🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.3

Radius: 8.1

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.77 AU - 1.21 AU

Year: 692 Days

Day: 5.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,884,560 km

• M1: 108,309 km (0.092 R)
• M2: 416,630 km (0.08 R)
• M3: 717,621 km (0.088 R)
• M4: 1,050,626 km (0.093 R)
• M5: 1,419,085 km (0.091 R)
• M6: 1,700,180 km (0.085 R)
• M7: 2,018,524 km (0.107 R)
• M8: 2,366,190 km (0.105 R)
• M9: 2,920,001 km (0.103 R)
• M10: 3,260,486 km (0.071 R)
• M11: 5,508,044 km (0.047 R)
• M12: 5,832,821 km (0.086 R)
• M13: 6,170,314 km (0.098 R)
• M14: 6,499,878 km (0.119 R)
• M15: 7,352,436 km (0.112 R)
• M16: 7,817,686 km (0.087 R)
• M17: 8,376,733 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 14

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.01 AU - 1.13 AU

Year: 778 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,884,560 km

• M1: 174,132 km (0.113 R)
• M2: 634,893 km (0.12 R)
• M3: 1,146,368 km (0.089 R)
• M4: 3,331,245 km (0.119 R)
• M5: 4,537,004 km (0.096 R)
• M6: 5,107,421 km (0.078 R)
• M7: 6,846,795 km (0.027 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.1

Radius: 12

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.59 AU - 1.59 AU

Year: 1409 Days

Day: 14.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,884,560 km

• M1: 149,448 km (0.095 R)
• M2: 534,364 km (0.116 R)
• M3: 1,006,046 km (0.065 R)
• M4: 1,395,449 km (0.055 R)
• M5: 1,859,651 km (0.109 R)
• M6: 2,449,665 km (0.041 R)
• M7: 3,272,154 km (0.113 R)
• M8: 3,911,835 km (0.071 R)
• M9: 5,035,764 km (0.078 R)
• M10: 5,581,945 km (0.066 R)
• M11: 7,169,478 km (0.118 R)
• M12: 8,330,357 km (0.102 R)
• M13: 8,900,325 km (0.116 R)
• M14: 9,700,674 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.7

Radius: 13.1

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.76 AU - 1.8 AU

Year: 1669 Days

Day: 10.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,884,560 km

• M1: 162,912 km (0.074 R)
• M2: 705,055 km (0.062 R)
• M3: 1,117,047 km (0.042 R)
• M4: 1,707,809 km (0.104 R)
• M5: 2,189,066 km (0.112 R)
• M6: 2,948,873 km (0.041 R)
• M7: 3,383,156 km (0.11 R)
• M8: 4,209,684 km (0.068 R)
• M9: 4,951,690 km (0.12 R)
• M10: 5,826,538 km (0.059 R)
• M11: 7,623,956 km (0.088 R)
• M12: 9,400,581 km (0.081 R)
• M13: 11,551,648 km (0.057 R)
• M14: 12,088,406 km (0.067 R)
• M15: 14,272,983 km (0.103 R)
• M16: 14,846,841 km (0.112 R)
• M17: 15,298,626 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.9

Radius: 11.8

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.91 AU - 2.51 AU

Year: 2309 Days

Day: 13.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,884,560 km

• M1: 146,756 km (0.041 R)
• M2: 640,728 km (0.104 R)
• M3: 1,369,569 km (0.114 R)
• M4: 1,952,402 km (0.082 R)
• M5: 2,487,364 km (0.074 R)
• M6: 3,118,667 km (0.079 R)
• M7: 5,318,952 km (0.051 R)
• M8: 5,889,519 km (0.09 R)
• M9: 8,307,918 km (0.097 R)
• M10: 8,880,878 km (0.096 R)
• M11: 12,029,763 km (0.052 R)
• M12: 13,484,154 km (0.089 R)
• M13: 15,474,853 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.3

Radius: 10.6

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.99 AU - 4.59 AU

Year: 5186 Days

Day: 8.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,884,560 km

• M1: 131,796 km (0.045 R)
• M2: 553,063 km (0.064 R)
• M3: 1,316,012 km (0.088 R)
• M4: 2,091,827 km (0.052 R)
• M5: 2,699,494 km (0.069 R)
• M6: 3,073,339 km (0.045 R)
• M7: 3,860,822 km (0.039 R)
• M8: 4,505,439 km (0.085 R)
• M9: 5,328,227 km (0.115 R)
• M10: 6,432,260 km (0.041 R)
• M11: 10,313,128 km (0.079 R)
• M12: 11,552,995 km (0.082 R)
• M13: 11,924,895 km (0.1 R)
• M14: 13,189,147 km (0.102 R)
• M15: 13,905,870 km (0.109 R)
• M16: 15,417,108 km (0.079 R)
• M17: 15,754,750 km (0.106 R)
• M18: 16,679,115 km (0.054 R)
• M19: 17,823,390 km (0.091 R)
• M20: 23,146,979 km (0.12 R)
• M21: 25,340,982 km (0.114 R)
• M22: 27,505,214 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398

Radius: 8.3

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.81 AU - 4.35 AU

Year: 5793 Days

Day: 12.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,884,560 km

• M1: 110,852 km (0.11 R)
• M2: 495,618 km (0.063 R)
• M3: 1,460,823 km (0.079 R)
• M4: 1,849,030 km (0.119 R)
• M5: 2,154,808 km (0.118 R)
• M6: 3,974,516 km (0.101 R)
• M7: 5,848,529 km (0.108 R)
• M8: 7,027,360 km (0.089 R)
• M9: 8,431,785 km (0.118 R)
• M10: 9,724,011 km (0.074 R)
• M11: 10,098,305 km (0.087 R)
• M12: 13,964,662 km (0.113 R)
• M13: 15,936,960 km (0.113 R)
• M14: 20,357,727 km (0.094 R)
• M15: 20,628,649 km (0.12 R)
• M16: 24,987,781 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.6

Radius: 8.2

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.86 AU - 5.76 AU

Year: 7415 Days

Day: 5.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 60,884,560 km

• M1: 102,026 km (0.11 R)
• M2: 386,411 km (0.101 R)
• M3: 848,669 km (0.108 R)
• M4: 1,106,875 km (0.082 R)
• M5: 1,406,669 km (0.086 R)
• M6: 1,718,580 km (0.05 R)
• M7: 2,377,409 km (0.1 R)
• M8: 2,726,421 km (0.106 R)
• M9: 3,459,451 km (0.109 R)
• M10: 4,135,633 km (0.12 R)
• M11: 4,397,429 km (0.103 R)
• M12: 6,009,047 km (0.057 R)
• M13: 6,518,877 km (0.111 R)
• M14: 7,205,830 km (0.12 R)
• M15: 9,024,791 km (0.114 R)
• M16: 9,288,382 km (0.115 R)
• M17: 10,930,817 km (0.098 R)
• M18: 11,230,761 km (0.053 R)
• M19: 16,349,701 km (0.118 R)
• M20: 18,026,992 km (0.116 R)
• M21: 19,303,511 km (0.078 R)
• M22: 23,000,523 km (0.072 R)
• M23: 28,066,057 km (0.115 R)
• M24: 28,818,384 km (0.043 R)
• M25: 29,972,083 km (0.091 R)
• M26: 32,166,534 km (0.065 R)
• M27: 37,888,952 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.1

Radius: 4.6

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 5.39 AU - 6.23 AU

Year: 9844 Days

Day: 23 Hours

Environment

Temp: -221 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,884,560 km

• M1: 57,894 km (0.119 R)
• M2: 363,074 km (0.108 R)
• M3: 510,877 km (0.101 R)
• M4: 1,322,595 km (0.114 R)
• M5: 2,138,053 km (0.103 R)
• M6: 2,652,370 km (0.115 R)
• M7: 3,149,933 km (0.099 R)
• M8: 3,603,214 km (0.099 R)
• M9: 5,688,160 km (0.055 R)
• M10: 6,480,281 km (0.087 R)
• M11: 7,889,792 km (0.076 R)
• M12: 11,209,368 km (0.112 R)
• M13: 12,211,674 km (0.117 R)
• M14: 16,076,386 km (0.028 R)
• M15: 18,499,123 km (0.117 R)
• M16: 19,764,721 km (0.098 R)
• M17: 22,256,423 km (0.05 R)
• M18: 23,832,886 km (0.112 R)
• M19: 24,498,746 km (0.046 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.1

Radius: 6.8

Gravity: 14.45 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.36 AU - 7.68 AU

Year: 14496 Days

Day: 18.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,884,560 km

• M1: 85,271 km (0.099 R)
• M2: 362,625 km (0.111 R)
• M3: 600,785 km (0.113 R)
• M4: 914,641 km (0.084 R)
• M5: 1,294,620 km (0.06 R)
• M6: 1,567,486 km (0.038 R)
• M7: 1,809,685 km (0.096 R)
• M8: 2,432,312 km (0.095 R)
• M9: 2,669,125 km (0.116 R)
• M10: 4,274,909 km (0.039 R)
• M11: 8,055,247 km (0.077 R)
• M12: 8,832,408 km (0.12 R)
• M13: 13,548,481 km (0.07 R)
• M14: 17,014,065 km (0.096 R)
• M15: 37,423,403 km (0.084 R)
• M16: 43,673,154 km (0.107 R)
• M17: 50,584,126 km (0.026 R)
• M18: 56,437,592 km (0.116 R)
• M19: 59,257,661 km (0.091 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 16,204 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit