🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.1 AU - 1.48 AU

Year: 558 Days

Day: 14.7 Hours

Environment

Temp: -31 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.28 AU - 3.16 AU

Year: 1708 Days

Day: 47.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.35 AU - 3.25 AU

Year: 1784 Days

Day: 22.9 Hours

Environment

Temp: -99 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 111,398,098 km

• M1: 402,568 km (0.059 R)
• M2: 1,466,059 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.1

Radius: 13

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.54 AU - 5.46 AU

Year: 4257 Days

Day: 5.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 111,398,098 km

• M1: 174,431 km (0.082 R)
• M2: 276,906 km (0.09 R)
• M3: 450,738 km (0.069 R)
• M4: 879,187 km (0.115 R)
• M5: 979,118 km (0.108 R)
• M6: 1,083,537 km (0.073 R)
• M7: 1,275,771 km (0.088 R)
• M8: 1,361,789 km (0.113 R)
• M9: 1,838,857 km (0.111 R)
• M10: 1,953,748 km (0.1 R)
• M11: 2,037,373 km (0.111 R)
• M12: 2,492,001 km (0.063 R)
• M13: 2,657,008 km (0.119 R)
• M14: 3,393,179 km (0.093 R)
• M15: 3,659,314 km (0.094 R)
• M16: 3,911,087 km (0.108 R)
• M17: 4,277,602 km (0.098 R)
• M18: 4,409,547 km (0.085 R)
• M19: 4,836,798 km (0.089 R)
• M20: 5,277,514 km (0.071 R)
• M21: 5,371,910 km (0.083 R)
• M22: 5,610,519 km (0.107 R)
• M23: 5,731,244 km (0.106 R)
• M24: 5,926,020 km (0.114 R)
• M25: 6,297,322 km (0.107 R)
• M26: 6,473,249 km (0.106 R)
• M27: 7,062,665 km (0.103 R)
• M28: 7,166,935 km (0.113 R)
• M29: 7,696,212 km (0.07 R)
• M30: 7,803,623 km (0.032 R)
• M31: 7,911,483 km (0.082 R)
• M32: 7,992,715 km (0.091 R)
• M33: 8,348,010 km (0.104 R)
• M34: 8,569,265 km (0.058 R)
• M35: 9,244,700 km (0.097 R)
• M36: 9,791,629 km (0.086 R)
• M37: 10,230,849 km (0.111 R)
• M38: 10,467,812 km (0.06 R)
• M39: 10,646,731 km (0.097 R)
• M40: 10,826,548 km (0.097 R)
• M41: 12,114,136 km (0.034 R)
• M42: 13,063,335 km (0.073 R)
• M43: 13,676,836 km (0.031 R)
• M44: 13,839,897 km (0.1 R)
• M45: 14,036,319 km (0.075 R)
• M46: 14,200,877 km (0.068 R)
• M47: 14,531,638 km (0.118 R)
• M48: 14,764,711 km (0.091 R)
• M49: 14,865,092 km (0.07 R)
• M50: 15,133,620 km (0.111 R)
• M51: 15,812,046 km (0.032 R)
• M52: 15,914,670 km (0.103 R)
• M53: 16,396,525 km (0.11 R)
• M54: 17,023,191 km (0.101 R)
• M55: 18,877,157 km (0.062 R)
• M56: 19,058,769 km (0.055 R)
• M57: 19,240,979 km (0.107 R)
• M58: 19,350,634 km (0.105 R)
• M59: 19,643,996 km (0.097 R)
• M60: 19,791,200 km (0.101 R)
• M61: 20,012,754 km (0.08 R)
• M62: 20,907,050 km (0.067 R)
• M63: 21,132,644 km (0.11 R)
• M64: 21,738,366 km (0.112 R)
• M65: 21,928,804 km (0.104 R)
• M66: 22,426,516 km (0.097 R)
• M67: 23,082,951 km (0.101 R)
• M68: 23,706,775 km (0.116 R)
• M69: 23,824,209 km (0.068 R)
• M70: 24,731,969 km (0.049 R)
• M71: 25,210,084 km (0.083 R)
• M72: 25,410,246 km (0.032 R)
• M73: 26,989,251 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.6

Radius: 14.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.71 AU - 6.69 AU

Year: 5182 Days

Day: 5.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 111,398,098 km

• M1: 222,901 km (0.092 R)
• M2: 391,348 km (0.098 R)
• M3: 528,230 km (0.085 R)
• M4: 792,420 km (0.101 R)
• M5: 904,918 km (0.109 R)
• M6: 1,254,378 km (0.109 R)
• M7: 1,823,448 km (0.071 R)
• M8: 2,270,148 km (0.112 R)
• M9: 2,375,913 km (0.087 R)
• M10: 2,498,883 km (0.114 R)
• M11: 3,095,778 km (0.09 R)
• M12: 3,594,538 km (0.117 R)
• M13: 3,700,902 km (0.092 R)
• M14: 3,880,718 km (0.112 R)
• M15: 4,193,079 km (0.119 R)
• M16: 4,513,817 km (0.047 R)
• M17: 4,940,918 km (0.095 R)
• M18: 5,483,061 km (0.104 R)
• M19: 5,876,055 km (0.087 R)
• M20: 6,558,819 km (0.073 R)
• M21: 7,154,668 km (0.054 R)
• M22: 7,379,813 km (0.034 R)
• M23: 7,860,321 km (0.051 R)
• M24: 8,115,984 km (0.104 R)
• M25: 8,327,365 km (0.095 R)
• M26: 8,516,756 km (0.047 R)
• M27: 8,659,772 km (0.1 R)
• M28: 9,485,253 km (0.118 R)
• M29: 9,882,435 km (0.107 R)
• M30: 10,259,871 km (0.114 R)
• M31: 10,899,402 km (0.079 R)
• M32: 11,446,780 km (0.108 R)
• M33: 11,657,564 km (0.103 R)
• M34: 12,056,541 km (0.051 R)
• M35: 12,432,780 km (0.088 R)
• M36: 12,813,058 km (0.105 R)
• M37: 12,977,166 km (0.098 R)
• M38: 13,279,953 km (0.105 R)
• M39: 13,446,156 km (0.072 R)
• M40: 13,668,757 km (0.1 R)
• M41: 13,892,556 km (0.09 R)
• M42: 14,117,551 km (0.061 R)
• M43: 14,287,195 km (0.113 R)
• M44: 14,886,185 km (0.048 R)
• M45: 15,406,038 km (0.119 R)
• M46: 15,990,816 km (0.04 R)
• M47: 16,315,443 km (0.112 R)
• M48: 16,553,004 km (0.089 R)
• M49: 16,702,004 km (0.064 R)
• M50: 17,031,568 km (0.102 R)
• M51: 17,242,351 km (0.098 R)
• M52: 17,363,226 km (0.031 R)
• M53: 17,788,384 km (0.088 R)
• M54: 18,186,314 km (0.103 R)
• M55: 18,525,303 km (0.075 R)
• M56: 19,334,926 km (0.105 R)
• M57: 19,492,004 km (0.052 R)
• M58: 19,617,816 km (0.057 R)
• M59: 19,775,642 km (0.113 R)
• M60: 20,187,933 km (0.07 R)
• M61: 20,603,068 km (0.096 R)
• M62: 20,731,273 km (0.076 R)
• M63: 21,247,236 km (0.107 R)
• M64: 21,734,626 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.2

Radius: 11.3

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 9.31 AU - 12.59 AU

Year: 13798 Days

Day: 8.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 111,398,098 km

• M1: 173,234 km (0.074 R)
• M2: 286,929 km (0.097 R)
• M3: 822,339 km (0.082 R)
• M4: 961,765 km (0.042 R)
• M5: 1,574,368 km (0.079 R)
• M6: 1,649,167 km (0.069 R)
• M7: 1,725,163 km (0.104 R)
• M8: 2,041,562 km (0.082 R)
• M9: 2,151,217 km (0.113 R)
• M10: 2,262,967 km (0.065 R)
• M11: 2,434,257 km (0.078 R)
• M12: 2,580,264 km (0.101 R)
• M13: 2,669,275 km (0.109 R)
• M14: 2,820,219 km (0.118 R)
• M15: 3,225,629 km (0.109 R)
• M16: 3,987,980 km (0.084 R)
• M17: 4,091,502 km (0.114 R)
• M18: 4,336,543 km (0.11 R)
• M19: 4,914,888 km (0.116 R)
• M20: 5,063,290 km (0.088 R)
• M21: 5,250,885 km (0.111 R)
• M22: 5,479,172 km (0.083 R)
• M23: 5,555,915 km (0.116 R)
• M24: 5,984,962 km (0.118 R)
• M25: 6,143,685 km (0.073 R)
• M26: 6,874,920 km (0.111 R)
• M27: 7,166,785 km (0.055 R)
• M28: 7,293,046 km (0.097 R)
• M29: 7,462,690 km (0.084 R)
• M30: 7,892,484 km (0.029 R)
• M31: 7,979,401 km (0.075 R)
• M32: 8,463,350 km (0.032 R)
• M33: 8,956,873 km (0.102 R)
• M34: 9,138,635 km (0.094 R)
• M35: 9,229,889 km (0.035 R)
• M36: 9,877,947 km (0.115 R)
• M37: 10,112,966 km (0.096 R)
• M38: 10,780,771 km (0.107 R)
• M39: 11,561,522 km (0.085 R)
• M40: 12,310,110 km (0.109 R)
• M41: 13,022,794 km (0.065 R)
• M42: 13,177,328 km (0.097 R)
• M43: 13,853,810 km (0.076 R)
• M44: 14,541,511 km (0.056 R)
• M45: 14,862,848 km (0.116 R)
• M46: 15,024,264 km (0.036 R)
• M47: 16,559,437 km (0.093 R)
• M48: 17,458,969 km (0.06 R)
• M49: 17,572,514 km (0.066 R)
• M50: 18,721,725 km (0.119 R)
• M51: 19,246,813 km (0.11 R)
• M52: 19,717,598 km (0.114 R)
• M53: 20,132,582 km (0.06 R)
• M54: 20,971,378 km (0.101 R)
• M55: 21,273,715 km (0.108 R)
• M56: 23,055,575 km (0.065 R)
• M57: 23,180,190 km (0.095 R)
• M58: 24,693,522 km (0.102 R)
• M59: 25,914,091 km (0.108 R)
• M60: 26,303,494 km (0.117 R)
• M61: 26,564,243 km (0.098 R)
• M62: 30,508,990 km (0.066 R)
• M63: 32,793,798 km (0.077 R)
• M64: 33,355,987 km (0.073 R)
• M65: 34,134,195 km (0.12 R)
• M66: 35,780,669 km (0.11 R)
• M67: 36,431,869 km (0.11 R)
• M68: 37,014,104 km (0.086 R)
• M69: 37,379,571 km (0.117 R)
• M70: 37,672,783 km (0.12 R)
• M71: 39,971,055 km (0.085 R)
• M72: 40,120,952 km (0.079 R)
• M73: 41,023,775 km (0.108 R)
• M74: 41,250,566 km (0.063 R)
• M75: 42,314,356 km (0.119 R)
• M76: 43,003,105 km (0.064 R)
• M77: 43,156,592 km (0.102 R)
• M78: 45,169,132 km (0.105 R)
• M79: 47,053,916 km (0.114 R)
• M80: 49,526,170 km (0.114 R)
• M81: 49,928,888 km (0.103 R)
• M82: 50,899,928 km (0.099 R)
• M83: 52,614,020 km (0.05 R)
• M84: 53,107,244 km (0.048 R)
• M85: 53,601,964 km (0.083 R)
• M86: 55,012,074 km (0.092 R)
• M87: 55,763,504 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 807.2

Radius: 3.5

Gravity: 65.89 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 11.83 AU - 12.07 AU

Year: 15731 Days

Day: 16.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 111,398,098 km

• M1: 75,397 km (0.092 R)
• M2: 122,521 km (0.113 R)
• M3: 144,960 km (0.062 R)
• M4: 222,751 km (0.066 R)
• M5: 297,999 km (0.109 R)
• M6: 472,580 km (0.088 R)
• M7: 718,668 km (0.094 R)
• M8: 763,248 km (0.075 R)
• M9: 1,024,297 km (0.087 R)
• M10: 1,151,604 km (0.097 R)
• M11: 2,047,396 km (0.118 R)
• M12: 2,852,831 km (0.034 R)
• M13: 3,140,957 km (0.095 R)
• M14: 3,475,907 km (0.077 R)
• M15: 3,513,755 km (0.079 R)
• M16: 4,099,131 km (0.081 R)
• M17: 4,139,223 km (0.096 R)
• M18: 5,139,734 km (0.105 R)
• M19: 5,269,884 km (0.072 R)
• M20: 6,535,632 km (0.09 R)
• M21: 6,723,676 km (0.07 R)
• M22: 7,105,450 km (0.1 R)
• M23: 7,396,268 km (0.078 R)
• M24: 7,790,160 km (0.107 R)
• M25: 9,011,925 km (0.085 R)
• M26: 9,538,360 km (0.066 R)
• M27: 10,786,605 km (0.075 R)
• M28: 10,953,107 km (0.083 R)
• M29: 11,684,641 km (0.084 R)
• M30: 12,548,120 km (0.083 R)
• M31: 12,664,806 km (0.03 R)
• M32: 12,723,299 km (0.082 R)
• M33: 13,671,151 km (0.09 R)
• M34: 14,214,191 km (0.086 R)
• M35: 14,949,166 km (0.062 R)
• M36: 15,258,983 km (0.071 R)
• M37: 15,571,044 km (0.105 R)
• M38: 16,519,494 km (0.034 R)
• M39: 17,682,319 km (0.111 R)
• M40: 18,538,318 km (0.115 R)
• M41: 20,222,191 km (0.08 R)
• M42: 20,909,294 km (0.063 R)
• M43: 21,954,236 km (0.114 R)
• M44: 23,087,290 km (0.1 R)
• M45: 23,230,305 km (0.111 R)
• M46: 23,301,963 km (0.077 R)
• M47: 24,166,788 km (0.069 R)
• M48: 24,384,752 km (0.1 R)
• M49: 25,410,096 km (0.11 R)
• M50: 26,076,554 km (0.094 R)
• M51: 27,275,731 km (0.054 R)
• M52: 27,881,902 km (0.089 R)
• M53: 28,110,487 km (0.112 R)
• M54: 28,416,116 km (0.064 R)
• M55: 29,571,909 km (0.096 R)
• M56: 29,727,191 km (0.117 R)
• M57: 29,804,982 km (0.078 R)
• M58: 30,586,033 km (0.107 R)
• M59: 32,009,008 km (0.096 R)
• M60: 35,165,074 km (0.075 R)
• M61: 35,329,482 km (0.053 R)
• M62: 36,738,095 km (0.081 R)
• M63: 37,575,245 km (0.11 R)
• M64: 39,353,515 km (0.062 R)
• M65: 39,609,776 km (0.085 R)
• M66: 41,506,079 km (0.036 R)
• M67: 42,202,906 km (0.04 R)
• M68: 42,815,808 km (0.086 R)
• M69: 43,255,327 km (0.12 R)
• M70: 43,431,703 km (0.093 R)
• M71: 46,284,085 km (0.093 R)
• M72: 47,550,880 km (0.109 R)
• M73: 47,823,747 km (0.109 R)
• M74: 51,792,728 km (0.109 R)
• M75: 52,167,171 km (0.106 R)
• M76: 52,730,706 km (0.078 R)
• M77: 53,013,297 km (0.115 R)
• M78: 53,390,732 km (0.052 R)
• M79: 54,623,568 km (0.113 R)
• M80: 55,004,743 km (0.084 R)
• M81: 57,310,645 km (0.049 R)
• M82: 57,601,164 km (0.051 R)
• M83: 58,280,787 km (0.06 R)
• M84: 58,475,414 km (0.112 R)
• M85: 58,572,802 km (0.063 R)
• M86: 59,745,949 km (0.101 R)
• M87: 62,115,579 km (0.088 R)
• M88: 63,111,901 km (0.044 R)
• M89: 63,311,764 km (0.118 R)
• M90: 63,812,468 km (0.043 R)
• M91: 66,437,013 km (0.086 R)
• M92: 67,762,450 km (0.025 R)
• M93: 67,864,775 km (0.065 R)
• M94: 68,274,523 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 935

Radius: 7.8

Gravity: 15.37 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 15.33 AU - 21.69 AU

Year: 30325 Days

Day: 22.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 111,398,098 km

• M1: 365,767 km (0.112 R)
• M2: 734,077 km (0.073 R)
• M3: 987,346 km (0.061 R)
• M4: 1,124,228 km (0.109 R)
• M5: 1,732,792 km (0.05 R)
• M6: 1,856,958 km (0.082 R)
• M7: 2,158,398 km (0.047 R)
• M8: 2,953,062 km (0.084 R)
• M9: 3,616,678 km (0.096 R)
• M10: 4,381,123 km (0.11 R)
• M11: 5,253,877 km (0.093 R)
• M12: 6,370,027 km (0.09 R)
• M13: 10,579,262 km (0.109 R)
• M14: 10,807,997 km (0.113 R)
• M15: 11,347,896 km (0.119 R)
• M16: 12,695,623 km (0.087 R)
• M17: 13,760,012 km (0.071 R)
• M18: 13,926,215 km (0.095 R)
• M19: 14,093,167 km (0.086 R)
• M20: 16,323,222 km (0.074 R)
• M21: 16,411,186 km (0.089 R)
• M22: 16,853,397 km (0.033 R)
• M23: 18,021,158 km (0.106 R)
• M24: 18,385,578 km (0.111 R)
• M25: 23,838,122 km (0.095 R)
• M26: 25,350,107 km (0.056 R)
• M27: 25,860,834 km (0.11 R)
• M28: 26,478,374 km (0.111 R)
• M29: 27,938,001 km (0.078 R)
• M30: 28,043,318 km (0.028 R)
• M31: 30,608,772 km (0.111 R)
• M32: 30,825,988 km (0.081 R)
• M33: 30,934,745 km (0.038 R)
• M34: 31,699,789 km (0.085 R)
• M35: 33,919,672 km (0.106 R)
• M36: 34,144,368 km (0.09 R)
• M37: 34,708,352 km (0.071 R)
• M38: 34,821,448 km (0.11 R)
• M39: 34,934,843 km (0.068 R)
• M40: 35,161,783 km (0.068 R)
• M41: 37,342,172 km (0.071 R)
• M42: 38,039,747 km (0.088 R)
• M43: 40,515,143 km (0.065 R)
• M44: 41,591,798 km (0.084 R)
• M45: 42,314,805 km (0.081 R)
• M46: 44,508,807 km (0.083 R)
• M47: 45,743,588 km (0.102 R)
• M48: 46,614,547 km (0.083 R)
• M49: 49,642,258 km (0.071 R)
• M50: 51,308,629 km (0.066 R)
• M51: 52,732,950 km (0.106 R)
• M52: 53,384,599 km (0.117 R)
• M53: 53,515,347 km (0.099 R)
• M54: 54,959,565 km (0.118 R)
• M55: 55,355,700 km (0.043 R)
• M56: 55,487,945 km (0.058 R)
• M57: 56,017,970 km (0.065 R)
• M58: 56,682,932 km (0.109 R)
• M59: 57,216,847 km (0.062 R)
• M60: 57,618,218 km (0.097 R)
• M61: 62,508,273 km (0.102 R)
• M62: 64,723,968 km (0.07 R)
• M63: 64,863,243 km (0.117 R)
• M64: 65,002,668 km (0.11 R)
• M65: 66,965,243 km (0.038 R)
• M66: 67,812,266 km (0.114 R)
• M67: 68,378,793 km (0.066 R)
• M68: 69,945,232 km (0.072 R)
• M69: 70,231,264 km (0.116 R)
• M70: 71,235,664 km (0.042 R)
• M71: 72,823,346 km (0.068 R)
• M72: 75,886,811 km (0.052 R)
• M73: 77,508,153 km (0.086 R)
• M74: 77,656,255 km (0.08 R)
• M75: 78,248,961 km (0.079 R)
• M76: 82,289,600 km (0.076 R)
• M77: 82,893,975 km (0.12 R)
• M78: 89,328,030 km (0.119 R)
• M79: 89,793,728 km (0.048 R)
• M80: 90,260,174 km (0.106 R)
• M81: 90,571,637 km (0.12 R)
• M82: 94,021,065 km (0.074 R)
• M83: 96,556,599 km (0.12 R)
• M84: 97,353,507 km (0.051 R)
• M85: 98,633,167 km (0.116 R)
• M86: 99,114,573 km (0.033 R)
• M87: 101,370,958 km (0.117 R)
• M88: 103,807,309 km (0.078 R)
• M89: 104,460,304 km (0.062 R)
• M90: 107,085,746 km (0.104 R)
• M91: 109,566,677 km (0.105 R)
• M92: 110,065,137 km (0.1 R)
• M93: 110,897,650 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 16,696 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit