🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.47 AU - 0.59 AU

Year: 245 Days

Day: 14.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,065,708 km

• M1: 390,450 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.6

Radius: 8.1

Gravity: 11.14 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.87 AU - 1.03 AU

Year: 589 Days

Day: 8.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,065,708 km

• M1: 100,679 km (0.105 R)
• M2: 430,543 km (0.112 R)
• M3: 821,592 km (0.094 R)
• M4: 1,258,268 km (0.091 R)
• M5: 1,885,532 km (0.096 R)
• M6: 2,202,529 km (0.116 R)
• M7: 2,492,001 km (0.087 R)
• M8: 2,886,790 km (0.095 R)
• M9: 3,234,605 km (0.039 R)
• M10: 3,900,316 km (0.093 R)
• M11: 4,898,283 km (0.115 R)
• M12: 5,448,055 km (0.076 R)
• M13: 6,448,416 km (0.078 R)
• M14: 6,773,044 km (0.058 R)
• M15: 7,108,741 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.4

Radius: 13.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.19 AU - 1.23 AU

Year: 846 Days

Day: 9.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,065,708 km

• M1: 171,888 km (0.088 R)
• M2: 661,223 km (0.099 R)
• M3: 1,301,651 km (0.092 R)
• M4: 1,891,515 km (0.111 R)
• M5: 2,371,725 km (0.055 R)
• M6: 3,229,968 km (0.071 R)
• M7: 4,476,118 km (0.097 R)
• M8: 5,275,419 km (0.11 R)
• M9: 5,788,839 km (0.107 R)
• M10: 6,298,070 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.1

Radius: 8.4

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.31 AU - 2.55 AU

Year: 2408 Days

Day: 13 Hours

Environment

Temp: -187 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,065,708 km

• M1: 106,663 km (0.108 R)
• M2: 383,719 km (0.077 R)
• M3: 648,507 km (0.066 R)
• M4: 953,836 km (0.076 R)
• M5: 1,239,418 km (0.111 R)
• M6: 1,916,648 km (0.089 R)
• M7: 2,178,145 km (0.104 R)
• M8: 2,520,724 km (0.087 R)
• M9: 4,435,278 km (0.091 R)
• M10: 5,128,514 km (0.114 R)
• M11: 5,995,733 km (0.067 R)
• M12: 6,700,937 km (0.111 R)
• M13: 7,073,735 km (0.083 R)
• M14: 7,430,077 km (0.112 R)
• M15: 8,571,360 km (0.09 R)
• M16: 8,908,254 km (0.045 R)
• M17: 9,394,746 km (0.092 R)
• M18: 11,000,081 km (0.053 R)
• M19: 15,376,417 km (0.117 R)
• M20: 16,280,587 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.8

Radius: 8.3

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.23 AU - 3.03 AU

Year: 2712 Days

Day: 14.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,065,708 km

• M1: 103,671 km (0.044 R)
• M2: 391,946 km (0.076 R)
• M3: 664,813 km (0.104 R)
• M4: 940,522 km (0.111 R)
• M5: 1,531,284 km (0.068 R)
• M6: 1,992,793 km (0.114 R)
• M7: 2,262,817 km (0.058 R)
• M8: 2,965,927 km (0.115 R)
• M9: 3,304,168 km (0.052 R)
• M10: 3,771,811 km (0.111 R)
• M11: 7,092,585 km (0.098 R)
• M12: 7,475,256 km (0.12 R)
• M13: 8,133,786 km (0.101 R)
• M14: 8,799,347 km (0.077 R)
• M15: 10,516,282 km (0.049 R)
• M16: 11,715,308 km (0.109 R)
• M17: 12,445,645 km (0.113 R)
• M18: 12,762,045 km (0.108 R)
• M19: 13,660,081 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807

Radius: 13.4

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.91 AU - 3.27 AU

Year: 3454 Days

Day: 10.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,065,708 km

• M1: 166,652 km (0.101 R)
• M2: 632,500 km (0.073 R)
• M3: 1,174,343 km (0.099 R)
• M4: 1,847,833 km (0.092 R)
• M5: 3,008,114 km (0.075 R)
• M6: 3,450,176 km (0.102 R)
• M7: 3,893,733 km (0.115 R)
• M8: 4,421,215 km (0.092 R)
• M9: 5,757,573 km (0.11 R)
• M10: 6,238,979 km (0.074 R)
• M11: 6,901,847 km (0.119 R)
• M12: 7,413,173 km (0.099 R)
• M13: 8,227,733 km (0.106 R)
• M14: 8,988,588 km (0.103 R)
• M15: 9,875,404 km (0.105 R)
• M16: 10,651,069 km (0.091 R)
• M17: 12,370,846 km (0.081 R)
• M18: 13,419,079 km (0.077 R)
• M19: 14,320,107 km (0.069 R)
• M20: 15,314,484 km (0.08 R)
• M21: 15,965,982 km (0.092 R)
• M22: 24,330,298 km (0.067 R)

Asteroid Belt

Center: 4.54 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.1

Radius: 10.7

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.39 AU - 6.59 AU

Year: 9321 Days

Day: 14.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 159.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,065,708 km

• M1: 133,142 km (0.11 R)
• M2: 646,562 km (0.042 R)
• M3: 1,059,452 km (0.054 R)
• M4: 1,412,653 km (0.069 R)
• M5: 1,886,728 km (0.096 R)
• M6: 3,341,717 km (0.107 R)
• M7: 6,161,039 km (0.116 R)
• M8: 7,580,722 km (0.08 R)
• M9: 8,175,374 km (0.115 R)
• M10: 9,415,690 km (0.1 R)
• M11: 9,798,361 km (0.111 R)
• M12: 10,640,149 km (0.119 R)
• M13: 12,877,983 km (0.086 R)
• M14: 17,424,562 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552

Radius: 5.3

Gravity: 19.65 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.31 AU - 6.65 AU

Year: 10488 Days

Day: 19.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,065,708 km

• M1: 65,973 km (0.108 R)
• M2: 575,802 km (0.116 R)
• M3: 864,676 km (0.11 R)
• M4: 1,108,071 km (0.087 R)
• M5: 1,615,358 km (0.061 R)
• M6: 2,338,664 km (0.086 R)
• M7: 2,509,953 km (0.104 R)
• M8: 6,605,793 km (0.059 R)
• M9: 7,346,153 km (0.113 R)
• M10: 10,147,074 km (0.099 R)
• M11: 12,232,319 km (0.115 R)
• M12: 19,853,732 km (0.061 R)
• M13: 21,468,342 km (0.076 R)
• M14: 23,784,117 km (0.098 R)
• M15: 26,071,917 km (0.061 R)
• M16: 34,146,312 km (0.074 R)
• M17: 35,058,111 km (0.084 R)
• M18: 36,103,053 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 130.4

Radius: 7.5

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7 AU - 7.6 AU

Year: 12541 Days

Day: 23.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,065,708 km

• M1: 93,349 km (0.102 R)
• M2: 397,930 km (0.107 R)
• M3: 708,645 km (0.107 R)
• M4: 965,205 km (0.083 R)
• M5: 1,361,041 km (0.114 R)
• M6: 1,597,406 km (0.071 R)
• M7: 2,600,011 km (0.089 R)
• M8: 3,763,434 km (0.073 R)
• M9: 4,138,027 km (0.069 R)
• M10: 7,386,096 km (0.111 R)
• M11: 9,623,481 km (0.113 R)
• M12: 9,926,268 km (0.097 R)
• M13: 10,734,096 km (0.056 R)
• M14: 11,344,306 km (0.113 R)
• M15: 13,313,612 km (0.07 R)
• M16: 14,239,473 km (0.115 R)
• M17: 21,881,531 km (0.117 R)
• M18: 29,818,446 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 15,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit