🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.64 AU - 0.86 AU

Year: 235 Days

Day: 16.9 Hours

Environment

Temp: 145 °C

Axial Tilt: 3.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.99 AU - 1.03 AU

Year: 367 Days

Day: 43.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 15.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 79,205,768 km

• M1: 35,903 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.01 AU - 1.03 AU

Year: 373 Days

Day: 30.6 Hours

Environment

Temp: 34 °C

Axial Tilt: 20.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.26 AU - 1.52 AU

Year: 593 Days

Day: 20.8 Hours

Environment

Temp: -13 °C

Axial Tilt: 41 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.48 AU - 1.88 AU

Year: 788 Days

Day: 46.5 Hours

Environment

Temp: -46 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,205,768 km

• M1: 33,510 km (0.071 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.89 AU - 3.03 AU

Year: 1395 Days

Day: 43.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,205,768 km

• M1: 863,928 km (0.088 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.51 AU - 3.09 AU

Year: 1694 Days

Day: 43.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,205,768 km

• M1: 77,492 km (0.077 R)
• M2: 1,417,589 km (0.104 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.8 AU - 3.7 AU

Year: 2119 Days

Day: 23.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.06 AU - 4.4 AU

Year: 2605 Days

Day: 44.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 10 - Ice Giant

Semi-Major Axis: 14.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 841.2

Radius: 5

Gravity: 33.65 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 13.55 AU - 14.67 AU

Year: 19168 Days

Day: 19.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 107.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,205,768 km

• M1: 64,177 km (0.116 R)
• M2: 329,265 km (0.101 R)
• M3: 676,482 km (0.042 R)
• M4: 1,328,728 km (0.105 R)
• M5: 1,780,963 km (0.09 R)
• M6: 2,012,391 km (0.114 R)
• M7: 4,543,587 km (0.075 R)
• M8: 6,398,600 km (0.116 R)
• M9: 7,322,367 km (0.12 R)
• M10: 7,665,694 km (0.106 R)
• M11: 8,760,302 km (0.112 R)
• M12: 8,979,911 km (0.077 R)
• M13: 10,499,078 km (0.108 R)
• M14: 10,998,884 km (0.093 R)
• M15: 11,254,697 km (0.113 R)
• M16: 12,249,522 km (0.1 R)
• M17: 15,825,809 km (0.076 R)
• M18: 16,986,838 km (0.094 R)
• M19: 17,242,800 km (0.096 R)
• M20: 19,477,194 km (0.064 R)
• M21: 20,518,844 km (0.042 R)
• M22: 21,004,289 km (0.061 R)
• M23: 21,398,180 km (0.079 R)
• M24: 22,506,850 km (0.095 R)
• M25: 23,023,112 km (0.072 R)
• M26: 31,615,864 km (0.053 R)
• M27: 33,317,540 km (0.051 R)
• M28: 34,941,575 km (0.103 R)
• M29: 36,902,354 km (0.068 R)
• M30: 44,826,553 km (0.104 R)
• M31: 45,643,358 km (0.033 R)
• M32: 49,182,694 km (0.116 R)
• M33: 56,232,942 km (0.065 R)
• M34: 70,083,311 km (0.111 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 19,312 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit