magnitude at opposition

magnitude at opposition

A measure of the brightness of a planet or asteroid when at opposition; it corresponds, normally, to the maximum brightness attained by the object during the apparition, since it is then viewed at its fullest phase and is near its closest point to the Earth.
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(km) 4.06 x [10.sup.5] Visual magnitude at opposition -12.74 Revolution period (days) 27.3217 Mean orbital velocity (km x [s.sup.-1]) 1.023 Recession rate from Earth (cm x [yr.sup.-1]) 3.8 Dates of Ramadan & Shawwal for 2019