May 1985 lunar eclipse

Total Lunar Eclipse
May 4, 1985
(No photo)
Lunar eclipse chart close-1985May04.png
The moon passes west to east (right to left) across the Earth's umbral shadow, shown in hourly intervals.
Series 121 (54 of 84)
Duration (hr:mn:sc)
Totality
Partial
Penumbral
Contacts
P1 UTC
U1
U2
Greatest
U3
U4
P4

A total lunar eclipse took place on May 4, 1985, the first of two total lunar eclipses in 1985, the second being on October 28, 1985.[1]

This lunar eclipse is first of a tetrad, four total lunar eclipses in series. The last series was in 1967 and 1968, starting with an April 1967 lunar eclipse, while the next was in 2003 and 2004, starting with a May 2003 lunar eclipse.

VisibilityEdit

It is seen rising over the whole of Africa, Middle East, Europe and Asia. The eclipse was sighted over the Philippines at night. The second also followed on October 28, 1985.

 

Related eclipsesEdit

Lunar year seriesEdit

Lunar eclipse series sets from 1984-1987
Descending node   Ascending node
Saros Date
Viewing
Type
Chart
Saros Date
Viewing
Type
Chart
111 1984 May 15
 
Penumbral
 
116 1984 Nov 08
 
Penumbral
 
121 1985 May 04
 
Total
 
126 1985 Oct 28
 
Total
 
131 1986 Apr 24
 
Total
 
136 1986 Oct 17
 
Total
 
141 1987 Apr 14
 
Penumbral
 
146 1987 Oct 07
 
Penumbral
 
Last set 1984 Jun 13 Last set 1983 Dec 20
Next set 1988 Mar 03 Next set 1988 Aug 27

Metonic seriesEdit

This eclipse is the second of four Metonic cycle lunar eclipses on the same date, May 4–5, each separated by 19 years:

The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the earth's shadow will in nearly the same location relative to the background stars.

Saros seriesEdit

It is a member of Saros cycle 121.

Half-Saros cycleEdit

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 128.

April 29, 1976 May 10, 1994
   

See alsoEdit

NotesEdit

  1. ^ Hermit Eclipse: Saros cycle 121
  2. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

External linksEdit