🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.8

Radius: 12.6

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.49 AU - 0.73 AU

Year: 329 Days

Day: 9.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,241,980 km

• M1: 156,629 km (0.107 R)
• M2: 562,787 km (0.107 R)
• M3: 1,027,887 km (0.09 R)
• M4: 1,451,698 km (0.106 R)
• M5: 2,188,168 km (0.105 R)
• M6: 2,662,094 km (0.088 R)
• M7: 3,161,153 km (0.098 R)
• M8: 3,555,493 km (0.115 R)
• M9: 4,681,965 km (0.092 R)
• M10: 5,106,374 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.7

Radius: 12.5

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.62 AU - 0.86 AU

Year: 439 Days

Day: 10.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,241,980 km

• M1: 155,881 km (0.043 R)
• M2: 548,725 km (0.109 R)
• M3: 1,080,396 km (0.102 R)
• M4: 1,747,752 km (0.092 R)
• M5: 2,360,654 km (0.1 R)
• M6: 2,813,786 km (0.059 R)
• M7: 3,635,827 km (0.114 R)
• M8: 4,103,769 km (0.089 R)
• M9: 6,005,008 km (0.078 R)
• M10: 6,565,252 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.1

Radius: 13.5

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.72 AU - 0.84 AU

Year: 476 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,241,980 km

• M1: 169,046 km (0.083 R)
• M2: 623,075 km (0.081 R)
• M3: 1,088,474 km (0.114 R)
• M4: 1,682,078 km (0.12 R)
• M5: 2,372,173 km (0.094 R)
• M6: 3,849,752 km (0.095 R)
• M7: 4,513,966 km (0.071 R)
• M8: 5,024,992 km (0.085 R)
• M9: 5,731,543 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.9

Radius: 9.3

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.68 AU - 0.92 AU

Year: 494 Days

Day: 5.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,241,980 km

• M1: 115,639 km (0.057 R)
• M2: 426,952 km (0.037 R)
• M3: 717,322 km (0.114 R)
• M4: 1,185,264 km (0.096 R)
• M5: 1,939,237 km (0.088 R)
• M6: 2,800,622 km (0.114 R)
• M7: 4,075,495 km (0.111 R)
• M8: 4,627,511 km (0.076 R)
• M9: 5,107,421 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 10.8

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.85 AU - 0.97 AU

Year: 599 Days

Day: 10.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,241,980 km

• M1: 134,339 km (0.047 R)
• M2: 476,918 km (0.093 R)
• M3: 972,536 km (0.05 R)
• M4: 1,579,754 km (0.1 R)
• M5: 1,939,536 km (0.084 R)
• M6: 2,584,154 km (0.082 R)
• M7: 3,163,546 km (0.094 R)
• M8: 3,564,917 km (0.119 R)
• M9: 4,178,119 km (0.078 R)
• M10: 4,728,190 km (0.119 R)
• M11: 7,696,362 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.1

Radius: 13.7

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.14 AU - 3.2 AU

Year: 3011 Days

Day: 12.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,241,980 km

• M1: 170,841 km (0.052 R)
• M2: 662,719 km (0.063 R)
• M3: 1,826,141 km (0.051 R)
• M4: 2,707,871 km (0.066 R)
• M5: 4,486,291 km (0.036 R)
• M6: 5,571,025 km (0.088 R)
• M7: 6,147,126 km (0.118 R)
• M8: 8,466,641 km (0.09 R)
• M9: 10,646,132 km (0.037 R)
• M10: 14,813,630 km (0.09 R)
• M11: 18,909,171 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.9

Radius: 12.6

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.83 AU - 3.29 AU

Year: 3695 Days

Day: 9.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,241,980 km

• M1: 156,629 km (0.119 R)
• M2: 624,122 km (0.116 R)
• M3: 1,091,915 km (0.107 R)
• M4: 1,638,097 km (0.078 R)
• M5: 2,292,438 km (0.087 R)
• M6: 3,080,519 km (0.105 R)
• M7: 3,794,550 km (0.113 R)
• M8: 4,433,931 km (0.088 R)
• M9: 5,094,406 km (0.088 R)
• M10: 5,901,486 km (0.09 R)
• M11: 7,253,851 km (0.115 R)
• M12: 8,414,282 km (0.064 R)
• M13: 8,984,399 km (0.119 R)
• M14: 9,580,248 km (0.091 R)
• M15: 10,241,919 km (0.074 R)
• M16: 11,270,404 km (0.096 R)
• M17: 12,276,151 km (0.113 R)
• M18: 12,870,503 km (0.051 R)
• M19: 14,820,811 km (0.079 R)
• M20: 16,572,452 km (0.086 R)
• M21: 19,916,862 km (0.112 R)
• M22: 22,652,110 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.1

Radius: 11.6

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.31 AU - 5.87 AU

Year: 7927 Days

Day: 13.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 36,241,980 km

• M1: 145,559 km (0.088 R)
• M2: 815,907 km (0.047 R)
• M3: 1,307,037 km (0.114 R)
• M4: 1,839,007 km (0.082 R)
• M5: 2,493,797 km (0.109 R)
• M6: 3,055,537 km (0.059 R)
• M7: 4,378,580 km (0.111 R)
• M8: 5,614,707 km (0.116 R)
• M9: 6,805,656 km (0.042 R)
• M10: 8,808,771 km (0.09 R)
• M11: 9,261,604 km (0.092 R)
• M12: 9,777,567 km (0.101 R)
• M13: 10,815,926 km (0.047 R)
• M14: 13,762,406 km (0.103 R)
• M15: 15,452,413 km (0.047 R)
• M16: 15,978,698 km (0.105 R)
• M17: 20,159,510 km (0.091 R)
• M18: 21,592,358 km (0.079 R)
• M19: 24,482,589 km (0.095 R)
• M20: 24,928,241 km (0.11 R)
• M21: 25,652,744 km (0.094 R)
• M22: 27,048,941 km (0.109 R)
• M23: 27,910,475 km (0.077 R)
• M24: 29,287,074 km (0.05 R)
• M25: 30,811,776 km (0.03 R)
• M26: 33,578,738 km (0.037 R)
• M27: 39,115,056 km (0.079 R)
• M28: 40,962,739 km (0.112 R)
• M29: 43,126,224 km (0.084 R)
• M30: 43,646,226 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632

Radius: 5.7

Gravity: 19.45 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.9 AU - 8.54 AU

Year: 14806 Days

Day: 20.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 69.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 36,241,980 km

• M1: 70,909 km (0.052 R)
• M2: 318,943 km (0.11 R)
• M3: 540,946 km (0.118 R)
• M4: 826,977 km (0.118 R)
• M5: 1,705,715 km (0.119 R)
• M6: 2,347,191 km (0.112 R)
• M7: 6,559,867 km (0.101 R)
• M8: 7,281,826 km (0.107 R)
• M9: 8,584,225 km (0.115 R)
• M10: 8,782,293 km (0.089 R)
• M11: 9,136,092 km (0.091 R)
• M12: 10,034,876 km (0.12 R)
• M13: 10,421,586 km (0.099 R)
• M14: 10,875,765 km (0.096 R)
• M15: 11,402,200 km (0.104 R)
• M16: 13,412,347 km (0.114 R)
• M17: 14,017,620 km (0.033 R)
• M18: 14,570,833 km (0.113 R)
• M19: 14,852,825 km (0.053 R)
• M20: 15,355,174 km (0.048 R)
• M21: 15,720,791 km (0.029 R)
• M22: 17,956,980 km (0.117 R)
• M23: 18,774,832 km (0.088 R)
• M24: 20,572,550 km (0.106 R)
• M25: 23,048,694 km (0.094 R)
• M26: 25,512,122 km (0.083 R)
• M27: 31,773,690 km (0.1 R)
• M28: 32,486,973 km (0.085 R)
• M29: 34,192,688 km (0.106 R)
• M30: 38,180,518 km (0.12 R)
• M31: 40,632,577 km (0.027 R)
• M32: 41,472,718 km (0.101 R)
• M33: 44,356,965 km (0.069 R)
• M34: 44,800,673 km (0.05 R)
• M35: 46,150,046 km (0.099 R)
• M36: 50,843,230 km (0.081 R)
• M37: 56,016,923 km (0.118 R)
• M38: 60,436,343 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.3

Radius: 3.1

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.49 AU - 11.27 AU

Year: 19830 Days

Day: 21.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,241,980 km

• M1: 38,746 km (0.102 R)
• M2: 155,881 km (0.111 R)
• M3: 319,541 km (0.083 R)
• M4: 720,015 km (0.109 R)
• M5: 1,281,306 km (0.104 R)
• M6: 2,917,009 km (0.066 R)
• M7: 3,080,669 km (0.1 R)
• M8: 4,756,763 km (0.108 R)
• M9: 5,613,511 km (0.117 R)
• M10: 6,061,855 km (0.071 R)
• M11: 7,549,905 km (0.042 R)
• M12: 8,256,007 km (0.087 R)
• M13: 9,048,128 km (0.042 R)
• M14: 10,258,824 km (0.046 R)
• M15: 10,975,996 km (0.106 R)
• M16: 12,297,394 km (0.076 R)
• M17: 12,724,346 km (0.063 R)
• M18: 13,834,961 km (0.06 R)
• M19: 15,557,580 km (0.089 R)
• M20: 23,714,554 km (0.064 R)
• M21: 24,043,370 km (0.115 R)
• M22: 24,292,001 km (0.115 R)
• M23: 24,710,127 km (0.112 R)
• M24: 30,980,522 km (0.058 R)
• M25: 31,176,645 km (0.11 R)
• M26: 33,388,001 km (0.086 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: 481 - 11,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit