🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.45 AU - 0.73 AU

Year: 297 Days

Day: 39.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 44.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.2

Radius: 10.3

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.64 AU - 1.04 AU

Year: 505 Days

Day: 11.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,669,266 km

• M1: 130,599 km (0.091 R)
• M2: 476,768 km (0.055 R)
• M3: 1,104,780 km (0.077 R)
• M4: 1,735,335 km (0.042 R)
• M5: 2,071,631 km (0.092 R)
• M6: 2,582,658 km (0.046 R)
• M7: 4,323,678 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225

Radius: 12.8

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.94 AU - 1.54 AU

Year: 906 Days

Day: 8.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 110.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,669,266 km

• M1: 159,172 km (0.101 R)
• M2: 721,511 km (0.091 R)
• M3: 1,150,707 km (0.115 R)
• M4: 1,688,661 km (0.078 R)
• M5: 2,224,670 km (0.09 R)
• M6: 4,344,173 km (0.092 R)
• M7: 4,874,347 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.5

Radius: 14.8

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.6 AU - 1.9 AU

Year: 1519 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,669,266 km

• M1: 201,359 km (0.097 R)
• M2: 714,180 km (0.105 R)
• M3: 1,186,760 km (0.119 R)
• M4: 1,702,573 km (0.101 R)
• M5: 2,700,092 km (0.11 R)
• M6: 3,683,100 km (0.116 R)
• M7: 4,295,104 km (0.112 R)
• M8: 5,884,283 km (0.081 R)
• M9: 6,379,302 km (0.056 R)
• M10: 7,921,806 km (0.117 R)
• M11: 9,225,401 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.6

Radius: 13.5

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.25 AU - 3.33 AU

Year: 3915 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,669,266 km

• M1: 167,849 km (0.107 R)
• M2: 703,559 km (0.057 R)
• M3: 1,207,554 km (0.095 R)
• M4: 1,633,459 km (0.028 R)
• M5: 5,577,308 km (0.085 R)
• M6: 6,560,315 km (0.078 R)
• M7: 7,032,895 km (0.074 R)
• M8: 7,623,807 km (0.054 R)
• M9: 11,381,107 km (0.111 R)
• M10: 13,190,194 km (0.101 R)
• M11: 19,641,004 km (0.083 R)
• M12: 20,191,524 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89

Radius: 9.6

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.17 AU - 6.65 AU

Year: 8255 Days

Day: 13.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,669,266 km

• M1: 119,379 km (0.092 R)
• M2: 505,790 km (0.101 R)
• M3: 1,489,247 km (0.095 R)
• M4: 2,790,898 km (0.047 R)
• M5: 7,563,369 km (0.095 R)
• M6: 9,931,803 km (0.071 R)
• M7: 11,918,612 km (0.117 R)
• M8: 14,156,895 km (0.097 R)
• M9: 19,091,531 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 292.1

Radius: 7.2

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.72 AU - 7.38 AU

Year: 9762 Days

Day: 22.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,669,266 km

• M1: 93,050 km (0.083 R)
• M2: 385,813 km (0.107 R)
• M3: 926,759 km (0.084 R)
• M4: 1,217,727 km (0.108 R)
• M5: 1,556,416 km (0.036 R)
• M6: 2,407,479 km (0.106 R)
• M7: 3,381,660 km (0.103 R)
• M8: 4,384,863 km (0.085 R)
• M9: 5,917,493 km (0.119 R)
• M10: 6,375,712 km (0.094 R)
• M11: 6,928,027 km (0.074 R)
• M12: 7,437,109 km (0.068 R)
• M13: 8,088,458 km (0.094 R)
• M14: 9,243,204 km (0.111 R)
• M15: 10,363,841 km (0.047 R)
• M16: 13,979,921 km (0.089 R)
• M17: 14,851,329 km (0.069 R)
• M18: 15,635,521 km (0.111 R)
• M19: 16,006,673 km (0.071 R)
• M20: 19,759,036 km (0.116 R)
• M21: 20,412,330 km (0.109 R)
• M22: 24,887,551 km (0.103 R)
• M23: 26,165,565 km (0.103 R)
• M24: 32,812,797 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 499

Radius: 4.8

Gravity: 21.66 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.99 AU - 8.03 AU

Year: 10896 Days

Day: 17.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,669,266 km

• M1: 59,690 km (0.082 R)
• M2: 382,522 km (0.087 R)
• M3: 565,480 km (0.111 R)
• M4: 908,508 km (0.075 R)
• M5: 2,369,929 km (0.102 R)
• M6: 2,723,728 km (0.093 R)
• M7: 3,839,878 km (0.092 R)
• M8: 4,441,561 km (0.082 R)
• M9: 6,289,543 km (0.118 R)
• M10: 6,509,901 km (0.097 R)
• M11: 6,888,384 km (0.102 R)
• M12: 8,958,668 km (0.106 R)
• M13: 9,618,694 km (0.104 R)
• M14: 13,593,959 km (0.065 R)
• M15: 15,770,907 km (0.026 R)
• M16: 16,452,923 km (0.05 R)
• M17: 20,559,086 km (0.09 R)
• M18: 22,122,683 km (0.077 R)
• M19: 23,763,771 km (0.081 R)
• M20: 23,941,194 km (0.12 R)
• M21: 27,383,292 km (0.096 R)
• M22: 28,168,681 km (0.094 R)
• M23: 35,114,061 km (0.111 R)
• M24: 41,557,690 km (0.108 R)
• M25: 42,855,751 km (0.048 R)
• M26: 45,669,238 km (0.111 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 15,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit