Skip to main content

Home/ Groups/ Comets & Asteroids
Ernesto Guido

An Avalanche of Dark Asteroids - 1 views

  •  
    WISE and Asteroids
Ernesto Guido

Asteroid killed off the dinosaurs, says international scientific panel - 1 views

  •  
    The Cretaceous-Tertiary mass extinction, which wiped out the dinosaurs and more than half of species on Earth, was caused by an asteroid colliding with Earth and not massive volcanic activity, according to a comprehensive review of all the available evidence." id="metasummary
Ernesto Guido

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

  •  
    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.
Ernesto Guido

Meteorite crashed into an SUV near Hamilton - 1 views

  •  
    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

  •  
    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

  •  
    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

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

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

Impact Flash on Jupiter - 1 views

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

Rosetta flyby of asteroid (21) Lutetia - 1 views

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

Perseids 2010 - 1 views

  •  
    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.
Ernesto Guido

Fireball over Wisconsin - Missouri , April 14 - 2 views

  •  
    A bright fireball has been seen over Wisconsin aroud 10:00 p.m. local time of April 14, 2010. The fireball has been seen from Wisconsin to Missouri. National Weather Service offices in La Crosse, Wisconsin, Davenport and Des Moines, Iowa, and St. Louis and Kansas City in Missouri all received numerous reports.
Ernesto Guido

Utah Fireball - 18 November 2009 - 0 views

  •  
    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

  •  
    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

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

  •  
    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

Arxiv - The Sizes of Kuiper Belt Objects - 0 views

  •  
    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

  •  
    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

  •  
    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

Fireball event of September 25, 2009 - 0 views

  •  
    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

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

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

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

  •  
    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.
1 - 20 Next › Last »
Showing 20 items per page