🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.63 AU - 0.77 AU

Year: 250 Days

Day: 37.7 Hours

Environment

Temp: -2 °C

Axial Tilt: 35.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.72 AU - 0.84 AU

Year: 294 Days

Day: 40.9 Hours

Environment

Temp: 0 °C

Axial Tilt: 2.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.77 AU - 1.13 AU

Year: 396 Days

Day: 42.2 Hours

Environment

Temp: -41 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,022,612 km

• M1: 30,368 km (0.062 R)
• M2: 57,446 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.49 AU - 1.57 AU

Year: 809 Days

Day: 32.9 Hours

Environment

Temp: -83 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.56 AU - 1.9 AU

Year: 973 Days

Day: 28.5 Hours

Environment

Temp: -95 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 13.7

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.45 AU - 4.11 AU

Year: 3142 Days

Day: 8.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,022,612 km

• M1: 170,542 km (0.078 R)
• M2: 617,390 km (0.063 R)
• M3: 1,045,091 km (0.062 R)
• M4: 1,582,446 km (0.085 R)
• M5: 3,304,767 km (0.103 R)
• M6: 3,952,525 km (0.112 R)
• M7: 4,472,228 km (0.106 R)
• M8: 5,798,264 km (0.115 R)
• M9: 6,364,941 km (0.104 R)
• M10: 7,139,558 km (0.061 R)
• M11: 8,038,342 km (0.053 R)
• M12: 9,146,863 km (0.104 R)
• M13: 9,596,853 km (0.116 R)
• M14: 11,706,931 km (0.071 R)
• M15: 15,235,197 km (0.111 R)
• M16: 17,033,064 km (0.088 R)
• M17: 17,822,642 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599

Radius: 12.6

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.47 AU - 4.15 AU

Year: 3179 Days

Day: 14.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,022,612 km

• M1: 156,629 km (0.076 R)
• M2: 647,310 km (0.102 R)
• M3: 2,357,214 km (0.084 R)
• M4: 3,329,899 km (0.036 R)
• M5: 5,183,566 km (0.111 R)
• M6: 7,395,371 km (0.052 R)
• M7: 8,133,636 km (0.088 R)
• M8: 9,608,222 km (0.098 R)
• M9: 11,928,336 km (0.074 R)
• M10: 15,866,500 km (0.074 R)
• M11: 16,553,304 km (0.107 R)
• M12: 18,443,323 km (0.116 R)

Asteroid Belt

Center: 5.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.1

Radius: 8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.79 AU - 9.01 AU

Year: 8606 Days

Day: 5.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,022,612 km

• M1: 102,175 km (0.11 R)
• M2: 382,671 km (0.07 R)
• M3: 757,564 km (0.069 R)
• M4: 1,042,697 km (0.037 R)
• M5: 1,659,489 km (0.105 R)
• M6: 2,150,918 km (0.072 R)
• M7: 2,851,635 km (0.118 R)
• M8: 3,164,294 km (0.089 R)
• M9: 3,900,016 km (0.069 R)
• M10: 4,674,185 km (0.111 R)
• M11: 6,853,976 km (0.117 R)
• M12: 7,353,334 km (0.038 R)
• M13: 7,810,056 km (0.116 R)
• M14: 8,672,338 km (0.106 R)
• M15: 10,342,150 km (0.103 R)
• M16: 14,505,758 km (0.059 R)
• M17: 16,565,870 km (0.117 R)
• M18: 18,218,926 km (0.09 R)
• M19: 20,803,828 km (0.06 R)
• M20: 22,385,676 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358.5

Radius: 7.3

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 13.55 AU - 14.41 AU

Year: 22345 Days

Day: 22.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,022,612 km

• M1: 91,255 km (0.111 R)
• M2: 2,074,025 km (0.099 R)
• M3: 3,376,574 km (0.104 R)
• M4: 5,010,481 km (0.108 R)
• M5: 5,593,016 km (0.111 R)
• M6: 8,632,545 km (0.098 R)
• M7: 9,740,766 km (0.106 R)
• M8: 14,836,369 km (0.09 R)
• M9: 15,203,781 km (0.119 R)
• M10: 18,874,165 km (0.036 R)
• M11: 20,188,233 km (0.072 R)
• M12: 24,597,331 km (0.106 R)
• M13: 26,269,984 km (0.062 R)
• M14: 27,794,686 km (0.098 R)
• M15: 29,033,207 km (0.078 R)
• M16: 29,956,974 km (0.093 R)
• M17: 35,914,110 km (0.105 R)
• M18: 47,042,247 km (0.119 R)
• M19: 56,619,054 km (0.069 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 11,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit