🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.1

Radius: 9.3

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.67 AU - 0.75 AU

Year: 386 Days

Day: 14 Hours

Environment

Temp: -130 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,814,477 km

• M1: 115,938 km (0.066 R)
• M2: 173,982 km (0.097 R)
• M3: 270,473 km (0.115 R)
• M4: 343,926 km (0.112 R)
• M5: 408,701 km (0.104 R)
• M6: 470,635 km (0.09 R)
• M7: 530,773 km (0.068 R)
• M8: 654,042 km (0.072 R)
• M9: 716,424 km (0.11 R)
• M10: 810,671 km (0.108 R)
• M11: 909,555 km (0.071 R)
• M12: 1,023,399 km (0.049 R)
• M13: 1,093,560 km (0.074 R)
• M14: 1,180,626 km (0.102 R)
• M15: 1,246,599 km (0.085 R)
• M16: 1,313,769 km (0.064 R)
• M17: 1,402,779 km (0.119 R)
• M18: 1,514,678 km (0.103 R)
• M19: 1,686,267 km (0.093 R)
• M20: 1,770,042 km (0.047 R)
• M21: 1,882,540 km (0.079 R)
• M22: 1,969,606 km (0.118 R)
• M23: 2,039,318 km (0.075 R)
• M24: 2,176,499 km (0.106 R)
• M25: 2,258,329 km (0.116 R)
• M26: 2,375,764 km (0.109 R)
• M27: 2,460,137 km (0.1 R)
• M28: 2,719,390 km (0.096 R)
• M29: 2,781,772 km (0.106 R)
• M30: 2,918,505 km (0.062 R)
• M31: 2,993,005 km (0.111 R)
• M32: 3,155,019 km (0.115 R)
• M33: 3,220,543 km (0.086 R)
• M34: 3,303,271 km (0.059 R)
• M35: 3,442,546 km (0.112 R)
• M36: 3,555,493 km (0.051 R)
• M37: 3,618,025 km (0.093 R)
• M38: 3,692,524 km (0.09 R)
• M39: 3,767,622 km (0.08 R)
• M40: 3,978,107 km (0.104 R)
• M41: 4,060,984 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.1

Radius: 14

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.8 AU - 0.82 AU

Year: 471 Days

Day: 13 Hours

Environment

Temp: -138 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,814,477 km

• M1: 186,249 km (0.094 R)
• M2: 284,685 km (0.061 R)
• M3: 373,247 km (0.092 R)
• M4: 463,903 km (0.059 R)
• M5: 629,957 km (0.105 R)
• M6: 720,463 km (0.092 R)
• M7: 840,441 km (0.037 R)
• M8: 964,757 km (0.066 R)
• M9: 1,085,931 km (0.076 R)
• M10: 1,177,934 km (0.049 R)
• M11: 1,301,501 km (0.116 R)
• M12: 1,440,927 km (0.107 R)
• M13: 1,644,230 km (0.073 R)
• M14: 1,731,595 km (0.064 R)
• M15: 1,857,407 km (0.098 R)
• M16: 1,965,417 km (0.078 R)
• M17: 2,097,213 km (0.071 R)
• M18: 2,236,339 km (0.112 R)
• M19: 2,356,316 km (0.09 R)
• M20: 2,528,952 km (0.119 R)
• M21: 2,654,165 km (0.029 R)
• M22: 2,810,196 km (0.089 R)
• M23: 2,940,197 km (0.063 R)
• M24: 3,067,355 km (0.109 R)
• M25: 3,156,365 km (0.116 R)
• M26: 3,261,533 km (0.113 R)
• M27: 3,506,275 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.2

Radius: 9.3

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.91 AU - 1.31 AU

Year: 755 Days

Day: 6.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,814,477 km

• M1: 115,789 km (0.112 R)
• M2: 180,714 km (0.092 R)
• M3: 241,601 km (0.104 R)
• M4: 312,061 km (0.077 R)
• M5: 432,637 km (0.111 R)
• M6: 499,806 km (0.098 R)
• M7: 663,915 km (0.048 R)
• M8: 725,250 km (0.108 R)
• M9: 831,016 km (0.091 R)
• M10: 958,474 km (0.067 R)
• M11: 1,024,745 km (0.087 R)
• M12: 1,114,355 km (0.104 R)
• M13: 1,197,681 km (0.084 R)
• M14: 1,269,637 km (0.119 R)
• M15: 1,333,815 km (0.11 R)
• M16: 1,479,972 km (0.06 R)
• M17: 1,562,400 km (0.111 R)
• M18: 1,641,537 km (0.075 R)
• M19: 1,701,676 km (0.106 R)
• M20: 1,814,173 km (0.062 R)
• M21: 2,305,453 km (0.031 R)
• M22: 2,367,685 km (0.116 R)
• M23: 2,459,090 km (0.108 R)
• M24: 2,563,360 km (0.095 R)
• M25: 2,622,002 km (0.11 R)
• M26: 2,716,697 km (0.089 R)
• M27: 2,946,330 km (0.08 R)
• M28: 3,026,365 km (0.062 R)
• M29: 3,220,094 km (0.087 R)
• M30: 3,308,955 km (0.065 R)
• M31: 3,443,893 km (0.12 R)
• M32: 3,574,043 km (0.117 R)
• M33: 3,825,966 km (0.097 R)
• M34: 4,022,088 km (0.102 R)
• M35: 4,090,455 km (0.027 R)
• M36: 4,249,328 km (0.089 R)
• M37: 4,452,481 km (0.069 R)
• M38: 4,544,634 km (0.074 R)
• M39: 4,709,341 km (0.092 R)
• M40: 4,774,266 km (0.1 R)
• M41: 4,934,336 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719

Radius: 14.1

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.96 AU - 5.08 AU

Year: 7262 Days

Day: 6.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 67,814,477 km

• M1: 181,761 km (0.117 R)
• M2: 488,736 km (0.106 R)
• M3: 794,963 km (0.081 R)
• M4: 885,470 km (0.049 R)
• M5: 980,165 km (0.076 R)
• M6: 1,359,097 km (0.104 R)
• M7: 2,033,185 km (0.112 R)
• M8: 2,249,802 km (0.048 R)
• M9: 2,338,813 km (0.111 R)
• M10: 2,428,871 km (0.079 R)
• M11: 2,589,539 km (0.119 R)
• M12: 3,267,816 km (0.114 R)
• M13: 3,549,359 km (0.103 R)
• M14: 3,759,095 km (0.087 R)
• M15: 3,945,943 km (0.056 R)
• M16: 4,525,485 km (0.063 R)
• M17: 4,956,028 km (0.099 R)
• M18: 5,399,885 km (0.088 R)
• M19: 6,199,635 km (0.112 R)
• M20: 6,840,213 km (0.103 R)
• M21: 6,970,962 km (0.091 R)
• M22: 7,502,034 km (0.083 R)
• M23: 7,603,162 km (0.062 R)
• M24: 7,909,090 km (0.106 R)
• M25: 8,323,326 km (0.074 R)
• M26: 8,498,057 km (0.098 R)
• M27: 8,958,070 km (0.089 R)
• M28: 9,209,095 km (0.047 R)
• M29: 9,571,870 km (0.085 R)
• M30: 9,681,675 km (0.111 R)
• M31: 10,461,678 km (0.116 R)
• M32: 10,726,317 km (0.102 R)
• M33: 12,280,340 km (0.085 R)
• M34: 12,399,719 km (0.102 R)
• M35: 12,519,397 km (0.119 R)
• M36: 14,028,241 km (0.099 R)
• M37: 14,194,893 km (0.074 R)
• M38: 16,595,191 km (0.112 R)
• M39: 16,683,304 km (0.071 R)
• M40: 16,992,673 km (0.096 R)
• M41: 17,617,094 km (0.097 R)
• M42: 18,340,101 km (0.065 R)
• M43: 18,431,056 km (0.082 R)
• M44: 20,001,983 km (0.104 R)
• M45: 20,236,553 km (0.069 R)
• M46: 20,613,839 km (0.12 R)
• M47: 20,898,374 km (0.095 R)
• M48: 21,184,255 km (0.082 R)
• M49: 21,279,848 km (0.103 R)
• M50: 22,243,408 km (0.12 R)
• M51: 22,486,505 km (0.096 R)
• M52: 22,779,417 km (0.07 R)
• M53: 23,024,459 km (0.117 R)
• M54: 24,814,846 km (0.091 R)
• M55: 25,982,009 km (0.115 R)
• M56: 26,084,334 km (0.092 R)
• M57: 26,238,120 km (0.078 R)
• M58: 26,392,206 km (0.12 R)
• M59: 26,546,591 km (0.067 R)
• M60: 27,218,884 km (0.089 R)
• M61: 27,479,034 km (0.106 R)
• M62: 27,792,292 km (0.078 R)
• M63: 28,211,765 km (0.078 R)
• M64: 28,792,055 km (0.12 R)
• M65: 31,206,565 km (0.03 R)
• M66: 31,861,355 km (0.068 R)
• M67: 32,300,424 km (0.109 R)
• M68: 32,631,036 km (0.083 R)
• M69: 33,018,195 km (0.102 R)
• M70: 33,741,201 km (0.105 R)
• M71: 35,656,802 km (0.059 R)
• M72: 35,941,487 km (0.085 R)
• M73: 36,226,920 km (0.063 R)
• M74: 36,570,396 km (0.094 R)
• M75: 36,685,138 km (0.107 R)
• M76: 37,491,770 km (0.074 R)
• M77: 38,246,042 km (0.106 R)
• M78: 38,654,295 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.5

Radius: 14.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.85 AU - 5.36 AU

Year: 7437 Days

Day: 12.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 67,814,477 km

• M1: 192,233 km (0.072 R)
• M2: 284,386 km (0.1 R)
• M3: 544,387 km (0.101 R)
• M4: 807,978 km (0.083 R)
• M5: 1,048,083 km (0.059 R)
• M6: 1,356,553 km (0.07 R)
• M7: 1,662,930 km (0.073 R)
• M8: 2,147,029 km (0.03 R)
• M9: 2,396,558 km (0.108 R)
• M10: 2,808,251 km (0.084 R)
• M11: 3,062,268 km (0.027 R)
• M12: 3,891,190 km (0.083 R)
• M13: 4,375,887 km (0.096 R)
• M14: 5,769,990 km (0.104 R)
• M15: 6,119,899 km (0.086 R)
• M16: 6,761,973 km (0.11 R)
• M17: 8,502,844 km (0.094 R)
• M18: 8,616,089 km (0.115 R)
• M19: 8,958,818 km (0.067 R)
• M20: 9,393,699 km (0.083 R)
• M21: 9,657,889 km (0.081 R)
• M22: 9,924,622 km (0.067 R)
• M23: 10,954,154 km (0.107 R)
• M24: 12,144,954 km (0.078 R)
• M25: 12,400,915 km (0.105 R)
• M26: 12,561,733 km (0.096 R)
• M27: 12,885,613 km (0.091 R)
• M28: 13,212,334 km (0.11 R)
• M29: 13,475,627 km (0.098 R)
• M30: 14,512,340 km (0.069 R)
• M31: 14,818,118 km (0.094 R)
• M32: 14,954,701 km (0.027 R)
• M33: 15,366,992 km (0.104 R)
• M34: 15,783,024 km (0.075 R)
• M35: 16,273,256 km (0.112 R)
• M36: 16,591,002 km (0.108 R)
• M37: 16,910,842 km (0.073 R)
• M38: 17,991,687 km (0.085 R)
• M39: 18,320,204 km (0.063 R)
• M40: 18,761,518 km (0.091 R)
• M41: 18,909,470 km (0.057 R)
• M42: 20,295,494 km (0.114 R)
• M43: 21,598,043 km (0.074 R)
• M44: 22,220,370 km (0.052 R)
• M45: 22,376,999 km (0.08 R)
• M46: 22,927,669 km (0.105 R)
• M47: 23,204,575 km (0.11 R)
• M48: 24,122,657 km (0.059 R)
• M49: 24,646,848 km (0.064 R)
• M50: 25,174,778 km (0.114 R)
• M51: 25,378,830 km (0.098 R)
• M52: 25,829,568 km (0.057 R)
• M53: 26,365,877 km (0.114 R)
• M54: 27,030,839 km (0.063 R)
• M55: 28,462,491 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 555.4

Radius: 7.7

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.38 AU - 9.58 AU

Year: 15944 Days

Day: 21.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 67,814,477 km

• M1: 117,285 km (0.07 R)
• M2: 242,797 km (0.119 R)
• M3: 460,911 km (0.106 R)
• M4: 601,383 km (0.112 R)
• M5: 677,230 km (0.083 R)
• M6: 1,058,854 km (0.099 R)
• M7: 1,346,680 km (0.099 R)
• M8: 1,605,185 km (0.066 R)
• M9: 1,795,324 km (0.049 R)
• M10: 1,992,943 km (0.075 R)
• M11: 2,109,031 km (0.065 R)
• M12: 2,317,869 km (0.096 R)
• M13: 2,409,274 km (0.098 R)
• M14: 2,691,116 km (0.056 R)
• M15: 2,884,995 km (0.108 R)
• M16: 2,950,519 km (0.079 R)
• M17: 3,150,531 km (0.056 R)
• M18: 3,320,474 km (0.111 R)
• M19: 3,389,289 km (0.071 R)
• M20: 4,215,070 km (0.099 R)
• M21: 5,461,818 km (0.097 R)
• M22: 5,625,329 km (0.042 R)
• M23: 5,915,249 km (0.079 R)
• M24: 6,857,866 km (0.068 R)
• M25: 7,078,522 km (0.114 R)
• M26: 7,436,660 km (0.071 R)
• M27: 7,527,017 km (0.098 R)
• M28: 8,879,082 km (0.103 R)
• M29: 8,975,124 km (0.102 R)
• M30: 9,071,465 km (0.104 R)
• M31: 9,216,575 km (0.095 R)
• M32: 10,405,429 km (0.111 R)
• M33: 10,506,707 km (0.106 R)
• M34: 10,761,173 km (0.089 R)
• M35: 11,694,365 km (0.094 R)
• M36: 13,361,334 km (0.101 R)
• M37: 13,416,386 km (0.054 R)
• M38: 13,637,043 km (0.096 R)
• M39: 13,692,544 km (0.083 R)
• M40: 14,250,394 km (0.092 R)
• M41: 15,330,939 km (0.11 R)
• M42: 15,851,989 km (0.04 R)
• M43: 16,143,854 km (0.085 R)
• M44: 16,673,879 km (0.053 R)
• M45: 16,911,291 km (0.082 R)
• M46: 17,269,429 km (0.095 R)
• M47: 18,727,110 km (0.112 R)
• M48: 18,788,745 km (0.093 R)
• M49: 20,034,745 km (0.104 R)
• M50: 20,413,677 km (0.099 R)
• M51: 20,477,106 km (0.096 R)
• M52: 20,795,002 km (0.071 R)
• M53: 21,500,356 km (0.067 R)
• M54: 22,083,189 km (0.108 R)
• M55: 23,198,291 km (0.073 R)
• M56: 23,796,084 km (0.048 R)
• M57: 24,735,858 km (0.095 R)
• M58: 25,006,630 km (0.091 R)
• M59: 25,482,950 km (0.071 R)
• M60: 25,962,112 km (0.045 R)
• M61: 27,767,908 km (0.116 R)
• M62: 29,041,734 km (0.064 R)
• M63: 29,113,092 km (0.105 R)
• M64: 29,255,958 km (0.101 R)
• M65: 29,757,560 km (0.063 R)
• M66: 30,479,220 km (0.106 R)
• M67: 31,645,934 km (0.117 R)
• M68: 31,792,839 km (0.114 R)
• M69: 32,604,557 km (0.047 R)
• M70: 33,947,646 km (0.099 R)
• M71: 34,777,167 km (0.1 R)
• M72: 35,460,978 km (0.119 R)
• M73: 38,005,788 km (0.067 R)
• M74: 39,024,250 km (0.079 R)
• M75: 39,813,977 km (0.083 R)
• M76: 42,537,855 km (0.077 R)
• M77: 45,238,546 km (0.107 R)
• M78: 47,069,624 km (0.088 R)
• M79: 47,405,172 km (0.074 R)
• M80: 47,573,170 km (0.119 R)
• M81: 49,605,308 km (0.116 R)
• M82: 49,690,728 km (0.06 R)
• M83: 50,203,400 km (0.068 R)
• M84: 50,374,689 km (0.113 R)
• M85: 51,492,933 km (0.11 R)
• M86: 53,141,951 km (0.107 R)
• M87: 55,161,223 km (0.04 R)
• M88: 56,313,725 km (0.103 R)
• M89: 57,294,937 km (0.106 R)
• M90: 57,832,592 km (0.069 R)
• M91: 58,642,216 km (0.09 R)
• M92: 59,999,816 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.2

Radius: 6.6

Gravity: 14.95 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.33 AU - 10.55 AU

Year: 17259 Days

Day: 24.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 67,814,477 km

• M1: 88,113 km (0.085 R)
• M2: 232,176 km (0.116 R)
• M3: 750,383 km (0.107 R)
• M4: 794,365 km (0.05 R)
• M5: 862,133 km (0.069 R)
• M6: 1,077,553 km (0.043 R)
• M7: 1,557,613 km (0.059 R)
• M8: 1,643,482 km (0.034 R)
• M9: 2,223,922 km (0.075 R)
• M10: 2,353,773 km (0.103 R)
• M11: 2,827,549 km (0.106 R)
• M12: 3,744,734 km (0.099 R)
• M13: 3,899,568 km (0.077 R)
• M14: 4,056,346 km (0.045 R)
• M15: 4,215,369 km (0.082 R)
• M16: 4,746,142 km (0.086 R)
• M17: 5,083,186 km (0.032 R)
• M18: 5,384,476 km (0.111 R)
• M19: 5,428,009 km (0.111 R)
• M20: 7,166,785 km (0.102 R)
• M21: 7,214,806 km (0.055 R)
• M22: 7,946,340 km (0.09 R)
• M23: 8,548,621 km (0.11 R)
• M24: 9,321,892 km (0.088 R)
• M25: 9,637,544 km (0.064 R)
• M26: 10,934,557 km (0.119 R)
• M27: 13,039,100 km (0.078 R)
• M28: 13,273,969 km (0.109 R)
• M29: 15,079,615 km (0.091 R)
• M30: 15,387,936 km (0.081 R)
• M31: 15,511,803 km (0.088 R)
• M32: 15,573,886 km (0.119 R)
• M33: 16,325,466 km (0.077 R)
• M34: 16,451,876 km (0.09 R)
• M35: 17,217,219 km (0.118 R)
• M36: 18,190,054 km (0.045 R)
• M37: 18,584,095 km (0.091 R)
• M38: 19,047,549 km (0.065 R)
• M39: 19,113,970 km (0.12 R)
• M40: 20,120,914 km (0.077 R)
• M41: 20,256,449 km (0.045 R)
• M42: 20,664,851 km (0.119 R)
• M43: 21,976,226 km (0.04 R)
• M44: 24,172,922 km (0.026 R)
• M45: 24,533,752 km (0.101 R)
• M46: 24,606,157 km (0.117 R)
• M47: 24,678,562 km (0.115 R)
• M48: 24,751,117 km (0.088 R)
• M49: 25,994,724 km (0.118 R)
• M50: 26,216,279 km (0.111 R)
• M51: 26,661,333 km (0.107 R)
• M52: 28,314,539 km (0.103 R)
• M53: 28,771,111 km (0.049 R)
• M54: 29,000,295 km (0.052 R)
• M55: 29,460,458 km (0.085 R)
• M56: 29,845,822 km (0.086 R)
• M57: 30,077,849 km (0.109 R)
• M58: 30,543,696 km (0.107 R)
• M59: 31,246,956 km (0.074 R)
• M60: 31,404,034 km (0.117 R)
• M61: 32,510,310 km (0.11 R)
• M62: 33,068,310 km (0.116 R)
• M63: 33,388,599 km (0.106 R)
• M64: 34,355,450 km (0.046 R)
• M65: 34,842,391 km (0.096 R)
• M66: 35,005,154 km (0.068 R)
• M67: 35,741,026 km (0.083 R)
• M68: 37,061,526 km (0.086 R)
• M69: 37,477,558 km (0.115 R)
• M70: 38,062,485 km (0.028 R)
• M71: 38,819,002 km (0.12 R)
• M72: 38,987,748 km (0.117 R)
• M73: 42,936,683 km (0.072 R)
• M74: 43,198,629 km (0.093 R)
• M75: 43,285,994 km (0.111 R)
• M76: 44,869,787 km (0.047 R)
• M77: 45,936,121 km (0.117 R)
• M78: 46,293,510 km (0.098 R)
• M79: 46,382,969 km (0.056 R)
• M80: 48,547,501 km (0.084 R)
• M81: 48,638,307 km (0.109 R)
• M82: 52,693,606 km (0.057 R)
• M83: 52,880,603 km (0.08 R)
• M84: 55,330,268 km (0.12 R)
• M85: 56,473,346 km (0.114 R)
• M86: 56,760,275 km (0.082 R)
• M87: 56,951,909 km (0.11 R)
• M88: 59,462,012 km (0.065 R)
• M89: 60,926,575 km (0.108 R)
• M90: 61,220,834 km (0.085 R)
• M91: 62,996,711 km (0.076 R)
• M92: 66,397,070 km (0.111 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: 507 - 19,422 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit