🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.52 AU - 0.54 AU

Year: 136 Days

Day: 16.8 Hours

Environment

Temp: 245 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 79,876,097 km

• M1: 124,765 km (0.038 R)
• M2: 236,514 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.47 AU - 0.73 AU

Year: 163 Days

Day: 18.2 Hours

Environment

Temp: 238 °C

Axial Tilt: 25.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.67 AU - 1.09 AU

Year: 290 Days

Day: 32.8 Hours

Environment

Temp: 175 °C

Axial Tilt: 22.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.05 AU - 1.51 AU

Year: 509 Days

Day: 43.1 Hours

Environment

Temp: 2 °C

Axial Tilt: 48 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 79,876,097 km

• M1: 196,871 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.41 AU - 1.51 AU

Year: 620 Days

Day: 28 Hours

Environment

Temp: -2 °C

Axial Tilt: 38.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 79,876,097 km

• M1: 779,555 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.18 AU - 4.54 AU

Year: 2665 Days

Day: 23.3 Hours

Environment

Temp: -104 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,876,097 km

• M1: 52,958 km (0.085 R)
• M2: 135,236 km (0.106 R)

Asteroid Belt

Center: 8.43 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288

Radius: 14

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 10.61 AU - 15.39 AU

Year: 16474 Days

Day: 14.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,876,097 km

• M1: 174,282 km (0.045 R)
• M2: 855,550 km (0.056 R)
• M3: 1,675,496 km (0.09 R)
• M4: 2,241,574 km (0.117 R)
• M5: 5,659,736 km (0.084 R)
• M6: 7,563,070 km (0.069 R)
• M7: 10,373,266 km (0.056 R)
• M8: 12,714,323 km (0.103 R)
• M9: 16,571,106 km (0.072 R)
• M10: 19,273,890 km (0.08 R)
• M11: 26,211,941 km (0.071 R)
• M12: 27,896,712 km (0.066 R)
• M13: 36,077,920 km (0.078 R)
• M14: 37,663,508 km (0.113 R)
• M15: 40,192,909 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521.4

Radius: 6.5

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 15.29 AU - 18.73 AU

Year: 24657 Days

Day: 19.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 79,876,097 km

• M1: 88,562 km (0.101 R)
• M2: 295,157 km (0.079 R)
• M3: 530,923 km (0.111 R)
• M4: 758,312 km (0.106 R)
• M5: 1,129,614 km (0.1 R)
• M6: 1,616,854 km (0.045 R)
• M7: 2,322,657 km (0.074 R)
• M8: 3,162,050 km (0.12 R)
• M9: 3,681,005 km (0.051 R)
• M10: 3,961,052 km (0.073 R)
• M11: 4,390,548 km (0.118 R)
• M12: 4,705,751 km (0.113 R)
• M13: 5,866,929 km (0.12 R)
• M14: 6,514,090 km (0.064 R)
• M15: 7,696,810 km (0.116 R)
• M16: 9,817,809 km (0.1 R)
• M17: 10,235,935 km (0.114 R)
• M18: 13,356,846 km (0.098 R)
• M19: 14,094,214 km (0.107 R)
• M20: 14,626,184 km (0.099 R)
• M21: 16,720,404 km (0.1 R)
• M22: 19,282,866 km (0.101 R)
• M23: 20,415,921 km (0.032 R)
• M24: 20,705,841 km (0.029 R)
• M25: 22,710,303 km (0.114 R)
• M26: 27,333,476 km (0.108 R)
• M27: 27,803,961 km (0.108 R)
• M28: 29,864,223 km (0.071 R)
• M29: 35,386,329 km (0.037 R)
• M30: 38,093,602 km (0.095 R)
• M31: 41,706,839 km (0.088 R)
• M32: 49,954,918 km (0.091 R)
• M33: 53,720,895 km (0.117 R)
• M34: 54,273,958 km (0.083 R)
• M35: 57,671,774 km (0.11 R)
• M36: 62,826,319 km (0.097 R)
• M37: 66,569,257 km (0.104 R)
• M38: 70,018,835 km (0.114 R)
• M39: 74,267,564 km (0.1 R)
• M40: 77,506,058 km (0.102 R)

Kuiper Belt

Range: 31.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 15,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit