Star System Generated (Seed: 1766623645)

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: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.5

Radius: 12.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.99 AU - 1.01 AU

Year: 667 Days

Day: 5.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (19)

Outer Limit: 27,761,121 km

  • M1: 154,235 km (0.105 R)
  • M2: 232,026 km (0.115 R)
  • M3: 355,295 km (0.079 R)
  • M4: 474,674 km (0.113 R)
  • M5: 582,085 km (0.093 R)
  • M6: 712,535 km (0.049 R)
  • M7: 828,772 km (0.097 R)
  • M8: 1,005,746 km (0.096 R)
  • M9: 1,148,014 km (0.03 R)
  • M10: 1,317,359 km (0.104 R)
  • M11: 1,425,967 km (0.097 R)
  • M12: 1,964,370 km (0.078 R)
  • M13: 2,201,632 km (0.087 R)
  • M14: 2,643,993 km (0.083 R)
  • M15: 2,787,457 km (0.072 R)
  • M16: 2,866,894 km (0.06 R)
  • M17: 2,947,078 km (0.106 R)
  • M18: 3,064,213 km (0.118 R)
  • M19: 3,159,956 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.2

Radius: 12.3

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.17 AU - 1.17 AU

Year: 844 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 12.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (55)

Outer Limit: 27,761,121 km

  • M1: 153,936 km (0.105 R)
  • M2: 240,853 km (0.073 R)
  • M3: 379,829 km (0.108 R)
  • M4: 471,233 km (0.072 R)
  • M5: 776,563 km (0.104 R)
  • M6: 875,447 km (0.116 R)
  • M7: 992,582 km (0.1 R)
  • M8: 1,087,577 km (0.071 R)
  • M9: 1,250,788 km (0.098 R)
  • M10: 1,361,939 km (0.107 R)
  • M11: 1,732,194 km (0.12 R)
  • M12: 1,933,702 km (0.111 R)
  • M13: 2,011,343 km (0.039 R)
  • M14: 2,169,768 km (0.042 R)
  • M15: 2,314,279 km (0.104 R)
  • M16: 2,397,007 km (0.108 R)
  • M17: 2,584,453 km (0.108 R)
  • M18: 2,767,112 km (0.119 R)
  • M19: 2,864,949 km (0.028 R)
  • M20: 3,024,121 km (0.105 R)
  • M21: 3,278,737 km (0.12 R)
  • M22: 3,424,445 km (0.112 R)
  • M23: 3,625,654 km (0.052 R)
  • M24: 3,852,744 km (0.038 R)
  • M25: 4,062,181 km (0.048 R)
  • M26: 4,230,179 km (0.048 R)
  • M27: 4,377,832 km (0.107 R)
  • M28: 4,504,093 km (0.114 R)
  • M29: 4,937,627 km (0.109 R)
  • M30: 5,045,039 km (0.099 R)
  • M31: 5,165,465 km (0.102 R)
  • M32: 5,262,554 km (0.057 R)
  • M33: 5,532,428 km (0.116 R)
  • M34: 5,706,710 km (0.034 R)
  • M35: 5,807,090 km (0.101 R)
  • M36: 6,175,849 km (0.097 R)
  • M37: 6,304,802 km (0.111 R)
  • M38: 6,395,608 km (0.033 R)
  • M39: 6,552,387 km (0.063 R)
  • M40: 6,776,634 km (0.075 R)
  • M41: 6,856,370 km (0.106 R)
  • M42: 7,137,913 km (0.094 R)
  • M43: 7,246,222 km (0.082 R)
  • M44: 7,519,387 km (0.086 R)
  • M45: 7,643,404 km (0.079 R)
  • M46: 7,782,081 km (0.065 R)
  • M47: 8,089,954 km (0.115 R)
  • M48: 8,459,161 km (0.103 R)
  • M49: 8,559,392 km (0.066 R)
  • M50: 8,920,970 km (0.088 R)
  • M51: 9,023,145 km (0.098 R)
  • M52: 9,331,915 km (0.117 R)
  • M53: 9,704,115 km (0.04 R)
  • M54: 9,794,173 km (0.105 R)
  • M55: 10,157,247 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.3

Radius: 10.1

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.24 AU - 2.04 AU

Year: 1401 Days

Day: 13 Hours

Environment

Temp: -196 °C

Axial Tilt: 18.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (66)

Outer Limit: 27,761,121 km

  • M1: 136,284 km (0.036 R)
  • M2: 287,378 km (0.09 R)
  • M3: 352,901 km (0.096 R)
  • M4: 458,517 km (0.098 R)
  • M5: 534,064 km (0.11 R)
  • M6: 614,698 km (0.091 R)
  • M7: 775,515 km (0.081 R)
  • M8: 898,335 km (0.117 R)
  • M9: 989,141 km (0.032 R)
  • M10: 1,099,245 km (0.08 R)
  • M11: 1,230,442 km (0.106 R)
  • M12: 1,402,031 km (0.12 R)
  • M13: 1,730,847 km (0.088 R)
  • M14: 1,846,038 km (0.084 R)
  • M15: 1,953,748 km (0.092 R)
  • M16: 2,053,680 km (0.051 R)
  • M17: 2,175,901 km (0.077 R)
  • M18: 2,332,081 km (0.048 R)
  • M19: 2,481,230 km (0.114 R)
  • M20: 2,666,732 km (0.094 R)
  • M21: 2,778,032 km (0.067 R)
  • M22: 2,936,457 km (0.031 R)
  • M23: 3,203,339 km (0.037 R)
  • M24: 3,321,821 km (0.054 R)
  • M25: 3,551,154 km (0.079 R)
  • M26: 3,710,925 km (0.086 R)
  • M27: 3,923,653 km (0.08 R)
  • M28: 4,037,946 km (0.105 R)
  • M29: 4,101,974 km (0.086 R)
  • M30: 4,374,242 km (0.098 R)
  • M31: 4,453,229 km (0.108 R)
  • M32: 4,545,980 km (0.04 R)
  • M33: 4,666,107 km (0.111 R)
  • M34: 4,800,745 km (0.061 R)
  • M35: 4,895,890 km (0.119 R)
  • M36: 5,032,772 km (0.065 R)
  • M37: 5,157,087 km (0.111 R)
  • M38: 5,226,650 km (0.091 R)
  • M39: 5,679,034 km (0.025 R)
  • M40: 5,895,502 km (0.112 R)
  • M41: 6,085,342 km (0.101 R)
  • M42: 6,606,392 km (0.083 R)
  • M43: 6,788,452 km (0.058 R)
  • M44: 7,172,919 km (0.109 R)
  • M45: 7,564,566 km (0.061 R)
  • M46: 8,173,130 km (0.106 R)
  • M47: 8,384,961 km (0.119 R)
  • M48: 8,483,396 km (0.087 R)
  • M49: 8,598,586 km (0.044 R)
  • M50: 8,797,402 km (0.089 R)
  • M51: 8,914,088 km (0.089 R)
  • M52: 9,454,137 km (0.084 R)
  • M53: 9,866,279 km (0.08 R)
  • M54: 10,179,088 km (0.043 R)
  • M55: 10,284,106 km (0.116 R)
  • M56: 10,424,728 km (0.105 R)
  • M57: 10,495,338 km (0.097 R)
  • M58: 10,654,510 km (0.043 R)
  • M59: 10,778,975 km (0.097 R)
  • M60: 11,209,518 km (0.091 R)
  • M61: 11,354,179 km (0.058 R)
  • M62: 11,481,337 km (0.052 R)
  • M63: 11,682,098 km (0.099 R)
  • M64: 11,865,654 km (0.088 R)
  • M65: 12,087,209 km (0.088 R)
  • M66: 12,328,660 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.1

Radius: 11.5

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.9 AU - 2.34 AU

Year: 2058 Days

Day: 6.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (53)

Outer Limit: 27,761,121 km

  • M1: 144,661 km (0.03 R)
  • M2: 256,112 km (0.065 R)
  • M3: 419,772 km (0.069 R)
  • M4: 507,735 km (0.032 R)
  • M5: 665,711 km (0.068 R)
  • M6: 754,572 km (0.12 R)
  • M7: 879,935 km (0.082 R)
  • M8: 1,033,572 km (0.027 R)
  • M9: 1,160,281 km (0.092 R)
  • M10: 1,445,714 km (0.072 R)
  • M11: 1,703,621 km (0.115 R)
  • M12: 1,795,922 km (0.112 R)
  • M13: 1,881,193 km (0.096 R)
  • M14: 2,056,073 km (0.086 R)
  • M15: 2,310,240 km (0.104 R)
  • M16: 2,488,561 km (0.038 R)
  • M17: 2,652,071 km (0.029 R)
  • M18: 2,779,528 km (0.102 R)
  • M19: 2,899,057 km (0.113 R)
  • M20: 2,989,863 km (0.077 R)
  • M21: 3,091,889 km (0.091 R)
  • M22: 3,257,643 km (0.1 R)
  • M23: 3,458,254 km (0.083 R)
  • M24: 3,772,559 km (0.076 R)
  • M25: 3,938,762 km (0.045 R)
  • M26: 4,278,499 km (0.118 R)
  • M27: 4,533,863 km (0.078 R)
  • M28: 4,627,960 km (0.109 R)
  • M29: 4,770,227 km (0.061 R)
  • M30: 5,120,436 km (0.039 R)
  • M31: 5,255,373 km (0.074 R)
  • M32: 5,354,407 km (0.12 R)
  • M33: 5,579,253 km (0.088 R)
  • M34: 5,654,949 km (0.079 R)
  • M35: 5,756,376 km (0.105 R)
  • M36: 5,871,268 km (0.114 R)
  • M37: 6,038,518 km (0.094 R)
  • M38: 6,430,614 km (0.054 R)
  • M39: 6,589,786 km (0.063 R)
  • M40: 6,817,624 km (0.08 R)
  • M41: 6,993,551 km (0.11 R)
  • M42: 7,253,402 km (0.086 R)
  • M43: 7,712,369 km (0.106 R)
  • M44: 7,952,473 km (0.09 R)
  • M45: 8,052,105 km (0.105 R)
  • M46: 8,209,482 km (0.088 R)
  • M47: 8,863,823 km (0.098 R)
  • M48: 8,937,575 km (0.06 R)
  • M49: 9,279,556 km (0.072 R)
  • M50: 9,429,603 km (0.114 R)
  • M51: 9,535,069 km (0.083 R)
  • M52: 9,960,974 km (0.085 R)
  • M53: 10,269,146 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655

Radius: 11.3

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.45 AU - 2.69 AU

Year: 2747 Days

Day: 12.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (68)

Outer Limit: 27,761,121 km

  • M1: 238,459 km (0.09 R)
  • M2: 323,431 km (0.053 R)
  • M3: 410,197 km (0.058 R)
  • M4: 563,984 km (0.068 R)
  • M5: 702,512 km (0.06 R)
  • M6: 933,640 km (0.095 R)
  • M7: 1,037,461 km (0.04 R)
  • M8: 1,178,532 km (0.066 R)
  • M9: 1,794,726 km (0.093 R)
  • M10: 2,558,423 km (0.061 R)
  • M11: 2,920,749 km (0.068 R)
  • M12: 3,045,214 km (0.101 R)
  • M13: 3,235,353 km (0.074 R)
  • M14: 3,429,382 km (0.087 R)
  • M15: 3,644,055 km (0.074 R)
  • M16: 3,863,066 km (0.098 R)
  • M17: 4,017,451 km (0.1 R)
  • M18: 4,208,786 km (0.072 R)
  • M19: 4,332,055 km (0.098 R)
  • M20: 4,438,868 km (0.12 R)
  • M21: 4,582,482 km (0.108 R)
  • M22: 4,654,887 km (0.027 R)
  • M23: 4,856,096 km (0.062 R)
  • M24: 4,966,949 km (0.083 R)
  • M25: 5,534,523 km (0.073 R)
  • M26: 5,767,297 km (0.112 R)
  • M27: 6,043,006 km (0.088 R)
  • M28: 6,202,627 km (0.101 R)
  • M29: 6,751,352 km (0.099 R)
  • M30: 7,464,485 km (0.119 R)
  • M31: 7,592,840 km (0.117 R)
  • M32: 7,830,102 km (0.082 R)
  • M33: 7,960,551 km (0.064 R)
  • M34: 8,047,917 km (0.062 R)
  • M35: 8,511,969 km (0.089 R)
  • M36: 8,668,449 km (0.092 R)
  • M37: 9,258,612 km (0.064 R)
  • M38: 9,442,767 km (0.104 R)
  • M39: 9,979,225 km (0.119 R)
  • M40: 10,144,381 km (0.118 R)
  • M41: 10,501,471 km (0.115 R)
  • M42: 10,717,790 km (0.106 R)
  • M43: 10,984,074 km (0.08 R)
  • M44: 11,228,218 km (0.119 R)
  • M45: 12,171,881 km (0.115 R)
  • M46: 12,272,710 km (0.09 R)
  • M47: 12,449,834 km (0.07 R)
  • M48: 12,576,843 km (0.09 R)
  • M49: 12,704,300 km (0.034 R)
  • M50: 13,218,468 km (0.11 R)
  • M51: 13,504,200 km (0.101 R)
  • M52: 14,774,735 km (0.085 R)
  • M53: 14,882,295 km (0.083 R)
  • M54: 15,017,083 km (0.12 R)
  • M55: 15,260,928 km (0.063 R)
  • M56: 15,424,288 km (0.115 R)
  • M57: 15,807,409 km (0.048 R)
  • M58: 16,055,442 km (0.076 R)
  • M59: 16,695,122 km (0.1 R)
  • M60: 16,891,544 km (0.119 R)
  • M61: 18,143,230 km (0.053 R)
  • M62: 18,402,932 km (0.044 R)
  • M63: 19,072,382 km (0.068 R)
  • M64: 19,189,517 km (0.046 R)
  • M65: 19,277,630 km (0.059 R)
  • M66: 19,513,097 km (0.037 R)
  • M67: 19,749,612 km (0.068 R)
  • M68: 19,838,622 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 11.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.67 AU - 3.55 AU

Year: 3657 Days

Day: 6 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (66)

Outer Limit: 27,761,121 km

  • M1: 180,265 km (0.075 R)
  • M2: 277,803 km (0.098 R)
  • M3: 391,797 km (0.044 R)
  • M4: 512,672 km (0.118 R)
  • M5: 594,203 km (0.091 R)
  • M6: 680,820 km (0.098 R)
  • M7: 842,086 km (0.11 R)
  • M8: 932,593 km (0.047 R)
  • M9: 1,153,998 km (0.103 R)
  • M10: 1,403,677 km (0.117 R)
  • M11: 1,546,393 km (0.094 R)
  • M12: 1,694,196 km (0.104 R)
  • M13: 1,775,876 km (0.092 R)
  • M14: 1,882,839 km (0.029 R)
  • M15: 2,041,263 km (0.089 R)
  • M16: 2,384,740 km (0.053 R)
  • M17: 2,503,371 km (0.032 R)
  • M18: 2,678,251 km (0.118 R)
  • M19: 2,955,456 km (0.097 R)
  • M20: 3,111,935 km (0.072 R)
  • M21: 3,300,428 km (0.117 R)
  • M22: 3,507,771 km (0.032 R)
  • M23: 3,658,566 km (0.053 R)
  • M24: 3,765,378 km (0.088 R)
  • M25: 3,982,146 km (0.069 R)
  • M26: 4,123,815 km (0.057 R)
  • M27: 4,428,396 km (0.099 R)
  • M28: 4,526,084 km (0.067 R)
  • M29: 4,657,431 km (0.051 R)
  • M30: 5,093,359 km (0.114 R)
  • M31: 5,368,170 km (0.081 R)
  • M32: 5,524,949 km (0.118 R)
  • M33: 5,612,763 km (0.054 R)
  • M34: 5,825,191 km (0.106 R)
  • M35: 6,004,410 km (0.095 R)
  • M36: 6,405,033 km (0.105 R)
  • M37: 6,497,335 km (0.068 R)
  • M38: 7,117,567 km (0.105 R)
  • M39: 7,697,858 km (0.114 R)
  • M40: 7,795,994 km (0.086 R)
  • M41: 7,953,969 km (0.116 R)
  • M42: 8,033,406 km (0.101 R)
  • M43: 8,113,141 km (0.119 R)
  • M44: 8,213,073 km (0.106 R)
  • M45: 8,373,890 km (0.117 R)
  • M46: 9,697,832 km (0.111 R)
  • M47: 10,146,326 km (0.118 R)
  • M48: 10,254,186 km (0.066 R)
  • M49: 10,384,037 km (0.107 R)
  • M50: 10,470,953 km (0.042 R)
  • M51: 10,842,854 km (0.071 R)
  • M52: 11,085,950 km (0.068 R)
  • M53: 11,375,422 km (0.088 R)
  • M54: 11,465,031 km (0.099 R)
  • M55: 12,030,511 km (0.073 R)
  • M56: 12,167,543 km (0.068 R)
  • M57: 12,282,135 km (0.094 R)
  • M58: 12,512,366 km (0.05 R)
  • M59: 13,518,860 km (0.095 R)
  • M60: 13,685,213 km (0.109 R)
  • M61: 13,923,971 km (0.119 R)
  • M62: 16,589,805 km (0.1 R)
  • M63: 16,793,408 km (0.1 R)
  • M64: 16,946,746 km (0.093 R)
  • M65: 17,023,490 km (0.119 R)
  • M66: 17,331,961 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176

Radius: 10.7

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.72 AU - 6.36 AU

Year: 8695 Days

Day: 5.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 10.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (68)

Outer Limit: 27,761,121 km

  • M1: 262,544 km (0.112 R)
  • M2: 362,476 km (0.101 R)
  • M3: 451,337 km (0.101 R)
  • M4: 580,440 km (0.108 R)
  • M5: 758,162 km (0.115 R)
  • M6: 1,006,794 km (0.079 R)
  • M7: 1,127,370 km (0.098 R)
  • M8: 1,339,499 km (0.08 R)
  • M9: 1,595,910 km (0.107 R)
  • M10: 1,934,450 km (0.039 R)
  • M11: 2,421,242 km (0.107 R)
  • M12: 2,829,943 km (0.077 R)
  • M13: 3,381,510 km (0.104 R)
  • M14: 4,052,307 km (0.096 R)
  • M15: 4,537,303 km (0.12 R)
  • M16: 5,683,074 km (0.034 R)
  • M17: 5,780,462 km (0.073 R)
  • M18: 5,902,982 km (0.06 R)
  • M19: 6,150,567 km (0.074 R)
  • M20: 6,225,515 km (0.112 R)
  • M21: 6,401,592 km (0.046 R)
  • M22: 7,280,330 km (0.094 R)
  • M23: 7,680,055 km (0.079 R)
  • M24: 7,841,920 km (0.079 R)
  • M25: 8,306,871 km (0.044 R)
  • M26: 8,696,573 km (0.096 R)
  • M27: 8,921,867 km (0.1 R)
  • M28: 9,234,826 km (0.051 R)
  • M29: 9,551,525 km (0.091 R)
  • M30: 9,667,613 km (0.067 R)
  • M31: 10,136,453 km (0.069 R)
  • M32: 10,254,784 km (0.09 R)
  • M33: 10,373,715 km (0.073 R)
  • M34: 10,914,212 km (0.109 R)
  • M35: 11,897,668 km (0.099 R)
  • M36: 12,273,757 km (0.104 R)
  • M37: 12,558,442 km (0.118 R)
  • M38: 13,620,737 km (0.062 R)
  • M39: 13,718,723 km (0.1 R)
  • M40: 13,948,356 km (0.079 R)
  • M41: 14,047,240 km (0.063 R)
  • M42: 14,478,082 km (0.075 R)
  • M43: 14,745,264 km (0.109 R)
  • M44: 15,762,230 km (0.114 R)
  • M45: 16,002,783 km (0.1 R)
  • M46: 16,626,756 km (0.069 R)
  • M47: 16,766,630 km (0.109 R)
  • M48: 16,836,642 km (0.108 R)
  • M49: 17,365,022 km (0.117 R)
  • M50: 18,582,748 km (0.088 R)
  • M51: 18,727,858 km (0.071 R)
  • M52: 18,982,623 km (0.114 R)
  • M53: 19,092,279 km (0.111 R)
  • M54: 19,385,490 km (0.087 R)
  • M55: 19,828,001 km (0.115 R)
  • M56: 19,976,252 km (0.029 R)
  • M57: 21,327,271 km (0.115 R)
  • M58: 21,745,846 km (0.04 R)
  • M59: 22,475,434 km (0.058 R)
  • M60: 22,707,461 km (0.065 R)
  • M61: 22,785,102 km (0.072 R)
  • M62: 23,135,012 km (0.103 R)
  • M63: 23,408,476 km (0.071 R)
  • M64: 23,604,450 km (0.117 R)
  • M65: 24,116,523 km (0.078 R)
  • M66: 24,672,130 km (0.116 R)
  • M67: 25,111,648 km (0.12 R)
  • M68: 27,388,977 km (0.08 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 16,707 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit