A penumbral lunar eclipse took place on Sunday, July 15, 1973, the third of four lunar eclipses in 1973, the first was a penumbral lunar eclipse on Thursday, January 18, the second was a penumbral lunar eclipse on Friday, June 15, and the last being with a partial lunar eclipse on Monday, December 10.
This is the last lunar eclipse of Lunar eclipse set 1969–1973, but it is the first lunar eclipse of Saros series 148.
Visibility
Relation to other lunar eclipses
Eclipses in 1973
An annular solar eclipse on Thursday, 4 January 1973. A penumbral lunar eclipse on Thursday, 18 January 1973. A penumbral lunar eclipse on Friday, 15 June 1973. A total solar eclipse on Saturday, 30 June 1973. A penumbral lunar eclipse on Sunday, 15 July 1973. A partial lunar eclipse on Monday, 10 December 1973. An annular solar eclipse on Monday, 24 December 1973.
Lunar year series
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two partial solar eclipses of Solar Saros 155 on the third and fourth columns.