🌌 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: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.7 AU

Year: 320 Days

Day: 37.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,208,923 km

• M1: 68,217 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.2

Radius: 10.3

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 5.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,208,923 km

• M1: 128,056 km (0.091 R)
• M2: 571,913 km (0.091 R)
• M3: 1,098,198 km (0.111 R)
• M4: 1,532,181 km (0.099 R)
• M5: 1,947,315 km (0.096 R)
• M6: 2,371,725 km (0.084 R)
• M7: 3,063,016 km (0.091 R)
• M8: 3,678,163 km (0.1 R)
• M9: 4,164,655 km (0.083 R)
• M10: 4,663,863 km (0.075 R)
• M11: 5,123,278 km (0.089 R)
• M12: 5,545,743 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.1

Radius: 10.1

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.72 AU - 1.04 AU

Year: 542 Days

Day: 6.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,208,923 km

• M1: 125,662 km (0.093 R)
• M2: 442,062 km (0.081 R)
• M3: 867,668 km (0.106 R)
• M4: 1,209,050 km (0.107 R)
• M5: 1,673,252 km (0.115 R)
• M6: 2,205,671 km (0.117 R)
• M7: 2,602,853 km (0.057 R)
• M8: 2,929,126 km (0.053 R)
• M9: 4,106,162 km (0.087 R)
• M10: 4,711,585 km (0.106 R)
• M11: 5,078,698 km (0.075 R)
• M12: 5,464,960 km (0.082 R)
• M13: 5,965,813 km (0.058 R)
• M14: 6,681,041 km (0.107 R)
• M15: 7,038,131 km (0.119 R)
• M16: 7,363,806 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.7

Radius: 15

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.8 AU - 1.06 AU

Year: 588 Days

Day: 9.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,208,923 km

• M1: 188,045 km (0.105 R)
• M2: 685,158 km (0.063 R)
• M3: 1,279,511 km (0.094 R)
• M4: 1,919,490 km (0.103 R)
• M5: 2,995,997 km (0.116 R)
• M6: 3,564,468 km (0.08 R)
• M7: 4,324,126 km (0.11 R)
• M8: 5,432,347 km (0.105 R)
• M9: 5,978,380 km (0.105 R)
• M10: 7,353,633 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.8

Radius: 14.1

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.89 AU - 3.77 AU

Year: 3986 Days

Day: 6.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,208,923 km

• M1: 179,667 km (0.087 R)
• M2: 752,328 km (0.096 R)
• M3: 1,253,032 km (0.088 R)
• M4: 1,734,737 km (0.1 R)
• M5: 3,053,891 km (0.104 R)
• M6: 3,579,578 km (0.074 R)
• M7: 4,321,882 km (0.057 R)
• M8: 5,319,999 km (0.119 R)
• M9: 5,832,223 km (0.119 R)
• M10: 6,556,725 km (0.07 R)
• M11: 7,083,010 km (0.081 R)
• M12: 8,081,127 km (0.081 R)
• M13: 9,285,241 km (0.096 R)
• M14: 10,315,521 km (0.114 R)
• M15: 12,887,857 km (0.109 R)
• M16: 14,271,786 km (0.1 R)
• M17: 15,480,836 km (0.068 R)
• M18: 21,008,029 km (0.102 R)
• M19: 22,711,051 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.9

Radius: 9.1

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.2 AU - 5.28 AU

Year: 7869 Days

Day: 10.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,208,923 km

• M1: 147,952 km (0.112 R)
• M2: 469,438 km (0.074 R)
• M3: 826,528 km (0.104 R)
• M4: 1,150,258 km (0.118 R)
• M5: 1,472,791 km (0.028 R)
• M6: 2,619,758 km (0.112 R)
• M7: 4,278,350 km (0.11 R)
• M8: 6,340,257 km (0.098 R)
• M9: 6,646,484 km (0.05 R)
• M10: 6,998,188 km (0.094 R)
• M11: 8,010,667 km (0.055 R)
• M12: 10,092,920 km (0.099 R)
• M13: 11,333,086 km (0.093 R)
• M14: 12,145,103 km (0.113 R)
• M15: 13,269,032 km (0.082 R)
• M16: 14,113,362 km (0.075 R)
• M17: 14,814,079 km (0.117 R)
• M18: 15,971,069 km (0.086 R)
• M19: 17,851,364 km (0.056 R)
• M20: 19,802,569 km (0.047 R)
• M21: 21,432,139 km (0.102 R)
• M22: 29,409,595 km (0.107 R)
• M23: 30,359,691 km (0.051 R)
• M24: 31,134,309 km (0.062 R)
• M25: 32,723,188 km (0.09 R)
• M26: 33,230,624 km (0.093 R)
• M27: 34,157,083 km (0.034 R)
• M28: 34,889,664 km (0.045 R)
• M29: 35,525,754 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873

Radius: 3.1

Gravity: 90.84 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.02 AU - 7.5 AU

Year: 11530 Days

Day: 23.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,208,923 km

• M1: 38,746 km (0.098 R)
• M2: 150,047 km (0.112 R)
• M3: 295,007 km (0.059 R)
• M4: 430,243 km (0.092 R)
• M5: 751,580 km (0.059 R)
• M6: 985,401 km (0.105 R)
• M7: 1,239,119 km (0.113 R)
• M8: 1,642,884 km (0.089 R)
• M9: 3,638,669 km (0.096 R)
• M10: 5,138,836 km (0.094 R)
• M11: 6,922,641 km (0.041 R)
• M12: 13,846,629 km (0.07 R)
• M13: 14,453,697 km (0.038 R)
• M14: 15,866,051 km (0.107 R)
• M15: 17,136,586 km (0.108 R)
• M16: 21,352,553 km (0.112 R)
• M17: 21,889,908 km (0.103 R)
• M18: 22,436,090 km (0.116 R)
• M19: 27,979,888 km (0.054 R)
• M20: 38,820,947 km (0.073 R)
• M21: 41,667,495 km (0.115 R)
• M22: 44,941,295 km (0.03 R)
• M23: 55,111,556 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.1

Radius: 7.5

Gravity: 13.53 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.52 AU - 9.86 AU

Year: 16805 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,208,923 km

• M1: 93,199 km (0.047 R)
• M2: 396,734 km (0.093 R)
• M3: 809,324 km (0.063 R)
• M4: 1,382,733 km (0.071 R)
• M5: 2,120,999 km (0.083 R)
• M6: 2,657,905 km (0.084 R)
• M7: 3,123,753 km (0.115 R)
• M8: 5,066,132 km (0.081 R)
• M9: 5,435,190 km (0.046 R)
• M10: 5,981,970 km (0.114 R)
• M11: 6,522,018 km (0.093 R)
• M12: 8,800,843 km (0.097 R)
• M13: 9,280,603 km (0.059 R)
• M14: 10,885,040 km (0.077 R)
• M15: 11,313,489 km (0.056 R)
• M16: 12,935,578 km (0.054 R)
• M17: 14,413,306 km (0.098 R)
• M18: 17,039,048 km (0.096 R)
• M19: 20,517,198 km (0.098 R)
• M20: 20,889,099 km (0.07 R)
• M21: 25,709,591 km (0.102 R)
• M22: 28,491,662 km (0.108 R)
• M23: 35,439,137 km (0.079 R)
• M24: 37,752,369 km (0.114 R)
• M25: 49,664,698 km (0.054 R)
• M26: 53,779,387 km (0.043 R)
• M27: 55,379,187 km (0.089 R)
• M28: 57,930,429 km (0.083 R)
• M29: 58,860,329 km (0.079 R)
• M30: 61,709,570 km (0.027 R)
• M31: 66,052,696 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.2

Radius: 4.8

Gravity: 10.82 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7.48 AU - 11.76 AU

Year: 19574 Days

Day: 16.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,208,923 km

• M1: 59,690 km (0.082 R)
• M2: 299,944 km (0.087 R)
• M3: 644,916 km (0.104 R)
• M4: 827,127 km (0.079 R)
• M5: 1,089,222 km (0.049 R)
• M6: 2,617,963 km (0.097 R)
• M7: 3,041,026 km (0.117 R)
• M8: 3,406,194 km (0.12 R)
• M9: 4,431,687 km (0.099 R)
• M10: 5,031,425 km (0.116 R)
• M11: 6,585,897 km (0.072 R)
• M12: 10,387,328 km (0.067 R)
• M13: 13,432,991 km (0.037 R)
• M14: 14,014,329 km (0.058 R)
• M15: 15,646,441 km (0.12 R)
• M16: 17,629,361 km (0.119 R)
• M17: 22,894,757 km (0.046 R)
• M18: 25,537,853 km (0.105 R)
• M19: 27,959,692 km (0.102 R)
• M20: 37,510,021 km (0.101 R)
• M21: 43,079,100 km (0.08 R)
• M22: 47,230,292 km (0.115 R)
• M23: 51,640,437 km (0.112 R)
• M24: 51,954,293 km (0.052 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 411.3

Radius: 7.7

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 8.26 AU - 12.48 AU

Year: 21907 Days

Day: 24 Hours

Environment

Temp: -235 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,208,923 km

• M1: 95,892 km (0.106 R)
• M2: 390,750 km (0.089 R)
• M3: 763,248 km (0.098 R)
• M4: 1,013,974 km (0.059 R)
• M5: 1,306,737 km (0.082 R)
• M6: 1,706,014 km (0.116 R)
• M7: 1,971,850 km (0.067 R)
• M8: 2,656,559 km (0.071 R)
• M9: 2,966,376 km (0.098 R)
• M10: 3,745,482 km (0.1 R)
• M11: 4,198,614 km (0.034 R)
• M12: 5,702,372 km (0.092 R)
• M13: 6,427,473 km (0.096 R)
• M14: 7,395,520 km (0.116 R)
• M15: 7,770,712 km (0.106 R)
• M16: 8,920,072 km (0.028 R)
• M17: 9,672,998 km (0.055 R)
• M18: 14,443,375 km (0.094 R)
• M19: 18,974,545 km (0.089 R)
• M20: 19,946,333 km (0.098 R)
• M21: 20,858,132 km (0.105 R)
• M22: 21,418,376 km (0.092 R)
• M23: 21,892,900 km (0.076 R)
• M24: 37,377,028 km (0.073 R)
• M25: 43,722,521 km (0.098 R)
• M26: 46,354,845 km (0.098 R)
• M27: 50,582,481 km (0.082 R)
• M28: 52,445,872 km (0.115 R)
• M29: 55,592,962 km (0.076 R)
• M30: 60,357,954 km (0.088 R)
• M31: 62,839,334 km (0.12 R)
• M32: 66,990,226 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 20,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit