🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.2

Radius: 9.7

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.61 AU - 0.85 AU

Year: 409 Days

Day: 14.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 52,959,348 km

• M1: 124,615 km (0.096 R)
• M2: 190,438 km (0.072 R)
• M3: 265,835 km (0.115 R)
• M4: 343,327 km (0.102 R)
• M5: 411,993 km (0.099 R)
• M6: 510,578 km (0.054 R)
• M7: 574,157 km (0.114 R)
• M8: 675,285 km (0.091 R)
• M9: 927,208 km (0.115 R)
• M10: 1,021,005 km (0.099 R)
• M11: 1,146,668 km (0.075 R)
• M12: 1,257,819 km (0.071 R)
• M13: 1,398,142 km (0.119 R)
• M14: 1,465,162 km (0.096 R)
• M15: 1,527,993 km (0.067 R)
• M16: 1,634,806 km (0.08 R)
• M17: 1,755,381 km (0.092 R)
• M18: 1,856,210 km (0.115 R)
• M19: 1,947,615 km (0.115 R)
• M20: 2,034,681 km (0.091 R)
• M21: 2,152,713 km (0.091 R)
• M22: 2,230,803 km (0.078 R)
• M23: 2,315,925 km (0.117 R)
• M24: 2,451,909 km (0.12 R)
• M25: 2,527,306 km (0.12 R)
• M26: 2,719,091 km (0.102 R)
• M27: 2,803,763 km (0.111 R)
• M28: 2,942,291 km (0.097 R)
• M29: 3,015,743 km (0.086 R)
• M30: 3,157,861 km (0.112 R)
• M31: 3,226,377 km (0.104 R)
• M32: 3,295,342 km (0.111 R)
• M33: 3,413,674 km (0.117 R)
• M34: 3,491,166 km (0.086 R)
• M35: 3,770,166 km (0.079 R)
• M36: 4,213,723 km (0.107 R)
• M37: 4,319,639 km (0.099 R)
• M38: 4,388,304 km (0.105 R)
• M39: 4,457,119 km (0.113 R)
• M40: 4,619,433 km (0.066 R)
• M41: 4,957,823 km (0.087 R)
• M42: 5,394,200 km (0.056 R)
• M43: 5,525,996 km (0.073 R)
• M44: 5,625,478 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.7

Radius: 12.2

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.05 AU - 1.07 AU

Year: 716 Days

Day: 7.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 52,959,348 km

• M1: 164,558 km (0.101 R)
• M2: 279,748 km (0.096 R)
• M3: 360,232 km (0.113 R)
• M4: 489,035 km (0.032 R)
• M5: 565,031 km (0.083 R)
• M6: 801,545 km (0.119 R)
• M7: 937,829 km (0.092 R)
• M8: 1,059,751 km (0.081 R)
• M9: 1,152,053 km (0.109 R)
• M10: 1,253,331 km (0.09 R)
• M11: 1,339,200 km (0.102 R)
• M12: 1,439,880 km (0.065 R)
• M13: 1,549,834 km (0.071 R)
• M14: 1,629,121 km (0.07 R)
• M15: 1,799,214 km (0.043 R)
• M16: 1,953,748 km (0.091 R)
• M17: 2,032,736 km (0.036 R)
• M18: 2,112,920 km (0.114 R)
• M19: 2,329,538 km (0.081 R)
• M20: 2,429,021 km (0.07 R)
• M21: 2,616,616 km (0.066 R)
• M22: 2,865,996 km (0.106 R)
• M23: 2,972,958 km (0.101 R)
• M24: 3,199,450 km (0.065 R)
• M25: 3,319,278 km (0.042 R)
• M26: 3,572,098 km (0.113 R)
• M27: 3,651,834 km (0.034 R)
• M28: 3,759,245 km (0.118 R)
• M29: 4,013,860 km (0.101 R)
• M30: 4,189,788 km (0.061 R)
• M31: 4,283,585 km (0.12 R)
• M32: 4,694,531 km (0.08 R)
• M33: 4,782,046 km (0.093 R)
• M34: 4,978,767 km (0.081 R)
• M35: 5,108,169 km (0.082 R)
• M36: 5,188,353 km (0.09 R)
• M37: 5,279,010 km (0.057 R)
• M38: 5,451,795 km (0.108 R)
• M39: 5,585,237 km (0.061 R)
• M40: 5,823,845 km (0.097 R)
• M41: 6,034,180 km (0.087 R)
• M42: 6,161,637 km (0.064 R)
• M43: 6,944,932 km (0.117 R)
• M44: 7,045,013 km (0.05 R)
• M45: 7,224,380 km (0.107 R)
• M46: 7,507,420 km (0.095 R)
• M47: 7,852,093 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.5

Radius: 10

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.64 AU - 2.3 AU

Year: 1814 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 52,959,348 km

• M1: 145,559 km (0.054 R)
• M2: 226,641 km (0.109 R)
• M3: 341,233 km (0.081 R)
• M4: 458,368 km (0.115 R)
• M5: 522,845 km (0.099 R)
• M6: 616,792 km (0.057 R)
• M7: 874,998 km (0.113 R)
• M8: 966,253 km (0.085 R)
• M9: 1,373,159 km (0.083 R)
• M10: 1,544,748 km (0.113 R)
• M11: 1,879,548 km (0.12 R)
• M12: 1,959,283 km (0.089 R)
• M13: 2,122,345 km (0.114 R)
• M14: 2,205,521 km (0.078 R)
• M15: 2,472,853 km (0.083 R)
• M16: 2,571,737 km (0.116 R)
• M17: 2,957,101 km (0.101 R)
• M18: 3,168,632 km (0.106 R)
• M19: 3,264,226 km (0.033 R)
• M20: 3,372,983 km (0.077 R)
• M21: 4,037,946 km (0.109 R)
• M22: 4,154,782 km (0.104 R)
• M23: 4,286,129 km (0.086 R)
• M24: 4,352,251 km (0.107 R)
• M25: 4,566,325 km (0.096 R)
• M26: 4,647,557 km (0.116 R)
• M27: 4,921,620 km (0.07 R)
• M28: 5,004,797 km (0.038 R)
• M29: 5,158,733 km (0.109 R)
• M30: 5,314,165 km (0.065 R)
• M31: 5,471,243 km (0.063 R)
• M32: 5,557,561 km (0.097 R)
• M33: 5,804,547 km (0.067 R)
• M34: 6,114,813 km (0.081 R)
• M35: 6,294,480 km (0.064 R)
• M36: 6,536,829 km (0.067 R)
• M37: 6,736,093 km (0.075 R)
• M38: 6,999,535 km (0.094 R)
• M39: 7,093,333 km (0.102 R)
• M40: 7,457,005 km (0.105 R)
• M41: 7,568,755 km (0.077 R)
• M42: 7,649,089 km (0.067 R)
• M43: 7,875,281 km (0.098 R)
• M44: 7,972,968 km (0.117 R)
• M45: 8,517,056 km (0.115 R)
• M46: 8,634,041 km (0.103 R)
• M47: 8,988,289 km (0.085 R)
• M48: 9,398,935 km (0.117 R)
• M49: 9,885,726 km (0.112 R)
• M50: 10,008,846 km (0.12 R)
• M51: 10,096,959 km (0.056 R)
• M52: 10,167,718 km (0.085 R)
• M53: 10,380,895 km (0.111 R)
• M54: 10,577,617 km (0.115 R)
• M55: 10,793,636 km (0.041 R)
• M56: 11,783,675 km (0.098 R)
• M57: 11,970,223 km (0.039 R)
• M58: 12,157,819 km (0.071 R)
• M59: 12,270,765 km (0.109 R)
• M60: 12,879,329 km (0.085 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 436.5

Radius: 4.2

Gravity: 24.74 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 6.09 AU - 6.15 AU

Year: 9932 Days

Day: 22.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 52,959,348 km

• M1: 53,556 km (0.063 R)
• M2: 99,483 km (0.038 R)
• M3: 176,974 km (0.111 R)
• M4: 234,121 km (0.053 R)
• M5: 286,929 km (0.108 R)
• M6: 332,406 km (0.049 R)
• M7: 443,707 km (0.1 R)
• M8: 552,615 km (0.031 R)
• M9: 779,405 km (0.053 R)
• M10: 877,691 km (0.109 R)
• M11: 1,068,428 km (0.113 R)
• M12: 1,159,383 km (0.04 R)
• M13: 1,196,633 km (0.08 R)
• M14: 1,349,074 km (0.105 R)
• M15: 1,609,972 km (0.108 R)
• M16: 1,651,411 km (0.113 R)
• M17: 1,886,280 km (0.12 R)
• M18: 2,269,848 km (0.109 R)
• M19: 2,339,860 km (0.051 R)
• M20: 2,530,448 km (0.07 R)
• M21: 2,627,687 km (0.067 R)
• M22: 2,901,301 km (0.067 R)
• M23: 3,236,251 km (0.036 R)
• M24: 3,368,346 km (0.114 R)
• M25: 3,665,297 km (0.064 R)
• M26: 4,168,993 km (0.105 R)
• M27: 4,283,885 km (0.11 R)
• M28: 4,399,823 km (0.082 R)
• M29: 4,516,659 km (0.095 R)
• M30: 5,741,716 km (0.107 R)
• M31: 6,193,352 km (0.087 R)
• M32: 6,756,887 km (0.078 R)
• M33: 6,824,206 km (0.1 R)
• M34: 6,858,015 km (0.084 R)
• M35: 7,096,025 km (0.113 R)
• M36: 7,233,207 km (0.119 R)
• M37: 7,475,555 km (0.062 R)
• M38: 7,615,130 km (0.079 R)
• M39: 8,003,486 km (0.089 R)
• M40: 8,762,695 km (0.09 R)
• M41: 9,544,793 km (0.109 R)
• M42: 10,700,137 km (0.079 R)
• M43: 10,936,352 km (0.091 R)
• M44: 12,020,937 km (0.116 R)
• M45: 12,225,587 km (0.117 R)
• M46: 12,804,531 km (0.09 R)
• M47: 14,204,168 km (0.079 R)
• M48: 14,420,487 km (0.086 R)
• M49: 15,075,875 km (0.075 R)
• M50: 15,208,120 km (0.065 R)
• M51: 15,296,532 km (0.12 R)
• M52: 15,340,663 km (0.067 R)
• M53: 15,875,027 km (0.118 R)
• M54: 16,099,424 km (0.051 R)
• M55: 16,916,078 km (0.098 R)
• M56: 17,375,643 km (0.044 R)
• M57: 17,932,446 km (0.029 R)
• M58: 18,589,331 km (0.072 R)
• M59: 19,589,542 km (0.091 R)
• M60: 20,900,917 km (0.086 R)
• M61: 21,245,590 km (0.088 R)
• M62: 22,290,532 km (0.117 R)
• M63: 22,592,270 km (0.083 R)
• M64: 22,743,514 km (0.106 R)
• M65: 22,794,078 km (0.082 R)
• M66: 23,403,240 km (0.098 R)
• M67: 24,378,619 km (0.113 R)
• M68: 24,689,333 km (0.071 R)
• M69: 24,845,214 km (0.102 R)
• M70: 24,897,274 km (0.082 R)
• M71: 25,053,604 km (0.089 R)
• M72: 25,262,443 km (0.063 R)
• M73: 26,741,068 km (0.104 R)
• M74: 26,847,731 km (0.112 R)
• M75: 27,115,063 km (0.113 R)
• M76: 27,436,997 km (0.087 R)
• M77: 28,138,911 km (0.101 R)
• M78: 28,737,452 km (0.045 R)
• M79: 29,065,819 km (0.071 R)
• M80: 29,670,793 km (0.084 R)
• M81: 30,893,157 km (0.09 R)
• M82: 31,341,801 km (0.104 R)
• M83: 32,871,589 km (0.092 R)
• M84: 33,272,212 km (0.103 R)
• M85: 33,329,508 km (0.114 R)
• M86: 33,386,954 km (0.069 R)
• M87: 33,847,266 km (0.084 R)
• M88: 34,890,562 km (0.074 R)
• M89: 34,948,905 km (0.114 R)
• M90: 35,592,026 km (0.072 R)
• M91: 35,709,461 km (0.11 R)
• M92: 36,239,187 km (0.104 R)
• M93: 36,534,493 km (0.101 R)
• M94: 40,202,184 km (0.076 R)
• M95: 40,998,792 km (0.085 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.3

Radius: 5.8

Gravity: 19.81 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.5 AU - 10.56 AU

Year: 16343 Days

Day: 21.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 52,959,348 km

• M1: 258,356 km (0.054 R)
• M2: 316,848 km (0.068 R)
• M3: 721,511 km (0.057 R)
• M4: 967,898 km (0.116 R)
• M5: 1,039,556 km (0.084 R)
• M6: 1,137,841 km (0.043 R)
• M7: 1,703,321 km (0.114 R)
• M8: 2,153,611 km (0.058 R)
• M9: 2,605,696 km (0.059 R)
• M10: 3,520,038 km (0.067 R)
• M11: 3,706,437 km (0.079 R)
• M12: 4,363,919 km (0.025 R)
• M13: 4,483,747 km (0.11 R)
• M14: 4,849,514 km (0.087 R)
• M15: 5,871,417 km (0.04 R)
• M16: 6,092,373 km (0.084 R)
• M17: 6,451,707 km (0.084 R)
• M18: 6,725,771 km (0.114 R)
• M19: 7,097,073 km (0.085 R)
• M20: 7,379,962 km (0.077 R)
• M21: 7,570,699 km (0.075 R)
• M22: 8,054,349 km (0.049 R)
• M23: 9,102,282 km (0.088 R)
• M24: 9,306,783 km (0.1 R)
• M25: 9,616,301 km (0.073 R)
• M26: 10,404,831 km (0.092 R)
• M27: 10,511,494 km (0.095 R)
• M28: 10,565,050 km (0.06 R)
• M29: 11,598,473 km (0.115 R)
• M30: 12,323,873 km (0.074 R)
• M31: 12,777,603 km (0.085 R)
• M32: 13,179,124 km (0.099 R)
• M33: 13,236,868 km (0.088 R)
• M34: 13,468,446 km (0.086 R)
• M35: 15,248,062 km (0.104 R)
• M36: 15,551,746 km (0.104 R)
• M37: 16,599,230 km (0.084 R)
• M38: 17,226,045 km (0.065 R)
• M39: 17,605,874 km (0.076 R)
• M40: 18,502,713 km (0.095 R)
• M41: 20,273,952 km (0.093 R)
• M42: 20,741,894 km (0.104 R)
• M43: 22,030,082 km (0.096 R)
• M44: 22,098,597 km (0.068 R)
• M45: 22,167,113 km (0.085 R)
• M46: 22,718,381 km (0.083 R)
• M47: 23,553,586 km (0.057 R)
• M48: 24,328,055 km (0.095 R)
• M49: 24,398,814 km (0.092 R)
• M50: 26,555,118 km (0.072 R)
• M51: 26,847,283 km (0.105 R)
• M52: 27,067,042 km (0.101 R)
• M53: 27,656,009 km (0.082 R)
• M54: 28,026,263 km (0.096 R)
• M55: 28,771,710 km (0.058 R)
• M56: 29,372,644 km (0.119 R)
• M57: 30,663,524 km (0.096 R)
• M58: 33,379,025 km (0.117 R)
• M59: 33,536,402 km (0.118 R)
• M60: 35,044,797 km (0.09 R)
• M61: 35,284,902 km (0.108 R)
• M62: 36,008,806 km (0.04 R)
• M63: 37,225,934 km (0.053 R)
• M64: 37,470,975 km (0.114 R)
• M65: 38,952,593 km (0.046 R)
• M66: 39,035,470 km (0.116 R)
• M67: 39,533,930 km (0.113 R)
• M68: 39,867,384 km (0.111 R)
• M69: 41,042,026 km (0.11 R)
• M70: 41,972,675 km (0.09 R)
• M71: 42,996,074 km (0.102 R)
• M72: 43,338,952 km (0.083 R)
• M73: 44,286,804 km (0.116 R)
• M74: 46,817,850 km (0.032 R)
• M75: 46,994,226 km (0.086 R)
• M76: 47,612,963 km (0.051 R)
• M77: 47,701,525 km (0.098 R)
• M78: 47,967,660 km (0.12 R)
• M79: 48,679,895 km (0.091 R)
• M80: 49,305,962 km (0.072 R)
• M81: 49,485,330 km (0.117 R)
• M82: 50,746,889 km (0.073 R)
• M83: 51,563,544 km (0.069 R)
• M84: 51,745,604 km (0.076 R)
• M85: 52,659,049 km (0.039 R)
• M86: 52,842,306 km (0.057 R)
• M87: 53,209,719 km (0.105 R)
• M88: 54,224,142 km (0.047 R)
• M89: 55,058,898 km (0.045 R)
• M90: 57,305,708 km (0.114 R)
• M91: 57,494,202 km (0.075 R)
• M92: 59,964,511 km (0.118 R)
• M93: 60,155,847 km (0.119 R)
• M94: 60,635,458 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.3

Radius: 3.6

Gravity: 20.01 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 9.27 AU - 9.51 AU

Year: 18876 Days

Day: 22.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 52,959,348 km

• M1: 123,269 km (0.112 R)
• M2: 205,847 km (0.055 R)
• M3: 229,334 km (0.086 R)
• M4: 764,894 km (0.054 R)
• M5: 1,024,745 km (0.116 R)
• M6: 1,197,531 km (0.085 R)
• M7: 1,333,067 km (0.034 R)
• M8: 1,618,649 km (0.097 R)
• M9: 2,876,169 km (0.119 R)
• M10: 3,118,816 km (0.079 R)
• M11: 3,656,022 km (0.11 R)
• M12: 3,918,567 km (0.111 R)
• M13: 4,052,158 km (0.057 R)
• M14: 4,358,085 km (0.08 R)
• M15: 4,636,337 km (0.107 R)
• M16: 4,992,231 km (0.102 R)
• M17: 5,064,337 km (0.032 R)
• M18: 5,209,895 km (0.034 R)
• M19: 5,283,198 km (0.072 R)
• M20: 5,393,602 km (0.109 R)
• M21: 5,505,052 km (0.076 R)
• M22: 5,542,302 km (0.074 R)
• M23: 5,957,735 km (0.113 R)
• M24: 7,059,823 km (0.11 R)
• M25: 7,592,541 km (0.072 R)
• M26: 7,675,717 km (0.113 R)
• M27: 7,842,668 km (0.099 R)
• M28: 8,308,367 km (0.07 R)
• M29: 8,351,152 km (0.118 R)
• M30: 9,623,332 km (0.066 R)
• M31: 9,984,760 km (0.062 R)
• M32: 10,212,897 km (0.093 R)
• M33: 10,907,630 km (0.095 R)
• M34: 11,331,740 km (0.091 R)
• M35: 11,426,734 km (0.062 R)
• M36: 12,636,083 km (0.091 R)
• M37: 13,733,533 km (0.111 R)
• M38: 13,936,388 km (0.059 R)
• M39: 14,038,115 km (0.113 R)
• M40: 14,602,248 km (0.064 R)
• M41: 14,653,859 km (0.108 R)
• M42: 14,705,620 km (0.091 R)
• M43: 16,499,598 km (0.101 R)
• M44: 17,094,698 km (0.025 R)
• M45: 17,422,168 km (0.112 R)
• M46: 17,972,688 km (0.076 R)
• M47: 18,361,343 km (0.103 R)
• M48: 18,977,836 km (0.102 R)
• M49: 20,983,944 km (0.098 R)
• M50: 21,451,736 km (0.12 R)
• M51: 21,804,937 km (0.062 R)
• M52: 22,397,943 km (0.047 R)
• M53: 23,297,176 km (0.088 R)
• M54: 23,903,197 km (0.115 R)
• M55: 24,760,243 km (0.054 R)
• M56: 24,945,295 km (0.115 R)
• M57: 25,254,664 km (0.119 R)
• M58: 25,689,844 km (0.075 R)
• M59: 26,441,573 km (0.102 R)
• M60: 26,567,535 km (0.12 R)
• M61: 27,200,483 km (0.119 R)
• M62: 28,416,864 km (0.051 R)
• M63: 31,167,669 km (0.073 R)
• M64: 31,768,155 km (0.102 R)
• M65: 32,777,342 km (0.111 R)
• M66: 33,116,032 km (0.102 R)
• M67: 33,251,867 km (0.074 R)
• M68: 33,728,785 km (0.112 R)
• M69: 34,482,608 km (0.107 R)
• M70: 36,216,448 km (0.08 R)
• M71: 36,777,141 km (0.1 R)
• M72: 37,199,605 km (0.088 R)
• M73: 37,270,215 km (0.1 R)
• M74: 37,836,443 km (0.073 R)
• M75: 38,191,738 km (0.113 R)
• M76: 38,762,454 km (0.076 R)
• M77: 39,120,591 km (0.119 R)
• M78: 39,192,398 km (0.111 R)
• M79: 39,768,051 km (0.083 R)
• M80: 42,025,183 km (0.062 R)
• M81: 43,058,007 km (0.096 R)
• M82: 43,206,259 km (0.084 R)
• M83: 43,429,010 km (0.101 R)
• M84: 45,224,035 km (0.039 R)
• M85: 45,299,282 km (0.1 R)
• M86: 45,752,115 km (0.059 R)
• M87: 47,195,884 km (0.065 R)
• M88: 47,348,773 km (0.112 R)
• M89: 48,192,206 km (0.055 R)
• M90: 48,654,463 km (0.119 R)
• M91: 49,816,390 km (0.075 R)
• M92: 51,065,832 km (0.083 R)
• M93: 51,144,370 km (0.039 R)
• M94: 51,694,442 km (0.069 R)
• M95: 52,167,620 km (0.071 R)
• M96: 52,325,595 km (0.056 R)
• M97: 52,563,007 km (0.106 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 16,125 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit