July 9, 2016
p.m. to 11:00 p.m.
Rudy Park, York, PA. Observatory
will be an Astronomy Program in the Observatory July 9th 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
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.
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 July 9, 2016 Public Observing Night Sky
Sun sets at 8:37 p.m. and is located in the constellation Gemini
evening sky finds the Moon in the west southwest
in the constellation Virgo and is at phase 31.35% lit. The Moon sets at 11:52
pm. See: Moon
Map. See: How
to find degrees.
Mars and Saturn
and Saturn are visible in the south after sunset. Our telescopes
will show you the beautiful rings of Saturn and the surface
features of the planet Mars. The Amazonis region of Mars with
the Olympus Mons a shield volcano,
largest volcano in the solar system will be facing earth this night.
appears larger and brighter than at any time in the last 10½
years. Mars will be located in the constellation Libra in the
image shows Mars surface of the
visible at 10:00 pm July 9, 2016. Click on Mars to see Map of
below image shows the location of Mars two moons Phobos and Deimos
at 10:00 pm. Both moons are very faint at 12+ magnitude. high magnification, excellent
seeing conditions and closest approach of Mars, are essential for glimpsing the moons.
below location on where to find the Mars and Saturn in the
Look for the ruddy
glow of Mars
and pale yellow
Mars and Saturn
are 17°31'15" degrees from each other as seen above on the
evening of July 9th at 10:00 pm.
is located in the southwest this night located in the constellation Leo the
sets at 11:34 pm. 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. Jupiter the fifth planet from the Sun
is the largest planet in the Solar System. It has a mass one-thousandth that of the
shows the location of the planet Jupiter which is
only 07°34'45"" (degrees) to the right of the moon.
Observe four of Jupiter's
moons this night. See below image
of the planet Jupiter and moons as they will appear through a
small telescope at 10:00 pm. July 9th.
the ringed planet is located in the south in
the constellation Ophiuchus.
Saturn appears as a pale yellow glow compared to the color of the background
of stars. Image below shows the tilt of Saturn's rings this
Image below shows the location of some of Saturn's icy moons at 10:00 pm
observing night. Titan,
moon is 5,150 km diameter, it is the second largest moon in the Solar System.
Titans should be visible at magnitude is 9.6 this night.
8Flora at magnitude 9.9 is 04°09'28" degrees from Saturn Located in the constellation
Asteroid 7Iris at magnitude 10.1 is 09°59'45" degrees from Saturn
and Mars at 07°32'14"
in the east early evening are the
constellations Lyra with the famous ring nebulae M-
57, Ophiuchus, Libra and
in the constellation Hercules with the beautiful globular cluster
of stars containing hundreds of thousands of stars known as M13.
Summer Triangle consisting of the constellations Lyra with its
bright star Vega, Cygnus with its bright star Deneb and Aquila
with bright star Altair make up the triangle visible rising in the
in the southeast is Scorpius
and in the southwest the constellation Hydra. High in the sky is
Virgo, Coma Berenices, Cane Venatici and Bootes. Lower
in the western sky is the constellation Leo the Lion and below Leo
is the constellation Cancer and just above the horizon is the setting
constellation Gemini the Twins. In the
north is the Big Dipper to the left of the Little Dipper which
contains 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
July 9, 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