Group items tagged astronomy - Comets & Asteroids

Asteroid Impactor Reported over Indonesia - 1 views

neo.jpl.nasa.gov/...news165.html

astronomy fireball meteors

shared by Ernesto Guido on 27 Oct 09 - Cached

Ernesto Guido on 27 Oct 09

On October 8, 2009 about 03:00 Greenwich time, an atmospheric fireball blast was observed and recorded over an island region of Indonesia. The blast is thought to be due to the atmospheric entry of a small asteroid about 10 meters in diameter that, due to atmospheric pressure, detonated in the atmosphere with an energy of about 50 kilotons (the equivalent of 100,000 pounds of TNT explosives).

<div class="cArrow"> </div><div class="cContentInner">On October 8, 2009 about 03:00 Greenwich time, an atmospheric fireball blast was observed and recorded over an island region of Indonesia. The blast is thought to be due to the atmospheric entry of a small asteroid about 10 meters in diameter that, due to atmospheric pressure, detonated in the atmosphere with an energy of about 50 kilotons (the equivalent of 100,000 pounds of TNT explosives).</div>

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Cosmic Blast Rattles Indonesia - 1 views

www.skyandtelescope.com/...65960457.html

astronomy fireball airburst meteor

shared by Ernesto Guido on 27 Oct 09 - Cached

Ernesto Guido on 27 Oct 09

Back on October 8th, something big lit up the late-morning sky (at about 3:00 Universal Time) over the island nation of Indonesia.

<div class="cArrow"> </div><div class="cContentInner">Back on October 8th, something big lit up the late-morning sky (at about 3:00 Universal Time) over the island nation of Indonesia.</div>

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Arxiv - The Sizes of Kuiper Belt Objects - 0 views

arxiv.org/0911.0004

astronomy arxiv KBO kuiper belt

shared by Ernesto Guido on 03 Nov 09 - Cached

Ernesto Guido on 03 Nov 09

One of the most fundamental problems in the study of Kuiper belt objects (KBOs) is to know their true physical size. Without knowledge of their albedos we are not able to distinguish large and dark from small and bright KBOs. Spitzer produced rough estimates of the sizes and albedos of about 20 KBOs.

<div class="cArrow"> </div><div class="cContentInner">One of the most fundamental problems in the study of Kuiper belt objects (KBOs) is to know their true physical size. Without knowledge of their albedos we are not able to distinguish large and dark from small and bright KBOs. Spitzer produced rough estimates of the sizes and albedos of about 20 KBOs.</div>

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Arxiv - The Dark Red Spot on KBO Haumea - 0 views

arxiv.org/0911.0009

astronomy arxiv kuiper belt haumea

shared by Ernesto Guido on 03 Nov 09 - Cached

Ernesto Guido on 03 Nov 09

Kuiper belt object 136108 Haumea is one of the most fascinating bodies in our solar system. Approximately 2000x1600x1000 km in size, it is one of the largest Kuiper belt objects (KBOs) and an unusually elongated one for its size.

<div class="cArrow"> </div><div class="cContentInner">Kuiper belt object 136108 Haumea is one of the most fascinating bodies in our solar system. Approximately 2000x1600x1000 km in size, it is one of the largest Kuiper belt objects (KBOs) and an unusually elongated one for its size.</div>

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Dynamical Constraints on the Origin of Main Belt Comets - 0 views

arxiv.org/0910.5746

astronomy comets main belt comets

shared by Ernesto Guido on 02 Nov 09 - Cached

Ernesto Guido on 02 Nov 09

In an effort to understand the origin of the Main Belt Comets (MBCs) 7968 Elst-Pizzaro, 118401, and P/2005 U1, the dynamics of these three icy asteroids and a large number of hypothetical MBCs were studied. Results of extensive numerical integrations of these objects suggest that these MBCs were formed in-place through the collisional break up of a larger precursor body.

<div class="cArrow"> </div><div class="cContentInner">In an effort to understand the origin of the Main Belt Comets (MBCs) 7968 Elst-Pizzaro, 118401, and P/2005 U1, the dynamics of these three icy asteroids and a large number of hypothetical MBCs were studied. Results of extensive numerical integrations of these objects suggest that these MBCs were formed in-place through the collisional break up of a larger precursor body. </div>

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Young Asteroids Age Fast with a Solar Wind Tan - 0 views

www.universetoday.com/...age-fast-with-a-solar-wind-tan

astronomy asteroids

shared by Ernesto Guido on 25 Apr 09 - Cached

Ernesto Guido on 25 Apr 09

A young asteroid's surface will age prematurely, but it's not caused by the Sun's ultraviolet rays, it's caused by the solar wind…

<div class="cArrow"> </div><div class="cContentInner">A young asteroid's surface will age prematurely, but it's not caused by the Sun's ultraviolet rays, it's caused by the solar wind…</div>

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Comet C/2004 Q2 (MACHHOLZ): Parent Volatiles, a Search for Deuterated Methane, and Con... - 0 views

arxiv.org/0904.3272

astronomy comet machholz comets

shared by Ernesto Guido on 22 Apr 09 - Cached

Ernesto Guido on 22 Apr 09

High-dispersion (l/dl ~ 25,000) infrared spectra of Comet C/2004 Q2 (Machholz) were acquired on Nov. 28-29, 2004, and Jan. 19, 2005 (UT dates) with NIRSPEC at the Keck-2 telescope on Mauna Kea.

<div class="cArrow"> </div><div class="cContentInner">High-dispersion (l/dl ~ 25,000) infrared spectra of Comet C/2004 Q2 (Machholz) were acquired on Nov. 28-29, 2004, and Jan. 19, 2005 (UT dates) with NIRSPEC at the Keck-2 telescope on Mauna Kea. </div>

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Recovery of comet P/2003 H4 (LINEAR) = P/2009 F7 (LINEAR) - 0 views

remanzacco.blogspot.com/...met-p2003-h4-linear-p2009.html

astronomy comets recovery

shared by Ernesto Guido on 18 Apr 09 - Cached

Ernesto Guido on 18 Apr 09

IAU Circular No. 9038, issued on 2009 Apr 15, announces the recovery P/2003 H4 (LINEAR) = P/2009 F7 (LINEAR)

<div class="cArrow"> </div><div class="cContentInner">IAU Circular No. 9038, issued on 2009 Apr 15, announces the recovery P/2003 H4 (LINEAR) = P/2009 F7 (LINEAR)</div>

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How to Keep Asteroids Away: Tie Them Up - 0 views

www.universetoday.com/...eep-asteroids-away-tie-them-up

astronomy asteroids neo

shared by Ernesto Guido on 18 Apr 09 - Cached

Ernesto Guido on 18 Apr 09

David French, a doctoral candidate in aerospace engineering at North Carolina State University is proposing a new tool for the anti-asteroid arsenal.

<div class="cArrow"> </div><div class="cContentInner">David French, a doctoral candidate in aerospace engineering at North Carolina State University is proposing a new tool for the anti-asteroid arsenal.</div>

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Asteroids won't raise killer waves - but mind the splash - 0 views

www.newscientist.com/...aves--but-mind-the-splash.html

astronomy asteroids impacts neo

shared by Ernesto Guido on 16 Apr 09 - Cached

Ernesto Guido on 16 Apr 09

New simulations suggest the monster waves created by a small asteroid impact would break before they reached land, but you still wouldn't want to be near

<div class="cArrow"> </div><div class="cContentInner">New simulations suggest the monster waves created by a small asteroid impact would break before they reached land, but you still wouldn't want to be near</div>

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Asteroids and Near-Earth Objects SlideShow - 0 views

dsc.discovery.com/...near-earth-asteroids

astronomy asteroids comets neo

shared by Ernesto Guido on 14 Apr 09 - Cached

Ernesto Guido on 14 Apr 09

Millions of asteroids are winging around the solar system, but which ones do we have to fear? Browse these images of our ominous neighbors to find out.

<div class="cArrow"> </div><div class="cContentInner">Millions of asteroids are winging around the solar system, but which ones do we have to fear? Browse these images of our ominous neighbors to find out.</div>

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New Circumpolar Comet Yi-SWAN - 0 views

www.skyandtelescope.com/...42672257.html

astronomy new comet comets

shared by Ernesto Guido on 09 Apr 09 - Cached

Ernesto Guido on 09 Apr 09

On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.

<div class="cArrow"> </div><div class="cContentInner">On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.</div>

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New Comet Yi-SWAN - 0 views

www.universetoday.com/...new-comet-yi-swan

astronomy comets yi-swan C_2009 F6

shared by Ernesto Guido on 09 Apr 09 - Cached

Ernesto Guido on 09 Apr 09

Are you ready for the new kid on the block? Its name is Comet Yi-SWAN and it's not going to be very long before it's easily within range of small telescopes

<div class="cArrow"> </div><div class="cContentInner">Are you ready for the new kid on the block? Its name is Comet Yi-SWAN and it's not going to be very long before it's easily within range of small telescopes</div>

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SkyandTelescope.com - A Comet Goes to the Swift - 0 views

www.skyandtelescope.com/...42581152.html

astronomy comet swift lulin

shared by Ernesto Guido on 08 Apr 09 - Cached

Ernesto Guido on 08 Apr 09

NASA's Swift spacecraft reveals new aspects of Comet Lulin when viewing it in X-rays and the ultraviolet.

<div class="cArrow"> </div><div class="cContentInner">NASA's Swift spacecraft reveals new aspects of Comet Lulin when viewing it in X-rays and the ultraviolet.</div>

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New Comet C/2009 F6 (YI-SWAN) - 0 views

remanzacco.blogspot.com/...new-comet-2009-f6.html

astronomy C_2009 F6 (YI-SWAN) comets

shared by Ernesto Guido on 07 Apr 09 - Cached

Ernesto Guido on 07 Apr 09

Image and information about the newly discovered comet C/2009 F6 (YI-SWAN).

<div class="cArrow"> </div><div class="cContentInner">Image and information about the newly discovered comet C/2009 F6 (YI-SWAN).</div>

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Arxiv - The temporal changes in the emission spectrum of Comet 9P/Tempel 1 after Deep ... - 0 views

arxiv.org/0904.0592

astronomy comet 9P deep impact

shared by Ernesto Guido on 06 Apr 09 - Cached

Ernesto Guido on 06 Apr 09

The time dependence of the changes in the emission spectra of Comet 9P/Tempel 1 after Deep Impact are derived and discussed.

<div class="cArrow"> </div><div class="cContentInner">The time dependence of the changes in the emission spectra of Comet 9P/Tempel 1 after Deep Impact are derived and discussed.</div>

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Could Life on Earth Have Come From Ceres? - 0 views

astrobio.net/...modules.php

astronomy ceres asteroids main belt astrobiology

shared by Ernesto Guido on 03 Apr 09 - Cached

Ernesto Guido on 03 Apr 09

Theory that life could have originated on an object in the asteroid belt named Ceres.

<div class="cArrow"> </div><div class="cContentInner">Theory that life could have originated on an object in the asteroid belt named Ceres. </div>

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Arxiv - Dynamic Resonance Effects in the Statistical Distributions of Asteroids and Co... - 0 views

arxiv.org/0904.0371

astronomy comets asteroids centaurs kuiper belt scattered disk