🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.95 AU - 1.11 AU

Year: 378 Days

Day: 21.4 Hours

Environment

Temp: 38 °C

Axial Tilt: 36.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.64 AU - 3.98 AU

Year: 2178 Days

Day: 29 Hours

Environment

Temp: -104 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.41 AU - 4.33 AU

Year: 2753 Days

Day: 23.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.6

Radius: 9.4

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.32 AU - 7.12 AU

Year: 4947 Days

Day: 14.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 173.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,745,905 km

• M1: 118,332 km (0.094 R)
• M2: 471,682 km (0.1 R)
• M3: 854,503 km (0.105 R)
• M4: 1,378,395 km (0.113 R)
• M5: 1,947,764 km (0.104 R)
• M6: 2,382,496 km (0.099 R)
• M7: 2,790,449 km (0.033 R)
• M8: 3,345,308 km (0.078 R)
• M9: 3,791,708 km (0.069 R)
• M10: 5,070,021 km (0.075 R)
• M11: 5,778,068 km (0.108 R)
• M12: 6,140,544 km (0.089 R)
• M13: 7,045,910 km (0.066 R)
• M14: 8,490,278 km (0.064 R)
• M15: 9,160,326 km (0.082 R)
• M16: 9,993,287 km (0.053 R)
• M17: 10,875,915 km (0.076 R)
• M18: 11,905,896 km (0.08 R)
• M19: 12,345,564 km (0.11 R)
• M20: 12,644,610 km (0.103 R)
• M21: 12,948,444 km (0.117 R)
• M22: 13,309,124 km (0.104 R)
• M23: 14,763,814 km (0.104 R)
• M24: 15,328,546 km (0.054 R)
• M25: 16,321,576 km (0.032 R)
• M26: 16,682,107 km (0.094 R)
• M27: 17,356,794 km (0.057 R)
• M28: 19,692,914 km (0.106 R)
• M29: 20,795,600 km (0.108 R)
• M30: 24,272,404 km (0.117 R)
• M31: 26,518,018 km (0.09 R)
• M32: 28,376,921 km (0.038 R)
• M33: 29,073,897 km (0.114 R)
• M34: 29,693,233 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.8

Radius: 12.3

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.5 AU - 6.16 AU

Year: 5091 Days

Day: 7.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,745,905 km

• M1: 153,039 km (0.095 R)
• M2: 640,578 km (0.063 R)
• M3: 1,031,627 km (0.084 R)
• M4: 1,680,433 km (0.089 R)
• M5: 2,360,654 km (0.117 R)
• M6: 2,865,996 km (0.055 R)
• M7: 3,599,026 km (0.059 R)
• M8: 5,053,266 km (0.098 R)
• M9: 6,239,877 km (0.061 R)
• M10: 6,745,218 km (0.105 R)
• M11: 7,374,577 km (0.093 R)
• M12: 8,008,572 km (0.087 R)
• M13: 8,678,472 km (0.09 R)
• M14: 9,158,232 km (0.104 R)
• M15: 11,170,623 km (0.107 R)
• M16: 13,028,479 km (0.07 R)
• M17: 13,906,020 km (0.097 R)
• M18: 17,580,293 km (0.058 R)
• M19: 18,834,671 km (0.057 R)
• M20: 20,469,177 km (0.076 R)
• M21: 23,660,848 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.5

Radius: 10.8

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.42 AU - 7.82 AU

Year: 6871 Days

Day: 9.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,745,905 km

• M1: 135,386 km (0.092 R)
• M2: 705,354 km (0.053 R)
• M3: 1,602,492 km (0.115 R)
• M4: 2,534,487 km (0.113 R)
• M5: 3,270,060 km (0.065 R)
• M6: 4,041,087 km (0.078 R)
• M7: 4,403,114 km (0.118 R)
• M8: 4,843,381 km (0.113 R)
• M9: 5,404,373 km (0.096 R)
• M10: 7,696,362 km (0.107 R)
• M11: 14,571,431 km (0.118 R)
• M12: 15,615,475 km (0.114 R)
• M13: 16,059,481 km (0.1 R)
• M14: 29,135,980 km (0.114 R)
• M15: 33,544,480 km (0.041 R)
• M16: 36,681,547 km (0.109 R)
• M17: 37,354,140 km (0.106 R)
• M18: 38,378,436 km (0.04 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.7

Radius: 11.7

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 8.75 AU - 12.47 AU

Year: 12499 Days

Day: 7.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,745,905 km

• M1: 145,559 km (0.102 R)
• M2: 920,775 km (0.111 R)
• M3: 1,378,694 km (0.101 R)
• M4: 1,788,592 km (0.086 R)
• M5: 2,357,812 km (0.108 R)
• M6: 3,335,883 km (0.099 R)
• M7: 3,752,513 km (0.027 R)
• M8: 4,292,860 km (0.116 R)
• M9: 6,464,872 km (0.1 R)
• M10: 8,038,193 km (0.069 R)
• M11: 9,136,989 km (0.107 R)
• M12: 9,644,874 km (0.096 R)
• M13: 10,117,902 km (0.061 R)
• M14: 11,340,117 km (0.112 R)
• M15: 13,225,798 km (0.098 R)
• M16: 13,613,705 km (0.09 R)
• M17: 16,845,019 km (0.103 R)
• M18: 18,238,075 km (0.096 R)
• M19: 21,164,508 km (0.095 R)
• M20: 24,487,227 km (0.086 R)
• M21: 25,668,003 km (0.115 R)
• M22: 29,110,848 km (0.083 R)
• M23: 31,569,938 km (0.092 R)
• M24: 38,843,237 km (0.12 R)
• M25: 40,312,587 km (0.112 R)
• M26: 40,856,076 km (0.081 R)
• M27: 42,235,967 km (0.059 R)
• M28: 52,454,399 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.9

Radius: 3.2

Gravity: 42.86 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 12.97 AU - 20.11 AU

Year: 24327 Days

Day: 19.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 74,745,905 km

• M1: 39,793 km (0.075 R)
• M2: 147,653 km (0.083 R)
• M3: 286,929 km (0.114 R)
• M4: 879,486 km (0.039 R)
• M5: 1,111,811 km (0.118 R)
• M6: 1,627,625 km (0.094 R)
• M7: 1,957,638 km (0.077 R)
• M8: 2,510,851 km (0.069 R)
• M9: 2,749,010 km (0.097 R)
• M10: 3,583,767 km (0.093 R)
• M11: 4,303,033 km (0.093 R)
• M12: 4,437,222 km (0.044 R)
• M13: 4,820,941 km (0.096 R)
• M14: 5,076,454 km (0.107 R)
• M15: 5,535,121 km (0.096 R)
• M16: 5,694,144 km (0.118 R)
• M17: 6,622,997 km (0.101 R)
• M18: 8,405,456 km (0.107 R)
• M19: 9,045,884 km (0.101 R)
• M20: 9,266,391 km (0.085 R)
• M21: 11,479,542 km (0.084 R)
• M22: 11,673,122 km (0.088 R)
• M23: 11,803,272 km (0.117 R)
• M24: 14,094,513 km (0.03 R)
• M25: 15,150,076 km (0.102 R)
• M26: 15,382,850 km (0.116 R)
• M27: 16,830,359 km (0.119 R)
• M28: 21,811,669 km (0.057 R)
• M29: 27,232,348 km (0.118 R)
• M30: 30,558,656 km (0.055 R)
• M31: 36,316,229 km (0.099 R)
• M32: 37,718,410 km (0.119 R)
• M33: 41,230,370 km (0.111 R)
• M34: 45,434,669 km (0.106 R)
• M35: 45,756,902 km (0.114 R)
• M36: 48,558,571 km (0.087 R)
• M37: 52,705,275 km (0.073 R)
• M38: 56,708,214 km (0.116 R)
• M39: 56,894,763 km (0.056 R)
• M40: 57,269,206 km (0.108 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 18,993 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit