G7V Star System Generated (Seed: 1768176079)

Star Details

Spectral Class: G8V

Temperature: 5,320 K

Mass: 0.93 sol

Luminosity: 0.78 lux

Habitable Zone (HZ)

Inner Boundary: 0.84 AU

Outer Boundary: 1.21 AU

Physical Limits

Snow Line: 4.24 AU

Max System Radius: 19.3 AU

Planetary System (9 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.55 AU - 0.73 AU

Year: 194 Days

Day: 38.1 Hours

Environment

Temp: 176 °C

Axial Tilt: 0.5 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,544,791 km

  • M1: 363,373 km (0.062 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.67 AU - 0.87 AU

Year: 256 Days

Day: 23.3 Hours

Environment

Temp: 149 °C

Axial Tilt: 28.1 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,544,791 km

  • M1: 99,183 km (0.07 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.74 AU - 0.9 AU

Year: 281 Days

Day: 24.3 Hours

Environment

Temp: 92 °C

Axial Tilt: 41.3 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,544,791 km

  • M1: 297,101 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.97 AU - 1.04 AU

Year: 379 Days

Day: 32.6 Hours

Environment

Temp: 20 °C

Axial Tilt: 15.4 °

Atmosphere: Nâ‚‚, Oâ‚‚

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.38 AU - 2.08 AU

Year: 862 Days

Day: 36.1 Hours

Environment

Temp: -61 °C

Axial Tilt: 42.5 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,544,791 km

  • M1: 277,953 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.2

Radius: 8

Gravity: 14.36 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.39 AU - 5.67 AU

Year: 4273 Days

Day: 12.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 38.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (84)

Outer Limit: 95,544,791 km

  • M1: 110,104 km (0.058 R)
  • M2: 159,920 km (0.084 R)
  • M3: 217,665 km (0.069 R)
  • M4: 413,788 km (0.079 R)
  • M5: 549,922 km (0.057 R)
  • M6: 840,291 km (0.104 R)
  • M7: 1,016,518 km (0.097 R)
  • M8: 1,073,215 km (0.105 R)
  • M9: 1,420,581 km (0.116 R)
  • M10: 1,549,385 km (0.039 R)
  • M11: 1,749,996 km (0.113 R)
  • M12: 1,818,811 km (0.07 R)
  • M13: 1,976,786 km (0.056 R)
  • M14: 2,121,298 km (0.11 R)
  • M15: 2,269,101 km (0.095 R)
  • M16: 3,636,126 km (0.098 R)
  • M17: 4,504,691 km (0.107 R)
  • M18: 5,035,913 km (0.094 R)
  • M19: 5,384,327 km (0.053 R)
  • M20: 5,510,587 km (0.107 R)
  • M21: 5,663,476 km (0.055 R)
  • M22: 6,262,616 km (0.057 R)
  • M23: 6,964,080 km (0.042 R)
  • M24: 7,018,982 km (0.089 R)
  • M25: 7,633,381 km (0.098 R)
  • M26: 7,947,088 km (0.12 R)
  • M27: 8,004,683 km (0.111 R)
  • M28: 8,265,133 km (0.114 R)
  • M29: 9,885,427 km (0.108 R)
  • M30: 10,071,527 km (0.104 R)
  • M31: 10,509,998 km (0.057 R)
  • M32: 10,604,843 km (0.073 R)
  • M33: 10,668,123 km (0.101 R)
  • M34: 11,276,239 km (0.087 R)
  • M35: 11,340,865 km (0.113 R)
  • M36: 11,698,853 km (0.103 R)
  • M37: 12,126,553 km (0.113 R)
  • M38: 12,226,036 km (0.109 R)
  • M39: 12,559,340 km (0.12 R)
  • M40: 12,727,188 km (0.046 R)
  • M41: 13,201,264 km (0.086 R)
  • M42: 13,269,331 km (0.116 R)
  • M43: 13,508,987 km (0.075 R)
  • M44: 13,853,660 km (0.095 R)
  • M45: 13,992,338 km (0.084 R)
  • M46: 14,061,901 km (0.047 R)
  • M47: 15,620,262 km (0.078 R)
  • M48: 15,800,826 km (0.084 R)
  • M49: 16,456,514 km (0.066 R)
  • M50: 17,381,926 km (0.1 R)
  • M51: 18,782,162 km (0.1 R)
  • M52: 19,437,700 km (0.032 R)
  • M53: 19,554,237 km (0.115 R)
  • M54: 19,748,714 km (0.097 R)
  • M55: 19,983,134 km (0.115 R)
  • M56: 20,061,523 km (0.078 R)
  • M57: 20,218,451 km (0.119 R)
  • M58: 20,969,732 km (0.032 R)
  • M59: 21,049,318 km (0.078 R)
  • M60: 21,248,732 km (0.12 R)
  • M61: 21,729,988 km (0.106 R)
  • M62: 22,417,989 km (0.102 R)
  • M63: 22,621,592 km (0.075 R)
  • M64: 22,784,952 km (0.067 R)
  • M65: 22,989,902 km (0.114 R)
  • M66: 23,525,163 km (0.105 R)
  • M67: 24,023,024 km (0.092 R)
  • M68: 24,106,350 km (0.065 R)
  • M69: 25,155,780 km (0.106 R)
  • M70: 25,282,788 km (0.089 R)
  • M71: 25,792,618 km (0.078 R)
  • M72: 25,877,888 km (0.102 R)
  • M73: 26,006,094 km (0.117 R)
  • M74: 26,220,168 km (0.075 R)
  • M75: 26,865,683 km (0.105 R)
  • M76: 27,299,068 km (0.064 R)
  • M77: 27,429,518 km (0.056 R)
  • M78: 27,691,015 km (0.095 R)
  • M79: 28,084,906 km (0.11 R)
  • M80: 28,260,534 km (0.108 R)
  • M81: 28,392,479 km (0.089 R)
  • M82: 29,233,070 km (0.109 R)
  • M83: 29,411,091 km (0.098 R)
  • M84: 29,857,641 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.3

Radius: 6

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 10.89 AU - 13.39 AU

Year: 16021 Days

Day: 23.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 27 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (95)

Outer Limit: 95,544,791 km

  • M1: 76,295 km (0.111 R)
  • M2: 530,773 km (0.086 R)
  • M3: 993,779 km (0.079 R)
  • M4: 1,035,217 km (0.061 R)
  • M5: 1,077,254 km (0.102 R)
  • M6: 1,675,795 km (0.092 R)
  • M7: 1,750,594 km (0.098 R)
  • M8: 2,305,303 km (0.064 R)
  • M9: 2,388,779 km (0.115 R)
  • M10: 2,674,361 km (0.062 R)
  • M11: 3,122,856 km (0.113 R)
  • M12: 3,184,340 km (0.1 R)
  • M13: 3,594,538 km (0.118 R)
  • M14: 4,673,437 km (0.096 R)
  • M15: 4,814,957 km (0.105 R)
  • M16: 5,284,545 km (0.088 R)
  • M17: 5,693,396 km (0.113 R)
  • M18: 5,768,793 km (0.062 R)
  • M19: 5,844,490 km (0.107 R)
  • M20: 5,920,635 km (0.066 R)
  • M21: 6,423,134 km (0.12 R)
  • M22: 6,580,511 km (0.083 R)
  • M23: 6,859,062 km (0.074 R)
  • M24: 6,979,638 km (0.088 R)
  • M25: 8,351,451 km (0.038 R)
  • M26: 8,480,254 km (0.04 R)
  • M27: 9,310,971 km (0.108 R)
  • M28: 9,489,143 km (0.098 R)
  • M29: 9,623,481 km (0.098 R)
  • M30: 10,674,556 km (0.082 R)
  • M31: 11,809,705 km (0.088 R)
  • M32: 12,489,477 km (0.099 R)
  • M33: 13,032,368 km (0.094 R)
  • M34: 13,281,748 km (0.071 R)
  • M35: 13,331,863 km (0.066 R)
  • M36: 14,294,825 km (0.047 R)
  • M37: 14,914,609 km (0.037 R)
  • M38: 15,175,358 km (0.104 R)
  • M39: 15,595,728 km (0.11 R)
  • M40: 16,448,136 km (0.095 R)
  • M41: 16,501,842 km (0.119 R)
  • M42: 16,663,557 km (0.08 R)
  • M43: 17,206,149 km (0.059 R)
  • M44: 17,589,568 km (0.107 R)
  • M45: 20,005,274 km (0.028 R)
  • M46: 20,408,291 km (0.043 R)
  • M47: 20,581,825 km (0.086 R)
  • M48: 20,697,913 km (0.117 R)
  • M49: 23,364,046 km (0.118 R)
  • M50: 23,849,192 km (0.1 R)
  • M51: 24,032,000 km (0.077 R)
  • M52: 24,154,072 km (0.082 R)
  • M53: 24,644,753 km (0.041 R)
  • M54: 25,573,307 km (0.08 R)
  • M55: 25,698,072 km (0.092 R)
  • M56: 25,822,986 km (0.099 R)
  • M57: 27,784,364 km (0.088 R)
  • M58: 28,233,905 km (0.078 R)
  • M59: 28,298,382 km (0.112 R)
  • M60: 29,010,169 km (0.086 R)
  • M61: 29,205,244 km (0.066 R)
  • M62: 29,924,511 km (0.049 R)
  • M63: 31,647,579 km (0.063 R)
  • M64: 32,453,762 km (0.059 R)
  • M65: 34,567,281 km (0.074 R)
  • M66: 35,327,836 km (0.118 R)
  • M67: 35,745,065 km (0.064 R)
  • M68: 35,814,777 km (0.04 R)
  • M69: 35,884,490 km (0.104 R)
  • M70: 36,024,065 km (0.052 R)
  • M71: 36,303,813 km (0.093 R)
  • M72: 36,724,781 km (0.105 R)
  • M73: 37,147,395 km (0.119 R)
  • M74: 38,782,350 km (0.067 R)
  • M75: 39,933,506 km (0.067 R)
  • M76: 41,681,108 km (0.077 R)
  • M77: 43,008,041 km (0.075 R)
  • M78: 43,825,893 km (0.07 R)
  • M79: 44,274,088 km (0.103 R)
  • M80: 44,423,836 km (0.085 R)
  • M81: 45,552,252 km (0.113 R)
  • M82: 45,779,043 km (0.093 R)
  • M83: 47,760,467 km (0.087 R)
  • M84: 48,375,763 km (0.037 R)
  • M85: 48,529,998 km (0.086 R)
  • M86: 49,148,585 km (0.105 R)
  • M87: 49,303,718 km (0.089 R)
  • M88: 49,536,642 km (0.072 R)
  • M89: 49,769,865 km (0.111 R)
  • M90: 50,237,359 km (0.054 R)
  • M91: 50,706,497 km (0.078 R)
  • M92: 52,122,292 km (0.12 R)
  • M93: 52,517,978 km (0.079 R)
  • M94: 52,914,562 km (0.119 R)
  • M95: 53,073,435 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.4

Radius: 5.6

Gravity: 17.42 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 11.17 AU - 13.63 AU

Year: 16538 Days

Day: 20.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 20.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (95)

Outer Limit: 95,544,791 km

  • M1: 114,143 km (0.105 R)
  • M2: 161,715 km (0.116 R)
  • M3: 245,341 km (0.092 R)
  • M4: 623,374 km (0.118 R)
  • M5: 1,146,518 km (0.1 R)
  • M6: 1,345,034 km (0.104 R)
  • M7: 1,690,755 km (0.102 R)
  • M8: 2,122,345 km (0.088 R)
  • M9: 2,243,070 km (0.118 R)
  • M10: 2,459,838 km (0.072 R)
  • M11: 2,522,968 km (0.061 R)
  • M12: 3,859,027 km (0.118 R)
  • M13: 4,006,680 km (0.113 R)
  • M14: 4,118,579 km (0.047 R)
  • M15: 4,615,693 km (0.093 R)
  • M16: 5,171,898 km (0.114 R)
  • M17: 5,212,439 km (0.109 R)
  • M18: 5,375,799 km (0.116 R)
  • M19: 5,791,233 km (0.111 R)
  • M20: 5,960,428 km (0.118 R)
  • M21: 6,131,119 km (0.116 R)
  • M22: 7,189,075 km (0.114 R)
  • M23: 7,279,732 km (0.074 R)
  • M24: 8,065,868 km (0.07 R)
  • M25: 9,024,791 km (0.055 R)
  • M26: 10,222,322 km (0.113 R)
  • M27: 10,324,347 km (0.103 R)
  • M28: 10,943,683 km (0.114 R)
  • M29: 11,310,497 km (0.12 R)
  • M30: 12,110,097 km (0.057 R)
  • M31: 12,218,107 km (0.069 R)
  • M32: 12,272,112 km (0.109 R)
  • M33: 13,706,905 km (0.117 R)
  • M34: 14,386,827 km (0.085 R)
  • M35: 14,846,093 km (0.115 R)
  • M36: 16,371,991 km (0.102 R)
  • M37: 17,701,617 km (0.049 R)
  • M38: 18,752,542 km (0.049 R)
  • M39: 19,633,075 km (0.12 R)
  • M40: 20,078,428 km (0.093 R)
  • M41: 20,720,352 km (0.081 R)
  • M42: 20,849,605 km (0.104 R)
  • M43: 22,354,559 km (0.064 R)
  • M44: 23,086,691 km (0.09 R)
  • M45: 23,556,578 km (0.097 R)
  • M46: 26,162,274 km (0.12 R)
  • M47: 26,301,998 km (0.105 R)
  • M48: 26,652,207 km (0.102 R)
  • M49: 26,933,451 km (0.118 R)
  • M50: 27,003,912 km (0.107 R)
  • M51: 27,499,081 km (0.097 R)
  • M52: 29,363,968 km (0.107 R)
  • M53: 29,800,045 km (0.085 R)
  • M54: 30,825,988 km (0.099 R)
  • M55: 31,343,447 km (0.099 R)
  • M56: 32,837,181 km (0.054 R)
  • M57: 32,912,429 km (0.041 R)
  • M58: 33,138,771 km (0.075 R)
  • M59: 33,365,561 km (0.078 R)
  • M60: 34,660,181 km (0.088 R)
  • M61: 36,749,914 km (0.083 R)
  • M62: 36,828,153 km (0.111 R)
  • M63: 36,984,633 km (0.089 R)
  • M64: 38,165,708 km (0.104 R)
  • M65: 38,324,132 km (0.092 R)
  • M66: 38,641,579 km (0.079 R)
  • M67: 38,800,601 km (0.096 R)
  • M68: 39,599,155 km (0.043 R)
  • M69: 39,679,339 km (0.114 R)
  • M70: 40,403,094 km (0.1 R)
  • M71: 40,564,659 km (0.101 R)
  • M72: 41,050,254 km (0.027 R)
  • M73: 41,131,336 km (0.049 R)
  • M74: 41,782,236 km (0.119 R)
  • M75: 42,108,958 km (0.05 R)
  • M76: 42,354,598 km (0.108 R)
  • M77: 42,847,224 km (0.077 R)
  • M78: 43,424,372 km (0.099 R)
  • M79: 45,255,001 km (0.069 R)
  • M80: 46,095,293 km (0.041 R)
  • M81: 46,771,325 km (0.05 R)
  • M82: 47,620,892 km (0.063 R)
  • M83: 48,218,685 km (0.103 R)
  • M84: 48,733,002 km (0.111 R)
  • M85: 48,819,021 km (0.058 R)
  • M86: 49,335,433 km (0.035 R)
  • M87: 49,940,257 km (0.072 R)
  • M88: 50,634,541 km (0.1 R)
  • M89: 51,157,236 km (0.1 R)
  • M90: 51,857,055 km (0.101 R)
  • M91: 53,620,514 km (0.034 R)
  • M92: 53,797,937 km (0.059 R)
  • M93: 57,841,119 km (0.103 R)
  • M94: 61,238,038 km (0.035 R)
  • M95: 61,516,290 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.1

Radius: 7.8

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 13.8 AU - 23 AU

Year: 29893 Days

Day: 20.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (92)

Outer Limit: 95,544,791 km

  • M1: 192,383 km (0.071 R)
  • M2: 272,418 km (0.081 R)
  • M3: 346,917 km (0.096 R)
  • M4: 669,151 km (0.117 R)
  • M5: 721,959 km (0.09 R)
  • M6: 2,717,146 km (0.09 R)
  • M7: 3,391,085 km (0.095 R)
  • M8: 3,819,383 km (0.066 R)
  • M9: 4,468,040 km (0.042 R)
  • M10: 5,753,235 km (0.076 R)
  • M11: 5,921,533 km (0.082 R)
  • M12: 5,978,081 km (0.047 R)
  • M13: 6,610,880 km (0.076 R)
  • M14: 7,144,495 km (0.09 R)
  • M15: 7,630,389 km (0.057 R)
  • M16: 8,001,841 km (0.077 R)
  • M17: 8,252,866 km (0.075 R)
  • M18: 8,506,434 km (0.045 R)
  • M19: 9,216,874 km (0.102 R)
  • M20: 10,013,333 km (0.098 R)
  • M21: 10,694,004 km (0.065 R)
  • M22: 12,099,625 km (0.083 R)
  • M23: 13,117,639 km (0.1 R)
  • M24: 13,786,641 km (0.097 R)
  • M25: 17,699,822 km (0.115 R)
  • M26: 18,686,868 km (0.087 R)
  • M27: 19,186,974 km (0.058 R)
  • M28: 19,354,673 km (0.08 R)
  • M29: 20,030,407 km (0.074 R)
  • M30: 20,371,041 km (0.083 R)
  • M31: 20,971,976 km (0.078 R)
  • M32: 22,367,275 km (0.095 R)
  • M33: 23,972,460 km (0.105 R)
  • M34: 24,515,800 km (0.083 R)
  • M35: 24,971,625 km (0.076 R)
  • M36: 26,169,904 km (0.117 R)
  • M37: 26,822,898 km (0.108 R)
  • M38: 27,292,486 km (0.098 R)
  • M39: 28,240,039 km (0.115 R)
  • M40: 32,935,916 km (0.12 R)
  • M41: 33,438,714 km (0.116 R)
  • M42: 37,552,357 km (0.12 R)
  • M43: 39,561,456 km (0.067 R)
  • M44: 40,203,081 km (0.102 R)
  • M45: 42,694,634 km (0.081 R)
  • M46: 44,124,790 km (0.028 R)
  • M47: 45,347,303 km (0.106 R)
  • M48: 45,458,903 km (0.095 R)
  • M49: 45,570,803 km (0.088 R)
  • M50: 45,906,650 km (0.12 R)
  • M51: 48,508,905 km (0.042 R)
  • M52: 50,000,695 km (0.069 R)
  • M53: 51,624,131 km (0.051 R)
  • M54: 51,974,339 km (0.07 R)
  • M55: 53,736,752 km (0.056 R)
  • M56: 53,854,934 km (0.115 R)
  • M57: 54,210,080 km (0.085 R)
  • M58: 55,280,004 km (0.057 R)
  • M59: 58,409,890 km (0.087 R)
  • M60: 58,652,987 km (0.09 R)
  • M61: 65,848,794 km (0.091 R)
  • M62: 65,975,354 km (0.033 R)
  • M63: 66,101,914 km (0.114 R)
  • M64: 66,228,473 km (0.032 R)
  • M65: 66,990,076 km (0.034 R)
  • M66: 67,371,999 km (0.058 R)
  • M67: 67,754,671 km (0.057 R)
  • M68: 68,521,958 km (0.107 R)
  • M69: 68,650,164 km (0.067 R)
  • M70: 71,230,428 km (0.113 R)
  • M71: 72,141,030 km (0.082 R)
  • M72: 73,186,420 km (0.093 R)
  • M73: 73,317,318 km (0.094 R)
  • M74: 73,710,910 km (0.096 R)
  • M75: 74,631,835 km (0.09 R)
  • M76: 75,159,915 km (0.045 R)
  • M77: 76,219,517 km (0.086 R)
  • M78: 77,150,913 km (0.056 R)
  • M79: 78,487,869 km (0.101 R)
  • M80: 78,756,098 km (0.118 R)
  • M81: 79,159,115 km (0.102 R)
  • M82: 81,456,041 km (0.052 R)
  • M83: 82,544,365 km (0.08 R)
  • M84: 83,363,862 km (0.107 R)
  • M85: 83,637,626 km (0.111 R)
  • M86: 84,186,052 km (0.086 R)
  • M87: 85,700,282 km (0.085 R)
  • M88: 85,838,361 km (0.12 R)
  • M89: 87,084,660 km (0.057 R)
  • M90: 88,197,519 km (0.107 R)
  • M91: 91,564,219 km (0.117 R)
  • M92: 92,837,447 km (0.106 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 14,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit