🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.6

Radius: 13.3

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.52 AU - 0.66 AU

Year: 302 Days

Day: 12.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,155,460 km

• M1: 165,455 km (0.119 R)
• M2: 583,581 km (0.072 R)
• M3: 1,149,959 km (0.1 R)
• M4: 1,664,127 km (0.084 R)
• M5: 2,265,061 km (0.049 R)
• M6: 3,215,457 km (0.067 R)
• M7: 3,659,613 km (0.053 R)
• M8: 4,144,759 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.5

Radius: 13

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.52 AU - 0.7 AU

Year: 318 Days

Day: 10.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,155,460 km

• M1: 161,715 km (0.108 R)
• M2: 588,817 km (0.118 R)
• M3: 1,076,805 km (0.078 R)
• M4: 1,609,523 km (0.085 R)
• M5: 2,383,393 km (0.098 R)
• M6: 2,856,721 km (0.05 R)
• M7: 3,691,477 km (0.078 R)
• M8: 4,129,799 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.3

Radius: 13.3

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.57 AU - 0.81 AU

Year: 382 Days

Day: 11.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,155,460 km

• M1: 165,455 km (0.064 R)
• M2: 707,897 km (0.059 R)
• M3: 1,362,388 km (0.118 R)
• M4: 2,130,573 km (0.076 R)
• M5: 2,614,672 km (0.084 R)
• M6: 3,449,876 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797

Radius: 12.6

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.71 AU - 2.15 AU

Year: 1788 Days

Day: 13.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,155,460 km

• M1: 156,779 km (0.092 R)
• M2: 628,760 km (0.082 R)
• M3: 1,125,724 km (0.053 R)
• M4: 1,801,607 km (0.11 R)
• M5: 2,397,306 km (0.095 R)
• M6: 3,377,770 km (0.101 R)
• M7: 3,788,416 km (0.089 R)
• M8: 4,388,454 km (0.114 R)
• M9: 4,921,920 km (0.104 R)
• M10: 5,684,869 km (0.119 R)
• M11: 6,422,087 km (0.026 R)
• M12: 7,389,836 km (0.061 R)
• M13: 7,879,619 km (0.03 R)
• M14: 8,670,693 km (0.102 R)
• M15: 9,886,774 km (0.057 R)
• M16: 10,734,395 km (0.05 R)
• M17: 12,056,840 km (0.043 R)
• M18: 12,737,062 km (0.094 R)
• M19: 14,527,599 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.3

Radius: 10.8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.94 AU - 4.18 AU

Year: 4479 Days

Day: 6.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,155,460 km

• M1: 134,339 km (0.088 R)
• M2: 601,832 km (0.08 R)
• M3: 1,313,619 km (0.114 R)
• M4: 1,746,854 km (0.078 R)
• M5: 2,419,147 km (0.119 R)
• M6: 2,991,957 km (0.051 R)
• M7: 4,320,686 km (0.061 R)
• M8: 4,707,247 km (0.045 R)
• M9: 5,576,560 km (0.09 R)
• M10: 6,999,684 km (0.058 R)
• M11: 7,438,455 km (0.036 R)
• M12: 8,029,516 km (0.101 R)
• M13: 9,721,318 km (0.117 R)
• M14: 11,595,780 km (0.093 R)
• M15: 14,387,725 km (0.094 R)
• M16: 14,893,216 km (0.094 R)
• M17: 15,779,434 km (0.086 R)
• M18: 17,428,900 km (0.067 R)
• M19: 17,829,822 km (0.08 R)
• M20: 18,828,986 km (0.052 R)
• M21: 19,372,775 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.5

Radius: 12.4

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.29 AU - 6.55 AU

Year: 8415 Days

Day: 10.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,155,460 km

• M1: 154,235 km (0.085 R)
• M2: 899,233 km (0.102 R)
• M3: 1,391,260 km (0.047 R)
• M4: 2,077,914 km (0.054 R)
• M5: 2,535,235 km (0.03 R)
• M6: 3,817,139 km (0.103 R)
• M7: 4,406,106 km (0.102 R)
• M8: 5,860,497 km (0.099 R)
• M9: 6,443,629 km (0.084 R)
• M10: 7,136,716 km (0.089 R)
• M11: 7,538,685 km (0.098 R)
• M12: 9,826,187 km (0.074 R)
• M13: 11,225,824 km (0.03 R)
• M14: 12,701,458 km (0.114 R)
• M15: 13,735,927 km (0.078 R)
• M16: 15,665,141 km (0.097 R)
• M17: 21,230,780 km (0.064 R)
• M18: 22,065,536 km (0.108 R)
• M19: 23,639,456 km (0.09 R)
• M20: 25,202,753 km (0.086 R)
• M21: 28,901,561 km (0.087 R)
• M22: 33,861,478 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 614.2

Radius: 4.8

Gravity: 26.66 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 8.84 AU - 9.78 AU

Year: 18943 Days

Day: 21.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,155,460 km

• M1: 61,036 km (0.077 R)
• M2: 257,907 km (0.111 R)
• M3: 485,894 km (0.11 R)
• M4: 668,852 km (0.104 R)
• M5: 965,654 km (0.099 R)
• M6: 2,248,606 km (0.062 R)
• M7: 2,531,944 km (0.091 R)
• M8: 2,741,680 km (0.065 R)
• M9: 4,417,176 km (0.069 R)
• M10: 4,721,907 km (0.096 R)
• M11: 7,077,176 km (0.083 R)
• M12: 7,400,307 km (0.097 R)
• M13: 8,026,524 km (0.084 R)
• M14: 9,438,578 km (0.088 R)
• M15: 10,408,122 km (0.108 R)
• M16: 10,947,423 km (0.085 R)
• M17: 11,758,991 km (0.093 R)
• M18: 13,291,920 km (0.106 R)
• M19: 14,069,979 km (0.062 R)
• M20: 15,255,542 km (0.086 R)
• M21: 17,321,339 km (0.088 R)
• M22: 22,884,884 km (0.065 R)
• M23: 25,472,478 km (0.116 R)
• M24: 26,121,284 km (0.091 R)
• M25: 29,177,718 km (0.045 R)
• M26: 30,609,520 km (0.066 R)
• M27: 41,222,292 km (0.072 R)
• M28: 43,787,895 km (0.079 R)
• M29: 46,138,377 km (0.086 R)
• M30: 49,234,604 km (0.058 R)
• M31: 51,089,019 km (0.03 R)
• M32: 52,989,511 km (0.079 R)
• M33: 59,349,215 km (0.067 R)
• M34: 67,835,304 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.4

Radius: 6.7

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 10.17 AU - 11.29 AU

Year: 23438 Days

Day: 22 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,155,460 km

• M1: 567,874 km (0.039 R)
• M2: 964,457 km (0.081 R)
• M3: 1,270,236 km (0.118 R)
• M4: 3,959,556 km (0.111 R)
• M5: 4,589,363 km (0.04 R)
• M6: 5,566,387 km (0.106 R)
• M7: 7,132,078 km (0.117 R)
• M8: 8,436,572 km (0.065 R)
• M9: 18,347,132 km (0.099 R)
• M10: 25,534,262 km (0.082 R)
• M11: 29,523,888 km (0.1 R)
• M12: 33,910,247 km (0.074 R)
• M13: 40,725,627 km (0.119 R)
• M14: 41,827,714 km (0.078 R)
• M15: 42,106,415 km (0.073 R)
• M16: 44,960,892 km (0.077 R)
• M17: 50,419,419 km (0.089 R)
• M18: 51,370,114 km (0.117 R)
• M19: 52,818,520 km (0.12 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 194 - 13,298 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit