🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.55 AU - 0.71 AU

Year: 323 Days

Day: 25.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 42.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.6

Radius: 13.9

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.89 AU - 2.61 AU

Year: 2179 Days

Day: 8.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 68,772,630 km

• M1: 177,573 km (0.112 R)
• M2: 317,447 km (0.03 R)
• M3: 428,299 km (0.115 R)
• M4: 527,931 km (0.099 R)
• M5: 637,885 km (0.096 R)
• M6: 811,269 km (0.091 R)
• M7: 904,618 km (0.112 R)
• M8: 1,052,421 km (0.052 R)
• M9: 1,187,657 km (0.097 R)
• M10: 1,295,817 km (0.116 R)
• M11: 1,385,127 km (0.056 R)
• M12: 2,017,477 km (0.116 R)
• M13: 2,175,602 km (0.046 R)
• M14: 2,575,028 km (0.102 R)
• M15: 2,689,321 km (0.092 R)
• M16: 2,849,540 km (0.119 R)
• M17: 2,953,062 km (0.073 R)
• M18: 3,458,852 km (0.099 R)
• M19: 3,553,697 km (0.083 R)
• M20: 3,681,753 km (0.04 R)
• M21: 3,778,693 km (0.108 R)
• M22: 4,310,812 km (0.072 R)
• M23: 4,413,287 km (0.095 R)
• M24: 4,516,509 km (0.078 R)
• M25: 4,725,498 km (0.066 R)
• M26: 4,831,263 km (0.101 R)
• M27: 4,991,483 km (0.111 R)
• M28: 5,280,506 km (0.097 R)
• M29: 5,482,463 km (0.118 R)
• M30: 5,989,151 km (0.034 R)
• M31: 6,413,111 km (0.084 R)
• M32: 6,767,508 km (0.099 R)
• M33: 7,047,556 km (0.118 R)
• M34: 7,249,962 km (0.044 R)
• M35: 7,474,807 km (0.083 R)
• M36: 7,826,811 km (0.106 R)
• M37: 8,099,827 km (0.09 R)
• M38: 8,504,489 km (0.089 R)
• M39: 9,178,877 km (0.099 R)
• M40: 9,757,970 km (0.104 R)
• M41: 10,394,808 km (0.111 R)
• M42: 10,881,300 km (0.081 R)
• M43: 11,399,059 km (0.101 R)
• M44: 11,613,133 km (0.044 R)
• M45: 11,756,747 km (0.096 R)
• M46: 11,852,639 km (0.083 R)
• M47: 12,045,471 km (0.08 R)
• M48: 12,287,969 km (0.064 R)
• M49: 12,409,742 km (0.047 R)
• M50: 12,975,521 km (0.103 R)
• M51: 13,373,900 km (0.113 R)
• M52: 13,877,746 km (0.093 R)
• M53: 14,439,186 km (0.103 R)
• M54: 14,748,555 km (0.109 R)
• M55: 15,242,976 km (0.11 R)
• M56: 16,758,552 km (0.109 R)
• M57: 17,192,685 km (0.08 R)
• M58: 17,301,742 km (0.088 R)
• M59: 17,603,032 km (0.084 R)
• M60: 18,628,974 km (0.095 R)
• M61: 18,797,122 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.7

Radius: 9.5

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.48 AU - 2.98 AU

Year: 2912 Days

Day: 14.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 68,772,630 km

• M1: 192,383 km (0.101 R)
• M2: 429,645 km (0.118 R)
• M3: 517,160 km (0.082 R)
• M4: 654,042 km (0.063 R)
• M5: 907,610 km (0.118 R)
• M6: 1,016,069 km (0.073 R)
• M7: 1,228,348 km (0.036 R)
• M8: 1,358,797 km (0.032 R)
• M9: 1,543,551 km (0.043 R)
• M10: 1,905,428 km (0.105 R)
• M11: 2,057,569 km (0.109 R)
• M12: 2,236,638 km (0.106 R)
• M13: 2,316,523 km (0.096 R)
• M14: 2,385,787 km (0.067 R)
• M15: 2,550,344 km (0.109 R)
• M16: 2,915,363 km (0.115 R)
• M17: 3,129,587 km (0.061 R)
• M18: 3,245,227 km (0.058 R)
• M19: 3,427,886 km (0.118 R)
• M20: 3,871,742 km (0.095 R)
• M21: 4,037,796 km (0.115 R)
• M22: 4,192,032 km (0.063 R)
• M23: 4,434,380 km (0.091 R)
• M24: 4,549,870 km (0.118 R)
• M25: 4,710,538 km (0.092 R)
• M26: 4,828,570 km (0.08 R)
• M27: 4,947,501 km (0.066 R)
• M28: 5,022,449 km (0.098 R)
• M29: 5,295,166 km (0.109 R)
• M30: 5,448,654 km (0.112 R)
• M31: 5,572,670 km (0.101 R)
• M32: 5,729,000 km (0.108 R)
• M33: 5,982,120 km (0.088 R)
• M34: 6,336,068 km (0.099 R)
• M35: 6,482,973 km (0.111 R)
• M36: 6,696,898 km (0.071 R)
• M37: 6,963,631 km (0.118 R)
• M38: 7,199,846 km (0.034 R)
• M39: 7,421,700 km (0.034 R)
• M40: 7,645,648 km (0.111 R)
• M41: 8,012,163 km (0.091 R)
• M42: 8,135,731 km (0.115 R)
• M43: 8,295,352 km (0.09 R)
• M44: 8,402,464 km (0.063 R)
• M45: 8,599,933 km (0.113 R)
• M46: 8,690,140 km (0.101 R)
• M47: 8,926,355 km (0.079 R)
• M48: 9,091,063 km (0.068 R)
• M49: 9,498,118 km (0.089 R)
• M50: 9,591,467 km (0.091 R)
• M51: 9,797,763 km (0.12 R)
• M52: 9,911,009 km (0.088 R)
• M53: 10,081,700 km (0.073 R)
• M54: 10,329,883 km (0.115 R)
• M55: 10,406,626 km (0.119 R)
• M56: 10,871,277 km (0.047 R)
• M57: 10,949,517 km (0.119 R)
• M58: 11,244,075 km (0.064 R)
• M59: 12,346,462 km (0.074 R)
• M60: 12,489,178 km (0.06 R)
• M61: 12,673,632 km (0.1 R)
• M62: 12,817,695 km (0.111 R)
• M63: 12,900,273 km (0.102 R)
• M64: 13,045,084 km (0.07 R)
• M65: 13,441,069 km (0.074 R)
• M66: 13,735,478 km (0.051 R)
• M67: 13,862,337 km (0.09 R)
• M68: 14,138,345 km (0.063 R)
• M69: 14,287,793 km (0.074 R)
• M70: 14,416,298 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.7

Radius: 10.3

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.62 AU - 5.58 AU

Year: 6370 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 68,772,630 km

• M1: 131,347 km (0.083 R)
• M2: 201,957 km (0.058 R)
• M3: 366,964 km (0.103 R)
• M4: 585,825 km (0.086 R)
• M5: 1,247,048 km (0.112 R)
• M6: 1,569,132 km (0.073 R)
• M7: 1,682,378 km (0.053 R)
• M8: 1,837,810 km (0.1 R)
• M9: 1,917,246 km (0.06 R)
• M10: 2,121,298 km (0.05 R)
• M11: 2,310,988 km (0.115 R)
• M12: 2,550,644 km (0.1 R)
• M13: 2,662,244 km (0.09 R)
• M14: 3,101,313 km (0.077 R)
• M15: 3,269,013 km (0.107 R)
• M16: 3,464,238 km (0.058 R)
• M17: 3,613,237 km (0.077 R)
• M18: 4,021,041 km (0.054 R)
• M19: 4,742,253 km (0.104 R)
• M20: 5,217,076 km (0.105 R)
• M21: 5,590,323 km (0.034 R)
• M22: 6,061,706 km (0.11 R)
• M23: 6,332,627 km (0.102 R)
• M24: 6,761,824 km (0.088 R)
• M25: 6,886,140 km (0.07 R)
• M26: 7,423,346 km (0.116 R)
• M27: 7,519,537 km (0.111 R)
• M28: 8,006,777 km (0.113 R)
• M29: 8,437,320 km (0.114 R)
• M30: 8,537,700 km (0.115 R)
• M31: 8,605,019 km (0.064 R)
• M32: 8,705,998 km (0.069 R)
• M33: 8,773,766 km (0.026 R)
• M34: 8,909,451 km (0.061 R)
• M35: 9,011,776 km (0.107 R)
• M36: 9,459,672 km (0.071 R)
• M37: 10,056,268 km (0.069 R)
• M38: 10,127,327 km (0.119 R)
• M39: 11,322,764 km (0.104 R)
• M40: 11,396,665 km (0.102 R)
• M41: 11,582,166 km (0.118 R)
• M42: 11,656,666 km (0.099 R)
• M43: 12,869,606 km (0.057 R)
• M44: 12,985,394 km (0.103 R)
• M45: 13,373,750 km (0.072 R)
• M46: 13,844,984 km (0.107 R)
• M47: 14,042,902 km (0.073 R)
• M48: 14,201,924 km (0.074 R)
• M49: 15,577,626 km (0.086 R)
• M50: 15,701,045 km (0.114 R)
• M51: 15,948,928 km (0.111 R)
• M52: 16,616,135 km (0.081 R)
• M53: 16,742,246 km (0.057 R)
• M54: 16,826,619 km (0.113 R)
• M55: 17,165,009 km (0.082 R)
• M56: 17,548,578 km (0.103 R)
• M57: 17,762,802 km (0.093 R)
• M58: 18,021,008 km (0.057 R)
• M59: 18,280,561 km (0.099 R)
• M60: 20,626,405 km (0.068 R)
• M61: 20,852,597 km (0.094 R)
• M62: 21,261,747 km (0.05 R)
• M63: 22,505,204 km (0.117 R)
• M64: 22,784,653 km (0.11 R)
• M65: 22,878,152 km (0.037 R)
• M66: 23,347,141 km (0.073 R)
• M67: 23,582,908 km (0.092 R)
• M68: 23,724,726 km (0.105 R)
• M69: 24,056,684 km (0.116 R)
• M70: 24,199,400 km (0.064 R)
• M71: 25,788,429 km (0.09 R)
• M72: 27,014,533 km (0.108 R)
• M73: 27,410,818 km (0.118 R)
• M74: 29,066,118 km (0.118 R)
• M75: 29,880,230 km (0.11 R)
• M76: 30,238,816 km (0.111 R)
• M77: 30,392,902 km (0.061 R)
• M78: 31,323,101 km (0.113 R)
• M79: 31,531,042 km (0.077 R)
• M80: 31,635,163 km (0.084 R)
• M81: 32,525,120 km (0.097 R)
• M82: 33,158,218 km (0.103 R)
• M83: 34,436,831 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.1

Radius: 12.7

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.42 AU - 6.28 AU

Year: 9136 Days

Day: 5.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 68,772,630 km

• M1: 169,046 km (0.106 R)
• M2: 398,080 km (0.103 R)
• M3: 578,046 km (0.06 R)
• M4: 679,773 km (0.084 R)
• M5: 1,043,894 km (0.119 R)
• M6: 1,346,231 km (0.083 R)
• M7: 1,528,890 km (0.032 R)
• M8: 1,612,815 km (0.087 R)
• M9: 1,941,780 km (0.107 R)
• M10: 2,948,125 km (0.091 R)
• M11: 3,407,391 km (0.088 R)
• M12: 3,546,966 km (0.11 R)
• M13: 3,774,055 km (0.09 R)
• M14: 4,302,734 km (0.109 R)
• M15: 4,393,241 km (0.12 R)
• M16: 4,514,714 km (0.066 R)
• M17: 4,917,731 km (0.054 R)
• M18: 5,267,790 km (0.119 R)
• M19: 5,659,138 km (0.063 R)
• M20: 6,059,911 km (0.06 R)
• M21: 6,161,637 km (0.119 R)
• M22: 6,435,551 km (0.099 R)
• M23: 6,995,346 km (0.101 R)
• M24: 7,137,913 km (0.037 R)
• M25: 7,754,106 km (0.104 R)
• M26: 8,199,310 km (0.118 R)
• M27: 8,500,899 km (0.112 R)
• M28: 8,614,893 km (0.052 R)
• M29: 9,114,998 km (0.106 R)
• M30: 10,304,750 km (0.033 R)
• M31: 10,835,523 km (0.118 R)
• M32: 11,083,557 km (0.055 R)
• M33: 11,208,172 km (0.093 R)
• M34: 12,394,632 km (0.083 R)
• M35: 13,002,748 km (0.09 R)
• M36: 13,398,883 km (0.117 R)
• M37: 13,487,445 km (0.097 R)
• M38: 13,709,747 km (0.116 R)
• M39: 14,656,552 km (0.103 R)
• M40: 14,930,915 km (0.096 R)
• M41: 15,022,768 km (0.093 R)
• M42: 15,531,401 km (0.086 R)
• M43: 15,717,650 km (0.108 R)
• M44: 15,857,973 km (0.084 R)
• M45: 16,281,185 km (0.117 R)
• M46: 17,138,830 km (0.085 R)
• M47: 18,848,434 km (0.074 R)
• M48: 19,146,882 km (0.107 R)
• M49: 20,102,513 km (0.091 R)
• M50: 20,560,582 km (0.115 R)
• M51: 20,714,069 km (0.057 R)
• M52: 22,743,663 km (0.119 R)
• M53: 22,955,494 km (0.087 R)
• M54: 23,327,544 km (0.075 R)
• M55: 23,487,614 km (0.077 R)
• M56: 23,808,950 km (0.082 R)
• M57: 23,970,216 km (0.045 R)
• M58: 24,455,961 km (0.032 R)
• M59: 24,890,393 km (0.105 R)
• M60: 25,108,656 km (0.117 R)
• M61: 25,272,765 km (0.111 R)
• M62: 26,264,749 km (0.087 R)
• M63: 27,157,249 km (0.117 R)
• M64: 27,494,593 km (0.048 R)
• M65: 28,857,429 km (0.088 R)
• M66: 30,067,975 km (0.062 R)
• M67: 31,060,108 km (0.07 R)
• M68: 31,412,710 km (0.038 R)
• M69: 32,598,124 km (0.118 R)
• M70: 33,316,343 km (0.075 R)
• M71: 34,707,454 km (0.098 R)
• M72: 35,012,334 km (0.056 R)
• M73: 35,379,448 km (0.097 R)
• M74: 37,358,927 km (0.086 R)
• M75: 38,047,526 km (0.032 R)
• M76: 39,056,862 km (0.085 R)
• M77: 39,437,589 km (0.097 R)
• M78: 40,074,876 km (0.105 R)
• M79: 40,266,660 km (0.073 R)
• M80: 41,037,239 km (0.077 R)
• M81: 43,050,078 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.6

Radius: 5.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.36 AU - 7.86 AU

Year: 10973 Days

Day: 16.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 68,772,630 km

• M1: 87,365 km (0.081 R)
• M2: 236,963 km (0.105 R)
• M3: 317,447 km (0.118 R)
• M4: 357,389 km (0.116 R)
• M5: 709,244 km (0.1 R)
• M6: 1,341,295 km (0.092 R)
• M7: 1,450,651 km (0.067 R)
• M8: 2,167,224 km (0.087 R)
• M9: 2,444,130 km (0.111 R)
• M10: 2,510,851 km (0.089 R)
• M11: 3,583,467 km (0.113 R)
• M12: 3,988,728 km (0.099 R)
• M13: 4,028,072 km (0.078 R)
• M14: 4,206,692 km (0.084 R)
• M15: 4,905,015 km (0.113 R)
• M16: 5,550,679 km (0.09 R)
• M17: 5,594,661 km (0.11 R)
• M18: 6,337,265 km (0.062 R)
• M19: 6,568,394 km (0.113 R)
• M20: 6,967,670 km (0.113 R)
• M21: 7,789,561 km (0.084 R)
• M22: 8,463,948 km (0.11 R)
• M23: 8,795,308 km (0.071 R)
• M24: 9,549,730 km (0.059 R)
• M25: 10,108,927 km (0.096 R)
• M26: 10,243,565 km (0.095 R)
• M27: 10,542,012 km (0.101 R)
• M28: 13,001,252 km (0.117 R)
• M29: 13,294,912 km (0.106 R)
• M30: 15,163,390 km (0.086 R)
• M31: 15,348,442 km (0.113 R)
• M32: 16,348,654 km (0.085 R)
• M33: 16,411,784 km (0.092 R)
• M34: 16,729,081 km (0.112 R)
• M35: 17,016,309 km (0.09 R)
• M36: 17,144,514 km (0.095 R)
• M37: 17,563,388 km (0.104 R)
• M38: 18,279,813 km (0.087 R)
• M39: 19,205,375 km (0.114 R)
• M40: 21,067,569 km (0.1 R)
• M41: 22,986,610 km (0.066 R)
• M42: 23,305,852 km (0.109 R)
• M43: 23,590,986 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 517.2

Radius: 4.1

Gravity: 30.77 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.56 AU - 10.02 AU

Year: 19778 Days

Day: 22.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 122.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 68,772,630 km

• M1: 260,151 km (0.07 R)
• M2: 408,103 km (0.072 R)
• M3: 463,005 km (0.088 R)
• M4: 600,785 km (0.115 R)
• M5: 642,523 km (0.117 R)
• M6: 1,269,637 km (0.051 R)
• M7: 1,576,911 km (0.113 R)
• M8: 1,937,442 km (0.06 R)
• M9: 2,872,130 km (0.112 R)
• M10: 3,767,174 km (0.095 R)
• M11: 4,531,918 km (0.099 R)
• M12: 5,211,840 km (0.052 R)
• M13: 5,342,888 km (0.07 R)
• M14: 5,968,656 km (0.11 R)
• M15: 6,806,554 km (0.106 R)
• M16: 6,997,740 km (0.092 R)
• M17: 7,979,999 km (0.047 R)
• M18: 9,266,990 km (0.115 R)
• M19: 9,372,755 km (0.105 R)
• M20: 10,838,815 km (0.114 R)
• M21: 11,912,329 km (0.062 R)
• M22: 12,901,320 km (0.072 R)
• M23: 13,735,328 km (0.108 R)
• M24: 14,098,103 km (0.092 R)
• M25: 14,525,355 km (0.03 R)
• M26: 15,018,729 km (0.106 R)
• M27: 15,895,372 km (0.049 R)
• M28: 16,724,144 km (0.106 R)
• M29: 17,632,353 km (0.113 R)
• M30: 18,957,192 km (0.088 R)
• M31: 19,699,496 km (0.117 R)
• M32: 21,351,655 km (0.107 R)
• M33: 21,491,230 km (0.113 R)
• M34: 21,912,049 km (0.069 R)
• M35: 22,264,950 km (0.083 R)
• M36: 23,478,339 km (0.098 R)
• M37: 23,694,657 km (0.109 R)
• M38: 24,202,093 km (0.109 R)
• M39: 24,420,656 km (0.061 R)
• M40: 25,153,984 km (0.082 R)
• M41: 25,375,389 km (0.05 R)
• M42: 25,894,344 km (0.099 R)
• M43: 27,548,448 km (0.094 R)
• M44: 30,563,443 km (0.114 R)
• M45: 32,872,187 km (0.101 R)
• M46: 33,033,603 km (0.058 R)
• M47: 33,518,899 km (0.119 R)
• M48: 33,762,594 km (0.048 R)
• M49: 33,843,825 km (0.096 R)
• M50: 34,333,310 km (0.101 R)
• M51: 34,496,820 km (0.118 R)
• M52: 36,731,214 km (0.108 R)
• M53: 36,814,839 km (0.086 R)
• M54: 39,268,095 km (0.069 R)
• M55: 40,126,338 km (0.065 R)
• M56: 40,298,674 km (0.052 R)
• M57: 41,164,098 km (0.082 R)
• M58: 41,860,925 km (0.059 R)
• M59: 44,063,604 km (0.115 R)
• M60: 44,955,058 km (0.1 R)
• M61: 45,134,126 km (0.082 R)
• M62: 46,574,754 km (0.058 R)
• M63: 46,937,230 km (0.073 R)
• M64: 47,118,841 km (0.084 R)
• M65: 47,391,708 km (0.111 R)
• M66: 50,706,797 km (0.03 R)
• M67: 50,799,847 km (0.115 R)
• M68: 51,734,534 km (0.042 R)
• M69: 52,769,003 km (0.118 R)
• M70: 53,715,509 km (0.074 R)
• M71: 54,476,663 km (0.094 R)
• M72: 55,433,192 km (0.119 R)
• M73: 57,848,599 km (0.059 R)
• M74: 58,628,752 km (0.087 R)
• M75: 59,608,917 km (0.095 R)
• M76: 60,100,945 km (0.037 R)
• M77: 61,585,255 km (0.077 R)
• M78: 62,681,358 km (0.071 R)
• M79: 62,881,371 km (0.11 R)
• M80: 63,081,533 km (0.057 R)
• M81: 64,186,462 km (0.094 R)
• M82: 64,287,291 km (0.079 R)
• M83: 64,488,949 km (0.055 R)
• M84: 64,690,906 km (0.028 R)
• M85: 65,703,534 km (0.081 R)
• M86: 67,744,349 km (0.096 R)
• M87: 68,052,371 km (0.088 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: 148 - 13,128 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit