🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.9

Radius: 9.7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.77 AU - 1.03 AU

Year: 560 Days

Day: 10.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,524,905 km

• M1: 120,576 km (0.111 R)
• M2: 463,454 km (0.08 R)
• M3: 888,462 km (0.117 R)
• M4: 1,683,425 km (0.052 R)
• M5: 2,177,995 km (0.107 R)
• M6: 2,589,689 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.4

Radius: 8.4

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.8 AU - 1.02 AU

Year: 569 Days

Day: 14.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,524,905 km

• M1: 104,868 km (0.051 R)
• M2: 455,675 km (0.062 R)
• M3: 726,896 km (0.077 R)
• M4: 1,028,336 km (0.109 R)
• M5: 1,294,919 km (0.118 R)
• M6: 2,022,414 km (0.078 R)
• M7: 2,608,538 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.5

Radius: 8.1

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.84 AU - 1.08 AU

Year: 617 Days

Day: 9.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,524,905 km

• M1: 100,679 km (0.029 R)
• M2: 632,649 km (0.095 R)
• M3: 1,023,249 km (0.111 R)
• M4: 1,841,999 km (0.082 R)
• M5: 2,249,204 km (0.063 R)
• M6: 2,672,267 km (0.047 R)
• M7: 3,171,774 km (0.088 R)
• M8: 3,444,042 km (0.086 R)
• M9: 3,705,090 km (0.07 R)
• M10: 4,678,075 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.7

Radius: 13.1

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.28 AU - 1.54 AU

Year: 1098 Days

Day: 12.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 123.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,524,905 km

• M1: 165,006 km (0.031 R)
• M2: 851,511 km (0.059 R)
• M3: 1,405,622 km (0.067 R)
• M4: 1,876,107 km (0.041 R)
• M5: 3,145,744 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.7

Radius: 10.4

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.79 AU - 2.03 AU

Year: 1732 Days

Day: 9 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,524,905 km

• M1: 129,402 km (0.076 R)
• M2: 467,942 km (0.106 R)
• M3: 1,182,422 km (0.088 R)
• M4: 2,058,467 km (0.03 R)
• M5: 3,149,035 km (0.081 R)
• M6: 3,700,752 km (0.086 R)
• M7: 4,165,254 km (0.119 R)
• M8: 4,608,362 km (0.06 R)
• M9: 5,820,105 km (0.062 R)
• M10: 6,550,891 km (0.081 R)
• M11: 7,314,289 km (0.046 R)
• M12: 10,581,506 km (0.063 R)
• M13: 11,116,618 km (0.093 R)
• M14: 11,971,869 km (0.1 R)
• M15: 13,939,679 km (0.1 R)
• M16: 14,452,650 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.2

Radius: 13.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.11 AU - 4.33 AU

Year: 4707 Days

Day: 13.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,524,905 km

• M1: 172,187 km (0.065 R)
• M2: 782,846 km (0.111 R)
• M3: 1,327,831 km (0.119 R)
• M4: 2,391,322 km (0.067 R)
• M5: 3,267,217 km (0.097 R)
• M6: 3,941,605 km (0.08 R)
• M7: 4,932,990 km (0.072 R)
• M8: 5,542,900 km (0.116 R)
• M9: 6,025,653 km (0.071 R)
• M10: 6,818,821 km (0.083 R)
• M11: 9,742,113 km (0.085 R)
• M12: 11,277,585 km (0.119 R)
• M13: 12,244,735 km (0.118 R)
• M14: 14,877,957 km (0.043 R)
• M15: 15,591,090 km (0.115 R)
• M16: 18,175,692 km (0.063 R)
• M17: 23,365,691 km (0.111 R)
• M18: 24,405,247 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.8

Radius: 14.1

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.43 AU - 5.23 AU

Year: 5911 Days

Day: 7.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,524,905 km

• M1: 175,329 km (0.051 R)
• M2: 728,691 km (0.115 R)
• M3: 1,189,752 km (0.109 R)
• M4: 1,667,268 km (0.087 R)
• M5: 3,028,758 km (0.114 R)
• M6: 3,683,399 km (0.084 R)
• M7: 4,335,346 km (0.119 R)
• M8: 5,726,756 km (0.113 R)
• M9: 6,510,051 km (0.12 R)
• M10: 9,784,748 km (0.108 R)
• M11: 11,730,717 km (0.099 R)
• M12: 14,620,350 km (0.061 R)
• M13: 15,172,366 km (0.097 R)
• M14: 16,259,493 km (0.085 R)
• M15: 16,732,522 km (0.059 R)
• M16: 17,397,933 km (0.11 R)
• M17: 18,018,166 km (0.061 R)
• M18: 18,911,116 km (0.08 R)
• M19: 22,928,417 km (0.06 R)
• M20: 23,749,859 km (0.117 R)
• M21: 25,293,559 km (0.098 R)
• M22: 27,901,200 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.6

Radius: 6.6

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 5.63 AU - 7.35 AU

Year: 10846 Days

Day: 16.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,524,905 km

• M1: 104,569 km (0.117 R)
• M2: 729,439 km (0.109 R)
• M3: 1,607,280 km (0.105 R)
• M4: 2,302,461 km (0.1 R)
• M5: 2,818,873 km (0.08 R)
• M6: 3,949,683 km (0.118 R)
• M7: 4,294,656 km (0.096 R)
• M8: 6,223,720 km (0.115 R)
• M9: 7,259,685 km (0.067 R)
• M10: 11,471,015 km (0.103 R)
• M11: 13,368,664 km (0.101 R)
• M12: 17,702,664 km (0.099 R)
• M13: 23,312,883 km (0.105 R)
• M14: 24,702,947 km (0.112 R)
• M15: 28,320,971 km (0.048 R)
• M16: 29,401,816 km (0.1 R)
• M17: 32,065,705 km (0.057 R)
• M18: 33,673,583 km (0.11 R)
• M19: 35,447,066 km (0.085 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: 514 - 19,953 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit