Lunar Eclipse

Total Moon Eclipse (May 4, 2004)

Type of Phenomenon
Lunar Eclipse



A total lunar eclipse observable from the Iberian Peninsula took place during the night of May 4. The entire eclipse was visible from eastern Europe, western Asia and most of Africa. Various stages of the eclipse was in progress at moonrise for observers in western Europe, including Iberian Peninsula, and South America. In the other side, the ingress partial phases was in progress at moonset for observers in eastern Asia and Australia. This eclipse could not be observed in North America and North-East of Asia. A very special place was northern Madagascar when the Moon lied in the zenith at the instant of greatest eclipse.



Phases of the eclipse

The first lunar eclipse of the year (the second one will take place next October) started at 17:50 UT on May 4th with the beginning of the penumbral phase. The first umbral contact occurred at 18:48 UT. Totality began at 19:52 UT and lasted until 21:08 UT (third contact). The partial and penumbral phases ended at 22:12 UT and 23:09 UT, respectively.

Fase Instant (TU)
Penumbral Eclipse Begins 00:34:59
Partial Eclipse Begins 01:42:59
Total Eclipse Begins 03:00:34
Eclipse Maximum 03:26:05
Total Eclipse Ends 03:51:32
Partial Eclipse Ends 05:09:07
Penumbral Eclipse Ends 06:17:16


This was the eclipse num.33 of Saros 131 and it took place in Libra, just 1.5º south of star Zuben Elgenubi (Alpha Librae). Although this eclipse is not central, the total phase have a large duration (76 minutes). This eclipse occurred 1 day before perigee of Moon's orbit so the Moon appeared rather large (33.1 arc-minutes).

Related Activities and News

Related Materials

Eclipse penumbral de Luna
Press Radio & TV
What is a penombral eclipse of the Moon?
The researcher talks to the radio show "La Tarde" in Cadena COPE about the different types of lunar eclipses, and the meaning of the penombral ones, in the frame of the first penombral lunar eclipse of 2020.
Josep Manel Carrasco, ICCUB-IEEC
Popularisation of Science