🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.42 AU - 0.64 AU

Year: 253 Days

Day: 27.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.7

Radius: 11.7

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.79 AU - 1.01 AU

Year: 560 Days

Day: 11.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,991,277 km

• M1: 146,008 km (0.097 R)
• M2: 521,648 km (0.079 R)
• M3: 1,015,770 km (0.091 R)
• M4: 1,608,476 km (0.119 R)
• M5: 2,333,428 km (0.072 R)
• M6: 2,884,247 km (0.046 R)
• M7: 3,748,175 km (0.101 R)
• M8: 4,323,678 km (0.064 R)
• M9: 4,744,796 km (0.067 R)
• M10: 5,244,901 km (0.037 R)
• M11: 5,985,261 km (0.066 R)
• M12: 6,371,074 km (0.095 R)
• M13: 6,897,359 km (0.052 R)
• M14: 7,278,684 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.1

Radius: 11.6

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.88 AU - 1.13 AU

Year: 656 Days

Day: 7.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,991,277 km

• M1: 144,661 km (0.032 R)
• M2: 526,285 km (0.084 R)
• M3: 1,000,211 km (0.085 R)
• M4: 1,524,552 km (0.089 R)
• M5: 1,984,117 km (0.076 R)
• M6: 2,419,746 km (0.067 R)
• M7: 3,225,928 km (0.088 R)
• M8: 3,804,872 km (0.109 R)
• M9: 4,187,843 km (0.068 R)
• M10: 4,997,616 km (0.091 R)
• M11: 5,851,222 km (0.111 R)
• M12: 6,486,264 km (0.047 R)
• M13: 7,035,588 km (0.112 R)
• M14: 7,800,631 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.3

Radius: 14.9

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.08 AU - 2.22 AU

Year: 2068 Days

Day: 12.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,991,277 km

• M1: 185,352 km (0.03 R)
• M2: 731,085 km (0.094 R)
• M3: 1,243,308 km (0.044 R)
• M4: 1,793,379 km (0.052 R)
• M5: 2,321,759 km (0.079 R)
• M6: 2,864,051 km (0.119 R)
• M7: 3,456,908 km (0.056 R)
• M8: 4,111,847 km (0.104 R)
• M9: 4,762,747 km (0.077 R)
• M10: 5,249,688 km (0.067 R)
• M11: 5,769,840 km (0.105 R)
• M12: 6,942,538 km (0.077 R)
• M13: 7,424,991 km (0.104 R)
• M14: 8,394,535 km (0.082 R)
• M15: 9,653,700 km (0.083 R)
• M16: 11,035,536 km (0.073 R)
• M17: 14,144,628 km (0.043 R)
• M18: 14,830,385 km (0.095 R)
• M19: 15,876,074 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.2

Radius: 14.9

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.22 AU - 2.26 AU

Year: 2199 Days

Day: 13.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,991,277 km

• M1: 185,801 km (0.063 R)
• M2: 836,551 km (0.098 R)
• M3: 1,371,663 km (0.077 R)
• M4: 1,865,785 km (0.111 R)
• M5: 3,783,031 km (0.064 R)
• M6: 4,343,574 km (0.084 R)
• M7: 5,268,239 km (0.09 R)
• M8: 6,297,023 km (0.093 R)
• M9: 7,037,533 km (0.117 R)
• M10: 7,509,364 km (0.064 R)
• M11: 8,285,478 km (0.083 R)
• M12: 8,872,351 km (0.103 R)
• M13: 9,392,802 km (0.113 R)
• M14: 10,162,333 km (0.119 R)
• M15: 10,869,931 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.2

Radius: 14.5

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.24 AU - 3.32 AU

Year: 3041 Days

Day: 5.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,991,277 km

• M1: 180,265 km (0.066 R)
• M2: 647,460 km (0.112 R)
• M3: 1,296,266 km (0.065 R)
• M4: 2,276,281 km (0.086 R)
• M5: 3,225,629 km (0.094 R)
• M6: 3,937,117 km (0.089 R)
• M7: 4,425,703 km (0.099 R)
• M8: 5,403,625 km (0.073 R)
• M9: 6,035,825 km (0.038 R)
• M10: 7,510,112 km (0.109 R)
• M11: 8,040,886 km (0.097 R)
• M12: 8,530,071 km (0.073 R)
• M13: 9,213,134 km (0.11 R)
• M14: 10,728,112 km (0.056 R)
• M15: 11,281,774 km (0.038 R)
• M16: 13,013,818 km (0.1 R)
• M17: 14,484,515 km (0.034 R)
• M18: 16,579,483 km (0.102 R)
• M19: 18,250,641 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.6

Radius: 9

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.01 AU - 4.05 AU

Year: 5307 Days

Day: 6.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,991,277 km

• M1: 111,899 km (0.067 R)
• M2: 749,635 km (0.062 R)
• M3: 1,096,852 km (0.045 R)
• M4: 1,489,845 km (0.034 R)
• M5: 1,774,979 km (0.085 R)
• M6: 2,272,541 km (0.094 R)
• M7: 2,563,659 km (0.12 R)
• M8: 2,957,999 km (0.088 R)
• M9: 3,636,724 km (0.04 R)
• M10: 4,013,262 km (0.111 R)
• M11: 5,601,543 km (0.079 R)
• M12: 6,170,164 km (0.104 R)
• M13: 7,311,895 km (0.1 R)
• M14: 7,913,727 km (0.053 R)
• M15: 8,226,836 km (0.053 R)
• M16: 8,548,172 km (0.051 R)
• M17: 9,519,062 km (0.065 R)
• M18: 10,008,546 km (0.047 R)
• M19: 10,468,111 km (0.11 R)
• M20: 10,989,759 km (0.103 R)
• M21: 11,728,922 km (0.057 R)
• M22: 12,553,505 km (0.103 R)
• M23: 17,265,539 km (0.097 R)
• M24: 18,950,609 km (0.078 R)
• M25: 20,816,394 km (0.083 R)
• M26: 21,414,337 km (0.052 R)
• M27: 26,096,900 km (0.114 R)
• M28: 26,443,069 km (0.042 R)
• M29: 28,310,499 km (0.113 R)
• M30: 30,454,835 km (0.089 R)
• M31: 32,405,442 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.1

Radius: 8.6

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.61 AU - 4.65 AU

Year: 6536 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 36,991,277 km

• M1: 106,962 km (0.062 R)
• M2: 376,239 km (0.081 R)
• M3: 801,097 km (0.112 R)
• M4: 1,248,843 km (0.045 R)
• M5: 1,661,434 km (0.12 R)
• M6: 2,005,659 km (0.119 R)
• M7: 2,557,226 km (0.094 R)
• M8: 2,859,264 km (0.059 R)
• M9: 3,248,967 km (0.044 R)
• M10: 5,383,429 km (0.051 R)
• M11: 6,012,189 km (0.103 R)
• M12: 6,310,786 km (0.084 R)
• M13: 7,229,317 km (0.048 R)
• M14: 9,506,496 km (0.096 R)
• M15: 11,858,773 km (0.116 R)
• M16: 12,758,305 km (0.09 R)
• M17: 14,046,791 km (0.068 R)
• M18: 14,396,701 km (0.08 R)
• M19: 14,692,755 km (0.078 R)
• M20: 15,481,584 km (0.097 R)
• M21: 16,298,239 km (0.061 R)
• M22: 22,203,466 km (0.104 R)
• M23: 23,896,315 km (0.114 R)
• M24: 27,355,766 km (0.116 R)
• M25: 29,488,882 km (0.075 R)
• M26: 34,504,300 km (0.106 R)
• M27: 35,356,260 km (0.102 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 13,853 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit