🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.5

Radius: 11.7

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.66 AU - 1.1 AU

Year: 560 Days

Day: 12.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,566,007 km

• M1: 145,708 km (0.099 R)
• M2: 523,293 km (0.116 R)
• M3: 1,234,781 km (0.093 R)
• M4: 1,620,743 km (0.111 R)
• M5: 2,074,773 km (0.071 R)
• M6: 2,807,204 km (0.096 R)
• M7: 3,272,753 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.1

Radius: 14.6

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.56 AU - 2.24 AU

Year: 1776 Days

Day: 9.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,566,007 km

• M1: 181,612 km (0.05 R)
• M2: 737,218 km (0.09 R)
• M3: 1,415,794 km (0.06 R)
• M4: 2,125,487 km (0.112 R)
• M5: 4,929,399 km (0.077 R)
• M6: 5,553,223 km (0.117 R)
• M7: 7,009,109 km (0.071 R)
• M8: 8,258,700 km (0.113 R)
• M9: 8,965,999 km (0.073 R)
• M10: 9,930,007 km (0.111 R)
• M11: 11,129,782 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.2

Radius: 11.9

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.81 AU - 2.15 AU

Year: 1890 Days

Day: 7.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,566,007 km

• M1: 147,952 km (0.118 R)
• M2: 527,931 km (0.099 R)
• M3: 902,674 km (0.114 R)
• M4: 1,352,215 km (0.114 R)
• M5: 1,742,516 km (0.101 R)
• M6: 2,149,871 km (0.097 R)
• M7: 2,961,589 km (0.091 R)
• M8: 3,746,679 km (0.095 R)
• M9: 4,733,426 km (0.106 R)
• M10: 7,036,934 km (0.081 R)
• M11: 7,444,738 km (0.08 R)
• M12: 7,892,335 km (0.064 R)
• M13: 8,508,678 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.2

Radius: 10.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.67 AU - 2.59 AU

Year: 2108 Days

Day: 10.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,566,007 km

• M1: 131,646 km (0.113 R)
• M2: 567,724 km (0.058 R)
• M3: 947,104 km (0.085 R)
• M4: 1,318,705 km (0.097 R)
• M5: 2,092,725 km (0.114 R)
• M6: 2,483,175 km (0.081 R)
• M7: 3,254,202 km (0.056 R)
• M8: 3,713,019 km (0.076 R)
• M9: 4,103,470 km (0.054 R)
• M10: 4,501,699 km (0.109 R)
• M11: 4,884,221 km (0.097 R)
• M12: 5,465,259 km (0.118 R)
• M13: 6,688,371 km (0.053 R)
• M14: 7,107,395 km (0.092 R)
• M15: 10,238,777 km (0.112 R)
• M16: 10,974,649 km (0.108 R)
• M17: 11,858,474 km (0.053 R)
• M18: 14,147,171 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.4

Radius: 14.7

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.62 AU - 2.82 AU

Year: 3043 Days

Day: 10.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,566,007 km

• M1: 182,809 km (0.116 R)
• M2: 701,464 km (0.075 R)
• M3: 1,166,265 km (0.06 R)
• M4: 1,650,813 km (0.076 R)
• M5: 2,307,547 km (0.105 R)
• M6: 3,281,579 km (0.118 R)
• M7: 4,515,612 km (0.113 R)
• M8: 6,085,641 km (0.072 R)
• M9: 8,245,535 km (0.106 R)
• M10: 8,791,268 km (0.079 R)
• M11: 9,453,089 km (0.105 R)
• M12: 10,541,414 km (0.106 R)
• M13: 11,890,936 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.3

Radius: 8.5

Gravity: 13.75 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.16 AU - 4.72 AU

Year: 5304 Days

Day: 7.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,566,007 km

• M1: 106,214 km (0.033 R)
• M2: 385,065 km (0.063 R)
• M3: 707,448 km (0.108 R)
• M4: 1,161,627 km (0.113 R)
• M5: 1,426,416 km (0.118 R)
• M6: 2,584,602 km (0.086 R)
• M7: 3,023,373 km (0.108 R)
• M8: 4,891,102 km (0.1 R)
• M9: 8,072,301 km (0.101 R)
• M10: 9,181,420 km (0.056 R)
• M11: 9,528,786 km (0.078 R)
• M12: 10,389,123 km (0.07 R)
• M13: 10,718,687 km (0.104 R)
• M14: 11,448,725 km (0.046 R)
• M15: 11,800,579 km (0.033 R)
• M16: 14,644,435 km (0.117 R)
• M17: 18,734,291 km (0.109 R)
• M18: 21,796,859 km (0.067 R)
• M19: 22,337,804 km (0.11 R)
• M20: 23,527,257 km (0.089 R)
• M21: 24,758,298 km (0.117 R)
• M22: 25,262,443 km (0.091 R)
• M23: 25,602,479 km (0.032 R)
• M24: 35,022,208 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 228.5

Radius: 4.1

Gravity: 13.59 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 7.84 AU - 8.3 AU

Year: 15549 Days

Day: 21.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,566,007 km

• M1: 84,523 km (0.086 R)
• M2: 328,667 km (0.077 R)
• M3: 551,867 km (0.119 R)
• M4: 755,768 km (0.082 R)
• M5: 1,218,475 km (0.097 R)
• M6: 1,652,608 km (0.114 R)
• M7: 1,978,133 km (0.096 R)
• M8: 3,167,735 km (0.103 R)
• M9: 3,305,814 km (0.09 R)
• M10: 6,245,262 km (0.095 R)
• M11: 8,656,630 km (0.057 R)
• M12: 13,156,983 km (0.088 R)
• M13: 14,947,370 km (0.101 R)
• M14: 18,330,676 km (0.047 R)
• M15: 21,691,691 km (0.057 R)
• M16: 27,710,911 km (0.12 R)
• M17: 32,539,631 km (0.12 R)
• M18: 33,413,582 km (0.111 R)
• M19: 33,634,538 km (0.118 R)
• M20: 35,437,342 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.7

Radius: 4.8

Gravity: 13.57 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.13 AU - 10.93 AU

Year: 21545 Days

Day: 20.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 61,566,007 km

• M1: 59,839 km (0.066 R)
• M2: 788,680 km (0.036 R)
• M3: 1,438,982 km (0.111 R)
• M4: 4,848,168 km (0.096 R)
• M5: 5,891,613 km (0.045 R)
• M6: 7,120,111 km (0.107 R)
• M7: 8,123,015 km (0.1 R)
• M8: 9,961,573 km (0.072 R)
• M9: 10,461,230 km (0.075 R)
• M10: 11,212,061 km (0.108 R)
• M11: 13,747,596 km (0.116 R)
• M12: 13,951,946 km (0.045 R)
• M13: 14,158,242 km (0.099 R)
• M14: 15,586,153 km (0.085 R)
• M15: 16,564,075 km (0.1 R)
• M16: 17,264,641 km (0.082 R)
• M17: 18,229,099 km (0.077 R)
• M18: 21,428,698 km (0.037 R)
• M19: 23,888,536 km (0.096 R)
• M20: 26,320,249 km (0.078 R)
• M21: 28,800,881 km (0.076 R)
• M22: 30,615,653 km (0.078 R)
• M23: 32,989,322 km (0.088 R)
• M24: 33,601,477 km (0.105 R)
• M25: 34,974,636 km (0.12 R)
• M26: 35,739,081 km (0.073 R)
• M27: 36,645,046 km (0.102 R)
• M28: 41,547,368 km (0.111 R)
• M29: 42,260,950 km (0.116 R)
• M30: 46,256,410 km (0.101 R)
• M31: 47,486,852 km (0.117 R)
• M32: 54,646,756 km (0.112 R)
• M33: 56,194,795 km (0.097 R)
• M34: 56,368,627 km (0.062 R)
• M35: 56,717,340 km (0.112 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 16,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit