🌌 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: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.9

Radius: 11.9

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.58 AU - 0.78 AU

Year: 387 Days

Day: 11.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,666,495 km

• M1: 147,952 km (0.095 R)
• M2: 725,998 km (0.114 R)
• M3: 1,104,930 km (0.102 R)
• M4: 1,486,105 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.3

Radius: 12.4

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.83 AU - 0.85 AU

Year: 531 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 97.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,666,495 km

• M1: 154,235 km (0.104 R)
• M2: 568,173 km (0.092 R)
• M3: 986,448 km (0.087 R)
• M4: 1,444,068 km (0.112 R)
• M5: 2,270,447 km (0.089 R)
• M6: 3,378,369 km (0.06 R)
• M7: 3,873,687 km (0.108 R)
• M8: 4,313,355 km (0.077 R)
• M9: 4,739,111 km (0.111 R)
• M10: 5,142,876 km (0.104 R)
• M11: 5,837,309 km (0.077 R)
• M12: 6,417,599 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.8

Radius: 13.8

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.94 AU - 1.22 AU

Year: 775 Days

Day: 8 Hours

Environment

Temp: -175 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,666,495 km

• M1: 171,738 km (0.086 R)
• M2: 660,325 km (0.058 R)
• M3: 1,097,600 km (0.088 R)
• M4: 1,650,962 km (0.06 R)
• M5: 2,121,298 km (0.081 R)
• M6: 2,606,593 km (0.116 R)
• M7: 3,650,487 km (0.109 R)
• M8: 4,558,995 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.3

Radius: 10.9

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.67 AU - 2.07 AU

Year: 1765 Days

Day: 5.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,666,495 km

• M1: 143,016 km (0.11 R)
• M2: 577,298 km (0.097 R)
• M3: 927,357 km (0.066 R)
• M4: 1,380,340 km (0.116 R)
• M5: 2,008,950 km (0.085 R)
• M6: 2,351,679 km (0.077 R)
• M7: 2,985,525 km (0.12 R)
• M8: 3,806,069 km (0.051 R)
• M9: 4,506,935 km (0.083 R)
• M10: 4,861,183 km (0.063 R)
• M11: 9,308,578 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.1

Radius: 13.1

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.89 AU - 3.07 AU

Year: 2696 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,666,495 km

• M1: 162,912 km (0.105 R)
• M2: 650,751 km (0.091 R)
• M3: 1,077,254 km (0.109 R)
• M4: 1,643,931 km (0.08 R)
• M5: 2,524,763 km (0.063 R)
• M6: 3,124,950 km (0.097 R)
• M7: 4,235,565 km (0.12 R)
• M8: 4,659,674 km (0.082 R)
• M9: 5,779,265 km (0.041 R)
• M10: 6,218,035 km (0.083 R)
• M11: 7,287,810 km (0.112 R)
• M12: 8,442,107 km (0.07 R)
• M13: 11,069,644 km (0.081 R)
• M14: 12,820,986 km (0.067 R)
• M15: 13,714,834 km (0.1 R)
• M16: 14,953,504 km (0.106 R)
• M17: 16,811,360 km (0.103 R)
• M18: 18,113,310 km (0.12 R)
• M19: 19,057,871 km (0.095 R)
• M20: 19,542,269 km (0.109 R)
• M21: 20,662,458 km (0.058 R)
• M22: 21,628,262 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.4

Radius: 12.8

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.33 AU - 3.43 AU

Year: 4289 Days

Day: 10.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,666,495 km

• M1: 159,322 km (0.115 R)
• M2: 565,929 km (0.062 R)
• M3: 1,046,437 km (0.074 R)
• M4: 1,479,074 km (0.094 R)
• M5: 2,060,112 km (0.082 R)
• M6: 2,534,637 km (0.105 R)
• M7: 3,356,527 km (0.052 R)
• M8: 4,040,938 km (0.053 R)
• M9: 4,439,915 km (0.084 R)
• M10: 5,771,486 km (0.072 R)
• M11: 6,848,441 km (0.113 R)
• M12: 8,618,782 km (0.095 R)
• M13: 9,591,019 km (0.098 R)
• M14: 11,620,763 km (0.041 R)
• M15: 14,022,407 km (0.057 R)
• M16: 14,891,870 km (0.061 R)
• M17: 17,599,441 km (0.067 R)
• M18: 18,249,743 km (0.097 R)
• M19: 20,881,020 km (0.108 R)
• M20: 21,811,818 km (0.108 R)
• M21: 22,631,315 km (0.094 R)
• M22: 23,400,548 km (0.045 R)
• M23: 23,827,350 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471.3

Radius: 7.4

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.03 AU - 6.47 AU

Year: 9517 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,666,495 km

• M1: 92,152 km (0.1 R)
• M2: 334,202 km (0.079 R)
• M3: 761,453 km (0.108 R)
• M4: 1,037,760 km (0.079 R)
• M5: 1,455,886 km (0.045 R)
• M6: 2,280,919 km (0.066 R)
• M7: 3,032,947 km (0.062 R)
• M8: 3,385,549 km (0.072 R)
• M9: 3,619,520 km (0.108 R)
• M10: 4,553,610 km (0.081 R)
• M11: 5,106,972 km (0.058 R)
• M12: 5,671,854 km (0.117 R)
• M13: 6,139,347 km (0.106 R)
• M14: 6,925,783 km (0.113 R)
• M15: 7,777,444 km (0.063 R)
• M16: 8,827,920 km (0.11 R)
• M17: 9,687,210 km (0.05 R)
• M18: 11,783,226 km (0.083 R)
• M19: 12,711,481 km (0.091 R)
• M20: 17,119,980 km (0.093 R)
• M21: 24,218,100 km (0.085 R)
• M22: 24,739,449 km (0.115 R)
• M23: 26,715,038 km (0.075 R)
• M24: 27,085,293 km (0.12 R)
• M25: 27,552,786 km (0.038 R)
• M26: 35,896,458 km (0.083 R)
• M27: 36,916,117 km (0.072 R)
• M28: 39,131,961 km (0.112 R)
• M29: 40,576,328 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.3

Radius: 6.7

Gravity: 14.04 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.31 AU - 10.51 AU

Year: 23184 Days

Day: 15.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,666,495 km

• M1: 84,822 km (0.081 R)
• M2: 405,111 km (0.098 R)
• M3: 1,075,908 km (0.1 R)
• M4: 1,342,790 km (0.098 R)
• M5: 2,242,322 km (0.102 R)
• M6: 3,521,534 km (0.117 R)
• M7: 3,889,694 km (0.101 R)
• M8: 7,567,259 km (0.07 R)
• M9: 11,687,483 km (0.101 R)
• M10: 16,753,765 km (0.08 R)
• M11: 18,967,813 km (0.097 R)
• M12: 27,708,069 km (0.11 R)
• M13: 35,194,245 km (0.116 R)
• M14: 42,800,848 km (0.103 R)
• M15: 49,481,590 km (0.113 R)
• M16: 52,155,951 km (0.103 R)
• M17: 63,818,601 km (0.094 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 13,298 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit