Group items tagged astronomy - Comets & Asteroids

Solar wind tans young asteroids - 0 views

www.astronomy.com/...default.aspx

astronomy asteroids solar wind

shared by Ernesto Guido on 25 Apr 09 - Cached

Ernesto Guido on 25 Apr 09

A new study published in Nature this week reveals that asteroid surfaces age and redden faster than previously thought - in less than a million years, the blink of an eye for an asteroid.

<div class="cArrow"> </div><div class="cContentInner">A new study published in Nature this week reveals that asteroid surfaces age and redden faster than previously thought - in less than a million years, the blink of an eye for an asteroid.</div>

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Sky-event preview: The 2009 Lyrid meteor shower - 0 views

www.astronomy.com/...default.aspx

astronomy meteors lyrid meteor shower

shared by Ernesto Guido on 18 Apr 09 - Cached

Ernesto Guido on 18 Apr 09

The Lyrid meteor shower peaks April 22, and conditions favor a great display.

<div class="cArrow"> </div><div class="cContentInner">The Lyrid meteor shower peaks April 22, and conditions favor a great display.</div>

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Satellite to study near-Earth asteroids' wobbly signature - 0 views

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astronomy asteroids nasa lisa

shared by Ernesto Guido on 14 Apr 09 - Cached

Ernesto Guido on 14 Apr 09

'Noise' from the LISA mission will give scientists a way to study the mass and number of near-Earth asteroids.

<div class="cArrow"> </div><div class="cContentInner">'Noise' from the LISA mission will give scientists a way to study the mass and number of near-Earth asteroids.</div>

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Ground-based observations support comet missions - 0 views

www.astronomy.com/...default.aspx

astronomy deep impact comets

shared by Ernesto Guido on 08 Apr 09 - Cached

Ernesto Guido on 08 Apr 09

By combining spacecraft observations with ground-based telescope observations of a comet, scientists can create a more detailed model of what is happening on the comet's surface over time.

<div class="cArrow"> </div><div class="cContentInner">By combining spacecraft observations with ground-based telescope observations of a comet, scientists can create a more detailed model of what is happening on the comet's surface over time.</div>

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Spitzer catches star cooking up comet crystals - 0 views

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astronomy comets solar system

shared by Ernesto Guido on 14 May 09 - Cached

Ernesto Guido on 14 May 09

Observations show the production of crystalline silicates like those found in comets and meteorites in our own solar system.

<div class="cArrow"> </div><div class="cContentInner">Observations show the production of crystalline silicates like those found in comets and meteorites in our own solar system.</div>

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Astronomy: The rock that fell to Earth - 0 views

www.nature.com/...458401a.html

astronomy. 2008 TC3 asteroids impact

shared by Ernesto Guido on 27 Mar 09 - No Cached

Ernesto Guido on 27 Mar 09

When an asteroid was spotted heading towards our planet last October, researchers rushed to document a cosmic impact from start to finish for the first time.

<div class="cArrow"> </div><div class="cContentInner">When an asteroid was spotted heading towards our planet last October, researchers rushed to document a cosmic impact from start to finish for the first time. </div>

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Comet C/2009 R1 (McNaught) - Animation & Images - 0 views

remanzacco.blogspot.com/...009-r1-mcnaught-animation.html

astronomy C_2009 R1 comets

shared by Ernesto Guido on 04 Jun 10 - Cached

Ernesto Guido on 04 Jun 10

The comet is now around magnitude 7.5 and it will be a nice binocular object. Throughout this apparition it will be low in the east or northeast when dawn begins to brighten.

<div class="cArrow"> </div><div class="cContentInner">The comet is now around magnitude 7.5 and it will be a nice binocular object. Throughout this apparition it will be low in the east or northeast when dawn begins to brighten.</div>

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Impact Flash on Jupiter - 1 views

remanzacco.blogspot.com/...impact-flash-on-jupiter.html

astronomy jupiter impact anthony wesley

shared by Ernesto Guido on 04 Jun 10 - Cached

Ernesto Guido on 04 Jun 10

Amateur astronomers Anthony Wesley (Australia) and Christopher Go (Philippines) have independently observed an impact flash on Jupiter.

<div class="cArrow"> </div><div class="cContentInner">Amateur astronomers Anthony Wesley (Australia) and Christopher Go (Philippines) have independently observed an impact flash on Jupiter.</div>

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Rosetta flyby of asteroid (21) Lutetia - 1 views

remanzacco.blogspot.com/...by-of-asteroid-21-lutetia.html

astronomy rosetta lutetia

shared by Ernesto Guido on 12 Jul 10 - Cached

Ernesto Guido on 12 Jul 10

On July 10, 2010 ESA's Rosetta spacecraft imaged asteroid Lutetia within an estimated distance of 3170 kilometers.

<div class="cArrow"> </div><div class="cContentInner">On July 10, 2010 ESA's Rosetta spacecraft imaged asteroid Lutetia within an estimated distance of 3170 kilometers.</div>

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Comets & Neo: New Comet Discovery: P/2009 QG31 - 0 views

remanzacco.blogspot.com/...omet-discovery-p2009-qg31.html

astronomy comets P_2009 QG31

shared by Ernesto Guido on 02 Oct 09 - Cached

Ernesto Guido on 02 Oct 09

IAU circular No. 9078, issued on 2009, Sept. 29, announces that an asteroidal object, discovered with a 0.45-m f/2.8 reflector + CCD by the "La Sagra Sky Survey" (Spain), has been reported to show cometary features by several observers, involved in its astrometric follow-up.

<div class="cArrow"> </div><div class="cContentInner">IAU circular No. 9078, issued on 2009, Sept. 29, announces that an asteroidal object, discovered with a 0.45-m f/2.8 reflector + CCD by the "La Sagra Sky Survey" (Spain), has been reported to show cometary features by several observers, involved in its astrometric follow-up.</div>

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What (Maybe) Didn't Kill the Dinosaurs: Comets - 0 views

www.scientificamerican.com/article.cfm

astronomy comets oort cloud

shared by Ernesto Guido on 02 Oct 09 - Cached

Ernesto Guido on 02 Oct 09

A new model for comet production revises the theory of their origins

<div class="cArrow"> </div><div class="cContentInner">A new model for comet production revises the theory of their origins</div>

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Spitzer observations of the asteroid-comet transition object and potential spacecraft ... - 0 views

arxiv.org/0910.0116

astronomy comets Wilson-Harrington asteroids

shared by Ernesto Guido on 02 Oct 09 - Cached

Ernesto Guido on 02 Oct 09

Near-Earth asteroid-comet transition object 107P/ (4015) Wilson-Harrington is a possible target of the joint European Space Agency (ESA) and Japanese Aerospace Exploration Agency (JAXA) Marco Polo sample return mission. Physical studies of this object are relevant to this mission, and also to understanding its asteroidal or cometary nature.

<div class="cArrow"> </div><div class="cContentInner">Near-Earth asteroid-comet transition object 107P/ (4015) Wilson-Harrington is a possible target of the joint European Space Agency (ESA) and Japanese Aerospace Exploration Agency (JAXA) Marco Polo sample return mission. Physical studies of this object are relevant to this mission, and also to understanding its asteroidal or cometary nature.</div>

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New Comet Discovery: P/2009 S2 (McNAUGHT) - 1 views

remanzacco.blogspot.com/...scovery-p2009-s2-mcnaught.html

astronomy comets

shared by Ernesto Guido on 28 Sep 09 - Cached

Ernesto Guido on 28 Sep 09

IAUC nr. 9075, issued on 2009 Sept. 24th, announces the discovery of another comet by Robert McNaught, named P/2009 S2.

<div class="cArrow"> </div><div class="cContentInner">IAUC nr. 9075, issued on 2009 Sept. 24th, announces the discovery of another comet by Robert McNaught, named P/2009 S2.</div>

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Perseids 2010 - 1 views

remanzacco.blogspot.com/...perseids-2010.html

astronomy perseids meteors meteor shower

shared by Ernesto Guido on 13 Aug 10 - Cached

Ernesto Guido on 13 Aug 10

The Perseid 2010 peak was expected on the night of August 12-13 between 18h and 07h UT with a ZHR (Zenithal Hourly Rate) of ~100 meteors per hour.

<div class="cArrow"> </div><div class="cContentInner">The Perseid 2010 peak was expected on the night of August 12-13 between 18h and 07h UT with a ZHR (Zenithal Hourly Rate) of ~100 meteors per hour.</div>

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South African Fireball - November 21 - 0 views

remanzacco.blogspot.com/...ican-fireball-november-21.html

astronomy fireball meteors south africa

shared by Ernesto Guido on 08 Dec 09 - Cached

Ernesto Guido on 08 Dec 09

After the Utah Fireball on Nov. 18, another bright fireball has been seen over South Africa aroud 11pm local time of Nov. 21, 2009. The meteor was spotted by dozens people as it passed over Johannesburg and Pretoria in Kauteng province on Saturday.

<div class="cArrow"> </div><div class="cContentInner">After the Utah Fireball on Nov. 18, another bright fireball has been seen over South Africa aroud 11pm local time of Nov. 21, 2009. The meteor was spotted by dozens people as it passed over Johannesburg and Pretoria in Kauteng province on Saturday. </div>

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Dinosaur-killing impact set Earth to broil, not burn - 0 views

www.newscientist.com/...t-earth-to-broil-not-burn.html

astronomy asteroids dinosaurs impact

shared by Ernesto Guido on 08 Dec 09 - Cached

Ernesto Guido on 08 Dec 09

The asteroid impact that ended the age of dinosaurs 65 million years ago didn't incinerate life on our planet's surface - it just broiled it, a new study suggests. The work resolves nagging questions about a theory that the impact triggered deadly wildfires around the world, but it also raises new questions about just what led to the mass extinction at the end of the Cretaceous period.

<div class="cArrow"> </div><div class="cContentInner">The asteroid impact that ended the age of dinosaurs 65 million years ago didn't incinerate life on our planet's surface - it just broiled it, a new study suggests. The work resolves nagging questions about a theory that the impact triggered deadly wildfires around the world, but it also raises new questions about just what led to the mass extinction at the end of the Cretaceous period.</div>

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New Comet Discovery C/2010 A3 (HILL) - 1 views

remanzacco.blogspot.com/...t-discovery-c2010-a3-hill.html

astronomy comets C_2010 A3 (HILL)

shared by Ernesto Guido on 11 Jan 10 - Cached

Ernesto Guido on 11 Jan 10

IAU circular No. 9106, issued on 2010, Jan. 09, announces the discovery of another comet by R. E. Hill, named C/2010 A3. It was discovered with the Catalina 0.68-m Schmidt telescope + CCD in the course of the Catalina Sky Survey.

<div class="cArrow"> </div><div class="cContentInner">IAU circular No. 9106, issued on 2010, Jan. 09, announces the discovery of another comet by R. E. Hill, named C/2010 A3. It was discovered with the Catalina 0.68-m Schmidt telescope + CCD in the course of the Catalina Sky Survey.</div>

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NEO 2010 AL30 Close Approach - 0 views

remanzacco.blogspot.com/...-2010-al30-close-approach.html

astronomy neo asteroids 2010 AL30

shared by Ernesto Guido on 11 Jan 10 - Cached

Ernesto Guido on 11 Jan 10

MPEC 2010-A59 announces the discovery by Linear survey of a new object designated 2010 AL30. According to the preliminary orbit, 2010 AL30 will approach Earth at about 0.34 lunar-distance at 1248 UTC on 13 Jan. 2010 at magnitude 14 and it will be moving at about 10 arcsec/sec.

<div class="cArrow"> </div><div class="cContentInner">MPEC 2010-A59 announces the discovery by Linear survey of a new object designated 2010 AL30. According to the preliminary orbit, 2010 AL30 will approach Earth at about 0.34 lunar-distance at 1248 UTC on 13 Jan. 2010 at magnitude 14 and it will be moving at about 10 arcsec/sec.</div>

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GEMINIDS 2009 - 0 views

remanzacco.blogspot.com/...geminids-2009.html

astronomy geminids meteors 2009

shared by Ernesto Guido on 16 Dec 09 - Cached

Ernesto Guido on 16 Dec 09

This weekend, Earth passed through a stream of debris from 3200 Phaethon. In 1983 Whipple identified Phaethon like the parent of Geminid meteor stream. But it has never displayed unambiguous cometary activity. The Geminids provide the most impressive meteor display of any of the annual showers.

<div class="cArrow"> </div><div class="cContentInner">This weekend, Earth passed through a stream of debris from 3200 Phaethon. In 1983 Whipple identified Phaethon like the parent of Geminid meteor stream. But it has never displayed unambiguous cometary activity. The Geminids provide the most impressive meteor display of any of the annual showers.</div>

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Hubble Finds Smallest Kuiper Belt Object Ever Seen - 0 views

hubblesite.org/...full

astronomy kuiper belt hubble

shared by Ernesto Guido on 16 Dec 09 - Cached

Ernesto Guido on 16 Dec 09

NASA's Hubble Space Telescope has discovered the smallest object ever seen in visible light in the Kuiper Belt, a vast ring of icy debris that is encircling the outer rim of the solar system just beyond Neptune.

<div class="cArrow"> </div><div class="cContentInner">NASA's Hubble Space Telescope has discovered the smallest object ever seen in visible light in the Kuiper Belt, a vast ring of icy debris that is encircling the outer rim of the solar system just beyond Neptune.</div>

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Group items tagged

Solar wind tans young asteroids - 0 views

Sky-event preview: The 2009 Lyrid meteor shower - 0 views

Satellite to study near-Earth asteroids' wobbly signature - 0 views

Ground-based observations support comet missions - 0 views

Spitzer catches star cooking up comet crystals - 0 views

Astronomy: The rock that fell to Earth - 0 views

Comet C/2009 R1 (McNaught) - Animation & Images - 0 views

Impact Flash on Jupiter - 1 views

Rosetta flyby of asteroid (21) Lutetia - 1 views

Comets & Neo: New Comet Discovery: P/2009 QG31 - 0 views

What (Maybe) Didn't Kill the Dinosaurs: Comets - 0 views

Spitzer observations of the asteroid-comet transition object and potential spacecraft ... - 0 views

New Comet Discovery: P/2009 S2 (McNAUGHT) - 1 views

Perseids 2010 - 1 views

South African Fireball - November 21 - 0 views

Dinosaur-killing impact set Earth to broil, not burn - 0 views

New Comet Discovery C/2010 A3 (HILL) - 1 views

NEO 2010 AL30 Close Approach - 0 views

GEMINIDS 2009 - 0 views

Hubble Finds Smallest Kuiper Belt Object Ever Seen - 0 views

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