Archive for May 20, 2019

05/20/2019 – Ephemeris – Dark evening skies again and a look at Virgo

May 20, 2019 Comments off

Ephemeris for Monday, May 20th. Today the Sun will be up for 15 hours even, setting at 9:09, and it will rise tomorrow at 6:08. The Moon, 2 days past full, will rise at 11:10 this evening.

One of the large constellations we see in the south at 11 p.m. can be found using the Big Dipper overhead, follow the arc of the handle to the bright star Arcturus, the straighten the arc to a spike to reach Spica, a bright blue-white star in the south. Spica is the brightest star in the constellation Virgo the virgin. She represents the goddess of the harvest, Virgo is holding a sheaf of wheat in depictions of her, and Spica is placed at the head of the sheaf. In the space between Spica and Leo the lion to her upper right is, a great cluster just below naked eye visibility. The Virgo cluster of galaxies. Inside that cluster is galaxy M87 in whose center lies a black hole with the mass of 6.5 billion suns that was imaged last month.

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


Virgo finder

Virgo finder animation for 11 p.m. May 20, 2019. Click on the image to enlarge. Created using Stellarium.

Brighter members of the Virgo Cluster. Created using Stellarium.

Brighter members of the Virgo Cluster. Created using Stellarium. Open circles are galaxies, circles with crosses are globular star clusters, outlying members of our Milky Way galaxy.  M87 is just above center in that knot of galaxies.  Created using Stellarium.

Virgo Cluster

A closer look at some of the galaxies in the heart of the Virgo Cluster. M87 is near the center. Created with Cartes du Ciel (Sky Charts).