... Flats : Properly exposed flats over all echelle orders require a two-step process. Flats are taken both with and without a CuSO4 (aka "blue") filter in the beam. ... Suggested exposures are 7 seconds ("red"; no filter) and 240 seconds ("blue", CuSO4 filter) yielding S/N values of ~480. The filter for "blue" flats is listed as "blue" in the Config window in Echelle control under Remark. ... Exposure times for objects can be derived from the following plot: . ...

Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

Computer Ephemeris. Reduction quantities for Sidereal time. Explanations. Each row contains for the date specified at 0 h of Time Dynamical Sidereal: . sidereal julian day, . interval from date to mean epoch T m expressed in julian years, . reduction quantities A+A', B+B', C, D, (all in seconds of arc), E (in 0.0001s), A', B' (in 0.001). The same table, but for moments, expressed in Dynamical Time is to be found on 'Reduction. Dynamical time.' page. ...

. The amount of CPU time used by this process.

... I got six, that's all there is. Six time one is six; one times six. ... I put mine with his, and we got twelve. Six time two is twelve; two times six. ... Six time three is eighteen; three times six. ... I got six red hens, they laid five eggs each. ... Oh, six times six is 36; six times six. ... Put 'em in one bag, that's 42.> ... Nine hungry men had six dollars each. ... Six time nine is 54; nine times six. ... Six time twelve is 72; twelve times six. ... Six times one is six; one times six. ...

Extended time series of Solar Activity Indices (ESAI) is database including observational, synthetic and simulated sets to study Solar magnetic field variations and their influence on the Earth. ESAI extend the ordinary lengths of some traditional indices of solar activity: sunspot areas, Wolf numbers (equatorial component of magnetic field of the Sun), polar faculae numbers (polar component), mean latitudes, N-S asymmetry of hemispheres (location of activity). Series . ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Publications of the ASP (PASP) . ... Mercury's Time to "Shine" . ... As seen from Earth, three celestial bodies sometimes pass in front of the Sun: the Moon, Venus, and Mercury. And in November, it is Mercury?s turn. ... Transits of Venus are very rare, indeed?none occurred in the entire 20th century?but Mercury transits the Sun about thirteen times every century. ... publications . ...

... Telescopes . ... The 1-m telescope ZEISS-1000 time allocation committee . ... 1-m telescope time request ----------------------------------------------------------------------- Request ...... 2000 1d half year 1m telescope Received.. ... Results of observations obtained by applicants at the 1-m telescope on other programs over the last years (publications, reports).. ... Deadline for submitting Z-1000 time requests of the 6-m Telescope Program Committee outside applications - March, 1 September, 10....

Inscrivez-vous –Љ la newsletter | ... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit–їs . des reportages . ... Accueil Time-lapse : Recr–їez le mouvement du ciel en vid–їo . ... Nous vous expliquons pas –Љ pas comment r–їaliser –Љ partir d'une s–їrie de photos ces petites animations appel–їes time-lapses (voir l'article вАЬacc–їl–їr–ївАЭ sur wikipedia). ... Si vous souhaitez partager vos vid–їos et –їchanger sur le sujet, rendez-vous sur le forum de Ciel et Espace . ...

... Does the time it takes different methods to create all the elements coincide with the universeт??s accepted age? ... Illinois Urbana-Champaign) Different kinds of stars create elements at different rates, all of which are consistent with the age of the universe. Get instant access to subscriber content on Astronomy.com! ... Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below. ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... A few months ago, I wrote about how we know the Earth is round . ... As the Earth rotates, different parts of it face the Sun. ... A funny thing happens if you move west across a single time zone: the Sun will set at a different time at different locations! ... The Earth is a rotating ball, and people that live on different longitudes see the sun set at different times. ...

... G. A Leikin, A. N. Sanovich. Sternberg Astronomical Institute, Moscow 119899, Russia. Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... G. A. Leikin and A. N. Sanovich, Sternberg State Astronomical Institute, Moscow State University, . ... Brown University - Vernadsky Institute Microsymposium 38, October 27-29, 2003, Moscow, Russia . ... Sternberg State Astronomical Institute, Moscow, State University, 119992, Moscow, Universitetskij prosp. ...

... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...

... A star party is a gathering of amateur astronomers who set up their telescopes and observe the dynamic night sky. ... Star parties are best scheduled during first quarter and waxing gibbous Moon. During full moon, the moon is so bright it obscures a view of other celestial objects and even the Moon is best viewed when NOT full. ... We will consult local weather forecasters and make a decision by 2:00p on the day of the star party. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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. ...

... Phys., 45, 409-419 10.02.2010 , . PLHR: o 50 / 60 / 100 / 120 o MLR: o 50 / 60 / 100 / 120 o o , - PorojДrvi 17/11/1993 Total power -5 dB 1,8 -15 1,7 -25 1,6 14.09 14.11 Time(UT) -35 14.13 Frequency (kHz) 4,2 4,1 4,0 07.30 -30 -40 07.45 Time(UT) 07.00 10.02.2010 Frequency (kHz) PorojДrvi 25/01/1993 Total power 4,3 -20 dB , . ... 10.02.2010 , . ... f1 < < fn < fn+ 1 20 ms 128 Frequency (kHz) 1,8 1,8 Frequency (kHz) 4 dB 0 -20 1,7 1,7 1,6 0 10.02.2010 30 Time(sec) 60 1,6 -40 0 0,3 Time(sec) 0,6 , . ...

... TIME[4]+1)." TIME[5]+1900); $time = @TIME[2]." ... TIME [0]; $query; if($ENV{'REQUEST_METHOD'} eq 'GET'){ $query = $ENV{'QUERY_STRING'}; }elsif($ENV{'REQUEST_METHOD'} eq 'POST'){ sysread ... /=/,$fvalues[$i],2); $name= urldecode($name); $val= urldecode($val); $field{$name} = $val; } } $bib_file=$bib_file1; if( defined $field{'db'}){ $bib_file=$bib_file1 if ($field{'db'} eq 1 ); $bib_file=$bib_file2 if ($field{'db'} eq 2 ) ...

... AGU Fall Meeting, 15-19 December 2008, San Francisco, poster . Zotov L., Shum C.K, Singular spectral analysis of GRACE observations Climate, Statistics, and Satellites, a symposium in honor of Jerry North , June 8-10, 2009, Presidential Conference Center, Texas A University, talk . 2009 Fulbright Visiting Scholar Conference, 19-21 April 2009, Washington DC . ... Zotov L., Shum C.K., Singular spectrum analysis of GRACE observations, 9th Gamow summer school 17-23 August, 2009, Odessa, Ukraine . ...

... EXPERIMENTS AND RESEARCHES . ... The first contract research activity to be performed on the ISS Russian Segment is ESA-provided Global Time System experiment. Currently it became necessary to receive high-precision time signals by various users, i.e. Institutes of Nuclear Physics. ... The experiment tests time signal and data signal receiving conditions on the ground by dedicated receivers. ... GTS equipment . ... Testing of time signal generation conditions using special ground receivers. ...