🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.66 AU - 0.72 AU

Year: 168 Days

Day: 15.2 Hours

Environment

Temp: 345 °C

Axial Tilt: 35.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.71 AU - 0.81 AU

Year: 194 Days

Day: 43.6 Hours

Environment

Temp: 278 °C

Axial Tilt: 38.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.97 AU - 2.95 AU

Year: 1132 Days

Day: 14.1 Hours

Environment

Temp: 26 °C

Axial Tilt: 11.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 53,756,957 km

• M1: 67,169 km (0.117 R)
• M2: 777,460 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.54 AU - 4.88 AU

Year: 2534 Days

Day: 33.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,756,957 km

• M1: 78,539 km (0.034 R)

Asteroid Belt

Center: 8.24 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 12.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.3

Radius: 10.9

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 9.34 AU - 15.2 AU

Year: 12609 Days

Day: 12.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 53,756,957 km

• M1: 153,188 km (0.076 R)
• M2: 716,873 km (0.067 R)
• M3: 1,128,417 km (0.075 R)
• M4: 2,218,536 km (0.075 R)
• M5: 2,841,761 km (0.101 R)
• M6: 3,220,094 km (0.109 R)
• M7: 3,767,772 km (0.11 R)
• M8: 5,791,831 km (0.093 R)
• M9: 7,579,376 km (0.098 R)
• M10: 7,940,206 km (0.101 R)
• M11: 8,551,164 km (0.095 R)
• M12: 10,243,265 km (0.063 R)
• M13: 11,607,000 km (0.108 R)
• M14: 12,087,358 km (0.083 R)
• M15: 15,396,912 km (0.032 R)
• M16: 15,757,892 km (0.076 R)
• M17: 17,492,180 km (0.084 R)
• M18: 21,426,005 km (0.081 R)
• M19: 22,517,621 km (0.09 R)
• M20: 23,741,631 km (0.056 R)
• M21: 25,408,450 km (0.113 R)
• M22: 26,321,895 km (0.026 R)
• M23: 29,524,935 km (0.084 R)
• M24: 36,438,002 km (0.097 R)
• M25: 38,255,018 km (0.071 R)
• M26: 42,350,559 km (0.043 R)
• M27: 45,385,451 km (0.084 R)
• M28: 49,183,890 km (0.069 R)
• M29: 51,080,343 km (0.094 R)
• M30: 53,683,944 km (0.045 R)
• M31: 54,682,809 km (0.115 R)
• M32: 55,863,734 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 20.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 809.7

Radius: 5

Gravity: 32.39 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 18.62 AU - 23.14 AU

Year: 27991 Days

Day: 25 Hours

Environment

Temp: -165 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 53,756,957 km

• M1: 207,343 km (0.083 R)
• M2: 474,225 km (0.059 R)
• M3: 668,702 km (0.101 R)
• M4: 903,721 km (0.103 R)
• M5: 1,286,093 km (0.108 R)
• M6: 1,470,248 km (0.114 R)
• M7: 2,697,698 km (0.084 R)
• M8: 2,972,958 km (0.115 R)
• M9: 3,515,550 km (0.066 R)
• M10: 11,049,000 km (0.112 R)
• M11: 11,468,023 km (0.117 R)
• M12: 14,453,249 km (0.033 R)
• M13: 16,257,399 km (0.072 R)
• M14: 16,890,647 km (0.096 R)
• M15: 18,014,276 km (0.114 R)
• M16: 21,359,734 km (0.088 R)
• M17: 23,462,182 km (0.089 R)
• M18: 25,096,838 km (0.072 R)
• M19: 26,309,927 km (0.107 R)
• M20: 28,983,690 km (0.107 R)
• M21: 29,913,740 km (0.044 R)
• M22: 30,590,072 km (0.08 R)
• M23: 37,453,921 km (0.059 R)
• M24: 39,357,554 km (0.107 R)
• M25: 41,826,517 km (0.093 R)
• M26: 44,396,908 km (0.074 R)
• M27: 45,276,544 km (0.104 R)
• M28: 47,617,900 km (0.109 R)
• M29: 48,911,323 km (0.079 R)
• M30: 53,129,085 km (0.101 R)
• M31: 54,720,956 km (0.111 R)
• M32: 62,718,309 km (0.116 R)
• M33: 65,623,350 km (0.12 R)
• M34: 72,182,768 km (0.101 R)
• M35: 74,874,632 km (0.076 R)
• M36: 94,744,221 km (0.077 R)
• M37: 99,457,900 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 21.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119

Radius: 4.7

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 19.42 AU - 22.84 AU

Year: 28495 Days

Day: 19.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,756,957 km

• M1: 58,493 km (0.097 R)
• M2: 243,396 km (0.062 R)
• M3: 907,610 km (0.029 R)
• M4: 1,395,449 km (0.103 R)
• M5: 2,077,316 km (0.096 R)
• M6: 2,302,012 km (0.086 R)
• M7: 2,501,725 km (0.083 R)
• M8: 3,418,461 km (0.03 R)
• M9: 6,811,191 km (0.098 R)
• M10: 9,898,742 km (0.115 R)
• M11: 10,373,864 km (0.107 R)
• M12: 15,708,076 km (0.111 R)
• M13: 17,167,403 km (0.115 R)
• M14: 18,794,579 km (0.082 R)
• M15: 19,277,780 km (0.092 R)
• M16: 20,691,629 km (0.112 R)
• M17: 21,467,444 km (0.082 R)
• M18: 22,712,547 km (0.077 R)
• M19: 22,985,414 km (0.065 R)
• M20: 24,004,923 km (0.088 R)
• M21: 25,248,231 km (0.099 R)
• M22: 26,533,875 km (0.098 R)
• M23: 28,175,413 km (0.095 R)
• M24: 32,457,502 km (0.094 R)
• M25: 36,403,595 km (0.101 R)
• M26: 37,153,828 km (0.118 R)
• M27: 47,123,479 km (0.086 R)
• M28: 47,865,036 km (0.095 R)
• M29: 48,463,876 km (0.12 R)

Kuiper Belt

Range: 37.4 - 64.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 15,832 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit