🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.55 AU - 0.61 AU

Year: 290 Days

Day: 21.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,088,462 km

• M1: 328,068 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.1

Radius: 10.7

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.78 AU - 0.88 AU

Year: 496 Days

Day: 12.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 28,088,462 km

• M1: 133,142 km (0.055 R)
• M2: 489,634 km (0.083 R)
• M3: 1,147,715 km (0.113 R)
• M4: 1,719,179 km (0.1 R)
• M5: 2,220,631 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.1

Radius: 11.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.06 AU - 1.38 AU

Year: 884 Days

Day: 7.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,088,462 km

• M1: 146,756 km (0.102 R)
• M2: 523,892 km (0.086 R)
• M3: 983,307 km (0.108 R)
• M4: 1,503,459 km (0.08 R)
• M5: 2,073,576 km (0.117 R)
• M6: 2,724,476 km (0.026 R)
• M7: 3,231,164 km (0.092 R)
• M8: 3,637,173 km (0.093 R)
• M9: 4,172,883 km (0.099 R)
• M10: 5,029,331 km (0.07 R)
• M11: 5,836,262 km (0.072 R)
• M12: 6,228,807 km (0.075 R)
• M13: 7,979,102 km (0.045 R)
• M14: 8,726,642 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829

Radius: 14.4

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.1 AU - 1.52 AU

Year: 984 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 171.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,088,462 km

• M1: 179,368 km (0.083 R)
• M2: 757,264 km (0.092 R)
• M3: 1,549,535 km (0.043 R)
• M4: 2,561,415 km (0.117 R)
• M5: 3,201,095 km (0.045 R)
• M6: 4,158,073 km (0.045 R)
• M7: 4,713,380 km (0.072 R)
• M8: 6,940,743 km (0.08 R)
• M9: 7,853,739 km (0.103 R)
• M10: 9,070,568 km (0.108 R)
• M11: 10,503,416 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.8

Radius: 9.9

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.04 AU - 1.62 AU

Year: 1006 Days

Day: 13 Hours

Environment

Temp: -182 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,088,462 km

• M1: 123,568 km (0.043 R)
• M2: 639,680 km (0.047 R)
• M3: 1,071,121 km (0.117 R)
• M4: 1,582,297 km (0.092 R)
• M5: 1,899,444 km (0.065 R)
• M6: 2,240,976 km (0.035 R)
• M7: 3,038,482 km (0.034 R)
• M8: 3,522,132 km (0.109 R)
• M9: 3,863,664 km (0.068 R)
• M10: 4,477,165 km (0.055 R)
• M11: 5,023,347 km (0.114 R)
• M12: 5,423,222 km (0.105 R)
• M13: 6,516,633 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.6

Radius: 9.2

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.31 AU - 1.49 AU

Year: 1087 Days

Day: 13.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,088,462 km

• M1: 114,592 km (0.098 R)
• M2: 438,621 km (0.07 R)
• M3: 926,460 km (0.073 R)
• M4: 1,527,843 km (0.064 R)
• M5: 2,843,407 km (0.059 R)
• M6: 3,314,042 km (0.109 R)
• M7: 3,683,399 km (0.07 R)
• M8: 4,473,874 km (0.119 R)
• M9: 4,876,292 km (0.109 R)
• M10: 5,373,256 km (0.067 R)
• M11: 6,133,214 km (0.085 R)
• M12: 6,692,111 km (0.081 R)
• M13: 7,026,462 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 14.1

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.49 AU - 1.57 AU

Year: 1241 Days

Day: 8 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,088,462 km

• M1: 175,478 km (0.061 R)
• M2: 641,625 km (0.114 R)
• M3: 1,124,677 km (0.064 R)
• M4: 1,748,949 km (0.079 R)
• M5: 2,285,407 km (0.082 R)
• M6: 2,918,355 km (0.108 R)
• M7: 3,364,606 km (0.106 R)
• M8: 3,840,776 km (0.113 R)
• M9: 5,384,177 km (0.066 R)
• M10: 6,217,587 km (0.096 R)
• M11: 7,822,323 km (0.089 R)
• M12: 8,978,715 km (0.116 R)
• M13: 9,598,050 km (0.082 R)
• M14: 10,120,296 km (0.065 R)
• M15: 10,824,304 km (0.08 R)
• M16: 11,629,439 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.1

Radius: 9.3

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.41 AU - 2.13 AU

Year: 1545 Days

Day: 8.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,088,462 km

• M1: 115,639 km (0.096 R)
• M2: 726,896 km (0.089 R)
• M3: 1,068,578 km (0.083 R)
• M4: 1,728,005 km (0.104 R)
• M5: 2,428,871 km (0.087 R)
• M6: 2,873,326 km (0.098 R)
• M7: 3,199,150 km (0.113 R)
• M8: 3,500,441 km (0.077 R)
• M9: 3,873,089 km (0.052 R)
• M10: 4,404,760 km (0.056 R)
• M11: 4,984,302 km (0.092 R)
• M12: 5,681,877 km (0.1 R)
• M13: 6,030,739 km (0.101 R)
• M14: 7,324,910 km (0.092 R)
• M15: 8,795,457 km (0.043 R)
• M16: 9,551,674 km (0.116 R)
• M17: 10,978,389 km (0.098 R)
• M18: 11,557,632 km (0.092 R)
• M19: 12,310,110 km (0.099 R)
• M20: 12,698,466 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.2

Radius: 10.5

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2 AU - 2.28 AU

Year: 2054 Days

Day: 7.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,088,462 km

• M1: 130,749 km (0.041 R)
• M2: 1,134,550 km (0.085 R)
• M3: 2,299,469 km (0.111 R)
• M4: 2,987,619 km (0.097 R)
• M5: 3,414,571 km (0.09 R)
• M6: 3,977,059 km (0.079 R)
• M7: 5,840,151 km (0.11 R)
• M8: 6,195,297 km (0.103 R)
• M9: 7,406,890 km (0.073 R)
• M10: 8,967,944 km (0.115 R)
• M11: 9,932,401 km (0.034 R)
• M12: 10,366,384 km (0.096 R)
• M13: 11,079,368 km (0.113 R)
• M14: 14,445,021 km (0.1 R)
• M15: 16,660,864 km (0.084 R)
• M16: 17,482,157 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.6

Radius: 4.7

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.56 AU - 6.3 AU

Year: 9473 Days

Day: 19.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,088,462 km

• M1: 58,493 km (0.091 R)
• M2: 208,689 km (0.101 R)
• M3: 399,426 km (0.036 R)
• M4: 687,103 km (0.06 R)
• M5: 853,755 km (0.101 R)
• M6: 2,004,462 km (0.078 R)
• M7: 2,164,980 km (0.111 R)
• M8: 4,022,537 km (0.07 R)
• M9: 5,007,340 km (0.043 R)
• M10: 6,389,475 km (0.092 R)
• M11: 12,217,808 km (0.039 R)
• M12: 17,455,229 km (0.097 R)
• M13: 22,387,172 km (0.096 R)
• M14: 24,935,123 km (0.035 R)
• M15: 26,601,942 km (0.113 R)
• M16: 27,837,022 km (0.036 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 14,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit