🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.9

Radius: 14.3

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.59 AU - 0.85 AU

Year: 388 Days

Day: 13.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,099,493 km

• M1: 178,470 km (0.072 R)
• M2: 750,084 km (0.104 R)
• M3: 1,220,868 km (0.092 R)
• M4: 1,723,218 km (0.095 R)
• M5: 2,338,065 km (0.114 R)
• M6: 3,409,335 km (0.116 R)
• M7: 3,897,623 km (0.097 R)
• M8: 5,095,603 km (0.11 R)
• M9: 5,910,911 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.9

Radius: 11.9

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.62 AU - 1.03 AU

Year: 472 Days

Day: 6.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,099,493 km

• M1: 147,952 km (0.093 R)
• M2: 607,816 km (0.113 R)
• M3: 1,114,205 km (0.103 R)
• M4: 1,866,981 km (0.116 R)
• M5: 2,386,684 km (0.107 R)
• M6: 2,990,611 km (0.029 R)
• M7: 3,489,819 km (0.091 R)
• M8: 5,115,350 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257

Radius: 11.7

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.37 AU - 2.47 AU

Year: 2394 Days

Day: 6.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,099,493 km

• M1: 145,858 km (0.096 R)
• M2: 581,487 km (0.078 R)
• M3: 1,314,965 km (0.071 R)
• M4: 1,853,368 km (0.12 R)
• M5: 2,362,749 km (0.103 R)
• M6: 3,211,717 km (0.116 R)
• M7: 3,584,963 km (0.097 R)
• M8: 4,004,585 km (0.094 R)
• M9: 4,570,813 km (0.065 R)
• M10: 5,127,467 km (0.032 R)
• M11: 5,818,609 km (0.101 R)
• M12: 6,377,058 km (0.098 R)
• M13: 6,894,667 km (0.092 R)
• M14: 7,467,028 km (0.11 R)
• M15: 8,240,898 km (0.076 R)
• M16: 9,723,263 km (0.096 R)
• M17: 10,177,742 km (0.119 R)
• M18: 12,102,169 km (0.073 R)
• M19: 13,209,342 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803

Radius: 10.3

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.69 AU - 4.23 AU

Year: 5010 Days

Day: 11.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,099,493 km

• M1: 130,300 km (0.096 R)
• M2: 894,595 km (0.102 R)
• M3: 1,321,996 km (0.113 R)
• M4: 3,362,212 km (0.098 R)
• M5: 4,193,528 km (0.112 R)
• M6: 4,567,373 km (0.103 R)
• M7: 5,734,685 km (0.115 R)
• M8: 7,407,039 km (0.118 R)
• M9: 10,334,670 km (0.118 R)
• M10: 10,880,552 km (0.062 R)
• M11: 12,634,288 km (0.041 R)
• M12: 13,205,752 km (0.041 R)
• M13: 15,371,929 km (0.039 R)
• M14: 19,016,582 km (0.119 R)
• M15: 23,978,893 km (0.092 R)
• M16: 25,260,648 km (0.054 R)
• M17: 28,841,871 km (0.086 R)
• M18: 31,598,062 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.9

Radius: 13.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.47 AU - 5.45 AU

Year: 7024 Days

Day: 8.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,099,493 km

• M1: 166,652 km (0.1 R)
• M2: 663,915 km (0.058 R)
• M3: 1,096,702 km (0.087 R)
• M4: 1,827,787 km (0.105 R)
• M5: 2,898,459 km (0.066 R)
• M6: 4,415,381 km (0.098 R)
• M7: 5,276,466 km (0.119 R)
• M8: 5,850,174 km (0.117 R)
• M9: 6,745,966 km (0.108 R)
• M10: 7,242,183 km (0.063 R)
• M11: 9,913,552 km (0.075 R)
• M12: 10,556,374 km (0.029 R)
• M13: 11,307,654 km (0.112 R)
• M14: 16,902,914 km (0.112 R)
• M15: 18,659,342 km (0.06 R)
• M16: 19,523,270 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694

Radius: 3

Gravity: 77.11 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.52 AU - 9.12 AU

Year: 12592 Days

Day: 24.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 76,099,493 km

• M1: 37,549 km (0.104 R)
• M2: 163,361 km (0.114 R)
• M3: 280,197 km (0.099 R)
• M4: 626,516 km (0.088 R)
• M5: 719,865 km (0.096 R)
• M6: 892,950 km (0.099 R)
• M7: 1,216,829 km (0.078 R)
• M8: 1,741,170 km (0.109 R)
• M9: 2,035,129 km (0.075 R)
• M10: 2,242,322 km (0.081 R)
• M11: 2,743,027 km (0.101 R)
• M12: 3,791,708 km (0.105 R)
• M13: 5,426,962 km (0.1 R)
• M14: 5,750,991 km (0.053 R)
• M15: 6,202,926 km (0.114 R)
• M16: 6,398,002 km (0.079 R)
• M17: 6,557,024 km (0.108 R)
• M18: 6,841,559 km (0.104 R)
• M19: 9,473,285 km (0.108 R)
• M20: 9,995,382 km (0.088 R)
• M21: 10,647,030 km (0.109 R)
• M22: 10,814,280 km (0.113 R)
• M23: 11,442,442 km (0.099 R)
• M24: 11,735,803 km (0.089 R)
• M25: 12,337,785 km (0.099 R)
• M26: 14,743,768 km (0.117 R)
• M27: 16,834,847 km (0.11 R)
• M28: 20,286,518 km (0.089 R)
• M29: 25,251,971 km (0.101 R)
• M30: 26,762,461 km (0.099 R)
• M31: 29,631,149 km (0.081 R)
• M32: 29,962,060 km (0.114 R)
• M33: 36,979,696 km (0.07 R)
• M34: 39,055,666 km (0.102 R)
• M35: 43,864,788 km (0.059 R)
• M36: 45,600,273 km (0.109 R)
• M37: 53,325,208 km (0.107 R)
• M38: 54,802,188 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 621.4

Radius: 4.5

Gravity: 30.69 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.75 AU - 9.41 AU

Year: 13269 Days

Day: 23.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,099,493 km

• M1: 68,665 km (0.079 R)
• M2: 376,987 km (0.076 R)
• M3: 552,465 km (0.099 R)
• M4: 1,062,594 km (0.09 R)
• M5: 1,219,971 km (0.072 R)
• M6: 1,675,496 km (0.111 R)
• M7: 1,924,726 km (0.093 R)
• M8: 2,314,728 km (0.1 R)
• M9: 3,376,274 km (0.095 R)
• M10: 4,568,719 km (0.103 R)
• M11: 5,433,395 km (0.073 R)
• M12: 5,575,662 km (0.106 R)
• M13: 5,830,278 km (0.104 R)
• M14: 7,437,408 km (0.089 R)
• M15: 9,067,127 km (0.038 R)
• M16: 9,624,828 km (0.064 R)
• M17: 11,610,291 km (0.109 R)
• M18: 16,442,601 km (0.067 R)
• M19: 19,090,932 km (0.061 R)
• M20: 19,585,952 km (0.07 R)
• M21: 21,210,285 km (0.101 R)
• M22: 22,737,829 km (0.117 R)
• M23: 34,068,222 km (0.104 R)
• M24: 36,534,792 km (0.107 R)
• M25: 41,544,675 km (0.111 R)
• M26: 41,820,384 km (0.072 R)
• M27: 43,217,030 km (0.099 R)
• M28: 46,993,478 km (0.057 R)
• M29: 52,738,037 km (0.064 R)
• M30: 54,038,790 km (0.058 R)
• M31: 55,360,786 km (0.03 R)
• M32: 55,694,539 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.3

Radius: 3.8

Gravity: 17.61 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.98 AU - 11.14 AU

Year: 17339 Days

Day: 23.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,099,493 km

• M1: 47,572 km (0.061 R)
• M2: 287,078 km (0.057 R)
• M3: 487,839 km (0.065 R)
• M4: 620,682 km (0.114 R)
• M5: 1,161,179 km (0.119 R)
• M6: 1,848,581 km (0.057 R)
• M7: 3,016,491 km (0.099 R)
• M8: 3,298,483 km (0.1 R)
• M9: 3,941,754 km (0.077 R)
• M10: 4,664,910 km (0.104 R)
• M11: 4,945,556 km (0.075 R)
• M12: 5,506,398 km (0.041 R)
• M13: 5,819,956 km (0.025 R)
• M14: 6,675,356 km (0.088 R)
• M15: 7,359,018 km (0.065 R)
• M16: 7,611,240 km (0.099 R)
• M17: 8,266,629 km (0.11 R)
• M18: 10,094,266 km (0.093 R)
• M19: 12,291,260 km (0.095 R)
• M20: 12,586,566 km (0.056 R)
• M21: 16,867,010 km (0.1 R)
• M22: 20,257,796 km (0.03 R)
• M23: 21,938,827 km (0.109 R)
• M24: 22,548,438 km (0.111 R)
• M25: 28,347,301 km (0.116 R)
• M26: 29,278,996 km (0.051 R)
• M27: 37,110,594 km (0.109 R)
• M28: 37,479,652 km (0.118 R)
• M29: 42,770,480 km (0.075 R)
• M30: 44,270,199 km (0.097 R)
• M31: 45,945,844 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.6

Radius: 6

Gravity: 22.82 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.69 AU - 11.07 AU

Year: 18266 Days

Day: 19.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,099,493 km

• M1: 74,799 km (0.118 R)
• M2: 555,906 km (0.066 R)
• M3: 940,522 km (0.109 R)
• M4: 1,234,182 km (0.094 R)
• M5: 1,505,553 km (0.077 R)
• M6: 1,797,718 km (0.05 R)
• M7: 2,589,240 km (0.082 R)
• M8: 2,781,922 km (0.103 R)
• M9: 4,051,709 km (0.077 R)
• M10: 4,446,946 km (0.068 R)
• M11: 6,035,227 km (0.055 R)
• M12: 7,188,776 km (0.081 R)
• M13: 10,641,495 km (0.11 R)
• M14: 11,979,349 km (0.06 R)
• M15: 13,141,724 km (0.09 R)
• M16: 17,586,726 km (0.105 R)
• M17: 18,193,495 km (0.116 R)
• M18: 18,993,993 km (0.093 R)
• M19: 19,540,623 km (0.106 R)
• M20: 21,832,313 km (0.116 R)
• M21: 26,827,386 km (0.108 R)
• M22: 28,097,472 km (0.11 R)
• M23: 39,733,793 km (0.12 R)
• M24: 44,974,057 km (0.098 R)
• M25: 46,270,771 km (0.102 R)
• M26: 46,763,397 km (0.116 R)
• M27: 50,137,278 km (0.072 R)
• M28: 54,213,670 km (0.071 R)
• M29: 61,621,158 km (0.083 R)
• M30: 62,617,031 km (0.112 R)
• M31: 72,067,577 km (0.075 R)
• M32: 74,289,405 km (0.099 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: 301 - 12,754 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit