🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.8

Radius: 9.9

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.62 AU

Year: 269 Days

Day: 13.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,612,597 km

• M1: 125,662 km (0.069 R)
• M2: 445,652 km (0.075 R)
• M3: 790,625 km (0.075 R)
• M4: 1,297,762 km (0.108 R)
• M5: 1,660,237 km (0.089 R)
• M6: 1,999,974 km (0.108 R)
• M7: 2,663,889 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.3

Radius: 15

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.53 AU - 0.57 AU

Year: 277 Days

Day: 7.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 78.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,612,597 km

• M1: 187,895 km (0.098 R)
• M2: 835,504 km (0.1 R)
• M3: 1,374,804 km (0.107 R)
• M4: 1,866,084 km (0.075 R)
• M5: 2,799,874 km (0.07 R)
• M6: 3,289,358 km (0.115 R)
• M7: 3,858,578 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.3

Radius: 14.1

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.72 AU - 1.16 AU

Year: 618 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,612,597 km

• M1: 175,329 km (0.051 R)
• M2: 642,822 km (0.086 R)
• M3: 1,126,472 km (0.052 R)
• M4: 1,631,664 km (0.118 R)
• M5: 2,280,320 km (0.081 R)
• M6: 2,827,998 km (0.088 R)
• M7: 3,333,938 km (0.101 R)
• M8: 3,857,830 km (0.117 R)
• M9: 4,562,585 km (0.054 R)
• M10: 5,997,379 km (0.107 R)
• M11: 7,116,820 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.5

Radius: 9.6

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.99 AU - 1.63 AU

Year: 1017 Days

Day: 8.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,612,597 km

• M1: 119,977 km (0.034 R)
• M2: 456,573 km (0.072 R)
• M3: 905,217 km (0.117 R)
• M4: 1,217,577 km (0.101 R)
• M5: 2,541,817 km (0.067 R)
• M6: 3,530,659 km (0.117 R)
• M7: 3,988,130 km (0.091 R)
• M8: 5,622,486 km (0.072 R)
• M9: 6,360,153 km (0.114 R)
• M10: 7,014,943 km (0.086 R)
• M11: 7,922,105 km (0.104 R)
• M12: 8,877,138 km (0.12 R)
• M13: 9,250,684 km (0.109 R)
• M14: 9,876,451 km (0.061 R)
• M15: 10,593,923 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.6

Radius: 9.3

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.44 AU - 1.94 AU

Year: 1490 Days

Day: 12.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,612,597 km

• M1: 115,938 km (0.116 R)
• M2: 570,716 km (0.077 R)
• M3: 1,116,000 km (0.116 R)
• M4: 1,601,296 km (0.106 R)
• M5: 1,928,616 km (0.032 R)
• M6: 2,996,445 km (0.109 R)
• M7: 3,393,777 km (0.101 R)
• M8: 4,249,477 km (0.1 R)
• M9: 4,575,301 km (0.111 R)
• M10: 5,103,980 km (0.087 R)
• M11: 5,418,884 km (0.118 R)
• M12: 6,342,800 km (0.052 R)
• M13: 7,043,367 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873

Radius: 13.8

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.22 AU - 3.34 AU

Year: 3144 Days

Day: 12.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,612,597 km

• M1: 171,738 km (0.084 R)
• M2: 723,904 km (0.042 R)
• M3: 1,284,597 km (0.076 R)
• M4: 1,990,100 km (0.118 R)
• M5: 2,961,140 km (0.104 R)
• M6: 3,643,456 km (0.052 R)
• M7: 4,162,411 km (0.099 R)
• M8: 5,121,184 km (0.111 R)
• M9: 5,857,205 km (0.094 R)
• M10: 7,508,467 km (0.065 R)
• M11: 8,566,572 km (0.083 R)
• M12: 9,225,102 km (0.063 R)
• M13: 10,893,867 km (0.082 R)
• M14: 11,800,130 km (0.03 R)
• M15: 12,802,885 km (0.03 R)
• M16: 13,567,180 km (0.095 R)
• M17: 16,763,788 km (0.041 R)
• M18: 17,217,219 km (0.104 R)
• M19: 18,267,695 km (0.098 R)
• M20: 19,671,671 km (0.09 R)
• M21: 21,944,512 km (0.105 R)
• M22: 23,671,769 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.9

Radius: 11.4

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.72 AU - 4.28 AU

Year: 5426 Days

Day: 13.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 20,612,597 km

• M1: 147,504 km (0.113 R)
• M2: 674,686 km (0.057 R)
• M3: 1,119,890 km (0.102 R)
• M4: 1,596,508 km (0.108 R)
• M5: 2,070,584 km (0.04 R)
• M6: 2,432,461 km (0.103 R)
• M7: 2,818,274 km (0.042 R)
• M8: 3,245,376 km (0.096 R)
• M9: 4,354,495 km (0.11 R)
• M10: 4,766,787 km (0.041 R)
• M11: 5,177,134 km (0.118 R)
• M12: 6,069,036 km (0.109 R)
• M13: 6,956,750 km (0.034 R)
• M14: 9,747,498 km (0.099 R)
• M15: 10,321,056 km (0.044 R)
• M16: 11,681,799 km (0.109 R)
• M17: 12,533,160 km (0.115 R)
• M18: 13,425,511 km (0.094 R)
• M19: 14,247,552 km (0.093 R)
• M20: 14,986,715 km (0.101 R)
• M21: 15,454,358 km (0.063 R)
• M22: 19,208,815 km (0.103 R)
• M23: 20,465,587 km (0.091 R)
• M24: 22,000,312 km (0.052 R)
• M25: 22,528,392 km (0.12 R)
• M26: 23,453,655 km (0.11 R)
• M27: 25,710,638 km (0.104 R)
• M28: 26,891,863 km (0.1 R)
• M29: 29,910,897 km (0.079 R)
• M30: 32,561,173 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380

Radius: 8.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 5.53 AU - 5.67 AU

Year: 8988 Days

Day: 8.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,612,597 km

• M1: 110,702 km (0.091 R)
• M2: 1,158,486 km (0.103 R)
• M3: 1,845,589 km (0.095 R)
• M4: 2,230,355 km (0.081 R)
• M5: 3,162,649 km (0.06 R)
• M6: 4,737,166 km (0.096 R)
• M7: 6,063,351 km (0.091 R)
• M8: 6,812,238 km (0.038 R)
• M9: 7,209,271 km (0.056 R)
• M10: 8,826,574 km (0.092 R)
• M11: 10,816,973 km (0.106 R)
• M12: 15,354,576 km (0.116 R)
• M13: 15,662,747 km (0.065 R)
• M14: 16,101,069 km (0.107 R)
• M15: 19,908,036 km (0.111 R)
• M16: 29,526,581 km (0.042 R)
• M17: 31,071,179 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.3

Radius: 4

Gravity: 36.33 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.77 AU - 6.13 AU

Year: 9844 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 20,612,597 km

• M1: 49,816 km (0.116 R)
• M2: 223,350 km (0.078 R)
• M3: 392,694 km (0.085 R)
• M4: 588,368 km (0.06 R)
• M5: 759,060 km (0.11 R)
• M6: 1,347,727 km (0.1 R)
• M7: 1,589,627 km (0.082 R)
• M8: 1,940,284 km (0.104 R)
• M9: 2,472,554 km (0.067 R)
• M10: 2,793,291 km (0.054 R)
• M11: 2,942,141 km (0.095 R)
• M12: 4,247,383 km (0.106 R)
• M13: 4,559,893 km (0.114 R)
• M14: 4,766,637 km (0.059 R)
• M15: 5,861,245 km (0.111 R)
• M16: 6,615,218 km (0.066 R)
• M17: 7,191,918 km (0.079 R)
• M18: 7,391,481 km (0.074 R)
• M19: 8,400,818 km (0.034 R)
• M20: 8,533,063 km (0.071 R)
• M21: 8,666,803 km (0.084 R)
• M22: 10,433,105 km (0.097 R)
• M23: 10,688,917 km (0.087 R)
• M24: 11,106,744 km (0.05 R)
• M25: 15,435,807 km (0.081 R)
• M26: 16,653,534 km (0.08 R)
• M27: 19,975,205 km (0.104 R)
• M28: 20,211,121 km (0.061 R)
• M29: 21,092,253 km (0.059 R)
• M30: 21,255,165 km (0.065 R)
• M31: 21,666,110 km (0.109 R)
• M32: 24,692,176 km (0.097 R)
• M33: 27,597,666 km (0.089 R)
• M34: 28,086,701 km (0.097 R)
• M35: 31,672,712 km (0.037 R)
• M36: 34,413,195 km (0.082 R)
• M37: 34,979,573 km (0.102 R)
• M38: 38,025,535 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.9

Radius: 3.8

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 10.02 AU - 10.54 AU

Year: 22355 Days

Day: 16.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 73.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 20,612,597 km

• M1: 47,423 km (0.115 R)
• M2: 192,832 km (0.051 R)
• M3: 372,499 km (0.12 R)
• M4: 1,403,378 km (0.076 R)
• M5: 1,933,852 km (0.119 R)
• M6: 2,155,257 km (0.098 R)
• M7: 2,775,340 km (0.094 R)
• M8: 3,196,458 km (0.107 R)
• M9: 4,623,921 km (0.07 R)
• M10: 5,986,608 km (0.066 R)
• M11: 6,177,345 km (0.034 R)
• M12: 10,855,569 km (0.067 R)
• M13: 19,581,464 km (0.117 R)
• M14: 20,428,038 km (0.091 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 17,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit