🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.9

Radius: 10.3

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.47 AU - 0.61 AU

Year: 265 Days

Day: 12.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,955,727 km

• M1: 128,056 km (0.09 R)
• M2: 460,313 km (0.104 R)
• M3: 795,861 km (0.03 R)
• M4: 1,414,747 km (0.115 R)
• M5: 1,748,650 km (0.074 R)
• M6: 2,202,081 km (0.068 R)
• M7: 2,874,224 km (0.072 R)
• M8: 3,387,943 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.8

Radius: 14.6

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.68 AU - 0.8 AU

Year: 424 Days

Day: 5.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,955,727 km

• M1: 181,612 km (0.098 R)
• M2: 819,198 km (0.096 R)
• M3: 1,398,740 km (0.064 R)
• M4: 2,177,995 km (0.112 R)
• M5: 2,731,059 km (0.095 R)
• M6: 3,678,761 km (0.056 R)
• M7: 4,309,466 km (0.109 R)
• M8: 5,267,341 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613

Radius: 12.7

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.96 AU - 1.12 AU

Year: 707 Days

Day: 10.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,955,727 km

• M1: 158,125 km (0.11 R)
• M2: 687,552 km (0.045 R)
• M3: 1,131,409 km (0.084 R)
• M4: 2,424,383 km (0.057 R)
• M5: 2,870,634 km (0.047 R)
• M6: 3,542,926 km (0.04 R)
• M7: 4,018,498 km (0.084 R)
• M8: 4,426,451 km (0.115 R)
• M9: 5,030,827 km (0.087 R)
• M10: 5,782,855 km (0.075 R)
• M11: 6,712,008 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.1

Radius: 14.2

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.1 AU - 2.52 AU

Year: 2341 Days

Day: 10.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,955,727 km

• M1: 177,273 km (0.032 R)
• M2: 938,577 km (0.034 R)
• M3: 1,961,228 km (0.093 R)
• M4: 2,439,343 km (0.047 R)
• M5: 3,755,505 km (0.102 R)
• M6: 4,464,599 km (0.105 R)
• M7: 5,111,759 km (0.119 R)
• M8: 6,151,764 km (0.103 R)
• M9: 7,799,285 km (0.103 R)
• M10: 8,261,243 km (0.1 R)
• M11: 8,957,322 km (0.066 R)
• M12: 9,399,833 km (0.112 R)
• M13: 9,857,153 km (0.117 R)
• M14: 10,432,507 km (0.063 R)
• M15: 10,994,247 km (0.093 R)
• M16: 11,762,282 km (0.108 R)
• M17: 12,294,103 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.3

Radius: 13.7

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.07 AU - 3.31 AU

Year: 2942 Days

Day: 8.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,955,727 km

• M1: 170,542 km (0.03 R)
• M2: 732,581 km (0.067 R)
• M3: 1,302,100 km (0.059 R)
• M4: 1,737,130 km (0.077 R)
• M5: 2,494,096 km (0.087 R)
• M6: 3,569,256 km (0.105 R)
• M7: 4,460,261 km (0.081 R)
• M8: 4,967,248 km (0.108 R)
• M9: 5,847,781 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.2

Radius: 11.7

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.39 AU - 3.79 AU

Year: 4536 Days

Day: 10.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 151.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,955,727 km

• M1: 145,559 km (0.114 R)
• M2: 581,936 km (0.111 R)
• M3: 959,222 km (0.079 R)
• M4: 1,465,610 km (0.114 R)
• M5: 2,547,053 km (0.081 R)
• M6: 2,996,296 km (0.101 R)
• M7: 5,838,057 km (0.077 R)
• M8: 7,415,866 km (0.029 R)
• M9: 8,627,160 km (0.026 R)
• M10: 9,109,164 km (0.118 R)
• M11: 11,975,908 km (0.092 R)
• M12: 13,490,586 km (0.066 R)
• M13: 15,504,623 km (0.098 R)
• M14: 16,274,304 km (0.092 R)
• M15: 17,593,906 km (0.092 R)
• M16: 18,129,168 km (0.031 R)
• M17: 18,614,014 km (0.096 R)
• M18: 19,736,896 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.8

Radius: 10

Gravity: 9.81 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.52 AU - 5.52 AU

Year: 8648 Days

Day: 14.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 30,955,727 km

• M1: 124,316 km (0.062 R)
• M2: 470,635 km (0.104 R)
• M3: 783,743 km (0.081 R)
• M4: 2,046,948 km (0.088 R)
• M5: 3,495,653 km (0.1 R)
• M6: 4,291,215 km (0.049 R)
• M7: 4,611,654 km (0.081 R)
• M8: 5,268,089 km (0.03 R)
• M9: 6,805,806 km (0.104 R)
• M10: 8,807,275 km (0.086 R)
• M11: 9,135,643 km (0.113 R)
• M12: 9,767,544 km (0.065 R)
• M13: 11,839,026 km (0.064 R)
• M14: 12,590,157 km (0.075 R)
• M15: 15,846,902 km (0.112 R)
• M16: 17,929,604 km (0.063 R)
• M17: 20,350,846 km (0.101 R)
• M18: 22,109,967 km (0.11 R)
• M19: 23,516,636 km (0.109 R)
• M20: 23,877,466 km (0.12 R)
• M21: 26,216,877 km (0.033 R)
• M22: 28,602,514 km (0.088 R)
• M23: 31,564,552 km (0.072 R)
• M24: 32,670,230 km (0.12 R)
• M25: 42,196,473 km (0.073 R)
• M26: 43,132,357 km (0.116 R)
• M27: 44,082,005 km (0.032 R)
• M28: 45,602,517 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.6

Radius: 6.4

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.16 AU - 10.66 AU

Year: 17736 Days

Day: 20.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,955,727 km

• M1: 84,822 km (0.065 R)
• M2: 491,728 km (0.09 R)
• M3: 892,800 km (0.101 R)
• M4: 1,171,202 km (0.103 R)
• M5: 1,470,547 km (0.064 R)
• M6: 2,067,592 km (0.1 R)
• M7: 2,542,266 km (0.104 R)
• M8: 3,229,519 km (0.075 R)
• M9: 4,457,568 km (0.118 R)
• M10: 4,937,627 km (0.119 R)
• M11: 8,098,481 km (0.063 R)
• M12: 8,371,347 km (0.101 R)
• M13: 10,229,652 km (0.114 R)
• M14: 14,739,579 km (0.107 R)
• M15: 15,801,724 km (0.089 R)
• M16: 19,921,649 km (0.09 R)
• M17: 20,419,511 km (0.061 R)
• M18: 21,887,515 km (0.08 R)
• M19: 27,579,265 km (0.071 R)
• M20: 31,909,076 km (0.106 R)
• M21: 33,082,971 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.7

Radius: 4.9

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.13 AU - 11.83 AU

Year: 19464 Days

Day: 24.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,955,727 km

• M1: 61,186 km (0.086 R)
• M2: 963,560 km (0.106 R)
• M3: 1,936,245 km (0.108 R)
• M4: 2,128,479 km (0.099 R)
• M5: 2,349,883 km (0.096 R)
• M6: 4,159,120 km (0.062 R)
• M7: 4,405,059 km (0.094 R)
• M8: 5,873,212 km (0.116 R)
• M9: 9,991,043 km (0.102 R)
• M10: 11,025,363 km (0.092 R)
• M11: 22,583,295 km (0.084 R)
• M12: 25,152,638 km (0.065 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 19,745 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit