🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.9

Radius: 8.8

Gravity: 10.96 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.55 AU - 0.57 AU

Year: 284 Days

Day: 14.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 73,148,679 km

• M1: 109,655 km (0.12 R)
• M2: 178,321 km (0.032 R)
• M3: 259,852 km (0.031 R)
• M4: 378,931 km (0.054 R)
• M5: 449,542 km (0.115 R)
• M6: 563,535 km (0.091 R)
• M7: 663,766 km (0.063 R)
• M8: 734,226 km (0.077 R)
• M9: 792,570 km (0.108 R)
• M10: 902,524 km (0.117 R)
• M11: 961,615 km (0.078 R)
• M12: 1,030,281 km (0.104 R)
• M13: 1,194,090 km (0.06 R)
• M14: 1,259,464 km (0.044 R)
• M15: 1,348,625 km (0.105 R)
• M16: 1,495,680 km (0.102 R)
• M17: 1,595,162 km (0.078 R)
• M18: 1,776,026 km (0.095 R)
• M19: 1,841,251 km (0.069 R)
• M20: 1,979,180 km (0.092 R)
• M21: 2,083,599 km (0.076 R)
• M22: 2,254,590 km (0.091 R)
• M23: 2,441,437 km (0.08 R)
• M24: 2,576,375 km (0.083 R)
• M25: 2,661,945 km (0.112 R)
• M26: 2,760,081 km (0.115 R)
• M27: 2,877,216 km (0.099 R)
• M28: 2,984,029 km (0.119 R)
• M29: 3,050,001 km (0.096 R)
• M30: 3,110,439 km (0.118 R)
• M31: 3,195,560 km (0.071 R)
• M32: 3,362,212 km (0.101 R)
• M33: 3,430,878 km (0.083 R)
• M34: 3,525,274 km (0.084 R)
• M35: 3,601,569 km (0.12 R)
• M36: 3,678,312 km (0.103 R)
• M37: 3,762,087 km (0.106 R)
• M38: 3,826,863 km (0.092 R)
• M39: 4,130,248 km (0.1 R)
• M40: 4,197,118 km (0.084 R)
• M41: 4,565,129 km (0.088 R)
• M42: 4,676,130 km (0.118 R)
• M43: 4,745,992 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.9

Radius: 11.4

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.64 AU - 0.84 AU

Year: 432 Days

Day: 11.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,148,679 km

• M1: 143,016 km (0.064 R)
• M2: 219,460 km (0.102 R)
• M3: 310,266 km (0.063 R)
• M4: 412,591 km (0.119 R)
• M5: 489,185 km (0.059 R)
• M6: 569,220 km (0.115 R)
• M7: 772,374 km (0.113 R)
• M8: 869,014 km (0.078 R)
• M9: 940,223 km (0.069 R)
• M10: 1,023,997 km (0.082 R)
• M11: 1,159,832 km (0.093 R)
• M12: 1,246,749 km (0.069 R)
• M13: 1,373,757 km (0.116 R)
• M14: 1,501,215 km (0.107 R)
• M15: 1,633,010 km (0.115 R)
• M16: 1,714,691 km (0.091 R)
• M17: 1,942,678 km (0.075 R)
• M18: 2,047,247 km (0.094 R)
• M19: 2,149,273 km (0.107 R)
• M20: 2,335,522 km (0.117 R)
• M21: 2,475,097 km (0.084 R)
• M22: 2,675,558 km (0.078 R)
• M23: 2,782,670 km (0.067 R)
• M24: 2,856,571 km (0.106 R)
• M25: 3,041,624 km (0.11 R)
• M26: 3,345,158 km (0.074 R)
• M27: 3,466,033 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.4

Radius: 10.9

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.75 AU - 1.03 AU

Year: 569 Days

Day: 13.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 73,148,679 km

• M1: 135,835 km (0.1 R)
• M2: 257,308 km (0.118 R)
• M3: 350,508 km (0.096 R)
• M4: 443,857 km (0.073 R)
• M5: 552,016 km (0.1 R)
• M6: 623,823 km (0.118 R)
• M7: 699,370 km (0.095 R)
• M8: 824,434 km (0.056 R)
• M9: 924,964 km (0.065 R)
• M10: 1,024,147 km (0.056 R)
• M11: 1,133,204 km (0.118 R)
• M12: 1,258,417 km (0.119 R)
• M13: 1,350,869 km (0.119 R)
• M14: 1,426,565 km (0.076 R)
• M15: 1,497,175 km (0.103 R)
• M16: 1,595,611 km (0.101 R)
• M17: 1,827,039 km (0.055 R)
• M18: 1,918,443 km (0.1 R)
• M19: 2,025,854 km (0.098 R)
• M20: 2,217,040 km (0.061 R)
• M21: 2,406,581 km (0.094 R)
• M22: 2,522,818 km (0.117 R)
• M23: 2,657,008 km (0.098 R)
• M24: 2,728,964 km (0.105 R)
• M25: 2,809,747 km (0.12 R)
• M26: 2,907,734 km (0.065 R)
• M27: 2,998,689 km (0.095 R)
• M28: 3,166,389 km (0.103 R)
• M29: 3,363,259 km (0.065 R)
• M30: 3,476,206 km (0.059 R)
• M31: 3,733,065 km (0.102 R)
• M32: 4,125,311 km (0.051 R)
• M33: 4,312,308 km (0.12 R)
• M34: 4,464,000 km (0.071 R)
• M35: 4,598,190 km (0.094 R)
• M36: 4,753,173 km (0.119 R)
• M37: 4,880,331 km (0.036 R)
• M38: 5,018,560 km (0.116 R)
• M39: 5,339,597 km (0.088 R)
• M40: 5,431,151 km (0.064 R)
• M41: 5,605,432 km (0.04 R)
• M42: 5,698,482 km (0.096 R)
• M43: 5,928,115 km (0.074 R)
• M44: 6,118,254 km (0.091 R)
• M45: 6,299,566 km (0.092 R)
• M46: 6,548,048 km (0.086 R)
• M47: 6,635,114 km (0.114 R)
• M48: 6,777,532 km (0.105 R)
• M49: 7,076,727 km (0.084 R)
• M50: 7,188,626 km (0.034 R)
• M51: 7,425,440 km (0.112 R)
• M52: 7,779,987 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.3

Radius: 14

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.46 AU - 1.48 AU

Year: 1209 Days

Day: 12.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 73,148,679 km

• M1: 185,352 km (0.101 R)
• M2: 285,732 km (0.055 R)
• M3: 401,969 km (0.104 R)
• M4: 598,391 km (0.086 R)
• M5: 773,421 km (0.081 R)
• M6: 1,024,147 km (0.082 R)
• M7: 1,118,992 km (0.092 R)
• M8: 1,247,945 km (0.1 R)
• M9: 1,382,284 km (0.065 R)
• M10: 1,563,597 km (0.064 R)
• M11: 1,692,102 km (0.116 R)
• M12: 1,806,544 km (0.091 R)
• M13: 1,923,679 km (0.082 R)
• M14: 2,043,357 km (0.098 R)
• M15: 2,204,025 km (0.096 R)
• M16: 2,359,158 km (0.096 R)
• M17: 2,711,461 km (0.098 R)
• M18: 2,825,754 km (0.117 R)
• M19: 3,189,427 km (0.053 R)
• M20: 3,377,022 km (0.085 R)
• M21: 3,466,631 km (0.106 R)
• M22: 3,659,762 km (0.071 R)
• M23: 3,938,463 km (0.045 R)
• M24: 4,430,939 km (0.11 R)
• M25: 4,554,058 km (0.091 R)
• M26: 4,753,472 km (0.094 R)
• M27: 5,135,396 km (0.05 R)
• M28: 5,382,382 km (0.105 R)
• M29: 5,514,028 km (0.119 R)
• M30: 5,633,557 km (0.105 R)
• M31: 5,888,471 km (0.072 R)
• M32: 6,078,760 km (0.114 R)
• M33: 6,284,906 km (0.05 R)
• M34: 6,465,620 km (0.119 R)
• M35: 6,704,378 km (0.118 R)
• M36: 7,032,147 km (0.108 R)
• M37: 7,248,765 km (0.032 R)
• M38: 7,482,287 km (0.112 R)
• M39: 8,062,128 km (0.105 R)
• M40: 8,273,809 km (0.087 R)
• M41: 8,395,582 km (0.114 R)
• M42: 8,594,697 km (0.12 R)
• M43: 9,091,811 km (0.079 R)
• M44: 9,486,749 km (0.113 R)
• M45: 9,758,568 km (0.034 R)
• M46: 9,871,215 km (0.088 R)
• M47: 10,081,550 km (0.081 R)
• M48: 10,424,578 km (0.087 R)
• M49: 10,638,952 km (0.078 R)
• M50: 10,804,706 km (0.117 R)
• M51: 10,904,638 km (0.054 R)
• M52: 11,088,643 km (0.025 R)
• M53: 11,408,932 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.9

Radius: 8.8

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.2 AU - 2.44 AU

Year: 2397 Days

Day: 5.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 73,148,679 km

• M1: 110,852 km (0.054 R)
• M2: 173,085 km (0.102 R)
• M3: 230,830 km (0.083 R)
• M4: 294,708 km (0.085 R)
• M5: 360,980 km (0.112 R)
• M6: 485,595 km (0.109 R)
• M7: 603,927 km (0.09 R)
• M8: 709,094 km (0.059 R)
• M9: 764,146 km (0.086 R)
• M10: 837,299 km (0.072 R)
• M11: 973,733 km (0.086 R)
• M12: 1,071,719 km (0.107 R)
• M13: 1,182,721 km (0.109 R)
• M14: 1,278,314 km (0.118 R)
• M15: 1,366,577 km (0.059 R)
• M16: 1,446,761 km (0.066 R)
• M17: 1,518,269 km (0.113 R)
• M18: 1,860,698 km (0.049 R)
• M19: 1,961,378 km (0.091 R)
• M20: 2,029,594 km (0.106 R)
• M21: 2,168,421 km (0.098 R)
• M22: 2,479,884 km (0.096 R)
• M23: 2,603,601 km (0.078 R)
• M24: 2,703,982 km (0.057 R)
• M25: 2,947,676 km (0.098 R)
• M26: 3,052,545 km (0.068 R)
• M27: 3,252,407 km (0.027 R)
• M28: 3,429,082 km (0.072 R)
• M29: 3,877,577 km (0.068 R)
• M30: 3,992,618 km (0.112 R)
• M31: 4,050,662 km (0.079 R)
• M32: 4,152,687 km (0.095 R)
• M33: 4,584,876 km (0.09 R)
• M34: 5,157,087 km (0.098 R)
• M35: 5,252,082 km (0.062 R)
• M36: 5,331,668 km (0.032 R)
• M37: 5,411,553 km (0.089 R)
• M38: 5,916,446 km (0.07 R)
• M39: 6,149,370 km (0.091 R)
• M40: 6,368,381 km (0.098 R)
• M41: 6,504,366 km (0.071 R)
• M42: 7,005,668 km (0.111 R)
• M43: 7,163,793 km (0.065 R)
• M44: 7,340,917 km (0.094 R)
• M45: 7,429,928 km (0.095 R)
• M46: 7,591,344 km (0.117 R)
• M47: 7,771,909 km (0.085 R)
• M48: 8,639,576 km (0.051 R)
• M49: 8,809,220 km (0.093 R)
• M50: 9,247,692 km (0.085 R)
• M51: 9,889,466 km (0.093 R)
• M52: 10,365,188 km (0.077 R)
• M53: 10,505,361 km (0.096 R)
• M54: 11,133,672 km (0.095 R)
• M55: 11,338,920 km (0.115 R)
• M56: 11,649,186 km (0.064 R)
• M57: 11,753,306 km (0.076 R)
• M58: 11,836,782 km (0.1 R)
• M59: 12,088,406 km (0.113 R)
• M60: 12,875,290 km (0.109 R)
• M61: 12,939,767 km (0.102 R)
• M62: 13,199,020 km (0.099 R)
• M63: 13,612,808 km (0.106 R)
• M64: 13,700,622 km (0.092 R)
• M65: 14,097,505 km (0.025 R)
• M66: 14,475,838 km (0.077 R)
• M67: 14,677,496 km (0.092 R)
• M68: 15,219,788 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.7

Radius: 7.3

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.56 AU - 7.84 AU

Year: 14492 Days

Day: 19.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 73,148,679 km

• M1: 104,419 km (0.061 R)
• M2: 200,012 km (0.053 R)
• M3: 944,711 km (0.109 R)
• M4: 1,112,410 km (0.09 R)
• M5: 1,358,797 km (0.083 R)
• M6: 2,335,522 km (0.117 R)
• M7: 2,505,914 km (0.111 R)
• M8: 2,980,289 km (0.04 R)
• M9: 3,072,291 km (0.107 R)
• M10: 3,227,873 km (0.116 R)
• M11: 3,579,279 km (0.032 R)
• M12: 4,077,888 km (0.089 R)
• M13: 4,146,105 km (0.09 R)
• M14: 4,283,585 km (0.054 R)
• M15: 4,492,574 km (0.111 R)
• M16: 5,399,137 km (0.113 R)
• M17: 5,777,320 km (0.118 R)
• M18: 7,540,780 km (0.056 R)
• M19: 7,666,741 km (0.076 R)
• M20: 8,393,338 km (0.07 R)
• M21: 8,742,948 km (0.115 R)
• M22: 9,276,115 km (0.025 R)
• M23: 9,774,276 km (0.118 R)
• M24: 10,374,014 km (0.081 R)
• M25: 10,749,056 km (0.102 R)
• M26: 10,843,602 km (0.079 R)
• M27: 11,464,283 km (0.085 R)
• M28: 12,194,770 km (0.041 R)
• M29: 13,700,472 km (0.03 R)
• M30: 14,423,030 km (0.109 R)
• M31: 14,736,587 km (0.107 R)
• M32: 15,423,391 km (0.118 R)
• M33: 16,664,006 km (0.097 R)
• M34: 17,048,024 km (0.09 R)
• M35: 17,490,235 km (0.103 R)
• M36: 17,545,885 km (0.091 R)
• M37: 17,936,486 km (0.11 R)
• M38: 18,048,534 km (0.116 R)
• M39: 18,499,422 km (0.103 R)
• M40: 19,010,897 km (0.056 R)
• M41: 19,182,486 km (0.063 R)
• M42: 19,239,782 km (0.069 R)
• M43: 20,048,059 km (0.104 R)
• M44: 20,456,312 km (0.091 R)
• M45: 21,281,045 km (0.075 R)
• M46: 21,340,435 km (0.102 R)
• M47: 21,578,296 km (0.032 R)
• M48: 21,936,733 km (0.115 R)
• M49: 22,417,690 km (0.12 R)
• M50: 23,023,860 km (0.107 R)
• M51: 23,267,854 km (0.063 R)
• M52: 24,749,621 km (0.096 R)
• M53: 24,999,599 km (0.117 R)
• M54: 25,375,988 km (0.099 R)
• M55: 25,628,060 km (0.096 R)
• M56: 26,007,590 km (0.102 R)
• M57: 26,708,306 km (0.115 R)
• M58: 27,157,399 km (0.102 R)
• M59: 27,350,680 km (0.096 R)
• M60: 28,847,406 km (0.072 R)
• M61: 29,242,195 km (0.111 R)
• M62: 29,638,929 km (0.055 R)
• M63: 29,837,894 km (0.116 R)
• M64: 29,970,737 km (0.026 R)
• M65: 30,103,879 km (0.09 R)
• M66: 31,648,477 km (0.057 R)
• M67: 31,919,847 km (0.049 R)
• M68: 31,987,765 km (0.085 R)
• M69: 32,055,682 km (0.113 R)
• M70: 32,260,033 km (0.108 R)
• M71: 32,328,100 km (0.069 R)
• M72: 33,218,806 km (0.108 R)
• M73: 35,797,723 km (0.094 R)
• M74: 35,938,944 km (0.058 R)
• M75: 37,791,713 km (0.066 R)
• M76: 38,079,540 km (0.094 R)
• M77: 41,144,950 km (0.1 R)
• M78: 41,292,902 km (0.106 R)
• M79: 42,184,356 km (0.096 R)
• M80: 42,482,803 km (0.101 R)
• M81: 43,684,074 km (0.057 R)
• M82: 44,896,266 km (0.066 R)
• M83: 47,044,342 km (0.073 R)
• M84: 48,598,963 km (0.057 R)
• M85: 49,147,089 km (0.119 R)
• M86: 49,697,161 km (0.109 R)
• M87: 51,280,355 km (0.065 R)
• M88: 51,359,941 km (0.107 R)
• M89: 52,558,669 km (0.094 R)
• M90: 52,639,003 km (0.1 R)
• M91: 52,719,187 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564

Radius: 6.7

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.52 AU - 12.06 AU

Year: 20776 Days

Day: 20.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 73,148,679 km

• M1: 135,536 km (0.103 R)
• M2: 179,368 km (0.117 R)
• M3: 541,395 km (0.069 R)
• M4: 924,814 km (0.115 R)
• M5: 1,238,670 km (0.076 R)
• M6: 1,584,092 km (0.086 R)
• M7: 1,644,529 km (0.037 R)
• M8: 1,862,194 km (0.088 R)
• M9: 1,926,073 km (0.056 R)
• M10: 2,088,985 km (0.066 R)
• M11: 2,189,066 km (0.113 R)
• M12: 2,498,584 km (0.043 R)
• M13: 2,640,702 km (0.11 R)
• M14: 2,785,363 km (0.089 R)
• M15: 3,044,915 km (0.09 R)
• M16: 3,351,142 km (0.059 R)
• M17: 3,910,788 km (0.082 R)
• M18: 4,243,493 km (0.036 R)
• M19: 4,542,091 km (0.082 R)
• M20: 5,432,347 km (0.09 R)
• M21: 6,569,590 km (0.045 R)
• M22: 6,716,795 km (0.087 R)
• M23: 6,964,529 km (0.069 R)
• M24: 8,248,079 km (0.109 R)
• M25: 8,727,839 km (0.051 R)
• M26: 8,889,704 km (0.034 R)
• M27: 9,216,426 km (0.095 R)
• M28: 9,271,328 km (0.048 R)
• M29: 10,277,224 km (0.102 R)
• M30: 10,391,068 km (0.106 R)
• M31: 10,908,826 km (0.074 R)
• M32: 11,083,257 km (0.106 R)
• M33: 11,200,093 km (0.049 R)
• M34: 11,317,378 km (0.115 R)
• M35: 11,434,962 km (0.105 R)
• M36: 11,730,867 km (0.101 R)
• M37: 12,149,292 km (0.094 R)
• M38: 12,269,718 km (0.089 R)
• M39: 14,377,403 km (0.12 R)
• M40: 15,082,906 km (0.05 R)
• M41: 16,527,573 km (0.089 R)
• M42: 16,594,293 km (0.1 R)
• M43: 17,198,669 km (0.098 R)
• M44: 18,291,032 km (0.106 R)
• M45: 19,687,678 km (0.096 R)
• M46: 19,758,288 km (0.066 R)
• M47: 20,685,496 km (0.118 R)
• M48: 24,078,376 km (0.117 R)
• M49: 24,609,598 km (0.079 R)
• M50: 25,915,886 km (0.041 R)
• M51: 29,399,722 km (0.089 R)
• M52: 30,538,610 km (0.069 R)
• M53: 31,443,528 km (0.109 R)
• M54: 31,692,010 km (0.062 R)
• M55: 31,857,914 km (0.108 R)
• M56: 31,940,941 km (0.118 R)
• M57: 32,024,117 km (0.099 R)
• M58: 32,775,547 km (0.1 R)
• M59: 33,617,484 km (0.057 R)
• M60: 33,956,173 km (0.119 R)
• M61: 35,064,843 km (0.102 R)
• M62: 35,580,507 km (0.072 R)
• M63: 35,839,311 km (0.09 R)
• M64: 36,185,331 km (0.047 R)
• M65: 37,405,152 km (0.072 R)
• M66: 37,580,481 km (0.092 R)
• M67: 37,844,073 km (0.065 R)
• M68: 40,783,372 km (0.105 R)
• M69: 40,963,787 km (0.066 R)
• M70: 41,325,664 km (0.082 R)
• M71: 42,691,642 km (0.111 R)
• M72: 43,702,774 km (0.072 R)
• M73: 43,979,979 km (0.091 R)
• M74: 52,855,471 km (0.067 R)
• M75: 52,953,906 km (0.078 R)
• M76: 53,249,362 km (0.111 R)
• M77: 54,039,987 km (0.05 R)
• M78: 56,334,369 km (0.054 R)
• M79: 56,938,146 km (0.066 R)
• M80: 57,038,975 km (0.119 R)
• M81: 59,068,121 km (0.09 R)
• M82: 59,579,147 km (0.093 R)
• M83: 60,605,538 km (0.082 R)
• M84: 65,824,110 km (0.068 R)
• M85: 66,991,422 km (0.093 R)
• M86: 67,204,450 km (0.109 R)
• M87: 68,486,952 km (0.11 R)
• M88: 69,669,823 km (0.08 R)
• M89: 70,209,572 km (0.044 R)
• M90: 71,184,800 km (0.1 R)
• M91: 71,402,166 km (0.118 R)
• M92: 71,619,681 km (0.108 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 10,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit