🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.1

Radius: 13.2

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.54 AU - 0.74 AU

Year: 360 Days

Day: 7.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,511,111 km

• M1: 164,109 km (0.075 R)
• M2: 592,557 km (0.116 R)
• M3: 1,024,895 km (0.074 R)
• M4: 1,498,671 km (0.113 R)
• M5: 1,910,814 km (0.047 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.9

Radius: 12.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.62 AU - 0.74 AU

Year: 394 Days

Day: 14.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,511,111 km

• M1: 155,731 km (0.114 R)
• M2: 652,546 km (0.065 R)
• M3: 1,073,814 km (0.051 R)
• M4: 1,511,686 km (0.108 R)
• M5: 1,945,221 km (0.096 R)
• M6: 2,754,994 km (0.077 R)
• M7: 3,377,770 km (0.038 R)
• M8: 3,939,660 km (0.093 R)
• M9: 4,507,683 km (0.109 R)
• M10: 4,965,453 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.5

Radius: 9.4

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.7 AU - 0.86 AU

Year: 484 Days

Day: 6.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,511,111 km

• M1: 118,930 km (0.12 R)
• M2: 544,536 km (0.112 R)
• M3: 1,050,626 km (0.1 R)
• M4: 1,462,618 km (0.118 R)
• M5: 2,033,035 km (0.049 R)
• M6: 2,357,962 km (0.048 R)
• M7: 2,974,454 km (0.103 R)
• M8: 3,268,414 km (0.103 R)
• M9: 3,786,472 km (0.056 R)
• M10: 4,132,940 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.8

Radius: 12.7

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.7 AU - 3.54 AU

Year: 3874 Days

Day: 7.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,511,111 km

• M1: 158,125 km (0.092 R)
• M2: 604,375 km (0.073 R)
• M3: 1,041,500 km (0.107 R)
• M4: 1,653,505 km (0.113 R)
• M5: 2,308,594 km (0.084 R)
• M6: 2,761,577 km (0.061 R)
• M7: 3,972,871 km (0.086 R)
• M8: 4,839,940 km (0.113 R)
• M9: 6,020,417 km (0.103 R)
• M10: 8,071,703 km (0.106 R)
• M11: 9,423,619 km (0.062 R)
• M12: 10,075,267 km (0.114 R)
• M13: 11,046,008 km (0.113 R)
• M14: 12,481,549 km (0.091 R)
• M15: 13,173,738 km (0.086 R)
• M16: 14,584,446 km (0.095 R)
• M17: 16,093,739 km (0.083 R)
• M18: 16,637,527 km (0.06 R)
• M19: 18,816,869 km (0.089 R)
• M20: 19,481,682 km (0.083 R)
• M21: 22,165,468 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.9

Radius: 9.1

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.99 AU - 3.91 AU

Year: 4504 Days

Day: 11.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,511,111 km

• M1: 114,592 km (0.084 R)
• M2: 512,672 km (0.056 R)
• M3: 835,055 km (0.115 R)
• M4: 1,611,468 km (0.117 R)
• M5: 2,182,184 km (0.065 R)
• M6: 2,467,467 km (0.093 R)
• M7: 3,146,492 km (0.102 R)
• M8: 3,688,485 km (0.112 R)
• M9: 4,134,885 km (0.102 R)
• M10: 4,493,172 km (0.062 R)
• M11: 4,871,954 km (0.076 R)
• M12: 5,363,832 km (0.118 R)
• M13: 5,937,988 km (0.107 R)
• M14: 6,265,608 km (0.06 R)
• M15: 7,699,354 km (0.062 R)
• M16: 8,461,555 km (0.088 R)
• M17: 8,812,511 km (0.099 R)
• M18: 9,749,742 km (0.108 R)
• M19: 11,509,013 km (0.113 R)
• M20: 12,710,433 km (0.083 R)
• M21: 13,599,793 km (0.117 R)
• M22: 14,260,118 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.2

Radius: 10.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.54 AU - 4.88 AU

Year: 6072 Days

Day: 12.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,511,111 km

• M1: 132,544 km (0.081 R)
• M2: 786,286 km (0.089 R)
• M3: 1,180,626 km (0.093 R)
• M4: 2,521,472 km (0.089 R)
• M5: 3,923,204 km (0.093 R)
• M6: 4,272,814 km (0.034 R)
• M7: 4,685,854 km (0.109 R)
• M8: 5,496,525 km (0.113 R)
• M9: 6,530,845 km (0.069 R)
• M10: 7,961,898 km (0.053 R)
• M11: 8,524,984 km (0.103 R)
• M12: 8,915,136 km (0.074 R)
• M13: 9,283,146 km (0.091 R)
• M14: 10,633,117 km (0.118 R)
• M15: 13,196,028 km (0.053 R)
• M16: 16,293,153 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.1

Radius: 3.6

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 7.08 AU - 9.24 AU

Year: 16385 Days

Day: 15.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,511,111 km

• M1: 48,171 km (0.069 R)
• M2: 206,744 km (0.115 R)
• M3: 1,525,749 km (0.096 R)
• M4: 4,510,825 km (0.109 R)
• M5: 4,979,365 km (0.075 R)
• M6: 14,535,378 km (0.112 R)
• M7: 20,087,553 km (0.115 R)
• M8: 24,904,455 km (0.112 R)

Asteroid Belt

Center: 8.8 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 935.7

Radius: 5.9

Gravity: 26.88 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.32 AU - 11.56 AU

Year: 20388 Days

Day: 19.4 Hours

Environment

Temp: -244 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,511,111 km

• M1: 75,397 km (0.075 R)
• M2: 323,281 km (0.087 R)
• M3: 678,127 km (0.087 R)
• M4: 1,360,892 km (0.074 R)
• M5: 1,592,469 km (0.082 R)
• M6: 2,244,566 km (0.047 R)
• M7: 2,521,472 km (0.103 R)
• M8: 4,193,976 km (0.113 R)
• M9: 4,651,447 km (0.085 R)
• M10: 5,102,634 km (0.032 R)
• M11: 8,553,408 km (0.067 R)
• M12: 9,404,620 km (0.074 R)
• M13: 9,700,524 km (0.098 R)
• M14: 16,829,760 km (0.077 R)
• M15: 17,531,524 km (0.063 R)
• M16: 19,561,866 km (0.03 R)
• M17: 25,199,163 km (0.055 R)
• M18: 26,349,720 km (0.115 R)
• M19: 35,401,588 km (0.046 R)
• M20: 41,561,280 km (0.1 R)
• M21: 48,223,023 km (0.079 R)
• M22: 61,120,604 km (0.109 R)
• M23: 82,974,309 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.5

Radius: 3.7

Gravity: 22.46 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 8.22 AU - 11.78 AU

Year: 22228 Days

Day: 20.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,511,111 km

• M1: 48,619 km (0.111 R)
• M2: 189,690 km (0.086 R)
• M3: 576,251 km (0.093 R)
• M4: 2,150,918 km (0.084 R)
• M5: 7,854,187 km (0.11 R)
• M6: 11,252,602 km (0.116 R)
• M7: 22,974,493 km (0.054 R)
• M8: 24,146,892 km (0.118 R)
• M9: 25,153,685 km (0.094 R)
• M10: 28,674,621 km (0.052 R)
• M11: 35,505,110 km (0.108 R)
• M12: 39,225,459 km (0.085 R)
• M13: 41,179,507 km (0.104 R)
• M14: 46,962,960 km (0.115 R)
• M15: 56,704,325 km (0.044 R)
• M16: 60,289,288 km (0.082 R)
• M17: 61,578,822 km (0.038 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: 479 - 16,850 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit