🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.95 AU - 1.25 AU

Year: 444 Days

Day: 27.9 Hours

Environment

Temp: -2 °C

Axial Tilt: 34.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.17 AU - 1.49 AU

Year: 591 Days

Day: 12.3 Hours

Environment

Temp: -47 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.29 AU - 1.47 AU

Year: 624 Days

Day: 44.3 Hours

Environment

Temp: -44 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.49 AU - 1.91 AU

Year: 853 Days

Day: 24.9 Hours

Environment

Temp: -67 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,885,272 km

• M1: 293,511 km (0.109 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.58 AU - 1.96 AU

Year: 907 Days

Day: 37.6 Hours

Environment

Temp: -70 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.44 AU - 2.18 AU

Year: 938 Days

Day: 42.6 Hours

Environment

Temp: -80 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.1

Radius: 9.4

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.03 AU - 5.61 AU

Year: 4724 Days

Day: 13 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,885,272 km

• M1: 119,230 km (0.101 R)
• M2: 469,887 km (0.079 R)
• M3: 1,005,298 km (0.052 R)
• M4: 1,380,489 km (0.081 R)
• M5: 1,722,470 km (0.107 R)
• M6: 2,193,404 km (0.108 R)
• M7: 2,905,490 km (0.068 R)
• M8: 4,322,780 km (0.113 R)
• M9: 4,987,144 km (0.112 R)
• M10: 5,689,506 km (0.084 R)
• M11: 6,994,149 km (0.063 R)
• M12: 8,123,164 km (0.103 R)
• M13: 10,267,949 km (0.093 R)
• M14: 11,223,131 km (0.033 R)
• M15: 12,379,074 km (0.119 R)
• M16: 13,209,342 km (0.044 R)
• M17: 13,920,531 km (0.114 R)
• M18: 14,391,166 km (0.037 R)
• M19: 15,419,352 km (0.036 R)
• M20: 15,754,002 km (0.119 R)
• M21: 17,380,430 km (0.05 R)
• M22: 20,357,428 km (0.095 R)
• M23: 20,692,826 km (0.093 R)
• M24: 24,328,803 km (0.069 R)
• M25: 25,785,736 km (0.113 R)
• M26: 26,336,855 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.8

Radius: 3.9

Gravity: 59.42 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 11.42 AU - 14.9 AU

Year: 18380 Days

Day: 23.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 78,885,272 km

• M1: 104,120 km (0.104 R)
• M2: 269,426 km (0.097 R)
• M3: 547,678 km (0.088 R)
• M4: 688,749 km (0.118 R)
• M5: 1,124,826 km (0.058 R)
• M6: 2,805,110 km (0.096 R)
• M7: 3,119,864 km (0.083 R)
• M8: 3,635,527 km (0.06 R)
• M9: 3,757,450 km (0.097 R)
• M10: 3,913,630 km (0.073 R)
• M11: 5,561,899 km (0.115 R)
• M12: 6,143,237 km (0.074 R)
• M13: 8,026,375 km (0.077 R)
• M14: 9,266,840 km (0.099 R)
• M15: 11,719,198 km (0.092 R)
• M16: 12,325,069 km (0.111 R)
• M17: 17,942,918 km (0.104 R)
• M18: 18,119,593 km (0.099 R)
• M19: 18,837,513 km (0.093 R)
• M20: 20,812,056 km (0.095 R)
• M21: 22,202,568 km (0.091 R)
• M22: 23,442,585 km (0.083 R)
• M23: 23,759,732 km (0.051 R)
• M24: 26,172,895 km (0.093 R)
• M25: 30,091,462 km (0.064 R)
• M26: 31,351,824 km (0.104 R)
• M27: 36,462,387 km (0.082 R)
• M28: 54,324,821 km (0.105 R)
• M29: 60,839,210 km (0.071 R)
• M30: 62,040,182 km (0.104 R)
• M31: 62,849,656 km (0.119 R)
• M32: 65,112,024 km (0.03 R)
• M33: 66,790,961 km (0.099 R)
• M34: 68,714,042 km (0.067 R)
• M35: 74,476,402 km (0.102 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: 237 - 16,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit