Star System Generated (Seed: 1766763251)

Star Details

Spectral Class: M3V

Temperature: 3,267 K

Mass: 0.31 sol

Luminosity: 0.02 lux

Habitable Zone (HZ)

Inner Boundary: 0.13 AU

Outer Boundary: 0.19 AU

Physical Limits

Snow Line: 0.68 AU

Max System Radius: 11.1 AU

Planetary System (6 Planets)

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.8

Radius: 8.2

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.61 AU - 0.97 AU

Year: 461 Days

Day: 14.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 39.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (54)

Outer Limit: 63,187,484 km

  • M1: 105,018 km (0.079 R)
  • M2: 160,818 km (0.091 R)
  • M3: 271,221 km (0.062 R)
  • M4: 326,273 km (0.097 R)
  • M5: 535,860 km (0.053 R)
  • M6: 665,411 km (0.077 R)
  • M7: 773,122 km (0.117 R)
  • M8: 862,731 km (0.041 R)
  • M9: 965,953 km (0.091 R)
  • M10: 1,063,192 km (0.12 R)
  • M11: 1,147,715 km (0.116 R)
  • M12: 1,212,491 km (0.086 R)
  • M13: 1,267,543 km (0.113 R)
  • M14: 1,334,862 km (0.106 R)
  • M15: 1,438,084 km (0.104 R)
  • M16: 1,561,802 km (0.086 R)
  • M17: 1,640,341 km (0.063 R)
  • M18: 1,701,676 km (0.094 R)
  • M19: 1,813,874 km (0.114 R)
  • M20: 1,883,736 km (0.051 R)
  • M21: 1,967,511 km (0.045 R)
  • M22: 2,158,996 km (0.066 R)
  • M23: 2,239,929 km (0.116 R)
  • M24: 2,342,703 km (0.086 R)
  • M25: 2,446,972 km (0.079 R)
  • M26: 2,602,853 km (0.079 R)
  • M27: 2,769,356 km (0.073 R)
  • M28: 2,827,998 km (0.07 R)
  • M29: 2,976,698 km (0.087 R)
  • M30: 3,181,498 km (0.118 R)
  • M31: 3,297,436 km (0.033 R)
  • M32: 3,438,208 km (0.093 R)
  • M33: 3,565,067 km (0.094 R)
  • M34: 3,701,650 km (0.12 R)
  • M35: 3,758,347 km (0.049 R)
  • M36: 3,831,800 km (0.095 R)
  • M37: 4,063,078 km (0.106 R)
  • M38: 4,180,512 km (0.084 R)
  • M39: 4,239,604 km (0.05 R)
  • M40: 4,392,941 km (0.095 R)
  • M41: 4,556,901 km (0.074 R)
  • M42: 4,926,258 km (0.115 R)
  • M43: 5,087,524 km (0.08 R)
  • M44: 5,250,586 km (0.119 R)
  • M45: 5,323,590 km (0.115 R)
  • M46: 5,378,642 km (0.067 R)
  • M47: 5,507,745 km (0.116 R)
  • M48: 5,581,945 km (0.104 R)
  • M49: 5,948,610 km (0.111 R)
  • M50: 6,139,646 km (0.118 R)
  • M51: 6,303,605 km (0.113 R)
  • M52: 6,420,292 km (0.085 R)
  • M53: 6,586,794 km (0.108 R)
  • M54: 6,695,253 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.6

Radius: 12.9

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.99 AU - 1.13 AU

Year: 716 Days

Day: 14.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 47.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (53)

Outer Limit: 63,187,484 km

  • M1: 224,247 km (0.12 R)
  • M2: 318,344 km (0.115 R)
  • M3: 425,756 km (0.104 R)
  • M4: 516,561 km (0.094 R)
  • M5: 607,068 km (0.083 R)
  • M6: 704,008 km (0.099 R)
  • M7: 792,121 km (0.047 R)
  • M8: 889,659 km (0.088 R)
  • M9: 1,025,045 km (0.116 R)
  • M10: 1,132,905 km (0.075 R)
  • M11: 1,281,156 km (0.112 R)
  • M12: 1,379,741 km (0.112 R)
  • M13: 1,539,063 km (0.063 R)
  • M14: 1,624,334 km (0.053 R)
  • M15: 1,711,549 km (0.073 R)
  • M16: 1,855,612 km (0.1 R)
  • M17: 1,939,985 km (0.038 R)
  • M18: 2,076,119 km (0.095 R)
  • M19: 2,350,781 km (0.04 R)
  • M20: 2,543,313 km (0.106 R)
  • M21: 2,645,489 km (0.066 R)
  • M22: 2,919,253 km (0.098 R)
  • M23: 3,009,909 km (0.102 R)
  • M24: 3,118,218 km (0.111 R)
  • M25: 3,270,509 km (0.106 R)
  • M26: 3,390,636 km (0.113 R)
  • M27: 3,529,911 km (0.092 R)
  • M28: 3,653,180 km (0.112 R)
  • M29: 3,760,142 km (0.069 R)
  • M30: 4,004,585 km (0.034 R)
  • M31: 4,124,264 km (0.078 R)
  • M32: 4,282,389 km (0.1 R)
  • M33: 4,471,181 km (0.071 R)
  • M34: 4,720,860 km (0.118 R)
  • M35: 4,876,741 km (0.104 R)
  • M36: 5,014,521 km (0.03 R)
  • M37: 5,153,647 km (0.084 R)
  • M38: 5,284,096 km (0.084 R)
  • M39: 5,415,593 km (0.108 R)
  • M40: 5,568,631 km (0.109 R)
  • M41: 5,868,874 km (0.045 R)
  • M42: 5,952,499 km (0.1 R)
  • M43: 6,036,723 km (0.081 R)
  • M44: 6,280,867 km (0.077 R)
  • M45: 6,398,750 km (0.116 R)
  • M46: 6,517,530 km (0.04 R)
  • M47: 6,604,297 km (0.11 R)
  • M48: 6,691,513 km (0.072 R)
  • M49: 7,066,255 km (0.076 R)
  • M50: 7,166,636 km (0.066 R)
  • M51: 7,267,465 km (0.098 R)
  • M52: 7,459,399 km (0.11 R)
  • M53: 7,744,532 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.5

Radius: 8.5

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.6 AU - 2.54 AU

Year: 1954 Days

Day: 12.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 25.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (75)

Outer Limit: 63,187,484 km

  • M1: 106,214 km (0.051 R)
  • M2: 183,856 km (0.057 R)
  • M3: 246,687 km (0.06 R)
  • M4: 467,793 km (0.063 R)
  • M5: 613,650 km (0.06 R)
  • M6: 671,545 km (0.115 R)
  • M7: 748,737 km (0.119 R)
  • M8: 866,022 km (0.087 R)
  • M9: 1,139,936 km (0.063 R)
  • M10: 1,202,168 km (0.052 R)
  • M11: 1,429,408 km (0.111 R)
  • M12: 1,600,248 km (0.118 R)
  • M13: 1,670,410 km (0.101 R)
  • M14: 1,777,821 km (0.078 R)
  • M15: 1,961,826 km (0.047 R)
  • M16: 2,088,087 km (0.068 R)
  • M17: 2,191,010 km (0.074 R)
  • M18: 2,256,385 km (0.066 R)
  • M19: 2,469,562 km (0.085 R)
  • M20: 2,564,855 km (0.038 R)
  • M21: 2,717,296 km (0.106 R)
  • M22: 2,815,731 km (0.09 R)
  • M23: 3,104,006 km (0.06 R)
  • M24: 3,236,700 km (0.03 R)
  • M25: 3,326,309 km (0.104 R)
  • M26: 3,553,997 km (0.117 R)
  • M27: 3,708,681 km (0.11 R)
  • M28: 3,786,771 km (0.104 R)
  • M29: 3,976,611 km (0.116 R)
  • M30: 4,137,129 km (0.041 R)
  • M31: 4,234,667 km (0.091 R)
  • M32: 4,349,259 km (0.045 R)
  • M33: 4,481,503 km (0.076 R)
  • M34: 4,615,094 km (0.116 R)
  • M35: 4,699,318 km (0.097 R)
  • M36: 4,800,895 km (0.113 R)
  • M37: 4,937,777 km (0.119 R)
  • M38: 5,302,796 km (0.102 R)
  • M39: 5,497,572 km (0.1 R)
  • M40: 5,622,786 km (0.116 R)
  • M41: 5,785,099 km (0.088 R)
  • M42: 5,839,553 km (0.113 R)
  • M43: 5,930,808 km (0.096 R)
  • M44: 6,188,565 km (0.071 R)
  • M45: 6,849,039 km (0.089 R)
  • M46: 7,041,871 km (0.058 R)
  • M47: 7,393,576 km (0.066 R)
  • M48: 7,452,667 km (0.073 R)
  • M49: 7,512,057 km (0.067 R)
  • M50: 7,671,080 km (0.12 R)
  • M51: 8,441,359 km (0.114 R)
  • M52: 8,627,459 km (0.065 R)
  • M53: 8,689,841 km (0.11 R)
  • M54: 8,752,223 km (0.114 R)
  • M55: 9,449,499 km (0.067 R)
  • M56: 9,621,088 km (0.098 R)
  • M57: 9,880,640 km (0.074 R)
  • M58: 11,122,003 km (0.078 R)
  • M59: 11,600,118 km (0.085 R)
  • M60: 12,084,965 km (0.11 R)
  • M61: 12,529,270 km (0.105 R)
  • M62: 12,860,181 km (0.095 R)
  • M63: 13,098,191 km (0.057 R)
  • M64: 14,065,192 km (0.102 R)
  • M65: 14,138,644 km (0.07 R)
  • M66: 14,730,753 km (0.1 R)
  • M67: 15,054,931 km (0.116 R)
  • M68: 15,180,294 km (0.102 R)
  • M69: 15,381,503 km (0.103 R)
  • M70: 15,482,482 km (0.106 R)
  • M71: 15,558,328 km (0.108 R)
  • M72: 15,659,606 km (0.087 R)
  • M73: 15,913,922 km (0.114 R)
  • M74: 16,015,948 km (0.083 R)
  • M75: 16,400,863 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.1

Radius: 12.9

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.73 AU - 2.57 AU

Year: 2068 Days

Day: 9.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 65.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (67)

Outer Limit: 63,187,484 km

  • M1: 160,818 km (0.036 R)
  • M2: 250,726 km (0.107 R)
  • M3: 377,435 km (0.048 R)
  • M4: 729,439 km (0.104 R)
  • M5: 931,097 km (0.111 R)
  • M6: 1,047,783 km (0.061 R)
  • M7: 1,410,110 km (0.088 R)
  • M8: 1,646,474 km (0.038 R)
  • M9: 1,759,421 km (0.03 R)
  • M10: 1,853,667 km (0.106 R)
  • M11: 2,014,934 km (0.084 R)
  • M12: 2,456,247 km (0.116 R)
  • M13: 2,767,411 km (0.076 R)
  • M14: 3,053,442 km (0.068 R)
  • M15: 3,206,630 km (0.111 R)
  • M16: 3,323,167 km (0.077 R)
  • M17: 3,480,843 km (0.12 R)
  • M18: 3,627,599 km (0.115 R)
  • M19: 3,886,104 km (0.099 R)
  • M20: 4,136,680 km (0.086 R)
  • M21: 4,493,471 km (0.079 R)
  • M22: 4,653,691 km (0.119 R)
  • M23: 4,786,085 km (0.06 R)
  • M24: 4,949,745 km (0.093 R)
  • M25: 5,085,131 km (0.06 R)
  • M26: 5,328,826 km (0.074 R)
  • M27: 5,467,653 km (0.084 R)
  • M28: 5,764,604 km (0.048 R)
  • M29: 6,098,956 km (0.115 R)
  • M30: 6,228,059 km (0.11 R)
  • M31: 6,390,821 km (0.085 R)
  • M32: 6,703,780 km (0.057 R)
  • M33: 6,954,506 km (0.109 R)
  • M34: 7,516,844 km (0.106 R)
  • M35: 7,777,444 km (0.115 R)
  • M36: 7,988,078 km (0.111 R)
  • M37: 8,093,993 km (0.09 R)
  • M38: 8,218,309 km (0.12 R)
  • M39: 8,831,062 km (0.12 R)
  • M40: 9,291,075 km (0.115 R)
  • M41: 9,477,324 km (0.102 R)
  • M42: 9,608,372 km (0.093 R)
  • M43: 9,721,169 km (0.104 R)
  • M44: 9,910,261 km (0.115 R)
  • M45: 10,043,403 km (0.048 R)
  • M46: 10,234,589 km (0.04 R)
  • M47: 10,349,779 km (0.115 R)
  • M48: 10,484,866 km (0.12 R)
  • M49: 10,659,297 km (0.051 R)
  • M50: 10,815,328 km (0.091 R)
  • M51: 11,188,724 km (0.052 R)
  • M52: 11,307,505 km (0.087 R)
  • M53: 11,546,263 km (0.077 R)
  • M54: 11,786,816 km (0.12 R)
  • M55: 11,927,887 km (0.102 R)
  • M56: 12,150,788 km (0.105 R)
  • M57: 12,252,514 km (0.066 R)
  • M58: 12,334,195 km (0.117 R)
  • M59: 12,580,134 km (0.031 R)
  • M60: 12,786,280 km (0.067 R)
  • M61: 12,931,240 km (0.085 R)
  • M62: 13,222,956 km (0.076 R)
  • M63: 13,390,655 km (0.115 R)
  • M64: 13,601,139 km (0.102 R)
  • M65: 13,876,549 km (0.038 R)
  • M66: 14,110,969 km (0.066 R)
  • M67: 14,389,819 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.5

Radius: 10.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.61 AU - 3.25 AU

Year: 3290 Days

Day: 12.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.4 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (65)

Outer Limit: 63,187,484 km

  • M1: 130,599 km (0.08 R)
  • M2: 227,838 km (0.041 R)
  • M3: 293,361 km (0.118 R)
  • M4: 357,689 km (0.099 R)
  • M5: 447,298 km (0.091 R)
  • M6: 684,111 km (0.05 R)
  • M7: 793,467 km (0.09 R)
  • M8: 867,219 km (0.099 R)
  • M9: 1,067,082 km (0.076 R)
  • M10: 1,340,696 km (0.113 R)
  • M11: 1,605,036 km (0.119 R)
  • M12: 1,722,021 km (0.105 R)
  • M13: 1,942,229 km (0.11 R)
  • M14: 2,021,516 km (0.112 R)
  • M15: 2,113,519 km (0.118 R)
  • M16: 2,183,381 km (0.068 R)
  • M17: 2,520,275 km (0.1 R)
  • M18: 2,860,760 km (0.113 R)
  • M19: 3,029,955 km (0.108 R)
  • M20: 3,175,813 km (0.093 R)
  • M21: 3,296,987 km (0.084 R)
  • M22: 3,405,895 km (0.071 R)
  • M23: 3,529,911 km (0.113 R)
  • M24: 3,925,448 km (0.12 R)
  • M25: 4,026,576 km (0.105 R)
  • M26: 4,261,146 km (0.115 R)
  • M27: 4,454,875 km (0.113 R)
  • M28: 4,575,600 km (0.071 R)
  • M29: 4,789,675 km (0.108 R)
  • M30: 4,913,392 km (0.08 R)
  • M31: 5,132,553 km (0.03 R)
  • M32: 5,259,263 km (0.034 R)
  • M33: 5,710,899 km (0.094 R)
  • M34: 5,792,878 km (0.114 R)
  • M35: 5,908,218 km (0.046 R)
  • M36: 6,124,686 km (0.032 R)
  • M37: 6,208,611 km (0.044 R)
  • M38: 6,514,090 km (0.092 R)
  • M39: 6,754,942 km (0.102 R)
  • M40: 7,034,092 km (0.109 R)
  • M41: 7,370,238 km (0.061 R)
  • M42: 7,531,355 km (0.028 R)
  • M43: 7,711,770 km (0.067 R)
  • M44: 7,875,430 km (0.085 R)
  • M45: 8,150,690 km (0.117 R)
  • M46: 8,597,689 km (0.102 R)
  • M47: 8,710,785 km (0.112 R)
  • M48: 8,843,179 km (0.116 R)
  • M49: 9,360,488 km (0.099 R)
  • M50: 9,515,621 km (0.094 R)
  • M51: 9,613,010 km (0.118 R)
  • M52: 10,006,003 km (0.084 R)
  • M53: 10,184,623 km (0.085 R)
  • M54: 10,344,244 km (0.098 R)
  • M55: 10,504,762 km (0.111 R)
  • M56: 11,154,765 km (0.029 R)
  • M57: 11,298,828 km (0.039 R)
  • M58: 11,630,187 km (0.089 R)
  • M59: 11,943,744 km (0.07 R)
  • M60: 12,238,901 km (0.105 R)
  • M61: 12,366,209 km (0.097 R)
  • M62: 12,472,573 km (0.112 R)
  • M63: 14,038,115 km (0.067 R)
  • M64: 14,126,976 km (0.074 R)
  • M65: 14,957,094 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.6

Radius: 5.2

Gravity: 12.67 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.67 AU - 11.75 AU

Year: 21402 Days

Day: 19.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 173.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (92)

Outer Limit: 63,187,484 km

  • M1: 137,480 km (0.074 R)
  • M2: 243,246 km (0.034 R)
  • M3: 284,834 km (0.051 R)
  • M4: 607,966 km (0.1 R)
  • M5: 687,402 km (0.041 R)
  • M6: 901,178 km (0.079 R)
  • M7: 1,062,893 km (0.042 R)
  • M8: 1,826,141 km (0.079 R)
  • M9: 2,462,381 km (0.117 R)
  • M10: 3,023,373 km (0.075 R)
  • M11: 3,954,021 km (0.107 R)
  • M12: 4,142,515 km (0.048 R)
  • M13: 4,372,596 km (0.072 R)
  • M14: 4,685,705 km (0.066 R)
  • M15: 5,668,263 km (0.093 R)
  • M16: 5,752,936 km (0.078 R)
  • M17: 7,347,649 km (0.08 R)
  • M18: 7,486,326 km (0.083 R)
  • M19: 7,579,376 km (0.032 R)
  • M20: 8,145,155 km (0.109 R)
  • M21: 8,481,451 km (0.034 R)
  • M22: 9,417,036 km (0.099 R)
  • M23: 10,644,936 km (0.08 R)
  • M24: 11,868,048 km (0.116 R)
  • M25: 12,085,264 km (0.114 R)
  • M26: 12,194,470 km (0.038 R)
  • M27: 12,468,683 km (0.043 R)
  • M28: 12,800,342 km (0.05 R)
  • M29: 15,973,761 km (0.054 R)
  • M30: 16,213,567 km (0.069 R)
  • M31: 16,273,705 km (0.086 R)
  • M32: 16,757,654 km (0.078 R)
  • M33: 16,879,277 km (0.058 R)
  • M34: 17,246,091 km (0.081 R)
  • M35: 19,056,076 km (0.101 R)
  • M36: 20,859,927 km (0.077 R)
  • M37: 21,187,696 km (0.09 R)
  • M38: 22,181,325 km (0.114 R)
  • M39: 22,650,314 km (0.117 R)
  • M40: 22,919,740 km (0.092 R)
  • M41: 23,597,867 km (0.073 R)
  • M42: 24,351,392 km (0.104 R)
  • M43: 25,531,569 km (0.115 R)
  • M44: 25,601,581 km (0.051 R)
  • M45: 26,022,849 km (0.059 R)
  • M46: 26,730,148 km (0.117 R)
  • M47: 28,019,083 km (0.116 R)
  • M48: 28,525,771 km (0.094 R)
  • M49: 28,743,884 km (0.108 R)
  • M50: 28,889,593 km (0.079 R)
  • M51: 29,548,272 km (0.12 R)
  • M52: 29,621,874 km (0.067 R)
  • M53: 31,553,931 km (0.104 R)
  • M54: 31,779,524 km (0.065 R)
  • M55: 33,526,379 km (0.11 R)
  • M56: 34,141,226 km (0.118 R)
  • M57: 35,460,230 km (0.108 R)
  • M58: 36,480,189 km (0.088 R)
  • M59: 37,668,893 km (0.079 R)
  • M60: 38,067,871 km (0.115 R)
  • M61: 38,388,160 km (0.094 R)
  • M62: 38,950,798 km (0.074 R)
  • M63: 39,597,060 km (0.12 R)
  • M64: 39,759,224 km (0.034 R)
  • M65: 40,491,506 km (0.119 R)
  • M66: 41,557,092 km (0.113 R)
  • M67: 42,964,508 km (0.102 R)
  • M68: 44,051,187 km (0.117 R)
  • M69: 45,146,992 km (0.08 R)
  • M70: 46,166,501 km (0.082 R)
  • M71: 46,764,594 km (0.039 R)
  • M72: 50,582,780 km (0.104 R)
  • M73: 50,670,744 km (0.055 R)
  • M74: 51,287,685 km (0.118 R)
  • M75: 51,729,897 km (0.109 R)
  • M76: 52,084,593 km (0.118 R)
  • M77: 53,242,929 km (0.084 R)
  • M78: 53,780,285 km (0.026 R)
  • M79: 54,049,711 km (0.034 R)
  • M80: 54,860,681 km (0.114 R)
  • M81: 57,225,673 km (0.032 R)
  • M82: 57,317,377 km (0.106 R)
  • M83: 59,252,725 km (0.102 R)
  • M84: 59,623,877 km (0.115 R)
  • M85: 59,716,777 km (0.079 R)
  • M86: 60,368,426 km (0.109 R)
  • M87: 60,554,974 km (0.084 R)
  • M88: 61,115,966 km (0.097 R)
  • M89: 61,303,263 km (0.118 R)
  • M90: 61,678,604 km (0.038 R)
  • M91: 62,148,790 km (0.091 R)
  • M92: 62,620,173 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 14,267 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit