🌌 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: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.49 AU - 0.61 AU

Year: 153 Days

Day: 41.4 Hours

Environment

Temp: 154 °C

Axial Tilt: 10.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.68 AU - 0.8 AU

Year: 239 Days

Day: 20 Hours

Environment

Temp: 89 °C

Axial Tilt: 14.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 80,442,914 km

• M1: 17,952 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.85 AU - 1.21 AU

Year: 392 Days

Day: 40.1 Hours

Environment

Temp: 0 °C

Axial Tilt: 31.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 80,442,914 km

• M1: 168,298 km (0.07 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.11 AU - 1.51 AU

Year: 562 Days

Day: 22.8 Hours

Environment

Temp: -30 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.44 AU - 1.88 AU

Year: 801 Days

Day: 29.6 Hours

Environment

Temp: -62 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,442,914 km

• M1: 44,431 km (0.112 R)

Asteroid Belt

Center: 3.24 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.6

Radius: 12.6

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.62 AU - 6 AU

Year: 3953 Days

Day: 6.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,442,914 km

• M1: 156,779 km (0.071 R)
• M2: 749,785 km (0.105 R)
• M3: 1,403,826 km (0.107 R)
• M4: 2,012,540 km (0.09 R)
• M5: 2,544,061 km (0.093 R)
• M6: 3,187,332 km (0.118 R)
• M7: 4,113,642 km (0.066 R)
• M8: 4,701,711 km (0.11 R)
• M9: 6,651,271 km (0.093 R)
• M10: 10,944,580 km (0.114 R)
• M11: 12,503,091 km (0.108 R)
• M12: 13,285,637 km (0.114 R)
• M13: 13,791,278 km (0.038 R)
• M14: 14,733,595 km (0.117 R)
• M15: 15,385,393 km (0.105 R)
• M16: 16,514,408 km (0.108 R)
• M17: 19,319,967 km (0.112 R)
• M18: 22,571,626 km (0.086 R)
• M19: 24,252,059 km (0.116 R)
• M20: 25,314,802 km (0.087 R)
• M21: 26,250,387 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.9

Radius: 8.3

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 6.46 AU - 6.48 AU

Year: 6167 Days

Day: 8.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 80,442,914 km

• M1: 103,223 km (0.073 R)
• M2: 373,396 km (0.117 R)
• M3: 705,055 km (0.087 R)
• M4: 1,876,406 km (0.06 R)
• M5: 2,177,547 km (0.114 R)
• M6: 3,038,482 km (0.057 R)
• M7: 4,087,463 km (0.106 R)
• M8: 4,430,790 km (0.083 R)
• M9: 4,969,043 km (0.045 R)
• M10: 5,660,634 km (0.058 R)
• M11: 6,058,863 km (0.118 R)
• M12: 9,118,589 km (0.097 R)
• M13: 10,360,999 km (0.1 R)
• M14: 11,000,979 km (0.098 R)
• M15: 11,397,563 km (0.113 R)
• M16: 11,987,128 km (0.073 R)
• M17: 13,878,045 km (0.114 R)
• M18: 14,445,470 km (0.07 R)
• M19: 15,244,173 km (0.106 R)
• M20: 16,071,748 km (0.076 R)
• M21: 16,813,155 km (0.109 R)
• M22: 17,162,765 km (0.075 R)
• M23: 17,696,531 km (0.098 R)
• M24: 21,405,062 km (0.082 R)
• M25: 21,954,086 km (0.074 R)
• M26: 22,302,051 km (0.097 R)
• M27: 24,170,977 km (0.099 R)
• M28: 25,601,132 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.9

Radius: 7.8

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 17.96 AU - 19.5 AU

Year: 30376 Days

Day: 15.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 80,442,914 km

• M1: 100,679 km (0.092 R)
• M2: 347,067 km (0.097 R)
• M3: 1,113,307 km (0.082 R)
• M4: 1,609,224 km (0.102 R)
• M5: 2,288,099 km (0.113 R)
• M6: 2,680,794 km (0.085 R)
• M7: 4,436,474 km (0.095 R)
• M8: 4,862,978 km (0.104 R)
• M9: 5,162,323 km (0.11 R)
• M10: 5,553,821 km (0.086 R)
• M11: 6,710,512 km (0.103 R)
• M12: 6,988,016 km (0.058 R)
• M13: 7,321,320 km (0.119 R)
• M14: 8,653,489 km (0.107 R)
• M15: 9,841,894 km (0.057 R)
• M16: 12,678,420 km (0.086 R)
• M17: 13,610,863 km (0.103 R)
• M18: 14,056,366 km (0.108 R)
• M19: 15,212,607 km (0.051 R)
• M20: 17,889,213 km (0.107 R)
• M21: 18,333,967 km (0.104 R)
• M22: 18,786,201 km (0.117 R)
• M23: 19,061,013 km (0.088 R)
• M24: 19,807,057 km (0.111 R)
• M25: 22,778,669 km (0.116 R)
• M26: 35,089,228 km (0.072 R)
• M27: 36,920,605 km (0.099 R)
• M28: 43,591,772 km (0.094 R)
• M29: 51,379,987 km (0.111 R)
• M30: 54,292,358 km (0.085 R)
• M31: 55,978,177 km (0.085 R)
• M32: 62,661,462 km (0.071 R)
• M33: 66,831,054 km (0.104 R)
• M34: 72,973,841 km (0.079 R)
• M35: 74,566,311 km (0.051 R)
• M36: 78,767,468 km (0.085 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 14,921 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit