Public Observing June 11, 2016
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
Public Observing Night Sky
Sun sets at 8:36 p.m. and is located in the constellation Taurus
moon is in the southwest
in the constellation Leo the Lion and is at phase 47.21% lit. The planet Jupiter is
only 03°47'53" (degrees) to the right of the moon as seen in
below image. The moon sets at 12:50 am. See: How
to find degrees.
appears larger and brighter than at any time in the last 10½
years. Mars will be located in the constellation Libra in the
southeast. Above image shows Mars surface at 10:00 pm. on Public
Visible for Public Observing
Jupiter the fifth planet from the Sun
is the largest planet in the Solar System. It has a mass one-thousandth that of the
is located in the southwest at 9:30 pm this night located in the constellation Leo the
sets at 1:20 am. When you look at Jupiter your seeing the
planet as it appeared 36 minutes ago due to
the 467,790,000 million miles it takes light traveling at 186,000
miles per second to reach your eyes from Jupiter.
Observe four of Jupiter's moons. See below image
of the planet Jupiter and moons as they will appear through a
small telescope at 10:00 pm. June 11th.
image at 9:00 pm shows the shadow of Europa as it ends its transit
across the face of Jupiter.
19:56 UT, Europa begins transit of Jupiter.
22:30 UT, Europa's shadow begins to cross Jupiter.
22:44 UT, Europa ends transit of Jupiter.
the ringed planet is rising low in the southeast located in
the constellation Ophiuchus.
Image below shows the moons of Saturn at 9:30 pm public
in the east are the
constellations Lyra, Ophiuchus, Libra and Hercules. Low
in the southeast is Scorpius
and in the southwest the constellation Hydra. High in the sky is
Virgo, Coma Berenices, Cane Venatici and Bootes. Higher
in the western sky is the constellation Leo the Lion and below Leo
is the constellation Cancer and just above the horizon are setting
constellations Gemini the Twins and Auriga. In the
north is the Big Dipper above the Little Dipper with Polaris the north
star. See How to use the Big
Dipper to find Polaris the north star. See: Finding
These are just a few of the many constellations visible this
June 11, 2016 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