🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.5

Radius: 11

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.57 AU - 0.61 AU

Year: 302 Days

Day: 9.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,852,908 km

• M1: 136,732 km (0.115 R)
• M2: 517,309 km (0.069 R)
• M3: 1,006,195 km (0.04 R)
• M4: 1,424,172 km (0.087 R)
• M5: 2,082,103 km (0.087 R)
• M6: 2,504,268 km (0.104 R)
• M7: 3,139,012 km (0.082 R)
• M8: 3,674,124 km (0.089 R)
• M9: 4,064,125 km (0.05 R)
• M10: 4,673,437 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.2

Radius: 11.7

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.99 AU - 1.23 AU

Year: 780 Days

Day: 14.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 70,852,908 km

• M1: 145,559 km (0.104 R)
• M2: 603,478 km (0.037 R)
• M3: 1,125,574 km (0.109 R)
• M4: 1,616,555 km (0.099 R)
• M5: 2,433,209 km (0.097 R)
• M6: 2,858,666 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.1

Radius: 12

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.93 AU - 1.99 AU

Year: 1830 Days

Day: 12.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,852,908 km

• M1: 149,448 km (0.117 R)
• M2: 595,100 km (0.119 R)
• M3: 1,255,425 km (0.065 R)
• M4: 1,924,427 km (0.075 R)
• M5: 3,882,813 km (0.105 R)
• M6: 4,734,025 km (0.072 R)
• M7: 5,292,174 km (0.089 R)
• M8: 5,705,513 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.7

Radius: 13.7

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.63 AU - 3.35 AU

Year: 3448 Days

Day: 8.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,852,908 km

• M1: 170,392 km (0.092 R)
• M2: 721,660 km (0.094 R)
• M3: 1,234,482 km (0.064 R)
• M4: 1,779,018 km (0.097 R)
• M5: 2,697,698 km (0.106 R)
• M6: 3,248,817 km (0.086 R)
• M7: 4,247,383 km (0.1 R)
• M8: 4,687,649 km (0.104 R)
• M9: 5,204,959 km (0.092 R)
• M10: 6,065,595 km (0.118 R)
• M11: 6,820,765 km (0.11 R)
• M12: 8,883,570 km (0.072 R)
• M13: 9,858,500 km (0.113 R)
• M14: 10,484,567 km (0.12 R)
• M15: 11,980,246 km (0.114 R)
• M16: 14,814,528 km (0.113 R)
• M17: 17,853,010 km (0.036 R)
• M18: 18,396,948 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.4

Radius: 13

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.04 AU - 3.22 AU

Year: 3693 Days

Day: 14 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,852,908 km

• M1: 161,715 km (0.034 R)
• M2: 638,484 km (0.084 R)
• M3: 1,148,612 km (0.076 R)
• M4: 1,800,261 km (0.085 R)
• M5: 5,329,873 km (0.112 R)
• M6: 9,476,427 km (0.112 R)
• M7: 11,909,486 km (0.087 R)
• M8: 16,791,912 km (0.092 R)
• M9: 18,560,159 km (0.038 R)
• M10: 21,668,952 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.2

Radius: 9.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.58 AU - 4.06 AU

Year: 4979 Days

Day: 5.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,852,908 km

• M1: 130,749 km (0.118 R)
• M2: 472,729 km (0.072 R)
• M3: 854,353 km (0.07 R)
• M4: 1,168,659 km (0.111 R)
• M5: 2,237,685 km (0.103 R)
• M6: 2,555,132 km (0.102 R)
• M7: 3,079,323 km (0.083 R)
• M8: 4,297,498 km (0.091 R)
• M9: 4,646,959 km (0.065 R)
• M10: 4,965,004 km (0.082 R)
• M11: 5,456,283 km (0.028 R)
• M12: 5,838,655 km (0.084 R)
• M13: 6,905,139 km (0.108 R)
• M14: 7,418,708 km (0.067 R)
• M15: 8,166,398 km (0.055 R)
• M16: 9,732,089 km (0.093 R)
• M17: 10,796,329 km (0.052 R)
• M18: 12,724,047 km (0.055 R)
• M19: 13,447,502 km (0.072 R)
• M20: 16,002,335 km (0.099 R)
• M21: 16,902,315 km (0.084 R)
• M22: 18,680,137 km (0.119 R)
• M23: 20,060,775 km (0.116 R)
• M24: 21,240,055 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 711.1

Radius: 3.3

Gravity: 65.3 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.2 AU - 7.68 AU

Year: 12192 Days

Day: 15.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,852,908 km

• M1: 43,832 km (0.106 R)
• M2: 177,273 km (0.052 R)
• M3: 327,619 km (0.041 R)
• M4: 457,769 km (0.065 R)
• M5: 679,922 km (0.094 R)
• M6: 916,287 km (0.053 R)
• M7: 1,476,531 km (0.094 R)
• M8: 1,626,877 km (0.106 R)
• M9: 2,688,423 km (0.117 R)
• M10: 3,583,318 km (0.115 R)
• M11: 3,827,910 km (0.082 R)
• M12: 6,433,905 km (0.081 R)
• M13: 7,042,918 km (0.056 R)
• M14: 7,254,300 km (0.114 R)
• M15: 7,689,480 km (0.117 R)
• M16: 8,142,014 km (0.087 R)
• M17: 10,399,446 km (0.117 R)
• M18: 13,295,960 km (0.058 R)
• M19: 13,424,464 km (0.064 R)
• M20: 16,465,190 km (0.086 R)
• M21: 17,598,394 km (0.037 R)
• M22: 17,831,019 km (0.101 R)
• M23: 18,065,738 km (0.049 R)
• M24: 18,701,978 km (0.025 R)
• M25: 19,270,599 km (0.051 R)
• M26: 20,442,549 km (0.058 R)
• M27: 20,958,961 km (0.046 R)
• M28: 22,743,364 km (0.025 R)
• M29: 23,672,367 km (0.095 R)
• M30: 29,129,697 km (0.09 R)
• M31: 32,032,943 km (0.101 R)
• M32: 38,405,962 km (0.109 R)
• M33: 41,066,111 km (0.042 R)
• M34: 44,417,403 km (0.091 R)
• M35: 50,244,090 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.9

Radius: 4.1

Gravity: 45.74 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.42 AU - 8.64 AU

Year: 15174 Days

Day: 16.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,852,908 km

• M1: 52,060 km (0.117 R)
• M2: 368,310 km (0.084 R)
• M3: 731,982 km (0.105 R)
• M4: 959,670 km (0.111 R)
• M5: 1,274,125 km (0.085 R)
• M6: 1,463,217 km (0.117 R)
• M7: 2,307,398 km (0.061 R)
• M8: 2,589,090 km (0.039 R)
• M9: 2,750,058 km (0.11 R)
• M10: 3,092,188 km (0.051 R)
• M11: 3,949,982 km (0.103 R)
• M12: 4,817,051 km (0.082 R)
• M13: 5,313,417 km (0.097 R)
• M14: 5,612,015 km (0.105 R)
• M15: 7,050,847 km (0.112 R)
• M16: 9,133,997 km (0.098 R)
• M17: 10,116,107 km (0.081 R)
• M18: 11,106,445 km (0.074 R)
• M19: 12,875,590 km (0.116 R)
• M20: 15,043,711 km (0.083 R)
• M21: 18,101,941 km (0.099 R)
• M22: 19,293,488 km (0.106 R)
• M23: 21,085,221 km (0.054 R)
• M24: 24,482,140 km (0.104 R)
• M25: 27,669,772 km (0.067 R)
• M26: 31,846,544 km (0.109 R)
• M27: 32,335,131 km (0.098 R)
• M28: 32,581,219 km (0.047 R)
• M29: 33,202,051 km (0.115 R)
• M30: 38,317,400 km (0.099 R)
• M31: 39,427,865 km (0.047 R)
• M32: 47,173,445 km (0.099 R)
• M33: 48,127,430 km (0.115 R)
• M34: 49,256,745 km (0.108 R)
• M35: 49,909,889 km (0.1 R)
• M36: 54,296,846 km (0.071 R)
• M37: 59,301,194 km (0.072 R)
• M38: 64,994,590 km (0.102 R)
• M39: 65,583,258 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793.2

Radius: 5.2

Gravity: 29.33 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 8.23 AU - 8.89 AU

Year: 16701 Days

Day: 16.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,852,908 km

• M1: 64,776 km (0.115 R)
• M2: 333,454 km (0.078 R)
• M3: 849,716 km (0.1 R)
• M4: 1,184,067 km (0.095 R)
• M5: 2,678,550 km (0.077 R)
• M6: 3,339,922 km (0.069 R)
• M7: 3,738,301 km (0.096 R)
• M8: 4,493,920 km (0.106 R)
• M9: 4,837,098 km (0.117 R)
• M10: 6,865,495 km (0.06 R)
• M11: 8,240,748 km (0.119 R)
• M12: 13,663,073 km (0.116 R)
• M13: 15,431,469 km (0.075 R)
• M14: 18,019,064 km (0.115 R)
• M15: 19,148,228 km (0.114 R)
• M16: 23,420,444 km (0.11 R)
• M17: 24,137,467 km (0.061 R)
• M18: 24,449,229 km (0.092 R)
• M19: 24,869,000 km (0.068 R)
• M20: 28,633,631 km (0.115 R)
• M21: 30,168,056 km (0.115 R)
• M22: 31,016,575 km (0.068 R)
• M23: 35,231,795 km (0.047 R)
• M24: 37,545,326 km (0.035 R)
• M25: 38,810,176 km (0.088 R)
• M26: 41,128,494 km (0.111 R)
• M27: 49,298,333 km (0.09 R)
• M28: 52,708,267 km (0.111 R)
• M29: 54,115,235 km (0.061 R)
• M30: 62,303,025 km (0.038 R)
• M31: 68,750,394 km (0.106 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 17,430 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit