🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.57 AU - 0.69 AU

Year: 328 Days

Day: 26.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.3

Radius: 13.4

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.03 AU - 1.19 AU

Year: 767 Days

Day: 7 Hours

Environment

Temp: -174 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,283,588 km

• M1: 166,802 km (0.072 R)
• M2: 603,777 km (0.108 R)
• M3: 1,115,252 km (0.075 R)
• M4: 1,535,772 km (0.101 R)
• M5: 2,111,275 km (0.056 R)
• M6: 2,562,312 km (0.06 R)
• M7: 3,473,513 km (0.112 R)
• M8: 4,446,946 km (0.114 R)
• M9: 5,075,557 km (0.111 R)
• M10: 6,656,507 km (0.096 R)
• M11: 7,640,562 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.8

Radius: 10.2

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.14 AU - 1.56 AU

Year: 1029 Days

Day: 7.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,283,588 km

• M1: 126,859 km (0.051 R)
• M2: 766,839 km (0.114 R)
• M3: 1,503,907 km (0.083 R)
• M4: 3,200,048 km (0.097 R)
• M5: 4,057,842 km (0.081 R)
• M6: 4,583,380 km (0.045 R)
• M7: 5,098,595 km (0.07 R)
• M8: 5,534,224 km (0.111 R)
• M9: 6,308,542 km (0.066 R)
• M10: 7,176,659 km (0.054 R)
• M11: 8,122,416 km (0.095 R)
• M12: 8,533,661 km (0.041 R)
• M13: 9,176,633 km (0.074 R)

Asteroid Belt

Center: 1.9 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.1

Radius: 9.7

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.38 AU - 2.52 AU

Year: 2516 Days

Day: 5.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,283,588 km

• M1: 122,221 km (0.109 R)
• M2: 698,173 km (0.104 R)
• M3: 1,324,091 km (0.083 R)
• M4: 1,794,576 km (0.068 R)
• M5: 2,208,214 km (0.094 R)
• M6: 3,229,220 km (0.119 R)
• M7: 3,575,090 km (0.116 R)
• M8: 3,925,448 km (0.101 R)
• M9: 4,277,302 km (0.099 R)
• M10: 6,337,415 km (0.092 R)
• M11: 6,735,943 km (0.087 R)
• M12: 9,415,989 km (0.105 R)
• M13: 10,435,349 km (0.092 R)
• M14: 10,992,152 km (0.114 R)
• M15: 11,864,158 km (0.086 R)
• M16: 13,465,604 km (0.089 R)
• M17: 14,856,565 km (0.099 R)
• M18: 15,510,307 km (0.12 R)
• M19: 16,929,243 km (0.074 R)
• M20: 18,318,409 km (0.107 R)
• M21: 20,758,949 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.3

Radius: 12.3

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.1 AU - 3.86 AU

Year: 4259 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,283,588 km

• M1: 153,039 km (0.107 R)
• M2: 628,909 km (0.036 R)
• M3: 1,643,333 km (0.093 R)
• M4: 2,690,817 km (0.104 R)
• M5: 5,209,895 km (0.101 R)
• M6: 7,230,514 km (0.044 R)
• M7: 9,046,782 km (0.089 R)
• M8: 9,935,543 km (0.059 R)
• M9: 10,444,325 km (0.12 R)
• M10: 14,562,006 km (0.068 R)
• M11: 17,129,405 km (0.054 R)
• M12: 17,738,568 km (0.116 R)
• M13: 19,521,325 km (0.097 R)
• M14: 20,253,457 km (0.063 R)
• M15: 21,003,691 km (0.12 R)
• M16: 23,291,940 km (0.081 R)
• M17: 24,267,467 km (0.103 R)
• M18: 25,662,767 km (0.06 R)
• M19: 27,605,594 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.2

Radius: 3.2

Gravity: 39.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.37 AU - 7.53 AU

Year: 10746 Days

Day: 17 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 42,283,588 km

• M1: 39,793 km (0.067 R)
• M2: 141,370 km (0.064 R)
• M3: 278,102 km (0.082 R)
• M4: 527,482 km (0.074 R)
• M5: 1,048,980 km (0.101 R)
• M6: 1,557,912 km (0.031 R)
• M7: 1,700,180 km (0.108 R)
• M8: 2,043,806 km (0.062 R)
• M9: 2,162,288 km (0.071 R)
• M10: 2,908,931 km (0.048 R)
• M11: 3,469,324 km (0.041 R)
• M12: 4,205,495 km (0.104 R)
• M13: 4,653,541 km (0.11 R)
• M14: 6,803,113 km (0.114 R)
• M15: 7,821,874 km (0.076 R)
• M16: 10,059,110 km (0.111 R)
• M17: 10,907,480 km (0.112 R)
• M18: 11,534,295 km (0.073 R)
• M19: 13,031,770 km (0.107 R)
• M20: 13,677,285 km (0.096 R)
• M21: 15,031,893 km (0.056 R)
• M22: 15,416,360 km (0.065 R)
• M23: 15,676,211 km (0.088 R)
• M24: 17,861,387 km (0.096 R)
• M25: 18,292,528 km (0.089 R)
• M26: 18,952,255 km (0.066 R)
• M27: 20,396,622 km (0.081 R)
• M28: 21,587,571 km (0.079 R)
• M29: 23,760,331 km (0.104 R)
• M30: 25,167,448 km (0.106 R)
• M31: 27,761,625 km (0.07 R)
• M32: 29,222,149 km (0.059 R)
• M33: 33,041,981 km (0.079 R)
• M34: 35,238,975 km (0.11 R)
• M35: 37,181,354 km (0.08 R)
• M36: 40,780,978 km (0.076 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: 536 - 15,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit