. Back to A.Zasov's homepage.

... 1996A .. 117.. 1S Part II, 180<l<240; . ... 369L Part III, 120<l<130, |b|<10; . ... Finally, we argue that the red-sensitive surveys (ESO R; POSS II-R, POSS II-IR) are the best suitable material for galaxy searches in the zone of avoidance. ... As the fifth part in our series of papers on galaxies in the "zone of avoidance" (ZOA) of the Milky Way we present 1346 new galaxy candidates discovered during a systematic search on Palomar Observatory Sky Survey (POSSI-E) red-sensitive prints. ...

This source is hiding behind our Galaxy at a distance of ~18 Mpc, located at a galactic latitide of 0 degrees. ... As we look towards longer wavelengths, 60 micron, to try and penetrate the Galactic Plane, we still see confusion from galactic sources. ... If the image seems some what confusing that is because the MOST is a continuum radio telescope and when it looks in the direction of our Galaxy it detects radiation from sources within our Galaxy and from sources that may lie behind our Galaxy. ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

... Does lightning occur only on Earth? Spacecraft in our Solar System have detected radio signals consistent with lightning on other planets, including Venus, Jupiter, Saturn, Uranus, and Neptune. ... Apollo 15's Home on the Moon . ... The forecast for Venus is cloudy, cloudy, cloudy. ... In his science fiction story "From the Earth to the Moon", he outlined his vision of a cannon in Florida so powerful that it could shoot a "Projectile-Vehicle" carrying three adventurers to the Moon. ...

... connection points . ... The point P3 is the connection between the horizontal and vertical actuators and is the axis of rotation for the tail gunner motion. processing: survey/020204/reduc We can compute P3,P5 (the moveable points) in dome centerline coordinates if we have the actuator distances and we know the positions of the above connection points in dome centerline coordinates for a given position of the tertiary (say the nominal focus position).(see actuator distances to dome centerline ). ...

... GSAOI Home . ... Science . ... Despite vast increase in our understanding of the evolutionary nature of planetary nebulae (PNe) during the last three decades, a central question remains: where is the missing mass? Theoretical evolutionary tracks predict that all stars with masses in the range 1.4-8 M Sun should become PNe. ... Clearly, much of the mass of the planetary nebula shell must remain un-ionized, and much of it may be in molecular form. ... The Magellanic Cloud PNe are ideal for this. ...

The Arcetri Catalog contains measures and bibliographic data for all known H2O maser sources north of declination = -30 degrees (to be observable with the Medicina radiotelescope). ... This database is fully described in Cesaroni et al. ... A statistical analysis on the atlas has been carried (Palagi et al 1993). R. Cesaroni, F. Palagi, M. Felli, M. Catarzi, G. Comoretto, S. Di Franco, C. Giovanardi, F. Palla: A Catalogue of H2O maser sources north of delta=-30 , Astronomy and Astrophysics Suppl., ...

... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy NGC 5128 . ... NGC 5128 is the closest example of a giant early type (elliptical or S0) galaxy. Although often dubbed as a peculiar elliptical galaxy since it has a dust lane with recent star formation and an active galactic nucleus, the majority of early type galaxies have similar structures as revealed by recent surveys. ...

... diffuse nebula; NGC 2070, Tarantula Nebula . ... planetary nebula; NGC 7662 . ... planetary nebula; NGC 6543 . ... diffuse nebula; NGC 6618, M 17 . ... planetary nebula; NGC 2392, Eskimo Nebula . ... supernova remnant; NGC 1952, M 1; a supernova remnant . ... supernova remnant; Veil Nebula . ... planetary nebula; NGC 6853, M 27 . ... diffuse nebula; NGC 6611, M 16 . ... planetary nebula; NGC 2392 . ... supernova remnant; NGC 1952, Crab Nebula . ... diffuse nebula; NGC 6523, Lagoon Nebula . ... NGC ....

2014 May version . ... Green D. A., 2014 , Bulletin of the Astronomical Society of India, 42 , 47-58. ( .pdf , or arXiv.org:1409.0637 ) If you make use of the detailed version of the catalogue, then plaese also cite: . Green D. A., 2014, `A Catalogue of Galactic Supernova Remnants (2014 May version)' , Cavendish Laboratory, Cambridge, United Kingdom (available at "http://www.mrao.cam.ac.uk/surveys/snrs/" ). ... Copyright D. A. Green 2014. 25872nd access to this version of the catalogue. ...

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

ADC CATALOG HOLDINGS SHORT TITLE LIST March 29, 2002 (adapted from ftp://adc.gsfc.nasa.gov/pub/adc/archives/catalogs/key) Category 1: Astrometric and Positional Data - March 29, 2002 1090 Positions of 502 Stars in Pleiades Region (Eichhorn+ 1970) 1107A Washington Cat Visual Double Stars 1984.0 (Worley, Douglass 1984) 1131A SAO Star ...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... Impact on source motion in Galactic coordinate system is given by Kovalevsky (2003), Malkin (2011) l cos b = -A sin l, b = -A cos l sin b, where A = R0 02 /c is the galactocentric acceleration called hereafter the GA constant. ... We just have to return to the traditional many-centuries-old astrometric practice of modelling the position of a celestial object as a linear trend with two parameters: the position at the initial (conventional) epoch and the apparent (proper) motion. ... 2011). ...

. Multi-epoch observations of the ЮВ Pictoris b exoplanet. The planet was imaged in 2003 (left image) in the L' band (3.8 ЮМm) in the plane of the circumstellar disk surrounding the star (not seen here). It was detected again October 2009 (middle) when it had moved to the other side of the star. The new observations made March 2010 at 2.18 ЮМm are shown in the right panel. The planet has moved yet again relative to its position measured in 2009. Astronomy Astrophysics

... Concerning those theories, Tycho believed that all planets revolved around the Sun, but the Sun circled Earth. ... That was when he published his first two laws of planetary motion: . ... Kepler's 3rd Law . ... Earth . ... Not only were Kepler's laws confirmed and explained by later scientists, but they apply to any orbital system of two bodies--even artificial satellites in orbit around the Earth. ... By Kepler's formula . ... More will be said about Kepler's first two laws in the next two sections...

Select appropriate Chandra Fields . Multi-method X-ray source detection (VTP, wavelet, sliding cell) . Optical Imaging: Identification and Classification . ... ACIS-I 16 16 . ... ROSAT sources detected in 30ksec . Chandra vs. ... Relative Positional error . ... 2 2 optical DSS-II images around each ROSAT-detected source above. ... Typical ROSAT PSPC positional uncertainties (~ 20 ; outer circles) in many cases include multiple optical candidates. Chandra source IDs are less ambiguous. ...

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

... Ujazdowskie 4, PL-00-478 Warszawa, Poland 5 SAp CEA, Saclay, 91191 Gif sur Yvette, France 6 UMR 7164 11 Place M. Berthelot, 75231 Paris, France 7 MPE, Giessenbachstrasse, 85748 Garching, Germany 8 DA DPM&A, CIT, Pasadena, CA 91125, USA 2 7,8 4 ABSTRACT We present the first catalogue of the gamma-ray bursts (GRB) taking place outside of the INTEGRAL1 /IBIS field of view. ... IBIS/INTEGRAL data. Table 1 shows 28 localized offaxis GRBs detected by INTEGRAL between November 2002 and December 2004. ...