🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.5

Radius: 11.6

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.98 AU - 1 AU

Year: 668 Days

Day: 8.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,258,214 km

• M1: 144,811 km (0.107 R)
• M2: 506,688 km (0.097 R)
• M3: 910,752 km (0.105 R)
• M4: 1,286,691 km (0.099 R)
• M5: 1,663,080 km (0.105 R)
• M6: 2,058,317 km (0.032 R)
• M7: 2,538,227 km (0.11 R)
• M8: 2,910,875 km (0.115 R)
• M9: 3,385,549 km (0.118 R)
• M10: 5,598,850 km (0.098 R)
• M11: 6,583,503 km (0.108 R)
• M12: 7,161,400 km (0.071 R)
• M13: 7,565,314 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.4

Radius: 10.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.03 AU - 1.41 AU

Year: 914 Days

Day: 9.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,258,214 km

• M1: 130,749 km (0.102 R)
• M2: 528,380 km (0.061 R)
• M3: 861,235 km (0.077 R)
• M4: 1,241,363 km (0.05 R)
• M5: 1,819,110 km (0.119 R)
• M6: 2,146,879 km (0.088 R)
• M7: 2,829,494 km (0.111 R)
• M8: 3,735,608 km (0.063 R)
• M9: 4,303,033 km (0.094 R)
• M10: 5,136,443 km (0.086 R)
• M11: 6,625,690 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.4

Radius: 10.8

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.28 AU - 1.86 AU

Year: 1334 Days

Day: 12.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,258,214 km

• M1: 134,488 km (0.067 R)
• M2: 564,732 km (0.11 R)
• M3: 982,260 km (0.112 R)
• M4: 1,498,671 km (0.048 R)
• M5: 1,844,991 km (0.099 R)
• M6: 3,016,641 km (0.087 R)
• M7: 3,516,747 km (0.115 R)
• M8: 4,005,184 km (0.069 R)
• M9: 4,574,553 km (0.11 R)
• M10: 6,496,587 km (0.085 R)
• M11: 7,739,745 km (0.105 R)
• M12: 8,268,274 km (0.11 R)
• M13: 8,708,391 km (0.088 R)
• M14: 9,665,668 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.6

Radius: 14.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.52 AU - 1.88 AU

Year: 1503 Days

Day: 8.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,258,214 km

• M1: 181,013 km (0.072 R)
• M2: 714,779 km (0.099 R)
• M3: 1,235,529 km (0.064 R)
• M4: 1,742,965 km (0.106 R)
• M5: 2,232,748 km (0.083 R)
• M6: 2,677,503 km (0.094 R)
• M7: 4,068,464 km (0.032 R)
• M8: 4,966,500 km (0.072 R)
• M9: 6,917,555 km (0.085 R)
• M10: 7,849,251 km (0.112 R)
• M11: 8,708,690 km (0.077 R)
• M12: 9,209,245 km (0.063 R)
• M13: 10,029,939 km (0.111 R)
• M14: 10,650,620 km (0.064 R)
• M15: 11,187,378 km (0.057 R)
• M16: 12,628,454 km (0.09 R)
• M17: 13,641,979 km (0.044 R)
• M18: 14,361,695 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764

Radius: 9.2

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.67 AU - 2.71 AU

Year: 2198 Days

Day: 8.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,258,214 km

• M1: 114,742 km (0.101 R)
• M2: 472,430 km (0.046 R)
• M3: 784,790 km (0.081 R)
• M4: 1,231,639 km (0.113 R)
• M5: 1,615,807 km (0.081 R)
• M6: 2,192,357 km (0.09 R)
• M7: 2,808,102 km (0.115 R)
• M8: 3,342,016 km (0.108 R)
• M9: 4,238,257 km (0.061 R)
• M10: 5,216,478 km (0.088 R)
• M11: 6,024,605 km (0.067 R)
• M12: 6,499,279 km (0.117 R)
• M13: 7,287,211 km (0.111 R)
• M14: 8,651,993 km (0.084 R)
• M15: 9,360,339 km (0.103 R)
• M16: 9,675,541 km (0.044 R)
• M17: 11,319,772 km (0.119 R)
• M18: 13,273,520 km (0.097 R)
• M19: 14,078,057 km (0.114 R)
• M20: 15,200,939 km (0.116 R)
• M21: 16,483,441 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.5

Radius: 8.8

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.18 AU - 3.28 AU

Year: 3059 Days

Day: 11.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,258,214 km

• M1: 109,805 km (0.056 R)
• M2: 503,696 km (0.077 R)
• M3: 802,593 km (0.098 R)
• M4: 1,096,403 km (0.119 R)
• M5: 1,520,812 km (0.083 R)
• M6: 3,020,531 km (0.117 R)
• M7: 3,917,819 km (0.055 R)
• M8: 4,266,830 km (0.06 R)
• M9: 4,851,010 km (0.055 R)
• M10: 6,076,217 km (0.089 R)
• M11: 8,035,949 km (0.059 R)
• M12: 9,987,603 km (0.091 R)
• M13: 10,274,531 km (0.051 R)
• M14: 11,400,255 km (0.084 R)
• M15: 11,992,962 km (0.063 R)
• M16: 12,276,600 km (0.086 R)
• M17: 14,663,134 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.1

Radius: 6.1

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.96 AU - 8.48 AU

Year: 13158 Days

Day: 23.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 146.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,258,214 km

• M1: 76,893 km (0.102 R)
• M2: 423,512 km (0.042 R)
• M3: 637,437 km (0.098 R)
• M4: 1,126,023 km (0.046 R)
• M5: 1,675,945 km (0.037 R)
• M6: 2,427,225 km (0.044 R)
• M7: 3,359,968 km (0.052 R)
• M8: 4,770,078 km (0.037 R)
• M9: 4,978,019 km (0.116 R)
• M10: 5,192,093 km (0.078 R)
• M11: 6,249,750 km (0.05 R)
• M12: 7,055,784 km (0.099 R)
• M13: 7,846,708 km (0.105 R)
• M14: 9,096,448 km (0.11 R)
• M15: 9,509,937 km (0.06 R)
• M16: 17,518,060 km (0.043 R)
• M17: 21,673,291 km (0.097 R)
• M18: 26,906,224 km (0.041 R)
• M19: 38,693,788 km (0.098 R)
• M20: 40,757,790 km (0.039 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: 426 - 17,891 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit