Astronomy Picture of the Day . ... 30.12.1998 . ... Credit: High-Z Supernova Search Team , HST , NASA Explanation: Far away, long ago, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... The large number and great distances to supernovae measured in 1998 have been interpreted as indicating that we live in a previously unexpected universe . ... Publications with keywords: cosmology - universe - supernova . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 May 31 . Supernova 1994D and the Unexpected Universe . Image Credit: High-Z Supernova Search Team , HST , NASA . Explanation: Long ago, far away, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... About APOD | ...

... December 30, 1998 . Supernova 1994D and the Unexpected Universe . Credit: High-Z Supernova Search Team , HST , NASA . Explanation: Far away, long ago, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... The large number and great distances to supernovae measured in 1998 have been interpreted as indicating that we live in a previously unexpected universe . ... About APOD > . ... NASA Technical Rep.: ...

... The expansion is measured as a number called the Hubble Constant . ... Our value is about 20% lower than the one got with the Hubble Space Telescope in 1994," said Dr Jim Lovell, leader of the team that made the measurement. The Hubble Constant is named after American astronomer Edwin Hubble, who in the 1920s found that other galaxies were moving away from ours. ... The Hubble Constant links the galaxy's distance with its speed." ... A short run-down on the Hubble Constant: . ...

This page is devoted to information on Supernova 1999dq in NGC 976 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. Supernova 1999dq is the 24th LOSS discovery this year. ... VSNET Light curve (requires JAVA). ... vsnet-alert 3442 ] SNe 1999dp and 1999dq . vsnet-chat 2285 ] Host galaxy of SN1999dq . ...

... In order to disentangle the effects of different climate variables on tree-ring growth rates of different species, and to explore the possibility that more than one species could improve the accuracy of the reconstructions of climate using tree rings, a methodical study of trees in close proximity to the Armagh Observatory climate station was initiated together with Ana Maria Garc?a Su?rez, and continued as part of the latter's PhD thesis with John Butler and Professor Mike Baillie (QUB). ...

... The parameter y   characterizes the ratio between the gravitational and magnetic ``properties'' of a star and will, therefore, be called the gravimagnetic parameter . Two magnetic rotators having quite different magnetic fields, subjected to different external conditions but with identical gravimagnetic parameters, have similar magnetospheres, as long as the accretion rate is quite low ( ). ... For isolated rotators, the accretion rate  yr is assumed. ...

... The parameter dialog presents you with the parameters that the task will use. ... list parameters . ... In general, the edit field field is preceded by a label , specifying the name of the parameter. ... If that is the case, a pull-down menu is shown next to the edit field of that parameter. Other parameters may have a browse button next to the edit field . Clicking on this button will pop-up a browser , in which you can select the value of this parameter by browsing through your file system. ...

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. ...

... ESO . ... However, new studies by two independent research teams, based on observations of exploding stars (supernovae) by ESO astronomers [1] with astronomical telescopes at the La Silla Observatory as well as those of their colleagues at other institutions, appear to show that the expansion of the Universe is accelerating . ... They will soon be forthcoming, especially from new and large telescopes like the ESO Very Large Telescope (VLT) , that has recently delivered its first, impressive results....

Proposal Identification No.: ... Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Astronomy Spectroscopy Solar System 15 Hours 1 hour Arecibo OH Observations of Comet C/2013 US10 Catalina, December 2015- January 2016 ABSTRACT: Comet C/2013 US10 Catalina is a long-period comet expected to be very bright and observable at Arecibo from January 2015. ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... PROBLEMS: "Unknown" (i.e. no physics model) components; What's a "Good-Enough-Fit" (e.g. Poisson)? ... ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR ...

... Several knots of radio emission in the jets were identified and their motion could be followed between the images. ... The brightness evolution of the knots was found to be consistent with exponential decay of time constant 16 days. ... Knot Velocity and Distance Measurement . ... This paper presents preliminary results of recent 5 GHz observations of SS433 using MERLIN , including a measurement of its distance and an attempt to determine the behaviour of the knot brightness decay. ...

... HST . UDF/ACS Parameters: . Pointing, Filters, Depth, and Status . ... Data . ... Based on a consensus recommendation of a Scientific Advisory Committee to the STScI Director Steven Beckwith, supported by planning documents from a local Working Group , the parameters below have been adopted for the HST/ACS Ultra Deep Field. ... At the center of this picture the light blue diamond shows the ACS/WFC pointing of the Ultra Deep Field (UDF). ... Relative Depth of UDF w.r.t other HST surveys . ...

... 18-Jan-2010 17:22 . ... Apache/2.2.3 (CentOS) Server at www.wdcb.ru Port 80 ...

Next: Context Levels Up: MIDAS Command Language Previous: Interrupting Procedures . ... In MIDAS, the ENTRY command defines entry points for different procedures in the same file. These individual procedures are executed by specifying also their entry point besides the file name in the `@@' command. ... DEFINE/PARAM P1 11 NUMBER "Enter input number: " . DEFINE/MAXPAR 1 ! only one parameter expected . ... DEFINE/PARAM P1 spiral IMA "Enter input image: " . ... DEFINE/LOCAL LOOP/I/1/1 0 . ...

... A theory suggests that a certain sub-class of gamma-ray bursts all have the same absolute magnitude. ... The author claims that this absolute magnitude is so different from that in the previous sample that this must belong to a new sub-class of gamma-ray bursts. ... To do this, there needs to be some feature in their spectra which correlates with their absolute magnitude. ... Consider a telescope which is continually monitoring a star, looking for transits due to planets orbiting this star. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...