... CfA Home . HCO Home . SAO Home . ... Welcome to CfA . CfA History . ... Laboratory Astrophysics . Extreme Astrophysics . ... 617) 495-7210 . ... 617) 495-7044 . ... 617) 495-7265 . ... HEA Research . ... HEA Home Page . CFA/HEA Home Page . ... High Energy Astrophysics Division (HEAD) . Chandra X-ray Center . ... Chandra Cluster Cosmology Project . Chandra Multiwavelength Project (ChaMP) . ... Chandra-Planck Clusters Project . ... CfA Virtual Observatory Project . ...

PUL VLBI Analysis Center . ... IVS : International VLBI Service for Geodesy and Astrometry . ... An IVS VLBI Analysis Center at the Central Astronomical Observatory at Pulkovo of the Russian Academy of Sciences, also widely known as Pulkovo Observatory, has been organized in September 2006. ... The center is a part of the Pulkovo EOP and Reference Systems Analysis Center (PERSAC) . ... Results of VLBI data analysis can be found at Pulkovo EOP and Reference Systems Analysis Center (PERSAC) page. ...

... Sgr A: Fast Stars Near the Galactic Center . ... Shown above is a time-lapse movie in infrared light detailing how stars in the central light-year of our Galaxy have moved over the past eight years. ... Astronomers interpret these observations as strong evidence that the center of our Galaxy is home to a very massive black hole. ... Publications with keywords: black hole - Galactic Center - Sgr A . Publications with words: black hole - Galactic Center - Sgr A . ... The Annotated Galactic Center . ...

... In Spiral . Between spiral . ... Center of vortices . ... to density exterema . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...

... Home Observing Charles Dana Discovery Center, Central Park . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Charles Dana Discovery Center . ... 6:30тАУ8:00 p.m. The Charles Dana Discovery Center is just inside Central Park, near 110th Street between Lenox and Fifth avenues ( map ). ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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Voyager 2 clear filter image of Neptune's largest satellite Triton showing part of the boundary between the mottled "cantaloupe" terrain and the smooth plains at upper right. ... This image, taken from a distance of 40,000 km, is roughly 320 km across and north is up. ... Central Latitude/Longitude (deg): N/A . ... Imaging Information . ... Instrument: Narrow Angle Vidicon Camera . ... Instrument Field of View (deg): .424 x .424 . ... NASA Image ID number: FDS 11396.25 . ... Greenbelt, MD 20771, USA . ...

The AstroGuide . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . IPAC exists to carry out large, data-intensive processing tasks of critical importance to NASA's infrared astronomy program, and to provide scientific expertise on those projects to the astronomical community. ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

... Triggers the use of multiple phase center processing on the DiFX correlator at least at the VLBA. In practice, this puts the list of phase centers in the .v2d file used in setting up correlation. ... The argument of CENTERS must correspond to a list of names in the phase center groups listed after a PCENTERS command. For now, there is no clear way to make the phase center list scan dependent, so specify the same name for each scan on the same source. ... Usage: Keeps value of previous scan. ...

... Enjoy a bit of astronomy history this month as we welcome Dr. Daniel W.E. Green, Astronomer at the Harvard-Smithsonian Center for Astrophysics, Editor of International Comet Quarterly, and Director of The Central Bureau for Astronomical Telegrams (CBAT). ... CBAT also maintains a Recent Comet Magnitudes Page which serves as a link between the work of amateur astronomers and the professional astronomical community. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... A Web browser with Java support and an account to establish a secure Internet HTTP connection to the Goddard Space Flight Center (GSFC), is everything needed in order to use the new Control Center System (CCS). Then full access to the telemetry of the Hubble Space Telescope (HST) is given (Figure 2). A public version of CCS is also available. ... Rifkin, A. 1997, Reengineering the Hubble Space Telescope Control Center System, Institute of Electrical and Electronics Engineers Inc. ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

. Project is dedicated to facilitate the obtaining and using the Atomic data for astrophysics. This Web site is located onto the WWW server of Astronomical Institute of St.Petersburg University on the URL: hhtp://www.astro.spbu.ru/staff/AtDatCentre/ADC.html . Head of the project is A.F.Kholtygin. The PROJECT is supported by Russian Federal . Program ASTRONOMY and RFBR . Grants 97-02-17552 and 99-02-17207

... Department Number . ... Astro Space Center . ... Telephone Number . 7(095) 333 3366 . FAX Number . 7(095) 333 2378 . ... stern@lukash.asc.rssi.ru . ...

Multichannel Flare Spectrograph . ... phi - the angle between the green vertical line passing through the solar disk image and the violet radius vector "r" of the object located at the center of the spectrograph slit- red cross. positive - clockwise, negative - counterclockwise . ... mx = x coordinate of the coelostat main mirror . ... x : carthesian solar coordinate alog axis parallel to solar equator (in arcsec) . y : carthesian solar coordinate alog axis parallel to solar axis (in arcsec) ...

home resources > books . SEARCH ASP SITE: Match ALL words Match ANY word . ... Buy The Black Hole at the Center of our Galaxy at Amazon.com! Reviewed by Terrell Kent Holmes . In 1974 astronomers discovered a bright radio source at the center of the Milky Way Galaxy, in the direction of the constellation Sagittarius. It was an unknown quantity then, but astronomers now know that the object is a supermassive black hole causing a maelstrom of activity at the galactic center. ...

... Plate bending . ... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... It can be seen from the graphs that after bending the plate and adding a central suport, the curvature of the plate was quite near that of the desired Kent005 curve. ... Upon adding a central support, however, the slope of the plate decreases to a value slightly less than that of the Kent005 curve. ...