🌌 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: 2.95

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.43 AU - 0.63 AU

Year: 249 Days

Day: 26.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.5

Radius: 12.5

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.65 AU - 0.91 AU

Year: 445 Days

Day: 13.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 122.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,421,448 km

• M1: 156,479 km (0.084 R)
• M2: 648,208 km (0.117 R)
• M3: 1,248,095 km (0.095 R)
• M4: 1,862,194 km (0.084 R)
• M5: 2,498,733 km (0.071 R)
• M6: 3,312,994 km (0.05 R)
• M7: 4,153,435 km (0.093 R)
• M8: 4,905,015 km (0.045 R)
• M9: 5,852,418 km (0.096 R)
• M10: 6,484,918 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.3

Radius: 9.9

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.15 AU - 1.15 AU

Year: 796 Days

Day: 12.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,421,448 km

• M1: 123,119 km (0.092 R)
• M2: 433,235 km (0.105 R)
• M3: 1,088,325 km (0.026 R)
• M4: 1,479,972 km (0.116 R)
• M5: 1,893,311 km (0.076 R)
• M6: 2,411,069 km (0.115 R)
• M7: 3,327,655 km (0.115 R)
• M8: 3,872,341 km (0.117 R)
• M9: 4,180,213 km (0.075 R)
• M10: 4,547,925 km (0.118 R)
• M11: 5,092,910 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.8

Radius: 12

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.36 AU - 1.66 AU

Year: 1198 Days

Day: 11.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,421,448 km

• M1: 149,299 km (0.103 R)
• M2: 529,726 km (0.112 R)
• M3: 1,429,707 km (0.105 R)
• M4: 1,831,826 km (0.054 R)
• M5: 2,451,311 km (0.101 R)
• M6: 3,727,530 km (0.065 R)
• M7: 4,354,046 km (0.056 R)
• M8: 5,540,656 km (0.065 R)
• M9: 5,980,773 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.6

Radius: 9.1

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.28 AU - 4.46 AU

Year: 5898 Days

Day: 7.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,421,448 km

• M1: 113,246 km (0.082 R)
• M2: 615,595 km (0.063 R)
• M3: 938,577 km (0.091 R)
• M4: 1,509,293 km (0.09 R)
• M5: 2,279,722 km (0.067 R)
• M6: 3,019,035 km (0.096 R)
• M7: 3,603,065 km (0.112 R)
• M8: 3,958,808 km (0.056 R)
• M9: 4,364,219 km (0.038 R)
• M10: 5,348,273 km (0.073 R)
• M11: 6,681,191 km (0.085 R)
• M12: 7,944,545 km (0.107 R)
• M13: 9,448,302 km (0.05 R)
• M14: 13,453,935 km (0.092 R)
• M15: 17,179,221 km (0.093 R)
• M16: 19,891,131 km (0.079 R)
• M17: 20,704,944 km (0.114 R)
• M18: 22,796,172 km (0.058 R)
• M19: 30,101,485 km (0.044 R)
• M20: 31,470,306 km (0.068 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500.1

Radius: 3.6

Gravity: 38.59 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.4 AU - 10.06 AU

Year: 19597 Days

Day: 16.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 58,421,448 km

• M1: 45,029 km (0.079 R)
• M2: 306,227 km (0.054 R)
• M3: 569,070 km (0.058 R)
• M4: 773,870 km (0.103 R)
• M5: 955,332 km (0.108 R)
• M6: 1,164,769 km (0.107 R)
• M7: 1,832,275 km (0.1 R)
• M8: 4,632,148 km (0.108 R)
• M9: 5,490,391 km (0.108 R)
• M10: 5,877,252 km (0.103 R)
• M11: 6,158,795 km (0.089 R)
• M12: 8,237,008 km (0.095 R)
• M13: 8,692,085 km (0.102 R)
• M14: 9,217,174 km (0.107 R)
• M15: 11,405,491 km (0.053 R)
• M16: 11,717,104 km (0.079 R)
• M17: 13,846,629 km (0.093 R)
• M18: 14,058,609 km (0.114 R)
• M19: 17,668,257 km (0.081 R)
• M20: 18,001,411 km (0.109 R)
• M21: 18,253,932 km (0.03 R)
• M22: 18,423,576 km (0.104 R)
• M23: 20,178,359 km (0.116 R)
• M24: 25,784,539 km (0.053 R)
• M25: 27,415,455 km (0.073 R)
• M26: 27,638,057 km (0.107 R)
• M27: 28,426,288 km (0.096 R)
• M28: 36,073,881 km (0.111 R)
• M29: 39,226,955 km (0.076 R)
• M30: 39,793,482 km (0.112 R)
• M31: 46,231,576 km (0.085 R)
• M32: 46,705,054 km (0.052 R)
• M33: 48,144,784 km (0.069 R)
• M34: 48,631,126 km (0.046 R)
• M35: 50,276,254 km (0.115 R)
• M36: 55,788,936 km (0.099 R)
• M37: 56,146,325 km (0.119 R)
• M38: 57,590,842 km (0.047 R)
• M39: 58,138,968 km (0.084 R)
• M40: 59,803,993 km (0.061 R)
• M41: 61,500,433 km (0.077 R)
• M42: 67,589,365 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 251.2

Radius: 4.9

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 8.37 AU - 12.79 AU

Year: 22220 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,421,448 km

• M1: 100,679 km (0.104 R)
• M2: 563,685 km (0.092 R)
• M3: 961,914 km (0.114 R)
• M4: 1,440,627 km (0.078 R)
• M5: 2,520,425 km (0.107 R)
• M6: 4,897,984 km (0.083 R)
• M7: 6,158,795 km (0.067 R)
• M8: 6,926,980 km (0.072 R)
• M9: 7,939,907 km (0.103 R)
• M10: 10,642,991 km (0.055 R)
• M11: 22,025,893 km (0.099 R)
• M12: 24,978,356 km (0.096 R)
• M13: 25,377,633 km (0.098 R)
• M14: 25,578,842 km (0.114 R)
• M15: 31,654,012 km (0.057 R)
• M16: 32,356,972 km (0.074 R)
• M17: 33,310,210 km (0.085 R)
• M18: 35,649,173 km (0.052 R)
• M19: 36,794,344 km (0.087 R)
• M20: 38,624,225 km (0.103 R)
• M21: 40,513,796 km (0.089 R)
• M22: 46,100,977 km (0.081 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 15,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit