🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.1

Radius: 13.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.46 AU - 0.74 AU

Year: 315 Days

Day: 7 Hours

Environment

Temp: -159 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,360,504 km

• M1: 170,392 km (0.099 R)
• M2: 599,887 km (0.078 R)
• M3: 1,570,179 km (0.047 R)
• M4: 2,021,067 km (0.119 R)
• M5: 3,722,893 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.6

Radius: 14.5

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.69 AU - 0.97 AU

Year: 513 Days

Day: 11.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,360,504 km

• M1: 180,265 km (0.08 R)
• M2: 652,546 km (0.082 R)
• M3: 1,277,416 km (0.085 R)
• M4: 1,731,895 km (0.079 R)
• M5: 2,629,931 km (0.058 R)
• M6: 3,132,579 km (0.056 R)
• M7: 3,628,048 km (0.094 R)
• M8: 4,402,516 km (0.084 R)
• M9: 5,147,663 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.6

Radius: 13.9

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.92 AU - 1.42 AU

Year: 858 Days

Day: 12.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,360,504 km

• M1: 208,689 km (0.117 R)
• M2: 771,327 km (0.09 R)
• M3: 1,228,199 km (0.103 R)
• M4: 1,738,327 km (0.12 R)
• M5: 2,706,225 km (0.073 R)
• M6: 4,689,594 km (0.07 R)
• M7: 6,247,357 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.4

Radius: 14.6

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.11 AU - 1.25 AU

Year: 869 Days

Day: 8.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,360,504 km

• M1: 181,761 km (0.082 R)
• M2: 682,316 km (0.098 R)
• M3: 1,146,368 km (0.115 R)
• M4: 1,669,662 km (0.1 R)
• M5: 3,299,830 km (0.101 R)
• M6: 3,875,333 km (0.064 R)
• M7: 4,950,493 km (0.064 R)
• M8: 7,078,373 km (0.115 R)
• M9: 8,358,332 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.4

Radius: 14.8

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.2 AU - 1.32 AU

Year: 959 Days

Day: 8.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,360,504 km

• M1: 184,305 km (0.09 R)
• M2: 680,222 km (0.079 R)
• M3: 1,220,270 km (0.113 R)
• M4: 1,693,747 km (0.066 R)
• M5: 2,208,065 km (0.065 R)
• M6: 3,248,518 km (0.112 R)
• M7: 3,850,051 km (0.104 R)
• M8: 4,456,221 km (0.08 R)
• M9: 5,240,563 km (0.075 R)
• M10: 6,354,469 km (0.032 R)
• M11: 7,301,573 km (0.096 R)
• M12: 8,394,236 km (0.062 R)
• M13: 9,078,048 km (0.113 R)
• M14: 10,495,487 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.5

Radius: 9.3

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.11 AU - 1.49 AU

Year: 1005 Days

Day: 10.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,360,504 km

• M1: 115,639 km (0.066 R)
• M2: 425,905 km (0.103 R)
• M3: 836,402 km (0.111 R)
• M4: 1,454,989 km (0.076 R)
• M5: 1,801,458 km (0.055 R)
• M6: 2,222,725 km (0.026 R)
• M7: 3,175,364 km (0.046 R)
• M8: 3,583,767 km (0.05 R)
• M9: 3,909,142 km (0.066 R)
• M10: 4,718,466 km (0.098 R)
• M11: 6,195,895 km (0.083 R)
• M12: 7,007,912 km (0.086 R)
• M13: 7,383,403 km (0.086 R)
• M14: 7,818,882 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.7

Radius: 13.6

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.9 AU - 3.04 AU

Year: 2633 Days

Day: 11.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,360,504 km

• M1: 169,195 km (0.053 R)
• M2: 1,191,697 km (0.109 R)
• M3: 2,135,809 km (0.111 R)
• M4: 4,514,116 km (0.035 R)
• M5: 6,426,575 km (0.11 R)
• M6: 6,898,407 km (0.116 R)
• M7: 9,162,122 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 12.5

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.59 AU - 4.59 AU

Year: 5610 Days

Day: 6.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,360,504 km

• M1: 155,881 km (0.116 R)
• M2: 576,550 km (0.109 R)
• M3: 1,410,558 km (0.118 R)
• M4: 2,793,740 km (0.097 R)
• M5: 3,748,923 km (0.08 R)
• M6: 4,302,734 km (0.094 R)
• M7: 4,966,201 km (0.103 R)
• M8: 5,635,801 km (0.06 R)
• M9: 6,201,281 km (0.114 R)
• M10: 6,735,495 km (0.113 R)
• M11: 7,409,433 km (0.069 R)
• M12: 7,934,671 km (0.05 R)
• M13: 8,768,829 km (0.113 R)
• M14: 9,970,997 km (0.045 R)
• M15: 11,231,659 km (0.08 R)
• M16: 11,774,699 km (0.115 R)
• M17: 12,648,350 km (0.07 R)
• M18: 15,110,432 km (0.071 R)
• M19: 16,329,056 km (0.109 R)
• M20: 19,099,908 km (0.077 R)
• M21: 19,945,884 km (0.052 R)
• M22: 26,844,291 km (0.077 R)
• M23: 29,087,212 km (0.096 R)
• M24: 29,830,563 km (0.049 R)
• M25: 30,681,925 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 325.8

Radius: 4.8

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.22 AU - 11.18 AU

Year: 20490 Days

Day: 24.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,360,504 km

• M1: 62,682 km (0.076 R)
• M2: 218,114 km (0.034 R)
• M3: 429,196 km (0.088 R)
• M4: 626,217 km (0.066 R)
• M5: 862,432 km (0.072 R)
• M6: 1,047,783 km (0.065 R)
• M7: 1,720,525 km (0.106 R)
• M8: 2,054,278 km (0.12 R)
• M9: 3,527,667 km (0.111 R)
• M10: 4,432,136 km (0.097 R)
• M11: 4,688,696 km (0.054 R)
• M12: 5,196,432 km (0.076 R)
• M13: 8,538,448 km (0.043 R)
• M14: 9,345,529 km (0.039 R)
• M15: 9,502,307 km (0.083 R)
• M16: 9,713,988 km (0.062 R)
• M17: 11,947,185 km (0.054 R)
• M18: 16,015,798 km (0.086 R)
• M19: 18,277,269 km (0.109 R)
• M20: 19,783,122 km (0.101 R)
• M21: 20,654,380 km (0.08 R)
• M22: 22,660,786 km (0.075 R)
• M23: 24,199,101 km (0.109 R)
• M24: 25,094,295 km (0.049 R)
• M25: 26,950,505 km (0.11 R)
• M26: 30,130,358 km (0.044 R)
• M27: 33,307,667 km (0.115 R)
• M28: 36,961,445 km (0.05 R)
• M29: 40,042,413 km (0.114 R)
• M30: 42,283,988 km (0.12 R)
• M31: 43,001,160 km (0.039 R)
• M32: 47,168,508 km (0.11 R)
• M33: 49,191,669 km (0.05 R)
• M34: 53,410,030 km (0.088 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 13,417 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit