🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.5

Radius: 14.1

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.83 AU - 1.19 AU

Year: 666 Days

Day: 7.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 48,628,739 km

• M1: 175,478 km (0.105 R)
• M2: 627,264 km (0.038 R)
• M3: 1,479,822 km (0.062 R)
• M4: 2,104,692 km (0.067 R)
• M5: 3,134,375 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.2

Radius: 10.5

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.8 AU - 1.24 AU

Year: 676 Days

Day: 13 Hours

Environment

Temp: -156 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,628,739 km

• M1: 130,898 km (0.113 R)
• M2: 519,553 km (0.047 R)
• M3: 1,064,239 km (0.084 R)
• M4: 1,443,470 km (0.074 R)
• M5: 1,791,285 km (0.058 R)
• M6: 2,295,879 km (0.085 R)
• M7: 2,627,088 km (0.078 R)
• M8: 3,719,003 km (0.088 R)
• M9: 4,102,722 km (0.09 R)
• M10: 4,480,157 km (0.119 R)
• M11: 4,984,900 km (0.068 R)
• M12: 5,545,892 km (0.103 R)
• M13: 7,507,569 km (0.029 R)
• M14: 8,002,289 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.8

Radius: 10.9

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.94 AU - 1.28 AU

Year: 767 Days

Day: 11.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,628,739 km

• M1: 135,536 km (0.087 R)
• M2: 594,053 km (0.117 R)
• M3: 1,089,820 km (0.071 R)
• M4: 1,620,295 km (0.066 R)
• M5: 2,052,483 km (0.094 R)
• M6: 2,426,627 km (0.073 R)
• M7: 3,453,766 km (0.114 R)
• M8: 3,925,598 km (0.101 R)
• M9: 4,474,024 km (0.096 R)
• M10: 5,605,432 km (0.118 R)
• M11: 6,175,101 km (0.091 R)
• M12: 6,583,353 km (0.049 R)
• M13: 7,406,441 km (0.104 R)
• M14: 7,942,450 km (0.071 R)
• M15: 9,119,486 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 12.1

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.14 AU - 1.16 AU

Year: 809 Days

Day: 14.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,628,739 km

• M1: 150,495 km (0.116 R)
• M2: 583,432 km (0.116 R)
• M3: 1,069,176 km (0.047 R)
• M4: 1,618,649 km (0.076 R)
• M5: 2,180,987 km (0.066 R)
• M6: 2,673,314 km (0.11 R)
• M7: 3,090,542 km (0.063 R)
• M8: 3,977,209 km (0.085 R)
• M9: 4,422,711 km (0.066 R)
• M10: 4,932,391 km (0.117 R)
• M11: 6,160,590 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.5

Radius: 14

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.28 AU - 2.72 AU

Year: 2593 Days

Day: 7 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,628,739 km

• M1: 174,132 km (0.079 R)
• M2: 613,351 km (0.077 R)
• M3: 1,270,236 km (0.085 R)
• M4: 1,888,224 km (0.075 R)
• M5: 2,531,495 km (0.116 R)
• M6: 3,456,160 km (0.117 R)
• M7: 4,084,919 km (0.111 R)
• M8: 4,745,843 km (0.099 R)
• M9: 5,358,147 km (0.081 R)
• M10: 5,895,652 km (0.11 R)
• M11: 6,686,875 km (0.082 R)
• M12: 7,518,041 km (0.029 R)
• M13: 8,067,813 km (0.12 R)
• M14: 8,513,914 km (0.116 R)
• M15: 9,214,032 km (0.068 R)
• M16: 9,880,491 km (0.079 R)
• M17: 14,575,919 km (0.119 R)
• M18: 15,824,762 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501

Radius: 13.4

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.61 AU - 6.07 AU

Year: 8095 Days

Day: 11.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,628,739 km

• M1: 166,802 km (0.087 R)
• M2: 815,458 km (0.088 R)
• M3: 1,795,474 km (0.105 R)
• M4: 3,524,526 km (0.094 R)
• M5: 4,453,529 km (0.094 R)
• M6: 5,417,687 km (0.056 R)
• M7: 5,853,316 km (0.117 R)
• M8: 6,346,091 km (0.087 R)
• M9: 6,938,050 km (0.108 R)
• M10: 7,719,998 km (0.11 R)
• M11: 8,395,582 km (0.071 R)
• M12: 10,328,087 km (0.077 R)
• M13: 11,099,564 km (0.109 R)
• M14: 11,805,666 km (0.104 R)
• M15: 13,196,776 km (0.112 R)
• M16: 16,047,812 km (0.075 R)
• M17: 17,282,294 km (0.114 R)
• M18: 18,719,331 km (0.108 R)
• M19: 20,457,509 km (0.085 R)
• M20: 26,760,666 km (0.091 R)
• M21: 27,300,265 km (0.101 R)
• M22: 28,308,555 km (0.078 R)
• M23: 29,151,838 km (0.118 R)
• M24: 33,725,793 km (0.101 R)
• M25: 34,780,009 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.8

Radius: 4.7

Gravity: 35.07 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 6.67 AU - 7.41 AU

Year: 12254 Days

Day: 21.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,628,739 km

• M1: 58,493 km (0.037 R)
• M2: 267,032 km (0.113 R)
• M3: 550,670 km (0.088 R)
• M4: 762,650 km (0.051 R)
• M5: 1,631,963 km (0.084 R)
• M6: 3,144,098 km (0.115 R)
• M7: 5,989,899 km (0.085 R)
• M8: 10,976,295 km (0.089 R)
• M9: 14,006,250 km (0.118 R)
• M10: 14,275,826 km (0.088 R)
• M11: 18,340,998 km (0.105 R)
• M12: 19,237,239 km (0.084 R)
• M13: 19,907,288 km (0.111 R)
• M14: 20,679,362 km (0.116 R)
• M15: 26,651,758 km (0.086 R)
• M16: 27,589,139 km (0.116 R)
• M17: 30,532,477 km (0.107 R)
• M18: 35,766,457 km (0.101 R)
• M19: 42,827,028 km (0.115 R)
• M20: 47,813,723 km (0.089 R)
• M21: 49,350,692 km (0.1 R)
• M22: 53,829,203 km (0.057 R)
• M23: 54,822,832 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.4

Radius: 4.9

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 8.1 AU - 9.12 AU

Year: 16573 Days

Day: 24.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,628,739 km

• M1: 60,886 km (0.113 R)
• M2: 1,854,415 km (0.083 R)
• M3: 3,736,955 km (0.095 R)
• M4: 5,299,056 km (0.081 R)
• M5: 6,850,685 km (0.07 R)
• M6: 7,048,752 km (0.072 R)
• M7: 14,408,220 km (0.093 R)
• M8: 16,719,656 km (0.107 R)
• M9: 17,079,290 km (0.068 R)
• M10: 17,517,462 km (0.073 R)
• M11: 28,437,957 km (0.067 R)
• M12: 41,047,711 km (0.08 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 15,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit