🌌 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 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.61 AU - 0.63 AU

Year: 320 Days

Day: 27.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,322,558 km

• M1: 40,242 km (0.039 R)
• M2: 83,027 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.1

Radius: 11.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.6 AU - 0.9 AU

Year: 426 Days

Day: 10.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,322,558 km

• M1: 140,472 km (0.111 R)
• M2: 512,373 km (0.083 R)
• M3: 880,084 km (0.102 R)
• M4: 1,346,082 km (0.106 R)
• M5: 1,821,055 km (0.113 R)
• M6: 2,354,970 km (0.05 R)
• M7: 2,735,397 km (0.114 R)
• M8: 3,763,134 km (0.045 R)
• M9: 4,260,996 km (0.093 R)
• M10: 4,635,440 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.9

Radius: 9.3

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.89 AU - 1.33 AU

Year: 767 Days

Day: 5.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,322,558 km

• M1: 115,639 km (0.029 R)
• M2: 698,921 km (0.105 R)
• M3: 1,165,367 km (0.109 R)
• M4: 1,538,614 km (0.096 R)
• M5: 1,914,254 km (0.032 R)
• M6: 2,207,616 km (0.064 R)
• M7: 2,863,902 km (0.047 R)
• M8: 3,299,680 km (0.115 R)
• M9: 3,684,895 km (0.081 R)
• M10: 5,589,126 km (0.086 R)
• M11: 6,387,679 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.4

Radius: 13.5

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.16 AU - 1.52 AU

Year: 1018 Days

Day: 11.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,322,558 km

• M1: 167,849 km (0.053 R)
• M2: 591,510 km (0.116 R)
• M3: 2,023,910 km (0.079 R)
• M4: 2,521,771 km (0.098 R)
• M5: 3,267,068 km (0.088 R)
• M6: 3,816,391 km (0.039 R)
• M7: 4,272,665 km (0.117 R)
• M8: 4,820,492 km (0.097 R)
• M9: 5,276,466 km (0.085 R)
• M10: 5,824,144 km (0.1 R)
• M11: 6,499,579 km (0.097 R)
• M12: 7,129,984 km (0.1 R)
• M13: 8,138,723 km (0.111 R)
• M14: 10,691,161 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.4

Radius: 14.2

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.38 AU - 1.76 AU

Year: 1291 Days

Day: 7.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,322,558 km

• M1: 176,675 km (0.106 R)
• M2: 634,594 km (0.065 R)
• M3: 1,089,970 km (0.109 R)
• M4: 1,608,476 km (0.12 R)
• M5: 2,131,470 km (0.06 R)
• M6: 2,730,460 km (0.097 R)
• M7: 3,209,772 km (0.065 R)
• M8: 3,714,366 km (0.06 R)
• M9: 4,904,267 km (0.115 R)
• M10: 5,702,820 km (0.094 R)
• M11: 6,517,381 km (0.109 R)
• M12: 7,135,220 km (0.089 R)
• M13: 7,765,925 km (0.086 R)
• M14: 9,402,974 km (0.078 R)
• M15: 10,604,993 km (0.09 R)
• M16: 11,160,001 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55.7

Radius: 4.7

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.08 AU - 8.44 AU

Year: 11530 Days

Day: 25 Hours

Environment

Temp: -215 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,322,558 km

• M1: 58,642 km (0.057 R)
• M2: 284,834 km (0.029 R)
• M3: 431,739 km (0.118 R)
• M4: 704,606 km (0.026 R)
• M5: 3,354,134 km (0.081 R)
• M6: 3,624,906 km (0.107 R)
• M7: 5,618,746 km (0.104 R)
• M8: 6,056,919 km (0.119 R)
• M9: 7,971,173 km (0.068 R)
• M10: 8,809,519 km (0.108 R)
• M11: 9,628,269 km (0.106 R)
• M12: 11,373,029 km (0.105 R)
• M13: 12,342,273 km (0.059 R)
• M14: 14,696,794 km (0.089 R)
• M15: 15,055,979 km (0.066 R)
• M16: 15,685,187 km (0.078 R)
• M17: 16,114,234 km (0.112 R)
• M18: 17,505,644 km (0.115 R)
• M19: 17,967,303 km (0.06 R)
• M20: 19,339,714 km (0.078 R)
• M21: 21,625,719 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 102.7

Radius: 7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.86 AU - 7.26 AU

Year: 12306 Days

Day: 24 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,322,558 km

• M1: 87,066 km (0.057 R)
• M2: 338,241 km (0.071 R)
• M3: 1,222,813 km (0.1 R)
• M4: 1,737,878 km (0.088 R)
• M5: 2,023,760 km (0.065 R)
• M6: 2,262,518 km (0.059 R)
• M7: 3,454,514 km (0.062 R)
• M8: 6,105,388 km (0.102 R)
• M9: 7,342,413 km (0.071 R)
• M10: 9,173,641 km (0.088 R)
• M11: 11,569,151 km (0.081 R)
• M12: 13,763,453 km (0.095 R)
• M13: 15,466,625 km (0.116 R)
• M14: 17,991,687 km (0.032 R)
• M15: 20,848,857 km (0.05 R)
• M16: 21,129,054 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.5

Radius: 7.6

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.85 AU - 9.11 AU

Year: 16200 Days

Day: 19.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,322,558 km

• M1: 98,286 km (0.104 R)
• M2: 362,775 km (0.118 R)
• M3: 4,287,026 km (0.098 R)
• M4: 5,978,380 km (0.078 R)
• M5: 7,700,102 km (0.082 R)
• M6: 9,600,144 km (0.112 R)
• M7: 13,913,649 km (0.082 R)
• M8: 17,456,875 km (0.082 R)
• M9: 23,134,712 km (0.091 R)
• M10: 23,520,824 km (0.068 R)
• M11: 25,845,725 km (0.103 R)
• M12: 27,021,115 km (0.054 R)
• M13: 27,277,676 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547.8

Radius: 3.1

Gravity: 57 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 8.04 AU - 12.5 AU

Year: 21591 Days

Day: 23.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,322,558 km

• M1: 38,596 km (0.109 R)
• M2: 397,033 km (0.117 R)
• M3: 756,367 km (0.049 R)
• M4: 1,130,960 km (0.104 R)
• M5: 1,329,177 km (0.094 R)
• M6: 1,704,369 km (0.091 R)
• M7: 2,338,364 km (0.114 R)
• M8: 2,635,914 km (0.12 R)
• M9: 3,740,545 km (0.075 R)
• M10: 4,445,002 km (0.073 R)
• M11: 4,651,596 km (0.119 R)
• M12: 5,903,581 km (0.072 R)
• M13: 6,280,418 km (0.036 R)
• M14: 7,849,849 km (0.043 R)
• M15: 9,548,682 km (0.079 R)
• M16: 10,126,130 km (0.026 R)
• M17: 10,911,070 km (0.116 R)
• M18: 12,532,861 km (0.091 R)
• M19: 13,579,298 km (0.096 R)
• M20: 13,940,726 km (0.098 R)
• M21: 14,382,788 km (0.095 R)
• M22: 15,923,945 km (0.076 R)
• M23: 16,164,200 km (0.093 R)
• M24: 22,581,051 km (0.047 R)
• M25: 26,513,380 km (0.072 R)
• M26: 29,775,661 km (0.118 R)
• M27: 30,754,480 km (0.113 R)
• M28: 31,251,893 km (0.11 R)
• M29: 36,109,934 km (0.069 R)
• M30: 37,645,706 km (0.04 R)
• M31: 45,819,434 km (0.111 R)
• M32: 49,973,917 km (0.069 R)
• M33: 55,281,948 km (0.038 R)
• M34: 56,758,180 km (0.059 R)
• M35: 57,506,169 km (0.028 R)
• M36: 62,132,334 km (0.115 R)
• M37: 64,535,624 km (0.066 R)
• M38: 72,116,197 km (0.113 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 16,955 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit