The results of a search for ultrarapid variability of galactic water maser sources at the wavelength 1.35 cm on a timescale of several minutes to 1 h are reported. A special observational technique was developed. ... Among those, several sources that have shown such variability were found. ... Clear evidence for such a variability type was found in at least two sources: W49N and W33B. Variability of this kind displays itself only in certain states of the water masers. ...
... 16.03.2001 . ... March 16 2001 09:00 (Moscow time) . During the recent communication sessions a routine check out of the "Mir" onboard systems was performed, trajectory paramatres were registered, analysed and processed. The cargo ship "Progress M1-5" motion control system was given a trial run to get the complex ready for de-orbiting. The complex remains pressurized, the thermal mode is normal.The batteries generate enough electric power to provide onboard systems nominal performance . ...
Mark your calendars to reserve Tuesday, December 13 for a sensational astronomy meeting! The Amateur Astronomers Association of Princeton is presenting astronomer and author Kim Weaver for a presentation titled: "New Eyes on the Universe: Observing Beyond Hubble with the Chandra and Spitzer Space Telescopes," and will highlight violent processes and dust-enshrouded objects revealed only by searching for signatures in x-ray and infrared light. ...
. Forum . Photogallery . Poetry . Noctilucent . clouds . Museum . Other . Links . Site map . THE PROBLEM . The Problem Review. The Facts of the Tunguska Paradox. Witnesses. Hypotheses about the nature of Tunguska Explosion. The most interesting articles about the Tunguska Paradox. Bibliography. [an error occurred while processing this directive]
J/AstL/vol/page SAI Open Clusters Catalog (Glushkova+, 2009) ================================================================================ Automated search for star clusters in large multiband surveys. ... Color excesses E(B-V), distance moduli and ages were determined for 141 new and 27 known, but poorly studied clusters. We present the Sternberg Astronomical Institute Open Clusters Catalog (SAI OCL Catalog) of coordinates, diameters and main physical parameters of these clusters. ...
Альянс "Lockheed Martin" с "Final Analysis" . Российский гражданский флот лишился спутниковой связи . ... 16 февраля компания "Lockheed Martin Management & Data Systems" (M&DS) объявила о подписании с фирмой "Final Analysis, Inc." ... В соответствии с соглашением, подразделение корпорации "Lockheed Martin" будет монопольным поставщиком работ по сетевой системотехнике и интеграции для низкоорбитальной системы спутниковой связи FAIsat, создаваемой "Final Analysis". ...
The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...
EYEPIECE Journal of the Amateur Astronomers Association of New York March 2009 Volume 57, Number 3, ISSN 0146-7662 Want First-Rate Imaging on a Snowy Day? ... For the past month, I've been experimenting with a relatively new service: renting time on research-level telescopes online. ... It includes a cost adjustment for phases of the Moon. ... W HAT'S UP Pollux, the brightest of Gemini's "twins," and Epsilon Tauri in the Hyades are the most prominent winter stars known to have planets. ...
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