🌌 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: 682.4

Radius: 13.2

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.47 AU - 0.61 AU

Year: 265 Days

Day: 14.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 74,485,375 km

• M1: 164,109 km (0.107 R)
• M2: 732,132 km (0.115 R)
• M3: 1,181,225 km (0.105 R)
• M4: 1,786,947 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.6

Radius: 8

Gravity: 14.67 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.48 AU - 0.6 AU

Year: 265 Days

Day: 5 Hours

Environment

Temp: -149 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,485,375 km

• M1: 99,483 km (0.103 R)
• M2: 367,712 km (0.118 R)
• M3: 617,690 km (0.108 R)
• M4: 907,909 km (0.12 R)
• M5: 1,335,610 km (0.109 R)
• M6: 1,982,471 km (0.071 R)
• M7: 2,364,095 km (0.076 R)
• M8: 3,428,634 km (0.1 R)
• M9: 3,810,108 km (0.1 R)
• M10: 4,415,531 km (0.05 R)
• M11: 4,699,916 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.2

Radius: 8.6

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.47 AU - 0.77 AU

Year: 326 Days

Day: 6.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,485,375 km

• M1: 107,411 km (0.078 R)
• M2: 445,353 km (0.059 R)
• M3: 715,078 km (0.119 R)
• M4: 1,036,264 km (0.081 R)
• M5: 1,359,097 km (0.041 R)
• M6: 1,653,206 km (0.113 R)
• M7: 2,245,464 km (0.111 R)
• M8: 2,932,268 km (0.096 R)
• M9: 3,363,259 km (0.118 R)
• M10: 3,884,458 km (0.117 R)
• M11: 4,196,669 km (0.088 R)
• M12: 4,634,542 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453

Radius: 13.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.54 AU - 0.78 AU

Year: 358 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,485,375 km

• M1: 175,628 km (0.072 R)
• M2: 843,283 km (0.119 R)
• M3: 1,536,819 km (0.079 R)
• M4: 2,260,573 km (0.07 R)
• M5: 2,771,301 km (0.088 R)
• M6: 3,423,248 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.1

Radius: 10.2

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.83 AU - 0.87 AU

Year: 523 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,485,375 km

• M1: 126,859 km (0.066 R)
• M2: 461,958 km (0.095 R)
• M3: 875,596 km (0.115 R)
• M4: 1,194,240 km (0.098 R)
• M5: 1,585,588 km (0.083 R)
• M6: 2,486,317 km (0.063 R)
• M7: 2,818,125 km (0.076 R)
• M8: 3,179,703 km (0.052 R)
• M9: 3,684,895 km (0.076 R)
• M10: 4,132,492 km (0.114 R)
• M11: 4,810,768 km (0.105 R)
• M12: 5,511,485 km (0.079 R)
• M13: 5,939,035 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.2

Radius: 14.4

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1 AU - 1.18 AU

Year: 759 Days

Day: 13.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,485,375 km

• M1: 190,438 km (0.065 R)
• M2: 655,388 km (0.06 R)
• M3: 1,340,547 km (0.095 R)
• M4: 1,823,448 km (0.115 R)
• M5: 2,517,732 km (0.106 R)
• M6: 2,999,138 km (0.101 R)
• M7: 4,032,710 km (0.089 R)
• M8: 5,399,286 km (0.107 R)
• M9: 6,209,209 km (0.061 R)
• M10: 7,362,010 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.3

Radius: 6.5

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.27 AU - 9.39 AU

Year: 14611 Days

Day: 16.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,485,375 km

• M1: 80,783 km (0.055 R)
• M2: 298,448 km (0.097 R)
• M3: 653,443 km (0.096 R)
• M4: 1,126,322 km (0.101 R)
• M5: 1,388,418 km (0.075 R)
• M6: 2,375,913 km (0.075 R)
• M7: 3,275,894 km (0.109 R)
• M8: 5,220,367 km (0.117 R)
• M9: 5,499,966 km (0.041 R)
• M10: 6,720,236 km (0.062 R)
• M11: 7,746,926 km (0.075 R)
• M12: 9,050,073 km (0.071 R)
• M13: 10,789,148 km (0.083 R)
• M14: 12,137,025 km (0.106 R)
• M15: 15,991,115 km (0.1 R)
• M16: 16,983,846 km (0.062 R)
• M17: 17,876,946 km (0.066 R)
• M18: 18,157,890 km (0.099 R)
• M19: 19,458,943 km (0.079 R)
• M20: 24,761,739 km (0.119 R)
• M21: 25,111,050 km (0.119 R)
• M22: 25,375,090 km (0.092 R)
• M23: 25,641,075 km (0.068 R)
• M24: 30,451,544 km (0.093 R)
• M25: 38,919,532 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 107.8

Radius: 4.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.51 AU - 10.67 AU

Year: 16789 Days

Day: 17.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,485,375 km

• M1: 60,886 km (0.118 R)
• M2: 259,852 km (0.073 R)
• M3: 510,727 km (0.054 R)
• M4: 1,016,966 km (0.079 R)
• M5: 1,821,055 km (0.075 R)
• M6: 2,431,863 km (0.11 R)
• M7: 2,631,875 km (0.085 R)
• M8: 2,882,302 km (0.102 R)
• M9: 3,408,737 km (0.111 R)
• M10: 6,199,186 km (0.117 R)
• M11: 14,729,855 km (0.063 R)
• M12: 17,048,772 km (0.101 R)
• M13: 28,478,947 km (0.114 R)
• M14: 30,179,874 km (0.061 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.3

Radius: 3.8

Gravity: 49.61 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.17 AU - 10.45 AU

Year: 18943 Days

Day: 20.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 142.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,485,375 km

• M1: 47,572 km (0.08 R)
• M2: 214,673 km (0.096 R)
• M3: 413,040 km (0.028 R)
• M4: 850,763 km (0.103 R)
• M5: 1,168,958 km (0.079 R)
• M6: 1,296,116 km (0.118 R)
• M7: 1,595,312 km (0.107 R)
• M8: 3,377,471 km (0.087 R)
• M9: 4,067,716 km (0.113 R)
• M10: 4,395,335 km (0.054 R)
• M11: 5,215,281 km (0.099 R)
• M12: 5,483,809 km (0.11 R)
• M13: 6,475,045 km (0.042 R)
• M14: 6,695,701 km (0.088 R)
• M15: 6,830,489 km (0.108 R)
• M16: 11,510,060 km (0.117 R)
• M17: 15,180,294 km (0.089 R)
• M18: 19,106,939 km (0.084 R)
• M19: 19,744,226 km (0.084 R)
• M20: 22,136,147 km (0.11 R)
• M21: 32,982,441 km (0.114 R)
• M22: 36,748,119 km (0.053 R)
• M23: 42,150,098 km (0.111 R)
• M24: 43,539,712 km (0.106 R)
• M25: 47,891,215 km (0.108 R)
• M26: 55,222,109 km (0.075 R)
• M27: 57,071,438 km (0.047 R)
• M28: 63,667,358 km (0.097 R)
• M29: 63,868,567 km (0.077 R)
• M30: 65,289,896 km (0.065 R)
• M31: 65,494,546 km (0.09 R)
• M32: 67,147,902 km (0.063 R)
• M33: 73,595,720 km (0.09 R)
• M34: 73,817,424 km (0.095 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 14,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit