G0V Star System Generated (Seed: 1767077008)

Star Details

Spectral Class: G7V

Temperature: 5,400 K

Mass: 0.95 sol

Luminosity: 0.84 lux

Habitable Zone (HZ)

Inner Boundary: 0.87 AU

Outer Boundary: 1.26 AU

Physical Limits

Snow Line: 4.4 AU

Max System Radius: 19.5 AU

Planetary System (9 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.67 AU - 0.73 AU

Year: 219 Days

Day: 21.7 Hours

Environment

Temp: 194 °C

Axial Tilt: 36.4 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,207,539 km

  • M1: 321,336 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.17 AU - 1.81 AU

Year: 682 Days

Day: 20.9 Hours

Environment

Temp: -52 °C

Axial Tilt: 36.8 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.84 AU - 3.92 AU

Year: 2329 Days

Day: 31.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 25.3 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.31 AU - 3.69 AU

Year: 2454 Days

Day: 26.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 0 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.15 AU - 5.09 AU

Year: 3134 Days

Day: 42 Hours

Environment

Temp: -139 °C

Axial Tilt: 32.4 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 86,207,539 km

  • M1: 282,590 km (0.118 R)
  • M2: 302,487 km (0.032 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 8.7

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 7.89 AU - 8.65 AU

Year: 8912 Days

Day: 13.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.4 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (88)

Outer Limit: 86,207,539 km

  • M1: 198,217 km (0.081 R)
  • M2: 257,308 km (0.116 R)
  • M3: 515,065 km (0.095 R)
  • M4: 810,521 km (0.087 R)
  • M5: 864,825 km (0.101 R)
  • M6: 977,173 km (0.096 R)
  • M7: 1,217,128 km (0.116 R)
  • M8: 1,634,806 km (0.075 R)
  • M9: 2,458,491 km (0.094 R)
  • M10: 2,814,086 km (0.108 R)
  • M11: 2,983,730 km (0.096 R)
  • M12: 3,127,792 km (0.114 R)
  • M13: 3,452,719 km (0.092 R)
  • M14: 3,665,148 km (0.081 R)
  • M15: 4,263,390 km (0.09 R)
  • M16: 4,328,166 km (0.104 R)
  • M17: 4,393,241 km (0.104 R)
  • M18: 4,491,526 km (0.083 R)
  • M19: 4,557,350 km (0.079 R)
  • M20: 4,959,618 km (0.108 R)
  • M21: 5,234,280 km (0.077 R)
  • M22: 6,051,234 km (0.101 R)
  • M23: 6,234,042 km (0.07 R)
  • M24: 6,455,896 km (0.082 R)
  • M25: 6,907,382 km (0.045 R)
  • M26: 7,214,058 km (0.051 R)
  • M27: 7,369,191 km (0.104 R)
  • M28: 8,281,888 km (0.083 R)
  • M29: 9,440,673 km (0.118 R)
  • M30: 9,952,746 km (0.107 R)
  • M31: 10,473,796 km (0.114 R)
  • M32: 11,497,344 km (0.084 R)
  • M33: 11,587,851 km (0.119 R)
  • M34: 11,769,612 km (0.083 R)
  • M35: 12,599,133 km (0.105 R)
  • M36: 13,447,353 km (0.067 R)
  • M37: 14,705,022 km (0.058 R)
  • M38: 15,149,028 km (0.1 R)
  • M39: 15,898,963 km (0.04 R)
  • M40: 15,999,791 km (0.09 R)
  • M41: 18,431,654 km (0.112 R)
  • M42: 20,097,576 km (0.063 R)
  • M43: 20,480,397 km (0.117 R)
  • M44: 20,976,165 km (0.082 R)
  • M45: 21,086,867 km (0.104 R)
  • M46: 21,142,218 km (0.083 R)
  • M47: 21,531,622 km (0.12 R)
  • M48: 22,035,617 km (0.053 R)
  • M49: 22,204,513 km (0.091 R)
  • M50: 22,713,744 km (0.093 R)
  • M51: 22,941,432 km (0.047 R)
  • M52: 24,032,599 km (0.034 R)
  • M53: 24,672,130 km (0.091 R)
  • M54: 25,317,345 km (0.118 R)
  • M55: 25,671,443 km (0.117 R)
  • M56: 26,205,957 km (0.111 R)
  • M57: 29,861,381 km (0.074 R)
  • M58: 29,985,996 km (0.039 R)
  • M59: 30,235,674 km (0.115 R)
  • M60: 32,193,911 km (0.068 R)
  • M61: 32,449,573 km (0.068 R)
  • M62: 33,091,647 km (0.046 R)
  • M63: 33,285,077 km (0.109 R)
  • M64: 33,543,583 km (0.1 R)
  • M65: 33,608,358 km (0.045 R)
  • M66: 34,192,837 km (0.055 R)
  • M67: 35,371,968 km (0.099 R)
  • M68: 36,165,285 km (0.029 R)
  • M69: 36,298,128 km (0.089 R)
  • M70: 36,897,716 km (0.095 R)
  • M71: 37,702,403 km (0.091 R)
  • M72: 37,769,722 km (0.113 R)
  • M73: 37,837,041 km (0.092 R)
  • M74: 38,445,007 km (0.117 R)
  • M75: 38,920,130 km (0.098 R)
  • M76: 39,056,264 km (0.11 R)
  • M77: 39,533,780 km (0.12 R)
  • M78: 40,909,034 km (0.07 R)
  • M79: 42,930,849 km (0.091 R)
  • M80: 43,282,703 km (0.094 R)
  • M81: 43,564,994 km (0.081 R)
  • M82: 45,485,681 km (0.036 R)
  • M83: 45,700,803 km (0.026 R)
  • M84: 46,059,988 km (0.035 R)
  • M85: 47,506,599 km (0.119 R)
  • M86: 48,308,444 km (0.104 R)
  • M87: 48,601,207 km (0.107 R)
  • M88: 48,674,360 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.9

Radius: 9.1

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.5 AU - 10.56 AU

Year: 10169 Days

Day: 11.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (91)

Outer Limit: 86,207,539 km

  • M1: 117,584 km (0.095 R)
  • M2: 252,222 km (0.081 R)
  • M3: 536,308 km (0.069 R)
  • M4: 614,099 km (0.079 R)
  • M5: 835,803 km (0.067 R)
  • M6: 1,004,251 km (0.114 R)
  • M7: 1,143,227 km (0.083 R)
  • M8: 1,288,786 km (0.078 R)
  • M9: 1,462,918 km (0.119 R)
  • M10: 1,552,826 km (0.05 R)
  • M11: 2,030,641 km (0.098 R)
  • M12: 2,606,294 km (0.038 R)
  • M13: 2,884,247 km (0.103 R)
  • M14: 3,408,438 km (0.117 R)
  • M15: 4,152,986 km (0.089 R)
  • M16: 4,346,865 km (0.051 R)
  • M17: 4,543,736 km (0.054 R)
  • M18: 4,980,412 km (0.102 R)
  • M19: 5,821,900 km (0.083 R)
  • M20: 6,407,127 km (0.081 R)
  • M21: 6,556,276 km (0.056 R)
  • M22: 7,242,183 km (0.078 R)
  • M23: 8,599,334 km (0.081 R)
  • M24: 8,681,613 km (0.111 R)
  • M25: 9,138,635 km (0.111 R)
  • M26: 9,306,932 km (0.092 R)
  • M27: 9,476,128 km (0.09 R)
  • M28: 9,646,370 km (0.106 R)
  • M29: 9,731,790 km (0.086 R)
  • M30: 9,860,594 km (0.108 R)
  • M31: 10,381,045 km (0.093 R)
  • M32: 10,733,049 km (0.055 R)
  • M33: 11,403,696 km (0.057 R)
  • M34: 13,831,819 km (0.043 R)
  • M35: 16,977,264 km (0.098 R)
  • M36: 17,444,009 km (0.101 R)
  • M37: 18,072,919 km (0.085 R)
  • M38: 18,390,216 km (0.116 R)
  • M39: 19,083,901 km (0.091 R)
  • M40: 20,882,965 km (0.1 R)
  • M41: 21,104,669 km (0.109 R)
  • M42: 22,394,801 km (0.106 R)
  • M43: 22,621,741 km (0.043 R)
  • M44: 22,735,585 km (0.05 R)
  • M45: 23,537,280 km (0.086 R)
  • M46: 23,652,620 km (0.026 R)
  • M47: 23,768,110 km (0.111 R)
  • M48: 23,941,643 km (0.095 R)
  • M49: 24,290,057 km (0.074 R)
  • M50: 24,523,280 km (0.062 R)
  • M51: 24,991,970 km (0.104 R)
  • M52: 25,404,411 km (0.05 R)
  • M53: 25,997,716 km (0.11 R)
  • M54: 26,057,256 km (0.104 R)
  • M55: 26,715,637 km (0.093 R)
  • M56: 27,439,989 km (0.089 R)
  • M57: 27,561,313 km (0.063 R)
  • M58: 28,415,816 km (0.116 R)
  • M59: 28,477,301 km (0.095 R)
  • M60: 28,661,606 km (0.075 R)
  • M61: 29,217,212 km (0.116 R)
  • M62: 30,778,864 km (0.103 R)
  • M63: 32,303,566 km (0.119 R)
  • M64: 32,495,799 km (0.101 R)
  • M65: 33,592,800 km (0.12 R)
  • M66: 33,917,727 km (0.057 R)
  • M67: 34,505,198 km (0.102 R)
  • M68: 34,833,116 km (0.112 R)
  • M69: 35,624,190 km (0.072 R)
  • M70: 37,560,285 km (0.083 R)
  • M71: 38,507,090 km (0.097 R)
  • M72: 38,847,126 km (0.118 R)
  • M73: 39,598,856 km (0.105 R)
  • M74: 40,148,478 km (0.104 R)
  • M75: 40,355,372 km (0.03 R)
  • M76: 40,700,793 km (0.109 R)
  • M77: 41,116,526 km (0.095 R)
  • M78: 41,603,467 km (0.12 R)
  • M79: 42,372,400 km (0.094 R)
  • M80: 43,995,387 km (0.03 R)
  • M81: 44,279,773 km (0.062 R)
  • M82: 44,350,832 km (0.111 R)
  • M83: 44,778,831 km (0.061 R)
  • M84: 46,287,077 km (0.046 R)
  • M85: 46,721,061 km (0.116 R)
  • M86: 47,229,095 km (0.027 R)
  • M87: 47,447,508 km (0.08 R)
  • M88: 47,958,085 km (0.108 R)
  • M89: 48,470,608 km (0.088 R)
  • M90: 48,837,721 km (0.039 R)
  • M91: 49,279,633 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.6

Radius: 9.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 10.27 AU - 13.09 AU

Year: 14959 Days

Day: 5.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 5.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (92)

Outer Limit: 86,207,539 km

  • M1: 502,050 km (0.036 R)
  • M2: 638,783 km (0.103 R)
  • M3: 916,736 km (0.087 R)
  • M4: 1,306,289 km (0.083 R)
  • M5: 1,382,284 km (0.103 R)
  • M6: 1,619,995 km (0.104 R)
  • M7: 1,722,919 km (0.094 R)
  • M8: 2,270,447 km (0.072 R)
  • M9: 2,599,562 km (0.103 R)
  • M10: 2,893,821 km (0.103 R)
  • M11: 4,317,544 km (0.12 R)
  • M12: 4,374,990 km (0.098 R)
  • M13: 4,432,735 km (0.081 R)
  • M14: 4,963,807 km (0.1 R)
  • M15: 5,298,158 km (0.085 R)
  • M16: 5,421,726 km (0.114 R)
  • M17: 5,861,245 km (0.081 R)
  • M18: 6,509,303 km (0.102 R)
  • M19: 7,454,312 km (0.116 R)
  • M20: 8,298,044 km (0.078 R)
  • M21: 8,477,711 km (0.026 R)
  • M22: 8,549,967 km (0.078 R)
  • M23: 8,694,927 km (0.08 R)
  • M24: 9,619,891 km (0.088 R)
  • M25: 10,420,838 km (0.036 R)
  • M26: 10,537,076 km (0.07 R)
  • M27: 10,653,762 km (0.094 R)
  • M28: 10,927,526 km (0.065 R)
  • M29: 11,682,247 km (0.081 R)
  • M30: 13,116,293 km (0.094 R)
  • M31: 13,832,717 km (0.106 R)
  • M32: 13,917,838 km (0.037 R)
  • M33: 14,389,221 km (0.109 R)
  • M34: 14,475,539 km (0.045 R)
  • M35: 14,605,240 km (0.034 R)
  • M36: 14,735,241 km (0.069 R)
  • M37: 14,822,307 km (0.077 R)
  • M38: 15,347,545 km (0.112 R)
  • M39: 15,435,658 km (0.115 R)
  • M40: 15,523,921 km (0.117 R)
  • M41: 15,701,194 km (0.083 R)
  • M42: 15,878,916 km (0.107 R)
  • M43: 17,050,866 km (0.067 R)
  • M44: 17,142,270 km (0.095 R)
  • M45: 18,578,260 km (0.079 R)
  • M46: 18,766,305 km (0.078 R)
  • M47: 18,955,097 km (0.088 R)
  • M48: 19,382,050 km (0.114 R)
  • M49: 20,100,718 km (0.088 R)
  • M50: 20,197,209 km (0.047 R)
  • M51: 20,584,667 km (0.085 R)
  • M52: 21,416,132 km (0.05 R)
  • M53: 21,564,084 km (0.081 R)
  • M54: 21,910,403 km (0.104 R)
  • M55: 22,408,415 km (0.052 R)
  • M56: 22,709,106 km (0.104 R)
  • M57: 22,910,166 km (0.107 R)
  • M58: 23,162,388 km (0.076 R)
  • M59: 23,314,230 km (0.078 R)
  • M60: 24,027,064 km (0.106 R)
  • M61: 24,129,538 km (0.076 R)
  • M62: 24,747,078 km (0.051 R)
  • M63: 25,265,584 km (0.106 R)
  • M64: 25,369,705 km (0.062 R)
  • M65: 25,630,753 km (0.111 R)
  • M66: 25,892,699 km (0.084 R)
  • M67: 26,366,326 km (0.081 R)
  • M68: 26,471,942 km (0.059 R)
  • M69: 26,842,795 km (0.089 R)
  • M70: 27,696,999 km (0.061 R)
  • M71: 28,451,720 km (0.087 R)
  • M72: 28,777,245 km (0.112 R)
  • M73: 30,146,813 km (0.091 R)
  • M74: 31,090,327 km (0.07 R)
  • M75: 32,325,557 km (0.09 R)
  • M76: 32,438,653 km (0.096 R)
  • M77: 33,006,077 km (0.042 R)
  • M78: 33,863,423 km (0.039 R)
  • M79: 34,323,586 km (0.108 R)
  • M80: 34,496,671 km (0.12 R)
  • M81: 34,612,310 km (0.084 R)
  • M82: 34,901,782 km (0.094 R)
  • M83: 34,959,826 km (0.085 R)
  • M84: 35,133,958 km (0.074 R)
  • M85: 36,126,390 km (0.078 R)
  • M86: 36,243,824 km (0.056 R)
  • M87: 37,305,819 km (0.076 R)
  • M88: 38,318,298 km (0.08 R)
  • M89: 38,497,815 km (0.107 R)
  • M90: 39,219,027 km (0.086 R)
  • M91: 39,400,040 km (0.118 R)
  • M92: 40,126,936 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.1

Radius: 5.2

Gravity: 22.45 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 15.11 AU - 18.33 AU

Year: 25620 Days

Day: 22.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (96)

Outer Limit: 86,207,539 km

  • M1: 67,319 km (0.117 R)
  • M2: 115,190 km (0.029 R)
  • M3: 192,383 km (0.084 R)
  • M4: 832,811 km (0.113 R)
  • M5: 1,175,839 km (0.112 R)
  • M6: 1,625,979 km (0.114 R)
  • M7: 1,834,070 km (0.114 R)
  • M8: 2,199,388 km (0.102 R)
  • M9: 2,995,548 km (0.076 R)
  • M10: 3,293,547 km (0.09 R)
  • M11: 3,645,551 km (0.062 R)
  • M12: 3,917,519 km (0.103 R)
  • M13: 4,149,097 km (0.1 R)
  • M14: 4,385,162 km (0.118 R)
  • M15: 5,785,847 km (0.076 R)
  • M16: 5,943,523 km (0.069 R)
  • M17: 6,155,952 km (0.091 R)
  • M18: 6,808,349 km (0.09 R)
  • M19: 6,974,851 km (0.102 R)
  • M20: 8,354,592 km (0.098 R)
  • M21: 8,532,763 km (0.047 R)
  • M22: 8,712,281 km (0.092 R)
  • M23: 9,319,798 km (0.076 R)
  • M24: 9,504,701 km (0.103 R)
  • M25: 10,193,001 km (0.069 R)
  • M26: 10,897,158 km (0.088 R)
  • M27: 11,617,023 km (0.084 R)
  • M28: 15,149,328 km (0.092 R)
  • M29: 15,366,693 km (0.11 R)
  • M30: 15,731,413 km (0.098 R)
  • M31: 15,878,019 km (0.107 R)
  • M32: 16,842,177 km (0.118 R)
  • M33: 17,142,719 km (0.08 R)
  • M34: 17,218,117 km (0.048 R)
  • M35: 17,369,210 km (0.114 R)
  • M36: 18,516,626 km (0.084 R)
  • M37: 18,826,742 km (0.069 R)
  • M38: 18,982,474 km (0.101 R)
  • M39: 19,138,654 km (0.084 R)
  • M40: 20,243,434 km (0.09 R)
  • M41: 20,643,010 km (0.097 R)
  • M42: 20,803,529 km (0.056 R)
  • M43: 21,125,912 km (0.12 R)
  • M44: 21,612,554 km (0.057 R)
  • M45: 22,431,902 km (0.076 R)
  • M46: 23,094,470 km (0.088 R)
  • M47: 25,722,606 km (0.066 R)
  • M48: 26,940,183 km (0.115 R)
  • M49: 27,555,928 km (0.108 R)
  • M50: 27,821,314 km (0.096 R)
  • M51: 28,265,321 km (0.113 R)
  • M52: 28,354,481 km (0.084 R)
  • M53: 30,612,212 km (0.112 R)
  • M54: 31,346,738 km (0.057 R)
  • M55: 33,868,509 km (0.059 R)
  • M56: 34,152,745 km (0.114 R)
  • M57: 34,437,729 km (0.074 R)
  • M58: 37,330,653 km (0.11 R)
  • M59: 37,428,490 km (0.094 R)
  • M60: 38,608,368 km (0.071 R)
  • M61: 40,501,230 km (0.116 R)
  • M62: 41,408,391 km (0.089 R)
  • M63: 42,118,682 km (0.107 R)
  • M64: 42,628,362 km (0.115 R)
  • M65: 42,832,862 km (0.106 R)
  • M66: 45,938,813 km (0.04 R)
  • M67: 46,990,038 km (0.047 R)
  • M68: 47,201,270 km (0.088 R)
  • M69: 50,083,422 km (0.115 R)
  • M70: 50,515,311 km (0.102 R)
  • M71: 53,903,404 km (0.089 R)
  • M72: 54,124,510 km (0.043 R)
  • M73: 54,678,620 km (0.067 R)
  • M74: 55,569,027 km (0.098 R)
  • M75: 58,155,723 km (0.082 R)
  • M76: 58,268,969 km (0.107 R)
  • M77: 60,781,166 km (0.101 R)
  • M78: 63,795,414 km (0.1 R)
  • M79: 64,380,640 km (0.104 R)
  • M80: 65,320,713 km (0.111 R)
  • M81: 67,333,403 km (0.091 R)
  • M82: 68,526,745 km (0.092 R)
  • M83: 68,886,229 km (0.06 R)
  • M84: 72,026,887 km (0.063 R)
  • M85: 72,148,659 km (0.104 R)
  • M86: 72,514,277 km (0.082 R)
  • M87: 73,124,935 km (0.05 R)
  • M88: 73,492,198 km (0.104 R)
  • M89: 73,614,719 km (0.12 R)
  • M90: 73,860,059 km (0.075 R)
  • M91: 77,073,571 km (0.11 R)
  • M92: 77,447,416 km (0.089 R)
  • M93: 77,821,710 km (0.094 R)
  • M94: 82,614,975 km (0.111 R)
  • M95: 84,148,353 km (0.103 R)
  • M96: 85,047,287 km (0.081 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: 366 - 18,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit