🌌 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: 389.6

Radius: 13.8

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.53 AU - 0.67 AU

Year: 310 Days

Day: 6 Hours

Environment

Temp: -143 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,116,521 km

• M1: 174,730 km (0.116 R)
• M2: 815,608 km (0.113 R)
• M3: 1,922,482 km (0.106 R)
• M4: 2,497,088 km (0.038 R)
• M5: 2,995,099 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.5

Radius: 13.5

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.55 AU - 0.89 AU

Year: 407 Days

Day: 10.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,116,521 km

• M1: 167,849 km (0.101 R)
• M2: 778,956 km (0.071 R)
• M3: 1,209,648 km (0.062 R)
• M4: 1,742,067 km (0.095 R)
• M5: 2,403,739 km (0.059 R)
• M6: 2,920,898 km (0.094 R)
• M7: 3,385,400 km (0.103 R)
• M8: 4,169,293 km (0.06 R)
• M9: 4,804,934 km (0.106 R)
• M10: 5,394,050 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.9

Radius: 8

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.23 AU - 2.03 AU

Year: 1388 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,116,521 km

• M1: 99,483 km (0.032 R)
• M2: 351,555 km (0.027 R)
• M3: 837,449 km (0.089 R)
• M4: 1,286,392 km (0.105 R)
• M5: 1,848,730 km (0.059 R)
• M6: 2,444,280 km (0.119 R)
• M7: 2,819,770 km (0.105 R)
• M8: 4,758,559 km (0.038 R)
• M9: 5,346,030 km (0.114 R)
• M10: 5,721,221 km (0.04 R)
• M11: 6,203,375 km (0.113 R)
• M12: 6,570,937 km (0.055 R)
• M13: 6,856,070 km (0.092 R)
• M14: 7,149,432 km (0.11 R)
• M15: 8,574,950 km (0.095 R)
• M16: 9,177,381 km (0.099 R)
• M17: 10,466,465 km (0.062 R)
• M18: 11,322,764 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.8

Radius: 8.8

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.55 AU - 3.25 AU

Year: 3293 Days

Day: 11.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,116,521 km

• M1: 111,450 km (0.113 R)
• M2: 430,393 km (0.114 R)
• M3: 780,901 km (0.082 R)
• M4: 1,261,110 km (0.116 R)
• M5: 1,668,914 km (0.116 R)
• M6: 2,037,074 km (0.096 R)
• M7: 2,362,150 km (0.09 R)
• M8: 2,891,428 km (0.034 R)
• M9: 3,680,407 km (0.094 R)
• M10: 4,288,522 km (0.085 R)
• M11: 5,579,851 km (0.114 R)
• M12: 7,743,036 km (0.079 R)
• M13: 8,119,424 km (0.084 R)
• M14: 8,540,842 km (0.118 R)
• M15: 9,148,508 km (0.065 R)
• M16: 11,066,502 km (0.103 R)
• M17: 13,149,802 km (0.09 R)
• M18: 13,640,932 km (0.11 R)
• M19: 14,051,878 km (0.088 R)
• M20: 15,778,835 km (0.063 R)
• M21: 16,231,818 km (0.055 R)
• M22: 17,111,004 km (0.114 R)
• M23: 18,240,468 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.2

Radius: 8.2

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.67 AU - 5.09 AU

Year: 7189 Days

Day: 5.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,116,521 km

• M1: 102,026 km (0.105 R)
• M2: 476,619 km (0.053 R)
• M3: 859,589 km (0.085 R)
• M4: 1,338,153 km (0.118 R)
• M5: 1,717,832 km (0.116 R)
• M6: 2,264,014 km (0.085 R)
• M7: 3,119,116 km (0.096 R)
• M8: 3,631,638 km (0.064 R)
• M9: 4,199,212 km (0.099 R)
• M10: 4,797,305 km (0.071 R)
• M11: 5,102,783 km (0.115 R)
• M12: 5,661,232 km (0.084 R)
• M13: 7,694,566 km (0.105 R)
• M14: 8,036,697 km (0.098 R)
• M15: 8,548,920 km (0.115 R)
• M16: 8,957,621 km (0.083 R)
• M17: 9,379,188 km (0.095 R)
• M18: 11,247,815 km (0.051 R)
• M19: 11,888,842 km (0.069 R)
• M20: 16,757,505 km (0.093 R)
• M21: 19,627,989 km (0.105 R)
• M22: 19,910,579 km (0.094 R)
• M23: 21,663,866 km (0.078 R)
• M24: 22,655,401 km (0.114 R)
• M25: 26,065,484 km (0.088 R)
• M26: 27,803,662 km (0.074 R)
• M27: 29,156,924 km (0.088 R)
• M28: 29,432,633 km (0.084 R)
• M29: 30,838,105 km (0.094 R)
• M30: 33,079,081 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.1

Radius: 5

Gravity: 10.56 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.59 AU - 7.09 AU

Year: 9411 Days

Day: 17.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,116,521 km

• M1: 69,413 km (0.054 R)
• M2: 229,334 km (0.095 R)
• M3: 408,701 km (0.084 R)
• M4: 603,777 km (0.089 R)
• M5: 938,278 km (0.092 R)
• M6: 1,353,562 km (0.098 R)
• M7: 1,882,689 km (0.11 R)
• M8: 3,359,819 km (0.055 R)
• M9: 3,900,914 km (0.117 R)
• M10: 4,192,331 km (0.087 R)
• M11: 5,240,713 km (0.066 R)
• M12: 8,624,766 km (0.086 R)
• M13: 10,952,808 km (0.088 R)
• M14: 11,483,581 km (0.052 R)
• M15: 11,830,050 km (0.093 R)
• M16: 14,800,166 km (0.09 R)
• M17: 17,572,364 km (0.12 R)
• M18: 19,461,337 km (0.069 R)
• M19: 29,280,791 km (0.079 R)
• M20: 31,057,715 km (0.063 R)
• M21: 31,826,947 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.3

Radius: 5.4

Gravity: 32.25 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 6.29 AU - 6.41 AU

Year: 10671 Days

Day: 17.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,116,521 km

• M1: 67,169 km (0.065 R)
• M2: 619,335 km (0.088 R)
• M3: 1,172,997 km (0.044 R)
• M4: 1,674,748 km (0.071 R)
• M5: 1,992,045 km (0.116 R)
• M6: 5,404,821 km (0.084 R)
• M7: 7,437,258 km (0.107 R)
• M8: 8,622,821 km (0.106 R)
• M9: 11,133,373 km (0.08 R)
• M10: 21,858,942 km (0.076 R)
• M11: 23,133,366 km (0.069 R)
• M12: 23,694,508 km (0.104 R)
• M13: 31,378,453 km (0.093 R)
• M14: 32,762,981 km (0.12 R)
• M15: 34,308,476 km (0.095 R)
• M16: 36,906,393 km (0.118 R)
• M17: 39,103,238 km (0.111 R)
• M18: 40,976,652 km (0.094 R)
• M19: 41,522,684 km (0.097 R)
• M20: 43,897,700 km (0.114 R)
• M21: 45,046,013 km (0.078 R)
• M22: 52,359,554 km (0.097 R)
• M23: 53,976,857 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 472.7

Radius: 7.3

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.89 AU - 10.45 AU

Year: 17024 Days

Day: 24.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 73,116,521 km

• M1: 103,223 km (0.1 R)
• M2: 361,728 km (0.055 R)
• M3: 707,000 km (0.119 R)
• M4: 1,784,852 km (0.085 R)
• M5: 2,378,157 km (0.089 R)
• M6: 2,654,016 km (0.106 R)
• M7: 3,778,842 km (0.083 R)
• M8: 4,008,176 km (0.087 R)
• M9: 5,404,522 km (0.035 R)
• M10: 6,885,242 km (0.066 R)
• M11: 8,327,216 km (0.116 R)
• M12: 8,766,585 km (0.077 R)
• M13: 10,851,530 km (0.117 R)
• M14: 13,777,665 km (0.064 R)
• M15: 15,750,262 km (0.1 R)
• M16: 17,348,117 km (0.102 R)
• M17: 22,504,008 km (0.098 R)
• M18: 24,229,769 km (0.062 R)
• M19: 25,428,197 km (0.09 R)
• M20: 26,352,563 km (0.115 R)
• M21: 32,374,625 km (0.066 R)
• M22: 33,460,107 km (0.097 R)
• M23: 38,445,007 km (0.1 R)
• M24: 38,982,662 km (0.086 R)
• M25: 39,935,600 km (0.105 R)
• M26: 41,464,341 km (0.086 R)
• M27: 41,888,002 km (0.116 R)
• M28: 44,638,209 km (0.107 R)
• M29: 48,750,206 km (0.115 R)
• M30: 49,856,034 km (0.03 R)
• M31: 50,335,046 km (0.085 R)
• M32: 50,656,083 km (0.106 R)
• M33: 51,464,659 km (0.04 R)
• M34: 53,273,747 km (0.086 R)
• M35: 56,844,648 km (0.042 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.8

Radius: 7.6

Gravity: 11.96 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.3 AU - 10.2 AU

Year: 18760 Days

Day: 15.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 81 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,116,521 km

• M1: 95,144 km (0.116 R)
• M2: 861,534 km (0.086 R)
• M3: 1,155,344 km (0.116 R)
• M4: 1,422,825 km (0.103 R)
• M5: 2,105,740 km (0.081 R)
• M6: 3,171,924 km (0.1 R)
• M7: 5,660,634 km (0.093 R)
• M8: 5,940,831 km (0.072 R)
• M9: 17,163,065 km (0.058 R)
• M10: 21,088,064 km (0.096 R)
• M11: 23,054,977 km (0.097 R)
• M12: 26,451,447 km (0.077 R)
• M13: 27,806,654 km (0.083 R)
• M14: 36,646,841 km (0.069 R)
• M15: 38,187,250 km (0.103 R)
• M16: 57,327,550 km (0.115 R)
• M17: 67,984,154 km (0.088 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 17,098 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit