🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.3

Radius: 11.2

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.76 AU - 0.86 AU

Year: 494 Days

Day: 10.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,035,575 km

• M1: 155,133 km (0.091 R)
• M2: 573,259 km (0.113 R)
• M3: 1,351,168 km (0.117 R)
• M4: 1,705,266 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.4

Radius: 13.3

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.79 AU - 2.83 AU

Year: 2381 Days

Day: 6.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,035,575 km

• M1: 183,557 km (0.1 R)
• M2: 719,715 km (0.11 R)
• M3: 1,440,328 km (0.078 R)
• M4: 1,950,307 km (0.12 R)
• M5: 2,421,840 km (0.072 R)
• M6: 2,969,667 km (0.116 R)
• M7: 3,470,671 km (0.08 R)
• M8: 4,296,750 km (0.097 R)
• M9: 5,598,102 km (0.088 R)
• M10: 7,027,958 km (0.045 R)
• M11: 7,828,457 km (0.112 R)
• M12: 9,833,517 km (0.077 R)
• M13: 10,326,442 km (0.12 R)
• M14: 13,178,675 km (0.044 R)
• M15: 17,657,037 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.4

Radius: 8.5

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.19 AU - 3.43 AU

Year: 4084 Days

Day: 13.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,035,575 km

• M1: 105,766 km (0.062 R)
• M2: 512,373 km (0.12 R)
• M3: 847,472 km (0.091 R)
• M4: 1,118,992 km (0.094 R)
• M5: 1,566,290 km (0.119 R)
• M6: 1,927,868 km (0.07 R)
• M7: 2,490,954 km (0.112 R)
• M8: 2,766,513 km (0.114 R)
• M9: 3,081,866 km (0.094 R)
• M10: 3,359,370 km (0.09 R)
• M11: 4,541,043 km (0.103 R)
• M12: 5,198,825 km (0.059 R)
• M13: 5,858,552 km (0.12 R)
• M14: 6,286,851 km (0.116 R)
• M15: 7,806,166 km (0.075 R)
• M16: 8,325,122 km (0.073 R)
• M17: 9,723,413 km (0.043 R)
• M18: 10,589,285 km (0.066 R)
• M19: 11,086,997 km (0.1 R)
• M20: 11,983,388 km (0.112 R)
• M21: 12,325,518 km (0.11 R)
• M22: 16,471,922 km (0.071 R)
• M23: 18,144,576 km (0.068 R)
• M24: 29,364,566 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.6

Radius: 11

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.45 AU - 3.69 AU

Year: 4575 Days

Day: 6.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,035,575 km

• M1: 136,882 km (0.083 R)
• M2: 661,372 km (0.096 R)
• M3: 1,073,814 km (0.103 R)
• M4: 1,565,991 km (0.069 R)
• M5: 2,312,484 km (0.087 R)
• M6: 2,837,273 km (0.096 R)
• M7: 3,422,500 km (0.038 R)
• M8: 4,948,997 km (0.092 R)
• M9: 6,165,527 km (0.111 R)
• M10: 6,887,187 km (0.066 R)
• M11: 8,203,199 km (0.114 R)
• M12: 8,801,292 km (0.045 R)
• M13: 9,679,880 km (0.092 R)
• M14: 12,451,928 km (0.115 R)
• M15: 13,019,652 km (0.099 R)
• M16: 13,741,761 km (0.04 R)
• M17: 14,681,984 km (0.08 R)
• M18: 15,614,278 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 10.9

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.3 AU - 6.26 AU

Year: 8229 Days

Day: 6.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,035,575 km

• M1: 135,536 km (0.115 R)
• M2: 591,959 km (0.095 R)
• M3: 1,358,498 km (0.106 R)
• M4: 1,963,173 km (0.069 R)
• M5: 2,319,964 km (0.102 R)
• M6: 2,822,164 km (0.028 R)
• M7: 3,211,567 km (0.116 R)
• M8: 3,889,395 km (0.028 R)
• M9: 4,928,502 km (0.086 R)
• M10: 6,430,764 km (0.106 R)
• M11: 7,267,315 km (0.113 R)
• M12: 8,391,543 km (0.05 R)
• M13: 9,918,488 km (0.073 R)
• M14: 10,264,957 km (0.08 R)
• M15: 10,877,710 km (0.065 R)
• M16: 11,897,519 km (0.034 R)
• M17: 14,126,826 km (0.089 R)
• M18: 15,604,105 km (0.116 R)
• M19: 19,242,924 km (0.071 R)
• M20: 21,136,534 km (0.117 R)
• M21: 21,877,791 km (0.049 R)
• M22: 24,384,154 km (0.109 R)
• M23: 31,957,247 km (0.08 R)
• M24: 32,497,145 km (0.117 R)
• M25: 35,288,791 km (0.094 R)
• M26: 41,344,364 km (0.1 R)
• M27: 41,728,232 km (0.091 R)
• M28: 42,633,299 km (0.081 R)
• M29: 43,025,245 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 738.6

Radius: 5.3

Gravity: 26.29 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.39 AU - 7.25 AU

Year: 9523 Days

Day: 23.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,035,575 km

• M1: 65,973 km (0.1 R)
• M2: 232,774 km (0.063 R)
• M3: 614,398 km (0.065 R)
• M4: 781,798 km (0.097 R)
• M5: 1,260,960 km (0.115 R)
• M6: 1,427,164 km (0.078 R)
• M7: 1,608,177 km (0.062 R)
• M8: 1,868,178 km (0.063 R)
• M9: 2,433,658 km (0.093 R)
• M10: 2,819,621 km (0.111 R)
• M11: 2,993,902 km (0.097 R)
• M12: 3,486,229 km (0.062 R)
• M13: 4,058,141 km (0.115 R)
• M14: 5,519,713 km (0.118 R)
• M15: 8,910,947 km (0.05 R)
• M16: 12,578,937 km (0.069 R)
• M17: 13,234,176 km (0.084 R)
• M18: 14,037,666 km (0.101 R)
• M19: 18,548,191 km (0.051 R)
• M20: 21,252,921 km (0.118 R)
• M21: 22,181,175 km (0.072 R)
• M22: 24,300,080 km (0.098 R)
• M23: 25,314,802 km (0.06 R)
• M24: 28,629,741 km (0.102 R)
• M25: 28,833,194 km (0.054 R)
• M26: 31,894,116 km (0.089 R)
• M27: 39,150,660 km (0.063 R)
• M28: 39,906,279 km (0.111 R)
• M29: 40,287,754 km (0.081 R)
• M30: 42,231,479 km (0.087 R)
• M31: 45,608,651 km (0.118 R)
• M32: 47,008,438 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.5

Radius: 5.7

Gravity: 29.04 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.7 AU - 7.16 AU

Year: 9794 Days

Day: 15.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 58,035,575 km

• M1: 70,909 km (0.115 R)
• M2: 306,825 km (0.077 R)
• M3: 615,146 km (0.101 R)
• M4: 994,078 km (0.119 R)
• M5: 1,261,409 km (0.1 R)
• M6: 1,532,032 km (0.101 R)
• M7: 1,712,596 km (0.117 R)
• M8: 2,153,611 km (0.096 R)
• M9: 3,045,065 km (0.091 R)
• M10: 3,717,657 km (0.084 R)
• M11: 7,162,297 km (0.115 R)
• M12: 7,890,839 km (0.075 R)
• M13: 8,114,338 km (0.09 R)
• M14: 8,434,178 km (0.06 R)
• M15: 10,056,717 km (0.112 R)
• M16: 11,135,318 km (0.093 R)
• M17: 13,142,622 km (0.101 R)
• M18: 14,297,218 km (0.104 R)
• M19: 15,103,551 km (0.105 R)
• M20: 16,441,704 km (0.112 R)
• M21: 17,102,328 km (0.095 R)
• M22: 17,780,455 km (0.041 R)
• M23: 19,922,547 km (0.039 R)
• M24: 22,408,415 km (0.051 R)
• M25: 25,286,229 km (0.076 R)
• M26: 26,165,864 km (0.094 R)
• M27: 27,472,003 km (0.104 R)
• M28: 27,676,803 km (0.028 R)
• M29: 28,193,065 km (0.051 R)
• M30: 33,480,901 km (0.057 R)
• M31: 38,235,421 km (0.062 R)
• M32: 38,875,699 km (0.111 R)
• M33: 39,133,905 km (0.098 R)
• M34: 39,393,158 km (0.087 R)
• M35: 41,913,583 km (0.05 R)
• M36: 43,282,404 km (0.117 R)
• M37: 44,258,081 km (0.114 R)
• M38: 48,158,995 km (0.052 R)
• M39: 49,964,043 km (0.063 R)
• M40: 50,422,262 km (0.114 R)
• M41: 52,126,331 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.5

Radius: 4.1

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.04 AU - 7 AU

Year: 11292 Days

Day: 24.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,035,575 km

• M1: 51,162 km (0.11 R)
• M2: 217,067 km (0.105 R)
• M3: 545,434 km (0.114 R)
• M4: 772,224 km (0.119 R)
• M5: 929,900 km (0.096 R)
• M6: 1,511,836 km (0.116 R)
• M7: 3,037,136 km (0.096 R)
• M8: 3,411,579 km (0.076 R)
• M9: 3,886,702 km (0.078 R)
• M10: 4,856,545 km (0.1 R)
• M11: 5,546,191 km (0.104 R)
• M12: 7,368,742 km (0.099 R)
• M13: 7,738,249 km (0.116 R)
• M14: 8,120,023 km (0.114 R)
• M15: 9,426,162 km (0.106 R)
• M16: 12,811,562 km (0.1 R)
• M17: 16,300,633 km (0.098 R)
• M18: 20,230,868 km (0.101 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595

Radius: 7.3

Gravity: 11.17 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.52 AU - 7.74 AU

Year: 14295 Days

Day: 20.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,035,575 km

• M1: 221,106 km (0.108 R)
• M2: 682,914 km (0.085 R)
• M3: 1,029,084 km (0.071 R)
• M4: 1,376,450 km (0.118 R)
• M5: 2,596,570 km (0.113 R)
• M6: 3,195,560 km (0.091 R)
• M7: 6,300,763 km (0.077 R)
• M8: 8,380,174 km (0.091 R)
• M9: 11,631,982 km (0.111 R)
• M10: 12,420,064 km (0.105 R)
• M11: 12,858,835 km (0.101 R)
• M12: 13,438,227 km (0.12 R)
• M13: 13,900,634 km (0.073 R)
• M14: 16,749,726 km (0.078 R)
• M15: 17,674,988 km (0.111 R)
• M16: 21,628,561 km (0.107 R)
• M17: 24,634,132 km (0.09 R)
• M18: 39,713,298 km (0.059 R)
• M19: 56,998,883 km (0.086 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 16,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit