🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.49 AU - 0.57 AU

Year: 253 Days

Day: 37.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.7

Radius: 14

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 8.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,105,518 km

• M1: 174,132 km (0.083 R)
• M2: 641,027 km (0.078 R)
• M3: 1,345,483 km (0.112 R)
• M4: 2,028,697 km (0.047 R)
• M5: 2,560,068 km (0.043 R)
• M6: 3,058,379 km (0.106 R)
• M7: 3,935,920 km (0.062 R)
• M8: 4,726,246 km (0.054 R)
• M9: 5,299,205 km (0.062 R)
• M10: 5,759,219 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.2

Radius: 13.4

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.23 AU - 1.33 AU

Year: 950 Days

Day: 10.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,105,518 km

• M1: 166,652 km (0.075 R)
• M2: 739,911 km (0.106 R)
• M3: 1,205,310 km (0.065 R)
• M4: 2,097,213 km (0.109 R)
• M5: 2,654,913 km (0.103 R)
• M6: 3,117,769 km (0.12 R)
• M7: 4,250,076 km (0.082 R)
• M8: 5,026,638 km (0.06 R)
• M9: 5,490,391 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.7

Radius: 8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.67 AU - 2.45 AU

Year: 1940 Days

Day: 5.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,105,518 km

• M1: 99,483 km (0.099 R)
• M2: 363,224 km (0.091 R)
• M3: 676,930 km (0.101 R)
• M4: 1,663,678 km (0.062 R)
• M5: 1,928,616 km (0.118 R)
• M6: 3,190,025 km (0.066 R)
• M7: 3,534,399 km (0.085 R)
• M8: 4,317,245 km (0.092 R)
• M9: 5,277,663 km (0.102 R)
• M10: 7,643,105 km (0.079 R)
• M11: 8,051,806 km (0.077 R)
• M12: 8,817,897 km (0.12 R)
• M13: 9,105,274 km (0.071 R)
• M14: 9,936,590 km (0.116 R)
• M15: 11,521,280 km (0.088 R)
• M16: 12,294,551 km (0.063 R)
• M17: 13,730,242 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.4

Radius: 9.6

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.21 AU - 2.31 AU

Year: 2229 Days

Day: 12.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,105,518 km

• M1: 120,127 km (0.03 R)
• M2: 534,214 km (0.101 R)
• M3: 1,022,053 km (0.044 R)
• M4: 1,606,681 km (0.027 R)
• M5: 2,016,131 km (0.091 R)
• M6: 2,820,069 km (0.117 R)
• M7: 3,662,455 km (0.11 R)
• M8: 4,984,302 km (0.119 R)
• M9: 5,342,290 km (0.117 R)
• M10: 5,813,972 km (0.076 R)
• M11: 6,468,612 km (0.119 R)
• M12: 7,775,499 km (0.069 R)
• M13: 8,475,767 km (0.105 R)
• M14: 9,384,274 km (0.116 R)
• M15: 10,320,458 km (0.049 R)
• M16: 12,057,140 km (0.106 R)
• M17: 14,201,176 km (0.073 R)
• M18: 15,061,364 km (0.076 R)
• M19: 15,574,934 km (0.081 R)
• M20: 15,907,789 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.7

Radius: 13.1

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.48 AU - 2.62 AU

Year: 2671 Days

Day: 7.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,105,518 km

• M1: 162,912 km (0.118 R)
• M2: 578,196 km (0.109 R)
• M3: 1,030,131 km (0.065 R)
• M4: 2,205,970 km (0.1 R)
• M5: 2,831,888 km (0.058 R)
• M6: 3,737,254 km (0.111 R)
• M7: 4,217,912 km (0.075 R)
• M8: 4,761,700 km (0.076 R)
• M9: 5,889,219 km (0.085 R)
• M10: 6,408,623 km (0.085 R)
• M11: 6,958,695 km (0.092 R)
• M12: 8,537,550 km (0.046 R)
• M13: 9,238,865 km (0.118 R)
• M14: 10,159,939 km (0.11 R)
• M15: 10,680,839 km (0.055 R)
• M16: 11,258,586 km (0.069 R)
• M17: 12,309,511 km (0.057 R)
• M18: 14,052,626 km (0.067 R)
• M19: 16,608,804 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.2

Radius: 14.7

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.63 AU - 4.35 AU

Year: 4277 Days

Day: 14.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,105,518 km

• M1: 182,958 km (0.117 R)
• M2: 686,505 km (0.066 R)
• M3: 1,577,958 km (0.088 R)
• M4: 2,053,979 km (0.095 R)
• M5: 2,722,831 km (0.111 R)
• M6: 3,216,953 km (0.072 R)
• M7: 3,998,302 km (0.12 R)
• M8: 4,641,573 km (0.067 R)
• M9: 6,812,388 km (0.096 R)
• M10: 7,310,998 km (0.107 R)
• M11: 7,901,012 km (0.043 R)
• M12: 8,737,264 km (0.051 R)
• M13: 9,364,827 km (0.087 R)
• M14: 10,463,922 km (0.056 R)
• M15: 11,002,774 km (0.101 R)
• M16: 12,001,639 km (0.059 R)
• M17: 14,280,314 km (0.081 R)
• M18: 14,840,707 km (0.077 R)
• M19: 17,925,116 km (0.067 R)
• M20: 18,819,113 km (0.048 R)
• M21: 21,085,820 km (0.099 R)
• M22: 22,014,823 km (0.086 R)
• M23: 23,670,422 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.7

Radius: 8.2

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.02 AU - 4.74 AU

Year: 6013 Days

Day: 7.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,105,518 km

• M1: 103,073 km (0.118 R)
• M2: 426,803 km (0.044 R)
• M3: 859,589 km (0.113 R)
• M4: 1,636,900 km (0.071 R)
• M5: 2,244,866 km (0.1 R)
• M6: 3,670,982 km (0.117 R)
• M7: 4,350,904 km (0.075 R)
• M8: 7,790,309 km (0.069 R)
• M9: 9,176,333 km (0.066 R)
• M10: 10,009,145 km (0.03 R)
• M11: 12,334,344 km (0.094 R)
• M12: 12,666,153 km (0.087 R)
• M13: 12,955,325 km (0.103 R)
• M14: 18,946,122 km (0.056 R)
• M15: 22,749,049 km (0.104 R)
• M16: 23,105,092 km (0.108 R)
• M17: 24,121,909 km (0.102 R)
• M18: 24,417,813 km (0.088 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.3

Radius: 9.6

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.31 AU - 5.99 AU

Year: 8810 Days

Day: 9.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,105,518 km

• M1: 119,379 km (0.087 R)
• M2: 1,325,587 km (0.101 R)
• M3: 1,628,074 km (0.103 R)
• M4: 2,043,208 km (0.059 R)
• M5: 3,110,589 km (0.084 R)
• M6: 3,604,261 km (0.095 R)
• M7: 5,085,131 km (0.031 R)
• M8: 5,703,868 km (0.102 R)
• M9: 7,052,044 km (0.113 R)
• M10: 8,736,366 km (0.114 R)
• M11: 10,829,390 km (0.102 R)
• M12: 13,598,746 km (0.091 R)
• M13: 13,967,355 km (0.099 R)
• M14: 15,048,499 km (0.117 R)
• M15: 16,321,726 km (0.118 R)
• M16: 16,808,518 km (0.059 R)
• M17: 17,304,883 km (0.08 R)
• M18: 17,957,429 km (0.103 R)
• M19: 19,311,589 km (0.074 R)
• M20: 20,172,076 km (0.079 R)
• M21: 20,651,986 km (0.04 R)
• M22: 21,969,195 km (0.097 R)
• M23: 25,879,384 km (0.078 R)
• M24: 27,506,860 km (0.078 R)
• M25: 33,239,151 km (0.116 R)
• M26: 33,909,050 km (0.112 R)
• M27: 34,360,537 km (0.037 R)
• M28: 36,797,187 km (0.104 R)
• M29: 41,110,392 km (0.086 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.1

Radius: 5.2

Gravity: 24.82 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.95 AU - 11.19 AU

Year: 19421 Days

Day: 23.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 74,105,518 km

• M1: 65,524 km (0.119 R)
• M2: 281,244 km (0.101 R)
• M3: 475,272 km (0.042 R)
• M4: 885,769 km (0.095 R)
• M5: 1,489,845 km (0.083 R)
• M6: 1,742,815 km (0.043 R)
• M7: 2,186,074 km (0.086 R)
• M8: 2,582,957 km (0.1 R)
• M9: 2,798,677 km (0.044 R)
• M10: 3,131,532 km (0.119 R)
• M11: 5,589,425 km (0.087 R)
• M12: 6,243,617 km (0.054 R)
• M13: 7,800,931 km (0.084 R)
• M14: 8,304,327 km (0.053 R)
• M15: 10,596,017 km (0.057 R)
• M16: 12,997,961 km (0.074 R)
• M17: 14,214,042 km (0.086 R)
• M18: 15,040,271 km (0.079 R)
• M19: 16,217,905 km (0.12 R)
• M20: 17,796,163 km (0.115 R)
• M21: 19,656,562 km (0.064 R)
• M22: 21,254,566 km (0.106 R)
• M23: 23,140,696 km (0.104 R)
• M24: 23,345,496 km (0.1 R)
• M25: 25,788,579 km (0.094 R)
• M26: 27,470,657 km (0.073 R)
• M27: 28,631,686 km (0.119 R)
• M28: 28,867,752 km (0.086 R)
• M29: 30,311,670 km (0.106 R)
• M30: 30,557,011 km (0.08 R)
• M31: 33,342,673 km (0.106 R)
• M32: 37,973,624 km (0.111 R)
• M33: 38,545,088 km (0.112 R)
• M34: 39,558,913 km (0.099 R)
• M35: 44,105,940 km (0.085 R)
• M36: 48,485,268 km (0.118 R)
• M37: 52,790,845 km (0.101 R)
• M38: 54,763,293 km (0.119 R)
• M39: 56,043,850 km (0.117 R)
• M40: 60,005,052 km (0.106 R)
• M41: 64,350,721 km (0.057 R)
• M42: 68,479,173 km (0.082 R)
• M43: 73,220,528 km (0.052 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 14,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit