🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.47 AU - 0.67 AU

Year: 153 Days

Day: 30.5 Hours

Environment

Temp: 195 °C

Axial Tilt: 7.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.84 AU - 1.16 AU

Year: 356 Days

Day: 35.9 Hours

Environment

Temp: 67 °C

Axial Tilt: 35.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,271,391 km

• M1: 587,620 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.17 AU - 1.17 AU

Year: 451 Days

Day: 40.2 Hours

Environment

Temp: 23 °C

Axial Tilt: 6.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.46 AU - 2.08 AU

Year: 839 Days

Day: 34.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,271,391 km

• M1: 1,301,501 km (0.082 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.69 AU - 4.23 AU

Year: 2809 Days

Day: 30.9 Hours

Environment

Temp: -107 °C

Axial Tilt: 64.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,271,391 km

• M1: 93,499 km (0.072 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.66 AU - 4.52 AU

Year: 2948 Days

Day: 30.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 22.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.5

Radius: 4.5

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 13.63 AU - 14.97 AU

Year: 19275 Days

Day: 21.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,271,391 km

• M1: 56,548 km (0.035 R)
• M2: 246,986 km (0.092 R)
• M3: 549,323 km (0.086 R)
• M4: 917,933 km (0.071 R)
• M5: 2,546,605 km (0.05 R)
• M6: 3,018,885 km (0.051 R)
• M7: 4,271,318 km (0.119 R)
• M8: 8,033,854 km (0.07 R)
• M9: 14,406,574 km (0.03 R)
• M10: 17,251,477 km (0.098 R)
• M11: 22,312,074 km (0.069 R)
• M12: 27,409,621 km (0.102 R)
• M13: 30,999,222 km (0.081 R)
• M14: 35,796,526 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 974.1

Radius: 4.6

Gravity: 46.03 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 14.62 AU - 15.62 AU

Year: 20957 Days

Day: 23.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 88,271,391 km

• M1: 57,146 km (0.081 R)
• M2: 205,847 km (0.113 R)
• M3: 446,250 km (0.1 R)
• M4: 731,683 km (0.119 R)
• M5: 1,502,711 km (0.071 R)
• M6: 1,774,231 km (0.102 R)
• M7: 2,368,284 km (0.089 R)
• M8: 2,736,444 km (0.118 R)
• M9: 2,893,971 km (0.03 R)
• M10: 3,170,128 km (0.087 R)
• M11: 3,314,640 km (0.078 R)
• M12: 3,839,429 km (0.102 R)
• M13: 4,382,170 km (0.071 R)
• M14: 4,709,191 km (0.072 R)
• M15: 5,330,322 km (0.119 R)
• M16: 7,268,362 km (0.101 R)
• M17: 7,623,059 km (0.06 R)
• M18: 7,778,491 km (0.037 R)
• M19: 8,869,508 km (0.104 R)
• M20: 11,084,005 km (0.057 R)
• M21: 11,621,810 km (0.035 R)
• M22: 12,968,490 km (0.077 R)
• M23: 13,339,493 km (0.046 R)
• M24: 18,174,496 km (0.119 R)
• M25: 19,786,114 km (0.108 R)
• M26: 21,081,182 km (0.118 R)
• M27: 22,431,453 km (0.1 R)
• M28: 23,181,985 km (0.118 R)
• M29: 23,618,362 km (0.031 R)
• M30: 38,934,192 km (0.076 R)
• M31: 40,016,832 km (0.098 R)
• M32: 43,550,184 km (0.065 R)
• M33: 44,548,750 km (0.05 R)
• M34: 45,392,482 km (0.089 R)
• M35: 55,775,771 km (0.1 R)
• M36: 57,150,725 km (0.093 R)
• M37: 66,313,894 km (0.061 R)
• M38: 71,012,912 km (0.066 R)
• M39: 71,932,341 km (0.033 R)
• M40: 73,560,564 km (0.1 R)
• M41: 77,616,761 km (0.11 R)

Kuiper Belt

Range: 30.8 - 58.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 16,965 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit