🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.8

Radius: 8.7

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.46 AU - 1.48 AU

Year: 1253 Days

Day: 7.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 87,964,851 km

• M1: 119,379 km (0.12 R)
• M2: 271,071 km (0.118 R)
• M3: 336,446 km (0.026 R)
• M4: 572,212 km (0.096 R)
• M5: 645,216 km (0.113 R)
• M6: 704,008 km (0.102 R)
• M7: 962,513 km (0.084 R)
• M8: 1,063,641 km (0.069 R)
• M9: 1,159,832 km (0.095 R)
• M10: 1,250,489 km (0.116 R)
• M11: 1,325,587 km (0.092 R)
• M12: 1,393,055 km (0.09 R)
• M13: 1,517,820 km (0.093 R)
• M14: 1,631,814 km (0.105 R)
• M15: 1,704,518 km (0.1 R)
• M16: 1,980,676 km (0.077 R)
• M17: 2,058,467 km (0.093 R)
• M18: 2,185,176 km (0.098 R)
• M19: 2,287,351 km (0.12 R)
• M20: 2,530,298 km (0.104 R)
• M21: 2,816,330 km (0.095 R)
• M22: 3,058,828 km (0.102 R)
• M23: 3,137,067 km (0.064 R)
• M24: 3,271,107 km (0.11 R)
• M25: 3,419,658 km (0.095 R)
• M26: 3,557,737 km (0.044 R)
• M27: 3,930,534 km (0.079 R)
• M28: 4,336,094 km (0.119 R)
• M29: 4,417,476 km (0.095 R)
• M30: 4,513,218 km (0.069 R)
• M31: 4,588,765 km (0.088 R)
• M32: 4,650,998 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.4

Radius: 14.4

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.68 AU - 2.34 AU

Year: 2003 Days

Day: 7.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (61)

Outer Limit: 87,964,851 km

• M1: 224,546 km (0.104 R)
• M2: 528,230 km (0.071 R)
• M3: 735,872 km (0.094 R)
• M4: 1,039,556 km (0.106 R)
• M5: 1,258,118 km (0.081 R)
• M6: 1,394,851 km (0.07 R)
• M7: 1,649,765 km (0.076 R)
• M8: 2,067,592 km (0.104 R)
• M9: 2,465,523 km (0.034 R)
• M10: 2,694,258 km (0.072 R)
• M11: 2,902,049 km (0.077 R)
• M12: 3,015,145 km (0.071 R)
• M13: 3,172,971 km (0.116 R)
• M14: 3,755,505 km (0.026 R)
• M15: 3,848,106 km (0.074 R)
• M16: 4,082,975 km (0.093 R)
• M17: 4,242,296 km (0.118 R)
• M18: 4,436,325 km (0.07 R)
• M19: 4,816,453 km (0.104 R)
• M20: 5,138,537 km (0.092 R)
• M21: 5,643,879 km (0.057 R)
• M22: 5,857,654 km (0.049 R)
• M23: 6,019,818 km (0.116 R)
• M24: 6,311,833 km (0.035 R)
• M25: 6,459,636 km (0.09 R)
• M26: 6,796,381 km (0.109 R)
• M27: 6,985,921 km (0.078 R)
• M28: 7,119,811 km (0.096 R)
• M29: 7,215,853 km (0.064 R)
• M30: 7,409,283 km (0.084 R)
• M31: 7,821,276 km (0.071 R)
• M32: 8,040,138 km (0.098 R)
• M33: 8,220,702 km (0.099 R)
• M34: 8,402,613 km (0.055 R)
• M35: 8,770,474 km (0.118 R)
• M36: 9,206,403 km (0.11 R)
• M37: 9,522,204 km (0.103 R)
• M38: 9,649,511 km (0.113 R)
• M39: 9,777,268 km (0.115 R)
• M40: 10,077,960 km (0.036 R)
• M41: 10,338,110 km (0.096 R)
• M42: 10,600,356 km (0.11 R)
• M43: 10,909,275 km (0.087 R)
• M44: 11,154,017 km (0.056 R)
• M45: 11,694,514 km (0.084 R)
• M46: 12,059,533 km (0.106 R)
• M47: 12,359,028 km (0.102 R)
• M48: 12,451,629 km (0.097 R)
• M49: 12,684,104 km (0.053 R)
• M50: 12,941,712 km (0.102 R)
• M51: 13,366,869 km (0.099 R)
• M52: 13,700,622 km (0.112 R)
• M53: 14,085,537 km (0.095 R)
• M54: 14,498,577 km (0.097 R)
• M55: 14,940,190 km (0.036 R)
• M56: 15,336,325 km (0.102 R)
• M57: 15,610,837 km (0.078 R)
• M58: 15,987,674 km (0.03 R)
• M59: 16,088,653 km (0.109 R)
• M60: 16,545,973 km (0.106 R)
• M61: 17,291,569 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.5

Radius: 10.1

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.61 AU - 2.43 AU

Year: 2018 Days

Day: 9.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 87,964,851 km

• M1: 142,118 km (0.062 R)
• M2: 273,465 km (0.059 R)
• M3: 406,607 km (0.055 R)
• M4: 641,924 km (0.104 R)
• M5: 788,979 km (0.082 R)
• M6: 866,920 km (0.12 R)
• M7: 1,003,203 km (0.045 R)
• M8: 1,117,646 km (0.115 R)
• M9: 1,391,410 km (0.08 R)
• M10: 1,755,082 km (0.099 R)
• M11: 1,918,293 km (0.036 R)
• M12: 2,111,125 km (0.109 R)
• M13: 2,621,104 km (0.044 R)
• M14: 2,741,082 km (0.1 R)
• M15: 2,849,241 km (0.089 R)
• M16: 3,154,271 km (0.111 R)
• M17: 3,557,886 km (0.116 R)
• M18: 3,735,908 km (0.101 R)
• M19: 3,856,184 km (0.091 R)
• M20: 4,147,152 km (0.06 R)
• M21: 4,366,313 km (0.027 R)
• M22: 4,557,050 km (0.115 R)
• M23: 4,621,228 km (0.103 R)
• M24: 4,718,167 km (0.097 R)
• M25: 5,845,986 km (0.052 R)
• M26: 6,003,662 km (0.037 R)
• M27: 6,305,251 km (0.072 R)
• M28: 6,431,063 km (0.105 R)
• M29: 6,575,724 km (0.073 R)
• M30: 6,703,181 km (0.067 R)
• M31: 6,979,040 km (0.086 R)
• M32: 7,371,734 km (0.12 R)
• M33: 7,485,279 km (0.099 R)
• M34: 7,733,163 km (0.108 R)
• M35: 7,829,354 km (0.103 R)
• M36: 8,217,710 km (0.043 R)
• M37: 8,513,166 km (0.084 R)
• M38: 8,652,142 km (0.071 R)
• M39: 9,134,745 km (0.041 R)
• M40: 9,216,126 km (0.097 R)
• M41: 9,318,003 km (0.117 R)
• M42: 9,543,596 km (0.099 R)
• M43: 9,729,546 km (0.106 R)
• M44: 9,958,431 km (0.037 R)
• M45: 10,042,206 km (0.082 R)
• M46: 10,147,074 km (0.105 R)
• M47: 10,210,204 km (0.093 R)
• M48: 10,379,250 km (0.108 R)
• M49: 10,506,558 km (0.115 R)
• M50: 10,591,828 km (0.068 R)
• M51: 10,827,295 km (0.047 R)
• M52: 10,891,922 km (0.056 R)
• M53: 11,043,016 km (0.047 R)
• M54: 11,368,989 km (0.026 R)
• M55: 11,500,336 km (0.103 R)
• M56: 11,566,159 km (0.09 R)
• M57: 11,654,273 km (0.069 R)
• M58: 11,808,807 km (0.092 R)
• M59: 11,919,659 km (0.073 R)
• M60: 12,030,810 km (0.106 R)
• M61: 12,164,551 km (0.062 R)
• M62: 12,343,769 km (0.094 R)
• M63: 12,456,267 km (0.097 R)
• M64: 12,614,392 km (0.057 R)
• M65: 13,322,289 km (0.106 R)
• M66: 13,692,693 km (0.116 R)
• M67: 14,019,564 km (0.071 R)
• M68: 14,090,025 km (0.057 R)
• M69: 14,325,492 km (0.102 R)
• M70: 14,562,156 km (0.115 R)
• M71: 15,184,034 km (0.094 R)
• M72: 15,546,660 km (0.075 R)
• M73: 16,157,318 km (0.1 R)
• M74: 16,231,219 km (0.07 R)
• M75: 16,577,239 km (0.088 R)
• M76: 16,676,572 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.2

Radius: 11.3

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.44 AU - 3.14 AU

Year: 3276 Days

Day: 7.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 87,964,851 km

• M1: 142,716 km (0.041 R)
• M2: 215,720 km (0.044 R)
• M3: 637,437 km (0.081 R)
• M4: 863,479 km (0.086 R)
• M5: 980,464 km (0.045 R)
• M6: 1,078,301 km (0.092 R)
• M7: 1,378,694 km (0.032 R)
• M8: 1,560,455 km (0.03 R)
• M9: 1,661,733 km (0.103 R)
• M10: 2,073,277 km (0.114 R)
• M11: 2,217,489 km (0.045 R)
• M12: 2,584,602 km (0.083 R)
• M13: 2,863,752 km (0.112 R)
• M14: 3,007,067 km (0.076 R)
• M15: 3,152,775 km (0.092 R)
• M16: 3,357,126 km (0.111 R)
• M17: 3,956,265 km (0.048 R)
• M18: 4,156,726 km (0.09 R)
• M19: 4,298,994 km (0.062 R)
• M20: 5,056,558 km (0.097 R)
• M21: 5,230,690 km (0.099 R)
• M22: 5,340,345 km (0.034 R)
• M23: 6,409,670 km (0.095 R)
• M24: 6,645,586 km (0.1 R)
• M25: 6,716,944 km (0.06 R)
• M26: 7,272,551 km (0.073 R)
• M27: 7,395,221 km (0.081 R)
• M28: 7,667,788 km (0.088 R)
• M29: 7,968,779 km (0.07 R)
• M30: 8,222,647 km (0.066 R)
• M31: 8,427,746 km (0.117 R)
• M32: 9,079,394 km (0.093 R)
• M33: 9,291,374 km (0.082 R)
• M34: 9,505,000 km (0.081 R)
• M35: 9,585,633 km (0.117 R)
• M36: 9,964,415 km (0.091 R)
• M37: 10,238,029 km (0.098 R)
• M38: 10,569,688 km (0.064 R)
• M39: 10,653,164 km (0.115 R)
• M40: 10,933,061 km (0.049 R)
• M41: 11,186,929 km (0.091 R)
• M42: 11,385,894 km (0.119 R)
• M43: 11,557,184 km (0.119 R)
• M44: 11,902,605 km (0.092 R)
• M45: 12,485,737 km (0.114 R)
• M46: 12,603,471 km (0.071 R)
• M47: 12,780,894 km (0.081 R)
• M48: 13,018,605 km (0.063 R)
• M49: 13,679,977 km (0.051 R)
• M50: 13,801,451 km (0.086 R)
• M51: 14,045,295 km (0.052 R)
• M52: 14,259,968 km (0.08 R)
• M53: 14,413,904 km (0.074 R)
• M54: 14,537,472 km (0.051 R)
• M55: 14,723,572 km (0.078 R)
• M56: 15,160,697 km (0.051 R)
• M57: 15,412,470 km (0.117 R)
• M58: 15,760,884 km (0.101 R)
• M59: 15,951,920 km (0.118 R)
• M60: 16,111,840 km (0.083 R)
• M61: 16,594,742 km (0.103 R)
• M62: 16,984,295 km (0.087 R)
• M63: 17,377,139 km (0.099 R)
• M64: 17,673,642 km (0.083 R)
• M65: 17,839,097 km (0.108 R)
• M66: 18,071,572 km (0.059 R)
• M67: 18,472,495 km (0.025 R)
• M68: 18,606,834 km (0.061 R)
• M69: 18,944,027 km (0.113 R)
• M70: 19,419,449 km (0.101 R)
• M71: 19,795,837 km (0.099 R)
• M72: 20,555,645 km (0.11 R)
• M73: 20,729,777 km (0.103 R)
• M74: 21,430,793 km (0.118 R)
• M75: 22,389,565 km (0.113 R)
• M76: 22,532,730 km (0.057 R)
• M77: 23,726,073 km (0.069 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.5

Radius: 3.1

Gravity: 41.99 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.14 AU - 8.48 AU

Year: 13893 Days

Day: 18.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 87,964,851 km

• M1: 46,824 km (0.109 R)
• M2: 104,270 km (0.08 R)
• M3: 212,878 km (0.091 R)
• M4: 423,512 km (0.117 R)
• M5: 580,739 km (0.097 R)
• M6: 631,303 km (0.109 R)
• M7: 665,860 km (0.054 R)
• M8: 1,065,286 km (0.108 R)
• M9: 1,572,124 km (0.114 R)
• M10: 1,619,397 km (0.071 R)
• M11: 1,763,759 km (0.09 R)
• M12: 2,142,541 km (0.114 R)
• M13: 2,545,707 km (0.103 R)
• M14: 3,059,576 km (0.094 R)
• M15: 3,207,827 km (0.114 R)
• M16: 4,442,758 km (0.047 R)
• M17: 5,022,001 km (0.11 R)
• M18: 5,733,338 km (0.094 R)
• M19: 5,915,997 km (0.036 R)
• M20: 6,212,351 km (0.052 R)
• M21: 6,249,750 km (0.103 R)
• M22: 7,484,681 km (0.057 R)
• M23: 7,764,728 km (0.092 R)
• M24: 8,048,066 km (0.108 R)
• M25: 8,129,597 km (0.113 R)
• M26: 8,583,327 km (0.108 R)
• M27: 8,750,279 km (0.109 R)
• M28: 9,087,472 km (0.04 R)
• M29: 9,386,070 km (0.066 R)
• M30: 9,687,809 km (0.113 R)
• M31: 11,152,521 km (0.046 R)
• M32: 11,563,915 km (0.066 R)
• M33: 12,026,771 km (0.088 R)
• M34: 12,827,419 km (0.057 R)
• M35: 13,354,602 km (0.095 R)
• M36: 13,499,562 km (0.09 R)
• M37: 15,279,777 km (0.034 R)
• M38: 16,506,928 km (0.096 R)
• M39: 17,342,432 km (0.115 R)
• M40: 17,924,817 km (0.098 R)
• M41: 18,245,106 km (0.101 R)
• M42: 18,298,662 km (0.047 R)
• M43: 18,837,364 km (0.1 R)
• M44: 19,654,916 km (0.103 R)
• M45: 20,317,336 km (0.044 R)
• M46: 20,372,986 km (0.099 R)
• M47: 20,428,487 km (0.098 R)
• M48: 22,577,759 km (0.1 R)
• M49: 22,750,545 km (0.038 R)
• M50: 23,155,207 km (0.09 R)
• M51: 23,213,251 km (0.054 R)
• M52: 23,562,263 km (0.091 R)
• M53: 25,214,123 km (0.116 R)
• M54: 25,873,101 km (0.088 R)
• M55: 26,174,541 km (0.073 R)
• M56: 26,234,979 km (0.033 R)
• M57: 26,356,003 km (0.098 R)
• M58: 26,416,590 km (0.091 R)
• M59: 26,841,897 km (0.102 R)
• M60: 27,024,855 km (0.026 R)
• M61: 27,637,608 km (0.084 R)
• M62: 28,193,065 km (0.112 R)
• M63: 29,377,880 km (0.106 R)
• M64: 31,025,102 km (0.097 R)
• M65: 31,538,074 km (0.06 R)
• M66: 31,860,008 km (0.031 R)
• M67: 32,053,737 km (0.11 R)
• M68: 32,377,467 km (0.072 R)
• M69: 33,486,137 km (0.085 R)
• M70: 33,814,654 km (0.118 R)
• M71: 34,408,557 km (0.072 R)
• M72: 34,739,917 km (0.049 R)
• M73: 36,278,082 km (0.109 R)
• M74: 36,750,662 km (0.058 R)
• M75: 37,293,253 km (0.067 R)
• M76: 37,701,805 km (0.073 R)
• M77: 38,729,842 km (0.049 R)
• M78: 38,867,621 km (0.108 R)
• M79: 40,393,968 km (0.109 R)
• M80: 40,813,590 km (0.093 R)
• M81: 42,151,893 km (0.091 R)
• M82: 42,933,243 km (0.096 R)
• M83: 43,361,541 km (0.081 R)
• M84: 44,150,371 km (0.103 R)
• M85: 44,222,178 km (0.112 R)
• M86: 44,871,433 km (0.115 R)
• M87: 45,088,649 km (0.101 R)
• M88: 45,451,274 km (0.032 R)
• M89: 46,252,370 km (0.12 R)
• M90: 46,325,374 km (0.112 R)
• M91: 46,618,137 km (0.073 R)
• M92: 47,425,966 km (0.112 R)
• M93: 48,164,530 km (0.052 R)
• M94: 48,312,632 km (0.108 R)
• M95: 48,757,985 km (0.051 R)
• M96: 49,055,685 km (0.11 R)
• M97: 49,952,375 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 880.4

Radius: 3.2

Gravity: 85.98 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.92 AU - 10.9 AU

Year: 21929 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 87,964,851 km

• M1: 170,093 km (0.118 R)
• M2: 201,359 km (0.098 R)
• M3: 288,425 km (0.068 R)
• M4: 451,786 km (0.108 R)
• M5: 615,446 km (0.117 R)
• M6: 964,457 km (0.104 R)
• M7: 1,564,644 km (0.115 R)
• M8: 2,655,063 km (0.077 R)
• M9: 2,778,631 km (0.06 R)
• M10: 3,160,405 km (0.09 R)
• M11: 3,379,715 km (0.119 R)
• M12: 3,786,472 km (0.063 R)
• M13: 6,476,541 km (0.117 R)
• M14: 7,149,881 km (0.078 R)
• M15: 7,669,284 km (0.066 R)
• M16: 8,081,726 km (0.102 R)
• M17: 9,174,688 km (0.11 R)
• M18: 9,298,854 km (0.097 R)
• M19: 10,377,604 km (0.081 R)
• M20: 10,964,477 km (0.049 R)
• M21: 11,030,449 km (0.067 R)
• M22: 11,228,816 km (0.111 R)
• M23: 11,428,529 km (0.115 R)
• M24: 11,696,459 km (0.063 R)
• M25: 12,512,665 km (0.089 R)
• M26: 12,650,445 km (0.06 R)
• M27: 13,629,264 km (0.11 R)
• M28: 15,069,143 km (0.089 R)
• M29: 15,658,409 km (0.04 R)
• M30: 16,030,609 km (0.074 R)
• M31: 20,717,360 km (0.083 R)
• M32: 20,880,422 km (0.091 R)
• M33: 21,372,001 km (0.111 R)
• M34: 21,536,857 km (0.083 R)
• M35: 21,784,741 km (0.09 R)
• M36: 21,950,496 km (0.082 R)
• M37: 22,533,927 km (0.107 R)
• M38: 22,953,848 km (0.087 R)
• M39: 25,265,734 km (0.101 R)
• M40: 26,140,582 km (0.063 R)
• M41: 26,316,659 km (0.094 R)
• M42: 26,847,582 km (0.116 R)
• M43: 27,650,324 km (0.074 R)
• M44: 28,280,281 km (0.038 R)
• M45: 28,370,638 km (0.06 R)
• M46: 33,104,812 km (0.107 R)
• M47: 34,446,555 km (0.085 R)
• M48: 35,318,412 km (0.085 R)
• M49: 37,182,700 km (0.064 R)
• M50: 37,380,768 km (0.107 R)
• M51: 37,777,950 km (0.083 R)
• M52: 38,978,024 km (0.091 R)
• M53: 39,280,063 km (0.086 R)
• M54: 39,886,383 km (0.101 R)
• M55: 40,190,665 km (0.079 R)
• M56: 43,379,792 km (0.114 R)
• M57: 44,425,780 km (0.062 R)
• M58: 49,343,062 km (0.066 R)
• M59: 49,778,841 km (0.09 R)
• M60: 51,534,222 km (0.107 R)
• M61: 53,644,899 km (0.073 R)
• M62: 53,756,798 km (0.116 R)
• M63: 53,868,697 km (0.103 R)
• M64: 54,317,341 km (0.108 R)
• M65: 54,542,037 km (0.112 R)
• M66: 55,105,273 km (0.084 R)
• M67: 56,237,430 km (0.104 R)
• M68: 58,064,918 km (0.083 R)
• M69: 59,448,249 km (0.079 R)
• M70: 61,075,874 km (0.091 R)
• M71: 62,835,893 km (0.037 R)
• M72: 63,663,019 km (0.12 R)
• M73: 65,327,745 km (0.043 R)
• M74: 66,405,597 km (0.091 R)
• M75: 68,700,279 km (0.111 R)
• M76: 68,943,226 km (0.088 R)
• M77: 70,407,490 km (0.06 R)
• M78: 71,266,481 km (0.037 R)
• M79: 71,635,539 km (0.119 R)
• M80: 74,611,639 km (0.093 R)
• M81: 75,612,598 km (0.079 R)
• M82: 75,989,136 km (0.062 R)
• M83: 77,627,831 km (0.057 R)
• M84: 78,261,079 km (0.181 R)
• M85: 79,405,503 km (0.112 R)
• M86: 80,043,687 km (0.027 R)
• M87: 80,811,723 km (0.082 R)
• M88: 81,710,806 km (0.141 R)
• M89: 81,839,610 km (0.115 R)
• M90: 83,130,490 km (0.143 R)
• M91: 84,038,100 km (0.229 R)
• M92: 84,558,102 km (0.093 R)
• M93: 87,964,894 km (0.049 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 17,744 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit