... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

... By undertaking a spectral and photometric investi­ gation of the central part of the bright elliptical galaxy NGC 759, we have found an optical counterpart for the circumnuclear molecular gas ring with the radius of # 3 ## (# 1 kpc) which was earlier reported by Wiklind et al. ... 2 Fig. ... More likely, this ring may be a consequence of a tidal encounter between the elliptical galaxy NGC 759 and a large spiral galaxy which was accompanied by a substantial gas accretion. ...

... 322, L29 ± L36 (2001) The 2dF QSO Redshift Survey ± V. The 10k catalogue S. M. Croom,1w R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 N. S. Loaring,4 L. Miller4 and I. J. Lewis1 1 2 3 4 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of Durham, South Road, Durham DH1 3LE Department of Physics, Oxford University, 1 Keble Road, Oxford OX1 3RH Accepted 2001 March 7....

Some results of the study of shells (arcs) in the near-nucleus region of comet Hale-Bopp are presented. ... All these calibration procedures gave an opportunity to draw on each image a polar coordinate grid ( rho, phi ), where rho - the distance of the shell point from the nucleus (cometocentric distance in 10 4 km), phi - the polar angle measured with respect to the axis directed to the Sun. ... T = Delta t / (N + Delta N) = Delta t / (N + Delta psi / 360) = 360 Delta t / (360 N + Delta psi), (2) . ...