🌌 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: 601

Radius: 9.8

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.44 AU - 0.62 AU

Year: 266 Days

Day: 13.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,029,186 km

• M1: 121,922 km (0.11 R)
• M2: 486,043 km (0.062 R)
• M3: 853,306 km (0.07 R)
• M4: 1,222,364 km (0.093 R)
• M5: 1,536,969 km (0.099 R)
• M6: 1,948,662 km (0.096 R)
• M7: 2,392,220 km (0.081 R)
• M8: 2,772,647 km (0.093 R)
• M9: 3,472,615 km (0.118 R)
• M10: 3,802,030 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.1

Radius: 12.3

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.54 AU - 0.88 AU

Year: 413 Days

Day: 10.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,029,186 km

• M1: 153,787 km (0.097 R)
• M2: 636,090 km (0.06 R)
• M3: 1,087,577 km (0.117 R)
• M4: 1,779,766 km (0.094 R)
• M5: 2,170,815 km (0.098 R)
• M6: 2,841,911 km (0.091 R)
• M7: 3,926,047 km (0.108 R)
• M8: 5,236,524 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.7

Radius: 12.8

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.67 AU - 0.97 AU

Year: 513 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,029,186 km

• M1: 159,172 km (0.09 R)
• M2: 583,282 km (0.114 R)
• M3: 1,111,662 km (0.104 R)
• M4: 1,568,683 km (0.074 R)
• M5: 2,179,791 km (0.063 R)
• M6: 2,878,562 km (0.09 R)
• M7: 3,695,666 km (0.103 R)
• M8: 4,094,943 km (0.1 R)
• M9: 4,615,394 km (0.088 R)
• M10: 5,030,378 km (0.098 R)
• M11: 5,558,010 km (0.108 R)
• M12: 6,312,432 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.3

Radius: 13.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.44 AU - 1.48 AU

Year: 1218 Days

Day: 11.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,029,186 km

• M1: 165,455 km (0.093 R)
• M2: 614,698 km (0.105 R)
• M3: 1,061,098 km (0.065 R)
• M4: 1,594,863 km (0.073 R)
• M5: 2,711,910 km (0.071 R)
• M6: 3,343,213 km (0.037 R)
• M7: 4,001,893 km (0.101 R)
• M8: 4,918,030 km (0.115 R)
• M9: 6,414,757 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.9

Radius: 9

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.34 AU - 2 AU

Year: 1490 Days

Day: 10.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,029,186 km

• M1: 112,049 km (0.112 R)
• M2: 680,521 km (0.112 R)
• M3: 1,158,935 km (0.111 R)
• M4: 1,578,108 km (0.105 R)
• M5: 1,948,063 km (0.08 R)
• M6: 2,864,650 km (0.111 R)
• M7: 3,235,652 km (0.104 R)
• M8: 6,972,458 km (0.086 R)
• M9: 7,281,976 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.6

Radius: 11.8

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.78 AU - 2.78 AU

Year: 2376 Days

Day: 13.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,029,186 km

• M1: 146,756 km (0.09 R)
• M2: 557,850 km (0.1 R)
• M3: 994,826 km (0.062 R)
• M4: 1,516,025 km (0.111 R)
• M5: 1,975,889 km (0.034 R)
• M6: 3,275,894 km (0.104 R)
• M7: 4,202,503 km (0.086 R)
• M8: 6,369,578 km (0.104 R)
• M9: 6,905,587 km (0.11 R)
• M10: 7,638,766 km (0.08 R)
• M11: 8,333,499 km (0.103 R)
• M12: 9,069,969 km (0.057 R)
• M13: 9,716,232 km (0.116 R)
• M14: 11,467,126 km (0.077 R)
• M15: 12,534,955 km (0.108 R)
• M16: 14,431,258 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.2

Radius: 14.3

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.69 AU - 5.97 AU

Year: 8494 Days

Day: 9.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,029,186 km

• M1: 177,872 km (0.059 R)
• M2: 720,314 km (0.093 R)
• M3: 1,969,007 km (0.05 R)
• M4: 2,447,571 km (0.075 R)
• M5: 2,940,795 km (0.056 R)
• M6: 3,744,435 km (0.106 R)
• M7: 4,988,640 km (0.111 R)
• M8: 5,995,733 km (0.095 R)
• M9: 6,677,301 km (0.111 R)
• M10: 7,173,218 km (0.058 R)
• M11: 8,068,711 km (0.086 R)
• M12: 8,587,815 km (0.088 R)
• M13: 9,838,154 km (0.112 R)
• M14: 10,685,626 km (0.04 R)
• M15: 12,412,734 km (0.05 R)
• M16: 14,009,242 km (0.082 R)
• M17: 18,557,616 km (0.056 R)
• M18: 19,083,452 km (0.1 R)
• M19: 20,402,008 km (0.038 R)
• M20: 22,450,302 km (0.088 R)
• M21: 24,994,214 km (0.107 R)
• M22: 27,724,824 km (0.111 R)
• M23: 32,455,258 km (0.068 R)
• M24: 34,783,749 km (0.09 R)
• M25: 35,468,907 km (0.111 R)
• M26: 37,102,965 km (0.027 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.9

Radius: 9.7

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 5.14 AU - 5.78 AU

Year: 8806 Days

Day: 8.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,029,186 km

• M1: 126,709 km (0.094 R)
• M2: 687,851 km (0.088 R)
• M3: 1,278,164 km (0.109 R)
• M4: 1,642,884 km (0.071 R)
• M5: 2,060,112 km (0.108 R)
• M6: 2,767,411 km (0.077 R)
• M7: 4,067,716 km (0.09 R)
• M8: 7,247,119 km (0.079 R)
• M9: 8,688,345 km (0.084 R)
• M10: 11,573,340 km (0.08 R)
• M11: 12,015,851 km (0.111 R)
• M12: 13,411,748 km (0.089 R)
• M13: 16,177,963 km (0.115 R)
• M14: 17,155,136 km (0.09 R)
• M15: 35,144,878 km (0.039 R)
• M16: 36,308,450 km (0.102 R)
• M17: 45,866,109 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.9

Radius: 4

Gravity: 38.06 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.26 AU - 6.9 AU

Year: 11651 Days

Day: 21.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,029,186 km

• M1: 57,745 km (0.044 R)
• M2: 186,698 km (0.056 R)
• M3: 367,263 km (0.058 R)
• M4: 1,583,194 km (0.047 R)
• M5: 2,448,169 km (0.085 R)
• M6: 2,891,428 km (0.081 R)
• M7: 3,461,396 km (0.065 R)
• M8: 3,773,008 km (0.092 R)
• M9: 6,010,842 km (0.047 R)
• M10: 6,195,446 km (0.107 R)
• M11: 9,098,842 km (0.102 R)
• M12: 10,519,872 km (0.114 R)
• M13: 11,227,320 km (0.088 R)
• M14: 22,694,595 km (0.094 R)
• M15: 23,323,505 km (0.119 R)
• M16: 33,273,708 km (0.108 R)
• M17: 35,028,192 km (0.099 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 13,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit