🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 11.5

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.76 AU - 0.88 AU

Year: 513 Days

Day: 7.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,453,838 km

• M1: 143,016 km (0.048 R)
• M2: 633,098 km (0.068 R)
• M3: 1,054,067 km (0.026 R)
• M4: 1,462,768 km (0.1 R)
• M5: 1,978,432 km (0.099 R)
• M6: 2,683,187 km (0.111 R)
• M7: 3,168,184 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 11

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.84 AU - 0.88 AU

Year: 551 Days

Day: 10.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,453,838 km

• M1: 136,732 km (0.119 R)
• M2: 555,756 km (0.086 R)
• M3: 1,008,140 km (0.104 R)
• M4: 1,554,172 km (0.091 R)
• M5: 2,272,092 km (0.12 R)
• M6: 2,883,200 km (0.12 R)
• M7: 3,450,924 km (0.113 R)
• M8: 3,914,527 km (0.106 R)
• M9: 5,577,607 km (0.104 R)
• M10: 6,181,683 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.3

Radius: 9.5

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.87 AU - 0.95 AU

Year: 599 Days

Day: 14.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,453,838 km

• M1: 118,482 km (0.097 R)
• M2: 439,519 km (0.119 R)
• M3: 776,263 km (0.094 R)
• M4: 1,429,408 km (0.078 R)
• M5: 1,760,019 km (0.09 R)
• M6: 2,339,412 km (0.104 R)
• M7: 2,740,932 km (0.119 R)
• M8: 3,063,465 km (0.118 R)
• M9: 4,009,971 km (0.108 R)
• M10: 5,285,143 km (0.111 R)
• M11: 5,822,798 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703

Radius: 11.4

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.34 AU - 1.52 AU

Year: 1180 Days

Day: 12.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,453,838 km

• M1: 141,819 km (0.075 R)
• M2: 609,611 km (0.116 R)
• M3: 993,180 km (0.112 R)
• M4: 1,544,149 km (0.106 R)
• M5: 2,574,729 km (0.107 R)
• M6: 3,140,359 km (0.068 R)
• M7: 3,629,244 km (0.116 R)
• M8: 4,083,573 km (0.04 R)
• M9: 4,449,190 km (0.106 R)
• M10: 4,874,647 km (0.073 R)
• M11: 5,807,988 km (0.1 R)
• M12: 6,181,683 km (0.102 R)
• M13: 6,618,359 km (0.087 R)
• M14: 7,224,380 km (0.086 R)
• M15: 7,683,496 km (0.092 R)
• M16: 8,974,526 km (0.084 R)
• M17: 9,994,933 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.3

Radius: 9.1

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.88 AU - 2.08 AU

Year: 1923 Days

Day: 11.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,453,838 km

• M1: 113,096 km (0.116 R)
• M2: 401,371 km (0.12 R)
• M3: 871,856 km (0.093 R)
• M4: 1,160,431 km (0.08 R)
• M5: 1,826,141 km (0.078 R)
• M6: 2,333,727 km (0.097 R)
• M7: 2,700,391 km (0.055 R)
• M8: 3,179,104 km (0.036 R)
• M9: 3,502,385 km (0.087 R)
• M10: 4,143,562 km (0.094 R)
• M11: 4,781,896 km (0.102 R)
• M12: 5,187,007 km (0.087 R)
• M13: 5,951,302 km (0.034 R)
• M14: 6,277,276 km (0.098 R)
• M15: 6,990,708 km (0.079 R)
• M16: 8,231,922 km (0.055 R)
• M17: 9,116,793 km (0.075 R)
• M18: 10,393,611 km (0.094 R)
• M19: 12,564,576 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.2

Radius: 13.6

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.26 AU - 3.1 AU

Year: 3028 Days

Day: 10.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,453,838 km

• M1: 169,943 km (0.115 R)
• M2: 618,438 km (0.083 R)
• M3: 1,198,578 km (0.086 R)
• M4: 1,634,955 km (0.117 R)
• M5: 2,277,328 km (0.084 R)
• M6: 3,643,606 km (0.032 R)
• M7: 4,609,709 km (0.092 R)
• M8: 5,606,180 km (0.082 R)
• M9: 7,428,432 km (0.108 R)
• M10: 8,299,989 km (0.06 R)
• M11: 8,869,508 km (0.08 R)
• M12: 9,503,205 km (0.081 R)
• M13: 10,530,643 km (0.108 R)
• M14: 11,241,682 km (0.045 R)
• M15: 12,118,774 km (0.112 R)
• M16: 13,279,055 km (0.111 R)
• M17: 15,498,938 km (0.062 R)
• M18: 16,921,464 km (0.095 R)
• M19: 17,433,687 km (0.083 R)
• M20: 18,850,528 km (0.052 R)
• M21: 21,052,310 km (0.112 R)
• M22: 22,795,424 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.8

Radius: 8

Gravity: 10.79 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4.71 AU - 5.45 AU

Year: 7903 Days

Day: 12.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,453,838 km

• M1: 99,483 km (0.064 R)
• M2: 442,361 km (0.082 R)
• M3: 709,692 km (0.109 R)
• M4: 2,209,561 km (0.119 R)
• M5: 2,782,221 km (0.072 R)
• M6: 3,663,053 km (0.102 R)
• M7: 4,247,383 km (0.028 R)
• M8: 4,520,249 km (0.067 R)
• M9: 4,804,784 km (0.049 R)
• M10: 8,560,738 km (0.106 R)
• M11: 9,868,373 km (0.098 R)
• M12: 12,262,687 km (0.051 R)
• M13: 12,761,746 km (0.062 R)
• M14: 13,506,444 km (0.088 R)
• M15: 14,708,163 km (0.062 R)
• M16: 16,242,439 km (0.041 R)
• M17: 18,739,676 km (0.088 R)
• M18: 19,327,596 km (0.098 R)
• M19: 19,626,044 km (0.081 R)
• M20: 21,323,082 km (0.085 R)
• M21: 22,370,716 km (0.065 R)
• M22: 23,283,562 km (0.116 R)
• M23: 34,144,667 km (0.087 R)
• M24: 36,591,490 km (0.111 R)
• M25: 38,090,909 km (0.086 R)
• M26: 38,442,763 km (0.046 R)
• M27: 38,915,193 km (0.062 R)
• M28: 40,721,139 km (0.052 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.8

Radius: 8.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 5.28 AU - 5.62 AU

Year: 8782 Days

Day: 6.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,453,838 km

• M1: 109,805 km (0.081 R)
• M2: 635,193 km (0.07 R)
• M3: 1,117,197 km (0.106 R)
• M4: 1,748,799 km (0.113 R)
• M5: 2,191,160 km (0.084 R)
• M6: 2,742,727 km (0.067 R)
• M7: 4,050,213 km (0.062 R)
• M8: 4,340,283 km (0.1 R)
• M9: 9,160,027 km (0.108 R)
• M10: 9,833,218 km (0.076 R)
• M11: 10,270,492 km (0.096 R)
• M12: 11,184,086 km (0.05 R)
• M13: 12,150,638 km (0.11 R)
• M14: 12,859,882 km (0.1 R)
• M15: 14,527,898 km (0.098 R)
• M16: 14,980,880 km (0.046 R)
• M17: 15,736,948 km (0.053 R)
• M18: 16,034,349 km (0.059 R)
• M19: 16,949,439 km (0.051 R)
• M20: 17,451,340 km (0.116 R)
• M21: 18,092,815 km (0.118 R)
• M22: 19,084,350 km (0.111 R)
• M23: 22,425,768 km (0.116 R)
• M24: 24,751,267 km (0.11 R)
• M25: 26,138,189 km (0.089 R)
• M26: 28,008,761 km (0.091 R)
• M27: 29,155,279 km (0.05 R)
• M28: 31,447,268 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 919.6

Radius: 3.9

Gravity: 60.46 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.99 AU - 6.25 AU

Year: 10451 Days

Day: 23.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 54,453,838 km

• M1: 48,470 km (0.11 R)
• M2: 173,683 km (0.112 R)
• M3: 335,099 km (0.117 R)
• M4: 676,482 km (0.086 R)
• M5: 1,119,291 km (0.066 R)
• M6: 1,933,403 km (0.084 R)
• M7: 2,205,821 km (0.093 R)
• M8: 2,401,195 km (0.086 R)
• M9: 2,871,830 km (0.042 R)
• M10: 6,065,296 km (0.08 R)
• M11: 6,410,119 km (0.08 R)
• M12: 8,056,893 km (0.078 R)
• M13: 9,050,970 km (0.116 R)
• M14: 10,608,883 km (0.116 R)
• M15: 10,829,240 km (0.11 R)
• M16: 11,624,652 km (0.083 R)
• M17: 13,847,676 km (0.102 R)
• M18: 14,177,241 km (0.113 R)
• M19: 15,127,935 km (0.11 R)
• M20: 17,535,414 km (0.091 R)
• M21: 17,999,017 km (0.102 R)
• M22: 19,031,243 km (0.12 R)
• M23: 20,610,099 km (0.039 R)
• M24: 22,094,858 km (0.061 R)
• M25: 23,000,822 km (0.106 R)
• M26: 23,184,828 km (0.112 R)
• M27: 23,931,171 km (0.088 R)
• M28: 24,501,289 km (0.083 R)
• M29: 25,373,295 km (0.074 R)
• M30: 27,282,014 km (0.11 R)
• M31: 29,609,009 km (0.105 R)
• M32: 38,015,961 km (0.069 R)
• M33: 38,922,075 km (0.113 R)
• M34: 45,236,751 km (0.115 R)
• M35: 45,381,112 km (0.06 R)
• M36: 48,333,426 km (0.1 R)
• M37: 49,856,482 km (0.089 R)
• M38: 53,641,757 km (0.08 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 10,884 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit