🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.2

Radius: 13.5

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.44 AU - 0.62 AU

Year: 257 Days

Day: 12 Hours

Environment

Temp: -140 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 73,381,864 km

• M1: 167,998 km (0.101 R)
• M2: 611,706 km (0.053 R)
• M3: 1,813,575 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329

Radius: 14.4

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.53 AU - 0.63 AU

Year: 295 Days

Day: 11.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,381,864 km

• M1: 179,069 km (0.083 R)
• M2: 789,278 km (0.096 R)
• M3: 1,257,968 km (0.095 R)
• M4: 1,799,363 km (0.104 R)
• M5: 2,633,820 km (0.119 R)
• M6: 3,207,079 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 9.8

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.59 AU - 0.71 AU

Year: 349 Days

Day: 13 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,381,864 km

• M1: 121,922 km (0.043 R)
• M2: 447,447 km (0.115 R)
• M3: 822,639 km (0.043 R)
• M4: 1,265,748 km (0.084 R)
• M5: 1,732,643 km (0.113 R)
• M6: 2,072,230 km (0.105 R)
• M7: 2,439,044 km (0.055 R)
• M8: 2,887,837 km (0.117 R)
• M9: 3,337,229 km (0.1 R)
• M10: 3,681,454 km (0.11 R)
• M11: 4,507,533 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 9.7

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.24 AU - 1.6 AU

Year: 1128 Days

Day: 10.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,381,864 km

• M1: 126,560 km (0.063 R)
• M2: 448,794 km (0.087 R)
• M3: 1,044,193 km (0.054 R)
• M4: 1,564,794 km (0.045 R)
• M5: 1,977,684 km (0.063 R)
• M6: 2,334,325 km (0.108 R)
• M7: 2,687,227 km (0.094 R)
• M8: 3,050,450 km (0.108 R)
• M9: 3,460,348 km (0.116 R)
• M10: 4,074,148 km (0.115 R)
• M11: 4,555,704 km (0.102 R)
• M12: 5,518,366 km (0.12 R)
• M13: 6,027,747 km (0.075 R)
• M14: 7,509,364 km (0.045 R)
• M15: 8,486,687 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.2

Radius: 11.2

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.13 AU - 2.85 AU

Year: 2620 Days

Day: 6.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,381,864 km

• M1: 139,276 km (0.066 R)
• M2: 574,605 km (0.111 R)
• M3: 1,202,916 km (0.105 R)
• M4: 1,789,939 km (0.12 R)
• M5: 2,254,590 km (0.11 R)
• M6: 2,612,577 km (0.102 R)
• M7: 4,934,486 km (0.101 R)
• M8: 6,040,612 km (0.052 R)
• M9: 6,814,632 km (0.097 R)
• M10: 7,252,056 km (0.108 R)
• M11: 8,240,748 km (0.097 R)
• M12: 9,285,839 km (0.051 R)
• M13: 10,316,718 km (0.094 R)
• M14: 11,930,131 km (0.106 R)
• M15: 12,874,393 km (0.059 R)
• M16: 13,265,890 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.8

Radius: 10.4

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.29 AU - 4.91 AU

Year: 6579 Days

Day: 6.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,381,864 km

• M1: 130,001 km (0.068 R)
• M2: 578,794 km (0.103 R)
• M3: 1,124,078 km (0.093 R)
• M4: 2,249,952 km (0.052 R)
• M5: 3,239,392 km (0.112 R)
• M6: 4,668,202 km (0.102 R)
• M7: 7,489,917 km (0.041 R)
• M8: 11,199,794 km (0.097 R)
• M9: 13,964,064 km (0.097 R)
• M10: 14,438,588 km (0.115 R)
• M11: 24,397,917 km (0.09 R)
• M12: 25,553,411 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.9

Radius: 6.3

Gravity: 17.91 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.76 AU - 6.82 AU

Year: 10520 Days

Day: 15.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,381,864 km

• M1: 78,389 km (0.074 R)
• M2: 320,289 km (0.119 R)
• M3: 680,222 km (0.098 R)
• M4: 990,039 km (0.108 R)
• M5: 1,351,916 km (0.06 R)
• M6: 2,495,442 km (0.091 R)
• M7: 2,721,335 km (0.111 R)
• M8: 4,406,106 km (0.116 R)
• M9: 5,117,444 km (0.119 R)
• M10: 5,938,736 km (0.1 R)
• M11: 6,157,149 km (0.113 R)
• M12: 7,667,190 km (0.062 R)
• M13: 10,849,885 km (0.11 R)
• M14: 11,398,460 km (0.114 R)
• M15: 14,487,207 km (0.072 R)
• M16: 16,542,682 km (0.085 R)
• M17: 18,397,995 km (0.067 R)
• M18: 19,816,632 km (0.105 R)
• M19: 20,552,653 km (0.113 R)
• M20: 20,885,658 km (0.064 R)
• M21: 22,166,066 km (0.082 R)
• M22: 22,870,074 km (0.098 R)
• M23: 23,137,854 km (0.056 R)
• M24: 28,631,985 km (0.076 R)
• M25: 29,572,058 km (0.041 R)
• M26: 32,179,400 km (0.082 R)
• M27: 34,000,305 km (0.105 R)
• M28: 39,105,033 km (0.075 R)
• M29: 41,573,248 km (0.096 R)
• M30: 42,239,707 km (0.069 R)
• M31: 42,642,873 km (0.097 R)
• M32: 43,593,717 km (0.079 R)
• M33: 44,976,600 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.2

Radius: 7.2

Gravity: 17.92 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 7.43 AU - 9.39 AU

Year: 16264 Days

Day: 20.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,381,864 km

• M1: 89,609 km (0.099 R)
• M2: 489,185 km (0.059 R)
• M3: 869,912 km (0.078 R)
• M4: 1,167,312 km (0.1 R)
• M5: 2,424,233 km (0.115 R)
• M6: 2,652,221 km (0.053 R)
• M7: 3,396,320 km (0.092 R)
• M8: 3,862,617 km (0.065 R)
• M9: 4,994,475 km (0.045 R)
• M10: 6,418,347 km (0.116 R)
• M11: 7,223,483 km (0.117 R)
• M12: 8,094,142 km (0.055 R)
• M13: 8,451,083 km (0.087 R)
• M14: 9,641,284 km (0.044 R)
• M15: 10,335,717 km (0.076 R)
• M16: 16,807,470 km (0.091 R)
• M17: 18,155,497 km (0.11 R)
• M18: 20,310,454 km (0.118 R)
• M19: 21,065,175 km (0.119 R)
• M20: 22,034,570 km (0.049 R)
• M21: 26,767,547 km (0.095 R)
• M22: 31,632,320 km (0.075 R)
• M23: 39,765,807 km (0.113 R)
• M24: 41,544,376 km (0.106 R)
• M25: 41,845,816 km (0.073 R)
• M26: 42,912,598 km (0.074 R)
• M27: 49,527,068 km (0.088 R)
• M28: 54,595,444 km (0.06 R)
• M29: 54,957,171 km (0.032 R)
• M30: 57,161,346 km (0.08 R)
• M31: 61,745,474 km (0.083 R)
• M32: 64,327,832 km (0.036 R)
• M33: 65,340,012 km (0.107 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: 356 - 13,542 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit