🌌 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: 699.4

Radius: 12.9

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.55 AU - 0.63 AU

Year: 307 Days

Day: 5.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,689,603 km

• M1: 160,369 km (0.086 R)
• M2: 580,141 km (0.086 R)
• M3: 998,865 km (0.119 R)
• M4: 1,434,494 km (0.114 R)
• M5: 1,984,715 km (0.053 R)
• M6: 3,173,569 km (0.101 R)
• M7: 4,083,573 km (0.111 R)
• M8: 4,600,284 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.8

Radius: 8.5

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.02 AU - 1.06 AU

Year: 719 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,689,603 km

• M1: 105,766 km (0.065 R)
• M2: 380,727 km (0.069 R)
• M3: 692,638 km (0.082 R)
• M4: 990,338 km (0.057 R)
• M5: 1,416,243 km (0.083 R)
• M6: 2,059,364 km (0.059 R)
• M7: 2,326,247 km (0.048 R)
• M8: 2,670,771 km (0.087 R)
• M9: 3,207,977 km (0.069 R)
• M10: 3,677,116 km (0.083 R)
• M11: 3,985,886 km (0.1 R)
• M12: 4,357,786 km (0.107 R)
• M13: 4,687,948 km (0.071 R)
• M14: 5,001,057 km (0.108 R)
• M15: 5,650,910 km (0.087 R)
• M16: 6,082,649 km (0.087 R)
• M17: 6,678,647 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.6

Radius: 12.4

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.08 AU - 1.44 AU

Year: 959 Days

Day: 8 Hours

Environment

Temp: -191 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,689,603 km

• M1: 154,235 km (0.057 R)
• M2: 639,680 km (0.115 R)
• M3: 1,054,067 km (0.099 R)
• M4: 1,489,396 km (0.059 R)
• M5: 2,201,333 km (0.067 R)
• M6: 2,594,775 km (0.066 R)
• M7: 2,982,682 km (0.097 R)
• M8: 4,405,807 km (0.09 R)
• M9: 5,057,006 km (0.092 R)
• M10: 5,939,185 km (0.081 R)
• M11: 6,968,269 km (0.059 R)
• M12: 8,270,967 km (0.088 R)
• M13: 9,759,615 km (0.067 R)
• M14: 10,242,218 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.2

Radius: 11.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.15 AU - 1.79 AU

Year: 1209 Days

Day: 13 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 88,689,603 km

• M1: 143,165 km (0.077 R)
• M2: 512,373 km (0.094 R)
• M3: 896,690 km (0.103 R)
• M4: 1,416,243 km (0.095 R)
• M5: 1,959,583 km (0.117 R)
• M6: 2,332,680 km (0.11 R)
• M7: 3,269,013 km (0.113 R)
• M8: 4,110,949 km (0.115 R)
• M9: 4,916,085 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.5

Radius: 13.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.3 AU - 3 AU

Year: 2926 Days

Day: 8.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,689,603 km

• M1: 162,912 km (0.027 R)
• M2: 671,395 km (0.103 R)
• M3: 1,518,418 km (0.112 R)
• M4: 1,975,739 km (0.095 R)
• M5: 2,538,975 km (0.113 R)
• M6: 3,208,276 km (0.095 R)
• M7: 3,678,013 km (0.054 R)
• M8: 4,193,827 km (0.113 R)
• M9: 4,901,425 km (0.042 R)
• M10: 5,394,200 km (0.093 R)
• M11: 6,305,849 km (0.112 R)
• M12: 6,916,358 km (0.101 R)
• M13: 8,196,916 km (0.039 R)
• M14: 8,708,242 km (0.051 R)
• M15: 9,499,016 km (0.048 R)
• M16: 12,276,749 km (0.059 R)
• M17: 13,394,245 km (0.028 R)
• M18: 13,935,640 km (0.074 R)
• M19: 14,709,360 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.6

Radius: 13.2

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 3.11 AU - 3.81 AU

Year: 4365 Days

Day: 7.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,689,603 km

• M1: 167,699 km (0.068 R)
• M2: 630,256 km (0.12 R)
• M3: 1,255,874 km (0.116 R)
• M4: 2,047,845 km (0.057 R)
• M5: 2,599,113 km (0.1 R)
• M6: 3,095,479 km (0.03 R)
• M7: 3,783,480 km (0.091 R)
• M8: 4,234,368 km (0.092 R)
• M9: 4,645,911 km (0.066 R)
• M10: 6,135,457 km (0.114 R)
• M11: 6,891,525 km (0.109 R)
• M12: 8,178,067 km (0.096 R)
• M13: 8,666,354 km (0.071 R)
• M14: 9,253,825 km (0.11 R)
• M15: 11,638,864 km (0.067 R)
• M16: 12,209,281 km (0.028 R)
• M17: 14,139,841 km (0.11 R)
• M18: 18,856,363 km (0.049 R)
• M19: 19,844,457 km (0.107 R)
• M20: 22,356,953 km (0.095 R)
• M21: 25,947,302 km (0.104 R)
• M22: 28,005,769 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 10.9

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.51 AU - 4.59 AU

Year: 6583 Days

Day: 14.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 88,689,603 km

• M1: 135,685 km (0.098 R)
• M2: 630,705 km (0.085 R)
• M3: 1,090,419 km (0.095 R)
• M4: 1,901,838 km (0.084 R)
• M5: 2,475,695 km (0.063 R)
• M6: 3,470,371 km (0.116 R)
• M7: 4,384,414 km (0.06 R)
• M8: 4,741,355 km (0.118 R)
• M9: 6,030,141 km (0.103 R)
• M10: 8,094,292 km (0.082 R)
• M11: 8,591,555 km (0.104 R)
• M12: 9,831,572 km (0.117 R)
• M13: 10,738,434 km (0.106 R)
• M14: 11,544,767 km (0.085 R)
• M15: 13,911,704 km (0.107 R)
• M16: 14,747,657 km (0.102 R)
• M17: 15,302,516 km (0.111 R)
• M18: 16,257,997 km (0.028 R)
• M19: 20,863,667 km (0.111 R)
• M20: 21,720,713 km (0.03 R)
• M21: 25,036,101 km (0.067 R)
• M22: 27,087,836 km (0.093 R)
• M23: 31,726,567 km (0.118 R)
• M24: 32,859,621 km (0.103 R)
• M25: 37,548,617 km (0.048 R)
• M26: 38,351,957 km (0.118 R)
• M27: 38,816,010 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.6

Radius: 14.8

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.25 AU - 5.83 AU

Year: 7674 Days

Day: 13.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 150.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 88,689,603 km

• M1: 195,375 km (0.052 R)
• M2: 859,589 km (0.093 R)
• M3: 1,376,749 km (0.112 R)
• M4: 1,847,384 km (0.101 R)
• M5: 2,357,812 km (0.095 R)
• M6: 3,461,246 km (0.096 R)
• M7: 4,041,237 km (0.119 R)
• M8: 6,495,988 km (0.109 R)
• M9: 7,268,811 km (0.091 R)
• M10: 8,394,086 km (0.082 R)
• M11: 10,888,481 km (0.063 R)
• M12: 11,503,927 km (0.084 R)
• M13: 12,748,581 km (0.116 R)
• M14: 14,021,509 km (0.117 R)
• M15: 15,633,426 km (0.085 R)
• M16: 16,887,206 km (0.063 R)
• M17: 17,504,148 km (0.071 R)
• M18: 18,278,466 km (0.105 R)
• M19: 19,445,479 km (0.089 R)
• M20: 22,911,213 km (0.105 R)
• M21: 23,498,235 km (0.08 R)
• M22: 28,082,961 km (0.114 R)
• M23: 30,333,362 km (0.109 R)
• M24: 33,768,877 km (0.094 R)
• M25: 35,413,107 km (0.091 R)
• M26: 37,920,517 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 173.1

Radius: 5.2

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.29 AU - 8.03 AU

Year: 14379 Days

Day: 16.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 88,689,603 km

• M1: 68,965 km (0.06 R)
• M2: 533,616 km (0.086 R)
• M3: 3,600,222 km (0.086 R)
• M4: 3,840,626 km (0.084 R)
• M5: 6,407,277 km (0.082 R)
• M6: 6,869,534 km (0.082 R)
• M7: 8,684,456 km (0.119 R)
• M8: 13,398,135 km (0.112 R)
• M9: 14,812,882 km (0.072 R)
• M10: 14,996,439 km (0.101 R)
• M11: 21,315,303 km (0.056 R)
• M12: 29,493,220 km (0.085 R)
• M13: 30,766,896 km (0.119 R)
• M14: 31,166,024 km (0.049 R)
• M15: 36,118,162 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987

Radius: 3.3

Gravity: 90.63 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.5 AU - 11.2 AU

Year: 20967 Days

Day: 24.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 88,689,603 km

• M1: 40,990 km (0.094 R)
• M2: 152,739 km (0.085 R)
• M3: 358,586 km (0.119 R)
• M4: 524,341 km (0.113 R)
• M5: 850,314 km (0.108 R)
• M6: 1,563,447 km (0.109 R)
• M7: 1,690,755 km (0.063 R)
• M8: 2,071,631 km (0.032 R)
• M9: 2,631,127 km (0.078 R)
• M10: 2,945,881 km (0.06 R)
• M11: 3,255,848 km (0.108 R)
• M12: 3,907,347 km (0.052 R)
• M13: 4,423,011 km (0.091 R)
• M14: 5,757,274 km (0.093 R)
• M15: 5,973,742 km (0.109 R)
• M16: 8,726,193 km (0.027 R)
• M17: 9,541,651 km (0.12 R)
• M18: 12,722,701 km (0.092 R)
• M19: 13,015,912 km (0.093 R)
• M20: 15,860,665 km (0.057 R)
• M21: 17,159,175 km (0.094 R)
• M22: 18,433,300 km (0.058 R)
• M23: 18,998,331 km (0.116 R)
• M24: 20,661,411 km (0.03 R)
• M25: 21,996,871 km (0.078 R)
• M26: 23,498,235 km (0.075 R)
• M27: 23,828,697 km (0.066 R)
• M28: 24,386,099 km (0.119 R)
• M29: 25,643,169 km (0.111 R)
• M30: 27,063,003 km (0.036 R)
• M31: 31,103,791 km (0.108 R)
• M32: 32,853,936 km (0.084 R)
• M33: 34,385,370 km (0.083 R)
• M34: 35,963,627 km (0.062 R)
• M35: 40,197,546 km (0.117 R)
• M36: 41,786,575 km (0.045 R)
• M37: 48,030,341 km (0.033 R)
• M38: 61,488,166 km (0.097 R)
• M39: 78,962,842 km (0.074 R)
• M40: 79,951,385 km (0.063 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 400 - 11,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit