🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.53 AU - 0.73 AU

Year: 328 Days

Day: 43.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.5

Radius: 10

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.93 AU - 1.15 AU

Year: 696 Days

Day: 7.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,739,378 km

• M1: 124,465 km (0.071 R)
• M2: 470,784 km (0.119 R)
• M3: 1,158,636 km (0.059 R)
• M4: 1,606,083 km (0.119 R)
• M5: 2,078,363 km (0.037 R)
• M6: 2,509,055 km (0.107 R)
• M7: 2,990,162 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563

Radius: 12.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.41 AU - 1.73 AU

Year: 1291 Days

Day: 12.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,739,378 km

• M1: 157,527 km (0.097 R)
• M2: 631,004 km (0.098 R)
• M3: 1,171,351 km (0.079 R)
• M4: 1,568,234 km (0.062 R)
• M5: 2,227,064 km (0.06 R)
• M6: 3,391,533 km (0.05 R)
• M7: 3,821,926 km (0.098 R)
• M8: 4,888,260 km (0.118 R)
• M9: 5,710,151 km (0.059 R)
• M10: 7,968,480 km (0.115 R)
• M11: 8,734,720 km (0.081 R)
• M12: 9,549,580 km (0.119 R)
• M13: 10,735,742 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.3

Radius: 8.8

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.53 AU - 2.31 AU

Year: 1745 Days

Day: 8.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,739,378 km

• M1: 110,254 km (0.112 R)
• M2: 392,694 km (0.116 R)
• M3: 795,861 km (0.1 R)
• M4: 1,258,866 km (0.092 R)
• M5: 1,585,438 km (0.106 R)
• M6: 1,862,194 km (0.119 R)
• M7: 3,220,244 km (0.08 R)
• M8: 3,602,616 km (0.052 R)
• M9: 4,307,671 km (0.056 R)
• M10: 5,038,755 km (0.102 R)
• M11: 5,966,412 km (0.041 R)
• M12: 6,251,246 km (0.079 R)
• M13: 7,294,093 km (0.118 R)
• M14: 7,592,690 km (0.11 R)
• M15: 8,041,484 km (0.062 R)
• M16: 8,627,459 km (0.055 R)
• M17: 9,116,345 km (0.078 R)
• M18: 9,559,304 km (0.104 R)
• M19: 10,049,686 km (0.094 R)
• M20: 11,512,304 km (0.071 R)
• M21: 12,563,080 km (0.084 R)
• M22: 13,392,151 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.8

Radius: 11.2

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.19 AU - 3.53 AU

Year: 3173 Days

Day: 15 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,739,378 km

• M1: 150,645 km (0.058 R)
• M2: 513,719 km (0.03 R)
• M3: 862,133 km (0.104 R)
• M4: 1,238,670 km (0.118 R)
• M5: 2,083,150 km (0.113 R)
• M6: 2,609,436 km (0.042 R)
• M7: 3,829,406 km (0.101 R)
• M8: 4,181,560 km (0.05 R)
• M9: 4,856,545 km (0.072 R)
• M10: 5,295,465 km (0.107 R)
• M11: 6,281,465 km (0.113 R)
• M12: 7,167,533 km (0.059 R)
• M13: 8,034,303 km (0.059 R)
• M14: 9,708,303 km (0.094 R)
• M15: 12,889,502 km (0.105 R)
• M16: 13,401,276 km (0.095 R)
• M17: 14,515,332 km (0.068 R)
• M18: 15,018,429 km (0.107 R)
• M19: 16,489,575 km (0.112 R)
• M20: 16,982,350 km (0.045 R)
• M21: 17,882,481 km (0.106 R)
• M22: 18,578,111 km (0.119 R)
• M23: 19,962,041 km (0.094 R)
• M24: 22,000,162 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.7

Radius: 10.7

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.95 AU - 5.31 AU

Year: 6536 Days

Day: 10.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,739,378 km

• M1: 267,780 km (0.103 R)
• M2: 797,357 km (0.057 R)
• M3: 1,280,857 km (0.076 R)
• M4: 1,943,576 km (0.113 R)
• M5: 2,822,014 km (0.113 R)
• M6: 3,635,976 km (0.118 R)
• M7: 4,621,976 km (0.089 R)
• M8: 5,323,440 km (0.1 R)
• M9: 6,563,307 km (0.087 R)
• M10: 7,115,772 km (0.074 R)
• M11: 8,616,538 km (0.108 R)
• M12: 9,752,584 km (0.1 R)
• M13: 11,025,961 km (0.1 R)
• M14: 12,538,097 km (0.098 R)
• M15: 13,481,461 km (0.115 R)
• M16: 14,714,297 km (0.116 R)
• M17: 15,358,316 km (0.034 R)
• M18: 18,292,528 km (0.031 R)
• M19: 19,328,942 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.1

Radius: 4.1

Gravity: 20.59 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.86 AU - 6.34 AU

Year: 9883 Days

Day: 23.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,739,378 km

• M1: 51,013 km (0.062 R)
• M2: 224,098 km (0.029 R)
• M3: 803,939 km (0.09 R)
• M4: 992,881 km (0.096 R)
• M5: 1,124,228 km (0.037 R)
• M6: 3,016,791 km (0.044 R)
• M7: 3,685,194 km (0.113 R)
• M8: 3,879,073 km (0.085 R)
• M9: 4,130,846 km (0.12 R)
• M10: 5,128,215 km (0.103 R)
• M11: 6,040,762 km (0.074 R)
• M12: 6,588,141 km (0.104 R)
• M13: 8,099,977 km (0.077 R)
• M14: 9,645,772 km (0.06 R)
• M15: 10,535,879 km (0.053 R)
• M16: 13,249,883 km (0.118 R)
• M17: 13,820,450 km (0.118 R)
• M18: 14,586,241 km (0.076 R)
• M19: 16,331,300 km (0.092 R)
• M20: 16,591,451 km (0.116 R)
• M21: 17,253,870 km (0.079 R)
• M22: 18,420,135 km (0.048 R)
• M23: 19,130,277 km (0.097 R)
• M24: 19,564,858 km (0.039 R)
• M25: 24,196,259 km (0.1 R)
• M26: 28,745,979 km (0.102 R)
• M27: 30,282,947 km (0.059 R)
• M28: 30,774,227 km (0.058 R)
• M29: 35,112,864 km (0.111 R)
• M30: 35,546,249 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.4

Radius: 6.1

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 10.29 AU - 11.03 AU

Year: 22832 Days

Day: 16.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,739,378 km

• M1: 77,940 km (0.097 R)
• M2: 321,187 km (0.036 R)
• M3: 654,341 km (0.108 R)
• M4: 1,045,390 km (0.084 R)
• M5: 1,258,118 km (0.086 R)
• M6: 1,483,861 km (0.072 R)
• M7: 2,038,121 km (0.11 R)
• M8: 2,721,484 km (0.113 R)
• M9: 3,076,031 km (0.1 R)
• M10: 3,347,851 km (0.081 R)
• M11: 3,908,394 km (0.094 R)
• M12: 4,564,081 km (0.083 R)
• M13: 5,406,018 km (0.104 R)
• M14: 5,641,635 km (0.031 R)
• M15: 6,743,423 km (0.061 R)
• M16: 8,082,923 km (0.108 R)
• M17: 8,601,578 km (0.113 R)
• M18: 9,087,023 km (0.04 R)
• M19: 10,053,725 km (0.11 R)
• M20: 10,837,917 km (0.037 R)
• M21: 17,504,746 km (0.094 R)
• M22: 19,632,925 km (0.1 R)
• M23: 21,338,191 km (0.114 R)
• M24: 23,762,126 km (0.066 R)
• M25: 25,586,023 km (0.099 R)
• M26: 39,693,850 km (0.059 R)
• M27: 40,435,706 km (0.055 R)
• M28: 43,339,251 km (0.09 R)
• M29: 44,284,261 km (0.108 R)
• M30: 45,404,151 km (0.09 R)
• M31: 45,889,745 km (0.091 R)
• M32: 48,370,228 km (0.104 R)
• M33: 51,638,492 km (0.086 R)
• M34: 53,057,578 km (0.098 R)
• M35: 65,153,014 km (0.08 R)
• M36: 65,770,704 km (0.099 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 15,214 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit