🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.44 AU - 0.66 AU

Year: 145 Days

Day: 24 Hours

Environment

Temp: 244 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.53 AU - 0.71 AU

Year: 174 Days

Day: 13.2 Hours

Environment

Temp: 213 °C

Axial Tilt: 32 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,156,310 km

• M1: 117,135 km (0.093 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.16 AU - 1.66 AU

Year: 597 Days

Day: 24 Hours

Environment

Temp: -5 °C

Axial Tilt: 123.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253

Radius: 13.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 6.13 AU - 6.13 AU

Year: 5410 Days

Day: 12.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 100,156,310 km

• M1: 172,187 km (0.119 R)
• M2: 712,983 km (0.095 R)
• M3: 1,643,781 km (0.087 R)
• M4: 2,420,793 km (0.112 R)
• M5: 3,603,065 km (0.093 R)
• M6: 5,468,700 km (0.081 R)
• M7: 7,141,204 km (0.059 R)
• M8: 9,963,218 km (0.055 R)
• M9: 11,387,240 km (0.098 R)
• M10: 17,703,113 km (0.078 R)
• M11: 19,909,532 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.4

Radius: 10.5

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.84 AU - 8.48 AU

Year: 7557 Days

Day: 8.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 100,156,310 km

• M1: 136,583 km (0.119 R)
• M2: 804,687 km (0.072 R)
• M3: 2,748,711 km (0.105 R)
• M4: 6,436,149 km (0.033 R)
• M5: 7,783,278 km (0.06 R)
• M6: 10,225,613 km (0.104 R)
• M7: 13,187,800 km (0.102 R)
• M8: 13,681,772 km (0.06 R)
• M9: 15,077,221 km (0.067 R)
• M10: 23,503,770 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.7

Radius: 9.3

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 8.26 AU - 8.44 AU

Year: 8601 Days

Day: 10.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 100,156,310 km

• M1: 115,789 km (0.092 R)
• M2: 410,347 km (0.094 R)
• M3: 758,910 km (0.049 R)
• M4: 1,787,994 km (0.111 R)
• M5: 2,511,150 km (0.095 R)
• M6: 2,854,926 km (0.099 R)
• M7: 3,184,191 km (0.039 R)
• M8: 3,662,754 km (0.103 R)
• M9: 4,499,006 km (0.101 R)
• M10: 5,391,806 km (0.119 R)
• M11: 6,509,003 km (0.107 R)
• M12: 6,926,681 km (0.078 R)
• M13: 7,566,062 km (0.098 R)
• M14: 8,070,955 km (0.091 R)
• M15: 9,624,379 km (0.119 R)
• M16: 12,895,187 km (0.105 R)
• M17: 14,363,789 km (0.109 R)
• M18: 15,138,407 km (0.108 R)
• M19: 18,442,575 km (0.052 R)
• M20: 21,277,604 km (0.093 R)
• M21: 24,846,112 km (0.108 R)
• M22: 27,894,468 km (0.104 R)
• M23: 28,292,249 km (0.092 R)
• M24: 29,714,326 km (0.102 R)
• M25: 30,758,968 km (0.111 R)
• M26: 32,810,703 km (0.109 R)
• M27: 44,048,046 km (0.118 R)
• M28: 45,131,583 km (0.111 R)
• M29: 45,817,789 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.2

Radius: 13.9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 8.11 AU - 13.13 AU

Year: 12336 Days

Day: 7.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 100,156,310 km

• M1: 173,384 km (0.095 R)
• M2: 1,087,427 km (0.052 R)
• M3: 2,033,484 km (0.111 R)
• M4: 2,721,185 km (0.101 R)
• M5: 5,095,004 km (0.074 R)
• M6: 5,783,454 km (0.105 R)
• M7: 8,733,673 km (0.117 R)
• M8: 9,468,199 km (0.101 R)
• M9: 14,379,347 km (0.078 R)
• M10: 22,757,576 km (0.108 R)
• M11: 23,292,239 km (0.119 R)
• M12: 26,510,089 km (0.102 R)
• M13: 30,013,522 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.4

Radius: 5.3

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 12.02 AU - 15.64 AU

Year: 18333 Days

Day: 21.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 100,156,310 km

• M1: 65,973 km (0.105 R)
• M2: 510,278 km (0.12 R)
• M3: 1,132,157 km (0.095 R)
• M4: 2,257,133 km (0.119 R)
• M5: 2,912,371 km (0.078 R)
• M6: 3,386,896 km (0.082 R)
• M7: 4,290,317 km (0.114 R)
• M8: 4,957,524 km (0.114 R)
• M9: 5,231,737 km (0.062 R)
• M10: 5,429,655 km (0.061 R)
• M11: 5,870,819 km (0.09 R)
• M12: 8,753,420 km (0.081 R)
• M13: 9,236,023 km (0.105 R)
• M14: 11,821,224 km (0.063 R)
• M15: 13,594,407 km (0.101 R)
• M16: 15,653,772 km (0.051 R)
• M17: 17,344,078 km (0.12 R)
• M18: 17,784,943 km (0.045 R)
• M19: 20,518,395 km (0.052 R)
• M20: 26,550,929 km (0.082 R)
• M21: 30,012,624 km (0.035 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 771.8

Radius: 4.6

Gravity: 36.47 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 16.19 AU - 20.89 AU

Year: 28455 Days

Day: 20 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 100,156,310 km

• M1: 57,745 km (0.11 R)
• M2: 209,437 km (0.111 R)
• M3: 474,973 km (0.111 R)
• M4: 882,328 km (0.045 R)
• M5: 1,356,254 km (0.029 R)
• M6: 2,498,584 km (0.068 R)
• M7: 3,215,756 km (0.04 R)
• M8: 4,061,283 km (0.104 R)
• M9: 4,239,604 km (0.118 R)
• M10: 4,845,176 km (0.078 R)
• M11: 7,263,425 km (0.096 R)
• M12: 7,850,298 km (0.12 R)
• M13: 12,197,911 km (0.075 R)
• M14: 12,345,714 km (0.072 R)
• M15: 16,620,473 km (0.099 R)
• M16: 18,692,553 km (0.059 R)
• M17: 18,987,859 km (0.116 R)
• M18: 19,994,653 km (0.061 R)
• M19: 21,895,593 km (0.078 R)
• M20: 24,378,319 km (0.12 R)
• M21: 24,612,889 km (0.072 R)
• M22: 25,808,625 km (0.105 R)
• M23: 28,444,689 km (0.083 R)
• M24: 31,116,806 km (0.087 R)
• M25: 31,670,617 km (0.111 R)
• M26: 33,660,718 km (0.09 R)
• M27: 36,035,434 km (0.106 R)
• M28: 43,998,379 km (0.114 R)
• M29: 55,046,930 km (0.109 R)
• M30: 60,881,995 km (0.043 R)
• M31: 65,745,721 km (0.101 R)
• M32: 72,060,846 km (0.109 R)
• M33: 73,273,037 km (0.093 R)
• M34: 80,054,309 km (0.085 R)
• M35: 84,263,843 km (0.05 R)
• M36: 84,531,773 km (0.107 R)
• M37: 87,241,888 km (0.103 R)
• M38: 90,289,346 km (0.061 R)
• M39: 95,428,033 km (0.107 R)
• M40: 98,068,884 km (0.077 R)

Kuiper Belt

Range: 30.8 - 55.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 18,485 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit