... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Information & tools for observers . Applying for observing time . ... Observing schedules . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Try and find the Moon in the sky once a day over a month*. ... Lunar observations . ... Wildflowers Home . Activities . ...

Discussions about the observing strategy for the HDF-S focussed primarily on the questions: . What filters/gratings to use for each instrument ? What exposure time to use for each filter/grating ? ... Different areas of the Version 1 output image correspond to variable amounts of exposure time, due to the relatively large pointing shifts necessitated by the multi-instrument observing strategy. ... WFPC-2 Filters, exposure times and limiting AB magnitudes for Version 1 images . Filter . ...

Next: Bias correction of visibilities Up: Discussion of reduction issues Previous: Discussion of reduction issues Contents . With the advent of the 6-way NPOI configuration in which the observer can switch in and out stations, the number of participating stations can change throughout the night. This is equivalent to VLBI, where different sub-arrays are observing. ... It is handled using a field in the scan table ( scantable.station ), which, for every scan, indicates which stations were used. ...

... In Figures 2 and 3 we show the 6m telescope spectra of blue compact galaxies HS 1013+3809 and HS 1442+4250, in which typical high excitation HII-region narrow emission lines are seen. ... for red part of HS 1442+4250. ... This correction = 354 km s -1 was calculated for HS 1013+3809 and = 202 km s -1 for HS 1442+4250. ... While HS 1013+3809 looks very symmetric and very compact, with intense star formation burst taking place in its very center, HS 1442+4250 is well elongated, resembling edge-on disk...

... 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. ...

MINUTES of the RadioAstron Teleconference on December 09, 2009 N. Kardashev chaired the teleconference. ... V. Andreyanov presented information about tests at LA. Integration tests of the flight SRT are being continued. ... SRT was tested together with the Flight model of the high data rate radio communication system (VIRK). ... S.Likhachev provided information on activities in development and tests of Russian data recorder and correlator. ... ASC software correlator was used for the corealtion. ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Observe Every Photon's Size Experiment . ... Post Message | ... Observe every photon's size experiment . 1.The slow process of the formation of the light diffraction pattern experiment . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

... News Latest News News Archive Newsletter Quarterly Status Report . ... Calibration strategy, status and factors limiting success: Chandra . ... Calibration strategy, status and factors limiting success: XMM-Newton . ... Calibration strategy, status and factors limiting success: Swift . ... Calibration strategy, status and factors limiting success: RXTE . ... Calibration strategy, status and factors limiting success: Suzaku . ... Calibration strategy, status and factors limiting success: Integral . ...

... Astrophysics Group . ... Meetings . Past meetings . THE@INT Science Discussion Meeting: 6th October 2014, RAS, London . ... We will be holding an afternoon (2pm start) meeting on 6th€аOctober 2014€аto present and discuss the prospects of a new high resolution spectrograph installed on the Isaac Newton Telescope.€а This meeting is in light of the recent call for new instrument ideas ( http://www.ing.iac.es/about-ING/int2014.html ) put forward by the ING group in La Palma. ...

... Reception/Dinner (poolside) . ... Wake-me-up Coffee & Conference Registration (L.C.) . ... 0930 - 1030 . Science Highlights from the Arecibo & Green Bank Telescopes - C. Salter PDF & J. Lockman PDF . 1030 - 1100 . Coffee Break (V.C.) . ... Tracing the Signal down the Telescope - R. Maddalena PPTX . ... The Hands-On Projects - Organization and Logistics . 1730 - 1900 . Dinner with Hands-on teams planning strategy (poolside) . 1900 - 2100 . ... 1900 - 0000 . ... 0730 - 0830 . ...

11 august 2014/Monday: Arriving, Registration . ... The variation of solar flare coronal X-ray source spatial properties. ... Melnikov V.F., Charikov Yu.E., Kudriavtsev I.V. Directivity of X-ray and gamma-ray emission from different parts of flaring magnetic loops. ... E., Melnikov V.F. Angular characteristics of polarization degree of hard X-ray emission from different parts of flaring magnetic loops. ... The thick target model and analytical calculations of the hard X-ray emission from solar flares. ...

... Recent Topics . ... MAO main . ... Fw: ASTRONET: Task 5.4 - observing schools . ... Subject: Re: ASTRONET: Task 5.4 - observing schools . ... with the organization and carrying out observing schools. ... second half of September, and which will be funded by the training and . ... intended for master and starting PhD students. ... actions on observing schools, providing access for students, Master . ... observing schools for master students. ... in form of observing schools for pre-PhD students. ...

... The only criterion used for inclusion of a star in the monitoring program was that the star had to be an X--ray source. ... He also found a similar relation between rotation period and X--ray flux. ... Thus, one is more likely to find periods for either more massive or more active stars. ... Because of this, the data are not very sensitive to periods longer than 11 days. ... Taking these biases as a whole, some of the higher FAP periods listed as just below one day may be just above one day. ...

... As the SN activity in the first generation stellar population must be small at present, the net SN rate in the vicinity of the Sun is approximately proportional to the local density of stars of second generation (or to the star formation rate, which is the same), especially for SN II and SN Ib. If a -like star formation of the first generation stars took place, a hump on the observed - showing the relative fraction of the first generation stars should be observed. ...

Peremennye Zvezdy ( Variable Stars ) 32 , No. ... We report on a new episode of decretion disk formation in the IGR J06074+2205 system. ... From a study of three HeI lines, the rotational velocity of the star was determined as km/s. After five years of spectroscopic monitoring of IGR J06074+2205 (Reig et al. 2010), a reversion from emission to absorption of the H line and hence disappearance of the equatorial disk was reported. ... Reig P., 2011, Astrophys.& ...

... The Proposal Handling and Reporting System (PHRS) is a software system aimed at supporting ESO's Observing Programme Committee (OPC) during the entire review process of the Observing Time Proposals. ... PHRS was already successfully employed twice (for Periods 54 and 55), handling over 250 (peak) proposal submissions per day. ... The Proposal Handling and Reporting System (PHRS) at ESO is a software system aimed at tackling this problem and supporting the OPC. ... Valid proposals are peer-reviewed. ...

... Observing . ... Home Education Workshops at Adorama Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama €аFor the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... The following charts/text are intended as tools for monitoring the Type Ia supernovae ( SNe ) event visually or photographically (utilizing telescope equipped CCD equipment).The files include: A replication of The Type Ia SNe , V- magnitude (with data point checks from other cited references)and color index (B-V) templete (to indicate a general color-related trend of the type Ia ... I believe this might help alleviate some of the problems involving the making of acceptable amateur light curves...

Next: Bibliography Up: Coronal Hole Diagnostics out Previous: Observations and Data Reduction . Figure: Variation of the electron density above the polar coronal hole. ... In Fig. 2, we plot the electron density as derived from Si VIII , coupled with N e from UVCS (Kohl et al. 1998) and LASCO (Lamy et al. ... Guhathakurta & Fisher (1995, 1998) estimated the electron density distribution in the coronal hole from observations made with the space based SPARTAN 201-01,03 instrument. ...