G6V Star System Generated (Seed: 1768078229)

Star Details

Spectral Class: G8V

Temperature: 5,280 K

Mass: 0.92 sol

Luminosity: 0.75 lux

Habitable Zone (HZ)

Inner Boundary: 0.83 AU

Outer Boundary: 1.19 AU

Physical Limits

Snow Line: 4.16 AU

Max System Radius: 19.2 AU

Planetary System (5 Planets)

Asteroid Belt

Center: 2.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.3

Radius: 15

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.1 AU - 4.96 AU

Year: 3672 Days

Day: 14.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 4.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (69)

Outer Limit: 99,329,133 km

  • M1: 215,421 km (0.117 R)
  • M2: 336,595 km (0.114 R)
  • M3: 533,765 km (0.105 R)
  • M4: 637,586 km (0.081 R)
  • M5: 750,084 km (0.029 R)
  • M6: 1,054,216 km (0.1 R)
  • M7: 1,192,295 km (0.052 R)
  • M8: 1,288,038 km (0.105 R)
  • M9: 1,462,319 km (0.096 R)
  • M10: 1,725,911 km (0.096 R)
  • M11: 2,005,359 km (0.031 R)
  • M12: 2,136,108 km (0.117 R)
  • M13: 2,437,249 km (0.092 R)
  • M14: 2,608,987 km (0.082 R)
  • M15: 2,866,146 km (0.029 R)
  • M16: 2,997,792 km (0.108 R)
  • M17: 3,284,720 km (0.118 R)
  • M18: 3,388,242 km (0.116 R)
  • M19: 3,651,834 km (0.108 R)
  • M20: 3,940,408 km (0.118 R)
  • M21: 4,069,212 km (0.03 R)
  • M22: 4,501,998 km (0.062 R)
  • M23: 4,617,488 km (0.107 R)
  • M24: 4,714,427 km (0.066 R)
  • M25: 4,949,894 km (0.082 R)
  • M26: 5,576,560 km (0.086 R)
  • M27: 5,825,939 km (0.118 R)
  • M28: 5,952,050 km (0.1 R)
  • M29: 6,249,750 km (0.091 R)
  • M30: 6,530,845 km (0.089 R)
  • M31: 6,815,978 km (0.084 R)
  • M32: 7,262,827 km (0.11 R)
  • M33: 7,376,073 km (0.117 R)
  • M34: 7,512,655 km (0.086 R)
  • M35: 7,765,476 km (0.028 R)
  • M36: 8,397,826 km (0.099 R)
  • M37: 8,684,156 km (0.095 R)
  • M38: 8,852,753 km (0.119 R)
  • M39: 8,973,927 km (0.12 R)
  • M40: 9,414,493 km (0.077 R)
  • M41: 9,612,561 km (0.105 R)
  • M42: 9,887,222 km (0.03 R)
  • M43: 10,164,427 km (0.085 R)
  • M44: 10,291,286 km (0.105 R)
  • M45: 10,495,487 km (0.097 R)
  • M46: 10,726,766 km (0.116 R)
  • M47: 11,168,229 km (0.079 R)
  • M48: 11,325,456 km (0.081 R)
  • M49: 11,509,911 km (0.073 R)
  • M50: 11,855,033 km (0.11 R)
  • M51: 12,365,610 km (0.088 R)
  • M52: 12,664,507 km (0.114 R)
  • M53: 13,214,130 km (0.041 R)
  • M54: 13,996,826 km (0.031 R)
  • M55: 14,194,893 km (0.117 R)
  • M56: 14,365,285 km (0.102 R)
  • M57: 14,536,575 km (0.042 R)
  • M58: 15,140,950 km (0.103 R)
  • M59: 15,286,060 km (0.117 R)
  • M60: 16,048,261 km (0.102 R)
  • M61: 16,643,062 km (0.1 R)
  • M62: 16,823,029 km (0.101 R)
  • M63: 17,609,764 km (0.106 R)
  • M64: 17,915,691 km (0.116 R)
  • M65: 18,161,630 km (0.046 R)
  • M66: 19,219,437 km (0.026 R)
  • M67: 19,502,775 km (0.037 R)
  • M68: 19,692,465 km (0.087 R)
  • M69: 20,329,154 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.5

Radius: 10.6

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.76 AU - 5.4 AU

Year: 3732 Days

Day: 5.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.1 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (78)

Outer Limit: 99,329,133 km

  • M1: 250,128 km (0.079 R)
  • M2: 316,250 km (0.112 R)
  • M3: 399,576 km (0.084 R)
  • M4: 492,626 km (0.11 R)
  • M5: 565,929 km (0.1 R)
  • M6: 767,736 km (0.09 R)
  • M7: 877,840 km (0.084 R)
  • M8: 1,005,597 km (0.046 R)
  • M9: 1,090,269 km (0.103 R)
  • M10: 1,359,545 km (0.116 R)
  • M11: 1,736,981 km (0.087 R)
  • M12: 1,825,393 km (0.117 R)
  • M13: 1,945,520 km (0.075 R)
  • M14: 2,022,114 km (0.041 R)
  • M15: 2,704,879 km (0.111 R)
  • M16: 2,842,808 km (0.031 R)
  • M17: 3,053,891 km (0.078 R)
  • M18: 3,417,414 km (0.093 R)
  • M19: 3,510,464 km (0.085 R)
  • M20: 3,833,445 km (0.118 R)
  • M21: 4,106,462 km (0.073 R)
  • M22: 4,610,158 km (0.089 R)
  • M23: 4,775,463 km (0.04 R)
  • M24: 4,921,770 km (0.079 R)
  • M25: 5,006,143 km (0.076 R)
  • M26: 5,090,816 km (0.107 R)
  • M27: 5,240,413 km (0.103 R)
  • M28: 5,987,206 km (0.101 R)
  • M29: 6,419,245 km (0.116 R)
  • M30: 6,580,960 km (0.11 R)
  • M31: 6,861,306 km (0.077 R)
  • M32: 7,026,612 km (0.1 R)
  • M33: 7,121,756 km (0.116 R)
  • M34: 7,241,285 km (0.119 R)
  • M35: 7,603,761 km (0.067 R)
  • M36: 8,271,117 km (0.03 R)
  • M37: 8,396,779 km (0.1 R)
  • M38: 9,034,664 km (0.111 R)
  • M39: 9,138,186 km (0.117 R)
  • M40: 9,451,145 km (0.111 R)
  • M41: 9,556,312 km (0.118 R)
  • M42: 9,953,943 km (0.065 R)
  • M43: 10,087,684 km (0.087 R)
  • M44: 10,168,167 km (0.101 R)
  • M45: 11,485,825 km (0.075 R)
  • M46: 11,626,148 km (0.108 R)
  • M47: 11,993,710 km (0.112 R)
  • M48: 12,107,704 km (0.106 R)
  • M49: 12,193,274 km (0.104 R)
  • M50: 13,769,138 km (0.097 R)
  • M51: 13,888,367 km (0.068 R)
  • M52: 14,068,034 km (0.052 R)
  • M53: 14,490,050 km (0.11 R)
  • M54: 15,563,115 km (0.065 R)
  • M55: 15,999,492 km (0.074 R)
  • M56: 16,282,232 km (0.069 R)
  • M57: 16,376,778 km (0.104 R)
  • M58: 16,757,056 km (0.111 R)
  • M59: 18,274,277 km (0.115 R)
  • M60: 18,602,794 km (0.076 R)
  • M61: 18,933,107 km (0.027 R)
  • M62: 19,065,949 km (0.102 R)
  • M63: 19,499,334 km (0.09 R)
  • M64: 19,734,054 km (0.111 R)
  • M65: 19,936,011 km (0.066 R)
  • M66: 20,206,484 km (0.064 R)
  • M67: 20,274,251 km (0.073 R)
  • M68: 20,546,071 km (0.106 R)
  • M69: 20,750,870 km (0.03 R)
  • M70: 21,059,191 km (0.084 R)
  • M71: 21,265,487 km (0.053 R)
  • M72: 22,167,712 km (0.032 R)
  • M73: 22,412,753 km (0.075 R)
  • M74: 22,518,070 km (0.072 R)
  • M75: 22,870,223 km (0.086 R)
  • M76: 23,401,894 km (0.042 R)
  • M77: 23,830,193 km (0.068 R)
  • M78: 23,937,604 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.5

Radius: 11.5

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.13 AU - 7.25 AU

Year: 6589 Days

Day: 14.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (83)

Outer Limit: 99,329,133 km

  • M1: 285,433 km (0.108 R)
  • M2: 460,911 km (0.111 R)
  • M3: 545,733 km (0.041 R)
  • M4: 623,524 km (0.069 R)
  • M5: 748,588 km (0.051 R)
  • M6: 837,150 km (0.085 R)
  • M7: 929,601 km (0.07 R)
  • M8: 1,335,909 km (0.084 R)
  • M9: 1,675,496 km (0.088 R)
  • M10: 1,754,783 km (0.114 R)
  • M11: 1,917,246 km (0.115 R)
  • M12: 2,345,395 km (0.097 R)
  • M13: 2,457,295 km (0.12 R)
  • M14: 2,898,459 km (0.116 R)
  • M15: 2,970,415 km (0.08 R)
  • M16: 3,067,355 km (0.105 R)
  • M17: 3,165,491 km (0.036 R)
  • M18: 3,671,431 km (0.079 R)
  • M19: 3,907,496 km (0.079 R)
  • M20: 4,872,403 km (0.099 R)
  • M21: 5,278,411 km (0.092 R)
  • M22: 5,366,973 km (0.102 R)
  • M23: 5,485,604 km (0.105 R)
  • M24: 5,635,352 km (0.097 R)
  • M25: 6,061,556 km (0.066 R)
  • M26: 6,466,817 km (0.103 R)
  • M27: 6,784,563 km (0.079 R)
  • M28: 7,936,616 km (0.035 R)
  • M29: 8,038,193 km (0.054 R)
  • M30: 8,242,693 km (0.1 R)
  • M31: 8,345,616 km (0.068 R)
  • M32: 9,113,203 km (0.117 R)
  • M33: 10,380,596 km (0.12 R)
  • M34: 10,678,146 km (0.053 R)
  • M35: 10,827,894 km (0.063 R)
  • M36: 11,973,514 km (0.108 R)
  • M37: 12,363,965 km (0.073 R)
  • M38: 12,600,180 km (0.103 R)
  • M39: 13,237,616 km (0.082 R)
  • M40: 13,885,525 km (0.098 R)
  • M41: 14,049,035 km (0.099 R)
  • M42: 15,002,123 km (0.074 R)
  • M43: 15,212,159 km (0.071 R)
  • M44: 16,579,034 km (0.081 R)
  • M45: 16,709,185 km (0.098 R)
  • M46: 17,101,729 km (0.057 R)
  • M47: 17,277,058 km (0.091 R)
  • M48: 18,029,386 km (0.11 R)
  • M49: 18,163,276 km (0.103 R)
  • M50: 18,701,978 km (0.109 R)
  • M51: 19,611,682 km (0.1 R)
  • M52: 19,703,386 km (0.063 R)
  • M53: 20,210,672 km (0.064 R)
  • M54: 20,582,273 km (0.077 R)
  • M55: 20,815,796 km (0.093 R)
  • M56: 20,909,294 km (0.081 R)
  • M57: 22,907,473 km (0.032 R)
  • M58: 23,052,433 km (0.068 R)
  • M59: 23,831,240 km (0.083 R)
  • M60: 24,470,322 km (0.107 R)
  • M61: 25,264,687 km (0.096 R)
  • M62: 25,364,469 km (0.086 R)
  • M63: 25,916,186 km (0.093 R)
  • M64: 26,573,369 km (0.099 R)
  • M65: 27,133,763 km (0.11 R)
  • M66: 27,595,122 km (0.119 R)
  • M67: 27,749,507 km (0.077 R)
  • M68: 28,059,175 km (0.095 R)
  • M69: 28,162,547 km (0.119 R)
  • M70: 28,577,681 km (0.058 R)
  • M71: 29,466,442 km (0.103 R)
  • M72: 29,571,609 km (0.085 R)
  • M73: 31,217,635 km (0.116 R)
  • M74: 33,275,653 km (0.072 R)
  • M75: 34,265,691 km (0.099 R)
  • M76: 34,542,448 km (0.086 R)
  • M77: 34,819,952 km (0.107 R)
  • M78: 35,544,903 km (0.074 R)
  • M79: 35,881,199 km (0.101 R)
  • M80: 36,331,189 km (0.117 R)
  • M81: 37,578,387 km (0.074 R)
  • M82: 37,692,380 km (0.104 R)
  • M83: 38,436,630 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.5

Radius: 11.2

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 10.53 AU - 11.69 AU

Year: 14102 Days

Day: 11.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 19.4 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (86)

Outer Limit: 99,329,133 km

  • M1: 154,535 km (0.095 R)
  • M2: 228,286 km (0.116 R)
  • M3: 435,928 km (0.07 R)
  • M4: 566,826 km (0.093 R)
  • M5: 1,134,700 km (0.096 R)
  • M6: 1,447,659 km (0.097 R)
  • M7: 1,842,747 km (0.094 R)
  • M8: 1,982,022 km (0.045 R)
  • M9: 2,153,761 km (0.027 R)
  • M10: 2,271,045 km (0.106 R)
  • M11: 2,420,793 km (0.061 R)
  • M12: 2,543,014 km (0.05 R)
  • M13: 4,201,606 km (0.077 R)
  • M14: 4,386,509 km (0.052 R)
  • M15: 4,611,953 km (0.088 R)
  • M16: 4,802,840 km (0.072 R)
  • M17: 6,085,342 km (0.089 R)
  • M18: 6,549,694 km (0.107 R)
  • M19: 7,245,474 km (0.117 R)
  • M20: 7,828,157 km (0.111 R)
  • M21: 8,194,223 km (0.048 R)
  • M22: 8,425,950 km (0.114 R)
  • M23: 10,306,246 km (0.054 R)
  • M24: 10,556,523 km (0.088 R)
  • M25: 11,216,400 km (0.112 R)
  • M26: 11,942,099 km (0.12 R)
  • M27: 12,046,967 km (0.089 R)
  • M28: 13,004,992 km (0.086 R)
  • M29: 14,375,907 km (0.105 R)
  • M30: 15,163,689 km (0.115 R)
  • M31: 15,965,384 km (0.063 R)
  • M32: 16,898,426 km (0.118 R)
  • M33: 17,134,491 km (0.114 R)
  • M34: 17,729,292 km (0.075 R)
  • M35: 17,909,109 km (0.108 R)
  • M36: 19,554,386 km (0.11 R)
  • M37: 19,864,503 km (0.11 R)
  • M38: 21,566,328 km (0.104 R)
  • M39: 23,249,005 km (0.103 R)
  • M40: 24,371,887 km (0.087 R)
  • M41: 24,973,420 km (0.089 R)
  • M42: 25,107,759 km (0.066 R)
  • M43: 25,377,184 km (0.106 R)
  • M44: 26,055,012 km (0.04 R)
  • M45: 27,359,207 km (0.094 R)
  • M46: 28,333,837 km (0.107 R)
  • M47: 29,816,950 km (0.081 R)
  • M48: 29,888,159 km (0.115 R)
  • M49: 30,030,875 km (0.102 R)
  • M50: 30,245,398 km (0.078 R)
  • M51: 30,532,028 km (0.105 R)
  • M52: 32,564,315 km (0.116 R)
  • M53: 32,858,125 km (0.083 R)
  • M54: 33,374,537 km (0.11 R)
  • M55: 37,370,894 km (0.092 R)
  • M56: 38,141,623 km (0.096 R)
  • M57: 38,684,364 km (0.032 R)
  • M58: 39,229,648 km (0.067 R)
  • M59: 40,564,510 km (0.094 R)
  • M60: 40,880,610 km (0.075 R)
  • M61: 41,754,561 km (0.102 R)
  • M62: 41,834,297 km (0.093 R)
  • M63: 43,601,496 km (0.1 R)
  • M64: 43,844,443 km (0.061 R)
  • M65: 44,250,302 km (0.119 R)
  • M66: 44,575,827 km (0.055 R)
  • M67: 44,902,100 km (0.052 R)
  • M68: 46,380,426 km (0.036 R)
  • M69: 46,463,004 km (0.11 R)
  • M70: 47,125,573 km (0.092 R)
  • M71: 47,208,600 km (0.119 R)
  • M72: 48,543,911 km (0.084 R)
  • M73: 51,251,483 km (0.107 R)
  • M74: 52,021,762 km (0.106 R)
  • M75: 53,054,735 km (0.062 R)
  • M76: 53,314,138 km (0.069 R)
  • M77: 53,920,907 km (0.116 R)
  • M78: 54,966,297 km (0.104 R)
  • M79: 55,403,871 km (0.054 R)
  • M80: 55,754,678 km (0.105 R)
  • M81: 56,988,561 km (0.093 R)
  • M82: 58,409,741 km (0.093 R)
  • M83: 58,677,521 km (0.097 R)
  • M84: 59,214,428 km (0.119 R)
  • M85: 59,573,163 km (0.113 R)
  • M86: 59,752,830 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 723.2

Radius: 4

Gravity: 45.2 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 17.51 AU - 18.45 AU

Year: 29032 Days

Day: 20.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.4 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (98)

Outer Limit: 99,329,133 km

  • M1: 74,799 km (0.112 R)
  • M2: 134,488 km (0.104 R)
  • M3: 269,875 km (0.084 R)
  • M4: 330,611 km (0.045 R)
  • M5: 373,695 km (0.063 R)
  • M6: 442,211 km (0.106 R)
  • M7: 904,319 km (0.089 R)
  • M8: 1,029,233 km (0.115 R)
  • M9: 1,888,374 km (0.09 R)
  • M10: 1,928,017 km (0.1 R)
  • M11: 2,597,318 km (0.087 R)
  • M12: 2,820,069 km (0.098 R)
  • M13: 4,649,651 km (0.079 R)
  • M14: 6,344,147 km (0.102 R)
  • M15: 6,583,204 km (0.119 R)
  • M16: 6,703,780 km (0.056 R)
  • M17: 7,442,644 km (0.067 R)
  • M18: 8,336,940 km (0.082 R)
  • M19: 9,535,667 km (0.087 R)
  • M20: 10,154,853 km (0.081 R)
  • M21: 11,795,643 km (0.099 R)
  • M22: 12,163,055 km (0.104 R)
  • M23: 12,833,852 km (0.114 R)
  • M24: 13,211,586 km (0.073 R)
  • M25: 14,917,002 km (0.095 R)
  • M26: 16,690,335 km (0.032 R)
  • M27: 17,019,899 km (0.034 R)
  • M28: 17,351,558 km (0.11 R)
  • M29: 17,518,210 km (0.075 R)
  • M30: 17,769,085 km (0.105 R)
  • M31: 17,937,084 km (0.025 R)
  • M32: 20,343,066 km (0.072 R)
  • M33: 20,518,844 km (0.071 R)
  • M34: 20,606,807 km (0.119 R)
  • M35: 20,694,921 km (0.083 R)
  • M36: 23,673,863 km (0.12 R)
  • M37: 23,766,165 km (0.085 R)
  • M38: 24,136,719 km (0.115 R)
  • M39: 26,399,985 km (0.105 R)
  • M40: 26,495,728 km (0.077 R)
  • M41: 26,687,662 km (0.119 R)
  • M42: 28,435,114 km (0.114 R)
  • M43: 28,533,251 km (0.101 R)
  • M44: 31,124,735 km (0.095 R)
  • M45: 33,894,240 km (0.05 R)
  • M46: 34,206,900 km (0.081 R)
  • M47: 37,062,723 km (0.066 R)
  • M48: 38,247,987 km (0.059 R)
  • M49: 38,464,754 km (0.038 R)
  • M50: 41,098,425 km (0.114 R)
  • M51: 42,324,828 km (0.101 R)
  • M52: 42,436,877 km (0.119 R)
  • M53: 43,337,007 km (0.043 R)
  • M54: 43,676,295 km (0.11 R)
  • M55: 44,129,876 km (0.098 R)
  • M56: 44,585,102 km (0.118 R)
  • M57: 47,814,920 km (0.11 R)
  • M58: 48,399,549 km (0.108 R)
  • M59: 50,286,277 km (0.109 R)
  • M60: 51,956,836 km (0.114 R)
  • M61: 53,524,173 km (0.052 R)
  • M62: 54,496,410 km (0.116 R)
  • M63: 54,984,697 km (0.077 R)
  • M64: 55,719,971 km (0.119 R)
  • M65: 55,965,760 km (0.096 R)
  • M66: 56,705,222 km (0.092 R)
  • M67: 58,568,165 km (0.106 R)
  • M68: 59,193,484 km (0.113 R)
  • M69: 60,072,820 km (0.063 R)
  • M70: 60,451,004 km (0.075 R)
  • M71: 60,956,345 km (0.051 R)
  • M72: 61,844,358 km (0.115 R)
  • M73: 62,098,824 km (0.093 R)
  • M74: 62,736,560 km (0.113 R)
  • M75: 64,791,735 km (0.1 R)
  • M76: 65,568,148 km (0.087 R)
  • M77: 65,957,402 km (0.037 R)
  • M78: 66,217,403 km (0.086 R)
  • M79: 70,689,033 km (0.08 R)
  • M80: 72,290,478 km (0.043 R)
  • M81: 75,800,792 km (0.074 R)
  • M82: 76,618,793 km (0.1 R)
  • M83: 80,613,206 km (0.03 R)
  • M84: 81,308,687 km (0.045 R)
  • M85: 81,587,388 km (0.069 R)
  • M86: 84,674,788 km (0.06 R)
  • M87: 85,098,749 km (0.059 R)
  • M88: 86,090,583 km (0.099 R)
  • M89: 86,659,204 km (0.081 R)
  • M90: 86,943,889 km (0.107 R)
  • M91: 89,520,563 km (0.108 R)
  • M92: 91,397,118 km (0.119 R)
  • M93: 95,335,581 km (0.1 R)
  • M94: 95,629,541 km (0.103 R)
  • M95: 96,218,358 km (0.095 R)
  • M96: 96,513,216 km (0.094 R)
  • M97: 96,808,372 km (0.072 R)
  • M98: 97,695,488 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 12,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit