🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.8

Radius: 8.9

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.59 AU - 0.73 AU

Year: 364 Days

Day: 9.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,358,388 km

• M1: 111,151 km (0.106 R)
• M2: 434,731 km (0.069 R)
• M3: 990,787 km (0.07 R)
• M4: 1,436,439 km (0.099 R)
• M5: 1,833,771 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.6

Radius: 11.1

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.61 AU - 0.71 AU

Year: 364 Days

Day: 5.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,358,388 km

• M1: 138,378 km (0.07 R)
• M2: 659,876 km (0.077 R)
• M3: 1,063,042 km (0.059 R)
• M4: 1,544,448 km (0.062 R)
• M5: 1,970,503 km (0.119 R)
• M6: 2,354,670 km (0.092 R)
• M7: 2,738,239 km (0.045 R)
• M8: 3,299,830 km (0.048 R)
• M9: 4,467,292 km (0.118 R)
• M10: 4,952,886 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.1

Radius: 14.6

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.34 AU - 1.96 AU

Year: 1438 Days

Day: 14 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,358,388 km

• M1: 181,612 km (0.064 R)
• M2: 1,036,713 km (0.063 R)
• M3: 1,856,809 km (0.071 R)
• M4: 2,610,782 km (0.097 R)
• M5: 3,097,125 km (0.065 R)
• M6: 4,021,191 km (0.065 R)
• M7: 4,956,626 km (0.119 R)
• M8: 5,962,822 km (0.076 R)
• M9: 6,790,995 km (0.109 R)
• M10: 8,233,867 km (0.106 R)
• M11: 9,677,037 km (0.08 R)
• M12: 11,609,992 km (0.09 R)
• M13: 13,665,616 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144

Radius: 8

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.52 AU - 1.8 AU

Year: 1451 Days

Day: 14.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,358,388 km

• M1: 99,483 km (0.075 R)
• M2: 391,498 km (0.08 R)
• M3: 948,002 km (0.109 R)
• M4: 1,478,476 km (0.069 R)
• M5: 1,819,858 km (0.112 R)
• M6: 2,069,986 km (0.083 R)
• M7: 2,333,128 km (0.101 R)
• M8: 2,651,622 km (0.113 R)
• M9: 3,159,208 km (0.111 R)
• M10: 3,523,329 km (0.091 R)
• M11: 3,959,108 km (0.118 R)
• M12: 4,770,377 km (0.062 R)
• M13: 6,308,393 km (0.103 R)
• M14: 6,718,440 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543

Radius: 8.4

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2 AU - 2.22 AU

Year: 2079 Days

Day: 10.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,358,388 km

• M1: 104,419 km (0.1 R)
• M2: 422,614 km (0.027 R)
• M3: 1,021,753 km (0.09 R)
• M4: 1,316,760 km (0.048 R)
• M5: 1,629,270 km (0.079 R)
• M6: 1,923,679 km (0.099 R)
• M7: 2,593,877 km (0.085 R)
• M8: 3,378,070 km (0.03 R)
• M9: 3,825,517 km (0.053 R)
• M10: 4,331,307 km (0.104 R)
• M11: 5,662,130 km (0.065 R)
• M12: 6,269,348 km (0.089 R)
• M13: 6,999,984 km (0.032 R)
• M14: 7,584,462 km (0.112 R)
• M15: 8,021,438 km (0.086 R)
• M16: 8,661,418 km (0.104 R)
• M17: 9,269,383 km (0.092 R)
• M18: 10,286,798 km (0.113 R)
• M19: 10,606,040 km (0.087 R)
• M20: 10,895,363 km (0.113 R)
• M21: 12,582,228 km (0.091 R)
• M22: 14,881,847 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.1

Radius: 14.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.75 AU - 3.49 AU

Year: 3738 Days

Day: 11.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,358,388 km

• M1: 181,612 km (0.077 R)
• M2: 671,844 km (0.087 R)
• M3: 1,263,055 km (0.082 R)
• M4: 1,721,423 km (0.06 R)
• M5: 2,805,558 km (0.074 R)
• M6: 3,589,900 km (0.092 R)
• M7: 4,431,987 km (0.092 R)
• M8: 5,003,002 km (0.109 R)
• M9: 5,622,786 km (0.061 R)
• M10: 6,959,891 km (0.12 R)
• M11: 8,434,029 km (0.079 R)
• M12: 9,562,595 km (0.114 R)
• M13: 10,444,923 km (0.071 R)
• M14: 11,828,404 km (0.114 R)
• M15: 12,329,857 km (0.06 R)
• M16: 13,064,532 km (0.113 R)
• M17: 18,157,741 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839

Radius: 10.3

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.04 AU - 3.84 AU

Year: 4327 Days

Day: 8.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,358,388 km

• M1: 129,103 km (0.107 R)
• M2: 965,056 km (0.117 R)
• M3: 3,199,898 km (0.08 R)
• M4: 3,586,011 km (0.045 R)
• M5: 4,355,243 km (0.117 R)
• M6: 4,935,533 km (0.107 R)
• M7: 5,425,017 km (0.117 R)
• M8: 6,281,615 km (0.115 R)
• M9: 7,572,794 km (0.09 R)
• M10: 8,150,690 km (0.09 R)
• M11: 9,435,736 km (0.07 R)
• M12: 11,774,998 km (0.111 R)
• M13: 12,452,377 km (0.051 R)
• M14: 14,367,828 km (0.047 R)
• M15: 18,904,384 km (0.037 R)
• M16: 19,564,709 km (0.068 R)
• M17: 24,314,591 km (0.086 R)
• M18: 25,174,629 km (0.077 R)
• M19: 26,054,713 km (0.084 R)
• M20: 27,038,170 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405

Radius: 10.1

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.57 AU - 4.01 AU

Year: 5004 Days

Day: 9 Hours

Environment

Temp: -215 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,358,388 km

• M1: 125,662 km (0.091 R)
• M2: 753,824 km (0.104 R)
• M3: 1,134,999 km (0.027 R)
• M4: 1,610,870 km (0.069 R)
• M5: 1,968,409 km (0.074 R)
• M6: 3,298,633 km (0.118 R)
• M7: 4,462,654 km (0.081 R)
• M8: 5,494,580 km (0.062 R)
• M9: 7,413,023 km (0.069 R)
• M10: 7,920,459 km (0.047 R)
• M11: 10,063,150 km (0.098 R)
• M12: 11,600,417 km (0.072 R)
• M13: 13,288,480 km (0.1 R)
• M14: 14,974,597 km (0.099 R)
• M15: 15,621,758 km (0.086 R)
• M16: 16,175,120 km (0.086 R)
• M17: 23,729,364 km (0.116 R)
• M18: 24,166,489 km (0.096 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 19,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit