🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.56 AU - 0.62 AU

Year: 174 Days

Day: 13.7 Hours

Environment

Temp: 123 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 97,334,572 km

• M1: 34,707 km (0.073 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.12 AU - 1.28 AU

Year: 503 Days

Day: 22.6 Hours

Environment

Temp: -37 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,334,572 km

• M1: 460,163 km (0.052 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.67 AU - 2.75 AU

Year: 1258 Days

Day: 13.2 Hours

Environment

Temp: -95 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.59 AU - 3.09 AU

Year: 1833 Days

Day: 31 Hours

Environment

Temp: -103 °C

Axial Tilt: 21.5 °

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: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.83 AU - 4.09 AU

Year: 3017 Days

Day: 38.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 45.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.46 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.1

Radius: 11.2

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.31 AU - 10.59 AU

Year: 10252 Days

Day: 11.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 97,334,572 km

• M1: 139,276 km (0.036 R)
• M2: 525,238 km (0.11 R)
• M3: 1,019,061 km (0.065 R)
• M4: 1,692,850 km (0.055 R)
• M5: 2,104,094 km (0.068 R)
• M6: 2,903,246 km (0.092 R)
• M7: 3,275,445 km (0.116 R)
• M8: 5,230,091 km (0.107 R)
• M9: 6,810,443 km (0.118 R)
• M10: 8,360,875 km (0.115 R)
• M11: 9,023,444 km (0.032 R)
• M12: 9,517,716 km (0.074 R)
• M13: 10,134,807 km (0.082 R)
• M14: 12,266,128 km (0.047 R)
• M15: 15,365,496 km (0.116 R)
• M16: 15,715,855 km (0.108 R)
• M17: 18,085,635 km (0.078 R)
• M18: 22,339,899 km (0.053 R)
• M19: 23,062,905 km (0.089 R)
• M20: 25,422,662 km (0.067 R)
• M21: 28,356,725 km (0.113 R)
• M22: 30,507,045 km (0.114 R)
• M23: 33,815,103 km (0.086 R)
• M24: 34,408,707 km (0.112 R)
• M25: 35,251,392 km (0.118 R)
• M26: 37,481,298 km (0.057 R)
• M27: 38,502,004 km (0.06 R)
• M28: 45,305,416 km (0.102 R)
• M29: 49,902,858 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 691.4

Radius: 5.8

Gravity: 20.55 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 17.05 AU - 18.59 AU

Year: 28803 Days

Day: 19.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 97,334,572 km

• M1: 72,405 km (0.062 R)
• M2: 407,056 km (0.091 R)
• M3: 1,537,866 km (0.118 R)
• M4: 3,199,898 km (0.075 R)
• M5: 4,724,450 km (0.119 R)
• M6: 5,367,123 km (0.093 R)
• M7: 7,124,748 km (0.063 R)
• M8: 9,663,274 km (0.109 R)
• M9: 11,375,422 km (0.105 R)
• M10: 12,974,025 km (0.039 R)
• M11: 13,280,102 km (0.097 R)
• M12: 13,590,817 km (0.118 R)
• M13: 17,244,595 km (0.118 R)
• M14: 22,148,862 km (0.103 R)
• M15: 22,917,646 km (0.062 R)
• M16: 32,864,558 km (0.043 R)
• M17: 33,576,344 km (0.105 R)
• M18: 33,863,872 km (0.094 R)
• M19: 35,326,640 km (0.055 R)
• M20: 37,598,732 km (0.102 R)
• M21: 39,645,231 km (0.115 R)
• M22: 40,127,834 km (0.107 R)
• M23: 42,767,937 km (0.104 R)
• M24: 43,275,672 km (0.086 R)
• M25: 48,208,662 km (0.071 R)
• M26: 52,145,180 km (0.116 R)
• M27: 53,895,924 km (0.077 R)
• M28: 59,382,725 km (0.116 R)
• M29: 59,592,910 km (0.077 R)
• M30: 61,291,295 km (0.106 R)
• M31: 62,803,729 km (0.115 R)
• M32: 65,678,252 km (0.043 R)
• M33: 72,884,083 km (0.106 R)
• M34: 74,093,581 km (0.109 R)
• M35: 74,337,127 km (0.107 R)
• M36: 86,392,920 km (0.059 R)
• M37: 86,932,968 km (0.095 R)
• M38: 89,943,625 km (0.045 R)
• M39: 91,614,783 km (0.112 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 14,865 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit