Free Public Observing Night
June 13, 2015
p.m. to 10:00 p.m.
Rudy Park, York, PA. Observatory
York County Astronomical Society, Inc. is a non-profit organization
dedicated to the advancement of the science of astronomy.
Expand your mind by taking in the expanse of the universe.
Come and view the night skies with us through one of our telescopes and let our experienced
members guide you on a tour of celestial wonders, including stars, planets,
nebulae, and the moon. You are also invited to bring your own telescope and
share your experiences with other amateur astronomers. Star Charts are available to help your exploration of the nighttime sky.
observing activities at John Rudy Park, if the weather is questionable, please check our voice message at
for notice of any late cancellation or for an updated
status, check this website.
Observatory See: Directions
If it is clear or mostly clear, the activity will
occur as scheduled. If it is completely cloudy, raining or snowing, the activity will be cancelled.
information on events, scheduling a private party star watch, directions
to the observing site, or for general Society information
please email YCAS at: E-Mail
The 2015 Night Sky for
COMING IN JUNE FOR BELOW
Sun June 13th is in the constellation Aries the Ram, the Sun sets at
Moon on May 9th is not visible for public observing rising around
midnight, it is located in the constellation Sagittarius. Last Quarter
Moon occurs on the 11th at 6:36 am Eastern Daylight Time.
Visible for Public Observing evening sky
at magnitude +0.8 is visible just after sunset low on the
horizon in the west northwest, setting at 9:58 p.m. Mercury
is in the constellation Taurus the Bull. You need
a clear flat horizon to view Mercury. Mercury below
shows a disk with a phase of 29.66% lit.
shines brightly in the constellation Gemini the Twins in the west
setting around 11:45 p.m. Venus below shows a disk with a phase of
is high in the west southwest in the constellation Cancer the Crab
setting around 2:12 a.m.. Three of Jupiter's Moons are visible as
public observing begins then at about 9:13 p.m. a fourth Moon, Ganymede
will reappear from eclipse of Jupiter. Check out some of Jupiter's Moons through a YCAS
telescope. Below is view of Jupiter and Moons around 9:40 on
public observing night. The four bright "Galilean" moons
of Jupiter left to right, Europa Io, Ganymede and Callisto.
The "GRS" Great Red Spot is just starting to come into
is just starting to rise as public observing ends.
Q2 Lovejoy is a faint Comet that is located in the constellation
Cepheus about 8 degrees below Polaris the pole star. If you have a
goto telescope you can use this ephemeris: 2014
winter constellations are sinking low in the west soon to be lost
from view as the spring constellations are now visible rising in the
May evening sky
as twilight falls. You can still see the bright star Sirius
twinkling brightly low in the southwest in the constellation Canis
Major right after sunset. Gemini is in the west. Leo the Lion is
visible high overhead. Constellations Bootes and Virgo are in the
south eastern sky with Libra rising behind them. The Big Dipper is
high in the northern sky as evening twilight ends. This time of the year is
a good time to look for the more elusive stars of the Little Dipper. Find the two stars that form the outer edge of the “bowl” of the Big Dipper, which stand almost vertically at around 9:30 pm. These two stars, Merak and Dubhe, are commonly called “The Pointers” since a line passing through them and extending toward the horizon point directly to Polaris, the North Star. Polaris marks the end of the “handle” of the Little Dipper.
June 13, 2015 Night Sky Below
a memorable tour with members of the York County Astronomical Society of
Galaxies, planets, the moon and the constellations of the night sky.
and Constellations Astronomical Pronunciation Guide
the Wonders of your Universe
Picture of the Day
Our sun is almost one million miles in diameter and a million earths would fit in it.
It takes light eight minutes to reach us from the sun.
The last star shown in video is VY Canis Majoris which takes light about 5000 years to reach us
that is light traveling at 186,000 miles per second x 60 seconds
in a minute x 60 minutes in an hour x 365 days in a year x 5000 years.
VY Canis Majoris is (almost 2 billion ) 1.7 billion miles in diameter.
POLLUTION OF OUR NIGHT SKIES
What does light pollution look like?
What does your nighttime sky look like? Try this fun interactive game to see how light
pollution affects the stars you see at night:
Dark Sky Association
Weather and Directions