Correction
September 13, 1988
The time of opposition of sun, Earth, and Mars listed in the Research Notebook of Aug. 30 should have been 4 a.m. Sept. 28 (Greenwich time; 11 p.m. Eastern time). The Monitor regrets the error.
The time of opposition of sun, Earth, and Mars listed in the Research Notebook of Aug. 30 should have been 4 a.m. Sept. 28 (Greenwich time; 11 p.m. Eastern time). The Monitor regrets the error.