🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 238 Days

Day: 47.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.7

Radius: 10.3

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.65 AU - 0.97 AU

Year: 464 Days

Day: 14.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,995,546 km

• M1: 128,056 km (0.044 R)
• M2: 473,926 km (0.074 R)
• M3: 884,572 km (0.077 R)
• M4: 1,304,793 km (0.058 R)
• M5: 1,898,846 km (0.115 R)
• M6: 2,529,550 km (0.108 R)
• M7: 2,894,569 km (0.104 R)
• M8: 3,282,626 km (0.074 R)
• M9: 3,665,297 km (0.117 R)
• M10: 4,310,363 km (0.108 R)
• M11: 5,112,358 km (0.112 R)
• M12: 5,487,699 km (0.104 R)
• M13: 5,844,938 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 8.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.12 AU - 1.68 AU

Year: 1053 Days

Day: 14.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,995,546 km

• M1: 110,702 km (0.089 R)
• M2: 396,734 km (0.077 R)
• M3: 969,245 km (0.111 R)
• M4: 1,292,825 km (0.076 R)
• M5: 1,626,428 km (0.093 R)
• M6: 2,017,626 km (0.113 R)
• M7: 2,348,986 km (0.081 R)
• M8: 3,270,957 km (0.043 R)
• M9: 4,416,428 km (0.091 R)
• M10: 6,937,601 km (0.047 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.5

Radius: 5.5

Gravity: 14.56 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 7.14 AU - 9.56 AU

Year: 15341 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,995,546 km

• M1: 68,366 km (0.104 R)
• M2: 463,604 km (0.109 R)
• M3: 781,798 km (0.117 R)
• M4: 1,034,469 km (0.097 R)
• M5: 1,262,157 km (0.046 R)
• M6: 1,567,337 km (0.074 R)
• M7: 2,445,327 km (0.088 R)
• M8: 3,279,036 km (0.075 R)
• M9: 3,639,267 km (0.071 R)
• M10: 4,469,087 km (0.059 R)
• M11: 6,735,046 km (0.054 R)
• M12: 8,868,461 km (0.074 R)
• M13: 11,414,617 km (0.113 R)
• M14: 12,361,272 km (0.095 R)
• M15: 12,605,865 km (0.064 R)
• M16: 14,817,519 km (0.115 R)
• M17: 16,748,379 km (0.115 R)
• M18: 22,704,768 km (0.12 R)
• M19: 23,071,732 km (0.09 R)
• M20: 24,101,713 km (0.101 R)
• M21: 24,966,688 km (0.114 R)
• M22: 25,653,791 km (0.057 R)
• M23: 26,052,020 km (0.099 R)
• M24: 34,907,466 km (0.082 R)
• M25: 35,519,322 km (0.05 R)
• M26: 36,638,763 km (0.092 R)
• M27: 42,869,065 km (0.106 R)
• M28: 43,570,679 km (0.071 R)
• M29: 51,170,251 km (0.116 R)
• M30: 52,437,195 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.5

Radius: 4.9

Gravity: 28.76 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 8.13 AU - 11.29 AU

Year: 19238 Days

Day: 23.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,995,546 km

• M1: 61,036 km (0.073 R)
• M2: 235,766 km (0.058 R)
• M3: 768,634 km (0.074 R)
• M4: 964,757 km (0.084 R)
• M5: 1,207,704 km (0.099 R)
• M6: 1,967,960 km (0.118 R)
• M7: 2,779,229 km (0.086 R)
• M8: 3,084,708 km (0.094 R)
• M9: 7,057,878 km (0.119 R)
• M10: 9,070,268 km (0.045 R)
• M11: 9,972,493 km (0.072 R)
• M12: 11,308,552 km (0.107 R)
• M13: 11,953,468 km (0.068 R)
• M14: 13,817,159 km (0.11 R)
• M15: 27,555,629 km (0.116 R)
• M16: 34,104,874 km (0.094 R)
• M17: 36,963,091 km (0.108 R)
• M18: 42,074,850 km (0.117 R)
• M19: 42,227,440 km (0.099 R)
• M20: 50,165,252 km (0.119 R)
• M21: 63,346,022 km (0.095 R)
• M22: 71,917,381 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.8

Radius: 7.8

Gravity: 13.95 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.46 AU - 11.28 AU

Year: 21233 Days

Day: 22.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,995,546 km

• M1: 97,388 km (0.116 R)
• M2: 592,408 km (0.046 R)
• M3: 941,270 km (0.1 R)
• M4: 2,555,132 km (0.094 R)
• M5: 3,013,200 km (0.033 R)
• M6: 3,708,232 km (0.085 R)
• M7: 4,365,266 km (0.089 R)
• M8: 4,795,360 km (0.092 R)
• M9: 7,383,104 km (0.107 R)
• M10: 9,550,926 km (0.079 R)
• M11: 15,176,405 km (0.119 R)
• M12: 19,190,564 km (0.106 R)
• M13: 19,665,538 km (0.111 R)
• M14: 28,615,829 km (0.094 R)
• M15: 32,874,132 km (0.102 R)
• M16: 42,460,962 km (0.102 R)
• M17: 46,595,249 km (0.099 R)
• M18: 48,496,488 km (0.036 R)
• M19: 58,385,506 km (0.108 R)
• M20: 64,962,726 km (0.12 R)
• M21: 67,115,290 km (0.117 R)
• M22: 67,770,079 km (0.052 R)
• M23: 68,429,208 km (0.081 R)
• M24: 84,795,065 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.9

Radius: 7.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.92 AU - 11.96 AU

Year: 23007 Days

Day: 19.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,995,546 km

• M1: 95,743 km (0.115 R)
• M2: 441,613 km (0.086 R)
• M3: 706,401 km (0.102 R)
• M4: 2,775,340 km (0.065 R)
• M5: 3,114,628 km (0.096 R)
• M6: 3,380,762 km (0.108 R)
• M7: 4,331,008 km (0.028 R)
• M8: 6,949,120 km (0.098 R)
• M9: 7,237,545 km (0.081 R)
• M10: 8,287,572 km (0.072 R)
• M11: 11,182,740 km (0.04 R)
• M12: 16,220,748 km (0.037 R)
• M13: 16,582,774 km (0.05 R)
• M14: 19,189,667 km (0.114 R)
• M15: 26,675,844 km (0.101 R)
• M16: 27,079,010 km (0.054 R)
• M17: 31,449,661 km (0.119 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 19,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit