🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.3

Radius: 8

Gravity: 12.94 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.61 AU - 0.65 AU

Year: 345 Days

Day: 6.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,420,797 km

• M1: 99,483 km (0.078 R)
• M2: 432,039 km (0.086 R)
• M3: 775,815 km (0.113 R)
• M4: 1,152,502 km (0.12 R)
• M5: 1,421,928 km (0.084 R)
• M6: 3,050,899 km (0.119 R)
• M7: 3,610,844 km (0.101 R)
• M8: 3,947,589 km (0.076 R)
• M9: 4,684,508 km (0.034 R)
• M10: 5,193,440 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.2

Radius: 10.9

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.07 AU - 1.61 AU

Year: 1071 Days

Day: 12.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,420,797 km

• M1: 135,536 km (0.11 R)
• M2: 634,145 km (0.1 R)
• M3: 1,152,652 km (0.116 R)
• M4: 1,621,342 km (0.106 R)
• M5: 1,973,346 km (0.077 R)
• M6: 2,410,171 km (0.072 R)
• M7: 2,810,794 km (0.111 R)
• M8: 3,495,653 km (0.081 R)
• M9: 4,075,794 km (0.118 R)
• M10: 4,808,524 km (0.06 R)
• M11: 7,249,662 km (0.063 R)
• M12: 7,913,129 km (0.082 R)
• M13: 9,446,657 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.1

Radius: 10.3

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.54 AU - 1.56 AU

Year: 1332 Days

Day: 5.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,420,797 km

• M1: 128,205 km (0.049 R)
• M2: 462,557 km (0.111 R)
• M3: 844,031 km (0.118 R)
• M4: 1,215,333 km (0.111 R)
• M5: 1,758,673 km (0.09 R)
• M6: 2,102,897 km (0.054 R)
• M7: 3,277,839 km (0.105 R)
• M8: 3,608,450 km (0.085 R)
• M9: 5,276,317 km (0.056 R)
• M10: 5,918,241 km (0.068 R)
• M11: 6,389,325 km (0.054 R)
• M12: 7,627,247 km (0.096 R)
• M13: 8,395,433 km (0.101 R)
• M14: 9,214,331 km (0.055 R)
• M15: 9,995,980 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.2

Radius: 14.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.44 AU - 1.9 AU

Year: 1490 Days

Day: 12.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,420,797 km

• M1: 185,352 km (0.063 R)
• M2: 746,045 km (0.108 R)
• M3: 2,042,310 km (0.066 R)
• M4: 2,996,894 km (0.098 R)
• M5: 3,487,874 km (0.081 R)
• M6: 4,799,249 km (0.119 R)
• M7: 5,849,576 km (0.102 R)
• M8: 6,395,907 km (0.115 R)
• M9: 7,169,478 km (0.119 R)
• M10: 7,900,114 km (0.106 R)
• M11: 9,305,586 km (0.061 R)
• M12: 9,900,088 km (0.113 R)
• M13: 10,456,891 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.3

Radius: 11.6

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.94 AU - 2.36 AU

Year: 2176 Days

Day: 13.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,420,797 km

• M1: 144,362 km (0.108 R)
• M2: 505,042 km (0.114 R)
• M3: 869,164 km (0.12 R)
• M4: 1,279,810 km (0.067 R)
• M5: 1,662,930 km (0.067 R)
• M6: 2,123,691 km (0.118 R)
• M7: 2,612,128 km (0.1 R)
• M8: 3,689,532 km (0.057 R)
• M9: 5,154,993 km (0.037 R)
• M10: 6,674,309 km (0.118 R)
• M11: 7,760,539 km (0.105 R)
• M12: 8,698,518 km (0.113 R)
• M13: 10,799,321 km (0.066 R)
• M14: 12,089,154 km (0.056 R)
• M15: 12,499,650 km (0.03 R)
• M16: 13,004,393 km (0.093 R)
• M17: 13,391,852 km (0.107 R)
• M18: 15,979,147 km (0.077 R)
• M19: 16,725,192 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.9

Radius: 12

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.04 AU - 2.46 AU

Year: 2330 Days

Day: 8.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,420,797 km

• M1: 149,598 km (0.055 R)
• M2: 642,373 km (0.113 R)
• M3: 1,481,318 km (0.071 R)
• M4: 2,409,274 km (0.114 R)
• M5: 3,287,563 km (0.071 R)
• M6: 3,929,786 km (0.104 R)
• M7: 5,087,375 km (0.058 R)
• M8: 6,715,000 km (0.073 R)
• M9: 7,344,507 km (0.093 R)
• M10: 8,092,646 km (0.097 R)
• M11: 9,062,639 km (0.055 R)
• M12: 9,832,170 km (0.083 R)
• M13: 10,548,744 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 13.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.38 AU - 4.78 AU

Year: 5689 Days

Day: 13 Hours

Environment

Temp: -214 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,420,797 km

• M1: 167,849 km (0.085 R)
• M2: 619,784 km (0.102 R)
• M3: 1,076,805 km (0.104 R)
• M4: 1,956,142 km (0.085 R)
• M5: 2,431,414 km (0.092 R)
• M6: 3,680,706 km (0.105 R)
• M7: 4,323,079 km (0.053 R)
• M8: 4,989,388 km (0.089 R)
• M9: 6,558,071 km (0.093 R)
• M10: 7,116,072 km (0.112 R)
• M11: 8,012,761 km (0.059 R)
• M12: 8,578,690 km (0.087 R)
• M13: 9,751,687 km (0.03 R)
• M14: 10,233,392 km (0.091 R)
• M15: 12,091,996 km (0.091 R)
• M16: 12,981,355 km (0.053 R)
• M17: 18,457,535 km (0.114 R)
• M18: 19,196,399 km (0.042 R)
• M19: 22,698,186 km (0.117 R)
• M20: 24,710,427 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.9

Radius: 6.9

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.46 AU - 7.2 AU

Year: 10993 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 30,420,797 km

• M1: 85,869 km (0.116 R)
• M2: 339,587 km (0.065 R)
• M3: 689,497 km (0.082 R)
• M4: 1,166,115 km (0.096 R)
• M5: 2,414,510 km (0.12 R)
• M6: 3,275,595 km (0.107 R)
• M7: 3,854,988 km (0.056 R)
• M8: 5,327,928 km (0.112 R)
• M9: 5,882,936 km (0.11 R)
• M10: 6,158,944 km (0.091 R)
• M11: 7,245,773 km (0.06 R)
• M12: 7,963,693 km (0.114 R)
• M13: 8,187,940 km (0.068 R)
• M14: 9,209,395 km (0.107 R)
• M15: 10,007,798 km (0.097 R)
• M16: 11,502,879 km (0.11 R)
• M17: 11,983,837 km (0.074 R)
• M18: 12,229,327 km (0.037 R)
• M19: 13,934,742 km (0.047 R)
• M20: 15,501,182 km (0.104 R)
• M21: 18,001,411 km (0.111 R)
• M22: 18,518,720 km (0.075 R)
• M23: 20,199,602 km (0.078 R)
• M24: 21,327,121 km (0.095 R)
• M25: 21,906,514 km (0.07 R)
• M26: 23,172,261 km (0.11 R)
• M27: 28,029,405 km (0.09 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 432 - 14,351 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit