🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.56 AU - 0.6 AU

Year: 285 Days

Day: 16.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,115,938 km

• M1: 48,919 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.9

Radius: 13.8

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.92 AU - 1.16 AU

Year: 685 Days

Day: 9.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 70.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,115,938 km

• M1: 172,935 km (0.041 R)
• M2: 609,611 km (0.113 R)
• M3: 1,187,209 km (0.105 R)
• M4: 2,939,299 km (0.096 R)
• M5: 3,731,420 km (0.087 R)
• M6: 4,563,932 km (0.068 R)
• M7: 5,298,308 km (0.026 R)
• M8: 6,682,836 km (0.089 R)
• M9: 7,201,791 km (0.079 R)
• M10: 7,794,199 km (0.052 R)
• M11: 8,223,395 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.9

Radius: 10.6

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.15 AU - 4.97 AU

Year: 5282 Days

Day: 8.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,115,938 km

• M1: 131,796 km (0.104 R)
• M2: 634,445 km (0.056 R)
• M3: 1,206,806 km (0.077 R)
• M4: 1,708,856 km (0.065 R)
• M5: 4,040,638 km (0.057 R)
• M6: 5,285,293 km (0.106 R)
• M7: 6,130,820 km (0.085 R)
• M8: 8,119,424 km (0.111 R)
• M9: 8,763,443 km (0.093 R)
• M10: 12,150,040 km (0.116 R)
• M11: 12,870,204 km (0.12 R)
• M12: 14,264,007 km (0.067 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.9

Radius: 3.1

Gravity: 51.39 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.42 AU - 6.92 AU

Year: 9896 Days

Day: 22.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,115,938 km

• M1: 38,596 km (0.108 R)
• M2: 251,773 km (0.116 R)
• M3: 411,394 km (0.03 R)
• M4: 1,133,353 km (0.099 R)
• M5: 1,599,052 km (0.12 R)
• M6: 1,774,530 km (0.093 R)
• M7: 2,078,214 km (0.08 R)
• M8: 2,666,732 km (0.103 R)
• M9: 3,312,097 km (0.083 R)
• M10: 5,530,484 km (0.099 R)
• M11: 6,174,054 km (0.057 R)
• M12: 6,351,327 km (0.116 R)
• M13: 10,349,929 km (0.117 R)
• M14: 11,375,272 km (0.117 R)
• M15: 22,617,253 km (0.067 R)
• M16: 25,133,340 km (0.087 R)
• M17: 41,540,935 km (0.075 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.5

Radius: 3.9

Gravity: 27.38 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.18 AU - 9.32 AU

Year: 13931 Days

Day: 24.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,115,938 km

• M1: 48,470 km (0.085 R)
• M2: 202,705 km (0.059 R)
• M3: 343,626 km (0.043 R)
• M4: 672,293 km (0.053 R)
• M5: 927,656 km (0.098 R)
• M6: 1,257,221 km (0.062 R)
• M7: 1,737,878 km (0.118 R)
• M8: 2,090,481 km (0.101 R)
• M9: 3,485,331 km (0.108 R)
• M10: 6,148,772 km (0.087 R)
• M11: 6,298,220 km (0.106 R)
• M12: 7,287,511 km (0.095 R)
• M13: 7,797,191 km (0.115 R)
• M14: 10,600,505 km (0.088 R)
• M15: 14,464,618 km (0.075 R)
• M16: 20,637,026 km (0.1 R)
• M17: 21,826,180 km (0.084 R)
• M18: 22,261,659 km (0.085 R)
• M19: 28,773,654 km (0.052 R)
• M20: 30,040,748 km (0.115 R)
• M21: 35,005,004 km (0.087 R)
• M22: 37,680,263 km (0.052 R)
• M23: 44,399,750 km (0.095 R)
• M24: 47,821,054 km (0.051 R)
• M25: 48,113,817 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 265.2

Radius: 3.2

Gravity: 25.9 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 10.36 AU - 10.42 AU

Year: 21624 Days

Day: 22.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,115,938 km

• M1: 41,439 km (0.095 R)
• M2: 232,924 km (0.11 R)
• M3: 440,267 km (0.099 R)
• M4: 595,998 km (0.102 R)
• M5: 1,280,558 km (0.073 R)
• M6: 1,829,881 km (0.072 R)
• M7: 2,294,083 km (0.053 R)
• M8: 2,786,260 km (0.057 R)
• M9: 3,529,463 km (0.086 R)
• M10: 3,860,822 km (0.088 R)
• M11: 5,359,643 km (0.115 R)
• M12: 5,871,716 km (0.088 R)
• M13: 6,495,988 km (0.108 R)
• M14: 6,658,751 km (0.093 R)
• M15: 8,584,375 km (0.078 R)
• M16: 9,594,609 km (0.064 R)
• M17: 10,019,916 km (0.086 R)
• M18: 10,681,438 km (0.088 R)
• M19: 11,787,415 km (0.113 R)
• M20: 12,903,564 km (0.043 R)
• M21: 16,220,598 km (0.065 R)
• M22: 17,598,095 km (0.037 R)
• M23: 23,220,133 km (0.104 R)
• M24: 42,315,104 km (0.119 R)
• M25: 43,887,677 km (0.113 R)
• M26: 47,605,932 km (0.115 R)
• M27: 52,338,161 km (0.04 R)
• M28: 55,322,789 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.1

Radius: 7.5

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.96 AU - 12.94 AU

Year: 21812 Days

Day: 19.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 114.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,115,938 km

• M1: 93,947 km (0.111 R)
• M2: 1,004,550 km (0.111 R)
• M3: 1,320,800 km (0.119 R)
• M4: 1,577,958 km (0.048 R)
• M5: 1,903,184 km (0.106 R)
• M6: 2,392,668 km (0.099 R)
• M7: 2,963,384 km (0.12 R)
• M8: 3,255,848 km (0.096 R)
• M9: 4,221,054 km (0.093 R)
• M10: 4,528,926 km (0.086 R)
• M11: 5,653,004 km (0.107 R)
• M12: 6,785,311 km (0.077 R)
• M13: 8,202,302 km (0.12 R)
• M14: 8,440,312 km (0.116 R)
• M15: 12,463,447 km (0.083 R)
• M16: 13,822,394 km (0.081 R)
• M17: 14,365,136 km (0.041 R)
• M18: 17,686,657 km (0.118 R)
• M19: 19,567,102 km (0.104 R)
• M20: 20,251,363 km (0.11 R)
• M21: 23,817,327 km (0.095 R)
• M22: 25,093,248 km (0.119 R)
• M23: 26,414,047 km (0.06 R)
• M24: 26,829,630 km (0.091 R)
• M25: 30,086,825 km (0.077 R)
• M26: 30,426,412 km (0.091 R)
• M27: 32,399,009 km (0.085 R)
• M28: 35,076,213 km (0.098 R)
• M29: 37,113,586 km (0.085 R)
• M30: 37,766,132 km (0.079 R)
• M31: 43,120,838 km (0.072 R)
• M32: 59,115,992 km (0.091 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: 229 - 18,423 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit