🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.1

Radius: 13.4

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.79 AU - 1.27 AU

Year: 697 Days

Day: 12.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,733,040 km

• M1: 166,652 km (0.089 R)
• M2: 587,770 km (0.092 R)
• M3: 1,091,765 km (0.062 R)
• M4: 1,514,379 km (0.111 R)
• M5: 2,049,341 km (0.043 R)
• M6: 2,558,572 km (0.072 R)
• M7: 3,443,294 km (0.037 R)
• M8: 3,950,431 km (0.059 R)
• M9: 4,896,338 km (0.076 R)
• M10: 6,240,625 km (0.071 R)
• M11: 7,214,357 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.4

Radius: 12.6

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.5 AU - 3.46 AU

Year: 3430 Days

Day: 13.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,733,040 km

• M1: 156,779 km (0.119 R)
• M2: 1,441,226 km (0.088 R)
• M3: 2,623,797 km (0.072 R)
• M4: 3,348,300 km (0.096 R)
• M5: 4,795,061 km (0.104 R)
• M6: 6,148,772 km (0.106 R)
• M7: 7,553,496 km (0.092 R)
• M8: 8,033,555 km (0.057 R)
• M9: 10,393,611 km (0.086 R)
• M10: 11,481,038 km (0.058 R)
• M11: 11,988,025 km (0.062 R)
• M12: 15,148,879 km (0.086 R)
• M13: 17,138,381 km (0.053 R)
• M14: 18,711,851 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.5

Radius: 13.5

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.94 AU - 3.34 AU

Year: 3710 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,733,040 km

• M1: 224,995 km (0.092 R)
• M2: 1,762,562 km (0.097 R)
• M3: 2,526,558 km (0.111 R)
• M4: 3,056,584 km (0.052 R)
• M5: 4,801,643 km (0.07 R)
• M6: 5,645,674 km (0.094 R)
• M7: 6,803,113 km (0.033 R)
• M8: 9,277,162 km (0.061 R)
• M9: 10,185,221 km (0.091 R)
• M10: 10,623,842 km (0.051 R)
• M11: 11,657,264 km (0.119 R)
• M12: 12,423,804 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261

Radius: 12.3

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.05 AU - 5.07 AU

Year: 6493 Days

Day: 10.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,733,040 km

• M1: 153,039 km (0.099 R)
• M2: 668,553 km (0.078 R)
• M3: 1,235,379 km (0.118 R)
• M4: 1,619,696 km (0.098 R)
• M5: 2,226,914 km (0.068 R)
• M6: 2,674,361 km (0.08 R)
• M7: 3,126,595 km (0.104 R)
• M8: 3,880,120 km (0.048 R)
• M9: 5,861,095 km (0.047 R)
• M10: 7,169,029 km (0.09 R)
• M11: 7,668,387 km (0.109 R)
• M12: 8,334,247 km (0.088 R)
• M13: 8,924,560 km (0.104 R)
• M14: 9,621,836 km (0.089 R)
• M15: 11,257,240 km (0.104 R)
• M16: 14,804,804 km (0.065 R)
• M17: 18,353,415 km (0.106 R)
• M18: 19,417,654 km (0.1 R)
• M19: 21,327,420 km (0.105 R)
• M20: 23,000,224 km (0.108 R)
• M21: 25,136,182 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.3

Radius: 11.4

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.46 AU - 6.35 AU

Year: 8368 Days

Day: 11.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,733,040 km

• M1: 141,968 km (0.116 R)
• M2: 518,357 km (0.1 R)
• M3: 2,046,499 km (0.115 R)
• M4: 2,509,654 km (0.106 R)
• M5: 4,550,917 km (0.053 R)
• M6: 5,764,156 km (0.104 R)
• M7: 9,645,024 km (0.079 R)
• M8: 11,178,850 km (0.093 R)
• M9: 11,957,059 km (0.062 R)
• M10: 12,771,170 km (0.096 R)
• M11: 13,878,942 km (0.091 R)
• M12: 15,884,900 km (0.091 R)
• M13: 17,105,918 km (0.025 R)
• M14: 17,769,833 km (0.092 R)
• M15: 18,957,192 km (0.076 R)
• M16: 19,668,380 km (0.115 R)
• M17: 20,263,331 km (0.111 R)
• M18: 20,870,399 km (0.067 R)
• M19: 23,715,900 km (0.072 R)
• M20: 24,541,680 km (0.079 R)
• M21: 25,154,284 km (0.038 R)
• M22: 26,891,414 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.2

Radius: 12.5

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.99 AU - 6.09 AU

Year: 8695 Days

Day: 11.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,733,040 km

• M1: 178,769 km (0.1 R)
• M2: 1,408,015 km (0.08 R)
• M3: 1,850,526 km (0.111 R)
• M4: 2,430,816 km (0.09 R)
• M5: 2,872,130 km (0.103 R)
• M6: 3,775,401 km (0.118 R)
• M7: 5,306,536 km (0.047 R)
• M8: 6,341,155 km (0.087 R)
• M9: 6,785,011 km (0.094 R)
• M10: 7,935,569 km (0.09 R)
• M11: 8,664,559 km (0.085 R)
• M12: 9,324,435 km (0.059 R)
• M13: 9,978,178 km (0.045 R)
• M14: 10,662,289 km (0.109 R)
• M15: 11,506,919 km (0.091 R)
• M16: 14,209,853 km (0.115 R)
• M17: 17,713,585 km (0.118 R)
• M18: 19,141,347 km (0.086 R)
• M19: 21,623,175 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.8

Radius: 5.1

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.34 AU - 8.24 AU

Year: 11799 Days

Day: 15 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,733,040 km

• M1: 63,429 km (0.096 R)
• M2: 291,117 km (0.045 R)
• M3: 730,486 km (0.067 R)
• M4: 934,239 km (0.096 R)
• M5: 1,422,227 km (0.119 R)
• M6: 1,743,563 km (0.119 R)
• M7: 2,207,616 km (0.086 R)
• M8: 2,512,646 km (0.12 R)
• M9: 2,884,097 km (0.111 R)
• M10: 3,062,867 km (0.088 R)
• M11: 7,354,830 km (0.119 R)
• M12: 8,713,926 km (0.113 R)
• M13: 8,962,558 km (0.085 R)
• M14: 12,020,039 km (0.111 R)
• M15: 13,285,039 km (0.11 R)
• M16: 14,928,820 km (0.112 R)
• M17: 21,034,059 km (0.05 R)
• M18: 28,890,790 km (0.053 R)
• M19: 31,825,002 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.1

Radius: 3.1

Gravity: 71.08 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.68 AU - 9.14 AU

Year: 13451 Days

Day: 21.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 38,733,040 km

• M1: 39,045 km (0.106 R)
• M2: 212,728 km (0.117 R)
• M3: 748,139 km (0.089 R)
• M4: 906,713 km (0.119 R)
• M5: 1,225,057 km (0.083 R)
• M6: 1,417,141 km (0.115 R)
• M7: 1,597,406 km (0.088 R)
• M8: 1,792,631 km (0.09 R)
• M9: 1,949,410 km (0.118 R)
• M10: 2,968,471 km (0.109 R)
• M11: 3,418,611 km (0.06 R)
• M12: 3,827,013 km (0.12 R)
• M13: 3,941,156 km (0.114 R)
• M14: 4,389,950 km (0.116 R)
• M15: 4,707,396 km (0.106 R)
• M16: 4,938,675 km (0.12 R)
• M17: 5,388,067 km (0.085 R)
• M18: 6,983,677 km (0.071 R)
• M19: 7,154,369 km (0.118 R)
• M20: 8,143,958 km (0.092 R)
• M21: 10,781,369 km (0.109 R)
• M22: 11,009,506 km (0.054 R)
• M23: 12,198,958 km (0.058 R)
• M24: 14,344,192 km (0.095 R)
• M25: 15,541,573 km (0.1 R)
• M26: 16,425,846 km (0.085 R)
• M27: 19,279,126 km (0.042 R)
• M28: 19,446,676 km (0.103 R)
• M29: 23,383,045 km (0.068 R)
• M30: 27,288,596 km (0.113 R)
• M31: 33,866,864 km (0.099 R)
• M32: 34,479,018 km (0.089 R)
• M33: 38,043,487 km (0.11 R)
• M34: 40,872,532 km (0.101 R)
• M35: 41,566,068 km (0.11 R)
• M36: 43,119,791 km (0.098 R)
• M37: 45,005,173 km (0.033 R)
• M38: 47,705,415 km (0.109 R)
• M39: 53,426,037 km (0.052 R)
• M40: 57,137,710 km (0.069 R)
• M41: 57,310,495 km (0.069 R)
• M42: 58,004,630 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.8

Radius: 6.2

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 8.01 AU - 10.73 AU

Year: 19127 Days

Day: 16.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,733,040 km

• M1: 154,385 km (0.102 R)
• M2: 461,210 km (0.106 R)
• M3: 2,569,643 km (0.119 R)
• M4: 3,107,896 km (0.105 R)
• M5: 3,913,779 km (0.077 R)
• M6: 5,265,396 km (0.045 R)
• M7: 5,638,793 km (0.089 R)
• M8: 6,197,840 km (0.077 R)
• M9: 6,793,239 km (0.066 R)
• M10: 14,747,208 km (0.059 R)
• M11: 18,280,561 km (0.098 R)
• M12: 18,633,761 km (0.101 R)
• M13: 18,919,643 km (0.1 R)
• M14: 19,647,137 km (0.06 R)
• M15: 24,578,781 km (0.106 R)
• M16: 25,796,358 km (0.1 R)
• M17: 29,689,941 km (0.117 R)
• M18: 31,775,934 km (0.04 R)
• M19: 33,745,839 km (0.116 R)
• M20: 34,277,360 km (0.12 R)
• M21: 38,041,392 km (0.054 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: 520 - 13,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit