🌌 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: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.64 AU - 0.68 AU

Year: 346 Days

Day: 37 Hours

Environment

Temp: -140 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,590,339 km

• M1: 33,510 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.5

Radius: 11.9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.74 AU - 1.02 AU

Year: 533 Days

Day: 14.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,590,339 km

• M1: 147,952 km (0.066 R)
• M2: 588,668 km (0.099 R)
• M3: 1,464,862 km (0.084 R)
• M4: 2,115,912 km (0.039 R)
• M5: 3,221,441 km (0.105 R)
• M6: 4,154,782 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.5

Radius: 12.8

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.37 AU - 1.81 AU

Year: 1295 Days

Day: 8.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 122.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,590,339 km

• M1: 159,471 km (0.109 R)
• M2: 683,513 km (0.094 R)
• M3: 2,204,025 km (0.12 R)
• M4: 2,837,423 km (0.074 R)
• M5: 3,432,074 km (0.058 R)
• M6: 4,765,889 km (0.099 R)
• M7: 5,433,544 km (0.043 R)
• M8: 6,269,198 km (0.088 R)
• M9: 7,620,067 km (0.056 R)
• M10: 9,721,618 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.9

Radius: 15

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.22 AU - 1.98 AU

Year: 1307 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,590,339 km

• M1: 186,549 km (0.099 R)
• M2: 675,285 km (0.117 R)
• M3: 1,170,155 km (0.054 R)
• M4: 1,689,858 km (0.115 R)
• M5: 2,883,050 km (0.058 R)
• M6: 4,096,738 km (0.108 R)
• M7: 4,849,813 km (0.077 R)
• M8: 5,500,714 km (0.085 R)
• M9: 6,878,809 km (0.103 R)
• M10: 7,702,645 km (0.113 R)
• M11: 8,448,241 km (0.041 R)
• M12: 9,151,051 km (0.105 R)
• M13: 10,245,659 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.7

Radius: 10.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.47 AU - 2.99 AU

Year: 2912 Days

Day: 6.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,590,339 km

• M1: 141,071 km (0.087 R)
• M2: 1,730,099 km (0.093 R)
• M3: 2,325,050 km (0.077 R)
• M4: 3,770,914 km (0.117 R)
• M5: 5,124,176 km (0.083 R)
• M6: 5,652,556 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.1

Radius: 10.1

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.24 AU - 5.68 AU

Year: 7132 Days

Day: 14.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,590,339 km

• M1: 127,308 km (0.031 R)
• M2: 452,683 km (0.117 R)
• M3: 1,470,098 km (0.108 R)
• M4: 1,973,346 km (0.05 R)
• M5: 2,352,875 km (0.082 R)
• M6: 2,840,714 km (0.033 R)
• M7: 3,919,165 km (0.097 R)
• M8: 4,579,340 km (0.026 R)
• M9: 5,189,849 km (0.113 R)
• M10: 5,755,628 km (0.111 R)
• M11: 6,223,571 km (0.105 R)
• M12: 6,899,304 km (0.1 R)
• M13: 9,539,108 km (0.075 R)
• M14: 10,682,784 km (0.108 R)
• M15: 11,390,831 km (0.12 R)
• M16: 12,292,307 km (0.066 R)
• M17: 16,116,328 km (0.062 R)
• M18: 17,251,776 km (0.119 R)
• M19: 18,582,898 km (0.096 R)
• M20: 19,981,339 km (0.119 R)
• M21: 21,766,640 km (0.073 R)
• M22: 26,736,580 km (0.109 R)
• M23: 28,997,453 km (0.12 R)
• M24: 33,681,961 km (0.118 R)
• M25: 36,880,961 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682

Radius: 6.5

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.13 AU - 6.65 AU

Year: 10430 Days

Day: 22.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 39,590,339 km

• M1: 80,932 km (0.095 R)
• M2: 391,946 km (0.102 R)
• M3: 944,561 km (0.114 R)
• M4: 1,254,827 km (0.048 R)
• M5: 2,205,970 km (0.083 R)
• M6: 2,509,953 km (0.095 R)
• M7: 2,885,294 km (0.082 R)
• M8: 3,542,777 km (0.084 R)
• M9: 3,987,980 km (0.049 R)
• M10: 4,266,980 km (0.069 R)
• M11: 4,649,203 km (0.056 R)
• M12: 5,215,580 km (0.034 R)
• M13: 7,992,266 km (0.107 R)
• M14: 8,897,333 km (0.105 R)
• M15: 10,071,527 km (0.072 R)
• M16: 10,484,866 km (0.111 R)
• M17: 11,235,398 km (0.036 R)
• M18: 12,723,299 km (0.115 R)
• M19: 13,452,589 km (0.091 R)
• M20: 13,953,891 km (0.096 R)
• M21: 15,194,656 km (0.117 R)
• M22: 16,084,763 km (0.028 R)
• M23: 16,649,645 km (0.107 R)
• M24: 17,447,600 km (0.116 R)
• M25: 23,944,037 km (0.06 R)
• M26: 26,488,697 km (0.065 R)
• M27: 27,475,145 km (0.098 R)
• M28: 28,180,200 km (0.092 R)
• M29: 29,208,087 km (0.089 R)
• M30: 31,229,603 km (0.105 R)
• M31: 31,886,936 km (0.104 R)
• M32: 34,144,517 km (0.048 R)
• M33: 35,312,278 km (0.111 R)
• M34: 43,153,151 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.5

Radius: 8

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.1 AU - 8.14 AU

Year: 12267 Days

Day: 15.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,590,339 km

• M1: 114,293 km (0.108 R)
• M2: 1,123,630 km (0.103 R)
• M3: 1,531,583 km (0.057 R)
• M4: 1,792,631 km (0.107 R)
• M5: 2,283,611 km (0.047 R)
• M6: 8,418,022 km (0.099 R)
• M7: 10,549,193 km (0.068 R)
• M8: 15,086,347 km (0.028 R)
• M9: 16,232,267 km (0.105 R)
• M10: 24,869,000 km (0.117 R)
• M11: 28,033,295 km (0.11 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: 431 - 14,390 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit