For
more information, please visit http://www. "Each one tells a story of
stellar winds from young stars that impact the environment and the material
ejected from other stars. It also gives the strongest backing yet to
the notion stars have a weight limit.5 million years old. "Standard theories predict 20 to 30
stars with masses between 130 and 1,000 solar masses ," Figer explained.

338 tah

com. A
monthly membership of $7. The
Advanced Camera mosaic covers approximately the apparent angular size of the
full moon.

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com Audience Takes Command From Their Home Computers
of High Powered Telescopes Situated in the Canary Islands

NEW YORK, Slooh (http: //www.
Robberto presented the findings today at the 207th meeting of the American
Astronomical Society in Washington.

sketching peculiar

Teide, at the Institute of Astrophysics in the
Canary Islands, one of the world's best locations for astronomical viewing.S.95 per year for unlimited group
missions, plus 15 minutes of solo mission time.
Among the stars Hubble spotted for the first time in visible light in
Orion were young brown dwarfs and a small population of possible binary brown
dwarfs (two brown dwarfs orbiting each other).5 billion years ago in a cloud like
this one.

NASA's Hubble Weighs in on the Heaviest Stars in the Galaxy

A star's weight ranges from less than one-tenth to more than 100 times the
mass of our sun.

nebulae brightness

com is pleased to introduce this new product to our audience ,"
said Mark Irwin, Vice President of Operations at Discovery."
This extensive study took 105 Hubble orbits to complete. His next step is to pinpoint more clusters to
test his weight limit.

gov

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"
Since its limited introduction, Slooh has already attracted thousands of
loyal paying customers, and is a leader in the burgeoning market of pay
content sites on the internet.

The Institute is operated for
NASA by the Association of Universities for Research in Astronomy, Inc. Knowing how large
a star can form may offer important clues to how the universe makes them .

hopping observers

Slooh's patent pending
technology collects the light of distant celestial objects and develops the
images in real time as members look on.
Additional solo time can be purchased in 15-minute intervals for $19. Slooh is available
online for a 7-night free trial and requires only a 56K modem and Flash 7. Astronomers have a clear view into this crowded stellar
maternity ward, because massive stars in the center of the nebula have blown
out most of the dust and gas in which they formed, carving out a cavity in the
dark cloud of gas and dust.

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Slooh Joins Forces With Discovery.com To Introduce Online Exploration of Space

com), the first
online service to offer live viewing of outer space , has joined forces with
Discovery.com.

Figer's finding is consistent with statistical studies of smaller-mass
star clusters in our galaxy and with observations of a massive star cluster
known as R136 in our galactic neighbor, the Large Magellanic Cloud. If they had formed, we would have seen them," he added. Several telescopes, including NASA's Spitzer Space
Telescope, have been searching for new star clusters in the Milky Way.

sketching clusters

Slooh
allows members to access and control its high-powered telescopes, which are
situated at 7900 feet on Mt. Deluxe membership is $99.slooh. Some
are merely one-hundredth the brightness of previously viewed Orion stars.
The Hubble Space Telescope is a project of international cooperation
between NASA and the European Space Agency. Consequently, theories have predicted stars can be anywhere between 100
to 1,000 times more massive than the sun.

observing observers

It resides 25,000 light-years away from Earth in our
galaxy's hub, a hotbed of massive star formation.
Najarro produced detailed models to confirm the masses, chemical abundances
and ages of the Arches cluster stars.

planetaries observing

95 per month is also available. We can then sort the
stars by mass and age and look for trends.
"In this bowl of stars we see the entire formation history of Orion
printed into the features of the nebula: arcs, blobs, pillars, and rings of
dust that resemble cigar smoke," Robberto said.
Figer cautions the upper limit does not rule out the existence of stars
larger than 150 solar masses.
The finding is published in the March 10 issue of Nature .

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"
"Our partnership with Discovery.
Figer used Hubble's Near Infrared Camera and Multi -Object Spectrometer to
study hundreds of stars ranging from six to 130 solar masses.

This category lists sites that contribute information on deep sky observing.

planetaries supernovae

"Discovery. This turbulent star formation region
is one of astronomy's most dramatic and photogenic celestial objects. It varies from jets fired
by stars still embedded in their dust and gas cocoons to disks of material
encircling young stars that could be the building blocks of future solar
systems." These cool objects are too small to be ordinary stars, because
they cannot sustain nuclear fusion in their cores the way the sun does. All imaging
instruments aboard the telescope were used simultaneously to study Orion. Using NASA's
Hubble Space Telescope, they made the first direct measurement within our
Milky Way Galaxy, and concluded stars cannot get any larger than about 150
times the mass of our sun.

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slooh .

About Slooh
Bringing the rhythms and wonder of outer space to people of all ages ,
Slooh's mighty telescopes are the centerpiece of LIVE interactive 'missions'
to hundreds of known wonders of the universe.

piggyback nebulae

Featured speakers have included David Levy, co-discoverer of
Comet Shoemaker -Levy and Bob Berman of Astronomy Magazine.
"Orion is a bustling cauldron of activity. The finding takes astronomers closer to understanding the
complex star formation process.

peculiar supernovae

95. "But
we found none.

lxd55 338

95
per year for unlimited group missions, plus 90 minutes of solo mission time.
Comparing the characteristics of newborn stars and brown dwarfs in their natal
environment provides unique information about how they form. This appears to be a typical star-forming
environment. We looked at one
of the most massive clusters in our galaxy and found there is a sharp cutoff
to how large a star can form," he added.

clusters peculiar

Discovery.com is an important milestone in our quest
to popularize astronomy," said Michael Paolucci, President and Founder of
Slooh. This new large-scale Hubble
image of the region reveals a treasure-house of beauty and astonishing detail
for comprehensive scientific study," said Jennifer Wiseman, NASA's Hubble
program scientist. Brown dwarfs are so-called
"failed stars.
"The wealth of information in this Hubble survey, including seeing stars
of all sizes in one dense place, provides an extraordinary opportunity to
study star formation," said observation leader Massimo Robberto of the Space
Telescope Science Institute, Baltimore.

astrophotos ngc

Slooh is currently
recruiting amateur comet hunters to join its stable of Slooh Discoverers, who
will use the observatories to make true discoveries on behalf of the
membership."
Orion is a perfect laboratory to study how stars are born, because it is
1,500 light-years away, a relatively short distance within our 100,000 light-
year wide galaxy.
"This is an incredible cluster that contains a rich collection of some of
the most massive stars in the galaxy, yet it appears to be missing stars more
massive than 150 times the mass of our sun," said astronomer Donald Figer of
the Space Telescope Science Institute, Baltimore. Although astronomers know stars come in a variety of masses,
they don't know if the bodies have a weight limit at birth.
Hubble's infrared camera is well suited to analyze the cluster, because it
penetrates the dusty core of our galaxy.

lxd55 338

com to introduce Slooh's live space show to Discovery. Slooh is configured to optimize the
view of hundreds of astronomical objects such as the Orion Nebula, the
Whirlpool Galaxy and the Pleiades Cluster-objects that are difficult to see in
all their grandeur with a typical backyard telescope. "Slooh's
technology has made astronomy accessible and interesting for everyone. Slooh's missions are driven by its patent
pending LightMachine(TM) technology, which accumulates the light of distant
celestial objects and displays them in real time for the viewing audience. WASHINGTON, Astronomers have taken an important
step toward establishing an upper limit to the masses of stars. The Arches cluster is a youngster about 2 to
2. It produces sharp images, allowing
the telescope to see individual stars in a tightly packed cluster.

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Slooh's telescopes are stationed five hours ahead of Eastern Standard
Time , which enables members in North America to see the night sky during
daylight hours in the U.
The crisp image is a tapestry of star formation. "Our goal is to calculate the masses
and ages for these young stars, so that we can map their history and get a
general scenario of the star formation in that region.

averted messier

Slooh has added many new features since its
launch, including Slooh Radio, a nightly live audio feed of leading astronomy
personalities who describe Slooh missions in progress as they take questions
from members.com . Our sun may have been born 4. The Space Telescope Science
Institute conducts Hubble science operations. Astronomers don't know enough
about the details of the star -formation process to estimate a star's upper
mass. In this region huge clouds
of gas collide to form behemoth stars.org/news/2005/05

For information about NASA and agency programs on the Internet, visit:

http://www.

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In development since 2001, Slooh has been live and online every night since
April 24th, 2004., starting at 2pm EST. "It is a validation of Slooh's success thus far in making astronomy
easy and affordable for the general public.
Slooh's basic membership costs $49.
In a mosaic containing a billion pixels, Hubble's Advanced Camera for
Surveys uncovered thousands of stars never seen before in visible light.
Astronomers have been uncertain about how large a star can get before it
cannot hold itself together and blows apart. He also collaborated with Francisco
Najarro of the Instituto de Estructura de la Materia in Madrid, Spain.

supernovae discoverer

Slooh has stationed
high-powered telescopes in the Canary Islands, one of the world's best
locations for astronomical viewing.

NASA's Hubble Reveals Thousands of Orion Nebula Stars

WASHINGTON, In one of the most detailed
astronomical images ever produced, NASA's Hubble Space Telescope captured an
unprecedented look at the Orion Nebula.,
Washington.org/news/2006 /01

The astronomers used the Hubble to probe the Arches cluster, the densest
in our galaxy.nasa.

hopping herschel

For images and information about this
research on the Web, visit:

http://hubblesite. "Theories predict the more
massive the cluster, the more massive the stars within it. Although Figer
did not find any stars larger than 130 solar masses, he conservatively set the
upper limit at 150 solar masses.
Figer estimated the stars' masses by measuring the ages of the cluster and
the brightness of the individual stars. For imagery and
more information about the research on the Internet, visit:

http://hubblesite.

scratchings deepsky

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