... He made observations of a supernova (literally: nova= "new star") in 1572 (we now know that a supernova is an exploding star, not a new star). ... Brahe's meticulous observations showed that the supernova did not change positions with respect to the other stars (no parallax). ... This was early evidence against the immutable nature of the heavens, although Brahe did not interpret the absence of parallax for stars correctly, as we discuss below. Brahe made careful observations of a comet in 1577. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Radio luminosity - spectral type plot for all ultracool dwarfs observed at 4.9 GHz. ... Whilst no radio emission was detected from any of the targets, significant upper limits were placed on the radio luminosities that are below the luminosities of previously detected ultracool dwarfs. Combining our results with those from the literature gives a detection rate for dwarfs in the spectral range M7 тАУ L3.5 of тИ® 9%. ...

... Using multifrequency radio data obtained with the GMRT, VLA and RT, we are defining a sample of young radio AGN in the Spitzer FLS field which are associated with midinfrared sources. ... GMRT Observations The Spitzer extragalactic First Look Survey (FLS) field was observed with the Giant Metrewave Radio Telescope (GMRT, Figure 1), Pune, India, at 610 MHz in March 2004. ... Figure 1: Three of the antennas in the inner square kilometre of the Giant Metrewave Radio Telescope (GMRT). ...

... In January 2015 using the Mini-MegaTORTORA multichannel optical sky-monitoring system with subsecond temporal resolution, the observations of comet C/2014 Q2 (Lovejoy) and asteroid 357439 2004 BL86 were carried out. ... It was put into operation in 2014. ... Comet C/2014 Q2 (Lovejoy). The 60-min-long observations with the Mini-MegaTORTORA system on Jan 19, 2015 at 16:50 UT, exposure time 30 s, BVR synchronously . ... Asteroid 357439 2004 BL86. ...

... News . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... Fermi observations of dwarf galaxies provide new insights on dark matter . ... This dwarf spheroidal galaxy in the constellation Fornax is a satellite of our Milky Way and is one of 10 used in Fermi's dark matter search. ... The motions of a dwarf galaxy's stars trace out the profile of the massive dark matter halo in which they're embedded, but these tiny galaxies often have very few stars to track. ...

The deferred photometric pipeline of SNLS uses only photometry to detect and classify type Ia supernovae (SNe Ia). The advantages of a photometric sample include larger number of events classified as type Ia, larger redshift coverage and no need for spectroscopic observations. ... First, a subtracted image stack treatment was developed to reduce the number of non SN-like events using morphological component analysis. ... Second, a new classification using photometric SN redshifts is introduced. ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

... Contemporary State ol SETI Problem In Russia . ... Presently the scientific and technological civilization on Earth possesses only one method of searching for extraterrestrial civilizations in outer space - the method of remote observation by scanning, optical and radio data from the surrounding space and by trying to detect and. recognize possibly intelligent signals. ... Theoretical Foundations ot the Contact oi Intelligent System. ... Intermediary Languages for the Contact ot Intelligent Systems....

Status of the RadioAstron project development . The engineering model of the Space Radio Telescope (SRT) was assembled in Lavochkin Association (LA) in the configuration consisting of 10-m parabolic radio astronomical antenna made of carbon-fiber, F ocal and Device cabins of the scientific payload and on-board and ground complex of high data rate up-down radio link (VIRK). ... Then,radio astronomical tests were conducted using real radio sources. ... Space Radio Telescope . ... Data Processing . ...

... Torgashin Kotel'nilov Institute of Radio Engineering and Electronics, Russian Academy of Science, Mokhovaya 11, 125009, Moscow, Russia A Superconducting Integrated Receiver (SIR) [1, 2] was proposed more than 10 years ago and has since then been developed for practical applications [3]. ... In particular we have developed integrated receiver for novel balloon borne instrument TELIS (TErahertz and submillimeter LImb Sounder) [6, 7]. ... The SIR for TELIS covers frequency range 450 -650 GHz. ...

... 400mm f/2.8 Nikor lens: images the sky on the entrance slit. ... The optical system maintains image quality along the slit length so that each row of the image is a spectrum of that spatially selected region of the sky. 180mm f/2.8 Nikor lens: collimates the light from the slit. ... The auxiliary optical platform on WISPI now accomodates a short focal lens and a guiding/imaging video system that may use sub-pixel corrections to provide feedback to the tracking drive motors. ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

... IAA VLBI Analysis Center . ... First IAA SLR EOP submission to IERS Annual Report . ... Beginning of operational processing of SLR observations . ... We use several program packages for analysis mostly developed at the IAA: GROSS for processing of the SLR observations and analysis of EOP and coordinates time series, OCCAM/GROSS for computation of EOP, station coordinates, and troposphere parameters time series from the VLBI observations, GRAPE for processing of GPS observations. ...

... TV research areas include design and building application CCD camera for investigation of nightglow emissions, investigation parameters of CCD chip and camera, calibration camera. ... Lapchuk V.P., Zhuravkov O.V., Ivchenko V.M. CAMERA ELECTRONICS FOR THE CCD FOURIER SPECTROMETER. ... CCD table . ... Photomultiplier tube housings, intensified CCD cameras, Monochromators, optical choppers, photometers, fiber optics ,... http://www.hpk.co.jp/ - HAMAMATSU Photonics Photomultiplier tube and more . ...

... Classified as a persistent source, on 2004 it showed a quiescent-like state. ... We present the long term temporal behaviour of 1E 1740.7­2942 observed by INTEGRAL and RXTE in 2004 and 2005, as well as preliminary results on possible spectral transitions. ... 1E 1740.7­2942 RXTE/PCA ligh curve based on short pointings in the energy range 6­12 keV. given. ... Our 2005 simultaneous INTEGRAL and RXTE observations were performed in high flux levels; as expected 1E 1740.7­2942 was in its Low/Hard state. ...

Hide Zen home . ... SAI RVO . SAI CAS . ... We present the results of the development of Sternberg Astronomical Institute Catalog Access Services (SAI CAS) project - the first and the only project in Russia, which provides online access to the major astronomical catalogues and different services on top of them. ... SAI CAS is an open-source implementation of the general Catalogue access service (influenced by SDSS CAS & CASjobs project), based on original algorithms and open-source software. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

... These are plugged into plug-plate holes drilled at the predicted locations of suitable guide stars in the field of view. ... In particular, any departure from the ideal elastic curve from the tubing anchor point to the hole appears to affect the rotation angle of the plug. ... No structure of the residual plug angle appeared significant when these data were examined in 3-D. Figure 3: The plug rotation angle has a standard deviation of 54њ (201њ peak-valley). ... How large can the rotation error be? ...

The following page provides access to several SVM codes developed by us. ... Several our codes realizing some other exact and approximate methods are also available. The codes are provided by rather small (sorry) comments and test run results. ... Another page contains links to other collections of light scattering software (under construction). Our overview of the ranges of applicability of different codes is under preparation. ... Created by V.I. Last modified: 10/05/03, V.I. ...