🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.8

Radius: 11.1

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.48 AU - 0.7 AU

Year: 313 Days

Day: 10.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,353,184 km

• M1: 138,228 km (0.089 R)
• M2: 606,919 km (0.073 R)
• M3: 1,335,311 km (0.102 R)
• M4: 1,847,534 km (0.032 R)
• M5: 2,415,108 km (0.03 R)
• M6: 2,958,747 km (0.081 R)
• M7: 3,361,614 km (0.088 R)
• M8: 3,838,532 km (0.08 R)
• M9: 4,265,634 km (0.085 R)
• M10: 4,782,195 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.4

Radius: 8.8

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.52 AU - 0.68 AU

Year: 321 Days

Day: 9.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,353,184 km

• M1: 109,954 km (0.12 R)
• M2: 485,595 km (0.094 R)
• M3: 909,405 km (0.1 R)
• M4: 1,271,582 km (0.064 R)
• M5: 1,729,351 km (0.08 R)
• M6: 2,232,150 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.8

Radius: 13.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.64 AU - 0.82 AU

Year: 431 Days

Day: 5.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,353,184 km

• M1: 172,935 km (0.096 R)
• M2: 610,359 km (0.085 R)
• M3: 1,067,830 km (0.052 R)
• M4: 1,759,720 km (0.065 R)
• M5: 2,517,732 km (0.096 R)
• M6: 3,153,224 km (0.106 R)
• M7: 3,711,523 km (0.11 R)
• M8: 4,613,150 km (0.051 R)
• M9: 5,469,448 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.9

Radius: 9.8

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.25 AU - 3.41 AU

Year: 4194 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,353,184 km

• M1: 121,922 km (0.113 R)
• M2: 432,039 km (0.059 R)
• M3: 930,499 km (0.09 R)
• M4: 1,237,623 km (0.053 R)
• M5: 1,925,773 km (0.092 R)
• M6: 2,330,286 km (0.082 R)
• M7: 2,942,590 km (0.044 R)
• M8: 3,658,566 km (0.025 R)
• M9: 4,632,448 km (0.082 R)
• M10: 5,180,275 km (0.094 R)
• M11: 7,843,566 km (0.079 R)
• M12: 8,981,108 km (0.098 R)
• M13: 12,301,732 km (0.093 R)
• M14: 13,744,903 km (0.034 R)
• M15: 14,325,492 km (0.101 R)
• M16: 16,264,131 km (0.045 R)
• M17: 16,762,292 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.8

Radius: 9

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.89 AU - 4.17 AU

Year: 4578 Days

Day: 14.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,353,184 km

• M1: 111,899 km (0.09 R)
• M2: 514,467 km (0.029 R)
• M3: 877,990 km (0.112 R)
• M4: 1,652,009 km (0.102 R)
• M5: 2,033,185 km (0.116 R)
• M6: 2,406,132 km (0.063 R)
• M7: 4,181,560 km (0.079 R)
• M8: 8,346,514 km (0.101 R)
• M9: 8,698,817 km (0.117 R)
• M10: 9,142,973 km (0.049 R)
• M11: 9,433,343 km (0.068 R)
• M12: 11,787,863 km (0.053 R)
• M13: 12,738,109 km (0.111 R)
• M14: 13,470,391 km (0.072 R)
• M15: 27,730,508 km (0.119 R)
• M16: 29,048,167 km (0.048 R)
• M17: 30,407,263 km (0.118 R)
• M18: 31,430,363 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.9

Radius: 13.6

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.06 AU - 5.46 AU

Year: 7168 Days

Day: 13.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,353,184 km

• M1: 181,911 km (0.087 R)
• M2: 762,650 km (0.108 R)
• M3: 1,267,842 km (0.1 R)
• M4: 2,118,755 km (0.064 R)
• M5: 2,754,994 km (0.114 R)
• M6: 4,491,078 km (0.056 R)
• M7: 6,041,360 km (0.113 R)
• M8: 9,083,284 km (0.09 R)
• M9: 9,813,770 km (0.112 R)
• M10: 12,604,817 km (0.105 R)
• M11: 15,584,807 km (0.08 R)
• M12: 16,010,712 km (0.091 R)
• M13: 21,823,936 km (0.087 R)
• M14: 23,770,204 km (0.096 R)
• M15: 24,335,385 km (0.089 R)
• M16: 24,992,119 km (0.067 R)
• M17: 29,460,907 km (0.085 R)
• M18: 32,719,897 km (0.109 R)
• M19: 34,027,083 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 780.9

Radius: 5.6

Gravity: 24.9 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 7.89 AU - 8.07 AU

Year: 15560 Days

Day: 18.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 43,353,184 km

• M1: 69,713 km (0.094 R)
• M2: 296,353 km (0.1 R)
• M3: 567,724 km (0.068 R)
• M4: 794,664 km (0.113 R)
• M5: 975,079 km (0.083 R)
• M6: 1,575,864 km (0.111 R)
• M7: 1,938,190 km (0.118 R)
• M8: 2,418,250 km (0.052 R)
• M9: 4,240,651 km (0.069 R)
• M10: 4,732,828 km (0.063 R)
• M11: 5,522,555 km (0.116 R)
• M12: 6,438,393 km (0.117 R)
• M13: 9,789,086 km (0.065 R)
• M14: 10,529,147 km (0.12 R)
• M15: 13,242,852 km (0.104 R)
• M16: 13,655,144 km (0.082 R)
• M17: 14,361,396 km (0.091 R)
• M18: 14,943,630 km (0.097 R)
• M19: 16,077,582 km (0.067 R)
• M20: 17,512,824 km (0.096 R)
• M21: 18,600,850 km (0.069 R)
• M22: 20,001,086 km (0.077 R)
• M23: 24,724,489 km (0.061 R)
• M24: 29,438,467 km (0.077 R)
• M25: 30,258,563 km (0.046 R)
• M26: 34,459,570 km (0.095 R)
• M27: 41,464,939 km (0.04 R)
• M28: 42,643,322 km (0.059 R)
• M29: 48,223,472 km (0.101 R)
• M30: 50,518,752 km (0.06 R)
• M31: 51,019,905 km (0.116 R)
• M32: 52,714,400 km (0.1 R)
• M33: 54,796,802 km (0.092 R)
• M34: 55,149,105 km (0.061 R)
• M35: 63,481,258 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.5

Radius: 4.3

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.52 AU - 10.84 AU

Year: 19199 Days

Day: 20.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,353,184 km

• M1: 60,288 km (0.073 R)
• M2: 248,033 km (0.081 R)
• M3: 1,098,647 km (0.037 R)
• M4: 3,238,644 km (0.085 R)
• M5: 3,448,231 km (0.095 R)
• M6: 4,491,826 km (0.104 R)
• M7: 5,967,758 km (0.092 R)
• M8: 6,985,921 km (0.098 R)
• M9: 7,988,227 km (0.093 R)
• M10: 8,856,194 km (0.117 R)
• M11: 11,889,889 km (0.063 R)
• M12: 13,076,499 km (0.112 R)
• M13: 13,370,160 km (0.105 R)
• M14: 15,161,295 km (0.073 R)
• M15: 17,457,623 km (0.05 R)
• M16: 24,102,611 km (0.092 R)
• M17: 24,366,950 km (0.07 R)
• M18: 31,199,982 km (0.081 R)
• M19: 34,323,137 km (0.101 R)
• M20: 34,994,383 km (0.049 R)
• M21: 40,806,858 km (0.093 R)
• M22: 41,056,836 km (0.077 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 16,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit