🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.6

Radius: 12.1

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.49 AU - 0.71 AU

Year: 315 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,929,442 km

• M1: 150,495 km (0.098 R)
• M2: 536,907 km (0.086 R)
• M3: 1,043,296 km (0.078 R)
• M4: 1,452,446 km (0.093 R)
• M5: 2,039,767 km (0.119 R)
• M6: 2,426,029 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.3

Radius: 10

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.58 AU - 0.92 AU

Year: 441 Days

Day: 8.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,929,442 km

• M1: 124,316 km (0.11 R)
• M2: 782,098 km (0.114 R)
• M3: 1,526,347 km (0.051 R)
• M4: 1,919,341 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.4

Radius: 10.5

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.94 AU - 1.18 AU

Year: 740 Days

Day: 14.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,929,442 km

• M1: 135,685 km (0.089 R)
• M2: 489,335 km (0.049 R)
• M3: 919,429 km (0.076 R)
• M4: 1,263,354 km (0.029 R)
• M5: 1,650,813 km (0.094 R)
• M6: 2,265,061 km (0.099 R)
• M7: 2,633,671 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227

Radius: 11.9

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.48 AU - 1.54 AU

Year: 1259 Days

Day: 11.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,929,442 km

• M1: 147,952 km (0.095 R)
• M2: 611,257 km (0.097 R)
• M3: 1,305,092 km (0.091 R)
• M4: 1,811,331 km (0.102 R)
• M5: 2,777,883 km (0.117 R)
• M6: 3,782,433 km (0.114 R)
• M7: 4,692,436 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.5

Radius: 9.6

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2 AU - 2.4 AU

Year: 2213 Days

Day: 7.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,929,442 km

• M1: 120,127 km (0.055 R)
• M2: 464,801 km (0.1 R)
• M3: 845,078 km (0.05 R)
• M4: 1,523,954 km (0.101 R)
• M5: 1,874,611 km (0.111 R)
• M6: 2,185,924 km (0.099 R)
• M7: 2,561,265 km (0.055 R)
• M8: 2,979,391 km (0.075 R)
• M9: 3,778,094 km (0.101 R)
• M10: 4,713,081 km (0.055 R)
• M11: 5,103,980 km (0.09 R)
• M12: 5,566,387 km (0.109 R)
• M13: 5,977,333 km (0.103 R)
• M14: 7,546,764 km (0.046 R)
• M15: 8,147,848 km (0.083 R)
• M16: 8,476,814 km (0.052 R)
• M17: 9,091,511 km (0.09 R)
• M18: 9,808,833 km (0.035 R)
• M19: 11,034,638 km (0.108 R)
• M20: 15,422,643 km (0.088 R)
• M21: 16,131,886 km (0.101 R)
• M22: 17,344,228 km (0.055 R)
• M23: 18,729,803 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.6

Radius: 8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 7.01 AU - 8.73 AU

Year: 14975 Days

Day: 18.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,929,442 km

• M1: 112,797 km (0.037 R)
• M2: 481,107 km (0.113 R)
• M3: 764,595 km (0.074 R)
• M4: 1,240,765 km (0.087 R)
• M5: 2,375,913 km (0.099 R)
• M6: 6,465,620 km (0.07 R)
• M7: 7,604,359 km (0.062 R)
• M8: 8,184,200 km (0.115 R)
• M9: 14,306,643 km (0.111 R)
• M10: 26,599,399 km (0.111 R)
• M11: 27,177,146 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.2

Radius: 4

Gravity: 25.89 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 8.34 AU - 9.3 AU

Year: 17766 Days

Day: 17.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,929,442 km

• M1: 49,816 km (0.114 R)
• M2: 262,544 km (0.08 R)
• M3: 539,450 km (0.1 R)
• M4: 934,089 km (0.047 R)
• M5: 1,978,282 km (0.06 R)
• M6: 2,107,984 km (0.074 R)
• M7: 2,243,370 km (0.12 R)
• M8: 2,596,869 km (0.068 R)
• M9: 5,041,598 km (0.112 R)
• M10: 5,284,844 km (0.11 R)
• M11: 5,870,071 km (0.035 R)
• M12: 6,619,706 km (0.073 R)
• M13: 7,930,183 km (0.099 R)
• M14: 9,772,780 km (0.113 R)
• M15: 11,109,587 km (0.118 R)
• M16: 12,690,238 km (0.102 R)
• M17: 13,336,052 km (0.1 R)
• M18: 13,534,119 km (0.055 R)
• M19: 13,667,112 km (0.095 R)
• M20: 14,763,365 km (0.11 R)
• M21: 15,332,884 km (0.094 R)
• M22: 17,206,897 km (0.117 R)
• M23: 19,992,858 km (0.111 R)
• M24: 21,492,427 km (0.118 R)
• M25: 21,764,545 km (0.116 R)
• M26: 24,220,643 km (0.11 R)
• M27: 24,416,916 km (0.07 R)
• M28: 31,387,877 km (0.103 R)
• M29: 34,140,927 km (0.088 R)
• M30: 36,920,904 km (0.111 R)
• M31: 39,984,519 km (0.046 R)
• M32: 42,639,881 km (0.061 R)
• M33: 43,502,163 km (0.086 R)
• M34: 43,792,084 km (0.111 R)
• M35: 46,460,461 km (0.105 R)
• M36: 53,601,067 km (0.065 R)
• M37: 54,605,168 km (0.101 R)
• M38: 56,996,639 km (0.075 R)
• M39: 58,394,033 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524

Radius: 4.1

Gravity: 31.17 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.63 AU - 10.73 AU

Year: 18865 Days

Day: 21.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 66,929,442 km

• M1: 51,013 km (0.095 R)
• M2: 254,915 km (0.064 R)
• M3: 391,348 km (0.113 R)
• M4: 531,820 km (0.074 R)
• M5: 753,375 km (0.094 R)
• M6: 918,980 km (0.109 R)
• M7: 1,134,101 km (0.092 R)
• M8: 1,550,732 km (0.068 R)
• M9: 2,346,742 km (0.103 R)
• M10: 2,520,575 km (0.089 R)
• M11: 2,749,758 km (0.092 R)
• M12: 4,204,149 km (0.109 R)
• M13: 4,626,613 km (0.057 R)
• M14: 7,540,032 km (0.116 R)
• M15: 9,673,298 km (0.117 R)
• M16: 10,758,480 km (0.103 R)
• M17: 11,484,180 km (0.105 R)
• M18: 13,099,837 km (0.096 R)
• M19: 13,440,172 km (0.085 R)
• M20: 13,856,353 km (0.115 R)
• M21: 16,933,581 km (0.047 R)
• M22: 18,758,675 km (0.113 R)
• M23: 20,165,494 km (0.09 R)
• M24: 24,805,870 km (0.064 R)
• M25: 26,606,131 km (0.092 R)
• M26: 29,293,357 km (0.095 R)
• M27: 30,464,410 km (0.082 R)
• M28: 33,401,764 km (0.071 R)
• M29: 34,164,563 km (0.108 R)
• M30: 36,122,051 km (0.098 R)
• M31: 37,467,834 km (0.064 R)
• M32: 39,126,575 km (0.11 R)
• M33: 40,977,998 km (0.12 R)
• M34: 51,283,945 km (0.059 R)
• M35: 52,810,741 km (0.108 R)
• M36: 53,326,255 km (0.109 R)
• M37: 60,524,606 km (0.105 R)
• M38: 65,139,999 km (0.109 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 11,324 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit