🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.53 AU - 0.55 AU

Year: 260 Days

Day: 37.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.58 AU - 0.72 AU

Year: 344 Days

Day: 36.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 98.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.2

Radius: 8.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.6 AU - 0.78 AU

Year: 376 Days

Day: 14 Hours

Environment

Temp: -135 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 33,531,550 km

• M1: 173,384 km (0.042 R)
• M2: 652,696 km (0.105 R)
• M3: 923,767 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.8

Radius: 14.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.65 AU - 0.93 AU

Year: 461 Days

Day: 10.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 75 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,531,550 km

• M1: 184,005 km (0.118 R)
• M2: 469,139 km (0.114 R)
• M3: 990,637 km (0.071 R)
• M4: 1,311,525 km (0.061 R)
• M5: 1,635,554 km (0.097 R)
• M6: 2,201,781 km (0.112 R)
• M7: 2,531,645 km (0.113 R)
• M8: 2,937,953 km (0.032 R)
• M9: 3,302,822 km (0.114 R)
• M10: 3,603,514 km (0.08 R)
• M11: 3,988,429 km (0.043 R)
• M12: 4,330,260 km (0.069 R)
• M13: 4,887,362 km (0.092 R)
• M14: 5,208,250 km (0.075 R)
• M15: 6,043,904 km (0.076 R)
• M16: 6,414,308 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.3

Radius: 10.7

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.71 AU - 0.97 AU

Year: 505 Days

Day: 10.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,531,550 km

• M1: 258,356 km (0.088 R)
• M2: 477,516 km (0.09 R)
• M3: 747,241 km (0.092 R)
• M4: 971,189 km (0.058 R)
• M5: 1,310,777 km (0.099 R)
• M6: 1,717,084 km (0.055 R)
• M7: 2,086,292 km (0.098 R)
• M8: 2,373,819 km (0.074 R)
• M9: 2,617,963 km (0.039 R)
• M10: 3,063,316 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.4

Radius: 8.9

Gravity: 11.64 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.93 AU - 1.29 AU

Year: 767 Days

Day: 14.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,531,550 km

• M1: 140,323 km (0.117 R)
• M2: 515,365 km (0.113 R)
• M3: 715,377 km (0.1 R)
• M4: 1,090,120 km (0.088 R)
• M5: 1,446,163 km (0.084 R)
• M6: 1,637,199 km (0.109 R)
• M7: 1,889,870 km (0.094 R)
• M8: 2,360,206 km (0.115 R)
• M9: 2,606,294 km (0.113 R)
• M10: 3,104,754 km (0.104 R)
• M11: 3,556,689 km (0.103 R)
• M12: 3,979,752 km (0.074 R)
• M13: 4,805,532 km (0.082 R)
• M14: 5,311,323 km (0.078 R)
• M15: 6,125,883 km (0.115 R)
• M16: 6,308,243 km (0.096 R)
• M17: 6,696,599 km (0.082 R)
• M18: 6,967,521 km (0.032 R)
• M19: 7,744,981 km (0.026 R)
• M20: 7,932,876 km (0.06 R)
• M21: 8,175,374 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.2

Radius: 12.3

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.94 AU - 4.7 AU

Year: 4898 Days

Day: 8.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,531,550 km

• M1: 286,779 km (0.071 R)
• M2: 987,047 km (0.04 R)
• M3: 1,865,037 km (0.103 R)
• M4: 7,295,290 km (0.043 R)
• M5: 7,707,881 km (0.085 R)

Asteroid Belt

Center: 4.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.5

Radius: 10.8

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.45 AU - 5.31 AU

Year: 6013 Days

Day: 7.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 33,531,550 km

• M1: 150,495 km (0.117 R)
• M2: 474,973 km (0.091 R)
• M3: 690,095 km (0.116 R)
• M4: 1,265,000 km (0.099 R)
• M5: 1,855,163 km (0.113 R)
• M6: 2,497,387 km (0.11 R)
• M7: 2,715,351 km (0.084 R)
• M8: 3,406,194 km (0.049 R)
• M9: 4,657,131 km (0.099 R)
• M10: 5,292,473 km (0.11 R)
• M11: 5,803,350 km (0.111 R)
• M12: 6,424,929 km (0.118 R)
• M13: 7,449,076 km (0.08 R)
• M14: 7,701,298 km (0.054 R)
• M15: 8,350,553 km (0.044 R)
• M16: 8,820,889 km (0.032 R)
• M17: 9,095,551 km (0.103 R)
• M18: 9,622,135 km (0.048 R)
• M19: 10,273,783 km (0.057 R)
• M20: 10,871,128 km (0.085 R)
• M21: 11,563,616 km (0.057 R)
• M22: 11,997,600 km (0.103 R)
• M23: 13,558,504 km (0.088 R)
• M24: 15,486,521 km (0.097 R)
• M25: 17,737,221 km (0.111 R)
• M26: 18,127,223 km (0.078 R)
• M27: 18,472,046 km (0.112 R)
• M28: 19,373,822 km (0.059 R)
• M29: 20,038,485 km (0.091 R)
• M30: 20,245,379 km (0.048 R)
• M31: 21,992,233 km (0.089 R)
• M32: 23,475,496 km (0.044 R)
• M33: 23,755,543 km (0.106 R)
• M34: 24,892,338 km (0.059 R)
• M35: 26,588,329 km (0.08 R)
• M36: 29,518,652 km (0.106 R)
• M37: 30,593,363 km (0.069 R)
• M38: 32,933,074 km (0.083 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 12,628 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit