December nights are enhanced by the presence of the planets Jupiter and Saturn. The Moon will be in conjunction with Saturn on the 17th and with Jupiter on the 22nd. Mercury appears on the western horizon, just after sunset, in the first days of December, on the 4th it has its maximum height above the horizon, but very low, although this will make it difficult to locate. On the 9th, the waning moon will rise very close to the planet. The most important meteor shower in December is that of the Geminids, which reach their maximum activity on the night of the 13th and early morning of the 14th with an average of 150 meteors per hour, making this shower the most important of the year.
“The other meteor shower is that of the Ursids which reaches its maximum activity on the night of the 21st and early in the morning of the 22nd with an average of 10 meteors per hour.” Saul Grijalva
On Thursday, December 21, at 8:27 p.m., the sun reaches its lowest point in its annual path through the celestial sphere, marking the winter solstice, thus beginning the winter season for the northern hemisphere. , the nights are longer and the days shorter, on the 22nd we have the longest night of the year for our town of Guaymas Sonora, the sun rises at 7:10 in the morning and sets at 5:33 in the morning.
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