Astronomy Picture of the Day . The Case of the Missing Supernova . ... 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. ... Publications with keywords: supernova - gamma ray . Publications with words: supernova - gamma ray . ... Shocked by Supernova 1987A . ...

... 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 > . ...

... 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 . ...

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. ...

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 . ...

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. ...

... 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....

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

... 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. ...

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. ...

... 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. ...

... arrayx : _oi_array . arrayy : _oi_array . ... arrname : _oi_t3 , _oi_vis2 , _oi_vis , _oi_array . ... dec_err : _target . ... flag : _oi_t3_record , _oi_vis2_record , _oi_vis_record . ... int_time : _oi_t3_record , _oi_vis2_record , _oi_vis_record . ... revision : _oi_t3 , _oi_vis2 , _oi_vis , _oi_wavelength , _oi_target , _oi_array . ... sta_index : _oi_t3_record , _oi_vis2_record , _oi_vis_record , _element . ... target_id : _oi_t3_record , _oi_vis2_record , _oi_vis_record , _target . ...

... 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. ...

... 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) . ...

home publications > mercury . ... ASP Conference Series . ... Cooking Up Heavy Elements in the Cosmos . ... Generally, only a few exceptionally inquisitive students venture beyond the simple statement to ask the question: "If massive stars can only fuse elements up to iron in their cores, then how do we get all the elements heavier than iron?" ... Furthermore, most of us are familiar with the thermonuclear fusion processes that take place in the cores of stars and generate the elements up to iron. ...

... Date . ... Authors . ... 1.000 . ... Kniazev, Alexei Y.; Grebel, Eva K.; Pustilnik, Simon A.; Pramskij, Alexander G.; Kniazeva, Tamara F.; Prada, Francisco; Harbeck, Daniel . Low Surface Brightness Galaxies in the Sloan Digital Sky Survey. ... 08/2001 . ... V. The fifth list of 161 galaxies . ... IV (Kniazev+, 2001) . ... Email results to: . ... Return:  Results  Form for manual query . ... Databases queried: Astronomy/Planetary Authors: KNIAZEVA, T Start date: 00/1990 End date: 03/2004 . ...

... Главная Астрономия Фотографии Рекорды Форум Гостевая книга . Азбука . ... Обмен кнопками/баннерами в самом . ... Азбука звездного неба / Рекорды и рекордсмены . ... Самая большая планета . Самая маленькая планета . Самая яркая планета . ... Планета с самым большим количеством лун . Самая большая луна . ... Самая большая группа солнечных пятн . ... Самая большая звезда . ... Самая яркая звезда . Звезда с самой большой светимостью . ... Звезда с самым большим собственным движением . ...

... SSAU History . SSAU roadmap . ... Student clubs . ... On June 27 SSAU student Vladislav Kozlov has become the winner in a medley relay of 4x100 meters at the European Games in Baku within the Russian team in swimming. ... Vladislav Kozlov, the first year student of SSAU Institute of Electronics and Instrumentation, at the last stage of freestyle swim managed to bring victory to his team ahead of the English and Polish sportsmen. ... e-mail: ssau@ssau.ru . http://www.ssau.ru . ...

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... Telescopes . ... Diameter of circular antenna . ... Number of antenna elements . ... Geometrical area . ... Effective area of full circle . ... Wavelength range . ... Frequency range . ... 2 arcsec . ... Flux density limit . ... Absolute brightness temperature limit . 0.050 mK . ...