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July 2001 lunar eclipse

Partial lunar eclipse 5 July 2001 From Wikipedia, the free encyclopedia

July 2001 lunar eclipse
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A partial lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, July 5, 2001,[1] with an umbral magnitude of 0.4961. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 3.7 days before apogee (on July 9, 2001, at 7:20 UTC), the Moon's apparent diameter was smaller.[2]

Quick Facts Date, Gamma ...
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Visibility

The eclipse was completely visible over east Asia, Australia, and Antarctica, seen rising over east Africa and west and central Asia and setting over western North America.[3]

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The moon's hourly motion across the Earth's shadow in the constellation of Sagittarius.

Eclipse details

Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]

More information Parameter, Value ...
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Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.

More information June 21Ascending node (new moon), July 5Descending node (full moon) ...
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Eclipses in 2001

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 139

Inex

Triad

  • Preceded by: Lunar eclipse of September 4, 1914
  • Followed by: Lunar eclipse of May 5, 2088

Lunar eclipses of 1998–2002

This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]

The penumbral lunar eclipses on March 13, 1998 and September 6, 1998 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on May 26, 2002 and November 20, 2002 occur in the next lunar year eclipse set.

More information Lunar eclipse series sets from 1998 to 2002, Descending node ...

Saros 139

This eclipse is a part of Saros series 139, repeating every 18 years, 11 days, and containing 79 events. The series started with a penumbral lunar eclipse on December 9, 1658. It contains partial eclipses from June 3, 1947 through August 7, 2055; total eclipses from August 17, 2073 through May 30, 2542; and a second set of partial eclipses from June 9, 2560 through August 25, 2686. The series ends at member 75 as a penumbral eclipse on April 13, 3065.

The longest duration of totality will be produced by member 31 at 102 minutes, 39 seconds on November 2, 2199. All eclipses in this series occur at the Moon’s descending node of orbit.[6]

More information Greatest, First ...

Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

More information Series members 9–31 occur between 1801 and 2200: ...

Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

More information Series members between 1801 and 2187 ...

Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.

More information Series members between 1801 and 2200 ...

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 146.

More information June 30, 1992 ...
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See also

References

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