🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.58 AU - 0.9 AU

Year: 276 Days

Day: 39.2 Hours

Environment

Temp: 0 °C

Axial Tilt: 27.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.96 AU - 0.98 AU

Year: 414 Days

Day: 36.2 Hours

Environment

Temp: -50 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,353,107 km

• M1: 660,325 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.52 AU - 1.9 AU

Year: 969 Days

Day: 39.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,353,107 km

• M1: 279,898 km (0.059 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.91 AU - 2.23 AU

Year: 1291 Days

Day: 29.5 Hours

Environment

Temp: -118 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,353,107 km

• M1: 1,474,137 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.08 AU - 2.96 AU

Year: 1734 Days

Day: 17.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 97,353,107 km

• M1: 653,743 km (0.1 R)
• M2: 737,368 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.9

Radius: 13.7

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.95 AU - 3.03 AU

Year: 2241 Days

Day: 9.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 97,353,107 km

• M1: 170,841 km (0.098 R)
• M2: 414,237 km (0.074 R)
• M3: 552,764 km (0.067 R)
• M4: 734,825 km (0.091 R)
• M5: 894,745 km (0.115 R)
• M6: 1,114,803 km (0.048 R)
• M7: 1,322,894 km (0.066 R)
• M8: 1,698,833 km (0.092 R)
• M9: 1,847,235 km (0.078 R)
• M10: 1,952,701 km (0.051 R)
• M11: 2,048,144 km (0.089 R)
• M12: 2,219,135 km (0.103 R)
• M13: 2,369,630 km (0.119 R)
• M14: 2,458,940 km (0.1 R)
• M15: 2,562,612 km (0.088 R)
• M16: 2,747,664 km (0.094 R)
• M17: 2,868,988 km (0.076 R)
• M18: 3,229,668 km (0.085 R)
• M19: 3,401,257 km (0.046 R)
• M20: 3,502,685 km (0.091 R)
• M21: 3,619,969 km (0.053 R)
• M22: 3,888,647 km (0.086 R)
• M23: 4,335,496 km (0.111 R)
• M24: 5,278,411 km (0.105 R)
• M25: 5,447,457 km (0.063 R)
• M26: 5,583,890 km (0.089 R)
• M27: 5,808,137 km (0.118 R)
• M28: 6,088,185 km (0.085 R)
• M29: 6,212,201 km (0.073 R)
• M30: 6,336,966 km (0.094 R)
• M31: 6,516,782 km (0.114 R)
• M32: 6,899,753 km (0.067 R)
• M33: 7,122,055 km (0.087 R)
• M34: 7,957,260 km (0.09 R)
• M35: 8,131,991 km (0.12 R)
• M36: 8,445,697 km (0.053 R)
• M37: 8,604,122 km (0.071 R)
• M38: 8,723,501 km (0.099 R)
• M39: 9,802,550 km (0.088 R)
• M40: 9,969,053 km (0.06 R)
• M41: 10,073,621 km (0.109 R)
• M42: 10,453,151 km (0.094 R)
• M43: 10,559,366 km (0.117 R)
• M44: 10,730,206 km (0.068 R)
• M45: 11,052,889 km (0.111 R)
• M46: 11,204,581 km (0.073 R)
• M47: 11,422,545 km (0.101 R)
• M48: 11,663,847 km (0.082 R)
• M49: 11,774,100 km (0.077 R)
• M50: 11,951,224 km (0.116 R)
• M51: 12,129,246 km (0.06 R)
• M52: 12,623,517 km (0.107 R)
• M53: 12,782,091 km (0.098 R)
• M54: 13,055,705 km (0.081 R)
• M55: 13,193,186 km (0.074 R)
• M56: 14,051,578 km (0.032 R)
• M57: 14,263,110 km (0.116 R)
• M58: 14,428,415 km (0.078 R)
• M59: 14,523,260 km (0.091 R)
• M60: 14,641,892 km (0.113 R)
• M61: 15,096,071 km (0.111 R)
• M62: 15,264,518 km (0.05 R)
• M63: 15,361,009 km (0.113 R)
• M64: 15,578,973 km (0.056 R)
• M65: 15,895,671 km (0.084 R)
• M66: 16,091,645 km (0.085 R)
• M67: 16,288,366 km (0.12 R)
• M68: 16,659,518 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.4

Radius: 9.2

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.83 AU - 4.47 AU

Year: 3665 Days

Day: 11.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 97,353,107 km

• M1: 164,258 km (0.067 R)
• M2: 238,309 km (0.113 R)
• M3: 318,195 km (0.075 R)
• M4: 456,872 km (0.106 R)
• M5: 581,936 km (0.108 R)
• M6: 941,270 km (0.117 R)
• M7: 1,005,746 km (0.115 R)
• M8: 1,208,452 km (0.076 R)
• M9: 1,640,041 km (0.108 R)
• M10: 1,839,156 km (0.106 R)
• M11: 2,102,897 km (0.098 R)
• M12: 2,604,798 km (0.096 R)
• M13: 3,045,513 km (0.071 R)
• M14: 3,143,051 km (0.071 R)
• M15: 3,258,242 km (0.117 R)
• M16: 3,374,778 km (0.074 R)
• M17: 3,767,473 km (0.113 R)
• M18: 3,854,688 km (0.093 R)
• M19: 4,102,871 km (0.065 R)
• M20: 4,210,731 km (0.104 R)
• M21: 4,447,993 km (0.117 R)
• M22: 5,108,169 km (0.112 R)
• M23: 5,322,094 km (0.077 R)
• M24: 5,558,758 km (0.11 R)
• M25: 5,618,447 km (0.099 R)
• M26: 5,678,436 km (0.059 R)
• M27: 6,602,951 km (0.101 R)
• M28: 6,708,567 km (0.089 R)
• M29: 6,793,389 km (0.083 R)
• M30: 7,245,025 km (0.057 R)
• M31: 7,375,923 km (0.113 R)
• M32: 7,773,105 km (0.071 R)
• M33: 8,109,551 km (0.081 R)
• M34: 8,634,639 km (0.082 R)
• M35: 9,123,525 km (0.088 R)
• M36: 9,241,408 km (0.117 R)
• M37: 9,717,429 km (0.079 R)
• M38: 10,128,524 km (0.11 R)
• M39: 10,348,433 km (0.051 R)
• M40: 10,520,470 km (0.105 R)
• M41: 10,644,038 km (0.059 R)
• M42: 10,817,871 km (0.076 R)
• M43: 10,917,503 km (0.068 R)
• M44: 11,168,229 km (0.079 R)
• M45: 11,573,190 km (0.088 R)
• M46: 12,060,431 km (0.111 R)
• M47: 12,345,564 km (0.083 R)
• M48: 12,528,223 km (0.053 R)
• M49: 12,816,947 km (0.086 R)
• M50: 13,001,850 km (0.102 R)
• M51: 13,134,543 km (0.116 R)
• M52: 13,696,433 km (0.109 R)
• M53: 14,430,510 km (0.042 R)
• M54: 14,816,173 km (0.051 R)
• M55: 14,927,025 km (0.091 R)
• M56: 15,205,277 km (0.104 R)
• M57: 15,823,416 km (0.077 R)
• M58: 16,135,626 km (0.115 R)
• M59: 16,593,396 km (0.062 R)
• M60: 16,650,841 km (0.108 R)
• M61: 17,492,329 km (0.038 R)
• M62: 17,785,840 km (0.109 R)
• M63: 17,962,516 km (0.078 R)
• M64: 18,228,949 km (0.087 R)
• M65: 18,855,316 km (0.032 R)
• M66: 18,915,454 km (0.079 R)
• M67: 20,006,920 km (0.114 R)
• M68: 20,190,776 km (0.055 R)
• M69: 20,436,864 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.2

Radius: 14.9

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.88 AU - 4.86 AU

Year: 3960 Days

Day: 5.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 97,353,107 km

• M1: 200,760 km (0.076 R)
• M2: 405,709 km (0.066 R)
• M3: 656,884 km (0.096 R)
• M4: 862,432 km (0.026 R)
• M5: 1,003,054 km (0.088 R)
• M6: 1,152,053 km (0.077 R)
• M7: 1,277,117 km (0.081 R)
• M8: 1,576,612 km (0.114 R)
• M9: 1,669,811 km (0.098 R)
• M10: 1,886,878 km (0.113 R)
• M11: 2,165,130 km (0.047 R)
• M12: 2,525,511 km (0.057 R)
• M13: 2,691,864 km (0.103 R)
• M14: 3,036,089 km (0.105 R)
• M15: 3,213,512 km (0.032 R)
• M16: 3,318,829 km (0.077 R)
• M17: 3,517,345 km (0.051 R)
• M18: 3,641,511 km (0.088 R)
• M19: 4,251,571 km (0.116 R)
• M20: 4,721,758 km (0.036 R)
• M21: 4,876,442 km (0.105 R)
• M22: 5,015,418 km (0.053 R)
• M23: 5,138,088 km (0.067 R)
• M24: 5,297,410 km (0.101 R)
• M25: 5,440,426 km (0.089 R)
• M26: 5,566,686 km (0.116 R)
• M27: 5,748,597 km (0.027 R)
• M28: 5,969,703 km (0.099 R)
• M29: 6,174,802 km (0.106 R)
• M30: 6,439,291 km (0.075 R)
• M31: 7,097,222 km (0.101 R)
• M32: 7,255,198 km (0.089 R)
• M33: 7,374,577 km (0.053 R)
• M34: 7,554,692 km (0.085 R)
• M35: 7,797,191 km (0.087 R)
• M36: 8,021,737 km (0.051 R)
• M37: 8,582,131 km (0.096 R)
• M38: 8,962,708 km (0.056 R)
• M39: 9,370,661 km (0.035 R)
• M40: 9,544,195 km (0.078 R)
• M41: 9,740,766 km (0.111 R)
• M42: 9,872,562 km (0.06 R)
• M43: 9,982,816 km (0.099 R)
• M44: 10,948,320 km (0.109 R)
• M45: 11,062,613 km (0.079 R)
• M46: 11,177,205 km (0.102 R)
• M47: 11,292,246 km (0.04 R)
• M48: 11,732,961 km (0.119 R)
• M49: 11,920,108 km (0.027 R)
• M50: 12,416,474 km (0.086 R)
• M51: 12,919,571 km (0.067 R)
• M52: 13,040,297 km (0.111 R)
• M53: 13,600,840 km (0.065 R)
• M54: 13,748,344 km (0.048 R)
• M55: 14,094,663 km (0.053 R)
• M56: 14,318,760 km (0.076 R)
• M57: 14,770,546 km (0.091 R)
• M58: 15,049,097 km (0.068 R)
• M59: 15,201,687 km (0.109 R)
• M60: 15,457,200 km (0.091 R)
• M61: 15,714,209 km (0.112 R)
• M62: 16,729,829 km (0.107 R)
• M63: 16,967,241 km (0.06 R)
• M64: 17,232,328 km (0.043 R)
• M65: 17,338,842 km (0.057 R)
• M66: 17,632,652 km (0.113 R)
• M67: 17,793,620 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.4

Radius: 12.2

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.82 AU - 7.14 AU

Year: 6339 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 97,353,107 km

• M1: 255,812 km (0.073 R)
• M2: 337,942 km (0.102 R)
• M3: 518,506 km (0.093 R)
• M4: 622,926 km (0.087 R)
• M5: 1,296,864 km (0.096 R)
• M6: 1,503,758 km (0.089 R)
• M7: 1,762,413 km (0.029 R)
• M8: 3,035,790 km (0.096 R)
• M9: 3,679,210 km (0.106 R)
• M10: 4,420,916 km (0.117 R)
• M11: 4,506,187 km (0.072 R)
• M12: 4,765,440 km (0.089 R)
• M13: 4,852,955 km (0.088 R)
• M14: 5,178,480 km (0.114 R)
• M15: 5,541,704 km (0.091 R)
• M16: 5,882,188 km (0.072 R)
• M17: 6,648,429 km (0.098 R)
• M18: 6,943,884 km (0.042 R)
• M19: 7,143,448 km (0.053 R)
• M20: 7,277,338 km (0.112 R)
• M21: 7,582,069 km (0.09 R)
• M22: 8,485,640 km (0.088 R)
• M23: 8,698,967 km (0.111 R)
• M24: 8,806,378 km (0.066 R)
• M25: 8,914,238 km (0.113 R)
• M26: 9,533,424 km (0.099 R)
• M27: 10,204,220 km (0.107 R)
• M28: 10,545,453 km (0.115 R)
• M29: 10,929,022 km (0.113 R)
• M30: 11,473,558 km (0.107 R)
• M31: 12,387,601 km (0.054 R)
• M32: 12,914,485 km (0.107 R)
• M33: 13,160,274 km (0.083 R)
• M34: 13,448,849 km (0.078 R)
• M35: 14,116,354 km (0.08 R)
• M36: 14,200,578 km (0.096 R)
• M37: 15,009,005 km (0.118 R)
• M38: 15,181,042 km (0.11 R)
• M39: 15,397,062 km (0.081 R)
• M40: 16,051,253 km (0.089 R)
• M41: 16,139,217 km (0.078 R)
• M42: 16,359,724 km (0.077 R)
• M43: 16,759,150 km (0.042 R)
• M44: 17,432,191 km (0.06 R)
• M45: 17,522,548 km (0.058 R)
• M46: 17,613,055 km (0.081 R)
• M47: 18,481,171 km (0.065 R)
• M48: 18,989,954 km (0.108 R)
• M49: 19,129,678 km (0.08 R)
• M50: 20,021,730 km (0.05 R)
• M51: 20,496,703 km (0.07 R)
• M52: 20,639,869 km (0.106 R)
• M53: 21,409,400 km (0.1 R)
• M54: 21,992,533 km (0.09 R)
• M55: 22,877,254 km (0.106 R)
• M56: 23,423,735 km (0.11 R)
• M57: 23,924,140 km (0.081 R)
• M58: 24,884,708 km (0.091 R)
• M59: 24,986,584 km (0.113 R)
• M60: 25,600,684 km (0.067 R)
• M61: 26,167,809 km (0.102 R)
• M62: 26,478,973 km (0.096 R)
• M63: 26,791,483 km (0.063 R)
• M64: 28,318,428 km (0.093 R)
• M65: 28,584,563 km (0.111 R)
• M66: 28,905,151 km (0.101 R)
• M67: 29,119,375 km (0.073 R)
• M68: 30,579,750 km (0.063 R)
• M69: 30,852,915 km (0.106 R)
• M70: 31,291,387 km (0.102 R)
• M71: 31,401,341 km (0.12 R)
• M72: 32,619,517 km (0.101 R)
• M73: 33,066,365 km (0.109 R)
• M74: 33,684,055 km (0.089 R)
• M75: 33,796,702 km (0.089 R)
• M76: 33,909,649 km (0.1 R)
• M77: 34,248,787 km (0.114 R)
• M78: 34,759,813 km (0.113 R)
• M79: 35,044,947 km (0.083 R)
• M80: 36,019,727 km (0.106 R)
• M81: 37,410,987 km (0.089 R)
• M82: 37,820,137 km (0.036 R)
• M83: 37,995,914 km (0.108 R)
• M84: 38,113,199 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896

Radius: 4

Gravity: 56 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 11.35 AU - 18.75 AU

Year: 25308 Days

Day: 18.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 97,353,107 km

• M1: 606,769 km (0.084 R)
• M2: 1,444,218 km (0.099 R)
• M3: 1,515,726 km (0.111 R)
• M4: 1,737,280 km (0.081 R)
• M5: 1,929,663 km (0.118 R)
• M6: 2,210,309 km (0.099 R)
• M7: 2,292,887 km (0.095 R)
• M8: 2,334,475 km (0.066 R)
• M9: 2,461,035 km (0.065 R)
• M10: 3,126,745 km (0.07 R)
• M11: 3,648,243 km (0.101 R)
• M12: 3,696,863 km (0.114 R)
• M13: 4,401,618 km (0.07 R)
• M14: 4,822,736 km (0.052 R)
• M15: 5,873,063 km (0.098 R)
• M16: 6,218,933 km (0.072 R)
• M17: 6,750,006 km (0.077 R)
• M18: 8,235,961 km (0.107 R)
• M19: 9,480,615 km (0.096 R)
• M20: 9,682,423 km (0.048 R)
• M21: 9,953,794 km (0.097 R)
• M22: 10,296,522 km (0.081 R)
• M23: 10,642,991 km (0.115 R)
• M24: 12,139,718 km (0.105 R)
• M25: 13,853,062 km (0.074 R)
• M26: 14,158,541 km (0.091 R)
• M27: 14,389,221 km (0.049 R)
• M28: 14,621,097 km (0.054 R)
• M29: 17,088,714 km (0.12 R)
• M30: 18,328,133 km (0.083 R)
• M31: 18,495,533 km (0.115 R)
• M32: 19,085,547 km (0.069 R)
• M33: 19,170,369 km (0.102 R)
• M34: 19,681,844 km (0.07 R)
• M35: 20,630,893 km (0.081 R)
• M36: 22,126,871 km (0.103 R)
• M37: 22,842,847 km (0.12 R)
• M38: 23,931,022 km (0.119 R)
• M39: 24,389,390 km (0.119 R)
• M40: 24,758,148 km (0.118 R)
• M41: 24,850,600 km (0.089 R)
• M42: 26,440,376 km (0.114 R)
• M43: 27,678,000 km (0.069 R)
• M44: 28,255,597 km (0.075 R)
• M45: 30,209,345 km (0.068 R)
• M46: 31,402,388 km (0.047 R)
• M47: 34,554,864 km (0.117 R)
• M48: 34,865,280 km (0.096 R)
• M49: 35,593,223 km (0.116 R)
• M50: 36,641,605 km (0.091 R)
• M51: 37,063,770 km (0.117 R)
• M52: 37,381,516 km (0.085 R)
• M53: 37,700,159 km (0.107 R)
• M54: 38,876,148 km (0.107 R)
• M55: 39,847,188 km (0.092 R)
• M56: 40,064,105 km (0.048 R)
• M57: 45,498,547 km (0.084 R)
• M58: 46,749,933 km (0.052 R)
• M59: 47,093,111 km (0.029 R)
• M60: 49,519,139 km (0.06 R)
• M61: 54,491,623 km (0.107 R)
• M62: 55,094,053 km (0.071 R)
• M63: 55,577,554 km (0.082 R)
• M64: 56,184,024 km (0.107 R)
• M65: 57,036,582 km (0.098 R)
• M66: 57,525,767 km (0.051 R)
• M67: 59,372,553 km (0.096 R)
• M68: 60,116,652 km (0.112 R)
• M69: 61,363,700 km (0.034 R)
• M70: 61,488,764 km (0.038 R)
• M71: 61,864,853 km (0.086 R)
• M72: 63,503,099 km (0.102 R)
• M73: 63,883,228 km (0.109 R)
• M74: 64,136,946 km (0.073 R)
• M75: 64,518,270 km (0.085 R)
• M76: 64,900,493 km (0.083 R)
• M77: 65,411,071 km (0.069 R)
• M78: 66,307,910 km (0.097 R)
• M79: 66,822,227 km (0.117 R)
• M80: 68,892,512 km (0.082 R)
• M81: 69,152,813 km (0.089 R)
• M82: 73,627,285 km (0.094 R)
• M83: 74,159,704 km (0.116 R)
• M84: 75,228,580 km (0.092 R)
• M85: 75,630,849 km (0.115 R)
• M86: 76,841,545 km (0.096 R)
• M87: 81,335,315 km (0.11 R)
• M88: 86,193,656 km (0.069 R)
• M89: 87,739,750 km (0.056 R)
• M90: 93,583,042 km (0.103 R)
• M91: 93,727,105 km (0.095 R)
• M92: 94,159,892 km (0.113 R)
• M93: 94,737,788 km (0.115 R)
• M94: 95,461,842 km (0.111 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 12,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit