🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.72 AU - 2.08 AU

Year: 992 Days

Day: 13.3 Hours

Environment

Temp: -69 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,235,067 km

• M1: 999,912 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.92 AU - 3 AU

Year: 1461 Days

Day: 31.3 Hours

Environment

Temp: -95 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,235,067 km

• M1: 2,198,191 km (0.072 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.09 AU - 3.09 AU

Year: 1579 Days

Day: 16 Hours

Environment

Temp: -107 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.16 AU - 3.16 AU

Year: 2128 Days

Day: 13.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.8

Radius: 10.8

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.85 AU - 6.29 AU

Year: 4979 Days

Day: 5 Hours

Environment

Temp: -145 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 56,235,067 km

• M1: 176,974 km (0.108 R)
• M2: 475,871 km (0.104 R)
• M3: 685,158 km (0.066 R)
• M4: 801,545 km (0.103 R)
• M5: 897,138 km (0.088 R)
• M6: 1,026,092 km (0.091 R)
• M7: 1,368,222 km (0.084 R)
• M8: 1,604,587 km (0.091 R)
• M9: 1,835,865 km (0.115 R)
• M10: 1,983,817 km (0.115 R)
• M11: 3,238,046 km (0.118 R)
• M12: 3,463,490 km (0.071 R)
• M13: 3,624,457 km (0.116 R)
• M14: 3,834,941 km (0.098 R)
• M15: 4,049,465 km (0.088 R)
• M16: 4,219,258 km (0.072 R)
• M17: 4,615,992 km (0.025 R)
• M18: 4,717,120 km (0.049 R)
• M19: 4,895,740 km (0.11 R)
• M20: 4,973,082 km (0.033 R)
• M21: 5,154,993 km (0.034 R)
• M22: 5,686,963 km (0.102 R)
• M23: 5,877,252 km (0.038 R)
• M24: 6,014,582 km (0.064 R)
• M25: 6,264,411 km (0.12 R)
• M26: 6,376,460 km (0.059 R)
• M27: 6,461,132 km (0.058 R)
• M28: 8,321,382 km (0.087 R)
• M29: 8,599,933 km (0.118 R)
• M30: 9,102,881 km (0.108 R)
• M31: 9,712,343 km (0.1 R)
• M32: 9,809,880 km (0.12 R)
• M33: 10,202,874 km (0.096 R)
• M34: 10,567,893 km (0.038 R)
• M35: 10,970,760 km (0.109 R)
• M36: 11,242,280 km (0.086 R)
• M37: 11,481,637 km (0.099 R)
• M38: 11,550,302 km (0.104 R)
• M39: 12,315,196 km (0.099 R)
• M40: 12,491,273 km (0.04 R)
• M41: 12,561,883 km (0.056 R)
• M42: 13,060,343 km (0.086 R)
• M43: 13,420,425 km (0.113 R)
• M44: 13,893,453 km (0.081 R)
• M45: 14,224,065 km (0.09 R)
• M46: 14,334,917 km (0.114 R)
• M47: 15,043,263 km (0.115 R)
• M48: 15,307,153 km (0.062 R)
• M49: 16,883,316 km (0.106 R)
• M50: 18,029,087 km (0.11 R)
• M51: 18,229,099 km (0.089 R)
• M52: 18,470,251 km (0.112 R)
• M53: 18,671,909 km (0.103 R)
• M54: 18,996,237 km (0.068 R)
• M55: 19,404,190 km (0.096 R)
• M56: 20,353,538 km (0.118 R)
• M57: 20,896,728 km (0.061 R)
• M58: 21,106,913 km (0.109 R)
• M59: 21,233,473 km (0.1 R)
• M60: 21,826,928 km (0.08 R)
• M61: 22,598,105 km (0.1 R)
• M62: 23,073,676 km (0.097 R)
• M63: 23,203,976 km (0.116 R)
• M64: 23,596,371 km (0.093 R)
• M65: 24,122,956 km (0.092 R)
• M66: 24,255,200 km (0.057 R)
• M67: 24,742,141 km (0.091 R)
• M68: 25,009,174 km (0.066 R)
• M69: 25,143,064 km (0.115 R)
• M70: 25,366,563 km (0.082 R)
• M71: 26,813,474 km (0.118 R)
• M72: 27,041,909 km (0.064 R)
• M73: 27,316,870 km (0.106 R)
• M74: 27,731,256 km (0.107 R)
• M75: 28,846,209 km (0.067 R)
• M76: 30,023,096 km (0.037 R)
• M77: 31,215,690 km (0.116 R)
• M78: 32,569,700 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.2

Radius: 13.9

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.49 AU - 11.21 AU

Year: 11709 Days

Day: 5.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 56,235,067 km

• M1: 174,431 km (0.101 R)
• M2: 509,979 km (0.079 R)
• M3: 868,864 km (0.106 R)
• M4: 1,012,628 km (0.099 R)
• M5: 1,244,505 km (0.09 R)
• M6: 1,692,999 km (0.056 R)
• M7: 1,830,480 km (0.116 R)
• M8: 1,924,277 km (0.099 R)
• M9: 2,190,861 km (0.064 R)
• M10: 2,869,287 km (0.109 R)
• M11: 3,175,364 km (0.112 R)
• M12: 3,289,358 km (0.111 R)
• M13: 3,433,870 km (0.113 R)
• M14: 3,759,394 km (0.067 R)
• M15: 4,345,369 km (0.109 R)
• M16: 4,730,285 km (0.085 R)
• M17: 6,307,046 km (0.092 R)
• M18: 6,669,821 km (0.12 R)
• M19: 6,928,027 km (0.087 R)
• M20: 7,607,052 km (0.114 R)
• M21: 7,915,672 km (0.08 R)
• M22: 8,189,137 km (0.101 R)
• M23: 8,625,215 km (0.107 R)
• M24: 8,906,758 km (0.08 R)
• M25: 9,028,381 km (0.062 R)
• M26: 9,686,163 km (0.074 R)
• M27: 10,402,138 km (0.074 R)
• M28: 10,530,344 km (0.066 R)
• M29: 11,048,102 km (0.084 R)
• M30: 11,751,511 km (0.081 R)
• M31: 12,018,992 km (0.088 R)
• M32: 12,651,193 km (0.082 R)
• M33: 13,994,881 km (0.095 R)
• M34: 14,421,085 km (0.086 R)
• M35: 14,755,586 km (0.1 R)
• M36: 14,899,798 km (0.105 R)
• M37: 16,020,436 km (0.099 R)
• M38: 16,168,687 km (0.044 R)
• M39: 16,866,262 km (0.112 R)
• M40: 17,522,698 km (0.037 R)
• M41: 17,624,574 km (0.049 R)
• M42: 18,600,999 km (0.108 R)
• M43: 19,174,408 km (0.084 R)
• M44: 19,384,443 km (0.05 R)
• M45: 19,489,760 km (0.109 R)
• M46: 20,445,691 km (0.088 R)
• M47: 20,552,803 km (0.063 R)
• M48: 20,713,920 km (0.111 R)
• M49: 21,525,787 km (0.103 R)
• M50: 21,798,803 km (0.109 R)
• M51: 22,072,867 km (0.088 R)
• M52: 22,182,821 km (0.074 R)
• M53: 23,180,639 km (0.113 R)
• M54: 23,741,332 km (0.093 R)
• M55: 24,476,904 km (0.114 R)
• M56: 25,392,593 km (0.055 R)
• M57: 25,565,528 km (0.078 R)
• M58: 26,377,695 km (0.079 R)
• M59: 26,904,279 km (0.109 R)
• M60: 27,198,389 km (0.086 R)
• M61: 27,611,877 km (0.079 R)
• M62: 28,684,793 km (0.111 R)
• M63: 29,468,088 km (0.073 R)
• M64: 29,589,262 km (0.105 R)
• M65: 30,075,455 km (0.107 R)
• M66: 30,748,346 km (0.045 R)
• M67: 31,922,241 km (0.078 R)
• M68: 33,110,796 km (0.048 R)
• M69: 34,059,396 km (0.087 R)
• M70: 34,505,048 km (0.048 R)
• M71: 34,760,711 km (0.117 R)
• M72: 35,531,140 km (0.112 R)
• M73: 36,762,630 km (0.052 R)
• M74: 37,154,426 km (0.101 R)
• M75: 37,416,522 km (0.069 R)
• M76: 39,001,212 km (0.061 R)
• M77: 39,334,067 km (0.116 R)
• M78: 39,734,840 km (0.082 R)
• M79: 41,283,477 km (0.102 R)
• M80: 42,099,384 km (0.074 R)
• M81: 42,235,817 km (0.094 R)
• M82: 43,816,169 km (0.096 R)
• M83: 44,439,693 km (0.06 R)
• M84: 45,205,933 km (0.074 R)
• M85: 47,175,988 km (0.064 R)
• M86: 47,530,684 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.4

Radius: 14.6

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 9.23 AU - 11.37 AU

Year: 12520 Days

Day: 5.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 56,235,067 km

• M1: 256,112 km (0.053 R)
• M2: 616,343 km (0.096 R)
• M3: 742,604 km (0.116 R)
• M4: 936,333 km (0.079 R)
• M5: 1,609,972 km (0.058 R)
• M6: 1,768,396 km (0.107 R)
• M7: 1,919,341 km (0.065 R)
• M8: 2,127,880 km (0.12 R)
• M9: 2,357,662 km (0.075 R)
• M10: 2,769,057 km (0.103 R)
• M11: 2,886,641 km (0.108 R)
• M12: 3,484,284 km (0.066 R)
• M13: 3,854,988 km (0.104 R)
• M14: 4,204,747 km (0.082 R)
• M15: 4,634,542 km (0.092 R)
• M16: 5,425,765 km (0.061 R)
• M17: 5,536,916 km (0.114 R)
• M18: 5,780,462 km (0.112 R)
• M19: 5,875,157 km (0.049 R)
• M20: 6,375,562 km (0.108 R)
• M21: 6,750,155 km (0.075 R)
• M22: 7,091,388 km (0.076 R)
• M23: 7,438,455 km (0.062 R)
• M24: 7,770,113 km (0.112 R)
• M25: 7,916,719 km (0.05 R)
• M26: 8,362,371 km (0.071 R)
• M27: 8,685,652 km (0.095 R)
• M28: 9,123,226 km (0.066 R)
• M29: 9,523,251 km (0.074 R)
• M30: 10,340,504 km (0.1 R)
• M31: 10,711,058 km (0.085 R)
• M32: 10,968,366 km (0.083 R)
• M33: 11,322,464 km (0.075 R)
• M34: 11,512,903 km (0.115 R)
• M35: 12,530,168 km (0.085 R)
• M36: 14,443,525 km (0.101 R)
• M37: 15,513,299 km (0.118 R)
• M38: 15,724,980 km (0.092 R)
• M39: 16,689,587 km (0.068 R)
• M40: 17,700,869 km (0.106 R)
• M41: 17,949,949 km (0.098 R)
• M42: 18,788,445 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.9

Radius: 8.6

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 10.09 AU - 12.23 AU

Year: 14120 Days

Day: 11.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 146 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 56,235,067 km

• M1: 441,763 km (0.119 R)
• M2: 924,066 km (0.043 R)
• M3: 1,076,357 km (0.051 R)
• M4: 1,332,618 km (0.099 R)
• M5: 1,405,921 km (0.032 R)
• M6: 1,531,134 km (0.106 R)
• M7: 2,068,939 km (0.116 R)
• M8: 2,754,546 km (0.107 R)
• M9: 3,505,377 km (0.092 R)
• M10: 3,573,594 km (0.101 R)
• M11: 4,171,088 km (0.069 R)
• M12: 5,028,284 km (0.1 R)
• M13: 5,144,072 km (0.115 R)
• M14: 5,496,824 km (0.103 R)
• M15: 5,576,261 km (0.118 R)
• M16: 6,061,107 km (0.103 R)
• M17: 6,267,104 km (0.109 R)
• M18: 6,517,381 km (0.107 R)
• M19: 6,686,127 km (0.07 R)
• M20: 6,770,949 km (0.092 R)
• M21: 7,071,043 km (0.097 R)
• M22: 8,086,962 km (0.1 R)
• M23: 8,451,083 km (0.081 R)
• M24: 10,498,180 km (0.113 R)
• M25: 10,646,581 km (0.089 R)
• M26: 11,398,610 km (0.102 R)
• M27: 11,551,050 km (0.108 R)
• M28: 11,858,025 km (0.082 R)
• M29: 12,323,573 km (0.114 R)
• M30: 12,532,412 km (0.06 R)
• M31: 13,540,253 km (0.114 R)
• M32: 13,701,819 km (0.038 R)
• M33: 14,244,859 km (0.025 R)
• M34: 14,573,974 km (0.044 R)
• M35: 14,961,283 km (0.114 R)
• M36: 15,520,330 km (0.044 R)
• M37: 16,143,256 km (0.107 R)
• M38: 16,371,841 km (0.048 R)
• M39: 16,429,137 km (0.043 R)
• M40: 16,601,474 km (0.082 R)
• M41: 18,179,133 km (0.09 R)
• M42: 18,775,580 km (0.069 R)
• M43: 19,136,560 km (0.112 R)
• M44: 21,475,223 km (0.09 R)
• M45: 22,677,990 km (0.067 R)
• M46: 23,513,494 km (0.054 R)
• M47: 23,707,672 km (0.104 R)
• M48: 23,772,598 km (0.12 R)
• M49: 23,837,523 km (0.117 R)
• M50: 23,902,449 km (0.116 R)
• M51: 24,032,599 km (0.111 R)
• M52: 24,097,823 km (0.115 R)
• M53: 25,016,205 km (0.026 R)
• M54: 26,415,394 km (0.06 R)
• M55: 27,022,611 km (0.096 R)
• M56: 27,566,400 km (0.076 R)
• M57: 27,634,616 km (0.096 R)
• M58: 27,976,597 km (0.09 R)
• M59: 29,637,433 km (0.115 R)
• M60: 29,847,318 km (0.084 R)
• M61: 30,479,818 km (0.11 R)
• M62: 31,187,715 km (0.119 R)
• M63: 33,927,151 km (0.068 R)
• M64: 34,440,123 km (0.077 R)
• M65: 34,734,382 km (0.112 R)
• M66: 37,043,275 km (0.087 R)
• M67: 37,874,441 km (0.074 R)
• M68: 38,254,270 km (0.118 R)
• M69: 40,792,647 km (0.115 R)
• M70: 41,494,261 km (0.086 R)
• M71: 41,885,908 km (0.063 R)
• M72: 42,751,631 km (0.092 R)
• M73: 42,988,743 km (0.055 R)
• M74: 43,147,018 km (0.098 R)
• M75: 43,305,592 km (0.113 R)
• M76: 43,464,315 km (0.106 R)
• M77: 44,340,659 km (0.04 R)
• M78: 45,222,988 km (0.1 R)
• M79: 45,949,136 km (0.085 R)
• M80: 46,030,068 km (0.108 R)
• M81: 46,354,247 km (0.071 R)
• M82: 46,516,560 km (0.096 R)
• M83: 47,086,379 km (0.116 R)
• M84: 47,658,441 km (0.109 R)
• M85: 48,809,447 km (0.115 R)
• M86: 49,222,786 km (0.089 R)
• M87: 50,302,882 km (0.104 R)
• M88: 50,636,785 km (0.116 R)
• M89: 50,720,410 km (0.095 R)
• M90: 50,971,435 km (0.095 R)
• M91: 53,164,390 km (0.082 R)
• M92: 53,249,362 km (0.091 R)
• M93: 53,930,631 km (0.084 R)
• M94: 54,186,892 km (0.045 R)
• M95: 54,614,891 km (0.054 R)
• M96: 54,958,069 km (0.076 R)
• M97: 55,129,807 km (0.107 R)
• M98: 58,253,710 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.4

Radius: 3.7

Gravity: 28.22 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 9.49 AU - 15.69 AU

Year: 16919 Days

Day: 15.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 56,235,067 km

• M1: 55,202 km (0.103 R)
• M2: 78,988 km (0.111 R)
• M3: 110,852 km (0.071 R)
• M4: 193,131 km (0.112 R)
• M5: 242,049 km (0.116 R)
• M6: 382,821 km (0.106 R)
• M7: 512,522 km (0.1 R)
• M8: 600,336 km (0.087 R)
• M9: 1,463,067 km (0.078 R)
• M10: 1,796,222 km (0.089 R)
• M11: 2,208,813 km (0.092 R)
• M12: 2,352,576 km (0.104 R)
• M13: 2,411,069 km (0.059 R)
• M14: 3,148,437 km (0.074 R)
• M15: 3,343,064 km (0.072 R)
• M16: 3,474,859 km (0.095 R)
• M17: 3,949,833 km (0.113 R)
• M18: 4,626,314 km (0.087 R)
• M19: 4,773,219 km (0.095 R)
• M20: 4,959,020 km (0.104 R)
• M21: 5,185,212 km (0.106 R)
• M22: 5,492,037 km (0.116 R)
• M23: 5,883,684 km (0.025 R)
• M24: 6,163,283 km (0.101 R)
• M25: 6,284,307 km (0.076 R)
• M26: 7,069,696 km (0.027 R)
• M27: 7,154,069 km (0.1 R)
• M28: 7,624,555 km (0.082 R)
• M29: 8,640,175 km (0.057 R)
• M30: 9,325,034 km (0.042 R)
• M31: 9,744,357 km (0.105 R)
• M32: 10,074,669 km (0.067 R)
• M33: 10,122,091 km (0.044 R)
• M34: 10,169,663 km (0.113 R)
• M35: 10,697,744 km (0.115 R)
• M36: 10,746,213 km (0.088 R)
• M37: 12,436,520 km (0.104 R)
• M38: 12,538,546 km (0.043 R)
• M39: 12,640,870 km (0.116 R)
• M40: 12,949,192 km (0.102 R)
• M41: 13,208,146 km (0.025 R)
• M42: 14,101,245 km (0.086 R)
• M43: 14,207,609 km (0.085 R)
• M44: 14,635,608 km (0.114 R)
• M45: 15,122,250 km (0.082 R)
• M46: 15,176,554 km (0.075 R)
• M47: 15,504,323 km (0.107 R)
• M48: 16,278,044 km (0.108 R)
• M49: 16,838,437 km (0.062 R)
• M50: 17,234,423 km (0.061 R)
• M51: 17,862,883 km (0.108 R)
• M52: 18,790,390 km (0.071 R)
• M53: 18,966,018 km (0.119 R)
• M54: 20,031,155 km (0.08 R)
• M55: 21,237,363 km (0.1 R)
• M56: 21,726,398 km (0.112 R)
• M57: 21,972,187 km (0.104 R)
• M58: 22,342,741 km (0.116 R)
• M59: 23,215,495 km (0.089 R)
• M60: 23,278,326 km (0.107 R)
• M61: 23,403,988 km (0.119 R)
• M62: 23,972,311 km (0.108 R)
• M63: 24,481,392 km (0.114 R)
• M64: 27,145,730 km (0.068 R)
• M65: 32,251,207 km (0.114 R)
• M66: 32,461,392 km (0.06 R)
• M67: 33,236,309 km (0.076 R)
• M68: 33,448,588 km (0.079 R)
• M69: 33,732,525 km (0.105 R)
• M70: 34,445,658 km (0.116 R)
• M71: 34,660,630 km (0.08 R)
• M72: 35,597,113 km (0.104 R)
• M73: 36,687,980 km (0.107 R)
• M74: 37,200,802 km (0.066 R)
• M75: 38,233,476 km (0.113 R)
• M76: 39,275,575 km (0.118 R)
• M77: 39,725,116 km (0.073 R)
• M78: 40,327,098 km (0.114 R)
• M79: 41,692,478 km (0.096 R)
• M80: 42,380,778 km (0.107 R)
• M81: 42,457,521 km (0.114 R)
• M82: 42,918,732 km (0.09 R)
• M83: 43,072,967 km (0.103 R)
• M84: 43,150,010 km (0.037 R)
• M85: 43,846,238 km (0.038 R)
• M86: 45,957,214 km (0.087 R)
• M87: 50,277,301 km (0.108 R)
• M88: 50,520,996 km (0.077 R)
• M89: 50,765,140 km (0.105 R)
• M90: 51,254,624 km (0.026 R)
• M91: 52,567,645 km (0.112 R)
• M92: 54,891,947 km (0.067 R)
• M93: 55,059,197 km (0.109 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: 404 - 15,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit