Of the 5 bright planets, Mars and Jupiter appear in the December 2017 predawn sky all month. Mercury joins them around the December solstice. Venus and Saturn will become lost in the sun’s glare this month.
By EarthSky in Astronomy Essentials | Earth|3 weeks ago
At the latitude of Miami, Florida or Brownsville, Texas in the U.S. – or, say, the city of Naha in Okinawa, Japan – the earliest sunsets of the year are happening now. How earliest sunset varies with latitude, but always comes before the winter solstice.