🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.58 AU - 0.58 AU

Year: 281 Days

Day: 44.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 152.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.5

Radius: 14.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.67 AU - 0.99 AU

Year: 481 Days

Day: 11.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,223,525 km

• M1: 175,329 km (0.1 R)
• M2: 658,530 km (0.088 R)
• M3: 1,147,715 km (0.098 R)
• M4: 1,632,262 km (0.085 R)
• M5: 2,190,113 km (0.1 R)
• M6: 2,806,157 km (0.082 R)
• M7: 3,378,518 km (0.076 R)
• M8: 4,219,707 km (0.116 R)
• M9: 4,788,927 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.1

Radius: 12.7

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.79 AU - 1.15 AU

Year: 607 Days

Day: 7.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,223,525 km

• M1: 157,975 km (0.114 R)
• M2: 579,991 km (0.114 R)
• M3: 1,054,964 km (0.091 R)
• M4: 1,754,633 km (0.088 R)
• M5: 3,147,988 km (0.083 R)
• M6: 3,642,559 km (0.079 R)
• M7: 4,113,941 km (0.119 R)
• M8: 4,593,702 km (0.077 R)
• M9: 5,969,105 km (0.066 R)
• M10: 6,710,512 km (0.106 R)
• M11: 7,356,026 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.8

Radius: 9.3

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.86 AU - 1.18 AU

Year: 655 Days

Day: 8.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,223,525 km

• M1: 115,789 km (0.062 R)
• M2: 435,330 km (0.106 R)
• M3: 790,774 km (0.098 R)
• M4: 1,113,756 km (0.119 R)
• M5: 2,100,504 km (0.087 R)
• M6: 2,747,664 km (0.119 R)
• M7: 3,141,854 km (0.096 R)
• M8: 3,433,870 km (0.045 R)
• M9: 3,783,929 km (0.114 R)
• M10: 4,633,046 km (0.111 R)
• M11: 5,727,504 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.9

Radius: 8.7

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.9 AU - 4.22 AU

Year: 5201 Days

Day: 5.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 25,223,525 km

• M1: 108,159 km (0.117 R)
• M2: 385,215 km (0.119 R)
• M3: 658,679 km (0.098 R)
• M4: 1,206,058 km (0.058 R)
• M5: 1,586,485 km (0.116 R)
• M6: 1,987,707 km (0.076 R)
• M7: 2,439,044 km (0.088 R)
• M8: 2,716,398 km (0.037 R)
• M9: 3,053,741 km (0.027 R)
• M10: 3,790,511 km (0.08 R)
• M11: 5,613,361 km (0.103 R)
• M12: 6,100,601 km (0.1 R)
• M13: 7,194,760 km (0.106 R)
• M14: 7,955,914 km (0.098 R)
• M15: 9,176,483 km (0.107 R)
• M16: 10,929,920 km (0.114 R)
• M17: 11,258,287 km (0.097 R)
• M18: 13,315,856 km (0.112 R)
• M19: 14,127,724 km (0.037 R)
• M20: 14,461,477 km (0.096 R)
• M21: 15,318,972 km (0.038 R)
• M22: 16,270,564 km (0.106 R)
• M23: 17,261,201 km (0.031 R)
• M24: 19,567,252 km (0.082 R)
• M25: 21,045,428 km (0.085 R)
• M26: 23,130,374 km (0.08 R)
• M27: 24,143,600 km (0.047 R)
• M28: 26,426,015 km (0.086 R)
• M29: 27,018,423 km (0.048 R)
• M30: 28,054,388 km (0.114 R)
• M31: 29,206,291 km (0.112 R)
• M32: 30,113,752 km (0.065 R)
• M33: 30,667,115 km (0.043 R)
• M34: 31,321,157 km (0.111 R)
• M35: 31,794,185 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.6

Radius: 9.8

Gravity: 9.24 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.44 AU - 5.28 AU

Year: 5788 Days

Day: 11.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,223,525 km

• M1: 184,454 km (0.089 R)
• M2: 517,609 km (0.102 R)
• M3: 1,852,171 km (0.109 R)
• M4: 2,436,949 km (0.096 R)
• M5: 3,017,987 km (0.111 R)
• M6: 3,619,969 km (0.105 R)
• M7: 4,223,148 km (0.09 R)
• M8: 8,013,808 km (0.063 R)
• M9: 8,784,836 km (0.117 R)
• M10: 10,147,972 km (0.1 R)
• M11: 11,647,241 km (0.1 R)
• M12: 12,370,547 km (0.105 R)
• M13: 19,203,879 km (0.101 R)
• M14: 27,923,939 km (0.119 R)
• M15: 29,218,259 km (0.114 R)
• M16: 30,263,051 km (0.107 R)
• M17: 30,649,013 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.5

Radius: 8.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 5.05 AU - 7.05 AU

Year: 9462 Days

Day: 10.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,223,525 km

• M1: 109,506 km (0.102 R)
• M2: 1,622,239 km (0.119 R)
• M3: 2,064,750 km (0.043 R)
• M4: 2,634,568 km (0.078 R)
• M5: 3,100,416 km (0.074 R)
• M6: 4,711,585 km (0.066 R)
• M7: 5,588,528 km (0.106 R)
• M8: 6,600,856 km (0.097 R)
• M9: 8,760,601 km (0.114 R)
• M10: 9,561,548 km (0.112 R)
• M11: 20,180,154 km (0.109 R)
• M12: 24,110,240 km (0.059 R)
• M13: 24,551,554 km (0.063 R)
• M14: 24,998,103 km (0.051 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 13,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit