Star System Generated (Seed: 1766185317)

Star Details

Spectral Class: M5V

Temperature: 3,050 K

Mass: 0.3 sol

Luminosity: 0.01 lux

Habitable Zone (HZ)

Inner Boundary: 0.1 AU

Outer Boundary: 0.14 AU

Physical Limits

Snow Line: 0.48 AU

Max System Radius: 11 AU

Planetary System (7 Planets)

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.5

Radius: 11.5

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.7 AU - 0.82 AU

Year: 442 Days

Day: 11.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (36)

Outer Limit: 30,276,420 km

  • M1: 143,165 km (0.06 R)
  • M2: 252,521 km (0.103 R)
  • M3: 362,176 km (0.084 R)
  • M4: 455,675 km (0.116 R)
  • M5: 535,411 km (0.083 R)
  • M6: 620,831 km (0.11 R)
  • M7: 791,373 km (0.078 R)
  • M8: 930,200 km (0.109 R)
  • M9: 1,023,100 km (0.104 R)
  • M10: 1,166,265 km (0.093 R)
  • M11: 1,277,267 km (0.11 R)
  • M12: 1,356,553 km (0.119 R)
  • M13: 1,504,805 km (0.053 R)
  • M14: 1,729,501 km (0.103 R)
  • M15: 1,953,748 km (0.078 R)
  • M16: 2,046,200 km (0.113 R)
  • M17: 2,223,623 km (0.085 R)
  • M18: 2,332,530 km (0.08 R)
  • M19: 2,493,198 km (0.077 R)
  • M20: 2,970,565 km (0.092 R)
  • M21: 3,165,641 km (0.113 R)
  • M22: 3,504,629 km (0.092 R)
  • M23: 3,596,632 km (0.057 R)
  • M24: 3,718,105 km (0.101 R)
  • M25: 3,914,079 km (0.081 R)
  • M26: 4,173,033 km (0.076 R)
  • M27: 4,323,528 km (0.068 R)
  • M28: 4,422,412 km (0.089 R)
  • M29: 4,537,453 km (0.108 R)
  • M30: 4,637,833 km (0.042 R)
  • M31: 4,731,332 km (0.112 R)
  • M32: 5,007,490 km (0.078 R)
  • M33: 5,079,297 km (0.096 R)
  • M34: 5,191,794 km (0.118 R)
  • M35: 5,394,798 km (0.09 R)
  • M36: 5,658,390 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.7

Radius: 9.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.86 AU - 1.04 AU

Year: 617 Days

Day: 13.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 29.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (48)

Outer Limit: 30,276,420 km

  • M1: 119,080 km (0.078 R)
  • M2: 215,421 km (0.05 R)
  • M3: 324,627 km (0.112 R)
  • M4: 412,292 km (0.071 R)
  • M5: 482,004 km (0.066 R)
  • M6: 578,495 km (0.097 R)
  • M7: 686,205 km (0.089 R)
  • M8: 767,736 km (0.058 R)
  • M9: 861,385 km (0.079 R)
  • M10: 923,168 km (0.097 R)
  • M11: 991,235 km (0.095 R)
  • M12: 1,061,098 km (0.101 R)
  • M13: 1,132,605 km (0.103 R)
  • M14: 1,196,035 km (0.026 R)
  • M15: 1,306,289 km (0.116 R)
  • M16: 1,619,098 km (0.108 R)
  • M17: 1,680,134 km (0.115 R)
  • M18: 1,753,137 km (0.059 R)
  • M19: 1,867,729 km (0.111 R)
  • M20: 1,943,576 km (0.085 R)
  • M21: 2,232,748 km (0.078 R)
  • M22: 2,300,965 km (0.101 R)
  • M23: 2,376,213 km (0.048 R)
  • M24: 2,718,642 km (0.104 R)
  • M25: 2,818,573 km (0.068 R)
  • M26: 2,967,124 km (0.101 R)
  • M27: 3,049,253 km (0.104 R)
  • M28: 3,229,968 km (0.086 R)
  • M29: 3,435,814 km (0.093 R)
  • M30: 3,529,463 km (0.099 R)
  • M31: 3,616,678 km (0.076 R)
  • M32: 3,682,501 km (0.078 R)
  • M33: 3,845,264 km (0.096 R)
  • M34: 3,957,761 km (0.098 R)
  • M35: 4,231,825 km (0.112 R)
  • M36: 4,567,522 km (0.1 R)
  • M37: 4,630,952 km (0.103 R)
  • M38: 4,694,680 km (0.114 R)
  • M39: 4,903,818 km (0.116 R)
  • M40: 4,985,050 km (0.03 R)
  • M41: 5,058,502 km (0.05 R)
  • M42: 5,173,543 km (0.067 R)
  • M43: 5,381,335 km (0.07 R)
  • M44: 5,456,732 km (0.1 R)
  • M45: 5,557,860 km (0.105 R)
  • M46: 5,617,250 km (0.092 R)
  • M47: 5,685,168 km (0.102 R)
  • M48: 5,779,265 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.1

Radius: 14.7

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.24 AU - 2.04 AU

Year: 1401 Days

Day: 7 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (46)

Outer Limit: 30,276,420 km

  • M1: 185,801 km (0.088 R)
  • M2: 315,352 km (0.079 R)
  • M3: 424,260 km (0.057 R)
  • M4: 617,091 km (0.095 R)
  • M5: 744,549 km (0.112 R)
  • M6: 838,795 km (0.116 R)
  • M7: 1,199,027 km (0.069 R)
  • M8: 1,332,468 km (0.11 R)
  • M9: 1,511,836 km (0.117 R)
  • M10: 1,608,327 km (0.115 R)
  • M11: 1,836,912 km (0.031 R)
  • M12: 1,977,833 km (0.083 R)
  • M13: 2,176,948 km (0.1 R)
  • M14: 2,310,838 km (0.096 R)
  • M15: 2,521,023 km (0.07 R)
  • M16: 2,814,385 km (0.092 R)
  • M17: 2,917,607 km (0.067 R)
  • M18: 3,013,350 km (0.088 R)
  • M19: 3,190,175 km (0.107 R)
  • M20: 3,462,144 km (0.097 R)
  • M21: 3,600,970 km (0.052 R)
  • M22: 3,732,317 km (0.085 R)
  • M23: 3,874,884 km (0.071 R)
  • M24: 4,077,589 km (0.075 R)
  • M25: 4,185,150 km (0.082 R)
  • M26: 4,283,735 km (0.093 R)
  • M27: 4,423,310 km (0.101 R)
  • M28: 4,645,463 km (0.093 R)
  • M29: 4,840,538 km (0.089 R)
  • M30: 4,996,419 km (0.087 R)
  • M31: 5,302,646 km (0.107 R)
  • M32: 5,420,380 km (0.109 R)
  • M33: 5,549,782 km (0.114 R)
  • M34: 5,680,381 km (0.065 R)
  • M35: 6,011,291 km (0.114 R)
  • M36: 6,134,261 km (0.077 R)
  • M37: 6,269,348 km (0.049 R)
  • M38: 6,485,217 km (0.038 R)
  • M39: 6,761,674 km (0.099 R)
  • M40: 6,983,079 km (0.094 R)
  • M41: 7,325,957 km (0.029 R)
  • M42: 7,433,518 km (0.102 R)
  • M43: 7,942,301 km (0.06 R)
  • M44: 8,052,853 km (0.102 R)
  • M45: 8,362,671 km (0.12 R)
  • M46: 8,462,602 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.2

Radius: 11.9

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.25 AU - 2.73 AU

Year: 2620 Days

Day: 5.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 30 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (71)

Outer Limit: 30,276,420 km

  • M1: 173,085 km (0.118 R)
  • M2: 249,679 km (0.114 R)
  • M3: 443,258 km (0.042 R)
  • M4: 541,395 km (0.111 R)
  • M5: 676,332 km (0.096 R)
  • M6: 854,952 km (0.113 R)
  • M7: 1,027,737 km (0.062 R)
  • M8: 1,107,174 km (0.101 R)
  • M9: 1,284,896 km (0.038 R)
  • M10: 1,589,328 km (0.09 R)
  • M11: 1,682,677 km (0.101 R)
  • M12: 1,791,584 km (0.098 R)
  • M13: 2,103,645 km (0.083 R)
  • M14: 2,311,586 km (0.042 R)
  • M15: 2,992,107 km (0.087 R)
  • M16: 3,159,058 km (0.117 R)
  • M17: 3,260,635 km (0.074 R)
  • M18: 3,397,966 km (0.112 R)
  • M19: 3,502,236 km (0.065 R)
  • M20: 3,643,007 km (0.116 R)
  • M21: 3,930,235 km (0.093 R)
  • M22: 4,168,993 km (0.072 R)
  • M23: 4,374,840 km (0.076 R)
  • M24: 5,032,472 km (0.101 R)
  • M25: 5,372,957 km (0.049 R)
  • M26: 6,161,039 km (0.118 R)
  • M27: 6,267,403 km (0.071 R)
  • M28: 6,503,767 km (0.063 R)
  • M29: 6,633,918 km (0.074 R)
  • M30: 6,786,956 km (0.112 R)
  • M31: 7,297,683 km (0.053 R)
  • M32: 7,729,124 km (0.116 R)
  • M33: 8,005,880 km (0.104 R)
  • M34: 8,145,604 km (0.086 R)
  • M35: 8,616,837 km (0.11 R)
  • M36: 8,952,086 km (0.058 R)
  • M37: 9,536,715 km (0.099 R)
  • M38: 9,684,817 km (0.072 R)
  • M39: 10,513,140 km (0.105 R)
  • M40: 10,589,584 km (0.117 R)
  • M41: 11,364,053 km (0.051 R)
  • M42: 11,890,637 km (0.088 R)
  • M43: 11,996,852 km (0.106 R)
  • M44: 12,130,143 km (0.12 R)
  • M45: 12,533,010 km (0.057 R)
  • M46: 12,641,170 km (0.077 R)
  • M47: 12,722,401 km (0.057 R)
  • M48: 12,858,386 km (0.046 R)
  • M49: 12,994,819 km (0.094 R)
  • M50: 13,159,227 km (0.117 R)
  • M51: 13,573,015 km (0.085 R)
  • M52: 13,851,416 km (0.119 R)
  • M53: 14,075,514 km (0.08 R)
  • M54: 14,328,933 km (0.057 R)
  • M55: 14,612,271 km (0.093 R)
  • M56: 15,242,377 km (0.082 R)
  • M57: 16,204,142 km (0.076 R)
  • M58: 16,381,116 km (0.111 R)
  • M59: 16,469,828 km (0.116 R)
  • M60: 16,558,839 km (0.086 R)
  • M61: 16,945,848 km (0.083 R)
  • M62: 17,547,082 km (0.115 R)
  • M63: 17,759,212 km (0.051 R)
  • M64: 17,850,467 km (0.12 R)
  • M65: 17,941,721 km (0.084 R)
  • M66: 18,987,710 km (0.097 R)
  • M67: 19,205,524 km (0.11 R)
  • M68: 19,330,289 km (0.075 R)
  • M69: 19,612,131 km (0.117 R)
  • M70: 20,148,290 km (0.117 R)
  • M71: 20,402,307 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699

Radius: 14

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2 AU - 3.08 AU

Year: 2699 Days

Day: 9.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (74)

Outer Limit: 30,276,420 km

  • M1: 174,730 km (0.08 R)
  • M2: 352,303 km (0.112 R)
  • M3: 446,101 km (0.113 R)
  • M4: 643,271 km (0.101 R)
  • M5: 731,683 km (0.109 R)
  • M6: 923,168 km (0.081 R)
  • M7: 1,067,830 km (0.105 R)
  • M8: 1,165,218 km (0.118 R)
  • M9: 1,453,044 km (0.106 R)
  • M10: 1,725,611 km (0.092 R)
  • M11: 1,815,969 km (0.042 R)
  • M12: 2,015,233 km (0.107 R)
  • M13: 2,110,826 km (0.117 R)
  • M14: 2,306,799 km (0.063 R)
  • M15: 2,421,541 km (0.119 R)
  • M16: 2,523,566 km (0.053 R)
  • M17: 2,612,128 km (0.089 R)
  • M18: 2,701,887 km (0.089 R)
  • M19: 3,294,744 km (0.029 R)
  • M20: 3,523,479 km (0.084 R)
  • M21: 4,065,921 km (0.059 R)
  • M22: 4,170,639 km (0.06 R)
  • M23: 4,562,436 km (0.101 R)
  • M24: 4,744,496 km (0.108 R)
  • M25: 4,854,900 km (0.114 R)
  • M26: 5,003,600 km (0.102 R)
  • M27: 5,477,676 km (0.112 R)
  • M28: 5,926,918 km (0.097 R)
  • M29: 6,266,655 km (0.105 R)
  • M30: 6,592,180 km (0.032 R)
  • M31: 6,757,186 km (0.109 R)
  • M32: 6,902,595 km (0.046 R)
  • M33: 7,007,164 km (0.046 R)
  • M34: 7,516,246 km (0.034 R)
  • M35: 7,906,098 km (0.116 R)
  • M36: 8,191,680 km (0.1 R)
  • M37: 8,369,253 km (0.109 R)
  • M38: 8,705,549 km (0.053 R)
  • M39: 9,345,229 km (0.047 R)
  • M40: 9,484,355 km (0.119 R)
  • M41: 9,600,743 km (0.112 R)
  • M42: 9,976,532 km (0.095 R)
  • M43: 10,118,650 km (0.094 R)
  • M44: 10,573,428 km (0.104 R)
  • M45: 10,670,068 km (0.111 R)
  • M46: 10,864,097 km (0.082 R)
  • M47: 10,986,019 km (0.118 R)
  • M48: 11,157,458 km (0.102 R)
  • M49: 11,726,977 km (0.116 R)
  • M50: 12,053,100 km (0.096 R)
  • M51: 12,204,643 km (0.081 R)
  • M52: 12,407,647 km (0.119 R)
  • M53: 12,560,686 km (0.034 R)
  • M54: 12,920,170 km (0.089 R)
  • M55: 13,127,064 km (0.095 R)
  • M56: 13,387,364 km (0.117 R)
  • M57: 13,491,933 km (0.119 R)
  • M58: 13,623,130 km (0.098 R)
  • M59: 13,860,243 km (0.09 R)
  • M60: 14,018,966 km (0.104 R)
  • M61: 14,311,879 km (0.11 R)
  • M62: 15,175,058 km (0.109 R)
  • M63: 15,338,718 km (0.087 R)
  • M64: 15,530,503 km (0.051 R)
  • M65: 15,944,291 km (0.088 R)
  • M66: 16,277,744 km (0.076 R)
  • M67: 16,895,284 km (0.117 R)
  • M68: 17,492,030 km (0.109 R)
  • M69: 18,501,666 km (0.111 R)
  • M70: 18,647,524 km (0.073 R)
  • M71: 19,146,134 km (0.107 R)
  • M72: 19,264,167 km (0.086 R)
  • M73: 19,441,440 km (0.084 R)
  • M74: 19,678,852 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89

Radius: 13.9

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.98 AU - 3.3 AU

Year: 2860 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 49.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (38)

Outer Limit: 30,276,420 km

  • M1: 173,234 km (0.111 R)
  • M2: 268,528 km (0.117 R)
  • M3: 381,475 km (0.119 R)
  • M4: 561,441 km (0.11 R)
  • M5: 763,099 km (0.12 R)
  • M6: 873,951 km (0.106 R)
  • M7: 1,051,823 km (0.115 R)
  • M8: 1,331,271 km (0.079 R)
  • M9: 1,515,576 km (0.05 R)
  • M10: 1,659,788 km (0.091 R)
  • M11: 1,817,016 km (0.097 R)
  • M12: 1,988,156 km (0.108 R)
  • M13: 2,319,365 km (0.087 R)
  • M14: 2,440,091 km (0.107 R)
  • M15: 2,649,378 km (0.113 R)
  • M16: 3,126,595 km (0.1 R)
  • M17: 3,375,526 km (0.082 R)
  • M18: 3,491,913 km (0.054 R)
  • M19: 3,772,260 km (0.119 R)
  • M20: 3,970,776 km (0.109 R)
  • M21: 4,161,514 km (0.048 R)
  • M22: 4,598,938 km (0.06 R)
  • M23: 5,332,117 km (0.096 R)
  • M24: 5,630,565 km (0.116 R)
  • M25: 5,819,956 km (0.032 R)
  • M26: 5,934,697 km (0.116 R)
  • M27: 6,691,962 km (0.038 R)
  • M28: 7,136,417 km (0.061 R)
  • M29: 7,245,773 km (0.083 R)
  • M30: 7,535,095 km (0.118 R)
  • M31: 7,828,457 km (0.066 R)
  • M32: 8,082,773 km (0.116 R)
  • M33: 8,339,932 km (0.071 R)
  • M34: 9,201,765 km (0.098 R)
  • M35: 9,380,534 km (0.106 R)
  • M36: 9,954,392 km (0.074 R)
  • M37: 10,307,144 km (0.056 R)
  • M38: 10,415,453 km (0.048 R)

Asteroid Belt

Center: 3.06 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.1

Radius: 9.7

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.9 AU - 4.06 AU

Year: 4329 Days

Day: 5.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (79)

Outer Limit: 30,276,420 km

  • M1: 193,430 km (0.117 R)
  • M2: 352,901 km (0.114 R)
  • M3: 447,746 km (0.095 R)
  • M4: 1,117,496 km (0.079 R)
  • M5: 1,205,759 km (0.109 R)
  • M6: 1,666,520 km (0.098 R)
  • M7: 1,943,127 km (0.049 R)
  • M8: 2,178,594 km (0.057 R)
  • M9: 2,404,337 km (0.085 R)
  • M10: 2,737,342 km (0.097 R)
  • M11: 2,878,712 km (0.039 R)
  • M12: 3,403,651 km (0.117 R)
  • M13: 3,666,195 km (0.1 R)
  • M14: 3,755,206 km (0.091 R)
  • M15: 3,822,525 km (0.077 R)
  • M16: 4,351,353 km (0.078 R)
  • M17: 4,660,572 km (0.1 R)
  • M18: 4,781,447 km (0.119 R)
  • M19: 5,125,373 km (0.119 R)
  • M20: 5,325,535 km (0.028 R)
  • M21: 5,401,231 km (0.039 R)
  • M22: 5,528,389 km (0.113 R)
  • M23: 5,604,983 km (0.033 R)
  • M24: 6,907,532 km (0.028 R)
  • M25: 7,550,205 km (0.119 R)
  • M26: 7,663,899 km (0.088 R)
  • M27: 7,749,469 km (0.091 R)
  • M28: 7,892,933 km (0.077 R)
  • M29: 7,979,550 km (0.091 R)
  • M30: 8,211,726 km (0.107 R)
  • M31: 8,299,540 km (0.048 R)
  • M32: 8,712,730 km (0.102 R)
  • M33: 8,891,948 km (0.105 R)
  • M34: 9,163,169 km (0.105 R)
  • M35: 9,375,897 km (0.098 R)
  • M36: 9,436,933 km (0.087 R)
  • M37: 9,559,603 km (0.093 R)
  • M38: 10,023,955 km (0.061 R)
  • M39: 10,400,792 km (0.041 R)
  • M40: 10,942,635 km (0.049 R)
  • M41: 11,363,155 km (0.054 R)
  • M42: 11,921,155 km (0.063 R)
  • M43: 14,170,808 km (0.108 R)
  • M44: 14,700,085 km (0.086 R)
  • M45: 14,806,748 km (0.082 R)
  • M46: 14,913,561 km (0.063 R)
  • M47: 15,307,752 km (0.096 R)
  • M48: 15,560,423 km (0.08 R)
  • M49: 16,326,513 km (0.08 R)
  • M50: 16,436,916 km (0.105 R)
  • M51: 16,510,818 km (0.073 R)
  • M52: 16,769,772 km (0.11 R)
  • M53: 17,217,069 km (0.115 R)
  • M54: 17,367,116 km (0.091 R)
  • M55: 17,971,342 km (0.109 R)
  • M56: 18,352,368 km (0.057 R)
  • M57: 18,467,259 km (0.075 R)
  • M58: 18,929,217 km (0.094 R)
  • M59: 19,433,811 km (0.091 R)
  • M60: 19,707,425 km (0.039 R)
  • M61: 19,785,814 km (0.078 R)
  • M62: 20,456,312 km (0.043 R)
  • M63: 20,654,978 km (0.12 R)
  • M64: 21,617,491 km (0.117 R)
  • M65: 21,738,815 km (0.055 R)
  • M66: 22,144,973 km (0.095 R)
  • M67: 22,512,535 km (0.116 R)
  • M68: 23,544,311 km (0.065 R)
  • M69: 24,760,542 km (0.081 R)
  • M70: 25,696,576 km (0.083 R)
  • M71: 26,082,987 km (0.067 R)
  • M72: 27,166,076 km (0.11 R)
  • M73: 27,735,146 km (0.086 R)
  • M74: 28,263,975 km (0.063 R)
  • M75: 28,485,230 km (0.043 R)
  • M76: 28,751,664 km (0.102 R)
  • M77: 29,152,735 km (0.116 R)
  • M78: 29,960,265 km (0.082 R)
  • M79: 30,276,365 km (0.063 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: 319 - 15,474 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit