... 2007 December 31 . A Year of Spectacular Comets . ... Explanation: Two spectacular comets graced Earth's skies during 2007. Both comets became bright enough to be seen by the unaided eye of the casual sky enthusiast . Early in 2007, Comet McNaught grew brighter than any comet in 40 years, displaying a beautiful dust tail that flowed across the sky. ... Toward the year's end, normally docile and faint Comet Holmes brightened suddenly and unexpectedly to naked eye visibility. ...

... 2015 - 2016 . ... Eugene Higgins Professor of Astrophysics, Princeton University . ... December 8, 2015 . ... November 10, 2015 . ... University of the Sciences in Philadelphia author . ... Amateur Astronomer . ... 2014 - 2015 . ... June 9, 2015 . ... Digital Planetarium and the 2012 Transit of Venus from Hawaii . 2013 - 2014 . ... International Occultation Timing Association . ... 2012 - 2013 . ... 2011 - 2012 . ... Princeton University . ... Amateur Astronomers Association of Princeton, Inc., ...

... Home Education Workshops at Adorama Astro Imaging Workshop: Planetary Astro Imaging with a DSLR ? December 7, 2014 . ... Astro Answers . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama€а For the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Two sad deaths, Ursids, Solstice, IAA New Year Party . Issued 2008 December 16th . Lecture, Schools competition, APOD, Geminids, Leonids 2009 . ... Lecture, ISS + Space Shuttle . ... IAA Telescope event, possible Leonid outburst, Robinson Lecture . ... IAA Lecture, Taikonauts, WSP, ISS + ATV, Astrocast, ASGI, Star Stories, RIA . ... Prof Smartt: Inaugural Lecture, Galway lecture, IAA AGM, Mercury, research posts . ... IAA Astronomy Evening, Lecture, ATV Shuttle Launches . ...

... ANU Home | Search ANU | ... Research School of Astronomy and Astrophysics . Mount Stromlo and Siding Spring Observatories . ... It is envisaged that a number of people will be interested in attending both this meeting and the Texas Symposium , which will be held in Melbourne during the following week (11 -15 December). ... Disks . ... Small scale jets and winds . ... John Hawley - General Relativistic Magnetohydrodynamic Simulations of Black Hole Accretion Disks and Jets . ... Contact ANU . ...

... Early studies of PMS stars focused on T associations, especially Taurus-Auriga. However, one might expect low mass star formation to be different in OB associations. ... He identified Orion OB1a as the stars northwest of the belt. Orion OB1b is composed of the stars near the belt, including the belt stars and Orionis. ... He finds no perceptible distance change within the Orion OB1b association and finds the distance modulus to be 7.8 and 7.9 for Orion OB1a and OB1b respectively. ...

The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

... 2000 December 15 . IC443's Neutron Star . ... Explanation: Using x-ray data from the orbiting Chandra Observatory along with radio data from the Very Large Array , a team of researchers has discovered evidence for a new example of one of the most bizarre objects known to modern astrophysics -- a neutron star . ... The core collapsed when the star, located a reassuring 5,000 light-years away in the constellation Gemini , exploded long ago. How long ago? ... About APOD | ... NASA Technical Rep.: ...

. I joined NAIC staff in December 1992 via NFRA (Netherlands) and IISc/JAP (India). The topics of my current research include: . (1) Search for Neutral hydrogen in the host galaxies of AGNs at different redshifts. (2) Physical nature and spatial distribution of the ionized component of the interstellar matter. (3) Physics of compact extragalactic radio sources. I am a member of the VLBI group and the Friend of VLBI observations at the observatory. 2008 EVN sessions are here. Tapasi Ghosh .