🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.45 AU - 0.59 AU

Year: 242 Days

Day: 15.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,091,293 km

• M1: 32,762 km (0.051 R)
• M2: 323,131 km (0.12 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.43 AU - 0.71 AU

Year: 278 Days

Day: 38.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.59 AU - 0.59 AU

Year: 293 Days

Day: 40.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.7

Radius: 13.3

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.63 AU - 0.75 AU

Year: 370 Days

Day: 11.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,091,293 km

• M1: 165,605 km (0.046 R)
• M2: 631,453 km (0.112 R)
• M3: 1,184,516 km (0.063 R)
• M4: 2,139,698 km (0.096 R)
• M5: 2,571,887 km (0.091 R)
• M6: 3,011,106 km (0.116 R)
• M7: 3,616,678 km (0.028 R)
• M8: 4,369,155 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.2

Radius: 9.3

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.76 AU - 1.14 AU

Year: 598 Days

Day: 11.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,091,293 km

• M1: 115,639 km (0.083 R)
• M2: 589,266 km (0.105 R)
• M3: 1,018,014 km (0.094 R)
• M4: 1,314,965 km (0.075 R)
• M5: 1,607,130 km (0.1 R)
• M6: 2,049,042 km (0.08 R)
• M7: 3,292,200 km (0.11 R)
• M8: 3,827,312 km (0.115 R)
• M9: 4,349,259 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.4

Radius: 11.3

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.91 AU - 1.33 AU

Year: 765 Days

Day: 14.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 99.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,091,293 km

• M1: 140,772 km (0.12 R)
• M2: 580,739 km (0.069 R)
• M3: 1,114,803 km (0.116 R)
• M4: 1,682,228 km (0.12 R)
• M5: 2,767,561 km (0.051 R)
• M6: 3,388,691 km (0.105 R)
• M7: 4,070,558 km (0.119 R)
• M8: 4,723,403 km (0.09 R)
• M9: 5,137,191 km (0.071 R)
• M10: 6,157,748 km (0.113 R)
• M11: 6,737,589 km (0.068 R)
• M12: 7,792,703 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.1

Radius: 8.2

Gravity: 12.76 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.16 AU - 1.6 AU

Year: 1047 Days

Day: 10.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,091,293 km

• M1: 107,561 km (0.103 R)
• M2: 437,574 km (0.12 R)
• M3: 914,941 km (0.113 R)
• M4: 1,943,276 km (0.078 R)
• M5: 2,414,360 km (0.081 R)
• M6: 2,932,567 km (0.099 R)
• M7: 3,600,073 km (0.118 R)
• M8: 4,053,803 km (0.058 R)
• M9: 4,581,584 km (0.09 R)
• M10: 4,881,379 km (0.058 R)
• M11: 5,315,063 km (0.117 R)
• M12: 5,646,422 km (0.074 R)
• M13: 6,350,579 km (0.101 R)
• M14: 7,387,292 km (0.102 R)
• M15: 8,066,616 km (0.095 R)
• M16: 8,366,261 km (0.093 R)
• M17: 9,731,491 km (0.043 R)
• M18: 10,071,228 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.5

Radius: 6.2

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 10.63 AU - 11.89 AU

Year: 24396 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,091,293 km

• M1: 84,373 km (0.082 R)
• M2: 296,503 km (0.074 R)
• M3: 659,427 km (0.115 R)
• M4: 1,166,863 km (0.055 R)
• M5: 1,457,382 km (0.086 R)
• M6: 2,042,310 km (0.115 R)
• M7: 2,628,435 km (0.045 R)
• M8: 3,293,397 km (0.114 R)
• M9: 4,561,239 km (0.089 R)
• M10: 5,438,631 km (0.056 R)
• M11: 5,958,483 km (0.056 R)
• M12: 6,209,209 km (0.114 R)
• M13: 7,050,398 km (0.106 R)
• M14: 8,529,622 km (0.117 R)
• M15: 10,323,300 km (0.098 R)
• M16: 10,624,740 km (0.069 R)
• M17: 11,823,617 km (0.057 R)
• M18: 12,020,937 km (0.042 R)
• M19: 13,606,824 km (0.08 R)
• M20: 13,896,146 km (0.11 R)
• M21: 17,187,748 km (0.111 R)
• M22: 19,649,531 km (0.065 R)
• M23: 20,393,930 km (0.109 R)
• M24: 21,253,669 km (0.074 R)
• M25: 27,727,517 km (0.032 R)
• M26: 31,220,028 km (0.081 R)
• M27: 33,660,718 km (0.083 R)
• M28: 41,286,320 km (0.101 R)
• M29: 47,127,668 km (0.106 R)
• M30: 54,580,334 km (0.045 R)
• M31: 57,920,256 km (0.106 R)
• M32: 61,001,075 km (0.105 R)
• M33: 61,788,109 km (0.093 R)
• M34: 63,987,048 km (0.075 R)
• M35: 68,752,489 km (0.057 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 13,316 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit