January 1999 lunar eclipse

A penumbral lunar eclipse took place on January 31, 1999, the first of two lunar eclipses in 1999.

This was a relatively rare total penumbral lunar eclipse with the moon passing entirely within the penumbral shadow without entering the darker umbral shadow.[1]

Visibility

Images


This simulated view compares this penumbral eclipse (left) to the full moon (right) as it appeared an hour before the eclipse.

Eclipses of 1999

Lunar year series

Saros series

Lunar Saros series 114, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 13 total lunar eclipses.

First Penumbral Lunar Eclipse: 0971 May 13

First Partial Lunar Eclipse: 1115 Aug 07

First Total Lunar Eclipse: 1458 Feb 28

First Central Lunar Eclipse: 1530 Apr 12

Greatest Eclipse of Lunar Saros 114: 1584 May 24

Last Central Lunar Eclipse: 1638 Jun 26

Last Total Lunar Eclipse: 1674 Jul 17

Last Partial Lunar Eclipse: 1890 Nov 26

Last Penumbral Lunar Eclipse: 2233 Jun 22

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[2] This lunar eclipse is related to two annular solar eclipses of Solar Saros 121.

January 26, 1990 February 7, 2008

See also

Notes
  1. Total Penumbral Lunar Eclipses, Jean Meeus, June 1980
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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