Planetary Treats and Celestial Delights During Scorpio
For the Northern Hemisphere
October 23 - November 21, 2009
All
times are local unless
otherwise specified.
Look
Up!
Planetary
Treats
Jupiter
Has Rings?!
Dust
Devils Draw on Martian Dunes!
Saturn’s
Monstrous Ring!
Venus
~ The Beauty and the Beast
Where's the
Messenger?
Celestial
Delights
A Spooky Nebula
Pumpkin Moon? Hunters
Moon? All Souls Day!
Watery
Constellations ~ A Celestial Sea
A Square Replaces a
Triangle
Plus ...
Sky Lights
Printable Date Table
Moon
Dances 10/17-11/16
Moon
Dances 11/16-12/16
The
Night Sky ~ Home Page
Scorpio
Navigation Page
Planetary
Treats
Jupiter
Has Rings?!
Image
Above: A
schematic diagram of Jupiter's inner satellites and rings. [more]
The
following is culled from NASA's article Dark
Rings. The full
story is revealing!
In 1974 NASA's
Pioneer 11 spacecraft flew right through Jupiter's rings without
anyone knowing the rings were there. Five years passed before
the cameras onboard Voyager 1 caught first sight of them March
5, 1979. The spacecraft from inside the planet's shadow
was able to view the faintly sunlit rings--but just barely. Then
on November 5, 2002, for
the first time since Pioneer 11’s plunge, the Galileo spacecraft
flew through the rings again. And this time scientists were ready.
They
learned Jupiter's rings are made of fine dust grains similar
to those in cigarette smoke. They are dark, barely reflecting
5% of the sunlight that hits them and they are spread so thin
that the rings are almost transparent, making them hard to study.
The dust comes from the small rocky moons orbiting Jupiter. These
moons are constantly pelted by meteoroids, which burrow into
the ground and explode. Jupiter's rings are the debris from those
impacts.
Jupiter
also has a humongous outer
ring about 700,000 miles in diameter and it orbits Jupiter
backwards! No one knows for sure, but this ring might be made
of captured interplanetary and interstellar dust. In April
1998 Dr. Joshua Colwell said when speaking of this
ring, "I suspect we may wind up seeing something similar
at Saturn."
Hmmm … In
October 2009 such a ring was detected around Saturn! See Saturn’s
Monstrous Ring! below.
Jupiter pierces
the twilight with it brilliance. This King
of the Planets rules the night sky and is easily seen along the
southern horizon, high in the south as evening begins. The planet
sets in the southwest at 1:30am daylight time in the beginning of
Scorpio and 10:45pm standard time at its end. The King is setting
earlier as the weeks unfold. Enjoy his illuminating reign while it
lasts!
Jupiter
is located in the dim constellation Capricornus and at magnitude -2.4
far outshines any stars in its vicinity. Telescopic Neptune lies
to the left of Jupiter at the northeast corner of Capricornus above
its Delta star, Deneb Algedi. Helpful
Image Jupiter lies between Gamma and Theta during November. Did
you notice the open smiling shape of Capricornus? Look
again! Jupiter in its forward, easterly motion is moving toward
Neptune for a December solstice conjunction.
Mark
Your Calendar!
The
Moon in the vicinity of Jupiter is truly a planetary treat. Check
it out Friday-Wednesday, October 23-28.
The First
Quarter Moon October 25 lies to
the right of Jupiter. 10/25
Map/Text The following night October 26 the
Moon lies closer to the planet. 10/26
Map Jupiter, moving away from the Earth, is dimming and will
appear smaller, as the months unfold. Click Moon
Dances for an additional map and meditative reflections.
Telescopic
Jupiter
A
small telescope shows Jupiter's bright equatorial zone and its two
dark equatorial belts above and below it. The planet's tumultuous
clouds provide colorful and energetic performances for small scope
observers.
Earth's
atmosphere tends to be turbulent right after sunset, which limits
the detail you can see through a telescope. And Jupiter's lower
altitude in late evening also adversely affects the view. Still,
you should find many moments when our atmosphere settles down and
the jovian disk comes into sharp focus. Astronomy
Magazine 11/09
In 2009
the Earth, orbitally positioned above Jupiter's equator, is moving
through the plane of Jupiter's satellites, allowing the planet's
moons to line up in their special 6-year geometry.
Between
April and December of 2009, observers around the world can see
Jupiter's moons passing one in front of another as they circle
the giant planet. As part of the International Year of Astronomy,
professional astronomers are organizing a worldwide observing campaign
to record as many of these events as possible. Click
here for details. spaceweather.com
5/10/09
Jupiter's
2009 Satellite Phenomena ~ Complete List
Jupiter’s
Moons
Sky & Telescope’s JavaScript utility helps
locate Jupiter’s four brightest satellites anytime
between January 1900–December 2100.
It also lists the satellite phenomena for the chosen day.
BTW: The
four largest and brightest moons of Jupiter can be seen in a dark
country sky with binoculars. They were first discovered by Galileo
Galilei in 1610. Click Galilean
Moons to see what they look like and to learn more.
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Dust
Devils Draw on Martian Dunes!
Image
The
HiRISE camera aboard the Mars
Reconnaissance Orbiter took the above high-resolution picture
of the surface of Mars. This
image shows sand dunes in a crater bed located at the planet’s
mid-north latitude. The swirling tattoo-like markings were drawn
by Martian dust
devils, whirlwinds dancing across the desert dunes.
If
the ground gets heated, rising air can punch through cooler air
above it. This starts up a convection cell, with warm air rising
and cool air sinking. If there is a horizontal wind the cell
can start spinning, creating a vortex … When a dust devil
moves over the Martian surface, it can pick up the very light
[red surface] dust particles, but not the heavier [darker] sand
grains [made of basalt]. So those blue-grey swirls are tracks
where the dust devil has vacuumed up the dust, revealing the
darker sand underneath. If you look carefully in the tracks,
you can see the sand dune ripples are undisturbed. Only the dust
is gone. Discover
Blogs / Bad Astronomy
In
general dust devils last only a few minutes. People in dry desert
areas of planet Earth have seen these mini-whirlwinds and have
found them to be wonderfully mesmerizing. However, those on Mars
can be quite devilish towering miles high
and whipping red-brown sand and dust around at 70 miles per hour! Size
Comparison Even more devilish, this moving sand and dust may
become electrically charged creating miniature crackling and flashing
lightning bolts!!! Sometimes Martian dust devils are “heaven
sent” unexpectedly cleaning the solar panels of the Mars
Exploration Rovers!
Take
a closer look at the image. There’s a sloping dune peak cutting
across the image from top left to lower right. The linear dark
streaks found here are probably caused by sand sliding down the
dune face. BTW: The shape of
the dunes change depending on the wind patterns within in the crater.
Mars
is a world. It’s not just a dot in the sky, it’s
not just a set in a movie, it’s not just pictures from
a space probe. It’s a planet, a vast complex system of
interacting environments which produces climates, landscapes,
vistas, weather. And man oh man, does it produce beauty, awe,
and wonder. Wow. Discover
Blogs / Bad Astronomy
Dust
Devil at Soccer Game
More
Martian Dunes
Mars
Reconnaissance Orbiter: Home ~ HiRISE:
Home
Mars is
approaching Earth and is noticeably growing in size and brightness.
Check it out. The planet rises in the east at 12:15am daylight time
in the beginning of Scorpio and around 10:15pm standard time at its
end. By dawn Mars can be seen overhead. The Gemini Twins Castor and
Pollux, lie west of (above) Mars. Mid-Nov.
1am Map Shining at magnitude 0.2
Mars is brighter than the Twin stars.
Mark
Your Calendar!
The Red
Planet lies in the dim constellation of Cancer. Mars enters the Beehive
star cluster at the heart of Cancer October
31and exits it November 3.
Get out those binoculars to see the bees! 2am
Star Map ~ 10/28-31
Beehive-Mars Map ~ 11/1-4
Beehive-Mars Map
November
8 the waning
Gibbous Moon lies in a diagonal alignment with the Gemini Twin
stars west of (above) Mars; Saturn and Venus lie southeast of (below)
Mars. 11/8
5:30am Sky Chart November 9 the
Last Quarter Moon lies near the planet. 11/9
2am Map ~ 11/9
5:30am Sky Chart. Click Moon
Dances for an additional map and meditative reflections.
Telescoping
Mars!
With an
8-inch scope or larger expect to see more and more details of Mars,
especially by the end of November. Observe Mars the same time every
night and it's distinctive features will appear to move backwards.
This is due to the extra 37 minutes it takes Mars to rotate compared
to Earth. If you want to observe the same feature in the same location
the following evening, look about a half hour later. Mars is in its
waxing gibbous phase now. Mars
Oct. 20, 2009 ~ Four
Faces of Mars
The
most prominent feature will be the white north polar cap. Mars
reached its spring equinox October 26. As the Sun climbs higher
in the northern hemisphere sky, the polar cap begins to shrink
noticeably. Earthbound observers will have a nice view because
this cap now tilts toward us. Astronomy
Magazine 11/09
The combined orbital
motions of Mars and the Earth are bringing the two planets
closer together and views of our Red Planet are getting better
and better. Look Up! Mars reaches opposition and
is at its best in January 2010.
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Saturn’s
Monstrous Ring!
Image
How
big is it? It
would take a billion Earths to fill the space occupied by this
monstrous ring. The bulk of its material starts about 3.7 million
miles (6 mil km) away from the planet and extends outward roughly
another 7.4 million miles (12 mil km).
Observations
from the Spitzer
Space Telescope have revealed the largest-known planetary
ring in the Solar System. The newly discovered ring
is associated with Saturn’s distant moon Phoebe, which
orbits the giant planet at a radius of about 13 million kilometers,
or about 200 times the radius of Saturn. Until now, the largest-known
planetary rings were Jupiter’s gossamer rings and Saturn’s
E ring - sheets of dust that extend to about 5-10 times the radius
of their respective planets. Reporting the discovery in this
week’s Nature [Oct.
22, 2009], UVa’s Anne
Verbiscer, Mike
Skrutskie and their colleague Douglas Hamilton at the University
of Maryland, College Park, also present numerical simulations
that show how repeated impacts on Phoebe can keep the ring supplied
with dust.
This
faint but enormous ring may also explain a longstanding mystery:
the two-tone coloration of another Saturnian moon, Iapetus. This
moon’s leading hemisphere is significantly darker than
its trailing hemisphere, leading to suggestions that the front
face might be coated with dust spiralling in from Saturn’s
darker outer moons, including Phoebe. Verbiscer and colleagues
calculate that, over the history of the Solar System, material
from the ring could have supplied Iapetus’s front face
with a blanket of dark dust meters thick. University
of Virginia
Iapetus:
the mysterious black-and-white moon
Astronomy.com video (3:16) based on the Cassini flyby
Hmmm … It
is interesting and curious to note that Jupiter's faint rings are
made of the dust of its rocky moons. In addition, based on computer
simulations and data from NASA's Galileo spacecraft, Jupiter also
has a humongous outer ring! In 1998 it was predicted that we'd
probably see a similar ring at Saturn! Review Jupiter Has Rings?! above.
NASA
Discovers Giant Ring Around Saturn
Associated Press' YouTube Video (1:12)
A favorite by viewers
Spitzer
Sees Giant Ring Around Saturn
Anne Verbiscer talks with Universe Today.
Great background information ... Easy read
Saturn rises
in the east around 4:45am daylight time in the beginning of Scorpio
and by 2:15am standard time at its end. It is ascending
further above morning Venus and is nearly 1/2 way to overhead
by sunrise.
Saturn
lies in the constellation Virgo the Virgin above (west of) Spica,
Virgo's brightest star. At magnitude 1.1
the planet and star are equally bright. If you have the chance to
observe both celestial bodies in a dark sky, compare the color of
yellowish Saturn and bluish Spica.
Mark
Your Calendar!
November
12,
Thursday morning, look east 3:00am - early dawn; a thin waning
Moon lies to the right of Saturn 11/12
5:45am Map and with an unobstructed view one can see Venus
hugging the horizon below. 11/12
5:45am Sky Chart Click Moon
Dances for an additional map and meditative reflections.
Telescopic
Saturn
Saturn's
rings were closing toward
their August 10, 2009 edge-on
black view since
2003. We can now see them opening again, revealing for
the first time since 1995 their northern face. Saturn's ring
tilt is 3.1º November 1,
4.3º November 31 and 5º by the year's
end. Ring
Tilt at 30 Oppositions of Saturn Any
telescope will give a splendid view of this Lord of the Rings!
Saturn's
brightest and largest moon, Titan, can also be seen through any telescope.
Look for Titan near Saturn November 7, 15, and 23.
You are sure to see Saturn's 4 other brightest moons: Dione, Rhea,
Tethys, Enceladus with a 6-inch scope.
Seeking
Saturn’s Moons
Sky & Telescope’s JavaScript utility helps
locate Saturn’s 5 brightest satellites anytime
between January 1900-December 2100.
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Venus ~The Beauty and the Beast
Image
This
image of Venus was photographed in natural color by the Mariner
10 spacecraft during its February 5, 1974 flyby. Note: Venus
is completely enshrouded in layers of bright white sulfuric clouds.
These clouds reflect over 75% of the sunlight striking it. This
in addition to Venus' close proximity to Earth make it our brightest
planet.
The
Beauty
Venus
is gorgeous in the evening or morning sky. She blazes brighter
than all the stars and planets. Only the Sun and Moon are brighter.
Paired with the Moon she takes our breath away. Her brilliance
can be seen in the day sky. At night her dazzling glow is cast
upon water and creates shadows on Earth.
Venus
is named after the Roman goddess of love and is esoterically known
to bring the Love
Principle to Earth. This planet harmonizes humanity with the
gifts of understanding, love-wisdom,
unity, creativity and beauty. The emanations of Venus help one
begin to understand the causes and conditions of harmony and conflict.
They thereby lovingly and wisely promote diplomacy and establish right
human relations between all people and between nations. The qualities
of Venus, when incorporated into the life give birth to the
sons and daughters of God, the self-consecrated human beings who
manifest their Divinity on Earth.
The
Beast
Some
consider Venus the Earth's evil twin! Alike in size and density
these "twin" planets also have very similar orbits close
to the Sun. However, Venus the beast has a very hostile environment.
The atmosphere of Venus is 96.5% carbon dioxide with a runaway
greenhouse effect that raises temperatures hot enough to melt lead!
The air pressure, 90 times that of Earth, is crushing; and her
thick clouds rain down sulfuric acid!!! The last spacecraft to
land there, Russia's Venera 14 in 1982, survived only 57 minutes.
Venus, beyond any doubt, is a hellish place to be.
Venus
Express ~ ESA’s Orbiter
Successful Launch ~ November 9, 2005
Orbital Arrival ~ April 11, 2006
Mission Extension ~ To Early May 2009
Currently Funded through Dec. 31, 2012
Objectives ~ Images ~ Status
Reports
Venus at magnitude -3.9
is dazzling in the predawn sky. The planet can be seen rising in
the east around 5:45am daylight time in the beginning of Scorpio
and by 6:00am standard time at its end.
Mark
Your Calendar!
November
3, Tuesday morning, Venus pairs up with Spica below Saturn
and shines 100x brighter than the star or Saturn. 11/3
6:30am Map Afterwards Venus descends below Spica.
November
15,
Sunday morning, Venus and a slim Crescent Moon pair up low on the
eastern horizon; look after 5:45am. Map Click Moon
Dances for an additional map and meditative reflections.
Venus
is sinking into the Sun's embrace. By the end of November the planet
will be difficult to see in the bright twilight.
Mercury the
messenger of the gods is hidden in the solar glare for most of Scorpio.
It is in superior
conjunction November 5. Begin
looking for the planet to reappear very low on the southwestern horizon,
just after sunset, in mid-November. 11/15
4:45pm Sunset Star Chart
The
Planets
Is
it a planet? ... What planet? When you look up at the night sky, how
do you know you are looking at a planet? Learn what a plutoid is. Click
here.
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Celestial
Delights
APOD:
A Spooky Nebula - October 31, 2006
Image
The
dark nebula SH2-136 appears to be celebrating Halloween all of
the time. The complex process of star
formation creates dust clouds
of many shapes and sizes --
it is human
perception that might identify a ghoulish creature, on the
right of the above image, chasing humans. Full
Description ... Current
Astronomy Picture of the Day
Halloween
and the Pleiades
The Seven Sisters reign over the hallowed Days of the Dead..
Pumpkin
Moon? Hunters Moon? All Soul's Day!
Full Moon Monday, November 2
A Random Act of Kindness ...
Image
Description
Full
Moon Exact: Monday, 11/2, at 11:14am PST (19:14 UT)
Pumpkin
Moon? Hunters Moon?
You just
may see a pumpkin colored Full Moon rising in the east or setting
in the west. Tis the season for a heavenly jack-o-lantern
to be smiling down upon you!
Traditionally
the Full Moon following the Harvest Moon is called the Hunters
Full Moon. The origin of the name actually relates to the harvest.
...
1 month after the harvest hunters used to ride out under the light
of this full moon to hunt the small animals that came out to forage
what was left of the harvest. Star
Gazer
Since
Im not a hunter and love pumpkins and animals, I prefer calling
this Moon the Pumpkin Moon. Hmmm ... Let's
surprise our little animal friends by doing something nice for them
during the Full Moon! A random act of kindness lifts all of our spirits.
In 2009
this Full Moon falls on All
Souls Day. Learn about the Days of the Dead, All-Hallowsmas,
in Halloween
and the Pleiades. Take some time to celebrate the life of the
spirit in and out of form.
Click Moon
Dances for a Full Moon star map and meditative reflections.
Strengthen
the light grid of planet Earth by participating in the Scorpio Divine
Identification Global Meditation.
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The
Watery Constellations ~ A Celestial Sea
*Printable
Image*
The
above map shows the Celestial Sea constellations as seen from mid-northern
latitudes around 10:00pm Daylight Time in October and 9:00pm Standard
time in November. Eridanus is mostly below the horizon. The constellations
move up in the sky during the night, so most of Eridanus becomes
visible low on the horizon by midnight.
Celestial
Sea sailing
requires both skill and experience, also the darker the sky the
better for navigating among these faint constellations.
During
the mid-to-late evening hours ... there are very few bright stars
in the region that is spread across the southern skies.
This
whole area can be called the "Watery" part of the sky. It isn't
really watery, of course. It is watery in the sense that it is
vague and dim, like a dark pool. These watery constellations — Capricornus,
the Sea-Goat; Aquarius, the Water Bearer; Pisces, the Fishes; Piscis
Austrinus, the Southern Fish; Cetus, the Whale [aka the Monster];
and finally Eridanus, the River -- may have commemorated a great
flood of long ago. Full Article: Watery
Part of the Sky by Joe Rao
In 2009
telescopic Uranus is located in Pisces. Telescopic Neptune and brilliant
Jupiter are in Capricornus. Stay tuned for a Moon Dance link with
a star map and meditative reflections.
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Autumn's
Square of Pegasus Replaces Summer's Great Triangle
*Printable
Image*
The
stars overhead change as the seasons change on Earth. The stars
highest above the horizon in mid-evening are considered to be the stars
of the season. In the beginning
of November go outside 8:00pm-9:00pm. The three brilliant
stars of the Summer
Triangle are beginning to slowly descend toward the horizon.
Almost overhead are the four much dimmer stars, which make up the Great
Square of Pegasus the winged horse, the Autumn Square.
The
Autumn Dipper? A Flying Horse? Time Traveling?
Navigate with Pegasus and Cassiopeia. Locate Andromeda.
...
suddenly we are drawn into new realms and
we become the night sky travelers!
Sky
Lights ~ Scorpio
Printable
Sky Lights
Printable
Date Table
Lunar
Cycle 10/17/09-11/16/09
(Can be used through 11/21)
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I'd
like to know your thoughts about The Night Sky and
if you'd like reminders to Look Up! ...
send me an email.
May your Night Sky traveling always be filled
with Celestial Delights and Treats!
Susan Sun
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