🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.49 AU - 0.79 AU

Year: 336 Days

Day: 42.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.8

Radius: 12.9

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.54 AU - 0.9 AU

Year: 401 Days

Day: 14.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,226,359 km

• M1: 160,369 km (0.099 R)
• M2: 699,520 km (0.087 R)
• M3: 1,120,638 km (0.077 R)
• M4: 1,667,119 km (0.103 R)
• M5: 2,093,024 km (0.056 R)
• M6: 2,572,635 km (0.089 R)
• M7: 3,058,080 km (0.075 R)
• M8: 3,757,450 km (0.086 R)
• M9: 4,201,606 km (0.066 R)
• M10: 4,620,779 km (0.058 R)
• M11: 5,068,077 km (0.06 R)
• M12: 5,527,342 km (0.115 R)
• M13: 6,213,697 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.8

Radius: 8.9

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.67 AU - 0.81 AU

Year: 418 Days

Day: 14 Hours

Environment

Temp: -136 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,226,359 km

• M1: 110,702 km (0.111 R)
• M2: 536,458 km (0.102 R)
• M3: 830,119 km (0.109 R)
• M4: 1,165,667 km (0.118 R)
• M5: 1,890,468 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.6

Radius: 12.4

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.93 AU - 1.33 AU

Year: 788 Days

Day: 11.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,226,359 km

• M1: 154,385 km (0.074 R)
• M2: 623,823 km (0.029 R)
• M3: 1,767,050 km (0.117 R)
• M4: 2,212,702 km (0.05 R)
• M5: 3,489,969 km (0.11 R)
• M6: 4,083,124 km (0.058 R)
• M7: 6,062,454 km (0.075 R)
• M8: 7,414,818 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.9

Radius: 8.8

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.18 AU - 3.48 AU

Year: 3123 Days

Day: 14.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,226,359 km

• M1: 109,506 km (0.115 R)
• M2: 383,120 km (0.062 R)
• M3: 680,222 km (0.069 R)
• M4: 1,424,321 km (0.118 R)
• M5: 1,893,311 km (0.117 R)
• M6: 2,185,625 km (0.097 R)
• M7: 2,965,179 km (0.032 R)
• M8: 3,554,296 km (0.078 R)
• M9: 4,285,829 km (0.041 R)
• M10: 5,606,479 km (0.08 R)
• M11: 6,389,325 km (0.052 R)
• M12: 7,565,912 km (0.112 R)
• M13: 11,215,352 km (0.042 R)
• M14: 11,868,497 km (0.102 R)
• M15: 12,871,999 km (0.091 R)
• M16: 13,539,355 km (0.096 R)
• M17: 15,680,250 km (0.09 R)
• M18: 16,166,892 km (0.072 R)
• M19: 18,273,679 km (0.119 R)
• M20: 20,237,899 km (0.109 R)
• M21: 21,009,525 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.7

Radius: 9.8

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.88 AU - 3.08 AU

Year: 3375 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,226,359 km

• M1: 121,922 km (0.066 R)
• M2: 457,171 km (0.104 R)
• M3: 779,405 km (0.095 R)
• M4: 1,111,512 km (0.085 R)
• M5: 1,651,710 km (0.082 R)
• M6: 2,032,586 km (0.076 R)
• M7: 2,735,397 km (0.092 R)
• M8: 3,136,020 km (0.119 R)
• M9: 4,256,508 km (0.071 R)
• M10: 4,579,340 km (0.08 R)
• M11: 5,042,196 km (0.069 R)
• M12: 5,580,449 km (0.097 R)
• M13: 7,701,598 km (0.11 R)
• M14: 9,112,156 km (0.101 R)
• M15: 9,522,204 km (0.092 R)
• M16: 10,584,049 km (0.059 R)
• M17: 11,072,786 km (0.095 R)
• M18: 11,576,482 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664

Radius: 9

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.2 AU - 5.22 AU

Year: 5667 Days

Day: 5 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,226,359 km

• M1: 114,143 km (0.101 R)
• M2: 420,370 km (0.116 R)
• M3: 700,866 km (0.08 R)
• M4: 1,182,721 km (0.065 R)
• M5: 2,215,096 km (0.12 R)
• M6: 2,544,809 km (0.1 R)
• M7: 4,306,025 km (0.056 R)
• M8: 5,041,448 km (0.085 R)
• M9: 5,323,590 km (0.111 R)
• M10: 6,395,608 km (0.088 R)
• M11: 8,283,982 km (0.12 R)
• M12: 8,798,748 km (0.076 R)
• M13: 10,517,179 km (0.1 R)
• M14: 11,994,757 km (0.086 R)
• M15: 12,499,650 km (0.108 R)
• M16: 18,756,431 km (0.108 R)
• M17: 19,368,137 km (0.104 R)
• M18: 20,559,535 km (0.117 R)
• M19: 22,475,434 km (0.075 R)
• M20: 24,186,984 km (0.113 R)
• M21: 26,235,427 km (0.067 R)
• M22: 27,692,810 km (0.036 R)
• M23: 29,657,778 km (0.094 R)
• M24: 30,302,096 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.8

Radius: 3.7

Gravity: 60.39 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.58 AU - 7.28 AU

Year: 9473 Days

Day: 23.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 51.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 49,226,359 km

• M1: 80,633 km (0.118 R)
• M2: 275,110 km (0.104 R)
• M3: 394,041 km (0.115 R)
• M4: 569,669 km (0.119 R)
• M5: 823,686 km (0.051 R)
• M6: 1,308,533 km (0.118 R)
• M7: 1,797,418 km (0.105 R)
• M8: 2,065,498 km (0.11 R)
• M9: 2,477,042 km (0.064 R)
• M10: 2,985,824 km (0.078 R)
• M11: 3,586,609 km (0.076 R)
• M12: 3,874,884 km (0.112 R)
• M13: 4,094,195 km (0.12 R)
• M14: 4,527,580 km (0.094 R)
• M15: 4,927,305 km (0.104 R)
• M16: 7,162,596 km (0.117 R)
• M17: 7,451,021 km (0.089 R)
• M18: 8,916,332 km (0.091 R)
• M19: 9,741,365 km (0.08 R)
• M20: 10,775,535 km (0.049 R)
• M21: 10,936,801 km (0.095 R)
• M22: 15,441,791 km (0.114 R)
• M23: 17,573,860 km (0.064 R)
• M24: 17,722,710 km (0.088 R)
• M25: 18,787,548 km (0.093 R)
• M26: 19,335,674 km (0.11 R)
• M27: 19,894,422 km (0.119 R)
• M28: 20,218,451 km (0.071 R)
• M29: 23,655,014 km (0.086 R)
• M30: 32,097,570 km (0.071 R)
• M31: 33,446,942 km (0.113 R)
• M32: 33,675,378 km (0.094 R)
• M33: 35,898,552 km (0.085 R)
• M34: 40,246,016 km (0.078 R)
• M35: 40,634,222 km (0.112 R)
• M36: 41,024,972 km (0.105 R)
• M37: 46,051,311 km (0.051 R)
• M38: 47,189,601 km (0.1 R)
• M39: 47,621,191 km (0.117 R)
• M40: 48,200,733 km (0.11 R)
• M41: 48,492,299 km (0.074 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 17,337 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit