🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.54 AU - 0.64 AU

Year: 168 Days

Day: 34.9 Hours

Environment

Temp: 141 °C

Axial Tilt: 21.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 104,800,015 km

• M1: 173,982 km (0.068 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.74 AU - 2.04 AU

Year: 964 Days

Day: 26.3 Hours

Environment

Temp: -56 °C

Axial Tilt: 48.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.19 AU - 2.27 AU

Year: 1235 Days

Day: 46.1 Hours

Environment

Temp: -88 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 104,800,015 km

• M1: 1,463,965 km (0.119 R)

Asteroid Belt

Center: 3.64 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.9

Radius: 10.1

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.59 AU - 5.49 AU

Year: 4196 Days

Day: 8.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 104,800,015 km

• M1: 131,347 km (0.1 R)
• M2: 221,554 km (0.083 R)
• M3: 295,157 km (0.11 R)
• M4: 389,254 km (0.12 R)
• M5: 540,497 km (0.034 R)
• M6: 743,801 km (0.053 R)
• M7: 806,632 km (0.034 R)
• M8: 1,030,131 km (0.054 R)
• M9: 1,125,275 km (0.09 R)
• M10: 1,363,585 km (0.096 R)
• M11: 1,604,587 km (0.105 R)
• M12: 1,758,673 km (0.102 R)
• M13: 1,976,936 km (0.098 R)
• M14: 2,112,172 km (0.112 R)
• M15: 2,234,992 km (0.065 R)
• M16: 2,650,874 km (0.071 R)
• M17: 2,716,997 km (0.069 R)
• M18: 3,056,284 km (0.109 R)
• M19: 3,481,292 km (0.081 R)
• M20: 3,887,450 km (0.038 R)
• M21: 4,057,992 km (0.086 R)
• M22: 4,367,360 km (0.043 R)
• M23: 4,724,600 km (0.072 R)
• M24: 4,866,120 km (0.101 R)
• M25: 4,967,996 km (0.12 R)
• M26: 5,091,264 km (0.063 R)
• M27: 5,340,943 km (0.114 R)
• M28: 5,830,727 km (0.105 R)
• M29: 6,603,549 km (0.106 R)
• M30: 7,128,937 km (0.04 R)
• M31: 7,268,213 km (0.103 R)
• M32: 7,408,386 km (0.056 R)
• M33: 7,667,788 km (0.099 R)
• M34: 7,882,312 km (0.086 R)
• M35: 8,317,193 km (0.088 R)
• M36: 8,439,265 km (0.091 R)
• M37: 8,735,020 km (0.057 R)
• M38: 9,311,420 km (0.079 R)
• M39: 9,387,566 km (0.084 R)
• M40: 9,951,849 km (0.116 R)
• M41: 10,029,640 km (0.069 R)
• M42: 10,395,556 km (0.089 R)
• M43: 11,059,621 km (0.088 R)
• M44: 11,819,877 km (0.07 R)
• M45: 12,401,065 km (0.065 R)
• M46: 12,652,988 km (0.08 R)
• M47: 13,161,920 km (0.054 R)
• M48: 13,361,633 km (0.108 R)
• M49: 13,677,584 km (0.07 R)
• M50: 13,937,884 km (0.058 R)
• M51: 14,316,815 km (0.109 R)
• M52: 14,404,779 km (0.118 R)
• M53: 14,876,760 km (0.11 R)
• M54: 15,443,886 km (0.078 R)
• M55: 15,805,763 km (0.115 R)
• M56: 15,987,824 km (0.042 R)
• M57: 16,537,895 km (0.07 R)
• M58: 17,001,050 km (0.116 R)
• M59: 17,094,100 km (0.119 R)
• M60: 17,750,984 km (0.076 R)
• M61: 18,003,356 km (0.115 R)
• M62: 18,256,924 km (0.081 R)
• M63: 18,735,637 km (0.097 R)
• M64: 18,799,815 km (0.099 R)
• M65: 19,218,390 km (0.086 R)
• M66: 20,229,222 km (0.072 R)
• M67: 20,824,024 km (0.104 R)
• M68: 21,726,996 km (0.111 R)
• M69: 21,828,125 km (0.117 R)
• M70: 21,929,402 km (0.094 R)
• M71: 22,268,092 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.6

Radius: 10.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.96 AU - 9.12 AU

Year: 8455 Days

Day: 6.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 104,800,015 km

• M1: 137,032 km (0.044 R)
• M2: 773,122 km (0.079 R)
• M3: 948,600 km (0.064 R)
• M4: 1,391,410 km (0.093 R)
• M5: 1,498,073 km (0.098 R)
• M6: 1,626,129 km (0.088 R)
• M7: 2,342,254 km (0.115 R)
• M8: 2,823,510 km (0.078 R)
• M9: 3,263,926 km (0.071 R)
• M10: 3,504,480 km (0.066 R)
• M11: 3,701,051 km (0.12 R)
• M12: 3,926,795 km (0.119 R)
• M13: 4,603,874 km (0.093 R)
• M14: 4,983,404 km (0.056 R)
• M15: 5,600,495 km (0.107 R)
• M16: 5,888,920 km (0.05 R)
• M17: 6,123,340 km (0.08 R)
• M18: 6,241,672 km (0.078 R)
• M19: 6,631,374 km (0.057 R)
• M20: 7,029,155 km (0.072 R)
• M21: 7,624,555 km (0.081 R)
• M22: 8,106,110 km (0.117 R)
• M23: 8,531,417 km (0.112 R)
• M24: 9,166,011 km (0.108 R)
• M25: 9,815,864 km (0.108 R)
• M26: 10,093,967 km (0.057 R)
• M27: 10,516,132 km (0.074 R)
• M28: 11,743,134 km (0.082 R)
• M29: 11,927,438 km (0.095 R)
• M30: 13,244,049 km (0.116 R)
• M31: 13,397,387 km (0.043 R)
• M32: 13,900,036 km (0.117 R)
• M33: 14,173,201 km (0.027 R)
• M34: 14,487,656 km (0.056 R)
• M35: 14,685,425 km (0.088 R)
• M36: 16,298,987 km (0.099 R)
• M37: 16,545,824 km (0.084 R)
• M38: 16,628,402 km (0.087 R)
• M39: 16,794,007 km (0.091 R)
• M40: 17,883,378 km (0.108 R)
• M41: 18,010,536 km (0.116 R)
• M42: 18,351,171 km (0.085 R)
• M43: 18,650,965 km (0.109 R)
• M44: 18,736,984 km (0.109 R)
• M45: 19,038,872 km (0.088 R)
• M46: 19,125,340 km (0.047 R)
• M47: 19,866,298 km (0.108 R)
• M48: 20,527,969 km (0.115 R)
• M49: 20,883,713 km (0.053 R)
• M50: 21,646,662 km (0.112 R)
• M51: 21,736,870 km (0.032 R)
• M52: 21,827,377 km (0.092 R)
• M53: 22,099,645 km (0.109 R)
• M54: 22,876,955 km (0.118 R)
• M55: 23,015,034 km (0.071 R)
• M56: 23,338,315 km (0.054 R)
• M57: 23,570,192 km (0.107 R)
• M58: 23,896,165 km (0.098 R)
• M59: 24,552,451 km (0.117 R)
• M60: 24,693,821 km (0.08 R)
• M61: 25,739,062 km (0.079 R)
• M62: 25,930,697 km (0.031 R)
• M63: 26,315,313 km (0.066 R)
• M64: 26,653,404 km (0.108 R)
• M65: 26,895,752 km (0.065 R)
• M66: 27,285,156 km (0.071 R)
• M67: 27,382,843 km (0.099 R)
• M68: 27,627,286 km (0.032 R)
• M69: 27,774,490 km (0.083 R)
• M70: 28,020,130 km (0.086 R)
• M71: 28,662,503 km (0.041 R)
• M72: 28,861,169 km (0.097 R)
• M73: 29,710,287 km (0.086 R)
• M74: 31,075,966 km (0.113 R)
• M75: 31,484,517 km (0.033 R)
• M76: 31,946,176 km (0.076 R)
• M77: 32,100,711 km (0.088 R)
• M78: 32,410,229 km (0.083 R)
• M79: 32,513,601 km (0.094 R)
• M80: 32,720,794 km (0.034 R)
• M81: 33,032,407 km (0.105 R)
• M82: 33,501,546 km (0.12 R)
• M83: 33,920,420 km (0.085 R)
• M84: 34,763,553 km (0.091 R)
• M85: 35,560,162 km (0.118 R)
• M86: 35,720,082 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.7

Radius: 11.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 6.29 AU - 9.97 AU

Year: 8597 Days

Day: 10.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 104,800,015 km

• M1: 146,307 km (0.095 R)
• M2: 333,603 km (0.108 R)
• M3: 540,198 km (0.094 R)
• M4: 1,164,171 km (0.067 R)
• M5: 1,262,008 km (0.096 R)
• M6: 1,348,326 km (0.044 R)
• M7: 1,542,354 km (0.046 R)
• M8: 2,059,215 km (0.082 R)
• M9: 2,372,921 km (0.076 R)
• M10: 2,572,335 km (0.046 R)
• M11: 3,303,570 km (0.082 R)
• M12: 3,404,399 km (0.117 R)
• M13: 3,713,318 km (0.091 R)
• M14: 3,924,401 km (0.057 R)
• M15: 4,226,738 km (0.114 R)
• M16: 4,649,053 km (0.105 R)
• M17: 5,800,358 km (0.12 R)
• M18: 6,095,365 km (0.118 R)
• M19: 7,192,516 km (0.096 R)
• M20: 7,562,920 km (0.115 R)
• M21: 8,102,969 km (0.105 R)
• M22: 8,488,333 km (0.117 R)
• M23: 9,220,166 km (0.102 R)
• M24: 9,420,627 km (0.083 R)
• M25: 9,564,689 km (0.119 R)
• M26: 9,709,500 km (0.108 R)
• M27: 10,683,682 km (0.116 R)
• M28: 10,803,958 km (0.113 R)
• M29: 11,319,772 km (0.097 R)
• M30: 12,155,725 km (0.117 R)
• M31: 12,787,776 km (0.094 R)
• M32: 12,883,518 km (0.115 R)
• M33: 13,236,569 km (0.039 R)
• M34: 13,398,135 km (0.072 R)
• M35: 13,690,599 km (0.072 R)
• M36: 14,680,637 km (0.079 R)
• M37: 14,948,567 km (0.084 R)
• M38: 15,557,431 km (0.097 R)
• M39: 15,659,606 km (0.108 R)
• M40: 16,174,223 km (0.089 R)
• M41: 16,659,518 km (0.053 R)
• M42: 17,044,284 km (0.09 R)
• M43: 17,858,246 km (0.096 R)
• M44: 18,144,277 km (0.097 R)
• M45: 18,975,144 km (0.1 R)
• M46: 19,450,266 km (0.082 R)
• M47: 19,634,122 km (0.086 R)
• M48: 20,040,580 km (0.072 R)
• M49: 21,012,068 km (0.064 R)
• M50: 22,037,262 km (0.082 R)
• M51: 22,691,155 km (0.114 R)
• M52: 22,923,480 km (0.105 R)
• M53: 23,195,449 km (0.092 R)
• M54: 23,978,444 km (0.074 R)
• M55: 25,089,358 km (0.097 R)
• M56: 25,610,856 km (0.115 R)
• M57: 27,361,151 km (0.095 R)
• M58: 27,484,570 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.7

Radius: 3

Gravity: 53.74 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 11.42 AU - 17.3 AU

Year: 20181 Days

Day: 23.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 104,800,015 km

• M1: 373,695 km (0.076 R)
• M2: 502,649 km (0.067 R)
• M3: 623,674 km (0.05 R)
• M4: 964,457 km (0.089 R)
• M5: 1,245,402 km (0.117 R)
• M6: 1,272,031 km (0.111 R)
• M7: 1,578,856 km (0.104 R)
• M8: 1,637,049 km (0.08 R)
• M9: 2,224,072 km (0.114 R)
• M10: 2,455,350 km (0.114 R)
• M11: 2,659,551 km (0.104 R)
• M12: 2,833,982 km (0.112 R)
• M13: 3,304,467 km (0.095 R)
• M14: 3,644,354 km (0.069 R)
• M15: 3,995,161 km (0.073 R)
• M16: 4,561,987 km (0.099 R)
• M17: 5,502,210 km (0.086 R)
• M18: 6,453,353 km (0.083 R)
• M19: 7,600,918 km (0.086 R)
• M20: 7,798,238 km (0.057 R)
• M21: 7,897,571 km (0.106 R)
• M22: 8,451,083 km (0.066 R)
• M23: 8,758,357 km (0.094 R)
• M24: 8,861,430 km (0.114 R)
• M25: 9,436,334 km (0.117 R)
• M26: 11,625,699 km (0.104 R)
• M27: 12,427,394 km (0.083 R)
• M28: 12,952,034 km (0.083 R)
• M29: 13,187,651 km (0.114 R)
• M30: 15,245,818 km (0.074 R)
• M31: 15,932,772 km (0.105 R)
• M32: 16,629,748 km (0.078 R)
• M33: 17,207,495 km (0.068 R)
• M34: 18,514,532 km (0.089 R)
• M35: 18,912,761 km (0.077 R)
• M36: 19,785,515 km (0.072 R)
• M37: 20,192,571 km (0.062 R)
• M38: 20,877,280 km (0.103 R)
• M39: 20,946,245 km (0.102 R)
• M40: 21,569,619 km (0.057 R)
• M41: 22,551,580 km (0.085 R)
• M42: 23,476,244 km (0.096 R)
• M43: 25,069,013 km (0.116 R)
• M44: 25,142,316 km (0.041 R)
• M45: 25,804,586 km (0.056 R)
• M46: 25,952,538 km (0.086 R)
• M47: 26,921,034 km (0.109 R)
• M48: 26,995,983 km (0.092 R)
• M49: 27,901,200 km (0.057 R)
• M50: 28,510,213 km (0.11 R)
• M51: 30,051,968 km (0.1 R)
• M52: 30,129,759 km (0.044 R)
• M53: 30,519,611 km (0.083 R)
• M54: 32,894,328 km (0.106 R)
• M55: 33,295,848 km (0.119 R)
• M56: 34,103,677 km (0.116 R)
• M57: 34,265,991 km (0.038 R)
• M58: 34,999,768 km (0.043 R)
• M59: 36,316,977 km (0.065 R)
• M60: 36,648,786 km (0.094 R)
• M61: 36,814,989 km (0.108 R)
• M62: 37,650,194 km (0.11 R)
• M63: 37,734,118 km (0.119 R)
• M64: 39,680,087 km (0.106 R)
• M65: 43,316,811 km (0.072 R)
• M66: 44,552,340 km (0.109 R)
• M67: 45,174,518 km (0.039 R)
• M68: 45,263,678 km (0.042 R)
• M69: 45,352,838 km (0.057 R)
• M70: 46,068,365 km (0.103 R)
• M71: 47,419,982 km (0.09 R)
• M72: 48,237,085 km (0.111 R)
• M73: 50,254,263 km (0.051 R)
• M74: 50,439,016 km (0.112 R)
• M75: 50,531,468 km (0.069 R)
• M76: 50,716,521 km (0.035 R)
• M77: 52,861,006 km (0.113 R)
• M78: 53,048,901 km (0.109 R)
• M79: 53,519,536 km (0.112 R)
• M80: 54,370,149 km (0.077 R)
• M81: 55,415,988 km (0.092 R)
• M82: 57,045,109 km (0.073 R)
• M83: 57,430,772 km (0.084 R)
• M84: 58,689,937 km (0.112 R)
• M85: 58,981,803 km (0.041 R)
• M86: 59,469,342 km (0.059 R)
• M87: 60,645,032 km (0.118 R)
• M88: 60,743,318 km (0.052 R)
• M89: 60,841,604 km (0.12 R)
• M90: 62,521,887 km (0.081 R)
• M91: 64,017,118 km (0.084 R)
• M92: 64,417,741 km (0.11 R)
• M93: 66,738,004 km (0.072 R)
• M94: 66,839,431 km (0.091 R)
• M95: 67,449,491 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 830.2

Radius: 8

Gravity: 12.97 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 15.95 AU - 20.93 AU

Year: 29366 Days

Day: 20.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 104,800,015 km

• M1: 160,818 km (0.094 R)
• M2: 331,509 km (0.084 R)
• M3: 968,646 km (0.097 R)
• M4: 1,166,265 km (0.059 R)
• M5: 1,834,519 km (0.057 R)
• M6: 2,122,195 km (0.108 R)
• M7: 2,380,252 km (0.06 R)
• M8: 2,557,974 km (0.051 R)
• M9: 2,740,035 km (0.105 R)
• M10: 2,926,434 km (0.11 R)
• M11: 4,076,542 km (0.089 R)
• M12: 5,063,738 km (0.113 R)
• M13: 5,701,923 km (0.1 R)
• M14: 5,880,393 km (0.098 R)
• M15: 5,940,382 km (0.12 R)
• M16: 7,698,755 km (0.107 R)
• M17: 9,324,136 km (0.102 R)
• M18: 9,675,691 km (0.041 R)
• M19: 12,486,785 km (0.045 R)
• M20: 12,796,452 km (0.098 R)
• M21: 13,581,691 km (0.098 R)
• M22: 15,363,552 km (0.106 R)
• M23: 15,862,161 km (0.098 R)
• M24: 17,217,518 km (0.065 R)
• M25: 17,475,874 km (0.098 R)
• M26: 18,346,084 km (0.108 R)
• M27: 19,677,655 km (0.114 R)
• M28: 19,767,414 km (0.118 R)
• M29: 19,947,679 km (0.104 R)
• M30: 20,491,468 km (0.071 R)
• M31: 21,224,048 km (0.118 R)
• M32: 22,620,694 km (0.111 R)
• M33: 22,903,584 km (0.064 R)
• M34: 23,472,804 km (0.086 R)
• M35: 24,916,423 km (0.058 R)
• M36: 25,111,050 km (0.071 R)
• M37: 26,388,466 km (0.052 R)
• M38: 26,686,315 km (0.113 R)
• M39: 28,598,027 km (0.109 R)
• M40: 31,916,257 km (0.078 R)
• M41: 32,021,873 km (0.117 R)
• M42: 32,339,619 km (0.107 R)
• M43: 32,445,684 km (0.112 R)
• M44: 34,483,656 km (0.092 R)
• M45: 36,121,752 km (0.118 R)
• M46: 36,894,874 km (0.117 R)
• M47: 37,561,781 km (0.101 R)
• M48: 44,446,874 km (0.046 R)
• M49: 45,037,785 km (0.076 R)
• M50: 45,512,609 km (0.095 R)
• M51: 46,347,216 km (0.088 R)
• M52: 46,586,722 km (0.079 R)
• M53: 46,826,527 km (0.11 R)
• M54: 49,858,876 km (0.057 R)
• M55: 51,708,504 km (0.086 R)
• M56: 53,455,059 km (0.084 R)
• M57: 54,083,520 km (0.105 R)
• M58: 55,728,947 km (0.064 R)
• M59: 57,133,970 km (0.107 R)
• M60: 57,519,185 km (0.097 R)
• M61: 58,421,409 km (0.042 R)
• M62: 59,328,272 km (0.07 R)
• M63: 60,762,766 km (0.065 R)
• M64: 62,737,308 km (0.089 R)
• M65: 63,134,640 km (0.094 R)
• M66: 63,665,862 km (0.084 R)
• M67: 63,931,996 km (0.064 R)
• M68: 66,074,537 km (0.092 R)
• M69: 67,696,926 km (0.119 R)
• M70: 67,968,446 km (0.091 R)
• M71: 68,104,431 km (0.101 R)
• M72: 72,086,576 km (0.082 R)
• M73: 72,364,080 km (0.085 R)
• M74: 73,059,112 km (0.114 R)
• M75: 74,315,884 km (0.034 R)
• M76: 75,720,608 km (0.101 R)
• M77: 77,275,827 km (0.058 R)
• M78: 80,417,831 km (0.053 R)
• M79: 83,601,424 km (0.104 R)
• M80: 84,915,641 km (0.069 R)
• M81: 85,795,576 km (0.114 R)
• M82: 86,236,740 km (0.068 R)
• M83: 86,678,502 km (0.074 R)
• M84: 87,268,815 km (0.088 R)
• M85: 88,601,882 km (0.112 R)
• M86: 89,345,384 km (0.078 R)
• M87: 90,688,922 km (0.111 R)
• M88: 94,304,254 km (0.103 R)
• M89: 94,455,946 km (0.118 R)
• M90: 97,506,097 km (0.091 R)
• M91: 98,427,321 km (0.101 R)
• M92: 98,735,193 km (0.088 R)
• M93: 99,969,375 km (0.11 R)
• M94: 101,363,927 km (0.095 R)
• M95: 102,921,091 km (0.101 R)
• M96: 103,389,781 km (0.108 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: 414 - 16,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit