🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.52 AU - 0.64 AU

Year: 285 Days

Day: 43.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 9

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.78 AU - 0.94 AU

Year: 515 Days

Day: 5.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,561,103 km

• M1: 111,899 km (0.086 R)
• M2: 438,920 km (0.096 R)
• M3: 833,709 km (0.092 R)
• M4: 1,192,445 km (0.045 R)
• M5: 1,494,632 km (0.052 R)
• M6: 3,720,798 km (0.066 R)
• M7: 5,430,702 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.5

Radius: 13.9

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.79 AU - 0.97 AU

Year: 533 Days

Day: 7.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,561,103 km

• M1: 172,935 km (0.103 R)
• M2: 644,318 km (0.029 R)
• M3: 1,562,101 km (0.115 R)
• M4: 2,093,772 km (0.05 R)
• M5: 3,984,988 km (0.081 R)
• M6: 4,491,975 km (0.071 R)
• M7: 5,987,505 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358

Radius: 12.9

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.05 AU - 1.53 AU

Year: 946 Days

Day: 13.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,561,103 km

• M1: 160,519 km (0.115 R)
• M2: 568,173 km (0.099 R)
• M3: 1,290,730 km (0.107 R)
• M4: 1,709,006 km (0.072 R)
• M5: 2,162,437 km (0.111 R)
• M6: 2,729,862 km (0.061 R)
• M7: 3,746,828 km (0.105 R)
• M8: 4,152,388 km (0.077 R)
• M9: 4,833,208 km (0.081 R)
• M10: 5,333,463 km (0.069 R)
• M11: 6,643,641 km (0.096 R)
• M12: 7,374,577 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.1

Radius: 11.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.84 AU - 2.72 AU

Year: 2223 Days

Day: 12.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,561,103 km

• M1: 146,456 km (0.115 R)
• M2: 512,822 km (0.077 R)
• M3: 1,394,103 km (0.095 R)
• M4: 1,780,364 km (0.062 R)
• M5: 3,363,858 km (0.05 R)
• M6: 3,919,015 km (0.104 R)
• M7: 4,451,733 km (0.096 R)
• M8: 5,423,372 km (0.105 R)
• M9: 6,112,120 km (0.113 R)
• M10: 6,802,963 km (0.101 R)
• M11: 7,634,279 km (0.108 R)
• M12: 8,059,286 km (0.096 R)
• M13: 8,956,724 km (0.098 R)
• M14: 9,395,494 km (0.064 R)
• M15: 10,026,797 km (0.086 R)
• M16: 10,836,571 km (0.094 R)
• M17: 13,223,853 km (0.12 R)
• M18: 14,563,502 km (0.12 R)
• M19: 15,124,046 km (0.116 R)
• M20: 15,747,270 km (0.06 R)
• M21: 16,739,703 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.2

Radius: 9.6

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.29 AU - 6.05 AU

Year: 7590 Days

Day: 10.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 90,561,103 km

• M1: 119,529 km (0.081 R)
• M2: 774,019 km (0.117 R)
• M3: 1,262,606 km (0.031 R)
• M4: 1,712,447 km (0.099 R)
• M5: 2,031,988 km (0.097 R)
• M6: 2,570,540 km (0.088 R)
• M7: 4,350,156 km (0.059 R)
• M8: 6,139,497 km (0.089 R)
• M9: 6,448,117 km (0.089 R)
• M10: 7,931,829 km (0.084 R)
• M11: 9,507,992 km (0.096 R)
• M12: 10,091,124 km (0.094 R)
• M13: 10,565,948 km (0.113 R)
• M14: 13,319,895 km (0.098 R)
• M15: 17,547,082 km (0.041 R)
• M16: 21,656,087 km (0.085 R)
• M17: 22,665,424 km (0.07 R)
• M18: 24,314,441 km (0.089 R)
• M19: 27,515,237 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 323

Radius: 4.4

Gravity: 16.68 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.65 AU - 11.81 AU

Year: 21127 Days

Day: 23.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,561,103 km

• M1: 56,398 km (0.053 R)
• M2: 199,115 km (0.089 R)
• M3: 656,136 km (0.082 R)
• M4: 821,143 km (0.098 R)
• M5: 968,347 km (0.099 R)
• M6: 3,611,891 km (0.112 R)
• M7: 4,131,594 km (0.114 R)
• M8: 9,295,413 km (0.07 R)
• M9: 12,029,165 km (0.09 R)
• M10: 14,966,220 km (0.1 R)
• M11: 15,547,258 km (0.098 R)
• M12: 15,694,761 km (0.111 R)
• M13: 16,294,350 km (0.119 R)
• M14: 17,222,006 km (0.068 R)
• M15: 19,437,251 km (0.059 R)
• M16: 19,780,878 km (0.065 R)
• M17: 22,020,358 km (0.054 R)
• M18: 28,073,088 km (0.069 R)
• M19: 30,428,506 km (0.111 R)
• M20: 39,363,688 km (0.051 R)
• M21: 39,500,570 km (0.093 R)
• M22: 43,028,985 km (0.095 R)
• M23: 46,455,375 km (0.052 R)
• M24: 48,943,487 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.1

Radius: 7.4

Gravity: 12.49 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 8.13 AU - 13.51 AU

Year: 22980 Days

Day: 16.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 90,561,103 km

• M1: 92,003 km (0.034 R)
• M2: 373,247 km (0.044 R)
• M3: 955,482 km (0.061 R)
• M4: 1,573,770 km (0.069 R)
• M5: 2,672,267 km (0.053 R)
• M6: 3,980,500 km (0.101 R)
• M7: 5,150,804 km (0.118 R)
• M8: 6,355,366 km (0.116 R)
• M9: 7,288,707 km (0.119 R)
• M10: 8,911,695 km (0.045 R)
• M11: 9,366,771 km (0.054 R)
• M12: 10,078,409 km (0.036 R)
• M13: 10,447,466 km (0.116 R)
• M14: 11,475,952 km (0.088 R)
• M15: 12,926,004 km (0.094 R)
• M16: 14,728,359 km (0.089 R)
• M17: 17,559,349 km (0.034 R)
• M18: 23,085,794 km (0.067 R)
• M19: 26,182,171 km (0.031 R)
• M20: 26,646,074 km (0.106 R)
• M21: 27,233,544 km (0.104 R)
• M22: 32,115,671 km (0.1 R)
• M23: 36,677,508 km (0.105 R)
• M24: 40,562,266 km (0.044 R)
• M25: 46,044,579 km (0.072 R)
• M26: 53,287,809 km (0.092 R)
• M27: 55,543,146 km (0.08 R)
• M28: 60,444,720 km (0.096 R)
• M29: 69,094,469 km (0.052 R)
• M30: 70,873,188 km (0.057 R)
• M31: 72,000,258 km (0.117 R)
• M32: 72,682,275 km (0.084 R)
• M33: 76,392,153 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844

Radius: 6.4

Gravity: 20.61 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.61 AU - 12.29 AU

Year: 23396 Days

Day: 17.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 90,561,103 km

• M1: 79,586 km (0.101 R)
• M2: 524,191 km (0.119 R)
• M3: 771,327 km (0.074 R)
• M4: 1,346,082 km (0.09 R)
• M5: 1,840,802 km (0.102 R)
• M6: 2,449,964 km (0.076 R)
• M7: 3,128,690 km (0.098 R)
• M8: 4,161,962 km (0.103 R)
• M9: 5,044,440 km (0.06 R)
• M10: 5,571,623 km (0.101 R)
• M11: 6,546,552 km (0.115 R)
• M12: 6,976,497 km (0.052 R)
• M13: 7,374,427 km (0.107 R)
• M14: 9,776,670 km (0.079 R)
• M15: 10,402,138 km (0.094 R)
• M16: 10,724,671 km (0.068 R)
• M17: 13,247,490 km (0.101 R)
• M18: 14,807,347 km (0.108 R)
• M19: 33,291,959 km (0.094 R)
• M20: 36,893,677 km (0.043 R)
• M21: 41,226,630 km (0.081 R)
• M22: 42,852,908 km (0.064 R)
• M23: 50,334,148 km (0.073 R)
• M24: 64,947,317 km (0.071 R)
• M25: 67,815,258 km (0.06 R)
• M26: 70,536,443 km (0.097 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: 385 - 17,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit