🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.53 AU - 0.59 AU

Year: 271 Days

Day: 46.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.45 AU - 0.69 AU

Year: 278 Days

Day: 12.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,344,149 km

• M1: 109,506 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.8

Radius: 9.1

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.98 AU - 1.06 AU

Year: 665 Days

Day: 10.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,344,149 km

• M1: 113,246 km (0.091 R)
• M2: 468,989 km (0.092 R)
• M3: 780,602 km (0.111 R)
• M4: 1,283,849 km (0.11 R)
• M5: 1,762,861 km (0.115 R)
• M6: 2,177,247 km (0.083 R)
• M7: 2,776,536 km (0.045 R)
• M8: 3,089,944 km (0.115 R)
• M9: 3,979,004 km (0.117 R)
• M10: 4,276,554 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.3

Radius: 10.3

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.13 AU - 1.33 AU

Year: 881 Days

Day: 12.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 127.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,344,149 km

• M1: 128,205 km (0.079 R)
• M2: 604,675 km (0.072 R)
• M3: 927,507 km (0.081 R)
• M4: 1,456,186 km (0.055 R)
• M5: 1,800,410 km (0.119 R)
• M6: 2,513,543 km (0.119 R)
• M7: 3,405,147 km (0.08 R)
• M8: 4,801,044 km (0.092 R)
• M9: 5,972,695 km (0.098 R)
• M10: 6,568,394 km (0.098 R)
• M11: 6,916,209 km (0.103 R)
• M12: 7,498,444 km (0.088 R)
• M13: 8,844,376 km (0.035 R)
• M14: 9,442,917 km (0.087 R)
• M15: 9,886,923 km (0.073 R)
• M16: 10,344,842 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.7

Radius: 13.1

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.19 AU - 1.87 AU

Year: 1222 Days

Day: 9.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,344,149 km

• M1: 165,904 km (0.059 R)
• M2: 637,736 km (0.064 R)
• M3: 1,183,319 km (0.079 R)
• M4: 1,736,831 km (0.113 R)
• M5: 2,294,831 km (0.115 R)
• M6: 3,519,440 km (0.101 R)
• M7: 3,995,909 km (0.083 R)
• M8: 4,743,449 km (0.1 R)
• M9: 5,223,210 km (0.119 R)
• M10: 5,669,460 km (0.107 R)
• M11: 6,304,204 km (0.076 R)
• M12: 7,011,203 km (0.073 R)
• M13: 7,582,368 km (0.111 R)
• M14: 8,468,436 km (0.059 R)
• M15: 10,022,010 km (0.078 R)
• M16: 10,446,868 km (0.109 R)
• M17: 11,020,576 km (0.067 R)
• M18: 12,231,122 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.6

Radius: 11.4

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.01 AU - 2.35 AU

Year: 2078 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,344,149 km

• M1: 142,268 km (0.119 R)
• M2: 497,862 km (0.03 R)
• M3: 1,197,381 km (0.086 R)
• M4: 1,793,828 km (0.09 R)
• M5: 2,566,800 km (0.107 R)
• M6: 2,990,312 km (0.058 R)
• M7: 3,549,359 km (0.106 R)
• M8: 4,900,527 km (0.109 R)
• M9: 5,780,312 km (0.106 R)
• M10: 6,405,332 km (0.088 R)
• M11: 8,102,669 km (0.112 R)
• M12: 8,819,094 km (0.111 R)
• M13: 9,192,789 km (0.118 R)
• M14: 9,683,769 km (0.107 R)
• M15: 10,642,243 km (0.115 R)
• M16: 13,050,769 km (0.07 R)
• M17: 13,852,613 km (0.04 R)
• M18: 14,452,052 km (0.072 R)
• M19: 16,919,968 km (0.113 R)
• M20: 17,658,533 km (0.116 R)
• M21: 18,199,179 km (0.093 R)
• M22: 18,584,095 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.4

Radius: 12.1

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.83 AU - 4.45 AU

Year: 5439 Days

Day: 14.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,344,149 km

• M1: 151,243 km (0.102 R)
• M2: 596,297 km (0.101 R)
• M3: 1,005,746 km (0.086 R)
• M4: 1,990,998 km (0.064 R)
• M5: 2,398,652 km (0.079 R)
• M6: 3,259,738 km (0.099 R)
• M7: 3,901,961 km (0.12 R)
• M8: 6,118,403 km (0.098 R)
• M9: 8,416,376 km (0.103 R)
• M10: 9,197,277 km (0.119 R)
• M11: 11,239,438 km (0.027 R)
• M12: 13,294,464 km (0.114 R)
• M13: 13,789,483 km (0.037 R)
• M14: 15,110,283 km (0.07 R)
• M15: 15,832,092 km (0.106 R)
• M16: 16,893,938 km (0.108 R)
• M17: 17,737,371 km (0.052 R)
• M18: 18,951,357 km (0.114 R)
• M19: 19,933,318 km (0.076 R)
• M20: 22,151,406 km (0.09 R)
• M21: 27,248,355 km (0.096 R)
• M22: 28,771,710 km (0.098 R)
• M23: 30,351,164 km (0.11 R)
• M24: 31,403,435 km (0.077 R)
• M25: 31,987,615 km (0.093 R)
• M26: 33,682,110 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.7

Radius: 14.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.99 AU - 5.91 AU

Year: 8215 Days

Day: 5.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,344,149 km

• M1: 184,155 km (0.036 R)
• M2: 803,341 km (0.115 R)
• M3: 1,556,416 km (0.107 R)
• M4: 2,110,826 km (0.09 R)
• M5: 3,072,740 km (0.069 R)
• M6: 3,581,373 km (0.047 R)
• M7: 4,479,559 km (0.062 R)
• M8: 6,103,892 km (0.111 R)
• M9: 6,612,076 km (0.107 R)
• M10: 7,714,014 km (0.102 R)
• M11: 9,401,478 km (0.092 R)
• M12: 12,899,675 km (0.083 R)
• M13: 13,863,534 km (0.08 R)
• M14: 16,973,823 km (0.106 R)
• M15: 18,354,163 km (0.1 R)
• M16: 19,965,481 km (0.106 R)
• M17: 21,255,165 km (0.115 R)
• M18: 25,365,217 km (0.042 R)
• M19: 26,494,082 km (0.115 R)
• M20: 27,557,873 km (0.073 R)
• M21: 30,185,709 km (0.032 R)
• M22: 31,346,289 km (0.029 R)
• M23: 32,317,778 km (0.097 R)
• M24: 33,532,363 km (0.115 R)
• M25: 37,238,800 km (0.104 R)
• M26: 37,720,505 km (0.041 R)
• M27: 46,421,715 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.3

Radius: 5.3

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 9.9 AU - 11 AU

Year: 21812 Days

Day: 20.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,344,149 km

• M1: 65,973 km (0.059 R)
• M2: 506,838 km (0.109 R)
• M3: 3,733,514 km (0.115 R)
• M4: 4,923,565 km (0.099 R)
• M5: 5,567,285 km (0.112 R)
• M6: 6,026,550 km (0.09 R)
• M7: 6,346,390 km (0.119 R)
• M8: 7,195,957 km (0.086 R)
• M9: 8,263,936 km (0.088 R)
• M10: 9,701,572 km (0.047 R)
• M11: 11,358,069 km (0.072 R)
• M12: 12,348,556 km (0.115 R)
• M13: 14,713,250 km (0.108 R)
• M14: 16,039,585 km (0.104 R)
• M15: 18,011,135 km (0.078 R)
• M16: 20,763,137 km (0.07 R)
• M17: 29,407,052 km (0.117 R)
• M18: 29,979,413 km (0.112 R)
• M19: 31,980,883 km (0.071 R)
• M20: 36,247,564 km (0.099 R)
• M21: 46,968,795 km (0.112 R)
• M22: 49,019,333 km (0.094 R)
• M23: 51,955,640 km (0.088 R)
• M24: 53,467,027 km (0.111 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 10,681 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit