Astronomy Picture of the Day . The Case of the Missing Supernova . ... 13.04.1999 . ... The mystery was uncovered by Wan Chen and Neil Gehrels ( NASA/GSFC ) when studying the source of radioactive elements toward the Vela supernova remnant . ... The above picture of GRO/RX J0852 was taken in gamma-ray light with the Compton Gamma-Ray Observatory and is shown in false-color. ... April 1999 . ... Publications with keywords: supernova - gamma ray . Publications with words: supernova - gamma ray . ...

... April 13, 1999 . The Case of the Missing Supernova . ... About 700 years ago, light from a tremendous explosion reached Earth that should have appeared almost as bright as a full Moon. The bright spot should have lasted for weeks, yet no notation of such an occurrence has been found in historical records. The mystery was uncovered by Wan Chen and Neil Gehrels ( NASA/GSFC ) when studying the source of radioactive elements toward the Vela supernova remnant . ... About APOD > . ...

... ISC Kosmotras . ... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. ... Baikonur Cosmodrome Yasny launch base Downloads . ... Over the years of its successful business operations , ISC Kosmotras has performed 22 Dnepr orbital flights with a total of 128 payloads inserted into their orbits. ... Below is the list of payloads lofted into their target orbits on Dnepr launch missions put together by ISC Kosmotras: . ... MEGSAT-1 (Italy) . ... LATINSAT-A, -B (USA) . ...

... Tonight's Sky . ... Observing . ... Supernova showered Earth with radioactive debris . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Record supernova observed . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... LBA Disk Recording . ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . Monograph Publications . IAU Publications . ... Publications of the ASP (PASP) . ... Building a School Observatory . ... Developing a college or high school observatory will greatly improve science programs, and it?s not as expensive as you might think. ... An astronomical observatory at a college or high school can greatly enhance astronomy, physics, and Earth science programs. ...

1936: Mar 30--Apr 1: Lows were 24,23,25 . ... Record cold for March: 20 on March 6, 1956 . Record cold for April: 25 on April 1, 1936 . ... 1947: Apr 13--15: Highs were 79,81,81 . 1969: Mar 26--28: Highs were 72,75,73 . 1978: Mar 17,19--20: Highs were 77,75,70 . 1995: Mar 28-30; Highs were 70,72,77 . 2005: Mar 7--11: Highs were 71,73,72,69,72 . Record high for March: 78 on March 30, 2003 . Record high for April: 87 on April 20, 1934 . To the Weather Page . ...

DIGITAL WDC EXCHANGE FORMAT . FOR OBSERVATORY 1.0 MINUTE VALUES 1. ... DATA-1 .. DATA-60 are 1-minute values of the given element for that hour. ... Typically, digital 1-minute values received by WDCs from organizations operating automatic magnetic observatory instruments are averages of more frequendy sampled values, e.g. 10-second point samples. ... If the method used to obtain 1-minute average values is important to a user, the WDC will assist in determining the exact procedure applied. ...

Main Sections LabIR main page . ... On January 23, 1998 the space probe NEAR was on its way to its closest approach to Earth. ... However, we were able to record a series of images of the space probe shortly before the sunglint event, and we have assembled them into a movie. At the TIRGO observatory, an observation of the space probe NEAR was organized for the night of January 22-23, 1998. ... We show here a preliminary movie (MPEG format, 412kb) made from 74 frames, each lasting 5 seconds. ...

Bright Supernova - Archives On these pages you will find references to Supernovae which have faded into oblivion. ... Finally, in 1999, when I took over the International Supernova Network's Latest Supernovae page I retitled the main page "Latest Supernovae", BUT, it's the "Latest Supernovae" page of the "Bright Supernovae" pages which are also sub-pages of ISN. ... Brightest supernova in 2005 . ... Brightest supernova in 2002 . ... Brightest supernova in 2000 . ... Brightest supernova in 1999 . ...

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Chandra Proposer's Guide pile up section ] During frame readout, the ACIS CCDs take 40 microsec to (parallel) transfer the charge by one pixel. As a result of this, each frame readout, each pixel is exposed for 40 microsec to a source (plus cosmic X-ray background) at each location along its column. ... Note also that the image does not just trail, it extends along the whole column. ... Chandra Supernova Remnant Catalog . ...

... Team . Observational . ... GRB mini-workshop 2006 . ... About the gamma-ray burst GRB 060218/SN 2006aj (z=0.033): the most recent observational results and about inevitable changes in "standard"/popular scenarios describing the phenomenon of the gamma-ray burst and explosion of a (massive) supernova. ... The BTA spectra of GRB 060218/SN 2006aj, as well as the BTA spectra of GRB 030329/SN 2003dh (z = 0.1685), turn out again to be among the very first spectra of two nearest GRB/SN-bursts. ...

... 00001 /* Example code for FITS-based optical interferometry exchange format 00002 00003 $Id: exchange.h ,v 1.6 2003/04/07 10:20:28 jsy1001 Exp $ 00004 Definitions of data structures, function prototypes 00005 00006 00007 Release 5 7 ... structures */ 00017 /* NB must allow for final null when dimensioning character arrays */ 00018 00020 typedef struct _element { 00021 char tel_name [17]; 00022 char sta_name [17]; 00023 int sta_index ; 00024 float diameter ; 00025 ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Camera 1 . ... At 0230 in the morning of 23rd of April, a bright fireball was detected by the Armagh Observatory video meteor station. ... The fireball was also detected by Robert Cobain's meteor station in Bangor where its brightness was estimated to be -11. From Armagh, its brightness was comparable to, if slightly less than, that of the Full moon. ... Video Meteor Station . Meteor Log NI . ...

... ESO Fellow . ... Before that I was a Postdoctoral Research Fellow at the University of Toronto with Marten van Kerkwijk . I finished my thesis, titled "Type Ia Supernovae: Progenitors and explosions" , in 2011 with Brian Schmidt at the Australian National University. My research focuses stars before, during and after explosion (exploding stars are also known as supernovae). ... The lack of hydrogen in Type I supernovae is a bit of a mystery. ...

... Abstract Read data from a character column in a specified EK record. ... Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- handle I Handle attached to EK file. segno I Index of segment containing record. recno I Record from which data is to be read. column I Column name. lenout I Maximum length of output strings. nvals O Number of values in column entry. cvals O Character values in column entry. isnull O Flag indicating whether column entry is null. ...

WDC-A Digital Exchange Format for One-Minute Geomagnetic Data (Update August 1993) 1. The logical record length is 400 coded characters containing header information, blank spaces, and data for one element for one hour. ... Each logical record contains header information and data in the following format: North polar distance, longitude, year, month, day, hour, element, observatory code, blank spaces, 60 data values, and an hourly mean. ... ORG is the origin of the data. A = Alaska Chain. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Image record de la surface du Soleil . ... La premi†иre image d'une r†йsolution de 80 km avait †йt†й publi†йe par Ciel & Espace en mai 2009. ...

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RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Possibilities of observing . ... Investigations of the SSRT 5.7 GHz radio maps in conjunction with images obtained in other emission ranges, suggested the following conclsions: . ... Solar images obtained in line H a ;(on the left, 16:11 UT, Big Bear observatory) and in the microwave emission (on the right, 04:04 UT, SSRT) 4 march 1997 . ...