🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.59 AU - 0.71 AU

Year: 197 Days

Day: 17.8 Hours

Environment

Temp: 161 °C

Axial Tilt: 20 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.77 AU - 1.09 AU

Year: 338 Days

Day: 22 Hours

Environment

Temp: 15 °C

Axial Tilt: 28.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.77 AU - 1.93 AU

Year: 948 Days

Day: 41.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.09 AU - 4.55 AU

Year: 2813 Days

Day: 35.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.8

Radius: 12.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.94 AU - 6.54 AU

Year: 5181 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,614,776 km

• M1: 175,478 km (0.066 R)
• M2: 667,954 km (0.067 R)
• M3: 1,094,757 km (0.103 R)
• M4: 1,547,141 km (0.113 R)
• M5: 2,064,451 km (0.075 R)
• M6: 2,623,498 km (0.089 R)
• M7: 3,472,615 km (0.05 R)
• M8: 4,269,374 km (0.059 R)
• M9: 4,711,585 km (0.092 R)
• M10: 5,184,613 km (0.112 R)
• M11: 7,432,920 km (0.084 R)
• M12: 8,427,746 km (0.099 R)
• M13: 11,501,383 km (0.103 R)
• M14: 13,803,396 km (0.106 R)
• M15: 15,745,325 km (0.041 R)
• M16: 16,295,995 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.3

Radius: 11.1

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.53 AU - 7.85 AU

Year: 8034 Days

Day: 9.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,614,776 km

• M1: 138,079 km (0.078 R)
• M2: 629,059 km (0.042 R)
• M3: 1,041,201 km (0.116 R)
• M4: 2,214,647 km (0.069 R)
• M5: 2,719,240 km (0.085 R)
• M6: 3,276,792 km (0.072 R)
• M7: 5,353,809 km (0.1 R)
• M8: 6,485,068 km (0.116 R)
• M9: 9,262,203 km (0.116 R)
• M10: 9,929,559 km (0.097 R)
• M11: 12,463,447 km (0.093 R)
• M12: 13,516,018 km (0.096 R)
• M13: 13,879,690 km (0.086 R)
• M14: 15,931,425 km (0.095 R)
• M15: 17,669,154 km (0.1 R)
• M16: 22,098,298 km (0.096 R)
• M17: 23,901,252 km (0.093 R)
• M18: 28,684,644 km (0.055 R)
• M19: 29,387,455 km (0.103 R)
• M20: 32,856,031 km (0.088 R)
• M21: 37,893,141 km (0.07 R)
• M22: 40,846,502 km (0.12 R)
• M23: 42,379,282 km (0.101 R)
• M24: 44,348,887 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678

Radius: 8.4

Gravity: 9.61 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 6.79 AU - 10.05 AU

Year: 9204 Days

Day: 10.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,614,776 km

• M1: 104,419 km (0.118 R)
• M2: 504,444 km (0.101 R)
• M3: 924,814 km (0.109 R)
• M4: 2,279,423 km (0.112 R)
• M5: 2,759,034 km (0.102 R)
• M6: 3,867,853 km (0.099 R)
• M7: 4,667,902 km (0.037 R)
• M8: 5,249,240 km (0.091 R)
• M9: 6,592,778 km (0.077 R)
• M10: 6,894,517 km (0.087 R)
• M11: 9,651,606 km (0.112 R)
• M12: 10,594,222 km (0.111 R)
• M13: 12,205,391 km (0.118 R)
• M14: 15,973,612 km (0.046 R)
• M15: 21,258,905 km (0.098 R)
• M16: 28,093,283 km (0.106 R)
• M17: 29,291,263 km (0.108 R)
• M18: 31,257,129 km (0.101 R)
• M19: 32,869,943 km (0.094 R)
• M20: 33,309,312 km (0.107 R)
• M21: 35,795,779 km (0.092 R)
• M22: 38,403,569 km (0.111 R)
• M23: 42,159,822 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 11.5

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 8.45 AU - 9.87 AU

Year: 10444 Days

Day: 5.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,614,776 km

• M1: 143,464 km (0.092 R)
• M2: 541,544 km (0.074 R)
• M3: 930,648 km (0.114 R)
• M4: 1,556,267 km (0.105 R)
• M5: 2,727,917 km (0.095 R)
• M6: 3,939,810 km (0.106 R)
• M7: 4,328,465 km (0.11 R)
• M8: 5,281,553 km (0.119 R)
• M9: 5,790,485 km (0.092 R)
• M10: 6,406,678 km (0.088 R)
• M11: 6,867,739 km (0.092 R)
• M12: 7,685,291 km (0.114 R)
• M13: 8,385,110 km (0.083 R)
• M14: 9,270,730 km (0.038 R)
• M15: 10,372,967 km (0.115 R)
• M16: 12,836,694 km (0.042 R)
• M17: 13,200,516 km (0.078 R)
• M18: 14,076,262 km (0.092 R)
• M19: 14,528,496 km (0.091 R)
• M20: 15,394,070 km (0.113 R)
• M21: 16,506,180 km (0.034 R)
• M22: 21,665,212 km (0.107 R)
• M23: 22,355,607 km (0.067 R)
• M24: 22,794,676 km (0.042 R)
• M25: 24,888,448 km (0.041 R)
• M26: 25,550,419 km (0.108 R)
• M27: 26,614,359 km (0.092 R)
• M28: 31,275,828 km (0.093 R)
• M29: 34,669,307 km (0.087 R)
• M30: 35,495,087 km (0.102 R)
• M31: 38,426,008 km (0.103 R)
• M32: 43,937,194 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 713.5

Radius: 6.8

Gravity: 15.43 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 12 AU - 18.26 AU

Year: 22171 Days

Day: 18.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 93.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,614,776 km

• M1: 86,617 km (0.077 R)
• M2: 315,951 km (0.055 R)
• M3: 848,818 km (0.066 R)
• M4: 1,088,773 km (0.095 R)
• M5: 1,374,056 km (0.068 R)
• M6: 1,709,006 km (0.095 R)
• M7: 2,139,399 km (0.106 R)
• M8: 2,426,178 km (0.106 R)
• M9: 3,159,657 km (0.098 R)
• M10: 4,402,067 km (0.099 R)
• M11: 4,794,313 km (0.118 R)
• M12: 5,017,961 km (0.088 R)
• M13: 5,607,826 km (0.113 R)
• M14: 6,112,120 km (0.105 R)
• M15: 6,738,337 km (0.069 R)
• M16: 7,705,786 km (0.098 R)
• M17: 10,094,416 km (0.079 R)
• M18: 13,444,510 km (0.068 R)
• M19: 14,655,954 km (0.083 R)
• M20: 15,611,136 km (0.094 R)
• M21: 16,354,338 km (0.088 R)
• M22: 19,849,094 km (0.095 R)
• M23: 22,230,393 km (0.092 R)
• M24: 28,635,725 km (0.113 R)
• M25: 29,498,456 km (0.067 R)
• M26: 30,378,241 km (0.097 R)
• M27: 32,190,171 km (0.055 R)
• M28: 35,602,947 km (0.099 R)
• M29: 38,056,651 km (0.067 R)
• M30: 40,313,335 km (0.044 R)
• M31: 51,849,276 km (0.096 R)
• M32: 52,395,457 km (0.087 R)
• M33: 59,251,977 km (0.099 R)
• M34: 60,651,016 km (0.1 R)
• M35: 72,419,581 km (0.069 R)
• M36: 73,559,367 km (0.063 R)
• M37: 78,956,410 km (0.118 R)
• M38: 81,383,037 km (0.095 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 13,773 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit