🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.51 AU - 0.69 AU

Year: 300 Days

Day: 34.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 45.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.1

Radius: 14.2

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.61 AU - 0.93 AU

Year: 436 Days

Day: 5.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 80,048,880 km

• M1: 176,675 km (0.085 R)
• M2: 967,898 km (0.075 R)
• M3: 1,572,423 km (0.099 R)
• M4: 2,128,329 km (0.075 R)
• M5: 3,078,874 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.9

Radius: 14.1

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.93 AU - 3.15 AU

Year: 3422 Days

Day: 11.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,048,880 km

• M1: 180,116 km (0.099 R)
• M2: 799,152 km (0.086 R)
• M3: 1,244,953 km (0.099 R)
• M4: 2,671,668 km (0.12 R)
• M5: 4,022,238 km (0.075 R)
• M6: 4,983,404 km (0.118 R)
• M7: 8,088,906 km (0.086 R)
• M8: 9,548,533 km (0.119 R)
• M9: 11,373,627 km (0.114 R)
• M10: 12,473,770 km (0.058 R)
• M11: 15,656,016 km (0.116 R)
• M12: 16,707,689 km (0.095 R)
• M13: 17,859,443 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.8

Radius: 12.8

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.18 AU - 5.64 AU

Year: 8125 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,048,880 km

• M1: 159,771 km (0.083 R)
• M2: 697,126 km (0.095 R)
• M3: 1,382,135 km (0.105 R)
• M4: 3,274,249 km (0.091 R)
• M5: 5,593,165 km (0.116 R)
• M6: 7,245,324 km (0.026 R)
• M7: 8,039,240 km (0.047 R)
• M8: 8,628,955 km (0.095 R)
• M9: 10,085,739 km (0.04 R)
• M10: 10,822,658 km (0.07 R)
• M11: 11,542,373 km (0.118 R)
• M12: 12,075,989 km (0.069 R)
• M13: 12,963,852 km (0.063 R)
• M14: 15,437,752 km (0.105 R)
• M15: 17,229,636 km (0.07 R)
• M16: 18,426,718 km (0.089 R)
• M17: 25,079,485 km (0.079 R)
• M18: 25,794,862 km (0.068 R)
• M19: 29,281,838 km (0.11 R)
• M20: 32,541,277 km (0.114 R)
• M21: 35,697,493 km (0.119 R)
• M22: 39,411,110 km (0.06 R)
• M23: 41,485,135 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.8

Radius: 13.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.02 AU - 6.9 AU

Year: 9395 Days

Day: 12.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,048,880 km

• M1: 162,912 km (0.102 R)
• M2: 572,810 km (0.115 R)
• M3: 1,546,094 km (0.066 R)
• M4: 3,738,301 km (0.092 R)
• M5: 4,807,028 km (0.104 R)
• M6: 6,098,208 km (0.093 R)
• M7: 8,577,792 km (0.113 R)
• M8: 10,142,287 km (0.086 R)
• M9: 11,577,978 km (0.11 R)
• M10: 12,115,782 km (0.11 R)
• M11: 14,901,743 km (0.095 R)
• M12: 16,304,522 km (0.118 R)
• M13: 16,923,858 km (0.075 R)
• M14: 22,251,786 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 539.8

Radius: 4.1

Gravity: 32.11 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 6.08 AU - 6.14 AU

Year: 9752 Days

Day: 20 Hours

Environment

Temp: -219 °C

Axial Tilt: 124.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,048,880 km

• M1: 56,398 km (0.06 R)
• M2: 246,388 km (0.106 R)
• M3: 489,185 km (0.112 R)
• M4: 637,287 km (0.088 R)
• M5: 833,111 km (0.041 R)
• M6: 1,068,278 km (0.107 R)
• M7: 1,436,289 km (0.098 R)
• M8: 2,571,438 km (0.105 R)
• M9: 2,897,262 km (0.073 R)
• M10: 3,705,090 km (0.117 R)
• M11: 4,174,379 km (0.109 R)
• M12: 5,261,656 km (0.026 R)
• M13: 5,956,389 km (0.061 R)
• M14: 6,200,981 km (0.106 R)
• M15: 6,898,556 km (0.035 R)
• M16: 7,687,984 km (0.085 R)
• M17: 8,146,950 km (0.094 R)
• M18: 8,936,977 km (0.046 R)
• M19: 9,350,465 km (0.073 R)
• M20: 9,776,670 km (0.111 R)
• M21: 9,970,249 km (0.094 R)
• M22: 11,665,792 km (0.091 R)
• M23: 11,829,003 km (0.112 R)
• M24: 11,993,560 km (0.032 R)
• M25: 12,667,200 km (0.059 R)
• M26: 13,967,355 km (0.08 R)
• M27: 16,486,134 km (0.111 R)
• M28: 16,691,532 km (0.085 R)
• M29: 19,981,638 km (0.104 R)
• M30: 23,505,715 km (0.054 R)
• M31: 23,766,015 km (0.044 R)
• M32: 24,380,713 km (0.035 R)
• M33: 27,807,551 km (0.11 R)
• M34: 34,692,494 km (0.087 R)
• M35: 35,142,784 km (0.113 R)
• M36: 39,129,567 km (0.053 R)
• M37: 42,888,662 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.8

Radius: 6.6

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 6.16 AU - 8.62 AU

Year: 12971 Days

Day: 16.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,048,880 km

• M1: 84,822 km (0.066 R)
• M2: 315,053 km (0.106 R)
• M3: 1,038,508 km (0.106 R)
• M4: 1,422,077 km (0.033 R)
• M5: 1,753,287 km (0.109 R)
• M6: 2,611,680 km (0.099 R)
• M7: 3,880,868 km (0.119 R)
• M8: 4,098,832 km (0.098 R)
• M9: 4,619,732 km (0.114 R)
• M10: 7,606,603 km (0.032 R)
• M11: 8,257,354 km (0.108 R)
• M12: 16,720,554 km (0.116 R)
• M13: 19,993,755 km (0.094 R)
• M14: 25,810,869 km (0.041 R)
• M15: 31,336,266 km (0.06 R)
• M16: 34,956,534 km (0.104 R)
• M17: 36,142,696 km (0.08 R)
• M18: 38,344,926 km (0.106 R)
• M19: 39,225,010 km (0.084 R)
• M20: 43,691,853 km (0.101 R)
• M21: 48,486,315 km (0.079 R)
• M22: 49,072,440 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719.6

Radius: 4

Gravity: 44.98 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.74 AU - 9.42 AU

Year: 13475 Days

Day: 23 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 80,048,880 km

• M1: 49,816 km (0.116 R)
• M2: 293,062 km (0.109 R)
• M3: 463,604 km (0.091 R)
• M4: 735,423 km (0.039 R)
• M5: 2,914,316 km (0.111 R)
• M6: 3,465,734 km (0.088 R)
• M7: 3,627,449 km (0.118 R)
• M8: 4,545,232 km (0.101 R)
• M9: 6,783,964 km (0.069 R)
• M10: 7,563,519 km (0.117 R)
• M11: 8,644,363 km (0.056 R)
• M12: 8,892,247 km (0.1 R)
• M13: 10,258,524 km (0.068 R)
• M14: 20,161,455 km (0.113 R)
• M15: 22,683,824 km (0.082 R)
• M16: 23,060,512 km (0.101 R)
• M17: 25,611,455 km (0.116 R)
• M18: 28,019,532 km (0.054 R)
• M19: 30,119,138 km (0.101 R)
• M20: 42,917,086 km (0.095 R)
• M21: 46,450,887 km (0.101 R)
• M22: 47,210,694 km (0.103 R)
• M23: 48,443,530 km (0.084 R)
• M24: 56,466,763 km (0.069 R)
• M25: 58,911,791 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.9

Radius: 4.8

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 6.87 AU - 9.73 AU

Year: 15439 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,048,880 km

• M1: 69,413 km (0.079 R)
• M2: 249,080 km (0.073 R)
• M3: 446,550 km (0.065 R)
• M4: 2,481,978 km (0.113 R)
• M5: 3,694,170 km (0.096 R)
• M6: 7,141,204 km (0.059 R)
• M7: 7,453,116 km (0.06 R)
• M8: 8,520,048 km (0.057 R)
• M9: 11,744,330 km (0.05 R)
• M10: 20,665,599 km (0.119 R)
• M11: 20,945,347 km (0.036 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.7

Radius: 3.8

Gravity: 50.53 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.8 AU - 12.52 AU

Year: 20910 Days

Day: 19.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 80,048,880 km

• M1: 48,619 km (0.117 R)
• M2: 271,520 km (0.072 R)
• M3: 440,267 km (0.055 R)
• M4: 696,976 km (0.103 R)
• M5: 876,045 km (0.118 R)
• M6: 1,098,796 km (0.117 R)
• M7: 1,604,437 km (0.107 R)
• M8: 1,998,478 km (0.079 R)
• M9: 2,164,382 km (0.066 R)
• M10: 2,547,801 km (0.101 R)
• M11: 4,577,246 km (0.097 R)
• M12: 5,601,543 km (0.047 R)
• M13: 6,016,826 km (0.028 R)
• M14: 6,723,676 km (0.088 R)
• M15: 6,955,403 km (0.091 R)
• M16: 7,097,073 km (0.079 R)
• M17: 9,287,485 km (0.118 R)
• M18: 9,750,490 km (0.111 R)
• M19: 11,690,026 km (0.097 R)
• M20: 12,093,043 km (0.096 R)
• M21: 12,644,610 km (0.086 R)
• M22: 12,997,811 km (0.064 R)
• M23: 15,818,628 km (0.043 R)
• M24: 17,939,477 km (0.053 R)
• M25: 19,485,272 km (0.11 R)
• M26: 24,870,796 km (0.045 R)
• M27: 28,079,969 km (0.089 R)
• M28: 31,041,558 km (0.081 R)
• M29: 33,797,899 km (0.111 R)
• M30: 42,879,088 km (0.074 R)
• M31: 45,956,615 km (0.1 R)
• M32: 51,110,412 km (0.029 R)
• M33: 55,312,915 km (0.081 R)
• M34: 59,542,645 km (0.087 R)
• M35: 59,937,584 km (0.063 R)
• M36: 66,920,363 km (0.073 R)
• M37: 67,990,886 km (0.092 R)
• M38: 70,606,605 km (0.04 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: 170 - 14,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit