Free Public Observing Night
To Be Announced
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
Be Updated Soon For 2015
Watch The Geminids
Catch a falling
night the Geminids meteor shower peaks on the night of December
13/14th, when meteor rates can be 60-120 meteors per hour are
possible. See Tonight's
sky under Meteors for map of where to look. This is one of the best meteor showers of the year and never seems to disappoint observers.
These meteors appear to radiate from the constellation Gemini the
Twins, the radiant point is about 1°
degree from the bright star Castor of the Gemini constellation.
Weather permitting, join YCAS astronomers and catch a falling
Sun sets at 4:42 p.m. The Sun is in the constellation
Moon this night rises at 11:43. It is in the constellation
Leo the Lion as it rises.
Visible for Public Observing evening sky
Mars sets at 8:08 p.m. as public observing begins. It is in the
constellation Capricornus low in the west southwest.
is visible in the west located in the constellation Aquarius the
Water Carrier, setting at 10:32 p.m..
is high in the southern sky about 37° degrees above Neptune
located in the constellation Pisces the Fish.
winter constellations are rising in the eastern evening sky, the autumnal
constellations are overhead, and summer constellation are all but
gone from the sky.
low in the
northwestern sky is the asterism known as the Summer Triangle
with its stars Vega, Deneb, and Altair
which form the distinctive triangle. Overhead this night you can
see the constellation Andromeda, lower in the west is Pegasus,
rising higher in the east is Taurus the Bull, Gemini and Orion are
also rising in the east. In the northern sky are the
constellations Cassiopeia, Ursa Major (Big Dipper) and Ursa Minor (Little
Dipper) with the north star Polaris just to mention a few of these
wonderful constellations the ancients knew so well. It takes light from
390 light years to reach us.
December 13, 2014 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