🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.56 AU - 0.7 AU

Year: 318 Days

Day: 34.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 46.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.51 AU - 0.81 AU

Year: 341 Days

Day: 15.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,894,646 km

• M1: 45,029 km (0.1 R)
• M2: 727,794 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.9

Radius: 12.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.83 AU - 1.17 AU

Year: 636 Days

Day: 9.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,894,646 km

• M1: 157,975 km (0.03 R)
• M2: 564,283 km (0.037 R)
• M3: 1,051,673 km (0.081 R)
• M4: 1,494,932 km (0.077 R)
• M5: 1,897,350 km (0.072 R)
• M6: 2,335,522 km (0.062 R)
• M7: 2,777,135 km (0.053 R)
• M8: 3,420,705 km (0.11 R)
• M9: 3,939,660 km (0.117 R)
• M10: 4,436,774 km (0.117 R)
• M11: 4,832,909 km (0.102 R)
• M12: 5,820,853 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.1

Radius: 12.5

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1 AU - 1.04 AU

Year: 655 Days

Day: 8.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,894,646 km

• M1: 155,432 km (0.087 R)
• M2: 594,801 km (0.109 R)
• M3: 1,041,800 km (0.114 R)
• M4: 1,927,269 km (0.115 R)
• M5: 2,334,624 km (0.076 R)
• M6: 2,949,472 km (0.068 R)
• M7: 3,549,060 km (0.043 R)
• M8: 3,949,833 km (0.084 R)
• M9: 4,680,319 km (0.094 R)
• M10: 5,338,699 km (0.087 R)
• M11: 6,391,270 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.7

Radius: 11.1

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.74 AU - 2.1 AU

Year: 1692 Days

Day: 10.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,894,646 km

• M1: 138,079 km (0.076 R)
• M2: 622,327 km (0.059 R)
• M3: 1,029,682 km (0.077 R)
• M4: 1,535,323 km (0.113 R)
• M5: 1,937,741 km (0.091 R)
• M6: 3,019,783 km (0.118 R)
• M7: 3,687,438 km (0.035 R)
• M8: 4,388,603 km (0.119 R)
• M9: 5,159,182 km (0.087 R)
• M10: 5,659,736 km (0.092 R)
• M11: 6,133,812 km (0.109 R)
• M12: 6,968,867 km (0.118 R)
• M13: 7,358,719 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.2

Radius: 12.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.02 AU - 4.58 AU

Year: 4710 Days

Day: 7.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,894,646 km

• M1: 150,495 km (0.114 R)
• M2: 672,742 km (0.109 R)
• M3: 1,698,684 km (0.073 R)
• M4: 2,277,478 km (0.046 R)
• M5: 4,235,265 km (0.05 R)
• M6: 4,688,696 km (0.098 R)
• M7: 5,981,072 km (0.088 R)
• M8: 6,741,927 km (0.11 R)
• M9: 8,309,713 km (0.079 R)
• M10: 9,942,424 km (0.102 R)
• M11: 11,779,486 km (0.093 R)
• M12: 14,249,796 km (0.064 R)
• M13: 22,468,104 km (0.108 R)
• M14: 25,761,950 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.5

Radius: 5.2

Gravity: 23.43 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.53 AU - 7.01 AU

Year: 11200 Days

Day: 19.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 47,894,646 km

• M1: 64,626 km (0.118 R)
• M2: 237,861 km (0.078 R)
• M3: 449,242 km (0.104 R)
• M4: 622,477 km (0.101 R)
• M5: 1,099,395 km (0.096 R)
• M6: 1,759,720 km (0.072 R)
• M7: 2,450,862 km (0.05 R)
• M8: 3,141,256 km (0.111 R)
• M9: 4,437,671 km (0.107 R)
• M10: 4,709,640 km (0.054 R)
• M11: 5,024,843 km (0.064 R)
• M12: 5,523,901 km (0.11 R)
• M13: 5,803,201 km (0.055 R)
• M14: 7,767,121 km (0.026 R)
• M15: 9,040,947 km (0.111 R)
• M16: 10,134,957 km (0.052 R)
• M17: 10,553,681 km (0.084 R)
• M18: 11,370,037 km (0.114 R)
• M19: 12,762,344 km (0.106 R)
• M20: 12,943,956 km (0.089 R)
• M21: 14,394,756 km (0.101 R)
• M22: 15,328,995 km (0.036 R)
• M23: 15,950,574 km (0.119 R)
• M24: 17,243,847 km (0.089 R)
• M25: 18,143,978 km (0.094 R)
• M26: 20,947,442 km (0.104 R)
• M27: 22,584,043 km (0.052 R)
• M28: 24,583,268 km (0.1 R)
• M29: 27,900,302 km (0.06 R)
• M30: 29,771,622 km (0.087 R)
• M31: 30,521,406 km (0.053 R)
• M32: 35,167,467 km (0.097 R)
• M33: 43,055,015 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.1

Radius: 6.2

Gravity: 24.74 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 7.24 AU - 8.16 AU

Year: 13585 Days

Day: 18.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,894,646 km

• M1: 77,641 km (0.045 R)
• M2: 311,762 km (0.074 R)
• M3: 658,231 km (0.11 R)
• M4: 1,593,816 km (0.072 R)
• M5: 2,674,960 km (0.101 R)
• M6: 3,083,212 km (0.117 R)
• M7: 3,672,029 km (0.112 R)
• M8: 5,142,128 km (0.077 R)
• M9: 5,582,245 km (0.106 R)
• M10: 7,459,399 km (0.072 R)
• M11: 10,977,342 km (0.081 R)
• M12: 11,398,909 km (0.112 R)
• M13: 16,694,374 km (0.099 R)
• M14: 19,518,333 km (0.055 R)
• M15: 20,226,380 km (0.09 R)
• M16: 22,356,953 km (0.097 R)
• M17: 28,950,778 km (0.063 R)
• M18: 36,332,835 km (0.118 R)
• M19: 41,314,444 km (0.084 R)
• M20: 42,040,293 km (0.115 R)
• M21: 43,517,871 km (0.066 R)
• M22: 47,362,237 km (0.105 R)
• M23: 56,071,676 km (0.102 R)
• M24: 57,680,002 km (0.114 R)
• M25: 64,809,986 km (0.089 R)
• M26: 65,200,736 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 871.5

Radius: 4

Gravity: 54.47 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.31 AU - 11.23 AU

Year: 19417 Days

Day: 23 Hours

Environment

Temp: -227 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 47,894,646 km

• M1: 49,816 km (0.088 R)
• M2: 393,143 km (0.05 R)
• M3: 787,334 km (0.094 R)
• M4: 1,437,187 km (0.067 R)
• M5: 2,187,719 km (0.031 R)
• M6: 3,396,021 km (0.12 R)
• M7: 4,108,706 km (0.103 R)
• M8: 4,553,011 km (0.089 R)
• M9: 6,120,946 km (0.114 R)
• M10: 6,517,830 km (0.097 R)
• M11: 7,265,221 km (0.083 R)
• M12: 9,040,050 km (0.053 R)
• M13: 10,392,414 km (0.114 R)
• M14: 11,941,500 km (0.113 R)
• M15: 16,058,135 km (0.104 R)
• M16: 16,473,568 km (0.079 R)
• M17: 16,726,239 km (0.053 R)
• M18: 19,584,456 km (0.046 R)
• M19: 21,828,872 km (0.113 R)
• M20: 23,381,399 km (0.081 R)
• M21: 25,228,335 km (0.111 R)
• M22: 26,589,077 km (0.062 R)
• M23: 27,053,279 km (0.085 R)
• M24: 29,209,433 km (0.12 R)
• M25: 30,963,468 km (0.081 R)
• M26: 39,880,848 km (0.086 R)
• M27: 40,949,126 km (0.085 R)
• M28: 41,103,212 km (0.086 R)
• M29: 42,824,485 km (0.109 R)
• M30: 53,985,384 km (0.102 R)
• M31: 61,532,596 km (0.059 R)
• M32: 63,163,063 km (0.097 R)
• M33: 68,226,652 km (0.118 R)
• M34: 74,697,807 km (0.045 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.6

Radius: 5

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 9.5 AU - 10.1 AU

Year: 19506 Days

Day: 18.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,894,646 km

• M1: 62,233 km (0.101 R)
• M2: 236,813 km (0.084 R)
• M3: 550,969 km (0.118 R)
• M4: 809,624 km (0.069 R)
• M5: 1,067,830 km (0.066 R)
• M6: 1,265,299 km (0.119 R)
• M7: 1,446,163 km (0.106 R)
• M8: 1,614,909 km (0.107 R)
• M9: 1,860,399 km (0.027 R)
• M10: 6,077,114 km (0.1 R)
• M11: 6,370,027 km (0.08 R)
• M12: 6,749,108 km (0.091 R)
• M13: 7,427,983 km (0.05 R)
• M14: 8,507,481 km (0.074 R)
• M15: 12,425,599 km (0.07 R)
• M16: 16,680,611 km (0.1 R)
• M17: 19,132,371 km (0.074 R)
• M18: 21,645,017 km (0.113 R)
• M19: 25,765,840 km (0.118 R)
• M20: 30,274,570 km (0.05 R)
• M21: 33,329,957 km (0.068 R)
• M22: 38,412,544 km (0.099 R)
• M23: 41,592,696 km (0.089 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 16,912 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit