🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.52 AU - 0.76 AU

Year: 331 Days

Day: 42.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.6

Radius: 11.2

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.6 AU - 0.86 AU

Year: 403 Days

Day: 10.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,268,840 km

• M1: 139,276 km (0.077 R)
• M2: 555,906 km (0.104 R)
• M3: 1,204,113 km (0.104 R)
• M4: 2,205,970 km (0.102 R)
• M5: 3,482,938 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.5

Radius: 8.7

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.43 AU - 2.15 AU

Year: 1546 Days

Day: 7.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 65.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,268,840 km

• M1: 109,805 km (0.086 R)
• M2: 425,756 km (0.106 R)
• M3: 812,316 km (0.078 R)
• M4: 1,095,356 km (0.075 R)
• M5: 1,402,181 km (0.07 R)
• M6: 1,766,900 km (0.1 R)
• M7: 2,124,290 km (0.08 R)
• M8: 2,971,612 km (0.088 R)
• M9: 3,399,612 km (0.104 R)
• M10: 3,938,762 km (0.116 R)
• M11: 4,711,585 km (0.094 R)
• M12: 5,187,456 km (0.056 R)
• M13: 5,514,776 km (0.088 R)
• M14: 6,381,696 km (0.102 R)
• M15: 6,758,084 km (0.082 R)
• M16: 7,363,806 km (0.08 R)
• M17: 8,354,592 km (0.082 R)
• M18: 9,021,200 km (0.076 R)
• M19: 9,788,488 km (0.1 R)
• M20: 10,087,085 km (0.042 R)
• M21: 10,598,411 km (0.08 R)
• M22: 10,913,464 km (0.066 R)
• M23: 11,896,322 km (0.114 R)
• M24: 13,176,281 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.6

Radius: 8.5

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.42 AU - 3.68 AU

Year: 4319 Days

Day: 5.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,268,840 km

• M1: 105,766 km (0.077 R)
• M2: 454,927 km (0.116 R)
• M3: 954,285 km (0.091 R)
• M4: 1,231,490 km (0.03 R)
• M5: 3,224,582 km (0.108 R)
• M6: 4,534,611 km (0.098 R)
• M7: 5,308,630 km (0.1 R)
• M8: 6,707,819 km (0.074 R)
• M9: 7,213,909 km (0.094 R)
• M10: 7,779,239 km (0.084 R)
• M11: 8,266,629 km (0.098 R)
• M12: 10,422,633 km (0.111 R)
• M13: 10,716,144 km (0.119 R)
• M14: 12,175,322 km (0.06 R)
• M15: 12,595,094 km (0.108 R)
• M16: 13,862,636 km (0.085 R)
• M17: 14,736,138 km (0.081 R)
• M18: 19,788,956 km (0.048 R)
• M19: 21,295,706 km (0.038 R)
• M20: 23,160,294 km (0.099 R)
• M21: 23,805,360 km (0.114 R)
• M22: 24,168,882 km (0.042 R)
• M23: 25,056,297 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.8

Radius: 13.3

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.11 AU - 4.47 AU

Year: 4764 Days

Day: 6 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,268,840 km

• M1: 166,054 km (0.111 R)
• M2: 679,922 km (0.069 R)
• M3: 1,110,315 km (0.08 R)
• M4: 1,664,127 km (0.074 R)
• M5: 2,732,854 km (0.104 R)
• M6: 3,166,389 km (0.066 R)
• M7: 4,217,463 km (0.095 R)
• M8: 5,161,575 km (0.053 R)
• M9: 7,563,519 km (0.064 R)
• M10: 8,991,879 km (0.111 R)
• M11: 9,884,979 km (0.063 R)
• M12: 10,393,013 km (0.086 R)
• M13: 12,738,408 km (0.09 R)
• M14: 14,904,585 km (0.11 R)
• M15: 15,625,946 km (0.11 R)
• M16: 17,418,578 km (0.059 R)
• M17: 20,265,724 km (0.098 R)
• M18: 21,023,288 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.8

Radius: 7.5

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 7.48 AU - 8.86 AU

Year: 15078 Days

Day: 16 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,268,840 km

• M1: 93,499 km (0.118 R)
• M2: 460,163 km (0.088 R)
• M3: 749,485 km (0.084 R)
• M4: 2,344,647 km (0.101 R)
• M5: 2,611,530 km (0.113 R)
• M6: 3,050,001 km (0.068 R)
• M7: 3,941,455 km (0.105 R)
• M8: 4,519,202 km (0.101 R)
• M9: 5,027,087 km (0.088 R)
• M10: 7,049,949 km (0.107 R)
• M11: 8,681,613 km (0.114 R)
• M12: 11,335,629 km (0.038 R)
• M13: 17,451,489 km (0.037 R)
• M14: 20,717,360 km (0.052 R)
• M15: 21,696,778 km (0.037 R)
• M16: 25,276,056 km (0.061 R)
• M17: 29,636,834 km (0.098 R)
• M18: 35,963,627 km (0.111 R)
• M19: 37,495,809 km (0.088 R)
• M20: 41,835,942 km (0.063 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 12,249 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit