)
• M6: 1,806,843 km (0.111 R)
• M7: 1,938,938 km (0.115 R)
• M8: 2,330,436 km (0.086 R)
• M9: 2,872,279 km (0.107 R)
• M10: 3,026,515 km (0.055 R)
• M11: 4,569,168 km (0.109 R)
• M12: 4,815,256 km (0.119 R)
• M13: 5,449,850 km (0.03 R)
• M14: 7,159,156 km (0.038 R)
• M15: 7,300,226 km (0.117 R)
• M16: 9,195,482 km (0.099 R)
• M17: 10,647,030 km (0.058 R)
• M18: 11,913,077 km (0.089 R)
• M19: 14,068,184 km (0.039 R)
• M20: 15,276,037 km (0.11 R)
• M21: 21,866,721 km (0.097 R)
• M22: 24,852,545 km (0.052 R)
• M23: 28,567,957 km (0.064 R)
• M24: 30,866,529 km (0.111 R)
• M25: 37,216,061 km (0.074 R)
• M26: 42,511,825 km (0.103 R)
• M27: 43,284,798 km (0.112 R)
• M28: 43,753,188 km (0.107 R)
• M29: 53,304,713 km (0.09 R)
• M30: 64,155,346 km (0.116 R)
• M31: 65,171,864 km (0.119 R)
• M32: 65,787,010 km (0.113 R)
• M33: 66,199,152 km (0.044 R)
• M34: 66,820,582 km (0.12 R)
• M35: 68,920,337 km (0.051 R)
• M36: 72,809,882 km (0.056 R)

Kuiper Belt

Range: 30.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 10,642 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit