🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.49 AU - 0.69 AU

Year: 297 Days

Day: 38.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,158,478 km

• M1: 76,145 km (0.051 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.59 AU - 0.67 AU

Year: 328 Days

Day: 17.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,158,478 km

• M1: 40,391 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.9

Radius: 14.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.69 AU - 1.05 AU

Year: 532 Days

Day: 11.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,158,478 km

• M1: 182,809 km (0.041 R)
• M2: 783,743 km (0.114 R)
• M3: 1,711,549 km (0.056 R)
• M4: 2,820,219 km (0.044 R)
• M5: 3,934,424 km (0.119 R)
• M6: 5,106,224 km (0.058 R)
• M7: 6,115,262 km (0.066 R)
• M8: 7,127,291 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.2

Radius: 12.3

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.8 AU - 0.96 AU

Year: 542 Days

Day: 8 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,158,478 km

• M1: 153,039 km (0.092 R)
• M2: 647,759 km (0.106 R)
• M3: 1,217,727 km (0.063 R)
• M4: 1,703,471 km (0.111 R)
• M5: 2,142,092 km (0.069 R)
• M6: 2,788,953 km (0.038 R)
• M7: 3,937,416 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.7

Radius: 11.9

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.76 AU - 1.24 AU

Year: 656 Days

Day: 6.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,158,478 km

• M1: 148,700 km (0.057 R)
• M2: 549,623 km (0.094 R)
• M3: 966,701 km (0.101 R)
• M4: 1,514,529 km (0.045 R)
• M5: 1,995,785 km (0.082 R)
• M6: 2,536,432 km (0.062 R)
• M7: 3,136,768 km (0.119 R)
• M8: 3,530,510 km (0.119 R)
• M9: 4,768,133 km (0.092 R)
• M10: 5,834,467 km (0.11 R)
• M11: 6,256,033 km (0.084 R)
• M12: 7,032,297 km (0.065 R)
• M13: 7,488,271 km (0.086 R)

Asteroid Belt

Center: 1.3 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.5

Radius: 14.3

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.4 AU - 1.78 AU

Year: 1315 Days

Day: 5.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,158,478 km

• M1: 178,321 km (0.105 R)
• M2: 742,005 km (0.117 R)
• M3: 1,564,046 km (0.068 R)
• M4: 2,158,398 km (0.111 R)
• M5: 2,834,132 km (0.118 R)
• M6: 3,964,344 km (0.07 R)
• M7: 4,614,197 km (0.112 R)
• M8: 5,188,653 km (0.082 R)
• M9: 6,059,611 km (0.105 R)
• M10: 7,283,023 km (0.109 R)
• M11: 7,871,242 km (0.119 R)
• M12: 10,118,501 km (0.105 R)
• M13: 10,920,495 km (0.091 R)
• M14: 11,692,570 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.1

Radius: 11.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.64 AU - 2.16 AU

Year: 1718 Days

Day: 11.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,158,478 km

• M1: 147,952 km (0.086 R)
• M2: 553,961 km (0.116 R)
• M3: 929,003 km (0.08 R)
• M4: 1,314,816 km (0.095 R)
• M5: 2,055,624 km (0.107 R)
• M6: 2,602,704 km (0.082 R)
• M7: 4,563,034 km (0.102 R)
• M8: 5,229,044 km (0.104 R)
• M9: 5,715,686 km (0.116 R)
• M10: 6,634,217 km (0.085 R)
• M11: 7,308,155 km (0.047 R)
• M12: 8,418,321 km (0.102 R)
• M13: 9,028,979 km (0.084 R)
• M14: 10,469,906 km (0.041 R)
• M15: 12,350,800 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.3

Radius: 8.8

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.34 AU - 6.68 AU

Year: 8485 Days

Day: 12.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,158,478 km

• M1: 109,655 km (0.067 R)
• M2: 562,937 km (0.047 R)
• M3: 873,352 km (0.094 R)
• M4: 1,184,516 km (0.106 R)
• M5: 1,801,458 km (0.105 R)
• M6: 2,426,178 km (0.054 R)
• M7: 2,717,894 km (0.089 R)
• M8: 3,491,614 km (0.111 R)
• M9: 4,210,432 km (0.051 R)
• M10: 4,518,604 km (0.104 R)
• M11: 6,547,600 km (0.09 R)
• M12: 11,149,529 km (0.095 R)
• M13: 12,129,545 km (0.082 R)
• M14: 13,827,630 km (0.107 R)
• M15: 17,188,646 km (0.07 R)
• M16: 17,473,330 km (0.113 R)
• M17: 20,815,796 km (0.077 R)
• M18: 21,220,757 km (0.065 R)
• M19: 21,713,533 km (0.106 R)
• M20: 26,310,077 km (0.04 R)
• M21: 27,166,375 km (0.093 R)
• M22: 27,455,996 km (0.116 R)
• M23: 29,035,152 km (0.068 R)
• M24: 33,800,143 km (0.113 R)
• M25: 34,359,789 km (0.054 R)
• M26: 35,153,555 km (0.075 R)
• M27: 36,308,750 km (0.078 R)
• M28: 37,013,954 km (0.035 R)
• M29: 37,968,388 km (0.055 R)
• M30: 38,694,836 km (0.106 R)
• M31: 41,565,768 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.6

Radius: 6.1

Gravity: 13.7 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.36 AU - 8.84 AU

Year: 12411 Days

Day: 18 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,158,478 km

• M1: 87,814 km (0.102 R)
• M2: 339,737 km (0.114 R)
• M3: 533,017 km (0.113 R)
• M4: 794,514 km (0.06 R)
• M5: 1,441,675 km (0.096 R)
• M6: 1,827,039 km (0.104 R)
• M7: 2,132,368 km (0.1 R)
• M8: 2,393,117 km (0.051 R)
• M9: 3,477,403 km (0.037 R)
• M10: 4,982,507 km (0.083 R)
• M11: 6,449,613 km (0.118 R)
• M12: 9,448,751 km (0.028 R)
• M13: 10,205,716 km (0.096 R)
• M14: 10,785,857 km (0.106 R)
• M15: 11,166,434 km (0.103 R)
• M16: 13,640,184 km (0.119 R)
• M17: 14,671,662 km (0.065 R)
• M18: 15,004,367 km (0.114 R)
• M19: 17,849,868 km (0.105 R)
• M20: 22,585,688 km (0.115 R)
• M21: 23,751,355 km (0.064 R)
• M22: 24,302,623 km (0.106 R)
• M23: 25,526,333 km (0.041 R)
• M24: 26,201,917 km (0.095 R)
• M25: 28,403,101 km (0.105 R)
• M26: 30,616,251 km (0.11 R)
• M27: 31,159,591 km (0.068 R)
• M28: 31,931,217 km (0.08 R)
• M29: 33,055,445 km (0.118 R)
• M30: 34,438,926 km (0.12 R)
• M31: 38,694,387 km (0.079 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 463 - 19,315 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit