... The March 20 total solar eclipse was visible over the North Atlantic and Arctic Oceans. ... Solar eclipses are of interest for radio astronomy, as they make it possible to observe individual details on the solar disc (spots, filaments, flocculi, etc.) ... On March 20, 2015 the integrated observations of the solar eclipse were carried out at the RATAN-600 radio telescope at 70 wavelengths simultaneously in the range of 1.65cm to 10cm with the 1% frequency resolution. ...

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Next: Accretion Disks with Up: StarsStellar Populations, Previous: Spectroscopic Analysis of . ... We present and discuss spatially resolved spectra of the accretion disk and the gas stream region as a function of distance from disk center, the spectrum of the uneclipsed light, and the radial temperature distribution in the ultraviolet. Keywords: Accretion disks, Cataclysmic variables . ... In this paper we report on the HST spectral mapping of the nova-like UX UMa. ...

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• STScI Preprint #1204
• The HST-GHRS Spectrum of the Old Nova V603 Aql
• Eclipse Decomposition of Time-Resolved UBVRI and HST Spectra of the Dwarf Nova

... We will consider the rms, (K), for observations with a receiver of system temperature, T , frequency resolution, per polarization, and total integration time per observing cycle, . ... For ``in-band'' frequency switching, the line under investigation is always in the observing band. ... Position Switching or ``Out-of-Band'' Frequency Switching: Here the line is only observed for one half of the time, with noise being present all of the time. ...

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• Example Observing Projects
• CIMA Auto-Observing

Next: Radial velocity of the Up: Optical spectrum of IRAS04296 Previous: Observations and spectra reduction . ... However, molecular emission features are only very rarely observed in the optical spectra of PPNe. ... On the other hand, it is well known that cometary nuclei spectra show prominent Swan band emission. In both spectra of IRAS04296 we have discovered strong emission in the (0;0) and (0;1) bands of the Swan system of the molecule. ... Now consider the case of IRAS04296. ...

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• Observations and spectra reduction
• GRB follow-up team
• Fabry-Perot Interferometer: Gallery Old

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Lightcurve of HW Vir from images obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory . The blue triangles show the difference between two stars whose brightness is constant. ... This shows the value of the Faulkes Telescopes in the follow-up observations of eclipsing binaries with the aim to detect and characterise additional circumbinary companions. ...

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• Solar Eclipse Observed Armagh Observatory
• Armagh Observatory
• Eclipse Experiment

... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

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• The Radiopulsar PSRB1259-63 - a Probe in the Stellar Wind Plasma
• Introduction

We present the results of our observations of the white-light corona in polarized light performed at Criciuma eclipse, Brazil. During the observation of 3.11.94 we have made five couple of pictures of the solar corona in polarization light. ... Koutchmy S., Molodensky M., Starkova L., Ershov A., Matsuura O .: ... Molodensky M., Starkova L., Koutchmy S., Ershov A .: ... Koutchmy S., Molodensky M.M., Starkova L.I . ... Koutchmy S., Molodensky M.M., Starkova L.I. Koutvitsky V. and Ershov A . ...

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• TOTAL SOLAR ECLIPSE OF MARCH 9, 1997

INTEGRAL observations of SS433 : new results Anatol Cherepashchuk Sternberg Astronomical Institute, Moscow University, Russia In collaboration with: Rashid Sunyaev ... Eleonora Antokhina, Nikolai Shakura, Darja Kosenko, Elena Seifina,Sergey Molkov (IKI) 1 Overview · Introduction · · · · Observations Analysis of hard X-ray spectra Analysis of hard X-ray eclipses Discussion and conclusions December 26, 2007 ...

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• http://hea.iki.rssi.ru/conf/hea2007/presentations.orig/26.12.07/chernyakova.pdf
• Fast search through RTT150 data archive

RESULTS OF THE PROMINENCE OBSERVATIONS AT MICROWAVES DURING THE MAXIMAL PHASE OF THE TOTAL SOLAR ECLIPSE OF MARCH 2006 O.A. Golub china, V.M. Bogo d, A.N. Korzhavin, N.N. Bursov, S. Kh. Tokhchukova SPb branch of SAO RAS, St.Petersburg, Russia oag@OG4466.spb.edu Results of the prominence radio emission study according to observations of the solar eclipse on 2006 March 29 with the Northern sector and with the Southern sector with the Flat mirror of RATAN-600 are discussed. ...

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• Optical spectroscopy
• A CS and NH3 Survey
• The Spectrophotometrical complex in Nasmyth-1 focus

These observations are aimed at fully charactering FORS1 photometric system (UBVRI zero-points, color-terms and extinction coefficients) for the Tektronix 2048x2048 pixel CCD (24µm px) . To this aim, the two Landolt/Stetson photometric fields SA95 and SA101 will be observed on a number of epochs and at different airmasses during February and March 2007. ... SA101 . ... OBs for SA101 have to be observed during evenigh twilight (exceptions are expected for the second half of March) . ...

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• ESO - ESO sky correction tools
• ESO - UVES
• ESO - Guaranteed Time Observations

... the time of observation . ... Observing the Changing Position of the Sun To Establish Cardinal Directions . ... Observations of the Sun's apparent movement across the sky and its pattern of rising and setting in the east and west horizon helped to establish the cardinal directions. ... The final stage of the Sun's return was marked by the observation that the Sun had reached its highest altitude when the full width of your mitted hand could fill the gap between the Sun and the horizon. ...

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• ASP: Eclipse Watching: Making a Solar Filter
• ASP: Guest Observer
• ASP: Munching on Lunar Cheese

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

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• IBIS - Flat Fielding
• APOD: August 30, 1999 - Looking Back on an Eclipsed Earth
• The Arcetri Spectral Code - E.Landi and M.Landini (2001)

Peremennye Zvezdy", . ... GSC 4232-02515, NSVS 3147658, NSVS 3174760 . ... 14.2-14.9 (R, NSVS); . ... During observations of a secondary eclipse of GSC 04232-02830 (Goranskij et al., 2005) on August 8, 2007, we identified GSC 4232-02515 as a W UMa eclipsing binary. ... VAST software was used for aperture photometry. ... This method produces a light curve with an arbitrary zero point. ... Light Curve . Light curve of GSC 4232-02515 in NSVS magnitude scale. ... gsc423202515_kadar_nsvs.dat . ...

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• Eclipsed Moon in Infrared
• XWare > APOD

The potential of masers to act as probes of their environment has long been recognised, but to date has proven very difficult to realise. ... 2001, Sutton et al. 2001). Masers are variable on timescales of weeks to months and one of the major limitations in previous attempts at multi-transition analysis has been the uncertainties introduced by combining observations made over many years using a variety of instruments with differing spectral and spatial resolutions and polarisation properties. ...

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• lbaops:lbajul2011:v255o [ATNF VLBI Wiki]
• Reducing 3-mm ATCA observations
• lbaops:lbaapr2011:v255n [ATNF VLBI Wiki]

... April 3, 1996 . A Lucky Lunar Eclipse . ... Explanation: Tonight's full moon would normally washout the spectacle of Comet Hyakutake's lovely tail , even for those far from light polluted skies. ... Lunar eclipses are caused when the Moon passes through the Earth's shadow . ... Latest Comet Hyakutake images: APOD Hyakutake Archive , JPL , Fayetteville Observer-Times , NASA's Night of the Comet , ICSTARS , Jerry Lodriguss , ScienceWeb , Crni Vrh Obs. ... Archive | ... About APOD | ...

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• APOD: January 10, 1997 - Eclipsed Moon in Infrared
• APOD: 2001 September 15 - Eclipsed Moon in Infrared
• APOD: 2003 November 8 - Eclipsed Moon in Infrared

... ARCSAT ID NUMBER: AS09 DESCRIPTIVE TITLE: Monitoring H-alpha Variability in Be Stars in Young Clusters PI: Steven Souza (Williams College) OBSERVER(S): Steven Souza UNCERTIFIED/UNTRAINED OBSERVERS: summer research students Hallee Wong (Williams College '18), Aylin Garcia Soto (Wesleyan University '18) COLLABORATORS: none CONTACT INFORMATION: Steven Souza; ssouza@williams.edu; 413-441-9892 TIME REQUESTED: My request is for one week total during Q3. ...

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• http://www.apo.nmsu.edu/Telescopes/ARCSAT/ObsSchedules/arcsat_apr2016/AS04.html
• http://www.apo.nmsu.edu/Telescopes/ARCSAT/ObsSchedules/arcsat_jan2016/AS04.html
• http://www.apo.nmsu.edu/Telescopes/ARCSAT/ObsSchedules/arcsat_oct2015/AS08.html

... Gladysz, S., Redfern, M., & Jones, B. W. 2003, in ASP Conf. ... We present the results of comparison between characteristics of highly atypical shadow bands recorded during total solar eclipse of 4 December 2002 in Botswana and theory of Codona. ... application of a FFT algorithm to a single image in order to find the shape of power spectral density function, psd(k), defined by Kay and Marple (1981), as predicted by Codona, and search for shadow bands' characteristic spatial frequencies. ...

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• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• Using Massively Parallel Processing of a NLTE Spectrum Synthetic Code and an
• A Distributed System for ``Phase II'' Proposal Preparation

... 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. ...

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• Project's diary
• The X-ray Solar Eclipse
• The culmination of the solar eclipse coincided with the strongest magnetic

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observing springtime deep-sky objects with a large telescope . ... How to observe a lunar eclipse . ... Astronomy magazine Senior Editor Michael E. Bakich explains how to watch a lunar eclipse. ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• What determines the length of totality during a solar eclipse? | Astronomy.com
• Does the time it takes different methods to create all the elements coincide
• Why do some stars appear to flash a variety of different colors when you look

Natural Satellites Service. ... Mutual occultations and eclipses . of the major satellites of Uranus . ... We present the ephemerides and circumstances of the mutual occultations and eclipses of the major Uranian satellites in 2006-2010. ... In 2006-2010 about 190 mutual occultations and eclipses will occur. ... The ephemerides of the mutual occultations and eclipses of the major satellites of Uranus in 2006-2010 are presented in four tables according to four periods of visibility of Uranus. ...

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• Photos from the latest lunar eclipse (march 2007)
• jg0026
• jg0036