Tetrad (astronomy)
In astronomy, a tetrad is a set of four total lunar eclipses within two years.[1]
List of tetrad events
1949-2000
Saros | Date Viewing |
Type Chart |
Saros | Date Viewing |
Type Chart | |
---|---|---|---|---|---|---|
1949-1950 | ||||||
Descending node | Ascending node | |||||
121 | 1949 Apr 13 |
Total |
126 | 1949 Oct 07 |
Total | |
131 | 1950 Apr 02 |
Total |
136 | 1950 Sep 26 |
Total | |
1967-1968 | ||||||
Descending node | Ascending node | |||||
121 | 1967 Apr 24 |
Total |
126 | 1967 Oct 18 |
Total | |
131 | 1968 Apr 13 |
Total |
136 | 1968 Oct 6 |
Total | |
1985-1986 | ||||||
Descending node | Ascending node | |||||
121 | 1985 May 04 |
Total |
126 | 1985 Oct 28 |
Total | |
131 | 1986 Apr 24 |
Total |
136 | 1986 Oct 17 |
Total |
2001-2051
Saros | Date Viewing |
Type Chart |
Saros | Date Viewing |
Type Chart | |
---|---|---|---|---|---|---|
2003-2004 | ||||||
Descending node | Ascending node | |||||
121 |
2003 May 16 |
total |
126 |
2003 Nov 09 |
total | |
131 |
2004 May 04 |
total |
136 |
2004 Oct 28 |
total | |
2014-2015 | ||||||
Ascending node | Descending node | |||||
122 |
2014 Apr 15 |
Total |
127 |
2014 Oct 08 |
Total | |
132 |
2015 Apr 04 |
Total |
137 |
2015 Sep 28 |
Total | |
2032-2033 | ||||||
Ascending node | Descending node | |||||
122 | 2032 Apr 25 |
Total |
127 | 2032 Oct 18 |
Total | |
132 | 2033 Apr 14 |
Total |
137 | 2033 Oct 08 |
Total | |
2043-2044 | ||||||
Descending node | Ascending node | |||||
123 | 2043 Mar 25 |
Total |
128 | 2043 Sep 19 |
Total | |
133 | 2044 Mar 13 |
Total |
138 | 2044 Sep 07 |
Total | |
2050-2051 | ||||||
Ascending node | Descending node | |||||
122 | 2050 May 06 |
Total |
127 | 2050 Oct 30 |
Total | |
132 | 2051 Apr 26 |
Total |
137 | 2051 Oct 19 |
Total |
See also
- Total penumbral lunar eclipse#Summary frequency of total penumbral, total umbral and tetrad events 501–2500 for statistics by century
References
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