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Report for 2002-02-22 Welcome to the Utah Skies Report.
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| We came through the previous weekend and the start of the week with a string of beautiful nights. We've since been hit with clouds and snow and generally stormy weather. Oh, well.. it is winter ;) Anyway... |
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Aurora Watch: We are officially in an aurora watch
for the next couple of nights. Northern observers under clear skies should
keep an eye on the northern horizon for auroral activity...
Well.. it seemed like solar activity was thinking of subsiding... Perish the thought! Late Sunday night (2/17), a huge solar filament collapsed near the Sun's south pole. This caused an HUGE CME to be hurled into space. Checkout this amazing SOHO extreme ultraviolet image of the a huge magnetic loop of superheated solar material. Additionally, on Wednesday(2/20), sunspot 9825 hurled no less than three CME's into space. While none of these were squarely earth-directed, there are indications that they might deliver glancing blows to the Earth's magnetosphere when they pass on Friday. Let's hope so.
Additionally, the Earth was in the midst of a series of solar wind
gusts for most of last weekend.
Checkout www.Spaceweather.com for up to the minute information on solar activity.
Hey.. wanna checkout some neat images
from the last series of auroral activity?
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| The International Space Station (ISS)
will make several passes over the northern Utah this weekend. The ISS
is one of the brightest objects in the sky and can easily be spotted
without any optical aids.
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On February 1st, a new visitor to our
solar system was spotted low on the western horizon.
Discovered independently by Kaoru Ikeya of Shizuoka prefecture, Japan, Daqing Zhang in Henan province,
China, Comet
Ikeya-Zhang is currently cruising north through the constellation Cetus.
Astronomers believe that the comet (currently around mag8.5) will brighten
significantly in coming months... possibly even to naked eye levels. You
can be sure that we'll be following this one closely as it's peak of
brightness is expected to be towards April... Just in time for the start
of the 2002 Utah Skies Star Party Season.
If you want to get an early jump on viewing Comet Ikeya-Zhang, checkout this ephemeris page. |
The moon reached first quarter on Wednesday.
It is again growing larger and staying up later each night. Don't fight it. Add the moon
to your list of observing targets. It is, after all, the closest celestial object to
be viewed... offering up far more detail than any other celestial object. In
fact, it looks impressive in virtually any telescope. So... You might as well get to know our closest neighbor.
The accompanying image of the Ray Craters Tycho and Copernicus was taken by Steve Mandel and the Hidden Valley Observatory. Take note of the incredible amount of detail captured in the image. You can see stuff just like this with a modest telescope. So... what are you waiting for???? |
In this section, we visit the planets in the order in
which they are currently rising. We do our best to track down the finest images
available.
for 2002. As
an added feature, you may also click on any of the planetary images to view a
planetary reference page filled with important facts about the planet.
Mars is rising in the southeast around 9:20 am.
The Earth continues to pull away from Mars in it's orbit.
In fact, the distance between the two planets has grown from about 40
million miles this summer to over 175 million miles. This has caused Mars'
apparent diameter to shrink. It is currently down to a measly 5"..
a fraction of it's peak of 21" in June. It has also dimmed significantly as well - currently shining at
a wimpy magnitude 1.23 down from -2.4 in June.
Mars will return for an even better pass in 2003. In the mean time, we can live vicariously through the works of the Hubble Space Telescope which takes the most amazing astro-images ever seen. If you haven't checked out the Hubble Heritage site, I'd highly recommend it. It's loaded with many awesome planetary and deep sky image that'll blow your mind. Checkout how much dust is in the air in this image. This is a "planet wide" dust storm. Whole continents all but disappeared. Let's hope for clearer Martian skies on the next pass. |
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Saturn joins us now about 11:35 pm. Look for Saturn almost overhead as it gets dark. Saturn has currently spanning an an impressive 19" -- this is just shy of it's peak size and is currently shining at magnitude 0.04 -- which is also down a bit from its brightest. Don't waste any time... NOW is a great time to view Saturn. It will stick around through the remainder of the winter and into the spring, but.. your views will be best RIGHT NOW.
We replaced the previous, absolutely amazing image taken by the adaptive optics enabled European Southern Observatory with this even more spectacular Hubble Space Telescope image. Pretty cool, huh? Look at all the detail captured in the image. Look at how many splits in the ring system have been captured. What a beautiful image! Saturn and the moon have been playing a continual game of hide and seek. That's right, Saturn was involved in yet another lunar occultation. This makes the 10th time in less than a year! Saturn will hide behind the moon four more times before May. These events are interesting for more than the chance nature of the event. As Saturn drifts out from behind the dark side of the moon, astronomers are given the opportunity to see some of Saturn's hidden rings. That's right... hidden rings. There are some very extremely faint rings which extend beyond the main rings. NASA spacecraft have photographed them. Occultations offer special opportunities for earthbound residents to observe them. Unfortunately, this event will be missed my residents of northern Utah, with Provo being just inside the grazing limit. |
Next, look for Jupiter rising around 1:15pm. It'll be rising along side a beautiful gibbous moon. That ought to make an interesting pairing in the sky. Jupiter is the king of the Planets. It is more massive than all the other planets combined. In fact, Jupiter is over 300 times more massive than the Earth. Not surprisingly, Jupiter also has the largest moon in the solar system, Ganymede. Jupiter is currently shining at mag -2.51 and spans a whopping 44". This is just off from it's peak of 47" earlier this winter...
Jupiter is afterall the second most reflective (a
quality know as albedo) planet in the
solar system. Only Venus reflects more of the sun's light. Add this fact
with Jupiter's immense size, and it's no wonder that Jupiter shines so
brightly.
On Friday night(2/22) we've got a special treat for you. Jupiter will and the Moon will be separated by less than 1/2° (one moon width). To view this, simply look high and towards the southeast, shortly after sunset. These two objects are the brightest in the night sky, so.. you should have no problem finding them. Checkout this beautiful image by Astrophotographer Peter J. Garbett from Sharnbrook, England. Wow! This image clearly shows the interaction between Jupiter's Great Red Spot and another huge store, a large white oval. The two storm systems have been interacting for the last few weeks and will continue to do so for several more. Also visible in the image just below the GRS is the shadow of Jupiter's moon Callisto and along the right edge of the image is one of Jupiter's other moons, Ganymede. This is a very cool shot! If you're planning on viewing Jupiter's Great Red Spot, you'll want to checkout this Sky and Telescope article which contains a list of Great Red Spot Transit Times. Many of the features visible in this image are within the reach of modest amateur telescopes. Depending on the size of the telescope and the quality of your skies, you might even do better! In fact, on an amazingly steady night last fall, I did. I'll remind you again. You have to check out the tools section of the Utah Skies website for a cool java applet which depicts the relative position of the four major Jovian moons and their shadows. It's called JavaJup. I regularly refer to JavaJup to help plan my viewing sessions. |
| The Hubble Space Telescope has distinguished itself as a premier source of astronomical images. Amazing HST images have graced the covers of major magazines and newspapers worldwide. In recognition of the amazing advances in astronomy and physics which have come from Hubble discoveries, we'd like to devote a section of this report to some of these incredible images, and share some of them with you. Our latest comes directly from the Hubble Heritage Team. |
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The focus of our efforts this week will be the deep sky objects of Lynx. The Lynx can be found (with good eyesight) due east of the constellation Auriga which we visited a few weeks back and west/southwest of Ursa Major (the big dipper) which we'll visit again in the next few weeks. Don't look for any bright stars to guide you.. there aren't any. A lynx is a sly, secretive creature... and so is this weeks constellation.
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If you are able to find all of these objects, you may be one of the
few, the proud, the Deep Sky Obsessed.
E-mail your findings to DeepSkyObservations@UtahSkies.org.
What follows are a few excepts from the draft of the Summit County Development Plan. As you'll see, considerable attention is being paid to dealing with this issue.
Establish lighting regulations for the amount, intensity, type, and location of all outdoor artificial illuminating devices to ensure that all such lighting is minimum, protective of the night sky, and in harmony with the resort and mountain values, while appropriately addressing safety concerns.
Architecture and other design elements shall:
Promote an aesthetic character that is fitting to the mountain environment by using a palette of building and landscape materials and forms, lighting,
signing, and other streetscape features that are generally compatible with the surrounding mountain environment.
Exterior lighting shall be minimal and must be directed down and shielded in accordance with County standards.
Because of the potential amount of commercial development in this area, the cumulative impact of lighting is a community concern. Development
shall use all reasonable measures to minimize lighting impacts, including full cut-off devices, timers, and other security devices that minimize the
need for exterior lighting.
Exterior lighting shall be minimal on hillsides.
These are all great. If we follow these simple guidelines, we'll make huge strides towards protecting the beautiful skies overhead.
Checkout the Light Pollution Section of the Utah Skies website at www.UtahSkies.org for more information on the harmful effects of improper lighting or for ideas on how to improve your lighting. Please contact us with any questions you may have or to Volunteer to help us in the fight to curb light pollution.
Next Weeks Report
Next week, we'll continue our journey through the cosmos
and focus on the constellation Canis Minor.
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Stay up to date on astronomical happenings by regularly checking the Utah Skies website at http://www.UtahSkies.org |