AMPLITUDE AND PHASE VARIATIONS OF THE CHANDLER WOBBLE FROM 164-YR POLAR MOTION SERIES Z.M. MALKIN, N.O.MILLER Central Astronomical Observatory at Pulkovo of RAS Pulkovskoe Ch. ... The CW amplitude and phase variations were examined by means of several methods which yield very similar results. ... To extract the CW amplitude and phase variations from the filtered PM series two different techniques were used. ... The CW amplitude variations are shown in Fig. 1 for two methods used. ...

Infrared Detector Array Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Atmospheric Database Links . Linux Links . ... Rockwell Science Center home page. ... Santa Barbara Research Center home page. ... CCD-World home page. ... SDSU home page. ... EPICS home page. ... Optics Society of America . ... Linux on Laptops ( local site and US home page ). ... Instrumentation Links * Gemini Project Links * Other IR Instruments ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

... Note on Filters: . ... NGC 3351 is a mostly face-on late type spiral galaxy. It is marked by a bar like feature in its central regions and a strong inner ring of star formation. ... The galaxy was imaged through the A1,B1 and B5 filters over a total exposure time of 1936 seconds. ... The galaxy was imaged through the A1 filter for 450 seconds and the B1 filter for 1084 seconds. ... The galaxy was imaged through the A1 and V1 filters over a total exposure time of 1200 seconds. ...

. This wide-angle image (spanning 320 miles [510 km]) shows different compositions in the material on MercuryтАЩs surface. The camera used three of the 11 filters available to take this image. (The wide-angle camera can image in 11 filters across the range of visible to near-infrared radiation.) This image combines data taken at 1,000 nanometers (red), 750nm (green), and 430nm (blue) to create a color image. NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

... 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., ...

This library currently provides subroutines used to transform theoretical spectra to intermediate and broad-band photometric indices. ... Typical tasks are the response functions and transmission curves for various filters, mirrors and photomultiplier windows. ... The response is zero outside the given wavelength range. ... real . input . Wavelength in nanometres . PHOT_1P21 . ... PHOT_AIR . ... PHOT_ALUM . ... Inputs must be valid as for PHOT_FILTER, PHOT_AIR, PHOT_ALUM and PHOT_1P21. ...

. unfiltered . GGM02C model . PC 1 . PC 2+3 . PC 2 . PC 3 . PC 4 . PC 5 . Sum of nine first PCs 2-10 . Difference between the initial signal and ten first PCs 1-10 . PC 1 . PC 2+3 . PC 2 . PC 3 . PC 4 . PC 5 . Sum of nine first PCs 2-10 . Difference between the initial signal and ten first PCs 1-10 . PC 1 . PC 2+3 . PC 2 . PC 3 . PC 4 . PC 5 . Sum of nine first PCs 2-10 . Difference between the initial signal and ten first PCs 1-10 .

... Tiny Tim has been used for generating Hubble Space Telescope ( HST ) point-spread functions (PSFs) for deconvolution, algorithm testing, proposal planning, and optical studies. ... Tiny Tim is a stand-alone program for simulating HST PSFs as viewed with the on-board imaging cameras (WF/PC-1, WFPC2, FOC, COSTAR/FOC). ... The measured aberrations for FOC f/96, WF/PC-1 PC6, WFPC2, and COSTAR/FOC are used by Tiny Tim . ... Figure: FOC f/96 observed and Tiny Tim model PSFs (pre-COSTAR) at 253 nm. ...

. NEVER look directly at the sun without a proper solar filter! . We have lots of different equipment available for use. Here you see our 6" solar filters. Our club always recommends that you use a FULL APERTURE solar filter. In the picture you will notice a TYPE 2 filter for VISUAL use and a TYPE 3 filter for PHOTOGRAPHIC use. Here is an easy way to remember which type solar filter you need for VISUAL OBSERVING: You have 2 EYES so you need a TYPE 2 filter!! .

... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ... The spectrum of the optical transient GRB090726 with identified lines, obtained with the BTA 1.54 hours after the burst. ...

... В теме В разделе По форуму . ... Астрофорум - астрономический портал ? ... Астрономическое оборудование и аксессуары (Модераторы: zlyden , Denk36 ) ? Baader Solar Continuum Filter 1.25" . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. ... Приобрел сегодня фильтр Baader Solar Continuum, этот фильтр упоминался не так давно в теме . ... Снимал на CMOS камеру 1.3 Мп. без IR фильтра. ... Правое фото снято через фильтр. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... Despite new observation methods provided by radar and satellite instrumentation , optical measurements are still important when studying auroras . ... Because of the monochromatic nature of the auroral light, photomultiplier tubes with very narrow band filters were used in the measurements. ... The spectra of the background emissions from atmospheric impurities (clouds, ice crystals, etc.) is rather continuous, and measurements just outside the auroral emission lines are valid for the line itself. ...

... Оборудование (Модераторы: LifeIsGood , Hornet ) > . Baader Protuberanz filter или фотографирование Солнца . ... Оффлайн . ... Благодарностей: 245 . ... 05 Декабрь 2009, 14:16:39 ? Где можно почитать о этом фильтре Baader Protuberanz filter с шириной пропускания 1.5A на 1.25". поиск не увенчался успехом.. ... Цитата: MAKsutik от 05 Декабрь 2009, 14:16:39 Где можно почитать о этом фильтре Baader Protuberanz filter с шириной пропускания 1.5A на 1.25". поиск не увенчался успехом.. ...

... Original Xiaomi Mi Position Activated Carbon Filter . Brand: Xiaomi . ... Package Contents: 1 x Original Xiaomi Mi Position Activated Carbon Filter . Цвет: узор черный/экрю . ... Цвет: серебристый . ... Цвет: серый . ... Пол: Женский . ... Цвет: Синий . ... Пол: Для девочки . ... Джинсовая куртка темно-синего цвета марки MAYORAL для девочек. ... Цвет: белый . ... Цвет: Черный . ... Пол: Мужской . ...

Eyepieces Forum Message . Forums: . ... Re:Suggestions For Light Pollution Filters Wanted . ... Why worry about light pollution right now, why not just go out and use the telescope, sure in time a light pollution filter might help but why spend more right away, go see what you can see and enjoy the views. ... my astronomy a.t.m. site . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) MASSIVE PHOTOMETRY OF LOW-ALTITUDE ARTIFICIAL SATELLITES ON MINI-MEGATORTORA S. Karpov, 1, 3 E. Katkova,2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Davydov5 E. Ivanov,2 A. Perkov,2 V. Sasyuk3 RESUMEN Favor de prop orcionar un resumen en espanol. ... The nine-channel Mini-MegaTORTORA (MMT-9) optical widefield monitoring system with high temporal resolution system is in operation since June 2014. ...

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...