Saturday: The Eta Aquarid meteor shower peaks just before dawn this Tuesday. Since this meteor shower has a fairly broad peak range, you should start looking before dawn every morning this week. The moon is in the waning gibbous phase near the peak so it will be above the horizon, obscuring the dimmer meteors. Meteor showers are named after the constellation from which the meteors appear to originate. The meteors appear to come from a point in the constellation Aquarius near the star Eta. This point is about one fist held upright and at arm’s length above the east-southeastern horizon at 4:00 a.m. The Eta Aquarid meteors slam into the Earth at about 40 miles per second, often leaving a long trail behind them. The Eta Aquarid meteors are small rocks that have broken off Halley’s Comet. For more information about the Eta Aquarids, go to http://earthsky.org/?p=158833.
Sunday: Antares is right above the moon, low on the
southeastern horizon at 11:30 p.m.
Monday: Venus is one fist above the west-northwestern
horizon at 9:30 p.m. Jupiter is nearly four fists above the western horizon at
this time.
Tuesday: “Lately, I’ve been, I’ve been losing sleep.
Dreaming about the things that we could be. But baby, I’ve been, I’ve been
praying hard, said no more counting dollars. We’ll be counting 9,096 stars, yeah,
we’ll be counting 9,096 stars.” Luckily, artistic judgment prevailed over
scientific precision in the OneRepublic hit “Counting Stars”. According to the
Yale Bright Star Catalog, there are 9,096 stars visible to the naked eye across
the entire sky if you are observing from a very dark site. In the northern
United States, where a part of the sky is never visible, that number drops to
about 6,500. In the middle of a small city at mid-latitudes, like Ellensburg,
that number drops to a few hundred. No wonder someone has been losing sleep.
Learn more about the star count at http://goo.gl/nt8d80.
Wednesday: Give me an “M”. Give me a “3”. What does that
spell? “M3.” “Big deal,” you say. It was a big deal to French comet hunter
Charles Messier (pronounced Messy A). M3 was the 3rd comet
look-alike that Messier cataloged in the late 1700s. M3 is a globular cluster,
a cluster of over 100,000 stars that is 32,000 light years away. It is too dim
to be seen with the naked eye but is fairly easy to find with binoculars. First
find Arcturus five and a half fists above due southeast at 10:30 p.m. Move your
binoculars up one binocular field of view so two stars of nearly identical
brightness are in your field of view. When the top star is in the lower left
part of your field of view, there should be a fuzzy patch near the center of
your field of view. This is M3.
Thursday: Saturn is half a fist above the eastern horizon at
5:00 a.m.
Friday: This weekend, celebrate Mother’s Day with the big
mom of the sky, Virgo. Ancient Greeks and Romans associated this portion of the
sky with their own goddess of the harvest, either Demeter (Greeks) or Ceres
(Roman). Demeter was the mother of Persephone and Ceres was the mother of
Proserpina. According to myth, each of these daughters was abducted causing
their mothers great grief. The first star in Virgo rises in the afternoon.
Spica, the bright bluish star in the constellation rises at 7:00 p.m. and is
three fists above the south-southeastern horizon at 10:00 p.m.
The positional information in this column about stars and
planets is typically accurate for the entire week. For up-to-date information
about the night sky, go to https://nightsky.jpl.nasa.gov/planner.cfm.
All times are Pacific Time unless noted.
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