🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.58 AU - 0.7 AU

Year: 336 Days

Day: 18.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.3

Radius: 8.6

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.61 AU - 0.85 AU

Year: 409 Days

Day: 8.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,928,310 km

• M1: 106,962 km (0.116 R)
• M2: 458,966 km (0.063 R)
• M3: 883,974 km (0.069 R)
• M4: 1,371,663 km (0.094 R)
• M5: 1,794,426 km (0.089 R)
• M6: 2,091,677 km (0.103 R)
• M7: 2,509,654 km (0.101 R)
• M8: 4,081,927 km (0.112 R)
• M9: 4,401,319 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.9

Radius: 13.4

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.67 AU - 0.85 AU

Year: 435 Days

Day: 10.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,928,310 km

• M1: 166,652 km (0.097 R)
• M2: 712,535 km (0.103 R)
• M3: 1,248,544 km (0.09 R)
• M4: 2,031,539 km (0.114 R)
• M5: 2,557,675 km (0.04 R)
• M6: 3,143,500 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.8

Radius: 11.6

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.86 AU - 1.06 AU

Year: 617 Days

Day: 7.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,928,310 km

• M1: 144,212 km (0.088 R)
• M2: 507,137 km (0.097 R)
• M3: 937,530 km (0.066 R)
• M4: 1,649,616 km (0.067 R)
• M5: 2,126,983 km (0.076 R)
• M6: 2,856,272 km (0.105 R)
• M7: 3,470,371 km (0.097 R)
• M8: 4,125,161 km (0.101 R)
• M9: 4,928,951 km (0.057 R)
• M10: 5,738,724 km (0.06 R)
• M11: 6,346,839 km (0.064 R)
• M12: 7,622,610 km (0.064 R)

Asteroid Belt

Center: 1.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.6

Radius: 10.9

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.71 AU - 1.95 AU

Year: 1624 Days

Day: 12.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,928,310 km

• M1: 135,536 km (0.067 R)
• M2: 529,427 km (0.115 R)
• M3: 1,061,098 km (0.074 R)
• M4: 1,434,494 km (0.094 R)
• M5: 1,887,327 km (0.104 R)
• M6: 2,262,369 km (0.026 R)
• M7: 2,932,118 km (0.104 R)
• M8: 3,510,314 km (0.094 R)
• M9: 4,443,206 km (0.075 R)
• M10: 5,245,649 km (0.116 R)
• M11: 6,311,534 km (0.115 R)
• M12: 7,277,936 km (0.077 R)
• M13: 9,334,608 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.5

Radius: 9.8

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.85 AU - 2.13 AU

Year: 1842 Days

Day: 14.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,928,310 km

• M1: 128,205 km (0.106 R)
• M2: 493,224 km (0.064 R)
• M3: 893,249 km (0.095 R)
• M4: 1,618,499 km (0.08 R)
• M5: 2,920,300 km (0.069 R)
• M6: 3,597,829 km (0.03 R)
• M7: 4,752,724 km (0.116 R)
• M8: 5,195,534 km (0.066 R)
• M9: 5,521,807 km (0.119 R)
• M10: 6,345,493 km (0.108 R)
• M11: 7,163,344 km (0.107 R)
• M12: 8,616,089 km (0.08 R)
• M13: 8,941,914 km (0.091 R)
• M14: 9,309,775 km (0.118 R)
• M15: 9,722,665 km (0.058 R)
• M16: 10,771,196 km (0.117 R)
• M17: 11,655,021 km (0.065 R)
• M18: 12,257,002 km (0.096 R)
• M19: 12,628,005 km (0.048 R)
• M20: 15,726,775 km (0.118 R)
• M21: 16,462,049 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.7

Radius: 8.9

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.25 AU - 5.55 AU

Year: 7115 Days

Day: 11.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,928,310 km

• M1: 110,852 km (0.101 R)
• M2: 452,982 km (0.062 R)
• M3: 1,045,988 km (0.104 R)
• M4: 1,584,690 km (0.119 R)
• M5: 2,869,886 km (0.112 R)
• M6: 3,278,886 km (0.106 R)
• M7: 3,926,645 km (0.116 R)
• M8: 4,349,408 km (0.112 R)
• M9: 4,657,281 km (0.042 R)
• M10: 5,768,943 km (0.062 R)
• M11: 7,514,151 km (0.12 R)
• M12: 9,262,203 km (0.101 R)
• M13: 9,538,959 km (0.118 R)
• M14: 10,157,845 km (0.087 R)
• M15: 10,551,886 km (0.119 R)
• M16: 14,819,763 km (0.101 R)
• M17: 15,391,227 km (0.046 R)
• M18: 16,577,987 km (0.102 R)
• M19: 17,895,645 km (0.087 R)
• M20: 21,453,083 km (0.098 R)
• M21: 22,431,752 km (0.106 R)
• M22: 25,097,287 km (0.104 R)
• M23: 28,255,896 km (0.115 R)
• M24: 33,584,273 km (0.095 R)
• M25: 35,125,580 km (0.096 R)
• M26: 41,513,409 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794

Radius: 8

Gravity: 12.41 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.22 AU - 5.58 AU

Year: 7115 Days

Day: 6.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 65,928,310 km

• M1: 108,608 km (0.11 R)
• M2: 410,197 km (0.047 R)
• M3: 959,521 km (0.066 R)
• M4: 1,303,596 km (0.117 R)
• M5: 1,982,770 km (0.089 R)
• M6: 2,366,190 km (0.095 R)
• M7: 2,960,691 km (0.112 R)
• M8: 3,771,662 km (0.068 R)
• M9: 5,793,477 km (0.069 R)
• M10: 6,869,235 km (0.11 R)
• M11: 7,513,104 km (0.032 R)
• M12: 8,746,240 km (0.106 R)
• M13: 13,079,342 km (0.071 R)
• M14: 13,771,531 km (0.107 R)
• M15: 14,609,578 km (0.076 R)
• M16: 15,417,856 km (0.116 R)
• M17: 15,994,556 km (0.12 R)
• M18: 17,259,406 km (0.083 R)
• M19: 20,442,250 km (0.095 R)
• M20: 21,611,058 km (0.094 R)
• M21: 22,496,079 km (0.101 R)
• M22: 23,071,732 km (0.111 R)
• M23: 25,296,252 km (0.117 R)
• M24: 28,511,110 km (0.058 R)
• M25: 31,475,242 km (0.074 R)
• M26: 32,403,048 km (0.111 R)
• M27: 33,031,659 km (0.111 R)
• M28: 34,097,244 km (0.111 R)
• M29: 35,627,481 km (0.07 R)
• M30: 39,533,481 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.8

Radius: 12.3

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.05 AU - 5.69 AU

Year: 8163 Days

Day: 5.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,928,310 km

• M1: 153,039 km (0.101 R)
• M2: 667,506 km (0.089 R)
• M3: 1,181,973 km (0.074 R)
• M4: 1,635,254 km (0.08 R)
• M5: 3,053,592 km (0.039 R)
• M6: 4,215,219 km (0.051 R)
• M7: 5,651,658 km (0.106 R)
• M8: 6,926,830 km (0.116 R)
• M9: 7,392,080 km (0.12 R)
• M10: 7,795,695 km (0.116 R)
• M11: 8,959,716 km (0.069 R)
• M12: 9,702,170 km (0.036 R)
• M13: 12,011,811 km (0.114 R)
• M14: 12,401,514 km (0.037 R)
• M15: 13,089,215 km (0.062 R)
• M16: 14,353,916 km (0.107 R)
• M17: 15,176,704 km (0.05 R)
• M18: 18,636,753 km (0.101 R)
• M19: 19,084,500 km (0.085 R)
• M20: 20,629,247 km (0.119 R)
• M21: 22,172,499 km (0.074 R)
• M22: 23,791,297 km (0.09 R)
• M23: 25,305,377 km (0.078 R)
• M24: 25,762,698 km (0.116 R)
• M25: 29,320,135 km (0.1 R)
• M26: 30,541,004 km (0.108 R)
• M27: 31,268,648 km (0.027 R)
• M28: 37,749,227 km (0.037 R)
• M29: 41,555,147 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.9

Radius: 7

Gravity: 13.24 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.6 AU - 8.62 AU

Year: 16573 Days

Day: 19.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 65,928,310 km

• M1: 87,066 km (0.027 R)
• M2: 464,651 km (0.045 R)
• M3: 888,163 km (0.064 R)
• M4: 1,217,727 km (0.111 R)
• M5: 1,692,850 km (0.074 R)
• M6: 1,955,095 km (0.117 R)
• M7: 2,264,762 km (0.09 R)
• M8: 2,674,810 km (0.095 R)
• M9: 2,983,281 km (0.118 R)
• M10: 3,236,400 km (0.061 R)
• M11: 4,237,958 km (0.061 R)
• M12: 7,010,455 km (0.052 R)
• M13: 10,339,906 km (0.111 R)
• M14: 13,886,422 km (0.075 R)
• M15: 20,156,817 km (0.115 R)
• M16: 21,435,580 km (0.093 R)
• M17: 21,716,524 km (0.119 R)
• M18: 26,337,154 km (0.055 R)
• M19: 26,984,464 km (0.116 R)
• M20: 30,380,635 km (0.065 R)
• M21: 30,735,182 km (0.075 R)
• M22: 32,796,491 km (0.119 R)
• M23: 45,570,653 km (0.042 R)
• M24: 47,766,002 km (0.087 R)
• M25: 48,405,981 km (0.117 R)
• M26: 49,376,722 km (0.102 R)
• M27: 51,189,848 km (0.094 R)
• M28: 55,827,681 km (0.091 R)
• M29: 58,704,000 km (0.081 R)
• M30: 59,807,583 km (0.09 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 20,084 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit