🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.8

Radius: 9.5

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.52 AU - 0.54 AU

Year: 257 Days

Day: 10.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 75.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,256,807 km

• M1: 118,182 km (0.045 R)
• M2: 517,609 km (0.068 R)
• M3: 966,103 km (0.076 R)
• M4: 1,273,227 km (0.058 R)
• M5: 1,596,060 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.5

Radius: 12.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.68 AU - 0.7 AU

Year: 382 Days

Day: 8.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,256,807 km

• M1: 153,338 km (0.11 R)
• M2: 619,036 km (0.113 R)
• M3: 1,057,059 km (0.108 R)
• M4: 1,458,430 km (0.113 R)
• M5: 1,924,726 km (0.081 R)
• M6: 2,462,381 km (0.078 R)
• M7: 2,917,158 km (0.115 R)
• M8: 3,451,522 km (0.081 R)
• M9: 4,445,750 km (0.048 R)
• M10: 4,851,459 km (0.077 R)
• M11: 5,458,228 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.5

Radius: 9.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.86 AU - 0.96 AU

Year: 579 Days

Day: 10.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 77,256,807 km

• M1: 113,246 km (0.098 R)
• M2: 512,522 km (0.079 R)
• M3: 992,133 km (0.041 R)
• M4: 1,437,336 km (0.088 R)
• M5: 1,731,745 km (0.031 R)
• M6: 2,085,394 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.6

Radius: 14.9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.83 AU - 1.03 AU

Year: 598 Days

Day: 13.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,256,807 km

• M1: 185,501 km (0.091 R)
• M2: 777,759 km (0.096 R)
• M3: 1,278,314 km (0.112 R)
• M4: 1,781,711 km (0.116 R)
• M5: 2,533,739 km (0.108 R)
• M6: 3,050,600 km (0.04 R)
• M7: 3,584,215 km (0.063 R)
• M8: 4,597,891 km (0.088 R)
• M9: 5,164,118 km (0.11 R)
• M10: 5,628,470 km (0.058 R)
• M11: 6,397,553 km (0.106 R)
• M12: 7,888,894 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.7

Radius: 8.7

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.3 AU - 3.78 AU

Year: 4442 Days

Day: 11.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,256,807 km

• M1: 108,159 km (0.104 R)
• M2: 385,963 km (0.078 R)
• M3: 658,081 km (0.082 R)
• M4: 1,318,705 km (0.111 R)
• M5: 2,392,968 km (0.106 R)
• M6: 2,992,107 km (0.117 R)
• M7: 4,410,444 km (0.089 R)
• M8: 5,288,883 km (0.117 R)
• M9: 5,920,785 km (0.109 R)
• M10: 7,280,480 km (0.063 R)
• M11: 7,975,810 km (0.07 R)
• M12: 9,306,334 km (0.113 R)
• M13: 10,708,964 km (0.054 R)
• M14: 11,387,689 km (0.087 R)
• M15: 14,221,970 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.3

Radius: 12.1

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.47 AU - 5.61 AU

Year: 6451 Days

Day: 7.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,256,807 km

• M1: 150,795 km (0.099 R)
• M2: 740,958 km (0.093 R)
• M3: 1,134,251 km (0.101 R)
• M4: 2,703,084 km (0.051 R)
• M5: 4,093,147 km (0.03 R)
• M6: 4,704,853 km (0.099 R)
• M7: 5,346,329 km (0.078 R)
• M8: 6,382,593 km (0.089 R)
• M9: 6,948,821 km (0.118 R)
• M10: 8,387,354 km (0.054 R)
• M11: 10,781,668 km (0.099 R)
• M12: 11,330,692 km (0.063 R)
• M13: 12,322,676 km (0.091 R)
• M14: 12,812,459 km (0.075 R)
• M15: 13,202,311 km (0.098 R)
• M16: 17,077,046 km (0.051 R)
• M17: 17,617,992 km (0.066 R)
• M18: 18,240,020 km (0.027 R)
• M19: 23,924,290 km (0.03 R)
• M20: 24,773,407 km (0.088 R)
• M21: 25,818,498 km (0.095 R)
• M22: 26,531,482 km (0.071 R)
• M23: 29,418,870 km (0.051 R)
• M24: 32,819,678 km (0.068 R)
• M25: 33,973,826 km (0.098 R)
• M26: 34,507,292 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.4

Radius: 7.7

Gravity: 13.45 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.92 AU - 7.36 AU

Year: 12723 Days

Day: 19.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 77,256,807 km

• M1: 95,743 km (0.078 R)
• M2: 423,512 km (0.108 R)
• M3: 1,064,389 km (0.074 R)
• M4: 1,960,929 km (0.12 R)
• M5: 2,258,778 km (0.093 R)
• M6: 3,017,539 km (0.11 R)
• M7: 3,656,172 km (0.063 R)
• M8: 4,762,448 km (0.039 R)
• M9: 5,165,166 km (0.072 R)
• M10: 7,439,951 km (0.075 R)
• M11: 8,122,416 km (0.086 R)
• M12: 10,476,040 km (0.052 R)
• M13: 10,870,080 km (0.09 R)
• M14: 12,863,023 km (0.072 R)
• M15: 15,016,634 km (0.113 R)
• M16: 16,253,360 km (0.051 R)
• M17: 18,193,495 km (0.091 R)
• M18: 20,110,143 km (0.12 R)
• M19: 21,974,282 km (0.031 R)
• M20: 22,341,993 km (0.113 R)
• M21: 24,340,022 km (0.076 R)
• M22: 26,975,338 km (0.11 R)
• M23: 27,397,055 km (0.091 R)
• M24: 29,017,349 km (0.083 R)
• M25: 33,406,401 km (0.115 R)
• M26: 35,505,858 km (0.118 R)
• M27: 39,287,393 km (0.073 R)
• M28: 40,513,497 km (0.092 R)
• M29: 43,185,165 km (0.106 R)
• M30: 44,784,516 km (0.118 R)
• M31: 47,486,254 km (0.1 R)
• M32: 49,346,503 km (0.063 R)
• M33: 49,819,083 km (0.12 R)
• M34: 50,773,218 km (0.11 R)
• M35: 56,927,974 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 1000

Radius: 4.4

Gravity: 51.65 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.74 AU - 10.54 AU

Year: 16936 Days

Day: 18.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 77,256,807 km

• M1: 55,800 km (0.071 R)
• M2: 266,583 km (0.112 R)
• M3: 490,083 km (0.062 R)
• M4: 644,916 km (0.059 R)
• M5: 790,326 km (0.032 R)
• M6: 1,121,984 km (0.094 R)
• M7: 1,642,884 km (0.047 R)
• M8: 1,898,846 km (0.104 R)
• M9: 2,181,137 km (0.07 R)
• M10: 2,560,816 km (0.094 R)
• M11: 2,829,195 km (0.088 R)
• M12: 3,224,881 km (0.038 R)
• M13: 3,808,762 km (0.072 R)
• M14: 3,996,956 km (0.029 R)
• M15: 5,221,414 km (0.102 R)
• M16: 5,815,468 km (0.053 R)
• M17: 6,631,075 km (0.098 R)
• M18: 7,717,305 km (0.096 R)
• M19: 11,162,395 km (0.049 R)
• M20: 11,354,329 km (0.072 R)
• M21: 11,744,630 km (0.088 R)
• M22: 15,195,853 km (0.051 R)
• M23: 15,510,756 km (0.119 R)
• M24: 15,669,779 km (0.045 R)
• M25: 17,406,311 km (0.077 R)
• M26: 20,867,257 km (0.081 R)
• M27: 28,511,559 km (0.083 R)
• M28: 45,162,101 km (0.058 R)
• M29: 49,331,095 km (0.077 R)
• M30: 51,596,904 km (0.115 R)
• M31: 53,567,706 km (0.1 R)
• M32: 54,113,739 km (0.072 R)
• M33: 56,522,863 km (0.118 R)
• M34: 59,196,177 km (0.096 R)
• M35: 60,563,950 km (0.045 R)
• M36: 62,554,200 km (0.108 R)
• M37: 75,191,031 km (0.212 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 519 - 19,609 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit