🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.62 AU - 0.96 AU

Year: 309 Days

Day: 24.3 Hours

Environment

Temp: -32 °C

Axial Tilt: 72.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,848,376 km

• M1: 511,774 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.41 AU - 1.69 AU

Year: 849 Days

Day: 19.3 Hours

Environment

Temp: -97 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,848,376 km

• M1: 643,720 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.81 AU - 1.89 AU

Year: 1106 Days

Day: 40.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.01 AU - 2.61 AU

Year: 1544 Days

Day: 31.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 82.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.6

Radius: 12.3

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.42 AU - 3.82 AU

Year: 3029 Days

Day: 14.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,848,376 km

• M1: 156,330 km (0.057 R)
• M2: 660,774 km (0.094 R)
• M3: 1,115,551 km (0.097 R)
• M4: 1,771,538 km (0.097 R)
• M5: 2,216,592 km (0.111 R)
• M6: 2,933,016 km (0.025 R)
• M7: 3,941,156 km (0.093 R)
• M8: 5,093,359 km (0.068 R)
• M9: 6,314,676 km (0.097 R)
• M10: 7,148,534 km (0.084 R)
• M11: 8,465,145 km (0.092 R)
• M12: 8,890,153 km (0.078 R)
• M13: 9,292,272 km (0.113 R)
• M14: 9,744,656 km (0.049 R)
• M15: 10,291,286 km (0.079 R)
• M16: 11,402,948 km (0.111 R)
• M17: 12,366,807 km (0.076 R)
• M18: 13,816,111 km (0.086 R)
• M19: 14,207,759 km (0.113 R)
• M20: 14,657,450 km (0.116 R)
• M21: 16,117,226 km (0.093 R)
• M22: 20,000,787 km (0.094 R)
• M23: 20,820,732 km (0.067 R)
• M24: 22,730,349 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.3

Radius: 8.2

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.26 AU - 6.72 AU

Year: 7270 Days

Day: 5.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,848,376 km

• M1: 103,073 km (0.07 R)
• M2: 598,242 km (0.097 R)
• M3: 1,864,289 km (0.091 R)
• M4: 2,295,131 km (0.081 R)
• M5: 3,117,620 km (0.074 R)
• M6: 3,515,251 km (0.104 R)
• M7: 3,774,653 km (0.053 R)
• M8: 4,631,101 km (0.104 R)
• M9: 6,831,536 km (0.059 R)
• M10: 10,303,404 km (0.043 R)
• M11: 12,442,952 km (0.087 R)
• M12: 13,444,510 km (0.064 R)
• M13: 15,108,039 km (0.104 R)
• M14: 19,933,467 km (0.081 R)
• M15: 30,956,886 km (0.11 R)
• M16: 32,893,281 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.8

Radius: 6.1

Gravity: 19.77 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 12.94 AU - 18.78 AU

Year: 27773 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,848,376 km

• M1: 75,846 km (0.051 R)
• M2: 390,002 km (0.036 R)
• M3: 1,224,608 km (0.076 R)
• M4: 1,645,277 km (0.109 R)
• M5: 2,069,537 km (0.093 R)
• M6: 2,464,027 km (0.079 R)
• M7: 2,666,582 km (0.051 R)
• M8: 4,266,830 km (0.07 R)
• M9: 6,048,840 km (0.101 R)
• M10: 6,561,811 km (0.118 R)
• M11: 7,103,505 km (0.086 R)
• M12: 7,943,797 km (0.098 R)
• M13: 8,673,984 km (0.098 R)
• M14: 9,085,228 km (0.098 R)
• M15: 10,528,249 km (0.098 R)
• M16: 11,547,908 km (0.078 R)
• M17: 15,252,101 km (0.12 R)
• M18: 15,937,858 km (0.095 R)
• M19: 17,929,754 km (0.094 R)
• M20: 21,644,119 km (0.092 R)
• M21: 25,601,132 km (0.097 R)
• M22: 26,203,114 km (0.092 R)
• M23: 32,470,667 km (0.07 R)
• M24: 40,799,079 km (0.113 R)
• M25: 41,620,072 km (0.112 R)
• M26: 44,149,174 km (0.114 R)
• M27: 47,497,474 km (0.079 R)
• M28: 48,772,496 km (0.118 R)
• M29: 51,200,619 km (0.097 R)
• M30: 59,175,532 km (0.098 R)
• M31: 60,863,894 km (0.097 R)
• M32: 71,674,135 km (0.108 R)
• M33: 81,864,443 km (0.089 R)
• M34: 82,384,744 km (0.095 R)
• M35: 82,907,439 km (0.093 R)
• M36: 83,959,262 km (0.087 R)
• M37: 85,821,306 km (0.111 R)
• M38: 94,113,666 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440

Radius: 5.2

Gravity: 16.27 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 15.77 AU - 16.39 AU

Year: 28353 Days

Day: 15.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,848,376 km

• M1: 66,870 km (0.093 R)
• M2: 272,867 km (0.05 R)
• M3: 1,282,054 km (0.085 R)
• M4: 1,553,574 km (0.094 R)
• M5: 2,277,478 km (0.11 R)
• M6: 4,395,335 km (0.1 R)
• M7: 6,973,206 km (0.104 R)
• M8: 12,599,731 km (0.11 R)
• M9: 15,557,580 km (0.065 R)
• M10: 16,133,382 km (0.111 R)
• M11: 19,509,358 km (0.108 R)
• M12: 20,372,687 km (0.059 R)
• M13: 21,361,529 km (0.115 R)
• M14: 23,434,506 km (0.058 R)
• M15: 25,865,472 km (0.105 R)
• M16: 32,935,168 km (0.081 R)
• M17: 42,609,064 km (0.116 R)
• M18: 44,549,947 km (0.086 R)
• M19: 48,433,358 km (0.093 R)
• M20: 56,672,012 km (0.119 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 17,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit