🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.59 AU - 0.67 AU

Year: 175 Days

Day: 29.1 Hours

Environment

Temp: 249 °C

Axial Tilt: 37.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,751,790 km

• M1: 40,242 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.59 AU - 0.83 AU

Year: 209 Days

Day: 46.3 Hours

Environment

Temp: 214 °C

Axial Tilt: 10.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.21 AU - 1.59 AU

Year: 580 Days

Day: 19.1 Hours

Environment

Temp: -6 °C

Axial Tilt: 21.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 56,751,790 km

• M1: 29,471 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.74 AU - 2.82 AU

Year: 1204 Days

Day: 46 Hours

Environment

Temp: -67 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.46 AU - 3.04 AU

Year: 1595 Days

Day: 30.3 Hours

Environment

Temp: -74 °C

Axial Tilt: 28.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,751,790 km

• M1: 175,179 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849

Radius: 9.1

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.39 AU - 6.49 AU

Year: 5065 Days

Day: 9.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,751,790 km

• M1: 113,096 km (0.067 R)
• M2: 653,743 km (0.114 R)
• M3: 1,093,860 km (0.097 R)
• M4: 1,475,334 km (0.085 R)
• M5: 2,477,191 km (0.07 R)
• M6: 2,815,282 km (0.084 R)
• M7: 4,287,026 km (0.107 R)
• M8: 4,803,887 km (0.106 R)
• M9: 9,232,732 km (0.095 R)
• M10: 12,847,914 km (0.099 R)
• M11: 14,881,248 km (0.114 R)
• M12: 17,247,139 km (0.081 R)
• M13: 19,713,559 km (0.081 R)
• M14: 23,329,489 km (0.119 R)
• M15: 23,721,585 km (0.117 R)
• M16: 26,933,152 km (0.033 R)
• M17: 28,687,336 km (0.04 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 11.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.05 AU - 7.85 AU

Year: 5731 Days

Day: 11.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,751,790 km

• M1: 150,944 km (0.112 R)
• M2: 598,691 km (0.049 R)
• M3: 1,076,805 km (0.119 R)
• M4: 1,450,052 km (0.046 R)
• M5: 2,647,882 km (0.117 R)
• M6: 3,877,726 km (0.035 R)
• M7: 4,255,162 km (0.087 R)
• M8: 4,905,464 km (0.107 R)
• M9: 5,321,346 km (0.094 R)
• M10: 6,224,468 km (0.074 R)
• M11: 6,807,451 km (0.114 R)
• M12: 8,190,035 km (0.08 R)
• M13: 9,471,789 km (0.069 R)
• M14: 10,710,160 km (0.102 R)
• M15: 12,911,792 km (0.081 R)
• M16: 14,484,664 km (0.105 R)
• M17: 17,344,826 km (0.097 R)
• M18: 18,562,702 km (0.101 R)
• M19: 21,236,465 km (0.076 R)
• M20: 25,597,692 km (0.088 R)
• M21: 26,064,138 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.8

Radius: 12.7

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 9.97 AU - 10.83 AU

Year: 11733 Days

Day: 10 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,751,790 km

• M1: 157,975 km (0.11 R)
• M2: 624,422 km (0.119 R)
• M3: 1,085,333 km (0.045 R)
• M4: 1,876,705 km (0.109 R)
• M5: 2,304,705 km (0.111 R)
• M6: 2,978,344 km (0.07 R)
• M7: 3,645,850 km (0.067 R)
• M8: 4,411,043 km (0.106 R)
• M9: 5,921,832 km (0.111 R)
• M10: 6,939,247 km (0.098 R)
• M11: 9,119,037 km (0.099 R)
• M12: 9,728,649 km (0.057 R)
• M13: 10,583,601 km (0.091 R)
• M14: 14,041,256 km (0.106 R)
• M15: 19,988,519 km (0.087 R)
• M16: 20,585,116 km (0.117 R)
• M17: 22,537,817 km (0.054 R)
• M18: 23,938,053 km (0.03 R)
• M19: 26,808,537 km (0.111 R)
• M20: 33,224,490 km (0.03 R)
• M21: 33,941,513 km (0.107 R)
• M22: 44,083,351 km (0.032 R)
• M23: 47,917,993 km (0.11 R)
• M24: 49,760,590 km (0.089 R)
• M25: 51,490,839 km (0.056 R)
• M26: 52,451,257 km (0.095 R)
• M27: 54,243,141 km (0.076 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 432 - 16,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit