🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 15

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.6 AU - 0.64 AU

Year: 337 Days

Day: 7.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,140,022 km

• M1: 186,549 km (0.069 R)
• M2: 788,530 km (0.072 R)
• M3: 1,390,063 km (0.111 R)
• M4: 1,957,787 km (0.104 R)
• M5: 2,484,521 km (0.089 R)
• M6: 3,313,892 km (0.115 R)
• M7: 3,806,817 km (0.076 R)
• M8: 4,653,391 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.5

Radius: 8.9

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.6 AU - 0.68 AU

Year: 353 Days

Day: 13.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,140,022 km

• M1: 113,246 km (0.051 R)
• M2: 428,149 km (0.056 R)
• M3: 784,491 km (0.106 R)
• M4: 1,203,216 km (0.099 R)
• M5: 1,711,848 km (0.07 R)
• M6: 2,411,667 km (0.117 R)
• M7: 3,261,682 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.2

Radius: 10.3

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.32 AU - 2.02 AU

Year: 1490 Days

Day: 11.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,140,022 km

• M1: 128,056 km (0.117 R)
• M2: 523,593 km (0.082 R)
• M3: 894,595 km (0.059 R)
• M4: 1,420,432 km (0.09 R)
• M5: 1,948,363 km (0.073 R)
• M6: 2,564,855 km (0.046 R)
• M7: 2,968,770 km (0.097 R)
• M8: 3,368,346 km (0.104 R)
• M9: 3,871,443 km (0.12 R)
• M10: 4,887,512 km (0.066 R)
• M11: 6,769,752 km (0.119 R)
• M12: 7,176,808 km (0.097 R)
• M13: 8,152,635 km (0.088 R)
• M14: 9,843,390 km (0.101 R)
• M15: 11,865,355 km (0.093 R)
• M16: 12,383,113 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.9

Radius: 9.1

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.46 AU - 4.28 AU

Year: 5255 Days

Day: 9.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,140,022 km

• M1: 113,246 km (0.063 R)
• M2: 436,377 km (0.057 R)
• M3: 1,794,875 km (0.102 R)
• M4: 2,341,805 km (0.088 R)
• M5: 2,938,850 km (0.084 R)
• M6: 4,091,502 km (0.114 R)
• M7: 4,613,150 km (0.078 R)
• M8: 5,262,703 km (0.117 R)
• M9: 5,910,612 km (0.116 R)
• M10: 7,258,937 km (0.055 R)
• M11: 8,761,498 km (0.105 R)
• M12: 10,148,869 km (0.111 R)
• M13: 10,642,393 km (0.108 R)
• M14: 11,970,971 km (0.119 R)
• M15: 12,269,419 km (0.11 R)
• M16: 12,572,953 km (0.102 R)
• M17: 14,001,014 km (0.043 R)
• M18: 15,126,589 km (0.09 R)
• M19: 15,534,392 km (0.089 R)
• M20: 16,433,176 km (0.11 R)
• M21: 18,137,545 km (0.087 R)
• M22: 18,465,613 km (0.092 R)
• M23: 19,887,092 km (0.096 R)
• M24: 20,376,876 km (0.117 R)
• M25: 21,453,232 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813

Radius: 14

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.98 AU - 6.06 AU

Year: 7764 Days

Day: 8.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,140,022 km

• M1: 175,927 km (0.077 R)
• M2: 756,965 km (0.102 R)
• M3: 1,248,095 km (0.087 R)
• M4: 3,052,545 km (0.106 R)
• M5: 4,925,360 km (0.091 R)
• M6: 6,108,380 km (0.085 R)
• M7: 6,972,009 km (0.075 R)
• M8: 8,809,669 km (0.096 R)
• M9: 9,722,814 km (0.08 R)
• M10: 11,524,422 km (0.083 R)
• M11: 12,226,933 km (0.109 R)
• M12: 12,900,572 km (0.036 R)
• M13: 13,837,055 km (0.106 R)
• M14: 17,126,862 km (0.094 R)
• M15: 17,686,358 km (0.03 R)
• M16: 18,186,015 km (0.038 R)
• M17: 20,669,788 km (0.056 R)
• M18: 24,061,022 km (0.102 R)
• M19: 24,763,534 km (0.11 R)
• M20: 27,711,210 km (0.025 R)
• M21: 30,070,369 km (0.105 R)
• M22: 33,637,530 km (0.044 R)
• M23: 38,303,188 km (0.091 R)
• M24: 40,358,364 km (0.11 R)
• M25: 40,976,502 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.1

Radius: 13.4

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.12 AU - 5.84 AU

Year: 8855 Days

Day: 11.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,140,022 km

• M1: 166,802 km (0.115 R)
• M2: 908,508 km (0.097 R)
• M3: 1,428,809 km (0.103 R)
• M4: 1,961,976 km (0.081 R)
• M5: 3,523,479 km (0.093 R)
• M6: 4,463,402 km (0.081 R)
• M7: 5,535,420 km (0.078 R)
• M8: 5,979,427 km (0.077 R)
• M9: 6,608,336 km (0.101 R)
• M10: 7,421,102 km (0.074 R)
• M11: 11,448,575 km (0.11 R)
• M12: 12,773,564 km (0.12 R)
• M13: 13,765,697 km (0.074 R)
• M14: 15,610,089 km (0.043 R)
• M15: 19,242,774 km (0.1 R)
• M16: 20,128,394 km (0.119 R)
• M17: 21,040,791 km (0.111 R)
• M18: 23,944,486 km (0.095 R)
• M19: 26,518,616 km (0.081 R)
• M20: 29,450,585 km (0.1 R)
• M21: 30,261,405 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721.7

Radius: 4.4

Gravity: 37.28 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.06 AU - 7.22 AU

Year: 11810 Days

Day: 22.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 86,140,022 km

• M1: 55,950 km (0.056 R)
• M2: 207,343 km (0.085 R)
• M3: 388,356 km (0.034 R)
• M4: 595,848 km (0.106 R)
• M5: 788,680 km (0.059 R)
• M6: 989,740 km (0.037 R)
• M7: 1,906,326 km (0.086 R)
• M8: 2,368,882 km (0.115 R)
• M9: 2,702,037 km (0.075 R)
• M10: 3,161,452 km (0.083 R)
• M11: 3,806,817 km (0.075 R)
• M12: 4,413,436 km (0.109 R)
• M13: 5,015,717 km (0.081 R)
• M14: 5,707,009 km (0.12 R)
• M15: 6,778,579 km (0.116 R)
• M16: 7,361,711 km (0.057 R)
• M17: 9,013,870 km (0.118 R)
• M18: 9,211,489 km (0.068 R)
• M19: 9,412,100 km (0.09 R)
• M20: 9,926,118 km (0.11 R)
• M21: 13,218,917 km (0.066 R)
• M22: 13,862,935 km (0.107 R)
• M23: 14,126,377 km (0.119 R)
• M24: 15,074,828 km (0.039 R)
• M25: 15,213,655 km (0.078 R)
• M26: 22,930,362 km (0.109 R)
• M27: 23,764,968 km (0.076 R)
• M28: 25,103,121 km (0.1 R)
• M29: 27,928,576 km (0.101 R)
• M30: 31,183,527 km (0.115 R)
• M31: 34,081,985 km (0.104 R)
• M32: 40,273,991 km (0.103 R)
• M33: 41,215,410 km (0.101 R)
• M34: 44,841,214 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.4

Radius: 6.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.49 AU - 8.05 AU

Year: 12159 Days

Day: 19.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,140,022 km

• M1: 115,190 km (0.096 R)
• M2: 478,264 km (0.116 R)
• M3: 831,166 km (0.08 R)
• M4: 1,233,135 km (0.106 R)
• M5: 1,655,450 km (0.107 R)
• M6: 1,978,282 km (0.113 R)
• M7: 2,575,327 km (0.114 R)
• M8: 3,493,858 km (0.078 R)
• M9: 5,340,644 km (0.105 R)
• M10: 5,569,978 km (0.05 R)
• M11: 5,835,663 km (0.046 R)
• M12: 6,329,187 km (0.071 R)
• M13: 6,783,515 km (0.116 R)
• M14: 7,541,079 km (0.094 R)
• M15: 8,702,407 km (0.1 R)
• M16: 9,305,287 km (0.093 R)
• M17: 9,554,068 km (0.045 R)
• M18: 10,593,923 km (0.09 R)
• M19: 11,564,065 km (0.116 R)
• M20: 14,110,071 km (0.087 R)
• M21: 15,513,449 km (0.112 R)
• M22: 16,823,178 km (0.114 R)
• M23: 18,012,332 km (0.099 R)
• M24: 18,725,913 km (0.072 R)
• M25: 20,767,476 km (0.057 R)
• M26: 22,727,806 km (0.1 R)
• M27: 26,181,572 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.8

Radius: 6.6

Gravity: 16.55 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.61 AU - 12.39 AU

Year: 23485 Days

Day: 15.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,140,022 km

• M1: 104,569 km (0.041 R)
• M2: 691,142 km (0.061 R)
• M3: 1,049,279 km (0.099 R)
• M4: 2,032,586 km (0.104 R)
• M5: 2,596,570 km (0.087 R)
• M6: 3,932,180 km (0.07 R)
• M7: 4,512,171 km (0.108 R)
• M8: 5,714,639 km (0.057 R)
• M9: 6,232,995 km (0.083 R)
• M10: 6,641,846 km (0.11 R)
• M11: 8,295,800 km (0.11 R)
• M12: 9,960,825 km (0.101 R)
• M13: 12,322,676 km (0.04 R)
• M14: 28,475,955 km (0.045 R)
• M15: 42,351,008 km (0.095 R)
• M16: 44,641,351 km (0.095 R)
• M17: 48,054,426 km (0.042 R)
• M18: 50,003,687 km (0.091 R)
• M19: 56,947,122 km (0.064 R)
• M20: 77,416,449 km (0.051 R)
• M21: 79,600,578 km (0.105 R)
• M22: 82,074,927 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 13,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit