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Ernesto Guido

Utah Fireball - 18 November 2009 - 0 views

remanzacco.blogspot.com/...fireball-18-november-2009.html

astronomy fireball utah fireball

shared by Ernesto Guido on 21 Nov 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 21 Nov 09
     
    On Nov. 18, just after midnight local time (MST) a great fireball was seen over parts of the western United States
Ernesto Guido

Leonids 2009 - 0 views

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

astronomy leonids meteors

shared by Ernesto Guido on 21 Nov 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 21 Nov 09
     
    According to preliminary counts from the International Meteor Organization (IMO) the Leonids meteors reached a ZHR(max) ~ 120/130 around 22UT of Nov. 17, as predicted by forecasters.
Ernesto Guido

Small Asteroid 2009 VA Whizzes By The Earth - 0 views

neo.jpl.nasa.gov/...news166.html

astronomy asteroid 2009 VA neo

shared by Ernesto Guido on 10 Nov 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 10 Nov 09
     
    A newly discovered asteroid designated 2009 VA, which is only about 7 meters in size, passed about 2 Earth radii (14,000 km) from the Earth's surface Nov. 6 at around 16:30 EST. This is the third-closest known (non-impacting) Earth approach on record for a cataloged asteroid.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

Meteorite crashed into an SUV near Hamilton - 1 views

www.ctv.ca/...20091016

astronomy meteorites

shared by Ernesto Guido on 27 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 27 Oct 09
     
    Astronomers say they have found a meteorite fragment the size of a golf ball near Hamilton, which they believe streaked across the night sky above Southern Ontario in late September.
Ernesto Guido

Asteroid Impactor Reported over Indonesia - 1 views

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

astronomy fireball meteors

shared by Ernesto Guido on 27 Oct 09 - Snapshot
  • Ernesto Guido
    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).
Ernesto Guido

Cosmic Blast Rattles Indonesia - 1 views

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

astronomy fireball airburst meteor

shared by Ernesto Guido on 27 Oct 09 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

Ice Confirmed On An Asteroid - 0 views

www.sciencenews.org/...Ice_confirmed_on_an_asteroid

astronomy asteroids 24 Themis main-belts comets

shared by Ernesto Guido on 13 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 13 Oct 09
     
    Frozen water leaves its signature over the entire surface of the asteroid 24 Themis
Ernesto Guido

Asteroid isn't just a dry heap of rubble - 0 views

www.newscientist.com/...just-a-dry-heap-of-rubble.html

astronomy asteroid 24 Themis

shared by Ernesto Guido on 13 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 13 Oct 09
     
    Two teams have found evidence of water ice on the asteroid 24 Themis; the find suggests asteroids could have delivered some water to the early Earth
Ernesto Guido

Fireball event of September 25, 2009 - 0 views

aquarid.physics.uwo.ca/...25sept2009

astronomy fireball meteor

shared by Ernesto Guido on 11 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 11 Oct 09
     
    At 9:03 pm on Friday night September 25, 2009 (01:03 UT Sept 26) seven all-sky cameras of Western's Southern Ontario Meteor Network (SOMN) recorded a brilliant fireball in the evening sky over the west end of Lake Ontario.
Ernesto Guido

Comet Lulin (2007 N3): a Detailed Look at a Corkscrew Morphology & the Fascinating 3-D Prob... - 0 views

www.lowell.edu/blog

astronomy comets lulin

shared by Ernesto Guido on 07 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 07 Oct 09
     
    During a presentation on Tuesday at the American Astronomical Society's Division of Planetary Sciences meeting in Puerto Rico, Knight and colleague, David Schleicher, Lowell Observatory astronomer, described their research, Narrowband Observations of Comet Lulin (2007 N3).
Ernesto Guido

Comet 10P/Tempel 2's Nucleus Rotation Determined to Within 10 Seconds - 0 views

www.lowell.edu/blog

astronomy comets 10p_tempel

shared by Ernesto Guido on 07 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 07 Oct 09
     
    Lowell astronomer David Schleicher led a team that made the best measurement of the comet's rotation period, showing that the rotation period of Tempel 2's nucleus has lengthened, or the comet has slowed down, by about 10 seconds every five years.
Ernesto Guido

NASA Refines Asteroid Apophis' Path Toward Earth - 0 views

www.jpl.nasa.gov/...newsfeatures.cfm

astronomy apophis asteroids neo

shared by Ernesto Guido on 07 Oct 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 07 Oct 09
     
    Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 02 Oct 09
     
    A new model for comet production revises the theory of their origins
Ernesto Guido

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

arxiv.org/0910.0116

astronomy comets Wilson-Harrington asteroids

shared by Ernesto Guido on 02 Oct 09 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

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 - Snapshot
  • Ernesto Guido
    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.
Ernesto Guido

Asteroid Juno Grabs the Spotlight - 0 views

www.jpl.nasa.gov/...newsfeatures.cfm

astronomy asteroids juno

shared by Ernesto Guido on 17 Sep 09 - Snapshot
  • Ernesto Guido
    Ernesto Guido on 17 Sep 09
     
    Toward the end of September, the sun will turn a spotlight on the asteroid Juno, giving that bulky lump of rock a rare featured cameo in the night sky.
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