🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.42 AU - 0.68 AU

Year: 143 Days

Day: 34.2 Hours

Environment

Temp: 228 °C

Axial Tilt: 22.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.55 AU - 0.57 AU

Year: 147 Days

Day: 32.8 Hours

Environment

Temp: 200 °C

Axial Tilt: 21.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 56,228,531 km

• M1: 40,242 km (0.095 R)
• M2: 221,554 km (0.083 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.75 AU - 0.97 AU

Year: 279 Days

Day: 47.1 Hours

Environment

Temp: 136 °C

Axial Tilt: 2.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.83 AU - 1.17 AU

Year: 350 Days

Day: 27.6 Hours

Environment

Temp: 105 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,228,531 km

• M1: 35,604 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.17 AU - 1.59 AU

Year: 567 Days

Day: 34.8 Hours

Environment

Temp: -7 °C

Axial Tilt: 34.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 56,228,531 km

• M1: 1,157,140 km (0.097 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.68 AU - 2.04 AU

Year: 887 Days

Day: 45.7 Hours

Environment

Temp: -38 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.93 AU - 4.79 AU

Year: 3185 Days

Day: 35.6 Hours

Environment

Temp: -113 °C

Axial Tilt: 71 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.53 AU - 6.33 AU

Year: 4427 Days

Day: 40.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,228,531 km

• M1: 915,988 km (0.046 R)
• M2: 1,224,459 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.7

Radius: 8

Gravity: 14.45 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.29 AU - 7.07 AU

Year: 4736 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,228,531 km

• M1: 100,231 km (0.093 R)
• M2: 455,376 km (0.105 R)
• M3: 1,231,789 km (0.099 R)
• M4: 1,944,922 km (0.109 R)
• M5: 2,528,054 km (0.097 R)
• M6: 2,777,284 km (0.078 R)
• M7: 3,062,568 km (0.025 R)
• M8: 3,538,289 km (0.039 R)
• M9: 3,944,148 km (0.039 R)
• M10: 6,295,527 km (0.075 R)
• M11: 6,589,487 km (0.068 R)
• M12: 6,995,645 km (0.093 R)
• M13: 9,706,807 km (0.095 R)
• M14: 11,438,702 km (0.087 R)
• M15: 13,474,280 km (0.107 R)
• M16: 19,049,643 km (0.103 R)
• M17: 21,155,981 km (0.079 R)
• M18: 30,206,952 km (0.063 R)

Planet 10 - Gas Giant

Semi-Major Axis: 12.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.8

Radius: 11.4

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 12.34 AU - 12.82 AU

Year: 15610 Days

Day: 14.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,228,531 km

• M1: 141,819 km (0.111 R)
• M2: 1,127,519 km (0.082 R)
• M3: 1,509,742 km (0.051 R)
• M4: 2,326,845 km (0.079 R)
• M5: 3,392,581 km (0.107 R)
• M6: 3,951,029 km (0.03 R)
• M7: 4,790,273 km (0.074 R)
• M8: 7,802,726 km (0.101 R)
• M9: 8,875,642 km (0.103 R)
• M10: 9,678,234 km (0.082 R)
• M11: 10,693,555 km (0.102 R)
• M12: 12,195,966 km (0.11 R)
• M13: 13,379,884 km (0.054 R)
• M14: 16,120,367 km (0.119 R)
• M15: 17,238,163 km (0.059 R)
• M16: 22,777,473 km (0.078 R)
• M17: 26,249,340 km (0.114 R)
• M18: 32,443,889 km (0.114 R)
• M19: 33,384,560 km (0.091 R)
• M20: 33,742,099 km (0.079 R)
• M21: 35,320,656 km (0.096 R)
• M22: 42,966,902 km (0.115 R)
• M23: 45,840,228 km (0.083 R)
• M24: 46,578,045 km (0.036 R)
• M25: 48,992,405 km (0.109 R)
• M26: 53,742,287 km (0.033 R)
• M27: 56,060,456 km (0.117 R)

Kuiper Belt

Range: 31.4 - 47.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 11,145 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit