Public Observing October
p.m. to 10:00 p.m.
Rudy Park, York, PA. Observatory
will be an Astronomy Program in the Observatory if cloudy.
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
717 759 YCAS (9227)
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 changed to an astronomical
presentation in observatory.
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
Night Sky October 14, 2017 to be updated soon below.
Sun on September 9, 2017 is in the constellation Leo "Leo the
setting at 7:25 pm.
Click on Moon to
evening sky September 9th finds the Moon rising at 9:40 pm in the east located
in the constellation Cetus "The Whale".
Phase of the Moon on September 9, 2017: will be 83.38% of the Moon's visible disk illuminated.
Moon known as the Full Corn Moon or Full Harvest Moon occurred on
is located low in the west southwest about 8 degrees above the
horizon in the constellation Virgo "The
Maiden". Four of Jupiter's Moons are visible this night. Jupiter
sets at 8:54 pm. Jupiter is easily visible soon after
sunset being the brightest object. Jupiter is about 3 degrees
right of Virgo's bright star Spica.
is in the south southwest this night located in the constellation Ophiuchus.
Saturn sets at 12:56 am.
is in the constellation Aquarius and is up after sunset visible in
the east southeast. Neptune sets around 6:37 am.
is located in Pisces and rises at 8:57 pm. It will be about 9 degrees above and slightly
right of the Moon.
for 9:00 P.M.
Dipper is visible low in the northwest horizon. Upper right of the Big Dipper is the Little Dipper which
contains Polaris the north star. See How to use the Big
Dipper to find Polaris the north star. See: Finding
If you follow the curved handle of the Big Dipper it leads to the
bright star Arcturus in the constellation Bootes "the
Herdsman" high in the west northwest. Hercules "the Son of
Jupiter" is high above Bootes in the west. Hercules
contains the beautiful globular star cluster M-13.
To the left and above of Hercules is
the constellation Lyra
"the Harp" near the meridian which contains the bright star Vega. Also in
the constellation Lyra is M-57 "The
the remnants of an exploding star is found in Lyra. Setting about
an hour after after sunset low on the
western horizon is Virgo "The Maiden"
where due to so many distant galaxies are located is known as The
Realm of Galaxies"
Virgo contains the bright star Spica. To the right of Spica (about
6 degrees) is Jupiter the
largest planet in our solar system. Looking
towards the center of our galaxy "the Milky Way in
the south to southeast are the constellations Scorpius "the
Scorpion" with its red super giant star Antares and to the
left of Scorpius is Sagittarius "the Archer" where Pluto
is located. Rising
in the east are the constellations Andromeda 'the Princess of
Ethiopia containing M-31
(the Andromeda Spiral) galaxy and Pegasus "the Winged
in the east is the
constellation Perseus "the Rescuer of Andromeda" These are just a few of the many constellations visible this
September 9, 2017, 2017 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