. X-ray Zoom and Optical Image, gif version, PowerPoint version . Color X-ray Zoom of Nucleus Only, Small JPG, 64 MByte TIF . Optical Image of M31 from Digitized Sky Survey . Chandra Nuclear Region Registered to HST Double Nucleus . X-ray/HRC 'movie' showing M31* SMBH variability gif version, . 'Our Chandra M31 Campaign: Some Surprises and M31*', Talk at the Six Years of Science with Chandra Symposium, pdf version,

. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400

ST-ECF Instrument Science Report ACS 2001-002 The Effective Spectral Resolution of the WFC and HRC Grism A. Pasquali, N. Pirzkal, J.R. Walsh, R.N. Hook, W. Freudling, R. Albrecht, R.A.E. Fosbury March 7, 2001 ABSTRACT We present SLIM simulations of the size and orientation with respect to by which the object extension along resolution of the grism. ... In the case of ACS, the nominal spectral resolution is 40 е/pix and 29 е/pix in the first order spectra of the WFC and HRC grism, respectively. ...

Chairman: Mark Lopez (609) 393-2565 mal455@earthlink.net Editor: Victor Belanger (609) 448-8598 vic@apink.com Assistant Director: John Miller (609) 252-1223 jcm726@earthlink.net Volume 32 From The Program Chairman I know that most of you are regular readers of Sky Telescope and Astronomy magazines, and like myself, you are also frequent visitors to NASA's Astronomy Picture of the Day web site ... He began astro-imaging in1996 with a 10" Schmidt Cassegrain and a CCD camera. ...

VARIABLE STARS, THE GALACTIC HALO AND GALAXY FORMATION C. Sterken, N. Samus and L. Szabados (Eds.) 2010 Formation Mechanisms for Spheroidal Stellar Systems O. K. Sil'chenko 1 Sternberg Astronomical Institute of the Moscow State University, Moscow, Russia Abstract. Spheroidal stellar systems on various scales include elliptical galaxies, dwarf spheroidal galaxies, and globular stellar clusters. ... The formation mechanisms of the oldest globular clusters represent a puzzle yet. ... 2009). ...