February 1990 lunar eclipse explained

bgcolor=#e7dcc3 colspan=2Total Lunar Eclipse
February 9, 1990
(No photo)

The moon passes west to east (right to left) across the Earth's umbral shadow, shown in hourly intervals.
align=center bgcolor=#c0d0e0Series133 (25 of 71)
align=center bgcolor=#c0d0e0Gamma-0.4148
align=center bgcolor=#c0d0e0Magnitude1.0750
align=center bgcolor=#c0b0e0 colspan=2Duration (hr:mn:sc)
align=center bgcolor=#b0a0e0 Totality 42:18
align=center bgcolor=#c0a0e0 Partial 3:24:18
align=center bgcolor=#d0d0e0 Penumbral 5:39:36
align=center bgcolor=#a0d0e0 colspan=2Contacts (UTC)
align=center bgcolor=#d0d0e0 P1 16:22:14
align=center bgcolor=#c0a0e0 U1 17:29:53
align=center bgcolor=#b0a0e0 U2 18:50:53
align=center bgcolor=#a0a0e0Greatest 19:12:02
align=center bgcolor=#b0a0e0 U3 19:33:11
align=center bgcolor=#c0a0e0 U4 20:54:11
align=center bgcolor=#d0d0e0 P4 22:01:50
A total lunar eclipse took place on Friday, February 9, 1990, the first of two lunar eclipses in 1990.[1]

Visibility

It was visible from all of Africa, Europe, Asia and Australia. The eclipse is sighted over the Philippines since the one that happened on February 20, 1989.

Related eclipses

Eclipses of 1990

Lunar Saros 133

This lunar eclipse is part of series 133 of the Saros cycle, which repeats every 18 years and 11 days. Series 133 runs from the year 1557 until 2819. The previous eclipse of this series occurred on January 30, 1972 and the next will occur on February 21, 2008.

It is the 5th of 21 total lunar eclipses in series 133. The first was on December 28, 1917. The last (21st) will be on August 3, 2278. The longest two occurrences of this series (14th and 15th) will last for a total of 1 hour and 42 minutes on May 18, 2152 and May 30, 2170. Solar saros 140 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

Tritos series

Tzolkinex

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 140.

See also

Notes and References

  1. http://www.hermit.org/Eclipse/gen_stats.cgi?mode=query&page=full&qtype=type&body=L&saros=133 Hermit Eclipse: Saros cycle 133
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros