🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.82 AU - 1.18 AU

Year: 363 Days

Day: 27.9 Hours

Environment

Temp: 27 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.3 AU - 1.86 AU

Year: 722 Days

Day: 21.1 Hours

Environment

Temp: -37 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.57 AU - 1.67 AU

Year: 749 Days

Day: 42.4 Hours

Environment

Temp: -48 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.55 AU - 4.79 AU

Year: 3095 Days

Day: 30.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 179.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 11.4

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.24 AU - 5.4 AU

Year: 4460 Days

Day: 12.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 94,850,230 km

• M1: 141,819 km (0.09 R)
• M2: 572,062 km (0.11 R)
• M3: 938,727 km (0.114 R)
• M4: 1,332,767 km (0.084 R)
• M5: 1,750,445 km (0.059 R)
• M6: 2,182,184 km (0.089 R)
• M7: 2,787,756 km (0.089 R)
• M8: 3,187,631 km (0.1 R)
• M9: 3,947,738 km (0.078 R)
• M10: 4,312,009 km (0.028 R)
• M11: 6,150,417 km (0.088 R)
• M12: 6,579,464 km (0.098 R)
• M13: 8,241,048 km (0.106 R)
• M14: 8,725,445 km (0.095 R)
• M15: 9,874,656 km (0.089 R)
• M16: 10,811,887 km (0.102 R)
• M17: 11,668,036 km (0.093 R)
• M18: 13,928,011 km (0.096 R)
• M19: 14,616,310 km (0.032 R)
• M20: 15,106,094 km (0.119 R)
• M21: 15,832,691 km (0.112 R)
• M22: 16,641,118 km (0.055 R)
• M23: 18,655,602 km (0.084 R)
• M24: 19,623,052 km (0.053 R)
• M25: 23,979,491 km (0.096 R)
• M26: 25,668,751 km (0.075 R)
• M27: 27,190,311 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691

Radius: 9.2

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 6.35 AU - 7.27 AU

Year: 6459 Days

Day: 12.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 94,850,230 km

• M1: 114,742 km (0.114 R)
• M2: 422,913 km (0.09 R)
• M3: 773,271 km (0.105 R)
• M4: 1,377,946 km (0.041 R)
• M5: 1,716,336 km (0.113 R)
• M6: 2,017,776 km (0.066 R)
• M7: 3,001,083 km (0.086 R)
• M8: 3,312,396 km (0.107 R)
• M9: 4,509,927 km (0.088 R)
• M10: 6,885,840 km (0.099 R)
• M11: 7,505,475 km (0.068 R)
• M12: 8,483,695 km (0.111 R)
• M13: 9,067,277 km (0.098 R)
• M14: 9,456,530 km (0.104 R)
• M15: 13,092,506 km (0.103 R)
• M16: 15,099,063 km (0.116 R)
• M17: 16,207,134 km (0.065 R)
• M18: 16,910,394 km (0.057 R)
• M19: 21,185,003 km (0.114 R)
• M20: 23,047,646 km (0.086 R)
• M21: 23,936,856 km (0.095 R)
• M22: 24,848,805 km (0.12 R)
• M23: 25,270,820 km (0.109 R)
• M24: 26,653,703 km (0.082 R)
• M25: 30,909,762 km (0.112 R)
• M26: 31,990,757 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.5

Radius: 4.9

Gravity: 26.38 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 12.81 AU - 16.99 AU

Year: 20903 Days

Day: 24.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 94,850,230 km

• M1: 61,036 km (0.075 R)
• M2: 303,235 km (0.066 R)
• M3: 476,768 km (0.111 R)
• M4: 635,342 km (0.106 R)
• M5: 873,203 km (0.084 R)
• M6: 1,999,525 km (0.063 R)
• M7: 2,311,586 km (0.101 R)
• M8: 2,560,667 km (0.076 R)
• M9: 3,112,533 km (0.071 R)
• M10: 3,473,812 km (0.088 R)
• M11: 3,893,733 km (0.109 R)
• M12: 5,672,602 km (0.041 R)
• M13: 6,211,304 km (0.09 R)
• M14: 7,105,600 km (0.093 R)
• M15: 8,185,098 km (0.076 R)
• M16: 11,226,423 km (0.034 R)
• M17: 13,243,750 km (0.092 R)
• M18: 13,674,442 km (0.068 R)
• M19: 14,488,105 km (0.112 R)
• M20: 19,227,066 km (0.077 R)
• M21: 19,686,182 km (0.115 R)
• M22: 27,480,082 km (0.12 R)
• M23: 33,153,581 km (0.061 R)
• M24: 33,416,574 km (0.091 R)
• M25: 38,536,411 km (0.09 R)
• M26: 48,245,313 km (0.112 R)
• M27: 48,752,600 km (0.085 R)
• M28: 53,478,396 km (0.051 R)
• M29: 55,119,186 km (0.08 R)
• M30: 56,418,144 km (0.077 R)
• M31: 57,169,574 km (0.082 R)
• M32: 62,818,091 km (0.054 R)
• M33: 63,625,321 km (0.05 R)
• M34: 66,713,769 km (0.091 R)
• M35: 68,188,654 km (0.081 R)
• M36: 69,469,960 km (0.054 R)
• M37: 69,900,652 km (0.027 R)
• M38: 74,081,165 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660

Radius: 7

Gravity: 13.47 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 15.5 AU - 21.02 AU

Year: 28358 Days

Day: 19.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 94,850,230 km

• M1: 89,160 km (0.102 R)
• M2: 325,375 km (0.12 R)
• M3: 603,627 km (0.065 R)
• M4: 977,323 km (0.067 R)
• M5: 1,714,541 km (0.09 R)
• M6: 2,123,093 km (0.07 R)
• M7: 2,910,127 km (0.071 R)
• M8: 3,649,739 km (0.119 R)
• M9: 4,508,281 km (0.099 R)
• M10: 5,839,104 km (0.102 R)
• M11: 6,618,210 km (0.069 R)
• M12: 7,057,878 km (0.064 R)
• M13: 8,722,304 km (0.111 R)
• M14: 10,051,780 km (0.06 R)
• M15: 12,955,624 km (0.113 R)
• M16: 14,516,977 km (0.113 R)
• M17: 14,926,128 km (0.047 R)
• M18: 17,088,116 km (0.109 R)
• M19: 18,864,890 km (0.081 R)
• M20: 20,250,465 km (0.109 R)
• M21: 20,968,086 km (0.081 R)
• M22: 22,129,714 km (0.111 R)
• M23: 23,445,427 km (0.059 R)
• M24: 24,696,514 km (0.038 R)
• M25: 27,579,564 km (0.041 R)
• M26: 30,147,262 km (0.093 R)
• M27: 38,799,554 km (0.064 R)
• M28: 40,065,302 km (0.098 R)
• M29: 40,546,857 km (0.116 R)
• M30: 45,057,083 km (0.105 R)
• M31: 45,403,851 km (0.12 R)
• M32: 46,809,024 km (0.089 R)
• M33: 53,880,665 km (0.118 R)
• M34: 57,059,769 km (0.074 R)
• M35: 69,630,927 km (0.1 R)
• M36: 73,637,607 km (0.051 R)
• M37: 76,556,561 km (0.116 R)
• M38: 77,546,450 km (0.098 R)
• M39: 86,842,611 km (0.07 R)
• M40: 89,004,600 km (0.108 R)

Kuiper Belt

Range: 30.2 - 58.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 11,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit