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2019, April 1-30: Mars Moves Through Taurus


This chart shows the motion of Mars against the starry background of Taurus during April 2019.

In the evening sky, Mars is moving through Taurus’ brighter star field. Follow the planet through a binocular as it passes between the Pleiades star cluster and the Hyades star cluster. The “V” of Taurus is nearly vertical this time of year. The stars of winter are making their final stand in the evening sky for the year, capped by an arc of stars – Procyon, Pollux, Castor and Capella.  The Gemini Twins stand high in the western sky with their arms around the other twin’s shoulders. Sirius is about 25° up in the southwest.  Watch it slowly begin to disappear into bright twilight.  Its last appearance in the evening sky occurs in mid-May.  The sun is in the sky for nearly 12.75 hours and the sky is dark, from the end of evening twilight to the beginning of morning twilight, for slightly over 8 hours.

In the notes that follow, the brightness of celestial objects is noted.  The lower the number the brighter the object.  The brightest stars have magnitudes that are rated 1 on the magnitude scale.  These can be seen from many bright areas.  As you move into suburban areas, magnitudes 2 and 3 are visible.  Fourth and fifth magnitude stars are visible from more rural areas.

Additionally, some stars have proper names as well as Greek letter designations, and sometimes numerical designations.

To determine the end of twilight in your area, find the local time in your area.  Add 100 minutes to your local sunset time.  By that time the sky is dark enough to find the constellations and Mars.

Look in the west about one-third of the way up in the sky, from horizon to overhead.  You’ll find Mars there along with the celestial backdrop of Taurus the Bull.


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