🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.4

Radius: 8.6

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.6 AU - 0.62 AU

Year: 323 Days

Day: 6.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,292,186 km

• M1: 106,962 km (0.113 R)
• M2: 445,353 km (0.112 R)
• M3: 750,233 km (0.109 R)
• M4: 1,071,420 km (0.072 R)
• M5: 2,296,627 km (0.087 R)
• M6: 2,770,702 km (0.119 R)
• M7: 3,376,873 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.3

Radius: 13.1

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.56 AU - 0.84 AU

Year: 397 Days

Day: 11.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,292,186 km

• M1: 163,062 km (0.03 R)
• M2: 721,361 km (0.046 R)
• M3: 1,162,076 km (0.087 R)
• M4: 1,796,521 km (0.08 R)
• M5: 2,234,693 km (0.06 R)
• M6: 2,654,764 km (0.051 R)
• M7: 3,072,740 km (0.099 R)
• M8: 3,559,382 km (0.117 R)
• M9: 5,305,937 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.3

Radius: 10.1

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.63 AU - 0.91 AU

Year: 458 Days

Day: 7.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,292,186 km

• M1: 125,662 km (0.077 R)
• M2: 539,749 km (0.086 R)
• M3: 860,337 km (0.101 R)
• M4: 1,391,260 km (0.081 R)
• M5: 1,875,209 km (0.092 R)
• M6: 2,239,779 km (0.098 R)
• M7: 2,778,481 km (0.112 R)
• M8: 3,279,634 km (0.113 R)
• M9: 3,813,399 km (0.095 R)
• M10: 6,039,715 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596

Radius: 10.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.37 AU - 1.99 AU

Year: 1477 Days

Day: 5.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,292,186 km

• M1: 131,796 km (0.094 R)
• M2: 501,602 km (0.064 R)
• M3: 1,931,608 km (0.097 R)
• M4: 2,920,001 km (0.062 R)
• M5: 3,448,979 km (0.062 R)
• M6: 3,937,566 km (0.103 R)
• M7: 4,622,574 km (0.089 R)
• M8: 5,074,659 km (0.052 R)
• M9: 5,448,803 km (0.068 R)
• M10: 6,634,965 km (0.083 R)
• M11: 7,134,322 km (0.09 R)
• M12: 8,180,311 km (0.07 R)
• M13: 10,608,434 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.8

Radius: 10.1

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.74 AU - 1.76 AU

Year: 1570 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,292,186 km

• M1: 125,662 km (0.089 R)
• M2: 447,148 km (0.086 R)
• M3: 1,246,599 km (0.098 R)
• M4: 1,627,326 km (0.057 R)
• M5: 2,240,827 km (0.118 R)
• M6: 2,561,415 km (0.081 R)
• M7: 3,248,817 km (0.104 R)
• M8: 3,696,863 km (0.119 R)
• M9: 4,091,951 km (0.117 R)
• M10: 4,615,394 km (0.082 R)
• M11: 9,682,423 km (0.115 R)
• M12: 10,507,006 km (0.112 R)
• M13: 11,678,358 km (0.082 R)
• M14: 13,891,957 km (0.098 R)
• M15: 14,985,219 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.8

Radius: 13.1

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.84 AU - 2.2 AU

Year: 1947 Days

Day: 12.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,292,186 km

• M1: 163,211 km (0.098 R)
• M2: 627,264 km (0.086 R)
• M3: 1,244,654 km (0.089 R)
• M4: 1,740,422 km (0.11 R)
• M5: 2,679,747 km (0.062 R)
• M6: 3,128,241 km (0.103 R)
• M7: 4,102,123 km (0.112 R)
• M8: 5,134,049 km (0.099 R)
• M9: 8,036,547 km (0.112 R)
• M10: 11,580,670 km (0.113 R)
• M11: 13,457,525 km (0.092 R)
• M12: 14,649,371 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132

Radius: 8.5

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.98 AU - 4.02 AU

Year: 5426 Days

Day: 13.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,292,186 km

• M1: 173,833 km (0.11 R)
• M2: 967,300 km (0.076 R)
• M3: 1,331,271 km (0.056 R)
• M4: 2,169,169 km (0.059 R)
• M5: 2,534,936 km (0.05 R)
• M6: 3,373,582 km (0.026 R)
• M7: 4,262,343 km (0.094 R)
• M8: 4,555,106 km (0.081 R)
• M9: 7,258,937 km (0.083 R)
• M10: 10,092,321 km (0.079 R)
• M11: 11,794,147 km (0.092 R)
• M12: 12,627,855 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.3

Radius: 4

Gravity: 57.27 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 5.68 AU - 9.44 AU

Year: 14099 Days

Day: 22 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 39,292,186 km

• M1: 49,816 km (0.04 R)
• M2: 337,044 km (0.098 R)
• M3: 557,102 km (0.108 R)
• M4: 921,972 km (0.061 R)
• M5: 1,061,846 km (0.11 R)
• M6: 1,701,825 km (0.057 R)
• M7: 1,859,352 km (0.105 R)
• M8: 2,163,484 km (0.077 R)
• M9: 2,522,071 km (0.114 R)
• M10: 2,750,955 km (0.091 R)
• M11: 2,943,787 km (0.052 R)
• M12: 3,383,605 km (0.098 R)
• M13: 4,589,663 km (0.112 R)
• M14: 4,930,746 km (0.116 R)
• M15: 5,325,385 km (0.04 R)
• M16: 7,480,193 km (0.092 R)
• M17: 8,697,321 km (0.093 R)
• M18: 15,711,367 km (0.059 R)
• M19: 16,879,726 km (0.119 R)
• M20: 17,120,130 km (0.113 R)
• M21: 18,781,713 km (0.083 R)
• M22: 22,518,070 km (0.117 R)
• M23: 27,047,445 km (0.119 R)
• M24: 27,376,710 km (0.096 R)
• M25: 28,720,398 km (0.069 R)
• M26: 29,408,548 km (0.118 R)
• M27: 29,990,184 km (0.106 R)
• M28: 32,394,073 km (0.036 R)
• M29: 44,502,375 km (0.064 R)
• M30: 46,513,269 km (0.088 R)
• M31: 46,985,699 km (0.051 R)
• M32: 51,048,478 km (0.072 R)
• M33: 51,383,278 km (0.09 R)
• M34: 53,422,746 km (0.091 R)
• M35: 59,678,331 km (0.047 R)
• M36: 61,173,711 km (0.1 R)

Asteroid Belt

Center: 8.34 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.1

Radius: 4.3

Gravity: 29.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 7.72 AU - 10.52 AU

Year: 18680 Days

Day: 24.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 39,292,186 km

• M1: 54,005 km (0.1 R)
• M2: 201,060 km (0.096 R)
• M3: 438,920 km (0.103 R)
• M4: 666,907 km (0.112 R)
• M5: 1,154,596 km (0.081 R)
• M6: 1,885,980 km (0.082 R)
• M7: 2,094,221 km (0.082 R)
• M8: 2,296,926 km (0.108 R)
• M9: 2,512,496 km (0.106 R)
• M10: 3,034,443 km (0.054 R)
• M11: 3,799,188 km (0.103 R)
• M12: 4,321,882 km (0.078 R)
• M13: 4,961,114 km (0.115 R)
• M14: 6,258,726 km (0.08 R)
• M15: 9,285,390 km (0.083 R)
• M16: 11,665,492 km (0.103 R)
• M17: 13,300,148 km (0.115 R)
• M18: 14,207,908 km (0.112 R)
• M19: 14,423,030 km (0.066 R)
• M20: 14,713,250 km (0.115 R)
• M21: 17,258,658 km (0.081 R)
• M22: 21,088,812 km (0.094 R)
• M23: 22,806,495 km (0.069 R)
• M24: 27,950,417 km (0.099 R)
• M25: 28,743,136 km (0.095 R)
• M26: 31,574,725 km (0.107 R)
• M27: 33,435,722 km (0.07 R)
• M28: 33,689,291 km (0.108 R)
• M29: 36,429,325 km (0.05 R)
• M30: 37,922,163 km (0.119 R)
• M31: 38,614,053 km (0.086 R)
• M32: 54,803,086 km (0.068 R)
• M33: 56,043,252 km (0.066 R)
• M34: 64,858,755 km (0.08 R)
• M35: 66,245,976 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.5

Radius: 4.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.79 AU - 10.77 AU

Year: 22355 Days

Day: 20.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,292,186 km

• M1: 59,690 km (0.096 R)
• M2: 392,694 km (0.116 R)
• M3: 581,936 km (0.106 R)
• M4: 1,077,105 km (0.102 R)
• M5: 1,629,121 km (0.08 R)
• M6: 2,589,390 km (0.111 R)
• M7: 3,029,058 km (0.118 R)
• M8: 4,081,180 km (0.088 R)
• M9: 5,639,989 km (0.104 R)
• M10: 7,401,953 km (0.074 R)
• M11: 8,199,459 km (0.041 R)
• M12: 10,010,491 km (0.116 R)
• M13: 11,338,920 km (0.091 R)
• M14: 12,125,506 km (0.116 R)
• M15: 14,764,263 km (0.099 R)
• M16: 16,022,231 km (0.09 R)
• M17: 17,281,845 km (0.093 R)
• M18: 18,821,207 km (0.116 R)
• M19: 22,573,571 km (0.111 R)
• M20: 24,840,128 km (0.03 R)
• M21: 27,810,693 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 13,915 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit