🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.4

Radius: 14.7

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.76 AU - 0.86 AU

Year: 503 Days

Day: 12.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,609,835 km

• M1: 182,958 km (0.096 R)
• M2: 733,628 km (0.1 R)
• M3: 1,541,606 km (0.108 R)
• M4: 2,365,591 km (0.09 R)
• M5: 2,972,809 km (0.071 R)
• M6: 4,034,355 km (0.11 R)
• M7: 4,547,326 km (0.11 R)
• M8: 5,088,572 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.7

Radius: 8.8

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.85 AU - 0.91 AU

Year: 570 Days

Day: 13.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,609,835 km

• M1: 115,340 km (0.1 R)
• M2: 431,440 km (0.083 R)
• M3: 933,491 km (0.092 R)
• M4: 1,278,164 km (0.078 R)
• M5: 1,761,665 km (0.102 R)
• M6: 2,095,118 km (0.078 R)
• M7: 2,411,518 km (0.073 R)
• M8: 3,444,790 km (0.099 R)
• M9: 5,018,410 km (0.107 R)
• M10: 6,018,173 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 13.5

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.32 AU - 1.36 AU

Year: 1071 Days

Day: 8.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,609,835 km

• M1: 168,298 km (0.062 R)
• M2: 622,028 km (0.102 R)
• M3: 1,136,645 km (0.086 R)
• M4: 1,630,916 km (0.065 R)
• M5: 2,090,630 km (0.117 R)
• M6: 2,565,603 km (0.086 R)
• M7: 3,005,571 km (0.106 R)
• M8: 3,437,460 km (0.092 R)
• M9: 5,010,332 km (0.102 R)
• M10: 5,601,991 km (0.087 R)
• M11: 7,892,036 km (0.096 R)
• M12: 8,502,993 km (0.061 R)
• M13: 9,088,220 km (0.099 R)
• M14: 9,729,995 km (0.105 R)
• M15: 10,558,767 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.7

Radius: 13.3

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.99 AU - 4.57 AU

Year: 5073 Days

Day: 10.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,609,835 km

• M1: 175,329 km (0.055 R)
• M2: 594,652 km (0.116 R)
• M3: 1,032,824 km (0.107 R)
• M4: 1,533,378 km (0.094 R)
• M5: 2,226,465 km (0.095 R)
• M6: 2,972,360 km (0.115 R)
• M7: 3,475,757 km (0.067 R)
• M8: 3,945,943 km (0.063 R)
• M9: 6,425,528 km (0.109 R)
• M10: 6,972,009 km (0.11 R)
• M11: 9,113,502 km (0.064 R)
• M12: 10,270,193 km (0.074 R)
• M13: 14,546,149 km (0.119 R)
• M14: 17,014,663 km (0.081 R)
• M15: 17,875,450 km (0.07 R)
• M16: 21,540,448 km (0.066 R)
• M17: 22,329,427 km (0.106 R)
• M18: 26,403,575 km (0.044 R)
• M19: 27,058,814 km (0.081 R)
• M20: 28,830,502 km (0.098 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.6

Radius: 3.2

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.01 AU - 8.29 AU

Year: 13197 Days

Day: 23 Hours

Environment

Temp: -222 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,609,835 km

• M1: 40,541 km (0.049 R)
• M2: 178,321 km (0.082 R)
• M3: 311,313 km (0.077 R)
• M4: 876,793 km (0.051 R)
• M5: 1,006,195 km (0.034 R)
• M6: 1,111,512 km (0.11 R)
• M7: 1,224,159 km (0.111 R)
• M8: 1,947,166 km (0.111 R)
• M9: 2,241,126 km (0.109 R)
• M10: 2,661,645 km (0.057 R)
• M11: 2,761,876 km (0.045 R)
• M12: 3,378,070 km (0.113 R)
• M13: 3,615,930 km (0.105 R)
• M14: 3,759,843 km (0.099 R)
• M15: 5,825,042 km (0.107 R)
• M16: 7,338,075 km (0.084 R)
• M17: 8,290,415 km (0.119 R)
• M18: 9,169,751 km (0.09 R)
• M19: 10,728,262 km (0.119 R)
• M20: 16,558,689 km (0.071 R)
• M21: 18,667,570 km (0.069 R)
• M22: 19,471,060 km (0.041 R)
• M23: 20,621,318 km (0.102 R)
• M24: 24,052,645 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545

Radius: 6.3

Gravity: 13.73 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.17 AU - 9.95 AU

Year: 17287 Days

Day: 22.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 77,609,835 km

• M1: 78,539 km (0.093 R)
• M2: 281,394 km (0.115 R)
• M3: 530,624 km (0.068 R)
• M4: 740,360 km (0.083 R)
• M5: 950,694 km (0.073 R)
• M6: 1,175,690 km (0.036 R)
• M7: 1,511,238 km (0.09 R)
• M8: 3,475,009 km (0.077 R)
• M9: 4,167,797 km (0.08 R)
• M10: 4,386,210 km (0.047 R)
• M11: 4,880,331 km (0.117 R)
• M12: 6,628,083 km (0.101 R)
• M13: 7,100,813 km (0.06 R)
• M14: 8,806,228 km (0.1 R)
• M15: 9,062,789 km (0.089 R)
• M16: 9,324,585 km (0.072 R)
• M17: 10,365,188 km (0.104 R)
• M18: 11,849,498 km (0.09 R)
• M19: 13,268,434 km (0.116 R)
• M20: 14,088,230 km (0.047 R)
• M21: 15,678,306 km (0.1 R)
• M22: 16,516,652 km (0.078 R)
• M23: 19,468,966 km (0.081 R)
• M24: 22,468,254 km (0.062 R)
• M25: 26,499,617 km (0.08 R)
• M26: 26,820,056 km (0.085 R)
• M27: 28,017,288 km (0.113 R)
• M28: 28,461,294 km (0.107 R)
• M29: 29,821,737 km (0.087 R)
• M30: 36,878,867 km (0.062 R)
• M31: 37,950,736 km (0.071 R)
• M32: 39,319,407 km (0.106 R)
• M33: 40,016,084 km (0.098 R)
• M34: 45,276,244 km (0.094 R)
• M35: 56,258,224 km (0.027 R)
• M36: 56,964,924 km (0.037 R)
• M37: 60,218,229 km (0.094 R)
• M38: 63,402,570 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.4

Radius: 5.6

Gravity: 20.93 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 8.32 AU - 11.2 AU

Year: 21047 Days

Day: 17.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,609,835 km

• M1: 82,578 km (0.092 R)
• M2: 260,450 km (0.077 R)
• M3: 727,943 km (0.092 R)
• M4: 906,563 km (0.082 R)
• M5: 1,416,841 km (0.07 R)
• M6: 1,827,039 km (0.091 R)
• M7: 3,480,394 km (0.112 R)
• M8: 3,997,255 km (0.055 R)
• M9: 5,106,972 km (0.115 R)
• M10: 5,651,808 km (0.115 R)
• M11: 6,022,062 km (0.097 R)
• M12: 7,182,643 km (0.094 R)
• M13: 7,470,319 km (0.109 R)
• M14: 12,211,674 km (0.112 R)
• M15: 13,253,923 km (0.064 R)
• M16: 13,614,154 km (0.06 R)
• M17: 15,994,705 km (0.041 R)
• M18: 16,734,766 km (0.094 R)
• M19: 17,583,435 km (0.05 R)
• M20: 20,396,323 km (0.076 R)
• M21: 21,859,390 km (0.118 R)
• M22: 25,211,430 km (0.06 R)
• M23: 28,412,525 km (0.087 R)
• M24: 36,163,340 km (0.082 R)
• M25: 36,725,080 km (0.106 R)
• M26: 39,919,294 km (0.053 R)
• M27: 43,768,148 km (0.11 R)
• M28: 45,700,504 km (0.091 R)
• M29: 46,357,089 km (0.055 R)
• M30: 46,687,700 km (0.114 R)
• M31: 48,364,393 km (0.085 R)
• M32: 54,733,074 km (0.036 R)
• M33: 55,287,783 km (0.102 R)
• M34: 56,408,271 km (0.078 R)
• M35: 57,353,430 km (0.095 R)
• M36: 57,925,642 km (0.077 R)
• M37: 62,238,698 km (0.113 R)
• M38: 66,131,684 km (0.117 R)
• M39: 69,966,625 km (0.041 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: 271 - 18,876 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit