🌌 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: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.68 AU - 0.84 AU

Year: 234 Days

Day: 13.7 Hours

Environment

Temp: 191 °C

Axial Tilt: 21.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.7 AU - 0.88 AU

Year: 248 Days

Day: 25 Hours

Environment

Temp: 145 °C

Axial Tilt: 1.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.32 AU - 1.48 AU

Year: 585 Days

Day: 25 Hours

Environment

Temp: 2 °C

Axial Tilt: 11 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.13 AU - 2.57 AU

Year: 1272 Days

Day: 14.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.9 AU - 2.98 AU

Year: 1346 Days

Day: 21.1 Hours

Environment

Temp: -80 °C

Axial Tilt: 172.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 22,621,228 km

• M1: 88,263 km (0.105 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.33 AU - 3.19 AU

Year: 1619 Days

Day: 42.8 Hours

Environment

Temp: -76 °C

Axial Tilt: 42.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.14 AU - 3.5 AU

Year: 1672 Days

Day: 41.5 Hours

Environment

Temp: -88 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.13 AU - 4.67 AU

Year: 2720 Days

Day: 22.6 Hours

Environment

Temp: -105 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.64 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 17.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11

Radius: 3.4

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 17.29 AU - 17.47 AU

Year: 25584 Days

Day: 24 Hours

Environment

Temp: -194 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 22,621,228 km

• M1: 243,545 km (0.069 R)
• M2: 265,087 km (0.07 R)
• M3: 357,689 km (0.119 R)
• M4: 543,639 km (0.079 R)
• M5: 692,937 km (0.106 R)
• M6: 1,528,142 km (0.11 R)
• M7: 1,752,240 km (0.059 R)
• M8: 2,388,031 km (0.115 R)
• M9: 3,122,407 km (0.057 R)
• M10: 3,459,600 km (0.117 R)
• M11: 3,826,863 km (0.059 R)
• M12: 4,225,691 km (0.104 R)
• M13: 4,518,604 km (0.106 R)
• M14: 4,597,891 km (0.111 R)
• M15: 4,657,580 km (0.038 R)
• M16: 4,939,722 km (0.095 R)
• M17: 5,711,497 km (0.071 R)
• M18: 6,320,211 km (0.119 R)
• M19: 6,342,351 km (0.053 R)
• M20: 6,677,151 km (0.116 R)
• M21: 6,926,381 km (0.043 R)
• M22: 7,504,128 km (0.057 R)
• M23: 7,550,953 km (0.118 R)
• M24: 8,631,348 km (0.073 R)
• M25: 8,952,236 km (0.084 R)
• M26: 8,977,069 km (0.063 R)
• M27: 9,176,782 km (0.093 R)
• M28: 9,252,030 km (0.09 R)
• M29: 10,326,891 km (0.117 R)
• M30: 10,667,525 km (0.11 R)
• M31: 10,799,470 km (0.098 R)
• M32: 11,548,507 km (0.096 R)
• M33: 11,765,723 km (0.103 R)
• M34: 11,792,950 km (0.038 R)
• M35: 11,874,780 km (0.083 R)
• M36: 13,011,724 km (0.111 R)
• M37: 13,721,865 km (0.118 R)
• M38: 14,269,991 km (0.079 R)
• M39: 14,299,013 km (0.075 R)
• M40: 14,737,036 km (0.116 R)
• M41: 15,298,177 km (0.104 R)
• M42: 16,900,221 km (0.069 R)
• M43: 17,456,276 km (0.098 R)
• M44: 17,767,739 km (0.094 R)
• M45: 18,936,248 km (0.043 R)
• M46: 18,968,112 km (0.086 R)
• M47: 19,064,005 km (0.077 R)
• M48: 19,707,425 km (0.099 R)
• M49: 19,869,290 km (0.093 R)
• M50: 20,916,176 km (0.112 R)
• M51: 20,982,149 km (0.11 R)
• M52: 21,213,726 km (0.052 R)
• M53: 21,512,772 km (0.088 R)
• M54: 22,249,691 km (0.068 R)

Kuiper Belt

Range: 31.1 - 50.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 18,582 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit