🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.7

Radius: 10.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.67 AU - 0.67 AU

Year: 366 Days

Day: 5.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,558,340 km

• M1: 131,945 km (0.104 R)
• M2: 482,304 km (0.056 R)
• M3: 907,311 km (0.084 R)
• M4: 1,771,837 km (0.098 R)
• M5: 2,349,435 km (0.07 R)
• M6: 2,973,108 km (0.038 R)
• M7: 3,542,627 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.8

Radius: 10.4

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.74 AU - 0.98 AU

Year: 532 Days

Day: 6.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 59,558,340 km

• M1: 129,402 km (0.106 R)
• M2: 564,882 km (0.113 R)
• M3: 935,884 km (0.097 R)
• M4: 1,419,235 km (0.104 R)
• M5: 1,745,059 km (0.061 R)
• M6: 2,439,792 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.1

Radius: 10.6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.84 AU - 1.04 AU

Year: 608 Days

Day: 13.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,558,340 km

• M1: 132,693 km (0.084 R)
• M2: 581,188 km (0.12 R)
• M3: 1,212,491 km (0.047 R)
• M4: 1,597,256 km (0.113 R)
• M5: 2,204,325 km (0.115 R)
• M6: 2,693,360 km (0.045 R)
• M7: 4,385,761 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.3

Radius: 8.7

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.92 AU - 1.38 AU

Year: 822 Days

Day: 6.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,558,340 km

• M1: 108,309 km (0.079 R)
• M2: 512,522 km (0.106 R)
• M3: 915,689 km (0.113 R)
• M4: 1,453,493 km (0.118 R)
• M5: 2,067,891 km (0.119 R)
• M6: 2,664,338 km (0.106 R)
• M7: 3,035,341 km (0.041 R)
• M8: 3,440,751 km (0.069 R)
• M9: 4,021,490 km (0.105 R)
• M10: 5,188,802 km (0.071 R)
• M11: 5,591,220 km (0.114 R)
• M12: 6,393,813 km (0.096 R)
• M13: 7,039,029 km (0.085 R)
• M14: 7,341,964 km (0.053 R)
• M15: 7,800,482 km (0.076 R)
• M16: 8,150,541 km (0.11 R)
• M17: 9,098,842 km (0.049 R)
• M18: 9,402,825 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.5

Radius: 8.8

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.18 AU - 2.36 AU

Year: 2281 Days

Day: 8.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,558,340 km

• M1: 110,702 km (0.119 R)
• M2: 799,301 km (0.091 R)
• M3: 1,248,993 km (0.119 R)
• M4: 1,716,636 km (0.05 R)
• M5: 2,449,964 km (0.089 R)
• M6: 3,686,391 km (0.1 R)
• M7: 4,957,524 km (0.088 R)
• M8: 5,481,565 km (0.093 R)
• M9: 7,151,825 km (0.066 R)
• M10: 7,821,276 km (0.083 R)
• M11: 9,708,303 km (0.101 R)
• M12: 11,635,872 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823

Radius: 12.2

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.26 AU - 2.46 AU

Year: 2418 Days

Day: 7.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,558,340 km

• M1: 151,692 km (0.028 R)
• M2: 770,878 km (0.117 R)
• M3: 1,203,216 km (0.108 R)
• M4: 2,294,981 km (0.046 R)
• M5: 2,770,253 km (0.066 R)
• M6: 3,156,814 km (0.091 R)
• M7: 3,863,066 km (0.104 R)
• M8: 4,562,286 km (0.039 R)
• M9: 5,793,626 km (0.119 R)
• M10: 6,349,382 km (0.089 R)
• M11: 6,768,107 km (0.117 R)
• M12: 9,321,892 km (0.119 R)
• M13: 11,170,922 km (0.069 R)
• M14: 11,991,915 km (0.119 R)
• M15: 12,985,394 km (0.073 R)
• M16: 13,524,994 km (0.089 R)
• M17: 14,220,624 km (0.074 R)
• M18: 15,283,816 km (0.107 R)
• M19: 15,733,657 km (0.076 R)
• M20: 17,896,393 km (0.035 R)
• M21: 19,020,472 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.3

Radius: 3.9

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.09 AU - 7.03 AU

Year: 9948 Days

Day: 21.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,558,340 km

• M1: 49,517 km (0.037 R)
• M2: 373,247 km (0.11 R)
• M3: 762,500 km (0.106 R)
• M4: 1,642,585 km (0.072 R)
• M5: 2,236,787 km (0.097 R)
• M6: 2,443,232 km (0.063 R)
• M7: 3,591,994 km (0.075 R)
• M8: 4,195,323 km (0.092 R)
• M9: 4,440,962 km (0.105 R)
• M10: 6,407,576 km (0.085 R)
• M11: 7,612,437 km (0.107 R)
• M12: 9,367,819 km (0.119 R)
• M13: 11,036,882 km (0.098 R)
• M14: 12,163,803 km (0.113 R)
• M15: 20,194,665 km (0.099 R)
• M16: 21,872,705 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.8

Radius: 3.7

Gravity: 47.47 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.67 AU - 8.71 AU

Year: 14221 Days

Day: 22.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,558,340 km

• M1: 54,454 km (0.047 R)
• M2: 212,878 km (0.117 R)
• M3: 441,463 km (0.049 R)
• M4: 921,224 km (0.082 R)
• M5: 2,032,885 km (0.08 R)
• M6: 3,415,768 km (0.104 R)
• M7: 4,058,291 km (0.111 R)
• M8: 4,299,592 km (0.11 R)
• M9: 6,793,539 km (0.068 R)
• M10: 7,351,987 km (0.09 R)
• M11: 8,856,044 km (0.108 R)
• M12: 10,274,980 km (0.046 R)
• M13: 10,722,876 km (0.081 R)
• M14: 12,836,544 km (0.115 R)
• M15: 13,421,771 km (0.066 R)
• M16: 13,687,457 km (0.117 R)
• M17: 14,229,450 km (0.1 R)
• M18: 14,997,935 km (0.104 R)
• M19: 17,945,162 km (0.072 R)
• M20: 18,430,308 km (0.062 R)
• M21: 18,593,968 km (0.108 R)
• M22: 19,511,452 km (0.103 R)
• M23: 20,024,423 km (0.036 R)
• M24: 23,388,131 km (0.108 R)
• M25: 29,276,602 km (0.082 R)
• M26: 30,288,333 km (0.105 R)
• M27: 32,500,437 km (0.102 R)
• M28: 32,979,449 km (0.117 R)
• M29: 34,942,622 km (0.088 R)
• M30: 35,825,548 km (0.119 R)
• M31: 37,899,125 km (0.104 R)
• M32: 38,429,898 km (0.041 R)
• M33: 38,563,190 km (0.065 R)
• M34: 58,317,289 km (0.114 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 12,022 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit