🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.75 AU - 0.93 AU

Year: 271 Days

Day: 21.4 Hours

Environment

Temp: 158 °C

Axial Tilt: 44.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.23 AU - 1.23 AU

Year: 479 Days

Day: 42 Hours

Environment

Temp: 17 °C

Axial Tilt: 0 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 93,268,851 km

• M1: 746,793 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.42 AU - 1.98 AU

Year: 779 Days

Day: 13.1 Hours

Environment

Temp: -27 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,268,851 km

• M1: 18,251 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.71 AU - 3.17 AU

Year: 1772 Days

Day: 15.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 16.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.16 AU - 4.76 AU

Year: 2770 Days

Day: 40.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,268,851 km

• M1: 124,615 km (0.079 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.24 AU - 5.38 AU

Year: 3708 Days

Day: 14.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.01 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.4

Radius: 13.7

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 9.35 AU - 13.05 AU

Year: 13174 Days

Day: 9.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 93,268,851 km

• M1: 170,691 km (0.082 R)
• M2: 815,009 km (0.078 R)
• M3: 1,766,003 km (0.111 R)
• M4: 2,608,538 km (0.114 R)
• M5: 8,235,512 km (0.119 R)
• M6: 8,806,827 km (0.111 R)
• M7: 9,558,107 km (0.096 R)
• M8: 10,681,288 km (0.114 R)
• M9: 14,581,155 km (0.113 R)
• M10: 15,419,053 km (0.087 R)
• M11: 17,810,823 km (0.115 R)
• M12: 18,285,497 km (0.074 R)
• M13: 19,592,534 km (0.083 R)
• M14: 23,983,381 km (0.072 R)
• M15: 29,208,835 km (0.103 R)
• M16: 30,315,709 km (0.108 R)
• M17: 35,024,003 km (0.094 R)
• M18: 40,742,830 km (0.099 R)
• M19: 41,845,516 km (0.071 R)
• M20: 42,968,099 km (0.045 R)
• M21: 45,273,252 km (0.099 R)
• M22: 46,456,123 km (0.094 R)
• M23: 51,076,303 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 830.1

Radius: 3.7

Gravity: 60.64 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 15.29 AU - 18.73 AU

Year: 24657 Days

Day: 21.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 93,268,851 km

• M1: 46,076 km (0.117 R)
• M2: 184,155 km (0.109 R)
• M3: 393,143 km (0.09 R)
• M4: 695,630 km (0.047 R)
• M5: 985,551 km (0.107 R)
• M6: 1,225,207 km (0.083 R)
• M7: 2,027,350 km (0.074 R)
• M8: 2,513,095 km (0.115 R)
• M9: 2,690,966 km (0.04 R)
• M10: 3,396,171 km (0.114 R)
• M11: 4,042,882 km (0.09 R)
• M12: 4,181,560 km (0.1 R)
• M13: 4,323,378 km (0.117 R)
• M14: 4,468,339 km (0.079 R)
• M15: 4,616,590 km (0.038 R)
• M16: 5,242,508 km (0.101 R)
• M17: 5,704,466 km (0.111 R)
• M18: 6,330,982 km (0.05 R)
• M19: 7,406,291 km (0.111 R)
• M20: 7,987,180 km (0.114 R)
• M21: 10,879,804 km (0.118 R)
• M22: 11,421,498 km (0.104 R)
• M23: 13,535,615 km (0.065 R)
• M24: 13,846,330 km (0.106 R)
• M25: 15,220,087 km (0.115 R)
• M26: 15,471,561 km (0.092 R)
• M27: 17,676,185 km (0.032 R)
• M28: 18,047,338 km (0.088 R)
• M29: 18,423,726 km (0.117 R)
• M30: 18,901,392 km (0.078 R)
• M31: 21,101,976 km (0.105 R)
• M32: 31,071,777 km (0.109 R)
• M33: 35,571,232 km (0.111 R)
• M34: 45,834,244 km (0.101 R)
• M35: 51,070,918 km (0.03 R)
• M36: 52,392,166 km (0.088 R)
• M37: 56,492,046 km (0.03 R)
• M38: 59,134,393 km (0.097 R)
• M39: 62,927,297 km (0.053 R)
• M40: 70,296,039 km (0.055 R)
• M41: 89,136,395 km (0.084 R)
• M42: 90,226,216 km (0.07 R)

Kuiper Belt

Range: 31.2 - 50.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 18,748 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit