🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.4

Radius: 11.2

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.63 AU - 0.87 AU

Year: 441 Days

Day: 7.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,517,565 km

• M1: 139,276 km (0.101 R)
• M2: 534,812 km (0.101 R)
• M3: 1,212,491 km (0.08 R)
• M4: 1,760,917 km (0.049 R)
• M5: 2,152,265 km (0.12 R)
• M6: 2,819,621 km (0.105 R)
• M7: 3,235,952 km (0.056 R)
• M8: 4,153,585 km (0.107 R)
• M9: 5,097,398 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.9

Radius: 15

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.9 AU - 0.94 AU

Year: 599 Days

Day: 5.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,517,565 km

• M1: 186,549 km (0.096 R)
• M2: 658,829 km (0.114 R)
• M3: 1,204,263 km (0.112 R)
• M4: 1,718,580 km (0.067 R)
• M5: 2,194,601 km (0.099 R)
• M6: 2,664,637 km (0.062 R)
• M7: 3,588,703 km (0.098 R)
• M8: 4,234,368 km (0.066 R)
• M9: 5,272,128 km (0.069 R)
• M10: 6,532,341 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.2

Radius: 12.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.89 AU - 1.29 AU

Year: 772 Days

Day: 7.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,517,565 km

• M1: 158,275 km (0.108 R)
• M2: 586,124 km (0.049 R)
• M3: 1,143,975 km (0.118 R)
• M4: 1,820,905 km (0.107 R)
• M5: 2,644,741 km (0.105 R)
• M6: 3,119,116 km (0.101 R)
• M7: 3,730,971 km (0.086 R)
• M8: 4,977,720 km (0.115 R)
• M9: 5,491,289 km (0.103 R)
• M10: 6,040,164 km (0.048 R)
• M11: 6,849,339 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.1

Radius: 10.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.92 AU - 1.38 AU

Year: 836 Days

Day: 5.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,517,565 km

• M1: 164,558 km (0.053 R)
• M2: 539,749 km (0.088 R)
• M3: 1,284,747 km (0.117 R)
• M4: 2,431,265 km (0.076 R)
• M5: 3,009,610 km (0.044 R)
• M6: 3,688,934 km (0.081 R)
• M7: 4,467,441 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.3

Radius: 10.1

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.45 AU - 2.31 AU

Year: 1748 Days

Day: 6.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,517,565 km

• M1: 125,662 km (0.099 R)
• M2: 714,031 km (0.092 R)
• M3: 1,162,076 km (0.053 R)
• M4: 1,705,117 km (0.093 R)
• M5: 2,111,724 km (0.112 R)
• M6: 2,433,209 km (0.108 R)
• M7: 2,787,607 km (0.106 R)
• M8: 5,615,306 km (0.106 R)
• M9: 6,635,713 km (0.077 R)
• M10: 7,119,063 km (0.044 R)
• M11: 7,750,067 km (0.089 R)
• M12: 8,391,543 km (0.115 R)
• M13: 8,793,213 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435

Radius: 11.4

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.77 AU - 3.27 AU

Year: 3560 Days

Day: 10.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,517,565 km

• M1: 141,819 km (0.076 R)
• M2: 696,677 km (0.053 R)
• M3: 1,076,805 km (0.025 R)
• M4: 1,610,720 km (0.074 R)
• M5: 2,208,065 km (0.115 R)
• M6: 2,664,787 km (0.079 R)
• M7: 3,098,770 km (0.086 R)
• M8: 3,751,017 km (0.041 R)
• M9: 4,319,938 km (0.039 R)
• M10: 6,077,264 km (0.109 R)
• M11: 7,622,460 km (0.068 R)
• M12: 8,881,626 km (0.09 R)
• M13: 9,782,504 km (0.108 R)
• M14: 13,351,161 km (0.114 R)
• M15: 16,833,201 km (0.037 R)
• M16: 17,430,546 km (0.112 R)
• M17: 17,929,754 km (0.089 R)
• M18: 19,073,429 km (0.113 R)
• M19: 20,264,976 km (0.118 R)
• M20: 20,631,940 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.5

Radius: 9.9

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 3.65 AU - 4.11 AU

Year: 5184 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,517,565 km

• M1: 123,119 km (0.12 R)
• M2: 454,927 km (0.085 R)
• M3: 872,006 km (0.07 R)
• M4: 1,217,278 km (0.06 R)
• M5: 1,554,771 km (0.069 R)
• M6: 1,926,671 km (0.077 R)
• M7: 2,458,491 km (0.101 R)
• M8: 3,045,962 km (0.09 R)
• M9: 5,207,951 km (0.102 R)
• M10: 5,987,505 km (0.109 R)
• M11: 7,702,645 km (0.119 R)
• M12: 9,000,556 km (0.063 R)
• M13: 10,809,344 km (0.11 R)
• M14: 11,188,574 km (0.055 R)
• M15: 11,576,930 km (0.103 R)
• M16: 12,074,792 km (0.097 R)
• M17: 14,042,303 km (0.117 R)
• M18: 17,607,819 km (0.119 R)
• M19: 19,494,099 km (0.094 R)
• M20: 22,264,352 km (0.085 R)
• M21: 32,426,086 km (0.088 R)
• M22: 33,415,826 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.2

Radius: 10

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.33 AU - 5.29 AU

Year: 6069 Days

Day: 8.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,517,565 km

• M1: 148,999 km (0.078 R)
• M2: 482,453 km (0.116 R)
• M3: 910,153 km (0.089 R)
• M4: 1,251,087 km (0.107 R)
• M5: 1,652,458 km (0.109 R)
• M6: 3,048,356 km (0.048 R)
• M7: 4,047,969 km (0.102 R)
• M8: 4,399,823 km (0.099 R)
• M9: 5,079,446 km (0.104 R)
• M10: 9,095,850 km (0.117 R)
• M11: 11,190,070 km (0.092 R)
• M12: 12,771,170 km (0.112 R)
• M13: 14,322,650 km (0.053 R)
• M14: 16,880,025 km (0.057 R)
• M15: 20,376,726 km (0.109 R)
• M16: 21,114,842 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 539.4

Radius: 5.7

Gravity: 16.6 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 8.86 AU - 8.94 AU

Year: 18008 Days

Day: 22.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 65,517,565 km

• M1: 70,909 km (0.078 R)
• M2: 296,204 km (0.08 R)
• M3: 563,685 km (0.105 R)
• M4: 1,143,377 km (0.053 R)
• M5: 1,570,030 km (0.076 R)
• M6: 2,116,511 km (0.082 R)
• M7: 2,852,981 km (0.1 R)
• M8: 3,253,305 km (0.107 R)
• M9: 4,228,085 km (0.034 R)
• M10: 4,954,382 km (0.114 R)
• M11: 6,276,528 km (0.031 R)
• M12: 7,960,701 km (0.115 R)
• M13: 9,704,563 km (0.114 R)
• M14: 12,448,039 km (0.116 R)
• M15: 13,173,439 km (0.043 R)
• M16: 16,202,945 km (0.118 R)
• M17: 18,378,098 km (0.107 R)
• M18: 18,631,068 km (0.106 R)
• M19: 20,020,384 km (0.087 R)
• M20: 22,519,117 km (0.045 R)
• M21: 22,808,888 km (0.11 R)
• M22: 25,740,558 km (0.046 R)
• M23: 25,951,640 km (0.029 R)
• M24: 29,371,148 km (0.083 R)
• M25: 30,300,002 km (0.094 R)
• M26: 30,535,319 km (0.061 R)
• M27: 34,594,956 km (0.025 R)
• M28: 43,615,110 km (0.076 R)
• M29: 52,205,618 km (0.062 R)
• M30: 57,612,833 km (0.107 R)
• M31: 61,857,523 km (0.105 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 553 - 11,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit