Mercury is our only evening planet.

The best planetary show this month is in the morning. The assembly of nearly all the visible planets will change through the coming mornings.

This Sunday morning there is a treat for those who rise early enough before sunrise.

Tonight’s full moon is called the Mud Moon on the Vineyard. The moon is in the constellation Virgo, not far from the constellation’s brightest star Spica. There are no planets to view in the evening sky which gives the moon even greater importance.

In other communities, the moon is called the Worm Moon. Worms are still dormant in this latitude. Mud is more familiar in March than worms, hence the name.

Venus

The two closest planets to the Earth are about to appear closest to each other on Tuesday morning. Venus and Mars, which we’ve been watching for weeks, are about to be almost close enough to talk to each other.

On Tuesday morning the two planets will be just less than four degrees apart. This is a great time to get the best of the show.

Get up early before sunrise. You’ll need a fairly clear view of the eastern sky. Venus is the easiest to spot. Take a second look for the considerably fainter Mars.

The bright planet Venus is easy to find in the hour before sunrise or earlier. Venus also is higher in the east too. Look more carefully nearby and the second brightest object is the red planet Mars. These two planets are getting closer and closer together. By mid-March they will be less than 4 degrees apart.

The show continues this month with the fainter planet Saturn appearing farther east, but it too will join with the other two.

The crescent moon spends the weekend in the morning sky with two planets, Mars and Venus.

Take a look early tomorrow morning before sunrise to see the moon form an elongated triangle with the two close to the southeastern horizon. The moon is in the zodiacal constellation Sagittarius and easy to see. Look more easterly for the brightest planet Venus. Underneath Venus you’ll see the red planet Mars.

The scene is more interesting on Sunday morning, when a thinner crescent moon appears right under Mars. You’ll need a clear unobstructed view of the horizon to see all three.

It is an unusual event for those who love astronomy. We have no visible evening planets. Jupiter is so low in the southwestern sky after sunset as to be unobservable. Saturn disappeared late last month and is now hidden in the sun’s glare.

For so long we had Jupiter, Saturn, Mars, Mercury and especially Venus hanging in our western sky. Now they are gone. All the action has shifted and will continue to shift to our morning sky.

Three planets shine together tomorrow morning before sunrise.

This weekend we’ll have extreme astronomical tides.