🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.56 AU - 0.68 AU

Year: 320 Days

Day: 13.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.8

Radius: 12.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.82 AU - 0.98 AU

Year: 560 Days

Day: 14.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,763,015 km

• M1: 164,857 km (0.057 R)
• M2: 450,439 km (0.108 R)
• M3: 945,907 km (0.102 R)
• M4: 1,256,921 km (0.052 R)
• M5: 1,807,441 km (0.1 R)
• M6: 2,251,149 km (0.054 R)
• M7: 2,648,929 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.6

Radius: 11.5

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.99 AU - 2.63 AU

Year: 2303 Days

Day: 6.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,763,015 km

• M1: 157,078 km (0.099 R)
• M2: 394,041 km (0.031 R)
• M3: 656,286 km (0.08 R)
• M4: 900,430 km (0.046 R)
• M5: 1,182,870 km (0.076 R)
• M6: 1,449,155 km (0.061 R)
• M7: 1,712,297 km (0.107 R)
• M8: 2,072,379 km (0.096 R)
• M9: 3,051,647 km (0.083 R)
• M10: 3,782,133 km (0.066 R)
• M11: 4,302,734 km (0.088 R)
• M12: 4,706,499 km (0.111 R)
• M13: 5,468,251 km (0.096 R)
• M14: 5,735,283 km (0.095 R)
• M15: 6,687,474 km (0.086 R)
• M16: 6,914,264 km (0.107 R)
• M17: 7,191,469 km (0.073 R)
• M18: 7,641,908 km (0.117 R)
• M19: 7,958,158 km (0.115 R)
• M20: 9,315,011 km (0.104 R)
• M21: 10,075,566 km (0.118 R)
• M22: 12,477,360 km (0.1 R)
• M23: 12,694,427 km (0.091 R)
• M24: 13,938,482 km (0.09 R)
• M25: 14,333,122 km (0.086 R)
• M26: 15,070,938 km (0.08 R)
• M27: 15,309,696 km (0.096 R)
• M28: 16,817,643 km (0.095 R)
• M29: 17,433,388 km (0.106 R)
• M30: 17,727,198 km (0.109 R)
• M31: 18,284,450 km (0.085 R)
• M32: 18,812,381 km (0.119 R)
• M33: 19,232,601 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.3

Radius: 11.1

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.59 AU - 3.45 AU

Year: 3443 Days

Day: 11.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,763,015 km

• M1: 138,976 km (0.119 R)
• M2: 557,551 km (0.085 R)
• M3: 835,504 km (0.074 R)
• M4: 1,553,424 km (0.105 R)
• M5: 2,397,904 km (0.098 R)
• M6: 2,759,782 km (0.06 R)
• M7: 3,077,976 km (0.064 R)
• M8: 3,795,148 km (0.048 R)
• M9: 4,838,294 km (0.054 R)
• M10: 5,108,019 km (0.076 R)
• M11: 5,354,257 km (0.077 R)
• M12: 5,590,472 km (0.102 R)
• M13: 6,518,278 km (0.083 R)
• M14: 6,920,547 km (0.051 R)
• M15: 7,280,330 km (0.094 R)
• M16: 7,668,088 km (0.112 R)
• M17: 8,200,955 km (0.058 R)
• M18: 8,494,018 km (0.068 R)
• M19: 8,752,074 km (0.093 R)
• M20: 9,781,606 km (0.106 R)
• M21: 11,642,005 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.1

Radius: 6.1

Gravity: 14.68 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.83 AU - 9.81 AU

Year: 17184 Days

Day: 16.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 63,763,015 km

• M1: 228,735 km (0.117 R)
• M2: 424,559 km (0.117 R)
• M3: 650,601 km (0.067 R)
• M4: 818,749 km (0.065 R)
• M5: 1,023,848 km (0.11 R)
• M6: 1,324,091 km (0.088 R)
• M7: 1,586,336 km (0.096 R)
• M8: 1,788,742 km (0.116 R)
• M9: 2,326,845 km (0.067 R)
• M10: 2,726,272 km (0.105 R)
• M11: 2,965,329 km (0.095 R)
• M12: 3,242,983 km (0.104 R)
• M13: 3,386,597 km (0.076 R)
• M14: 3,503,732 km (0.041 R)
• M15: 3,683,399 km (0.042 R)
• M16: 5,468,999 km (0.036 R)
• M17: 5,769,541 km (0.068 R)
• M18: 6,196,194 km (0.112 R)
• M19: 7,656,269 km (0.119 R)
• M20: 8,238,205 km (0.095 R)
• M21: 13,202,760 km (0.07 R)
• M22: 14,994,943 km (0.088 R)
• M23: 15,118,510 km (0.097 R)
• M24: 15,870,539 km (0.055 R)
• M25: 16,967,241 km (0.118 R)
• M26: 18,441,229 km (0.104 R)
• M27: 20,550,559 km (0.117 R)
• M28: 22,170,255 km (0.081 R)
• M29: 22,320,601 km (0.091 R)
• M30: 23,079,660 km (0.119 R)
• M31: 25,113,144 km (0.099 R)
• M32: 25,273,064 km (0.085 R)
• M33: 27,232,647 km (0.043 R)
• M34: 39,121,788 km (0.112 R)
• M35: 39,722,423 km (0.12 R)
• M36: 45,013,551 km (0.072 R)
• M37: 48,502,622 km (0.116 R)
• M38: 49,507,321 km (0.038 R)
• M39: 54,922,165 km (0.114 R)
• M40: 58,038,588 km (0.073 R)
• M41: 58,160,211 km (0.101 R)
• M42: 58,281,834 km (0.079 R)
• M43: 61,116,265 km (0.118 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 18,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit