🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.5

Radius: 14.7

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.55 AU - 0.63 AU

Year: 302 Days

Day: 8.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 29,949,841 km

• M1: 191,485 km (0.069 R)
• M2: 290,369 km (0.072 R)
• M3: 461,360 km (0.106 R)
• M4: 600,037 km (0.118 R)
• M5: 701,464 km (0.098 R)
• M6: 800,947 km (0.097 R)
• M7: 896,690 km (0.108 R)
• M8: 996,771 km (0.111 R)
• M9: 1,111,512 km (0.086 R)
• M10: 1,329,626 km (0.119 R)
• M11: 1,465,311 km (0.058 R)
• M12: 1,574,218 km (0.092 R)
• M13: 1,698,385 km (0.058 R)
• M14: 1,821,803 km (0.08 R)
• M15: 2,034,531 km (0.118 R)
• M16: 2,175,003 km (0.087 R)
• M17: 2,273,738 km (0.076 R)
• M18: 2,508,307 km (0.088 R)
• M19: 2,626,340 km (0.115 R)
• M20: 2,727,020 km (0.079 R)
• M21: 2,848,643 km (0.066 R)
• M22: 2,996,894 km (0.107 R)
• M23: 3,234,755 km (0.096 R)
• M24: 3,463,041 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.2

Radius: 12

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.31 AU - 1.33 AU

Year: 1011 Days

Day: 7.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 29,949,841 km

• M1: 224,397 km (0.05 R)
• M2: 392,844 km (0.071 R)
• M3: 483,351 km (0.118 R)
• M4: 566,677 km (0.114 R)
• M5: 744,698 km (0.086 R)
• M6: 983,157 km (0.097 R)
• M7: 1,108,520 km (0.09 R)
• M8: 1,209,948 km (0.029 R)
• M9: 1,314,666 km (0.092 R)
• M10: 1,438,384 km (0.119 R)
• M11: 1,582,446 km (0.055 R)
• M12: 1,773,782 km (0.034 R)
• M13: 1,946,567 km (0.096 R)
• M14: 2,026,154 km (0.066 R)
• M15: 2,134,014 km (0.036 R)
• M16: 2,225,568 km (0.066 R)
• M17: 2,346,443 km (0.061 R)
• M18: 2,546,605 km (0.095 R)
• M19: 2,634,119 km (0.058 R)
• M20: 3,035,490 km (0.051 R)
• M21: 3,138,863 km (0.097 R)
• M22: 3,349,496 km (0.104 R)
• M23: 3,456,459 km (0.044 R)
• M24: 3,532,006 km (0.106 R)
• M25: 4,295,553 km (0.038 R)
• M26: 4,828,421 km (0.11 R)
• M27: 4,986,396 km (0.11 R)
• M28: 5,220,367 km (0.094 R)
• M29: 5,369,965 km (0.12 R)
• M30: 5,533,775 km (0.103 R)
• M31: 5,775,974 km (0.102 R)
• M32: 5,917,942 km (0.109 R)
• M33: 6,034,928 km (0.055 R)
• M34: 6,244,814 km (0.093 R)
• M35: 6,497,185 km (0.069 R)
• M36: 6,739,384 km (0.05 R)
• M37: 6,820,765 km (0.064 R)
• M38: 6,943,585 km (0.119 R)
• M39: 7,053,240 km (0.072 R)
• M40: 7,149,731 km (0.108 R)
• M41: 7,288,408 km (0.089 R)
• M42: 7,372,033 km (0.099 R)
• M43: 7,610,642 km (0.119 R)
• M44: 7,738,099 km (0.116 R)
• M45: 7,994,959 km (0.076 R)
• M46: 8,444,052 km (0.116 R)
• M47: 8,797,402 km (0.119 R)
• M48: 8,886,562 km (0.085 R)
• M49: 9,005,792 km (0.07 R)
• M50: 9,140,579 km (0.093 R)
• M51: 9,472,986 km (0.095 R)
• M52: 9,763,355 km (0.099 R)
• M53: 10,509,849 km (0.117 R)
• M54: 10,651,967 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.5

Radius: 8.4

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.45 AU - 2.39 AU

Year: 1774 Days

Day: 11.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 29,949,841 km

• M1: 105,317 km (0.115 R)
• M2: 222,901 km (0.104 R)
• M3: 286,779 km (0.063 R)
• M4: 398,379 km (0.068 R)
• M5: 482,004 km (0.111 R)
• M6: 567,275 km (0.109 R)
• M7: 669,002 km (0.115 R)
• M8: 748,289 km (0.104 R)
• M9: 1,038,359 km (0.108 R)
• M10: 1,131,558 km (0.092 R)
• M11: 1,220,569 km (0.057 R)
• M12: 1,384,079 km (0.108 R)
• M13: 1,646,923 km (0.056 R)
• M14: 2,125,187 km (0.087 R)
• M15: 2,288,249 km (0.098 R)
• M16: 2,437,548 km (0.076 R)
• M17: 2,544,959 km (0.096 R)
• M18: 2,672,267 km (0.042 R)
• M19: 2,736,743 km (0.113 R)
• M20: 2,839,218 km (0.052 R)
• M21: 2,914,466 km (0.103 R)
• M22: 2,971,313 km (0.106 R)
• M23: 3,028,609 km (0.085 R)
• M24: 3,173,420 km (0.108 R)
• M25: 3,271,257 km (0.112 R)
• M26: 3,520,187 km (0.068 R)
• M27: 3,662,455 km (0.105 R)
• M28: 3,858,428 km (0.119 R)
• M29: 3,973,469 km (0.068 R)
• M30: 4,228,533 km (0.067 R)
• M31: 4,521,895 km (0.1 R)
• M32: 4,588,017 km (0.098 R)
• M33: 4,855,648 km (0.109 R)
• M34: 4,912,046 km (0.111 R)
• M35: 5,025,591 km (0.101 R)
• M36: 5,255,074 km (0.109 R)
• M37: 5,535,121 km (0.111 R)
• M38: 5,928,264 km (0.066 R)
• M39: 6,037,022 km (0.046 R)
• M40: 6,122,143 km (0.083 R)
• M41: 6,281,166 km (0.027 R)
• M42: 6,392,018 km (0.055 R)
• M43: 7,109,639 km (0.086 R)
• M44: 7,238,143 km (0.049 R)
• M45: 7,341,516 km (0.071 R)
• M46: 7,445,336 km (0.045 R)
• M47: 7,667,788 km (0.089 R)
• M48: 7,786,420 km (0.111 R)
• M49: 7,998,849 km (0.066 R)
• M50: 8,415,778 km (0.073 R)
• M51: 8,538,149 km (0.066 R)
• M52: 8,606,366 km (0.098 R)
• M53: 8,964,204 km (0.119 R)
• M54: 9,019,704 km (0.113 R)
• M55: 9,131,155 km (0.11 R)
• M56: 9,510,236 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.3

Radius: 13.4

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.62 AU - 2.56 AU

Year: 2015 Days

Day: 5.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 29,949,841 km

• M1: 188,942 km (0.114 R)
• M2: 350,508 km (0.036 R)
• M3: 557,551 km (0.042 R)
• M4: 751,879 km (0.115 R)
• M5: 845,228 km (0.051 R)
• M6: 1,112,559 km (0.118 R)
• M7: 1,211,444 km (0.093 R)
• M8: 1,323,941 km (0.107 R)
• M9: 1,408,015 km (0.093 R)
• M10: 1,752,090 km (0.118 R)
• M11: 1,952,402 km (0.109 R)
• M12: 2,324,601 km (0.056 R)
• M13: 2,493,049 km (0.041 R)
• M14: 2,814,834 km (0.11 R)
• M15: 3,036,986 km (0.099 R)
• M16: 3,136,020 km (0.046 R)
• M17: 3,528,415 km (0.112 R)
• M18: 3,983,043 km (0.07 R)
• M19: 4,076,243 km (0.088 R)
• M20: 4,185,898 km (0.073 R)
• M21: 4,472,677 km (0.075 R)
• M22: 4,700,066 km (0.104 R)
• M23: 4,898,133 km (0.106 R)
• M24: 5,082,139 km (0.103 R)
• M25: 5,234,429 km (0.073 R)
• M26: 5,439,827 km (0.106 R)
• M27: 5,526,295 km (0.064 R)
• M28: 5,858,701 km (0.073 R)
• M29: 6,234,042 km (0.116 R)
• M30: 6,342,651 km (0.071 R)
• M31: 6,691,064 km (0.12 R)
• M32: 6,839,615 km (0.111 R)
• M33: 7,140,007 km (0.114 R)
• M34: 7,234,852 km (0.12 R)
• M35: 8,027,871 km (0.104 R)
• M36: 8,424,903 km (0.084 R)
• M37: 8,585,571 km (0.112 R)
• M38: 8,767,482 km (0.05 R)
• M39: 8,971,085 km (0.033 R)
• M40: 9,155,689 km (0.114 R)
• M41: 9,258,911 km (0.063 R)
• M42: 9,570,524 km (0.085 R)
• M43: 9,885,726 km (0.09 R)
• M44: 10,830,138 km (0.096 R)
• M45: 10,961,186 km (0.103 R)
• M46: 11,158,655 km (0.104 R)
• M47: 11,468,322 km (0.088 R)
• M48: 12,368,602 km (0.071 R)
• M49: 12,528,373 km (0.081 R)
• M50: 13,268,134 km (0.09 R)
• M51: 13,549,229 km (0.094 R)
• M52: 13,761,359 km (0.072 R)
• M53: 14,022,108 km (0.109 R)
• M54: 14,284,502 km (0.109 R)
• M55: 14,693,204 km (0.047 R)
• M56: 14,862,698 km (0.057 R)
• M57: 15,252,401 km (0.116 R)
• M58: 16,066,811 km (0.085 R)
• M59: 16,316,490 km (0.108 R)
• M60: 16,567,366 km (0.102 R)
• M61: 16,946,148 km (0.087 R)
• M62: 17,123,870 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.7

Radius: 11.6

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.79 AU - 2.91 AU

Year: 2402 Days

Day: 9.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 29,949,841 km

• M1: 151,393 km (0.081 R)
• M2: 405,560 km (0.111 R)
• M3: 560,394 km (0.107 R)
• M4: 646,412 km (0.051 R)
• M5: 775,366 km (0.12 R)
• M6: 975,977 km (0.097 R)
• M7: 1,061,247 km (0.117 R)
• M8: 1,368,671 km (0.094 R)
• M9: 1,502,262 km (0.098 R)
• M10: 1,589,477 km (0.063 R)
• M11: 1,929,364 km (0.097 R)
• M12: 2,481,978 km (0.039 R)
• M13: 2,722,681 km (0.087 R)
• M14: 3,082,015 km (0.084 R)
• M15: 3,407,092 km (0.115 R)
• M16: 4,232,124 km (0.113 R)
• M17: 4,375,588 km (0.061 R)
• M18: 4,520,698 km (0.067 R)
• M19: 5,040,999 km (0.079 R)
• M20: 5,212,439 km (0.115 R)
• M21: 5,541,404 km (0.047 R)
• M22: 5,619,794 km (0.076 R)
• M23: 5,797,516 km (0.06 R)
• M24: 6,548,048 km (0.034 R)
• M25: 6,651,869 km (0.069 R)
• M26: 6,735,345 km (0.109 R)
• M27: 6,966,474 km (0.116 R)
• M28: 8,139,620 km (0.077 R)
• M29: 8,296,100 km (0.092 R)
• M30: 8,498,805 km (0.074 R)
• M31: 8,634,939 km (0.107 R)
• M32: 8,817,598 km (0.068 R)
• M33: 8,955,377 km (0.112 R)
• M34: 9,560,650 km (0.064 R)
• M35: 9,963,667 km (0.105 R)
• M36: 10,299,813 km (0.109 R)
• M37: 10,933,959 km (0.103 R)
• M38: 11,007,860 km (0.083 R)
• M39: 11,106,894 km (0.112 R)
• M40: 11,380,359 km (0.05 R)
• M41: 11,656,217 km (0.103 R)
• M42: 11,832,743 km (0.073 R)
• M43: 11,959,602 km (0.108 R)
• M44: 12,112,192 km (0.117 R)
• M45: 12,445,196 km (0.118 R)
• M46: 12,600,030 km (0.1 R)
• M47: 13,172,841 km (0.088 R)
• M48: 13,435,983 km (0.116 R)
• M49: 13,700,921 km (0.08 R)
• M50: 14,047,988 km (0.094 R)
• M51: 15,216,347 km (0.109 R)
• M52: 15,631,332 km (0.097 R)
• M53: 15,910,033 km (0.096 R)
• M54: 16,500,795 km (0.059 R)
• M55: 16,614,040 km (0.098 R)
• M56: 17,356,943 km (0.059 R)
• M57: 17,703,562 km (0.07 R)
• M58: 17,877,694 km (0.03 R)
• M59: 18,052,424 km (0.081 R)
• M60: 18,169,110 km (0.096 R)
• M61: 18,668,318 km (0.117 R)
• M62: 18,786,501 km (0.098 R)
• M63: 19,112,624 km (0.06 R)
• M64: 19,650,279 km (0.092 R)
• M65: 19,770,406 km (0.111 R)
• M66: 19,920,901 km (0.105 R)
• M67: 20,132,283 km (0.101 R)
• M68: 20,223,239 km (0.076 R)
• M69: 20,344,562 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853

Radius: 11.4

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.31 AU - 3.37 AU

Year: 4071 Days

Day: 9.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 29,949,841 km

• M1: 148,850 km (0.074 R)
• M2: 384,317 km (0.058 R)
• M3: 525,238 km (0.063 R)
• M4: 619,634 km (0.096 R)
• M5: 732,282 km (0.079 R)
• M6: 803,490 km (0.085 R)
• M7: 1,086,978 km (0.051 R)
• M8: 1,212,341 km (0.069 R)
• M9: 1,493,286 km (0.088 R)
• M10: 1,746,406 km (0.087 R)
• M11: 1,828,385 km (0.103 R)
• M12: 1,911,711 km (0.085 R)
• M13: 1,996,384 km (0.107 R)
• M14: 2,329,987 km (0.089 R)
• M15: 2,587,146 km (0.032 R)
• M16: 3,538,438 km (0.039 R)
• M17: 4,117,532 km (0.034 R)
• M18: 4,250,375 km (0.048 R)
• M19: 4,520,249 km (0.119 R)
• M20: 4,726,395 km (0.095 R)
• M21: 5,053,117 km (0.054 R)
• M22: 5,291,127 km (0.118 R)
• M23: 5,852,568 km (0.096 R)
• M24: 6,639,453 km (0.11 R)
• M25: 6,821,663 km (0.082 R)
• M26: 7,005,668 km (0.065 R)
• M27: 7,191,319 km (0.081 R)
• M28: 7,405,394 km (0.096 R)
• M29: 7,676,166 km (0.081 R)
• M30: 7,922,554 km (0.085 R)
• M31: 8,423,258 km (0.108 R)
• M32: 8,564,179 km (0.057 R)
• M33: 8,819,842 km (0.03 R)
• M34: 9,484,505 km (0.105 R)
• M35: 10,075,716 km (0.051 R)
• M36: 10,225,463 km (0.106 R)
• M37: 10,345,740 km (0.082 R)
• M38: 10,587,789 km (0.077 R)
• M39: 11,200,841 km (0.095 R)
• M40: 11,543,121 km (0.114 R)
• M41: 11,668,335 km (0.08 R)
• M42: 12,429,638 km (0.078 R)
• M43: 12,590,157 km (0.091 R)
• M44: 13,076,200 km (0.109 R)
• M45: 14,100,198 km (0.08 R)
• M46: 14,435,895 km (0.12 R)
• M47: 15,047,003 km (0.081 R)
• M48: 15,528,259 km (0.068 R)
• M49: 16,259,493 km (0.094 R)
• M50: 17,108,910 km (0.028 R)
• M51: 18,154,450 km (0.085 R)
• M52: 18,336,809 km (0.1 R)
• M53: 18,446,614 km (0.106 R)
• M54: 18,519,917 km (0.078 R)
• M55: 18,740,275 km (0.07 R)
• M56: 18,924,579 km (0.101 R)
• M57: 19,967,875 km (0.098 R)
• M58: 20,991,573 km (0.096 R)
• M59: 21,259,802 km (0.045 R)
• M60: 21,413,589 km (0.086 R)
• M61: 21,954,684 km (0.096 R)
• M62: 22,226,952 km (0.108 R)
• M63: 23,565,255 km (0.054 R)
• M64: 23,644,841 km (0.096 R)
• M65: 24,445,040 km (0.057 R)
• M66: 25,010,520 km (0.111 R)
• M67: 25,907,958 km (0.034 R)
• M68: 26,072,216 km (0.095 R)
• M69: 26,236,923 km (0.025 R)
• M70: 27,148,573 km (0.119 R)
• M71: 27,608,287 km (0.118 R)
• M72: 27,818,173 km (0.095 R)
• M73: 28,028,507 km (0.102 R)
• M74: 28,197,104 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.8

Radius: 10.3

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.92 AU - 4.68 AU

Year: 4940 Days

Day: 13.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 29,949,841 km

• M1: 132,993 km (0.103 R)
• M2: 502,350 km (0.12 R)
• M3: 668,553 km (0.092 R)
• M4: 867,069 km (0.088 R)
• M5: 1,071,121 km (0.103 R)
• M6: 1,493,735 km (0.102 R)
• M7: 1,574,518 km (0.115 R)
• M8: 1,656,946 km (0.09 R)
• M9: 1,757,625 km (0.077 R)
• M10: 2,072,529 km (0.082 R)
• M11: 2,236,787 km (0.091 R)
• M12: 2,405,534 km (0.074 R)
• M13: 2,735,696 km (0.094 R)
• M14: 3,163,546 km (0.075 R)
• M15: 3,590,648 km (0.093 R)
• M16: 4,058,889 km (0.075 R)
• M17: 4,173,332 km (0.082 R)
• M18: 4,617,787 km (0.107 R)
• M19: 4,833,657 km (0.094 R)
• M20: 5,475,880 km (0.099 R)
• M21: 5,551,727 km (0.103 R)
• M22: 5,807,090 km (0.085 R)
• M23: 5,988,253 km (0.094 R)
• M24: 6,356,114 km (0.1 R)
• M25: 6,596,518 km (0.091 R)
• M26: 6,704,229 km (0.116 R)
• M27: 7,363,357 km (0.071 R)
• M28: 7,587,754 km (0.047 R)
• M29: 7,814,394 km (0.109 R)
• M30: 8,043,279 km (0.034 R)
• M31: 8,129,597 km (0.109 R)
• M32: 8,361,474 km (0.038 R)
• M33: 9,040,499 km (0.078 R)
• M34: 9,675,841 km (0.107 R)
• M35: 9,829,328 km (0.028 R)
• M36: 10,045,497 km (0.107 R)
• M37: 10,325,694 km (0.117 R)
• M38: 10,482,472 km (0.064 R)
• M39: 11,246,170 km (0.116 R)
• M40: 11,667,288 km (0.114 R)
• M41: 11,765,125 km (0.115 R)
• M42: 11,994,757 km (0.113 R)
• M43: 12,093,641 km (0.066 R)
• M44: 12,225,886 km (0.027 R)
• M45: 12,793,161 km (0.078 R)
• M46: 12,894,140 km (0.116 R)
• M47: 13,334,855 km (0.081 R)
• M48: 13,677,285 km (0.09 R)
• M49: 13,884,178 km (0.115 R)
• M50: 13,987,999 km (0.085 R)
• M51: 14,266,102 km (0.063 R)
• M52: 14,370,820 km (0.105 R)
• M53: 15,004,816 km (0.076 R)
• M54: 15,075,875 km (0.052 R)
• M55: 15,182,688 km (0.113 R)
• M56: 15,253,896 km (0.109 R)
• M57: 15,720,043 km (0.062 R)
• M58: 16,045,419 km (0.028 R)
• M59: 16,190,828 km (0.054 R)
• M60: 16,373,188 km (0.061 R)
• M61: 16,592,797 km (0.083 R)
• M62: 16,776,653 km (0.117 R)
• M63: 18,006,797 km (0.108 R)
• M64: 18,461,424 km (0.049 R)
• M65: 19,536,584 km (0.102 R)
• M66: 19,653,121 km (0.099 R)
• M67: 20,592,596 km (0.081 R)
• M68: 20,711,077 km (0.097 R)
• M69: 20,988,432 km (0.097 R)
• M70: 21,227,190 km (0.104 R)
• M71: 21,586,973 km (0.118 R)
• M72: 22,231,440 km (0.097 R)
• M73: 22,800,660 km (0.03 R)
• M74: 23,415,807 km (0.033 R)
• M75: 23,870,435 km (0.071 R)
• M76: 23,953,312 km (0.065 R)
• M77: 24,327,905 km (0.074 R)
• M78: 24,453,118 km (0.099 R)
• M79: 24,620,518 km (0.101 R)
• M80: 24,704,443 km (0.119 R)
• M81: 25,845,426 km (0.104 R)
• M82: 26,186,808 km (0.083 R)
• M83: 26,357,948 km (0.11 R)
• M84: 27,306,548 km (0.109 R)
• M85: 27,872,327 km (0.071 R)
• M86: 29,414,681 km (0.085 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 17,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit