🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.74 AU

Year: 189 Days

Day: 23.8 Hours

Environment

Temp: 237 °C

Axial Tilt: 2.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 108,834,977 km

• M1: 119,678 km (0.054 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.8 AU - 2.38 AU

Year: 1067 Days

Day: 43.3 Hours

Environment

Temp: -62 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 108,834,977 km

• M1: 1,097,001 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.24 AU - 2.72 AU

Year: 1379 Days

Day: 27.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.74 AU - 3.18 AU

Year: 1798 Days

Day: 37.3 Hours

Environment

Temp: -95 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.34 AU - 3.56 AU

Year: 2263 Days

Day: 42 Hours

Environment

Temp: -101 °C

Axial Tilt: 44.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.2

Radius: 14.2

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.89 AU - 6.57 AU

Year: 4843 Days

Day: 14.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 108,834,977 km

• M1: 184,753 km (0.112 R)
• M2: 340,186 km (0.091 R)
• M3: 441,314 km (0.108 R)
• M4: 706,252 km (0.05 R)
• M5: 797,057 km (0.058 R)
• M6: 1,216,530 km (0.095 R)
• M7: 1,316,312 km (0.059 R)
• M8: 1,445,265 km (0.092 R)
• M9: 1,578,856 km (0.04 R)
• M10: 1,716,636 km (0.096 R)
• M11: 1,815,669 km (0.098 R)
• M12: 2,079,710 km (0.025 R)
• M13: 2,201,033 km (0.092 R)
• M14: 2,661,795 km (0.083 R)
• M15: 3,187,781 km (0.086 R)
• M16: 3,418,311 km (0.101 R)
• M17: 3,544,722 km (0.063 R)
• M18: 4,028,072 km (0.112 R)
• M19: 4,161,813 km (0.113 R)
• M20: 4,277,751 km (0.093 R)
• M21: 4,433,931 km (0.102 R)
• M22: 4,532,666 km (0.082 R)
• M23: 5,411,105 km (0.026 R)
• M24: 5,644,477 km (0.1 R)
• M25: 5,946,216 km (0.066 R)
• M26: 6,209,060 km (0.066 R)
• M27: 6,319,762 km (0.048 R)
• M28: 6,431,063 km (0.113 R)
• M29: 6,633,170 km (0.038 R)
• M30: 7,439,203 km (0.077 R)
• M31: 7,699,054 km (0.05 R)
• M32: 7,866,006 km (0.068 R)
• M33: 8,154,879 km (0.105 R)
• M34: 8,276,353 km (0.119 R)
• M35: 8,520,945 km (0.066 R)
• M36: 8,693,731 km (0.087 R)
• M37: 8,867,563 km (0.104 R)
• M38: 9,320,097 km (0.103 R)
• M39: 9,549,281 km (0.059 R)
• M40: 9,754,529 km (0.063 R)
• M41: 10,352,771 km (0.027 R)
• M42: 10,669,619 km (0.1 R)
• M43: 11,394,421 km (0.119 R)
• M44: 11,941,500 km (0.098 R)
• M45: 12,107,404 km (0.06 R)
• M46: 12,891,297 km (0.104 R)
• M47: 13,260,954 km (0.103 R)
• M48: 13,375,396 km (0.114 R)
• M49: 13,923,523 km (0.068 R)
• M50: 14,156,596 km (0.097 R)
• M51: 14,420,188 km (0.064 R)
• M52: 15,011,997 km (0.075 R)
• M53: 15,161,146 km (0.043 R)
• M54: 15,340,962 km (0.099 R)
• M55: 15,702,391 km (0.101 R)
• M56: 16,649,345 km (0.082 R)
• M57: 16,772,913 km (0.089 R)
• M58: 16,958,863 km (0.078 R)
• M59: 17,614,850 km (0.039 R)
• M60: 18,694,648 km (0.102 R)
• M61: 19,048,596 km (0.119 R)
• M62: 19,177,849 km (0.093 R)
• M63: 19,404,789 km (0.06 R)
• M64: 19,665,238 km (0.076 R)
• M65: 20,453,470 km (0.113 R)
• M66: 20,618,925 km (0.117 R)
• M67: 20,917,971 km (0.097 R)
• M68: 21,285,533 km (0.093 R)
• M69: 21,959,172 km (0.118 R)
• M70: 22,708,358 km (0.101 R)
• M71: 23,051,536 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.2

Radius: 10.7

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 6.02 AU - 6.06 AU

Year: 5241 Days

Day: 9.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 108,834,977 km

• M1: 137,331 km (0.112 R)
• M2: 274,213 km (0.047 R)
• M3: 355,594 km (0.114 R)
• M4: 457,470 km (0.065 R)
• M5: 653,443 km (0.115 R)
• M6: 796,459 km (0.112 R)
• M7: 962,812 km (0.117 R)
• M8: 1,076,207 km (0.062 R)
• M9: 1,167,611 km (0.063 R)
• M10: 1,516,324 km (0.092 R)
• M11: 1,803,103 km (0.108 R)
• M12: 2,090,780 km (0.106 R)
• M13: 2,393,416 km (0.086 R)
• M14: 2,462,680 km (0.117 R)
• M15: 2,656,409 km (0.102 R)
• M16: 2,910,427 km (0.073 R)
• M17: 3,077,976 km (0.089 R)
• M18: 3,540,533 km (0.1 R)
• M19: 3,820,430 km (0.062 R)
• M20: 4,296,152 km (0.054 R)
• M21: 4,423,459 km (0.092 R)
• M22: 4,595,048 km (0.099 R)
• M23: 4,856,545 km (0.104 R)
• M24: 5,078,249 km (0.067 R)
• M25: 5,485,904 km (0.116 R)
• M26: 5,857,056 km (0.093 R)
• M27: 6,405,033 km (0.098 R)
• M28: 6,501,972 km (0.075 R)
• M29: 6,575,126 km (0.116 R)
• M30: 6,944,483 km (0.106 R)
• M31: 7,575,337 km (0.111 R)
• M32: 7,703,842 km (0.099 R)
• M33: 7,832,945 km (0.067 R)
• M34: 8,041,035 km (0.052 R)
• M35: 8,171,933 km (0.113 R)
• M36: 8,409,644 km (0.118 R)
• M37: 8,515,859 km (0.118 R)
• M38: 8,596,043 km (0.117 R)
• M39: 8,756,861 km (0.118 R)
• M40: 8,864,571 km (0.069 R)
• M41: 9,081,488 km (0.114 R)
• M42: 9,382,778 km (0.115 R)
• M43: 9,631,560 km (0.025 R)
• M44: 9,938,684 km (0.118 R)
• M45: 10,334,371 km (0.119 R)
• M46: 10,419,791 km (0.099 R)
• M47: 11,699,900 km (0.118 R)
• M48: 12,783,886 km (0.116 R)
• M49: 12,998,260 km (0.063 R)
• M50: 13,586,628 km (0.112 R)
• M51: 13,711,542 km (0.092 R)
• M52: 14,057,114 km (0.117 R)
• M53: 14,405,677 km (0.091 R)
• M54: 14,660,891 km (0.08 R)
• M55: 14,949,764 km (0.086 R)
• M56: 15,500,733 km (0.114 R)
• M57: 15,860,815 km (0.11 R)
• M58: 16,157,468 km (0.097 R)
• M59: 16,256,651 km (0.064 R)
• M60: 16,622,567 km (0.087 R)
• M61: 16,689,288 km (0.118 R)
• M62: 17,294,561 km (0.119 R)
• M63: 17,770,282 km (0.095 R)
• M64: 18,112,861 km (0.119 R)
• M65: 19,433,960 km (0.112 R)
• M66: 19,857,621 km (0.113 R)
• M67: 20,606,508 km (0.106 R)
• M68: 20,858,132 km (0.076 R)
• M69: 21,437,076 km (0.107 R)
• M70: 21,874,949 km (0.12 R)
• M71: 22,058,206 km (0.058 R)
• M72: 22,463,167 km (0.119 R)
• M73: 23,019,372 km (0.118 R)
• M74: 24,183,244 km (0.073 R)
• M75: 25,020,842 km (0.12 R)
• M76: 25,751,927 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.2

Radius: 13.4

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.37 AU - 9.47 AU

Year: 7870 Days

Day: 14.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 108,834,977 km

• M1: 177,273 km (0.1 R)
• M2: 362,176 km (0.096 R)
• M3: 551,717 km (0.116 R)
• M4: 863,329 km (0.111 R)
• M5: 1,052,271 km (0.117 R)
• M6: 1,579,305 km (0.1 R)
• M7: 1,929,813 km (0.081 R)
• M8: 2,228,260 km (0.025 R)
• M9: 2,655,213 km (0.117 R)
• M10: 2,954,259 km (0.089 R)
• M11: 3,246,872 km (0.092 R)
• M12: 3,567,311 km (0.104 R)
• M13: 4,510,675 km (0.11 R)
• M14: 4,788,329 km (0.039 R)
• M15: 4,969,791 km (0.087 R)
• M16: 5,277,514 km (0.084 R)
• M17: 6,347,737 km (0.067 R)
• M18: 6,592,030 km (0.07 R)
• M19: 6,681,789 km (0.03 R)
• M20: 6,953,159 km (0.091 R)
• M21: 7,067,303 km (0.115 R)
• M22: 7,741,989 km (0.117 R)
• M23: 8,051,208 km (0.074 R)
• M24: 8,608,161 km (0.09 R)
• M25: 9,836,359 km (0.094 R)
• M26: 9,990,445 km (0.119 R)
• M27: 10,932,313 km (0.077 R)
• M28: 11,440,946 km (0.119 R)
• M29: 12,094,389 km (0.065 R)
• M30: 12,425,749 km (0.111 R)
• M31: 12,620,376 km (0.043 R)
• M32: 12,844,024 km (0.08 R)
• M33: 13,267,087 km (0.12 R)
• M34: 13,380,632 km (0.068 R)
• M35: 13,838,252 km (0.117 R)
• M36: 14,301,108 km (0.087 R)
• M37: 14,592,823 km (0.106 R)
• M38: 15,182,538 km (0.102 R)
• M39: 15,390,629 km (0.08 R)
• M40: 15,599,916 km (0.116 R)
• M41: 15,689,825 km (0.09 R)
• M42: 15,990,816 km (0.108 R)
• M43: 16,354,638 km (0.074 R)
• M44: 16,506,928 km (0.082 R)
• M45: 16,598,632 km (0.081 R)
• M46: 16,751,670 km (0.083 R)
• M47: 16,936,125 km (0.106 R)
• M48: 17,090,360 km (0.118 R)
• M49: 17,183,111 km (0.116 R)
• M50: 17,337,944 km (0.114 R)
• M51: 17,555,609 km (0.064 R)
• M52: 18,340,549 km (0.111 R)
• M53: 19,040,667 km (0.104 R)
• M54: 20,074,688 km (0.104 R)
• M55: 20,368,947 km (0.114 R)
• M56: 20,598,580 km (0.059 R)
• M57: 21,193,381 km (0.077 R)
• M58: 21,426,155 km (0.096 R)
• M59: 21,860,886 km (0.054 R)
• M60: 22,433,697 km (0.078 R)

Asteroid Belt

Center: 10.22 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 12.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.7

Radius: 11.5

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 10.49 AU - 14.55 AU

Year: 15642 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 108,834,977 km

• M1: 188,344 km (0.053 R)
• M2: 281,992 km (0.115 R)
• M3: 649,404 km (0.096 R)
• M4: 884,123 km (0.113 R)
• M5: 1,254,677 km (0.107 R)
• M6: 1,647,671 km (0.1 R)
• M7: 2,293,485 km (0.102 R)
• M8: 2,862,854 km (0.068 R)
• M9: 3,380,613 km (0.115 R)
• M10: 3,570,452 km (0.068 R)
• M11: 4,194,724 km (0.09 R)
• M12: 4,364,667 km (0.088 R)
• M13: 4,502,298 km (0.052 R)
• M14: 4,924,014 km (0.034 R)
• M15: 5,617,699 km (0.115 R)
• M16: 6,459,038 km (0.034 R)
• M17: 6,735,046 km (0.055 R)
• M18: 6,934,609 km (0.046 R)
• M19: 7,176,659 km (0.079 R)
• M20: 7,462,690 km (0.116 R)
• M21: 7,919,562 km (0.115 R)
• M22: 9,567,382 km (0.101 R)
• M23: 9,927,614 km (0.107 R)
• M24: 11,459,945 km (0.114 R)
• M25: 11,938,658 km (0.113 R)
• M26: 12,571,008 km (0.105 R)
• M27: 13,264,095 km (0.113 R)
• M28: 13,464,407 km (0.037 R)
• M29: 14,122,338 km (0.108 R)
• M30: 14,378,151 km (0.103 R)
• M31: 14,738,981 km (0.073 R)
• M32: 14,894,562 km (0.038 R)
• M33: 16,372,589 km (0.104 R)
• M34: 16,587,562 km (0.088 R)
• M35: 16,803,431 km (0.099 R)
• M36: 18,062,896 km (0.095 R)
• M37: 18,285,049 km (0.094 R)
• M38: 19,013,291 km (0.11 R)
• M39: 20,209,775 km (0.108 R)
• M40: 21,313,059 km (0.109 R)
• M41: 22,316,861 km (0.084 R)
• M42: 22,974,643 km (0.104 R)
• M43: 23,517,533 km (0.077 R)
• M44: 25,481,753 km (0.101 R)
• M45: 25,981,111 km (0.119 R)
• M46: 26,672,852 km (0.094 R)
• M47: 26,989,251 km (0.103 R)
• M48: 27,306,997 km (0.108 R)
• M49: 29,761,898 km (0.086 R)
• M50: 30,816,413 km (0.117 R)
• M51: 31,215,092 km (0.034 R)
• M52: 31,415,104 km (0.094 R)
• M53: 32,017,535 km (0.111 R)
• M54: 32,894,477 km (0.113 R)
• M55: 33,233,915 km (0.103 R)
• M56: 35,086,535 km (0.112 R)
• M57: 35,990,555 km (0.111 R)
• M58: 36,620,960 km (0.1 R)
• M59: 37,537,846 km (0.113 R)
• M60: 37,892,542 km (0.107 R)
• M61: 38,319,644 km (0.117 R)
• M62: 38,819,899 km (0.092 R)
• M63: 40,043,760 km (0.095 R)
• M64: 40,551,495 km (0.087 R)
• M65: 41,499,945 km (0.072 R)
• M66: 41,573,248 km (0.061 R)
• M67: 43,047,535 km (0.086 R)
• M68: 45,290,905 km (0.106 R)
• M69: 45,441,849 km (0.095 R)
• M70: 46,502,947 km (0.049 R)
• M71: 47,495,529 km (0.07 R)
• M72: 48,186,821 km (0.07 R)
• M73: 48,958,746 km (0.075 R)
• M74: 49,501,636 km (0.086 R)
• M75: 50,515,012 km (0.026 R)
• M76: 50,593,252 km (0.118 R)
• M77: 51,220,665 km (0.104 R)
• M78: 51,929,460 km (0.108 R)
• M79: 52,324,698 km (0.103 R)
• M80: 52,562,259 km (0.075 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.8

Radius: 3.4

Gravity: 64.86 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 17.32 AU - 23.62 AU

Year: 32702 Days

Day: 17 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 108,834,977 km

• M1: 92,900 km (0.097 R)
• M2: 1,561,951 km (0.05 R)
• M3: 1,971,401 km (0.113 R)
• M4: 2,014,186 km (0.046 R)
• M5: 2,057,120 km (0.096 R)
• M6: 2,930,921 km (0.076 R)
• M7: 3,078,126 km (0.093 R)
• M8: 3,177,608 km (0.075 R)
• M9: 3,796,794 km (0.06 R)
• M10: 4,621,377 km (0.045 R)
• M11: 4,966,201 km (0.11 R)
• M12: 5,200,620 km (0.114 R)
• M13: 6,049,139 km (0.058 R)
• M14: 8,839,888 km (0.096 R)
• M15: 9,992,689 km (0.1 R)
• M16: 11,730,867 km (0.078 R)
• M17: 13,316,305 km (0.114 R)
• M18: 15,390,330 km (0.096 R)
• M19: 15,475,451 km (0.059 R)
• M20: 15,902,852 km (0.04 R)
• M21: 18,008,143 km (0.095 R)
• M22: 18,187,511 km (0.047 R)
• M23: 18,367,477 km (0.072 R)
• M24: 19,367,838 km (0.057 R)
• M25: 19,735,849 km (0.066 R)
• M26: 23,835,878 km (0.119 R)
• M27: 24,032,748 km (0.098 R)
• M28: 24,329,102 km (0.09 R)
• M29: 24,626,801 km (0.074 R)
• M30: 25,025,330 km (0.119 R)
• M31: 25,325,723 km (0.059 R)
• M32: 25,930,098 km (0.044 R)
• M33: 26,845,637 km (0.087 R)
• M34: 28,394,723 km (0.101 R)
• M35: 28,707,981 km (0.081 R)
• M36: 29,654,636 km (0.111 R)
• M37: 33,212,373 km (0.098 R)
• M38: 34,650,457 km (0.054 R)
• M39: 35,208,906 km (0.076 R)
• M40: 36,221,684 km (0.083 R)
• M41: 37,129,892 km (0.097 R)
• M42: 37,358,179 km (0.063 R)
• M43: 38,045,730 km (0.05 R)
• M44: 38,160,622 km (0.112 R)
• M45: 38,391,002 km (0.117 R)
• M46: 39,084,688 km (0.076 R)
• M47: 39,782,562 km (0.054 R)
• M48: 40,016,084 km (0.115 R)
• M49: 41,190,577 km (0.105 R)
• M50: 42,376,439 km (0.094 R)
• M51: 43,573,372 km (0.088 R)
• M52: 44,175,952 km (0.068 R)
• M53: 47,477,577 km (0.072 R)
• M54: 49,596,631 km (0.111 R)
• M55: 52,768,555 km (0.109 R)
• M56: 53,153,619 km (0.037 R)
• M57: 53,668,386 km (0.12 R)
• M58: 53,926,442 km (0.119 R)
• M59: 57,054,683 km (0.11 R)
• M60: 58,508,026 km (0.101 R)
• M61: 59,039,548 km (0.088 R)
• M62: 60,241,267 km (0.106 R)
• M63: 60,912,363 km (0.103 R)
• M64: 66,646,599 km (0.066 R)
• M65: 68,596,009 km (0.095 R)
• M66: 69,156,403 km (0.104 R)
• M67: 71,271,268 km (0.108 R)
• M68: 74,267,713 km (0.049 R)
• M69: 74,843,067 km (0.116 R)
• M70: 75,131,342 km (0.032 R)
• M71: 75,419,916 km (0.101 R)
• M72: 75,708,939 km (0.078 R)
• M73: 75,853,451 km (0.107 R)
• M74: 79,205,341 km (0.117 R)
• M75: 79,646,056 km (0.119 R)
• M76: 80,382,526 km (0.107 R)
• M77: 80,677,683 km (0.088 R)
• M78: 81,862,049 km (0.084 R)
• M79: 82,456,402 km (0.081 R)
• M80: 84,397,733 km (0.047 R)
• M81: 85,600,051 km (0.117 R)
• M82: 86,052,286 km (0.09 R)
• M83: 87,262,233 km (0.043 R)
• M84: 87,413,925 km (0.104 R)
• M85: 92,621,726 km (0.064 R)
• M86: 94,172,308 km (0.11 R)
• M87: 95,575,387 km (0.114 R)
• M88: 95,731,717 km (0.074 R)
• M89: 97,771,484 km (0.094 R)
• M90: 99,984,186 km (0.114 R)
• M91: 100,460,505 km (0.075 R)
• M92: 104,619,775 km (0.104 R)
• M93: 105,264,691 km (0.064 R)
• M94: 105,587,524 km (0.103 R)
• M95: 106,558,414 km (0.066 R)
• M96: 107,857,372 km (0.054 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 13,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit