🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.6 AU - 0.72 AU

Year: 352 Days

Day: 27.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 42.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,823,811 km

• M1: 343,477 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.2

Radius: 8.2

Gravity: 13.54 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.95 AU - 1.35 AU

Year: 809 Days

Day: 9.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,823,811 km

• M1: 102,175 km (0.084 R)
• M2: 373,396 km (0.067 R)
• M3: 717,023 km (0.075 R)
• M4: 1,026,989 km (0.078 R)
• M5: 1,314,068 km (0.102 R)
• M6: 2,305,303 km (0.095 R)
• M7: 2,781,024 km (0.09 R)
• M8: 3,088,897 km (0.078 R)
• M9: 3,491,166 km (0.114 R)
• M10: 3,850,350 km (0.108 R)
• M11: 4,283,585 km (0.119 R)
• M12: 6,050,635 km (0.096 R)
• M13: 6,979,040 km (0.068 R)
• M14: 7,332,689 km (0.107 R)
• M15: 7,797,789 km (0.106 R)
• M16: 8,308,367 km (0.118 R)
• M17: 8,652,142 km (0.108 R)
• M18: 9,311,570 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.8

Radius: 12.5

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.33 AU - 1.39 AU

Year: 1040 Days

Day: 12.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,823,811 km

• M1: 155,432 km (0.044 R)
• M2: 611,107 km (0.1 R)
• M3: 1,195,885 km (0.035 R)
• M4: 1,605,634 km (0.054 R)
• M5: 2,597,468 km (0.086 R)
• M6: 3,131,083 km (0.059 R)
• M7: 3,659,463 km (0.026 R)
• M8: 4,195,472 km (0.097 R)
• M9: 4,636,188 km (0.114 R)
• M10: 5,549,333 km (0.087 R)
• M11: 6,625,241 km (0.109 R)
• M12: 7,424,991 km (0.084 R)
• M13: 7,887,697 km (0.066 R)
• M14: 9,452,192 km (0.098 R)
• M15: 10,058,362 km (0.055 R)
• M16: 10,885,040 km (0.049 R)

Asteroid Belt

Center: 1.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.4

Radius: 11.7

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.01 AU - 2.37 AU

Year: 2126 Days

Day: 10.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,823,811 km

• M1: 145,708 km (0.117 R)
• M2: 510,278 km (0.073 R)
• M3: 921,672 km (0.049 R)
• M4: 1,346,530 km (0.075 R)
• M5: 1,712,148 km (0.066 R)
• M6: 2,356,765 km (0.109 R)
• M7: 2,852,532 km (0.08 R)
• M8: 3,535,746 km (0.109 R)
• M9: 4,484,346 km (0.083 R)
• M10: 4,921,471 km (0.109 R)
• M11: 6,102,845 km (0.08 R)
• M12: 7,960,851 km (0.057 R)
• M13: 8,416,975 km (0.117 R)
• M14: 9,248,739 km (0.057 R)
• M15: 11,076,226 km (0.11 R)
• M16: 11,529,957 km (0.086 R)
• M17: 12,394,333 km (0.044 R)
• M18: 13,216,972 km (0.066 R)
• M19: 13,901,083 km (0.117 R)
• M20: 14,474,192 km (0.086 R)
• M21: 15,108,936 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505

Radius: 13.4

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.19 AU - 3.39 AU

Year: 3915 Days

Day: 10.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,823,811 km

• M1: 170,841 km (0.075 R)
• M2: 619,485 km (0.117 R)
• M3: 1,213,388 km (0.036 R)
• M4: 2,376,811 km (0.093 R)
• M5: 2,973,856 km (0.078 R)
• M6: 3,809,360 km (0.086 R)
• M7: 4,294,057 km (0.113 R)
• M8: 5,261,208 km (0.047 R)
• M9: 5,702,820 km (0.049 R)
• M10: 6,455,447 km (0.056 R)
• M11: 7,116,969 km (0.108 R)
• M12: 8,365,812 km (0.041 R)
• M13: 8,861,280 km (0.118 R)
• M14: 11,084,005 km (0.063 R)
• M15: 12,302,480 km (0.108 R)
• M16: 15,737,696 km (0.071 R)
• M17: 16,659,817 km (0.106 R)
• M18: 17,964,311 km (0.113 R)
• M19: 19,766,815 km (0.058 R)
• M20: 22,624,584 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.1

Radius: 10.1

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.12 AU - 4.88 AU

Year: 5248 Days

Day: 6.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,823,811 km

• M1: 125,662 km (0.061 R)
• M2: 520,601 km (0.076 R)
• M3: 1,149,061 km (0.084 R)
• M4: 2,053,979 km (0.117 R)
• M5: 2,390,424 km (0.11 R)
• M6: 2,763,671 km (0.042 R)
• M7: 6,544,907 km (0.033 R)
• M8: 7,030,053 km (0.113 R)
• M9: 8,004,084 km (0.086 R)
• M10: 8,594,846 km (0.066 R)
• M11: 9,980,871 km (0.111 R)
• M12: 10,379,848 km (0.091 R)
• M13: 11,640,958 km (0.056 R)
• M14: 15,236,842 km (0.103 R)
• M15: 15,606,349 km (0.114 R)
• M16: 16,035,845 km (0.069 R)
• M17: 18,125,727 km (0.055 R)
• M18: 20,391,087 km (0.043 R)
• M19: 21,492,726 km (0.031 R)
• M20: 22,907,772 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.2

Radius: 8.8

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.97 AU - 4.97 AU

Year: 7268 Days

Day: 11.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,823,811 km

• M1: 109,954 km (0.119 R)
• M2: 531,372 km (0.117 R)
• M3: 1,159,832 km (0.102 R)
• M4: 1,508,695 km (0.101 R)
• M5: 2,109,629 km (0.11 R)
• M6: 2,422,289 km (0.102 R)
• M7: 2,709,666 km (0.072 R)
• M8: 3,643,007 km (0.097 R)
• M9: 5,561,151 km (0.12 R)
• M10: 7,164,242 km (0.109 R)
• M11: 7,761,138 km (0.114 R)
• M12: 10,579,262 km (0.113 R)
• M13: 11,958,255 km (0.112 R)
• M14: 12,478,557 km (0.045 R)
• M15: 13,508,837 km (0.116 R)
• M16: 13,902,429 km (0.106 R)
• M17: 15,068,994 km (0.095 R)
• M18: 15,370,732 km (0.101 R)
• M19: 19,955,458 km (0.047 R)
• M20: 20,539,937 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.3

Radius: 14.2

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.21 AU - 6.63 AU

Year: 8278 Days

Day: 5.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,823,811 km

• M1: 176,675 km (0.112 R)
• M2: 680,670 km (0.11 R)
• M3: 1,247,945 km (0.045 R)
• M4: 1,807,441 km (0.035 R)
• M5: 2,551,691 km (0.099 R)
• M6: 3,318,530 km (0.1 R)
• M7: 5,165,764 km (0.072 R)
• M8: 6,992,354 km (0.114 R)
• M9: 7,623,956 km (0.025 R)
• M10: 9,750,490 km (0.101 R)
• M11: 10,828,941 km (0.103 R)
• M12: 11,372,131 km (0.103 R)
• M13: 11,933,572 km (0.109 R)
• M14: 13,111,954 km (0.107 R)
• M15: 14,543,755 km (0.039 R)
• M16: 15,023,217 km (0.088 R)
• M17: 16,332,497 km (0.099 R)
• M18: 17,313,410 km (0.11 R)
• M19: 17,784,494 km (0.098 R)
• M20: 18,893,313 km (0.085 R)
• M21: 21,711,289 km (0.109 R)
• M22: 23,058,417 km (0.083 R)
• M23: 28,353,434 km (0.119 R)
• M24: 29,292,609 km (0.093 R)
• M25: 32,133,623 km (0.059 R)
• M26: 33,777,404 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70

Radius: 12.1

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.03 AU - 6.65 AU

Year: 9258 Days

Day: 6.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,823,811 km

• M1: 219,011 km (0.108 R)
• M2: 762,052 km (0.113 R)
• M3: 2,063,703 km (0.068 R)
• M4: 3,609,946 km (0.06 R)
• M5: 5,188,054 km (0.084 R)
• M6: 7,876,627 km (0.104 R)
• M7: 8,272,164 km (0.1 R)
• M8: 10,891,623 km (0.118 R)
• M9: 15,973,761 km (0.086 R)
• M10: 17,042,638 km (0.07 R)
• M11: 19,681,245 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.1

Radius: 7.7

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.68 AU - 7.34 AU

Year: 9665 Days

Day: 22.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 92 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,823,811 km

• M1: 97,687 km (0.078 R)
• M2: 421,866 km (0.076 R)
• M3: 855,101 km (0.107 R)
• M4: 1,345,034 km (0.111 R)
• M5: 1,762,712 km (0.051 R)
• M6: 2,150,619 km (0.069 R)
• M7: 3,828,808 km (0.116 R)
• M8: 4,455,473 km (0.084 R)
• M9: 6,040,014 km (0.119 R)
• M10: 6,403,836 km (0.078 R)
• M11: 7,285,267 km (0.102 R)
• M12: 12,775,509 km (0.116 R)
• M13: 13,542,646 km (0.107 R)
• M14: 16,406,847 km (0.051 R)
• M15: 17,644,321 km (0.094 R)
• M16: 19,579,669 km (0.098 R)
• M17: 20,895,980 km (0.053 R)
• M18: 21,728,941 km (0.116 R)
• M19: 24,443,394 km (0.056 R)
• M20: 25,367,909 km (0.106 R)
• M21: 25,968,246 km (0.116 R)
• M22: 26,665,970 km (0.1 R)
• M23: 29,299,940 km (0.099 R)
• M24: 31,214,344 km (0.104 R)
• M25: 31,508,453 km (0.078 R)
• M26: 34,657,638 km (0.04 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 10,986 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit