... First of all, you can obtain a map of the final coordinates of your objects and guide stars by using the command: PLOT/OPTOPUS [table] [label] [EW_flag] , . where [table] is the table output by REFRACTION/OPTOPUS . ... In order to avoid object misidentifications at a later stage, and for a cross identification between object identifiers and hole numbers, it is recommended to bring a printout of the table output created by the command REFRACTION/OPTOPUS to the telescope. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... LX70 Series . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... LightBridge Series . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . ... les plus belles images de l'Univers d–їcrypt–їes pour vous . ... Accueil –А observer : V–їnus, Spica et des –їtoiles filantes . ... Surveillez aussi les –їtoiles filantes . Lorsque le ciel devient sombre, il se peut que quelques m–їt–їores z–Rbrent le ciel, car c'est actuellement le pic d'activit–ї de l'essaim d'–їtoiles filantes des Aurigides . ... 08/08/2013 - Les Nuits des –їtoiles 2013 : cвАЩest parti ! ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

Next: Phase Dispersion Minimization Up: Period Analysis Previous: Period Analysis . Period determination for short period stars is performed by observing target fields several times per night for several consecutive, or closely spaced, nights. ... First the individual frames are debiased and flat--fielded, then fluxes within a four arcsecond aperture around each star (targets and randomly chosen background stars) are extracted. ... Phase Dispersion Minimization . ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

EPIC/MOS Diagnostic images analysis Philippe Ferrando, Michel Lortholary - CEA/SAp · The figure sh ows 100 frames of data taken in threshold mode (threshold at ~ 1.5 keV). Cosmic-ray tracks are clearly visible. ... Radiation meeting - Vilspa Nov.30, 2000 Philippe Ferrando CEA /SAp Flux and caracteristics of tracks (II) Deposited spectrum · By adding all the amplitudes of pixels in a track, a lower limit of the energy measured per track is obtained. ... The average is 73 sterilized pixels / track. ...

... Art Swedlow, Dave Siegrist, Eileen Myers, Nina Craven and I were able to see and image the comet on the top section of a Maynard parking garage. It was invisible in my 10 power x 25mm binoculars but was clearly seen with a pair of 8-power x 50mm ones. 2.5-second image, EF 24-105mm, f/4L at 105mm f/5, Unmodified Canon T1i, ISO 800, Tripod, processed with Adobe Photoshop. 19:47 hrs EDT (23:47 UT), 13 March 2013, Maynard, MA Parking Garage. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... This year's eclipse is unique in duration. ... Although, at the present time, there are 6 solar observatories belonging to leading space agencies in orbit around the Earth, the eclipse of 22 July, 2009, will only be seen by two of them: the Russian CORONAS-PHOTON satellite equipped with TESIS telescopes and Japan's HINODE satellite fitted with an XRT space telescope. ... TESIS will be the first of the two devices (and the very first on Earth) to witness the solar eclipse. ...

... We propose to use observations of the time delay of pulses from pulsars to detect lensing objects located close to the line of the sight, in order to study the distribution of dark matter in our Galaxy. ... Time delay . ... Application to the pulsar B0525+21 . ... Gravitational lensing and time delay of pulsar signal in the gravitational field of a mass are General Relativity effects which may be used as a tool to detect the observational parameters of dark matter in our Galaxy. ...

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

Pulkovo NEO Page . ... NEA Accuracy Estimation . ... The estimation of accuracy of the current CCD observations of asteroids and comets is constantly performed at Pulkovo Observatory. ... The (O-C) values, so called "Observed" minus "Calculated" positions, characterize numerically the observations of any observatory, both professional and amateur, during a short period (one or several close nights). ... So the (O-C) values for these objects nearly entirely define the errors of observations. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

Subatomic resolution on Cu(014)-O . 3nm x 3nm STM image of the Cu(014)-O 0.5ML surface measured with MnNi tip. ... This result has been discussed in Phys. Rev. Letters, 98, 206101 (2007) (A.N.Chaika, V.N.Semenov, S.S.Nazin, S.I.Bozhko, S. Murphy, K. Radican, I.V.Shvets, "Atomic Row Doubling in the STM Images of Cu(014)-O Obtained with MnNi Tips"). Image courtesy of A.Chaika. The image was measured in constant current mode using RT STM GPI-300. Copyright ИФТТ РАН, ЛСПП, 2006-2007 . ...

General Forum Message . ... Antigravitational Non-local Spacetime Experiment . ... Hence it can be known that in the antigravitational field the spacetime location of an object is varying. ... In the experiments described in Section 2 below, the scraps serve as the observers. ... The scraps used in Experiment 2 are two other scraps. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Supernovae: and How to Observe Them (Astronomers' Observing Guides) . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. Зимние созвездия (поиск и описание) .. ...

... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

... WinTICS-24 Version 2.0 is a telescope control system interface and observing assistant, that provides the ability to control a telescope and guide-acquire module, along with a suite of utilities to assist observers. ... WinTICS is an evolution TICS-24, an integrated telescope control system (TCS) written by Hawkins & Ratcliff (1993) for the Macintosh in HyperCard. ... On the right side of the main WinTICS window are controls for movement and initialization of the telescope. ...