Home > Constellations, Ephemeris Program, Galaxies > 05/16/2017 – Ephemeris – The Virgo Cluster of Galaxies

05/16/2017 – Ephemeris – The Virgo Cluster of Galaxies

May 16, 2017

Ephemeris for Tuesday, May 16th.  Today the Sun will be up for 14 hours and 51 minutes, setting at 9:05, and it will rise tomorrow at 6:12.  The Moon, 2 days before last quarter, will rise at 1:43 tomorrow morning.

Yesterday I talked about the constellation of Virgo the virgin.  When we are looking at the constellation of Virgo, we are looking out the thin side of our galaxy, the Milky Way.  The Milky Way galaxy is a flat disk.  When we look into the disk we see the milky band we call the Milky Way. That band, what we can see of if is now low in the north, So the stars are much more sparse with the exception of those relatively close to us, like those of the big Dipper.  Beyond the stars of Virgo is a huge cluster of over a thousand galaxies.   Charles Messier, a comet hunter of the late 18th century, ran into quite a few fuzzy spots between Virgo and Leo to the upper right.  Because they didn’t move in relation to the stars, they couldn’t be comets, so he added them to his list of nuisance objects, which we now enjoy looking at.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Virgo cluster

Some of the brighter members of the Virgo Cluster (of galaxies) as tiny red ovals. The galaxies marked with an ‘M’ number are part of Charles Messier’s catalog. It took a telescope of 8 inch diameter for me to spot them. Someone with better vision, like Messier himself can spot them with a smaller telescope. Created using Cartes du Ciel (Sky Charts).  Click on image to enlarge.

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