Proposal Identification No.: P1919 Date Received: 2004-Feb-02 23:39:55 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: Regular Pulsars Galactic 57 Hours Observations of Two Eclipsing Millisecond Pulsar Binary Systems in Globular Clusters ABSTRACT: The precise mechanism that drives eclipsing millisecond pulsar systems is not yet certain, although various eclipse mo dels exist that do seem to supp ort many observations. ...

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...

... Triton: Neptunes Largest Moon . 3.03.2007 . ... Lunar Transit from STEREO . ... So, looking toward the Sun, extreme ultraviolet cameras onboard STEREO B were able to record a stunning movie of a lunar transit (aka solar eclipse), as the Moon tracked across the solar disk. Solar Eclipse from the Moon . ... Stars, Dust and Nebula in NGC 2170 . ... When stars form, pandemonium reigns. ... APOD: 2007 February 24- X rays and the Eagle Nebula . ... APOD: 2007 February 23- Dust and the Helix Nebula . ...

... Not the culmination of ancient prophecy, but none the less mystical, Earth's small Moon will begin a slow slide past the enormous Sun. ... The dark, inner part of the Moon's shadow, the umbra, will strike the Earth first in Iran and trace a smooth curve across Afghanistan and Pakistan, down and through northern India. ... Please submit your completed report by Nov. 30, 1995 by email to 0002032694@mcimail.com or regular mail to John Isles, Attn: Guest Observer, 1016 Westfield Drive, Jackson, Mich. ...

... 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. ...

... Up: Proposal Processing . ... ESO is prototyping a distributed ``Phase II'' system that will allow astronomers to prepare their observations at their home institutions, while maintaining a central repository for all observation data. ... ESO is developing a Phase II Proposal Preparation system (P2PP) to collect detailed scientific programme descriptions, in the form of observation blocks (OB). ... ESO's Phase II Proposal Preparation system is an integral part of the VLT Data Flow System (DFS). ...

... Parent Directory 20-Jul-2004 08:40 - .cache 01-Nov-1994 13:00 1k .cache+ 01-Nov-1994 13:00 4k .cap/ 11-Jun-1994 00:09 - README 28-Oct-1993 08:59 1k README.summ 13-Oct-1992 14:23 1k comp_obs_94/ 02-Sep-1998 11:57 - comp_obs_95/ 02-Sep-1998 11:56 - comp_obs_96/ 02-Sep-1998 11:56 - comp_obs_97/ 02-Sep-1998 11:55 - completed_observatio.. 02-Jan-1998 12:04 582k completed_observatio.. 12-Jan-1998 08:55 575k completed_observatio.. 16-Jan-1998 12:05 572k completed_observatio.. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... The Optical Counterparts to Galaxies in the Cen A Group Discovered by HIPASS . ... This group of galaxies was recently the subject of a separate and thorough optical survey (CУДtУ? et al. 1997), and thus presented an ideal comparison for us to test the survey performance. ... Six of the new members are previously uncatalogued galaxies, while four were catalogued but assumed not to be group members. ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

... For observations we selected all Case galaxies in the zone = - from the Case lists III, IV, V, VIII, XI, XII and XIII which were classified in the Case survey by some indication on presense of [O III ] 4959,5007 emission lines (vs - very strong, s - strong, m - medium, w - weak, w? - weak?) and which had not been observed yet. ... Аdditionally nine Markarian galaxies in the same sky region were observed in hope to have better completeness in picking up all probable BCGs. ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... 10 (IAUC # 4742) 2/25 13.3 16 j 2/27 13.5(*) 18 lc 2/28 13.8 19 p 3/1 13.2 20 w 3/2 13.5 21 a 3/4 13.8 23 p 3/6 13.3 25 c 3/7 13.3 26 c 3/8 14.1 27 m 3/8 13.3 27 r 3/9 13.4 28 c 3/9 14.1 28 m 3/10 13.6 29 j 3/10 14.0 29 a 3/11 13.6 30 c 3/11 13.5 30 r 3/11 13.7 30 s 3/13 [13.69 CCD Mag.] ...

... The schedule assigned id (example: AS05) for your observing program. ... Use the time you started using the telescope including when you started taking calibrations. The time you opened for on sky observations can be entered later in the activity log. UTC End Time: . ... Focus Log: . ... The focus position can be obtained under the Telescope column of the System Status in ACP or from the run log. ... When all fields are filled out press this button to email the log to the ARCSAT and community. ...

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Astronotes Armagh Planetarium's Stellar Blog! ... March . ... Posted on May 20, 2015 | No Comments If you missed the Lyrids meteor shower in April, starting of May you had another chance to see some shooting stars as the Eta Aquarids meteor shower peaks on the [ ] . Continue Reading.. ... 3 Comments Already the year 2015 is proving to be a great year for stargazing with planets, comets and meteorites gracing the skies but prepare for March as it brings a тАШmicro [ ] . ...

... 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. ...

... Popper (1959) classified the eclipsing components as B8 V and B9.5 V. According to Wolff and Preston (1978) the primary component (B8) is a HgMn star. Spectroscopic elements were determined by Wyse (1936) from observations made in the years 1934 - 1935 and by Harper (1937) from observations 1935 -1936. ... Rachkovskaya (1985) according to Harper - 2.68 and 2.36 observed the star in the years 1967 -1968 and 1981 - 1982 and obtained the mass ratio q » 1. ...

... Home Gallery Observing Events 2012 Transit of Venus Tale-of-2-Transits, 2012 Annular Eclipse and Transit of Venus . ... 2012 Annular Solar Eclipse by Stan Honda . ... History of the Transit of Venus - prelude to the June 5th, 2012 Transit of Venus. ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

SN 1989B Light Curve Analysis. ... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... The observations were inserted against the V magnitude templete of BL, CCD photometric data, (Wells et. al, (1994) and a color trend (B-V) histogram of the mean type Ia SN (BL)(nutemp.gif). Key Words: Amateur Observations, Supernova, Magnitude Estimates, 1989B . ...