🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.6

Radius: 11.9

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.52 AU - 0.86 AU

Year: 382 Days

Day: 14 Hours

Environment

Temp: -166 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,340,249 km

• M1: 147,952 km (0.093 R)
• M2: 521,797 km (0.077 R)
• M3: 970,142 km (0.059 R)
• M4: 1,355,806 km (0.085 R)
• M5: 1,846,487 km (0.114 R)
• M6: 2,269,250 km (0.087 R)
• M7: 2,698,446 km (0.089 R)
• M8: 3,149,484 km (0.1 R)
• M9: 3,796,345 km (0.034 R)
• M10: 4,231,226 km (0.051 R)
• M11: 4,614,197 km (0.086 R)
• M12: 5,140,781 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.6

Radius: 11.4

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.72 AU - 0.74 AU

Year: 416 Days

Day: 9.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,340,249 km

• M1: 141,819 km (0.105 R)
• M2: 1,009,337 km (0.031 R)
• M3: 2,059,514 km (0.098 R)
• M4: 2,531,495 km (0.072 R)
• M5: 3,033,695 km (0.104 R)
• M6: 3,453,467 km (0.049 R)
• M7: 3,985,886 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.1

Radius: 14.5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.99 AU - 1.03 AU

Year: 677 Days

Day: 6.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 179.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,340,249 km

• M1: 180,265 km (0.037 R)
• M2: 729,439 km (0.05 R)
• M3: 1,238,371 km (0.103 R)
• M4: 1,694,944 km (0.062 R)
• M5: 2,161,988 km (0.099 R)
• M6: 2,651,024 km (0.118 R)
• M7: 3,235,952 km (0.113 R)
• M8: 3,751,017 km (0.116 R)
• M9: 4,295,104 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.2

Radius: 13.2

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.99 AU - 1.19 AU

Year: 759 Days

Day: 6.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 38,340,249 km

• M1: 165,605 km (0.043 R)
• M2: 654,640 km (0.074 R)
• M3: 1,127,220 km (0.107 R)
• M4: 2,007,753 km (0.074 R)
• M5: 2,792,843 km (0.078 R)
• M6: 4,049,465 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.8

Radius: 9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.43 AU - 1.53 AU

Year: 1201 Days

Day: 8 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,340,249 km

• M1: 111,899 km (0.081 R)
• M2: 429,495 km (0.082 R)
• M3: 770,279 km (0.092 R)
• M4: 1,091,167 km (0.067 R)
• M5: 1,626,727 km (0.108 R)
• M6: 2,618,412 km (0.05 R)
• M7: 3,416,965 km (0.1 R)
• M8: 3,969,131 km (0.077 R)
• M9: 4,259,051 km (0.065 R)
• M10: 4,712,333 km (0.032 R)
• M11: 6,287,898 km (0.104 R)
• M12: 6,662,042 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.8

Radius: 13.7

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.89 AU - 4.41 AU

Year: 4650 Days

Day: 11.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,340,249 km

• M1: 170,392 km (0.071 R)
• M2: 739,612 km (0.082 R)
• M3: 1,265,149 km (0.097 R)
• M4: 1,732,194 km (0.075 R)
• M5: 2,904,443 km (0.11 R)
• M6: 3,550,705 km (0.093 R)
• M7: 4,408,649 km (0.116 R)
• M8: 5,593,764 km (0.035 R)
• M9: 6,052,580 km (0.094 R)
• M10: 6,505,712 km (0.083 R)
• M11: 8,291,911 km (0.058 R)
• M12: 8,890,601 km (0.109 R)
• M13: 11,902,605 km (0.072 R)
• M14: 12,714,173 km (0.053 R)
• M15: 13,511,380 km (0.083 R)
• M16: 14,288,841 km (0.074 R)
• M17: 15,594,680 km (0.082 R)
• M18: 16,742,395 km (0.112 R)
• M19: 17,518,210 km (0.057 R)
• M20: 19,335,076 km (0.056 R)
• M21: 23,488,212 km (0.117 R)
• M22: 24,612,739 km (0.09 R)
• M23: 26,888,123 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 13.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.03 AU - 5.15 AU

Year: 6558 Days

Day: 5.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,340,249 km

• M1: 170,542 km (0.108 R)
• M2: 637,137 km (0.063 R)
• M3: 1,491,640 km (0.107 R)
• M4: 2,058,616 km (0.062 R)
• M5: 2,635,914 km (0.039 R)
• M6: 3,848,555 km (0.098 R)
• M7: 4,816,902 km (0.108 R)
• M8: 5,684,569 km (0.101 R)
• M9: 6,583,952 km (0.075 R)
• M10: 7,160,352 km (0.115 R)
• M11: 8,878,185 km (0.066 R)
• M12: 9,582,791 km (0.07 R)
• M13: 10,515,833 km (0.109 R)
• M14: 14,802,859 km (0.099 R)
• M15: 15,417,706 km (0.095 R)
• M16: 18,680,286 km (0.111 R)
• M17: 20,285,022 km (0.063 R)
• M18: 21,743,303 km (0.11 R)
• M19: 23,934,463 km (0.041 R)
• M20: 24,611,094 km (0.076 R)
• M21: 25,040,290 km (0.066 R)
• M22: 27,629,829 km (0.056 R)
• M23: 33,231,372 km (0.117 R)
• M24: 34,714,784 km (0.049 R)
• M25: 35,691,359 km (0.08 R)
• M26: 37,359,824 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.9

Radius: 8.6

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.22 AU - 5.26 AU

Year: 7999 Days

Day: 12.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,340,249 km

• M1: 107,411 km (0.045 R)
• M2: 445,951 km (0.086 R)
• M3: 1,384,079 km (0.114 R)
• M4: 4,076,991 km (0.1 R)
• M5: 5,026,189 km (0.03 R)
• M6: 7,652,230 km (0.114 R)
• M7: 10,933,660 km (0.118 R)
• M8: 11,468,472 km (0.112 R)
• M9: 12,961,908 km (0.057 R)
• M10: 14,465,217 km (0.093 R)
• M11: 15,229,063 km (0.096 R)
• M12: 16,268,020 km (0.057 R)
• M13: 18,691,805 km (0.117 R)
• M14: 20,169,383 km (0.064 R)
• M15: 22,881,144 km (0.095 R)
• M16: 26,083,286 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.9

Radius: 4.6

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.92 AU - 9.16 AU

Year: 13807 Days

Day: 18.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,340,249 km

• M1: 57,296 km (0.114 R)
• M2: 211,083 km (0.086 R)
• M3: 613,351 km (0.107 R)
• M4: 1,858,305 km (0.084 R)
• M5: 2,075,970 km (0.103 R)
• M6: 3,407,989 km (0.1 R)
• M7: 3,881,616 km (0.045 R)
• M8: 4,700,515 km (0.063 R)
• M9: 5,165,465 km (0.113 R)
• M10: 5,565,340 km (0.091 R)
• M11: 6,496,288 km (0.039 R)
• M12: 8,534,858 km (0.115 R)
• M13: 8,832,408 km (0.11 R)
• M14: 9,813,321 km (0.093 R)
• M15: 10,377,754 km (0.089 R)
• M16: 11,163,741 km (0.055 R)
• M17: 20,327,059 km (0.066 R)
• M18: 20,629,247 km (0.119 R)
• M19: 21,088,064 km (0.104 R)
• M20: 24,407,341 km (0.091 R)
• M21: 30,751,189 km (0.071 R)
• M22: 36,643,250 km (0.049 R)
• M23: 37,541,885 km (0.028 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: 218 - 16,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit