🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 12.6

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.54 AU - 0.86 AU

Year: 397 Days

Day: 5.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,167,415 km

• M1: 156,779 km (0.032 R)
• M2: 632,051 km (0.08 R)
• M3: 1,072,916 km (0.063 R)
• M4: 2,851,485 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.4

Radius: 9.4

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.65 AU - 0.83 AU

Year: 432 Days

Day: 14.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,167,415 km

• M1: 116,986 km (0.096 R)
• M2: 519,404 km (0.119 R)
• M3: 990,488 km (0.098 R)
• M4: 1,451,548 km (0.09 R)
• M5: 1,843,046 km (0.095 R)
• M6: 2,220,930 km (0.046 R)
• M7: 3,157,712 km (0.076 R)
• M8: 3,548,162 km (0.105 R)
• M9: 3,929,487 km (0.094 R)
• M10: 4,338,189 km (0.12 R)
• M11: 4,682,264 km (0.051 R)
• M12: 5,142,128 km (0.102 R)
• M13: 5,666,917 km (0.036 R)
• M14: 6,078,909 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.5

Radius: 13.8

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.69 AU - 0.89 AU

Year: 476 Days

Day: 10 Hours

Environment

Temp: -161 °C

Axial Tilt: 76.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,167,415 km

• M1: 171,589 km (0.077 R)
• M2: 655,837 km (0.065 R)
• M3: 1,106,725 km (0.081 R)
• M4: 2,143,887 km (0.04 R)
• M5: 2,737,491 km (0.081 R)
• M6: 3,390,636 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.5

Radius: 10.4

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.93 AU - 1.07 AU

Year: 678 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,167,415 km

• M1: 129,552 km (0.086 R)
• M2: 507,436 km (0.107 R)
• M3: 855,251 km (0.032 R)
• M4: 1,511,686 km (0.104 R)
• M5: 1,918,742 km (0.114 R)
• M6: 2,379,055 km (0.056 R)
• M7: 2,946,180 km (0.119 R)
• M8: 3,286,665 km (0.108 R)
• M9: 5,525,697 km (0.054 R)
• M10: 5,973,293 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.3

Radius: 10.6

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.38 AU - 1.48 AU

Year: 1160 Days

Day: 5.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,167,415 km

• M1: 131,796 km (0.07 R)
• M2: 619,784 km (0.036 R)
• M3: 1,165,068 km (0.116 R)
• M4: 1,573,321 km (0.037 R)
• M5: 1,961,976 km (0.097 R)
• M6: 2,402,991 km (0.073 R)
• M7: 2,776,686 km (0.04 R)
• M8: 3,218,149 km (0.113 R)
• M9: 3,611,143 km (0.077 R)
• M10: 4,121,571 km (0.096 R)
• M11: 4,889,457 km (0.092 R)
• M12: 5,287,387 km (0.098 R)
• M13: 5,685,467 km (0.111 R)
• M14: 6,058,415 km (0.059 R)
• M15: 6,518,278 km (0.114 R)
• M16: 8,795,756 km (0.113 R)
• M17: 9,815,266 km (0.102 R)
• M18: 10,778,676 km (0.089 R)
• M19: 11,283,419 km (0.108 R)
• M20: 12,016,599 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.9

Radius: 11.4

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.4 AU - 2.1 AU

Year: 1570 Days

Day: 13.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,167,415 km

• M1: 143,913 km (0.118 R)
• M2: 522,396 km (0.042 R)
• M3: 1,064,389 km (0.052 R)
• M4: 1,430,904 km (0.117 R)
• M5: 1,791,584 km (0.103 R)
• M6: 2,272,840 km (0.067 R)
• M7: 2,676,156 km (0.108 R)
• M8: 3,434,917 km (0.078 R)
• M9: 3,900,016 km (0.113 R)
• M10: 4,637,384 km (0.056 R)
• M11: 5,186,109 km (0.074 R)
• M12: 6,914,713 km (0.109 R)
• M13: 7,966,685 km (0.119 R)
• M14: 9,854,461 km (0.066 R)
• M15: 11,256,342 km (0.079 R)
• M16: 11,949,280 km (0.074 R)
• M17: 13,622,532 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.2

Radius: 13.5

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.36 AU - 2.26 AU

Year: 1652 Days

Day: 5.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,167,415 km

• M1: 167,998 km (0.089 R)
• M2: 744,249 km (0.096 R)
• M3: 1,175,839 km (0.113 R)
• M4: 1,661,284 km (0.12 R)
• M5: 2,291,839 km (0.088 R)
• M6: 2,737,192 km (0.089 R)
• M7: 3,965,391 km (0.041 R)
• M8: 5,757,573 km (0.058 R)
• M9: 6,717,244 km (0.088 R)
• M10: 7,945,143 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.6

Radius: 11.5

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.01 AU - 3.51 AU

Year: 3992 Days

Day: 6.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,167,415 km

• M1: 143,016 km (0.087 R)
• M2: 535,560 km (0.071 R)
• M3: 1,036,564 km (0.12 R)
• M4: 1,406,220 km (0.048 R)
• M5: 1,816,417 km (0.077 R)
• M6: 3,373,432 km (0.102 R)
• M7: 3,832,697 km (0.117 R)
• M8: 4,351,652 km (0.116 R)
• M9: 4,956,477 km (0.097 R)
• M10: 5,681,578 km (0.089 R)
• M11: 6,081,303 km (0.044 R)
• M12: 6,547,450 km (0.076 R)
• M13: 8,257,653 km (0.062 R)
• M14: 8,684,605 km (0.051 R)
• M15: 9,769,938 km (0.114 R)
• M16: 12,281,985 km (0.061 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.9

Radius: 7.3

Gravity: 14.73 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.1 AU - 10.36 AU

Year: 20585 Days

Day: 20.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,167,415 km

• M1: 90,806 km (0.087 R)
• M2: 386,860 km (0.068 R)
• M3: 710,590 km (0.073 R)
• M4: 977,921 km (0.063 R)
• M5: 1,651,411 km (0.112 R)
• M6: 1,928,466 km (0.11 R)
• M7: 2,346,143 km (0.113 R)
• M8: 2,624,844 km (0.088 R)
• M9: 3,221,590 km (0.114 R)
• M10: 5,049,676 km (0.05 R)
• M11: 5,637,895 km (0.073 R)
• M12: 6,054,824 km (0.06 R)
• M13: 7,380,860 km (0.117 R)
• M14: 7,727,927 km (0.087 R)
• M15: 10,044,001 km (0.099 R)
• M16: 11,890,039 km (0.092 R)
• M17: 12,645,807 km (0.049 R)
• M18: 16,742,246 km (0.083 R)
• M19: 17,083,179 km (0.086 R)
• M20: 18,313,173 km (0.039 R)
• M21: 19,227,216 km (0.119 R)
• M22: 20,171,328 km (0.044 R)
• M23: 21,047,074 km (0.115 R)
• M24: 21,444,256 km (0.097 R)
• M25: 28,986,532 km (0.079 R)
• M26: 31,372,469 km (0.098 R)
• M27: 39,310,580 km (0.111 R)
• M28: 46,785,238 km (0.079 R)
• M29: 55,909,212 km (0.052 R)
• M30: 56,480,078 km (0.113 R)
• M31: 57,633,477 km (0.089 R)
• M32: 58,021,385 km (0.068 R)
• M33: 63,636,840 km (0.061 R)
• M34: 65,305,305 km (0.088 R)
• M35: 66,150,383 km (0.103 R)
• M36: 66,575,690 km (0.111 R)
• M37: 69,603,850 km (0.054 R)
• M38: 76,867,575 km (0.105 R)
• M39: 80,439,972 km (0.223 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: 483 - 13,493 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit