🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.4

Radius: 11.6

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.52 AU - 0.52 AU

Year: 250 Days

Day: 5.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 61,416,076 km

• M1: 147,803 km (0.093 R)
• M2: 571,913 km (0.025 R)
• M3: 1,113,906 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.3

Radius: 13.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.11 AU - 1.57 AU

Year: 1034 Days

Day: 13.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,416,076 km

• M1: 164,258 km (0.088 R)
• M2: 1,014,274 km (0.11 R)
• M3: 1,523,804 km (0.115 R)
• M4: 1,966,913 km (0.112 R)
• M5: 2,473,601 km (0.08 R)
• M6: 3,661,857 km (0.109 R)
• M7: 4,161,663 km (0.098 R)
• M8: 5,686,963 km (0.084 R)
• M9: 6,681,490 km (0.056 R)
• M10: 7,892,933 km (0.076 R)
• M11: 8,704,053 km (0.102 R)
• M12: 9,216,874 km (0.055 R)
• M13: 9,931,952 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.2

Radius: 13.7

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2 AU - 2.58 AU

Year: 2311 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,416,076 km

• M1: 170,392 km (0.104 R)
• M2: 692,339 km (0.106 R)
• M3: 1,383,032 km (0.092 R)
• M4: 2,034,232 km (0.095 R)
• M5: 2,496,040 km (0.071 R)
• M6: 3,563,122 km (0.085 R)
• M7: 4,180,961 km (0.118 R)
• M8: 4,624,669 km (0.057 R)
• M9: 5,099,791 km (0.051 R)
• M10: 6,897,060 km (0.1 R)
• M11: 7,338,224 km (0.056 R)
• M12: 8,507,781 km (0.086 R)
• M13: 8,981,557 km (0.075 R)
• M14: 9,871,515 km (0.109 R)
• M15: 11,579,922 km (0.116 R)
• M16: 15,575,532 km (0.07 R)
• M17: 16,030,010 km (0.113 R)
• M18: 18,269,640 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.4

Radius: 12.9

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.44 AU - 3.88 AU

Year: 3746 Days

Day: 13.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,416,076 km

• M1: 160,519 km (0.102 R)
• M2: 1,056,011 km (0.1 R)
• M3: 1,591,572 km (0.109 R)
• M4: 2,451,460 km (0.098 R)
• M5: 4,055,897 km (0.087 R)
• M6: 4,473,575 km (0.047 R)
• M7: 6,041,061 km (0.103 R)
• M8: 6,912,020 km (0.064 R)
• M9: 7,892,784 km (0.101 R)
• M10: 10,064,945 km (0.097 R)
• M11: 11,218,344 km (0.065 R)
• M12: 11,863,710 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.9

Radius: 12.1

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.43 AU - 3.59 AU

Year: 4385 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,416,076 km

• M1: 150,944 km (0.082 R)
• M2: 610,659 km (0.054 R)
• M3: 1,196,185 km (0.109 R)
• M4: 1,607,878 km (0.108 R)
• M5: 2,394,613 km (0.115 R)
• M6: 4,703,806 km (0.107 R)
• M7: 5,258,964 km (0.059 R)
• M8: 5,935,296 km (0.11 R)
• M9: 7,220,790 km (0.074 R)
• M10: 8,717,666 km (0.031 R)
• M11: 9,166,011 km (0.119 R)
• M12: 9,593,562 km (0.1 R)
• M13: 9,997,177 km (0.074 R)
• M14: 10,374,014 km (0.089 R)
• M15: 11,155,962 km (0.068 R)
• M16: 12,273,757 km (0.048 R)
• M17: 13,419,228 km (0.097 R)
• M18: 14,731,052 km (0.105 R)
• M19: 19,295,283 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.2

Radius: 9.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.52 AU - 4.84 AU

Year: 5699 Days

Day: 14.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,416,076 km

• M1: 151,692 km (0.059 R)
• M2: 715,975 km (0.101 R)
• M3: 1,053,468 km (0.119 R)
• M4: 1,667,567 km (0.113 R)
• M5: 2,199,089 km (0.084 R)
• M6: 2,824,408 km (0.092 R)
• M7: 3,417,414 km (0.067 R)
• M8: 4,194,425 km (0.087 R)
• M9: 6,397,403 km (0.092 R)
• M10: 7,954,867 km (0.078 R)
• M11: 8,925,907 km (0.052 R)
• M12: 9,677,187 km (0.066 R)
• M13: 10,087,085 km (0.07 R)
• M14: 10,981,980 km (0.096 R)
• M15: 11,760,337 km (0.112 R)
• M16: 13,153,842 km (0.098 R)
• M17: 15,852,288 km (0.064 R)
• M18: 20,196,909 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.5

Radius: 9

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.98 AU - 5.16 AU

Year: 6515 Days

Day: 6.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,416,076 km

• M1: 116,238 km (0.071 R)
• M2: 436,975 km (0.109 R)
• M3: 1,020,856 km (0.07 R)
• M4: 1,817,614 km (0.114 R)
• M5: 2,626,340 km (0.102 R)
• M6: 5,340,794 km (0.119 R)
• M7: 5,708,206 km (0.096 R)
• M8: 6,244,664 km (0.081 R)
• M9: 7,179,202 km (0.113 R)
• M10: 8,848,714 km (0.091 R)
• M11: 9,773,977 km (0.095 R)
• M12: 10,067,937 km (0.109 R)
• M13: 13,088,168 km (0.119 R)
• M14: 15,787,362 km (0.094 R)
• M15: 19,096,916 km (0.047 R)
• M16: 22,842,398 km (0.107 R)
• M17: 28,646,347 km (0.081 R)

Asteroid Belt

Center: 5.22 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 366.4

Radius: 6

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.27 AU - 6.45 AU

Year: 9460 Days

Day: 22 Hours

Environment

Temp: -234 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 61,416,076 km

• M1: 76,445 km (0.039 R)
• M2: 467,643 km (0.05 R)
• M3: 673,490 km (0.117 R)
• M4: 1,312,273 km (0.115 R)
• M5: 1,879,398 km (0.064 R)
• M6: 2,653,717 km (0.104 R)
• M7: 3,154,720 km (0.031 R)
• M8: 3,669,636 km (0.071 R)
• M9: 4,238,856 km (0.119 R)
• M10: 4,585,773 km (0.108 R)
• M11: 5,772,683 km (0.066 R)
• M12: 5,999,772 km (0.107 R)
• M13: 7,643,254 km (0.117 R)
• M14: 8,320,185 km (0.116 R)
• M15: 9,431,398 km (0.088 R)
• M16: 10,256,580 km (0.11 R)
• M17: 10,832,831 km (0.118 R)
• M18: 11,178,701 km (0.101 R)
• M19: 12,582,527 km (0.096 R)
• M20: 13,186,753 km (0.031 R)
• M21: 13,695,386 km (0.118 R)
• M22: 14,217,034 km (0.06 R)
• M23: 15,735,302 km (0.052 R)
• M24: 20,782,585 km (0.111 R)
• M25: 24,125,948 km (0.094 R)
• M26: 27,172,508 km (0.087 R)
• M27: 28,646,945 km (0.117 R)
• M28: 30,076,951 km (0.08 R)
• M29: 31,653,862 km (0.103 R)
• M30: 34,438,776 km (0.118 R)
• M31: 35,186,616 km (0.073 R)
• M32: 35,618,804 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.9

Radius: 7.8

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 6.31 AU - 8.45 AU

Year: 13369 Days

Day: 20.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,416,076 km

• M1: 290,818 km (0.106 R)
• M2: 583,880 km (0.12 R)
• M3: 2,792,992 km (0.07 R)
• M4: 3,160,105 km (0.088 R)
• M5: 3,744,285 km (0.112 R)
• M6: 5,894,754 km (0.032 R)
• M7: 7,315,336 km (0.078 R)
• M8: 8,427,596 km (0.067 R)
• M9: 9,097,495 km (0.11 R)
• M10: 9,395,345 km (0.098 R)
• M11: 10,115,509 km (0.115 R)
• M12: 11,151,175 km (0.114 R)
• M13: 18,257,672 km (0.076 R)
• M14: 19,541,072 km (0.092 R)
• M15: 26,366,176 km (0.049 R)
• M16: 34,266,589 km (0.11 R)
• M17: 36,090,337 km (0.109 R)
• M18: 43,051,724 km (0.113 R)
• M19: 46,625,617 km (0.097 R)
• M20: 53,709,226 km (0.04 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.1

Radius: 7.1

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 9.16 AU - 12.36 AU

Year: 23537 Days

Day: 15.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,416,076 km

• M1: 186,549 km (0.077 R)
• M2: 428,448 km (0.094 R)
• M3: 796,160 km (0.107 R)
• M4: 2,060,411 km (0.065 R)
• M5: 2,695,305 km (0.117 R)
• M6: 5,420,080 km (0.044 R)
• M7: 10,016,026 km (0.116 R)
• M8: 10,629,228 km (0.116 R)
• M9: 11,326,653 km (0.119 R)
• M10: 11,808,209 km (0.045 R)
• M11: 18,205,014 km (0.055 R)
• M12: 19,886,643 km (0.049 R)
• M13: 20,587,509 km (0.085 R)
• M14: 38,285,386 km (0.116 R)
• M15: 55,199,370 km (0.069 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 10,587 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit