🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136

Radius: 13.8

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.8 AU - 0.88 AU

Year: 505 Days

Day: 11.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 158.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 41,888,655 km

• M1: 173,384 km (0.085 R)
• M2: 271,819 km (0.094 R)
• M3: 379,380 km (0.094 R)
• M4: 480,957 km (0.104 R)
• M5: 590,014 km (0.098 R)
• M6: 680,670 km (0.117 R)
• M7: 822,938 km (0.117 R)
• M8: 927,208 km (0.091 R)
• M9: 1,043,296 km (0.069 R)
• M10: 1,171,950 km (0.111 R)
• M11: 1,262,157 km (0.119 R)
• M12: 1,358,648 km (0.083 R)
• M13: 1,453,942 km (0.1 R)
• M14: 1,559,707 km (0.084 R)
• M15: 1,660,088 km (0.098 R)
• M16: 1,779,317 km (0.081 R)
• M17: 1,910,066 km (0.074 R)
• M18: 2,035,578 km (0.045 R)
• M19: 2,128,179 km (0.086 R)
• M20: 2,222,276 km (0.069 R)
• M21: 2,340,907 km (0.073 R)
• M22: 2,480,333 km (0.107 R)
• M23: 2,579,815 km (0.115 R)
• M24: 2,728,964 km (0.088 R)
• M25: 2,915,962 km (0.054 R)
• M26: 3,021,129 km (0.118 R)
• M27: 3,132,729 km (0.095 R)
• M28: 3,282,028 km (0.114 R)
• M29: 3,454,813 km (0.119 R)
• M30: 3,722,593 km (0.12 R)
• M31: 3,809,659 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.7

Radius: 13

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.15 AU - 3.53 AU

Year: 3140 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 123.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 41,888,655 km

• M1: 165,455 km (0.105 R)
• M2: 256,411 km (0.105 R)
• M3: 361,877 km (0.049 R)
• M4: 522,994 km (0.069 R)
• M5: 611,107 km (0.086 R)
• M6: 774,169 km (0.089 R)
• M7: 894,595 km (0.114 R)
• M8: 1,074,711 km (0.087 R)
• M9: 1,248,843 km (0.114 R)
• M10: 1,363,884 km (0.096 R)
• M11: 1,678,488 km (0.119 R)
• M12: 1,893,909 km (0.076 R)
• M13: 2,211,206 km (0.081 R)
• M14: 2,352,427 km (0.116 R)
• M15: 2,820,219 km (0.104 R)
• M16: 2,922,394 km (0.088 R)
• M17: 3,196,757 km (0.025 R)
• M18: 3,575,988 km (0.098 R)
• M19: 3,686,989 km (0.085 R)
• M20: 3,771,063 km (0.089 R)
• M21: 4,407,153 km (0.04 R)
• M22: 4,526,383 km (0.066 R)
• M23: 4,783,542 km (0.074 R)
• M24: 5,045,637 km (0.043 R)
• M25: 5,233,382 km (0.058 R)
• M26: 5,600,047 km (0.096 R)
• M27: 5,713,292 km (0.094 R)
• M28: 5,892,810 km (0.041 R)
• M29: 6,173,904 km (0.067 R)
• M30: 6,595,471 km (0.062 R)
• M31: 6,835,576 km (0.113 R)
• M32: 7,218,845 km (0.11 R)
• M33: 7,502,184 km (0.084 R)
• M34: 7,591,344 km (0.107 R)
• M35: 7,771,011 km (0.099 R)
• M36: 8,061,231 km (0.109 R)
• M37: 8,540,692 km (0.082 R)
• M38: 8,652,741 km (0.101 R)
• M39: 8,765,238 km (0.084 R)
• M40: 9,029,428 km (0.099 R)
• M41: 9,430,949 km (0.103 R)
• M42: 9,721,318 km (0.084 R)
• M43: 10,073,621 km (0.037 R)
• M44: 10,211,850 km (0.054 R)
• M45: 10,710,460 km (0.084 R)
• M46: 11,054,086 km (0.065 R)
• M47: 11,421,947 km (0.096 R)
• M48: 11,669,382 km (0.12 R)
• M49: 11,773,053 km (0.067 R)
• M50: 11,960,350 km (0.104 R)
• M51: 12,232,767 km (0.076 R)
• M52: 12,359,178 km (0.041 R)
• M53: 12,549,466 km (0.059 R)
• M54: 12,740,951 km (0.105 R)
• M55: 12,976,119 km (0.12 R)
• M56: 13,320,942 km (0.088 R)
• M57: 13,451,093 km (0.085 R)
• M58: 13,953,592 km (0.092 R)
• M59: 14,085,687 km (0.065 R)
• M60: 14,752,594 km (0.116 R)
• M61: 14,999,730 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.4

Radius: 14

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.89 AU - 3.13 AU

Year: 3426 Days

Day: 10 Hours

Environment

Temp: -196 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 41,888,655 km

• M1: 178,171 km (0.064 R)
• M2: 394,190 km (0.092 R)
• M3: 560,693 km (0.118 R)
• M4: 747,989 km (0.116 R)
• M5: 854,653 km (0.119 R)
• M6: 1,039,406 km (0.083 R)
• M7: 1,180,028 km (0.106 R)
• M8: 1,327,532 km (0.115 R)
• M9: 1,598,752 km (0.083 R)
• M10: 1,946,119 km (0.112 R)
• M11: 2,147,029 km (0.104 R)
• M12: 2,305,453 km (0.103 R)
• M13: 2,442,634 km (0.034 R)
• M14: 2,569,942 km (0.049 R)
• M15: 2,725,524 km (0.105 R)
• M16: 3,253,454 km (0.097 R)
• M17: 3,365,802 km (0.108 R)
• M18: 3,637,771 km (0.077 R)
• M19: 3,946,990 km (0.096 R)
• M20: 4,203,700 km (0.061 R)
• M21: 4,295,553 km (0.073 R)
• M22: 4,861,482 km (0.089 R)
• M23: 4,958,122 km (0.113 R)
• M24: 5,136,892 km (0.051 R)
• M25: 5,720,473 km (0.116 R)
• M26: 5,822,648 km (0.063 R)
• M27: 5,925,422 km (0.099 R)
• M28: 6,290,142 km (0.093 R)
• M29: 6,968,568 km (0.112 R)
• M30: 7,298,282 km (0.098 R)
• M31: 7,595,533 km (0.05 R)
• M32: 7,726,880 km (0.109 R)
• M33: 7,821,126 km (0.073 R)
• M34: 8,125,558 km (0.092 R)
• M35: 8,259,897 km (0.065 R)
• M36: 8,472,625 km (0.07 R)
• M37: 8,628,506 km (0.088 R)
• M38: 9,141,477 km (0.105 R)
• M39: 9,241,408 km (0.075 R)
• M40: 9,563,193 km (0.062 R)
• M41: 9,664,621 km (0.113 R)
• M42: 9,807,188 km (0.088 R)
• M43: 10,094,266 km (0.069 R)
• M44: 10,280,366 km (0.11 R)
• M45: 10,593,025 km (0.085 R)
• M46: 10,739,930 km (0.1 R)
• M47: 10,951,163 km (0.108 R)
• M48: 11,313,339 km (0.062 R)
• M49: 11,528,162 km (0.079 R)
• M50: 11,766,172 km (0.097 R)
• M51: 12,202,998 km (0.053 R)
• M52: 12,868,409 km (0.118 R)
• M53: 13,025,337 km (0.059 R)
• M54: 13,500,011 km (0.095 R)
• M55: 13,888,367 km (0.025 R)
• M56: 14,072,522 km (0.106 R)
• M57: 14,303,800 km (0.112 R)
• M58: 14,652,962 km (0.107 R)
• M59: 15,123,148 km (0.082 R)
• M60: 15,478,892 km (0.118 R)
• M61: 15,717,650 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.4

Radius: 12.6

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.12 AU - 3.88 AU

Year: 4295 Days

Day: 14.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 41,888,655 km

• M1: 162,314 km (0.081 R)
• M2: 327,320 km (0.117 R)
• M3: 442,511 km (0.061 R)
• M4: 630,106 km (0.091 R)
• M5: 774,917 km (0.106 R)
• M6: 1,009,486 km (0.068 R)
• M7: 1,147,565 km (0.081 R)
• M8: 1,255,575 km (0.12 R)
• M9: 1,574,518 km (0.058 R)
• M10: 1,695,841 km (0.084 R)
• M11: 1,905,278 km (0.06 R)
• M12: 2,079,111 km (0.112 R)
• M13: 2,182,932 km (0.103 R)
• M14: 2,380,701 km (0.077 R)
• M15: 2,664,488 km (0.1 R)
• M16: 3,076,929 km (0.062 R)
• M17: 3,616,529 km (0.067 R)
• M18: 3,833,445 km (0.054 R)
• M19: 4,167,049 km (0.096 R)
• M20: 4,337,441 km (0.037 R)
• M21: 4,587,718 km (0.099 R)
• M22: 4,685,256 km (0.078 R)
• M23: 5,573,269 km (0.083 R)
• M24: 5,719,426 km (0.115 R)
• M25: 5,866,780 km (0.111 R)
• M26: 6,122,442 km (0.093 R)
• M27: 6,403,537 km (0.099 R)
• M28: 6,600,707 km (0.044 R)
• M29: 6,688,970 km (0.077 R)
• M30: 6,799,971 km (0.117 R)
• M31: 7,001,180 km (0.105 R)
• M32: 7,226,924 km (0.116 R)
• M33: 7,802,277 km (0.109 R)
• M34: 8,249,425 km (0.097 R)
• M35: 8,560,140 km (0.089 R)
• M36: 8,704,950 km (0.106 R)
• M37: 8,899,129 km (0.057 R)
• M38: 9,292,122 km (0.057 R)
• M39: 9,415,989 km (0.111 R)
• M40: 9,640,536 km (0.096 R)
• M41: 9,740,916 km (0.086 R)
• M42: 10,069,433 km (0.102 R)
• M43: 11,393,673 km (0.043 R)
• M44: 11,633,030 km (0.067 R)
• M45: 12,333,896 km (0.112 R)
• M46: 12,827,120 km (0.083 R)
• M47: 13,354,752 km (0.115 R)
• M48: 13,719,920 km (0.108 R)
• M49: 13,804,742 km (0.091 R)
• M50: 13,946,411 km (0.118 R)
• M51: 14,202,523 km (0.111 R)
• M52: 14,345,538 km (0.033 R)
• M53: 14,546,448 km (0.108 R)
• M54: 15,009,454 km (0.118 R)
• M55: 15,301,169 km (0.061 R)
• M56: 16,277,445 km (0.063 R)
• M57: 17,121,476 km (0.115 R)
• M58: 17,304,285 km (0.081 R)
• M59: 17,549,027 km (0.073 R)
• M60: 17,763,999 km (0.118 R)
• M61: 17,887,268 km (0.081 R)
• M62: 18,010,836 km (0.08 R)
• M63: 18,227,753 km (0.079 R)
• M64: 18,320,952 km (0.12 R)
• M65: 18,476,683 km (0.086 R)
• M66: 18,852,324 km (0.058 R)
• M67: 19,040,967 km (0.1 R)
• M68: 19,420,347 km (0.109 R)
• M69: 19,642,799 km (0.101 R)
• M70: 19,834,134 km (0.049 R)
• M71: 19,930,176 km (0.077 R)
• M72: 20,090,246 km (0.085 R)
• M73: 20,702,999 km (0.109 R)
• M74: 20,897,775 km (0.097 R)
• M75: 20,995,313 km (0.064 R)
• M76: 21,420,022 km (0.097 R)
• M77: 21,814,661 km (0.068 R)
• M78: 21,946,606 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.4

Radius: 12.7

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.53 AU - 5.59 AU

Year: 6388 Days

Day: 5.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 41,888,655 km

• M1: 267,481 km (0.06 R)
• M2: 477,367 km (0.119 R)
• M3: 874,699 km (0.098 R)
• M4: 1,217,577 km (0.108 R)
• M5: 1,381,836 km (0.079 R)
• M6: 1,490,593 km (0.073 R)
• M7: 1,868,477 km (0.106 R)
• M8: 2,500,828 km (0.071 R)
• M9: 2,831,140 km (0.085 R)
• M10: 3,641,511 km (0.069 R)
• M11: 3,838,382 km (0.074 R)
• M12: 4,243,044 km (0.087 R)
• M13: 4,404,161 km (0.079 R)
• M14: 4,543,886 km (0.084 R)
• M15: 5,044,590 km (0.066 R)
• M16: 5,613,211 km (0.12 R)
• M17: 5,892,511 km (0.105 R)
• M18: 6,438,543 km (0.086 R)
• M19: 6,624,194 km (0.111 R)
• M20: 6,731,007 km (0.068 R)
• M21: 7,082,412 km (0.086 R)
• M22: 7,164,242 km (0.109 R)
• M23: 7,412,126 km (0.113 R)
• M24: 7,774,901 km (0.102 R)
• M25: 8,058,089 km (0.103 R)
• M26: 8,200,955 km (0.113 R)
• M27: 8,518,252 km (0.032 R)
• M28: 9,584,736 km (0.096 R)
• M29: 9,949,605 km (0.118 R)
• M30: 10,133,760 km (0.069 R)
• M31: 10,319,112 km (0.1 R)
• M32: 10,881,749 km (0.12 R)
• M33: 11,103,304 km (0.088 R)
• M34: 11,615,377 km (0.084 R)
• M35: 12,728,984 km (0.064 R)
• M36: 12,862,275 km (0.101 R)
• M37: 13,130,205 km (0.097 R)
• M38: 13,637,491 km (0.113 R)
• M39: 14,185,768 km (0.117 R)
• M40: 14,462,673 km (0.086 R)
• M41: 15,233,252 km (0.104 R)
• M42: 15,802,173 km (0.11 R)
• M43: 16,089,101 km (0.069 R)
• M44: 16,668,494 km (0.057 R)
• M45: 17,217,668 km (0.069 R)
• M46: 20,052,398 km (0.062 R)
• M47: 20,168,785 km (0.053 R)
• M48: 21,068,467 km (0.048 R)
• M49: 21,781,749 km (0.09 R)
• M50: 21,901,427 km (0.1 R)
• M51: 23,028,797 km (0.109 R)
• M52: 23,272,791 km (0.111 R)
• M53: 23,804,462 km (0.078 R)
• M54: 24,133,577 km (0.068 R)
• M55: 24,422,900 km (0.105 R)
• M56: 25,549,521 km (0.051 R)
• M57: 26,778,318 km (0.109 R)
• M58: 27,378,355 km (0.105 R)
• M59: 27,680,094 km (0.098 R)
• M60: 28,679,258 km (0.11 R)
• M61: 28,810,456 km (0.108 R)
• M62: 29,117,430 km (0.105 R)
• M63: 29,293,357 km (0.096 R)
• M64: 29,381,321 km (0.108 R)
• M65: 29,469,584 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.1

Radius: 8.7

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.95 AU - 6.03 AU

Year: 7312 Days

Day: 8.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 41,888,655 km

• M1: 123,717 km (0.115 R)
• M2: 245,341 km (0.088 R)
• M3: 346,917 km (0.104 R)
• M4: 401,521 km (0.111 R)
• M5: 465,698 km (0.113 R)
• M6: 654,042 km (0.043 R)
• M7: 791,074 km (0.09 R)
• M8: 970,142 km (0.086 R)
• M9: 1,214,735 km (0.118 R)
• M10: 2,178,743 km (0.064 R)
• M11: 2,343,151 km (0.106 R)
• M12: 2,638,009 km (0.071 R)
• M13: 2,944,684 km (0.074 R)
• M14: 3,114,478 km (0.11 R)
• M15: 3,413,375 km (0.059 R)
• M16: 3,579,129 km (0.076 R)
• M17: 3,918,716 km (0.103 R)
• M18: 4,092,399 km (0.096 R)
• M19: 5,556,364 km (0.112 R)
• M20: 5,812,326 km (0.068 R)
• M21: 6,842,307 km (0.102 R)
• M22: 7,198,051 km (0.098 R)
• M23: 7,477,201 km (0.068 R)
• M24: 8,147,848 km (0.049 R)
• M25: 8,267,227 km (0.078 R)
• M26: 8,335,593 km (0.112 R)
• M27: 8,646,009 km (0.039 R)
• M28: 8,942,811 km (0.078 R)
• M29: 9,438,728 km (0.09 R)
• M30: 9,618,096 km (0.073 R)
• M31: 10,071,377 km (0.089 R)
• M32: 10,438,939 km (0.06 R)
• M33: 11,225,226 km (0.112 R)
• M34: 11,953,019 km (0.097 R)
• M35: 12,147,048 km (0.096 R)
• M36: 12,322,676 km (0.108 R)
• M37: 12,459,857 km (0.097 R)
• M38: 12,755,313 km (0.107 R)
• M39: 13,113,151 km (0.117 R)
• M40: 13,273,221 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 8.6

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.21 AU - 6.09 AU

Year: 8810 Days

Day: 9.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 41,888,655 km

• M1: 110,702 km (0.097 R)
• M2: 262,245 km (0.103 R)
• M3: 380,577 km (0.093 R)
• M4: 705,653 km (0.101 R)
• M5: 799,301 km (0.049 R)
• M6: 1,235,080 km (0.066 R)
• M7: 1,488,050 km (0.1 R)
• M8: 1,569,282 km (0.09 R)
• M9: 2,110,676 km (0.113 R)
• M10: 2,248,905 km (0.093 R)
• M11: 2,437,847 km (0.09 R)
• M12: 2,907,285 km (0.085 R)
• M13: 3,087,401 km (0.1 R)
• M14: 3,404,698 km (0.118 R)
• M15: 3,844,067 km (0.08 R)
• M16: 3,900,166 km (0.082 R)
• M17: 4,214,172 km (0.073 R)
• M18: 4,685,555 km (0.119 R)
• M19: 4,927,604 km (0.039 R)
• M20: 5,455,535 km (0.026 R)
• M21: 5,678,137 km (0.111 R)
• M22: 5,774,478 km (0.042 R)
• M23: 5,903,730 km (0.06 R)
• M24: 6,132,316 km (0.118 R)
• M25: 6,198,139 km (0.105 R)
• M26: 6,397,104 km (0.11 R)
• M27: 7,041,123 km (0.044 R)
• M28: 7,110,088 km (0.1 R)
• M29: 7,214,058 km (0.051 R)
• M30: 7,634,877 km (0.118 R)
• M31: 7,741,241 km (0.078 R)
• M32: 8,208,286 km (0.079 R)
• M33: 8,317,342 km (0.086 R)
• M34: 8,684,306 km (0.028 R)
• M35: 8,758,357 km (0.057 R)
• M36: 8,869,807 km (0.074 R)
• M37: 9,701,721 km (0.046 R)
• M38: 10,165,923 km (0.081 R)
• M39: 10,244,013 km (0.028 R)
• M40: 10,400,792 km (0.105 R)
• M41: 11,277,136 km (0.099 R)
• M42: 11,560,923 km (0.116 R)
• M43: 11,642,454 km (0.087 R)
• M44: 11,765,125 km (0.106 R)
• M45: 12,094,240 km (0.115 R)
• M46: 12,635,635 km (0.107 R)
• M47: 12,930,342 km (0.055 R)
• M48: 13,785,145 km (0.059 R)
• M49: 14,001,613 km (0.058 R)
• M50: 14,132,062 km (0.057 R)
• M51: 15,279,627 km (0.103 R)
• M52: 16,091,495 km (0.072 R)
• M53: 16,640,669 km (0.075 R)
• M54: 17,149,302 km (0.096 R)
• M55: 17,945,611 km (0.104 R)
• M56: 18,040,007 km (0.103 R)
• M57: 18,276,970 km (0.1 R)
• M58: 18,562,553 km (0.09 R)
• M59: 19,428,275 km (0.038 R)
• M60: 19,817,380 km (0.09 R)
• M61: 21,951,992 km (0.053 R)
• M62: 22,662,731 km (0.091 R)
• M63: 23,020,868 km (0.049 R)
• M64: 24,524,477 km (0.06 R)
• M65: 24,681,853 km (0.105 R)
• M66: 25,208,887 km (0.107 R)
• M67: 26,006,243 km (0.104 R)
• M68: 27,680,393 km (0.058 R)
• M69: 29,166,648 km (0.117 R)
• M70: 29,333,300 km (0.112 R)
• M71: 29,556,201 km (0.107 R)
• M72: 30,171,796 km (0.052 R)
• M73: 30,678,634 km (0.102 R)
• M74: 33,429,140 km (0.108 R)
• M75: 33,778,451 km (0.083 R)
• M76: 35,247,054 km (0.111 R)
• M77: 35,365,385 km (0.075 R)
• M78: 35,543,257 km (0.117 R)
• M79: 35,602,648 km (0.036 R)
• M80: 36,376,966 km (0.04 R)
• M81: 37,398,121 km (0.084 R)
• M82: 37,881,921 km (0.034 R)
• M83: 38,063,832 km (0.035 R)
• M84: 38,733,432 km (0.087 R)
• M85: 39,161,581 km (0.115 R)
• M86: 39,775,979 km (0.098 R)
• M87: 40,331,736 km (0.104 R)
• M88: 41,450,728 km (0.044 R)
• M89: 41,513,110 km (0.102 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 14,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit