🌌 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 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.3

Radius: 9.1

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.44 AU - 0.64 AU

Year: 274 Days

Day: 12.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,667,812 km

• M1: 113,096 km (0.057 R)
• M2: 399,576 km (0.073 R)
• M3: 934,388 km (0.076 R)
• M4: 1,300,604 km (0.112 R)
• M5: 1,965,716 km (0.05 R)
• M6: 2,305,602 km (0.07 R)
• M7: 2,918,206 km (0.12 R)
• M8: 3,352,488 km (0.097 R)
• M9: 3,970,178 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.7

Radius: 10.8

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.71 AU - 0.91 AU

Year: 503 Days

Day: 10.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,667,812 km

• M1: 134,339 km (0.112 R)
• M2: 528,828 km (0.094 R)
• M3: 930,349 km (0.06 R)
• M4: 1,368,671 km (0.098 R)
• M5: 2,056,073 km (0.094 R)
• M6: 2,601,806 km (0.062 R)
• M7: 3,040,726 km (0.073 R)
• M8: 3,427,287 km (0.113 R)
• M9: 3,832,997 km (0.092 R)
• M10: 4,509,628 km (0.07 R)
• M11: 5,146,765 km (0.117 R)
• M12: 5,522,106 km (0.069 R)
• M13: 5,915,698 km (0.066 R)
• M14: 6,759,580 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.9

Radius: 13.4

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1 AU - 1.02 AU

Year: 701 Days

Day: 12.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,667,812 km

• M1: 168,896 km (0.053 R)
• M2: 681,717 km (0.063 R)
• M3: 1,328,878 km (0.108 R)
• M4: 1,751,492 km (0.056 R)
• M5: 2,359,458 km (0.069 R)
• M6: 2,868,838 km (0.096 R)
• M7: 4,270,720 km (0.081 R)
• M8: 4,752,724 km (0.09 R)
• M9: 5,827,136 km (0.112 R)
• M10: 6,295,826 km (0.078 R)
• M11: 7,057,579 km (0.049 R)
• M12: 9,164,366 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 14.2

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.15 AU - 3.51 AU

Year: 3286 Days

Day: 7.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,667,812 km

• M1: 176,675 km (0.046 R)
• M2: 706,700 km (0.117 R)
• M3: 1,664,276 km (0.095 R)
• M4: 2,114,117 km (0.116 R)
• M5: 2,615,420 km (0.044 R)
• M6: 3,663,801 km (0.096 R)
• M7: 5,247,893 km (0.102 R)
• M8: 8,065,270 km (0.099 R)
• M9: 8,760,003 km (0.08 R)
• M10: 10,795,431 km (0.113 R)
• M11: 12,078,532 km (0.1 R)
• M12: 12,711,181 km (0.095 R)
• M13: 13,461,265 km (0.086 R)
• M14: 15,623,852 km (0.105 R)
• M15: 16,539,690 km (0.083 R)
• M16: 20,185,540 km (0.107 R)
• M17: 21,337,294 km (0.077 R)
• M18: 22,397,344 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.6

Radius: 14.6

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.91 AU - 3.91 AU

Year: 4347 Days

Day: 10.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,667,812 km

• M1: 181,612 km (0.083 R)
• M2: 894,745 km (0.059 R)
• M3: 1,789,789 km (0.102 R)
• M4: 2,274,785 km (0.052 R)
• M5: 4,548,673 km (0.054 R)
• M6: 5,395,696 km (0.048 R)
• M7: 6,700,339 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.3

Radius: 7.5

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 6.57 AU - 7.43 AU

Year: 12784 Days

Day: 18.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,667,812 km

• M1: 94,097 km (0.109 R)
• M2: 485,744 km (0.075 R)
• M3: 3,292,350 km (0.068 R)
• M4: 4,695,728 km (0.112 R)
• M5: 5,673,200 km (0.045 R)
• M6: 6,240,774 km (0.109 R)
• M7: 7,593,887 km (0.079 R)
• M8: 8,171,484 km (0.108 R)
• M9: 12,172,480 km (0.12 R)
• M10: 21,401,023 km (0.066 R)
• M11: 24,199,400 km (0.084 R)
• M12: 25,210,233 km (0.082 R)
• M13: 27,649,726 km (0.081 R)
• M14: 27,901,948 km (0.09 R)
• M15: 28,496,599 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.2

Radius: 5.9

Gravity: 28.42 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.62 AU - 7.8 AU

Year: 13363 Days

Day: 16.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,667,812 km

• M1: 79,287 km (0.113 R)
• M2: 753,674 km (0.106 R)
• M3: 1,062,743 km (0.064 R)
• M4: 1,281,455 km (0.116 R)
• M5: 1,828,535 km (0.118 R)
• M6: 2,586,248 km (0.074 R)
• M7: 6,258,128 km (0.083 R)
• M8: 6,548,048 km (0.104 R)
• M9: 6,890,179 km (0.047 R)
• M10: 9,252,329 km (0.106 R)
• M11: 13,218,318 km (0.096 R)
• M12: 13,764,949 km (0.076 R)
• M13: 14,114,260 km (0.073 R)
• M14: 16,412,981 km (0.069 R)
• M15: 21,269,676 km (0.058 R)
• M16: 23,375,116 km (0.117 R)
• M17: 25,094,295 km (0.1 R)
• M18: 26,464,462 km (0.099 R)
• M19: 29,583,727 km (0.106 R)
• M20: 47,778,867 km (0.025 R)
• M21: 50,042,433 km (0.062 R)
• M22: 64,362,389 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.4

Radius: 5.1

Gravity: 29.23 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.23 AU - 9.37 AU

Year: 19577 Days

Day: 16.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,667,812 km

• M1: 63,429 km (0.09 R)
• M2: 405,709 km (0.075 R)
• M3: 621,280 km (0.049 R)
• M4: 935,585 km (0.061 R)
• M5: 1,956,142 km (0.114 R)
• M6: 3,086,802 km (0.114 R)
• M7: 4,058,441 km (0.079 R)
• M8: 5,180,574 km (0.079 R)
• M9: 5,372,957 km (0.12 R)
• M10: 5,937,091 km (0.096 R)
• M11: 7,470,319 km (0.107 R)
• M12: 11,748,220 km (0.065 R)
• M13: 12,419,615 km (0.097 R)
• M14: 14,739,878 km (0.09 R)
• M15: 16,994,169 km (0.108 R)
• M16: 17,163,513 km (0.107 R)
• M17: 17,333,905 km (0.083 R)
• M18: 25,226,091 km (0.1 R)
• M19: 36,047,402 km (0.064 R)
• M20: 41,611,845 km (0.114 R)
• M21: 47,722,170 km (0.1 R)
• M22: 49,252,107 km (0.057 R)
• M23: 50,639,328 km (0.054 R)
• M24: 53,129,085 km (0.038 R)
• M25: 55,513,077 km (0.033 R)
• M26: 58,736,911 km (0.117 R)
• M27: 58,930,341 km (0.032 R)
• M28: 65,971,165 km (0.077 R)
• M29: 74,907,394 km (0.105 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 19,762 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit