. Optical image of the structures surrounding the nucleus of Comet ISON, captured by FOCAS mounted on the Subaru Telescope. This image was taken in the early morning of October 31 in V-band (550 nm) with an exposure time of five seconds. The field of view is about 6 x 3 arcminutes. NAOJ/Observation and data reduction by Masafumi Yagi

We present the results of our observations of the white-light corona in polarized light performed at Criciuma eclipse, Brazil. During the observation of 3.11.94 we have made five couple of pictures of the solar corona in polarization light. ... Koutchmy S., Molodensky M., Starkova L., Ershov A., Matsuura O .: ... Molodensky M., Starkova L., Koutchmy S., Ershov A .: ... Koutchmy S., Molodensky M.M., Starkova L.I . ... Koutchmy S., Molodensky M.M., Starkova L.I. Koutvitsky V. and Ershov A . ...

Your Phase II Proposal and Using RPS2 . ... Perhaps the single most important thing to bear in mind when you look at your RPS2 output for a GHRS program is that RPS2 assumes your observations fall into tidy orbits with a nominal observing period and without being interrupted by the South Atlantic Anomaly (SAA). ... In some programs requiring very high wavelength precision you will not want to have your exposures interrupted by SAA passage or earth occultation because that time delay adds uncertainty. ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2010 > Spiral Structure in the Milky Way: Confronting observations and theory . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Science Data Products Forum . ... The workshop will try to clarify our picture on spiral structure in the Milky Way by bringing observers and theorists together to discuss both current views and map a path to resolve issues using forthcoming facilities. ...

... Ray Structure - Halley's Comet . Target Name: Comet Halley . ... Copyright: NASA Copyright Free Policy . Date Released: March 19, 1986 . The document " Halley's Comet " contains additional information related to this image. ... An example of the ray structure of Halley was captured on March 19, 1986, at the Mount Wilson/Las Campanas Observatories. ... The close up image, covering the inner 1 degree of the comet, shows a prolonged radius vector extending to the left. ...

On the origin of the extended infrared shell around NGC 6888 . ... The results of a complex program of research on the extended infrared shell around the nebula NGC 6888 and the star WR 136 are presented. We performed H a observations with a Fabry-Perot interferometer mounted at the focus of the 125-cm telescope and radio continuum (2.7 cm to 31 cm) and 21-cm HI observations with the RATAN-600 radio telescope. ... Curve passages in H I line through area NGC 6888. ...

... Both sets of objective transmission gratings consist of hundreds of co-aligned facets mounted to supporting structures on 4 annuli (one for each of the four co-aligned mirror pairs) to intercept the x rays exiting the HRMA. ... The two sets of transmission gratings, attached to the mounting structure are shown in Figure . ... An individual facet has 0.43-m-thick gold grating bars with 50% filling factor and 9920- period, resulting in 1.15-/mm dispersion. The HRC-S is the primary LETG readout. ...

Next: Calar Alto 2.2m observations Up: Spectral observations and data Previous: Spectral observations and data . ... A 2'' diameter circular aperture was centered on the brightest part of the target galaxy or on the star-like candidate, and a similar aperture was placed 20'' off along the direction zenith-nadir to accumulate simultaneously the night sky spectrum. ... Next: Calar Alto 2.2m observations Up: Spectral observations and data Previous: Spectral observations and data root . ...

... We report here on extragalactic large-scale structures uncovered by a deep optical survey for galaxies behind the southern Milky Way. ... The innermost part of the Milky Way where the foreground obscuration in the blue is , respectively HI-column densities remains fully opaque. ... Keywords: galaxies: distances and redshifts - large-scale structure of Universe - surveys . ... A Deep Optical Galaxy Search in the Southern ZOA . HI-Observations of Obscured Galaxies at Parkes . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

Turning the Camera Skyward . A reconfigured camera can take wide-field exposures of astronomical objects (constellations, the Milky Way, zodiacal light, moving artificial satellites, meteor showers, variable stars, etc.) to reveal much fainter objects and structures than seen by naked eye. ... This picture reveals objects more than 2.5 times fainter than can be seen by the naked eye, including not only stars but also the Orion nebula (M42), where new stars are being born. ...

... We have developed an integrated system that performs astronomical observations in Near Infrared bands operating two-dimensional instruments at the Italian National Infrared Facility's ARNICA and LONGSP . ... The user interface is organized as widget-based X11 client. ... 1993; Di Giacomo et al. 1993). ... Moreover, if the interprocess communication interface includes support for networking, the software immediately becomes network distributed software. ... DESQview/X User Guide 1993, Quarterdeck . ...

... There are result from two global VLBI observations at 3.6 cm spaced about 2 years. ... The analysis of the apparent motion, indication of the jet flow trajectory and the other implications for the CSS quasars are discussed. ... The quasar 3C380 ( ; thus 1 arcsec corresponds to 4 kpc for , ) is one of the most powerful radio sources (its radio luminosity at 2.7 GHz is ) ( Wilkinson et al. ... 3C380 is a member of the class of Compact Steep Spectrum (CSS) sources. ...

... As a result of BTA observations of 23 chemically peculiar stars with strong magnetic fields, it was found that in 22 of them the longitudinal magnetic field, measured from the hydrogen line cores are considerably lower (by about 1/3) than the value measured from metal lines in the same spectra. ... New approaches need to be developed in order to interpret the data. ... The Zeeman spectrum of a star with a strong magnetic field, 53 Cam. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The interface between the lower solar atmosphere where energy is generated by subsurface convection and the corona comprises the chromosphere, which is dominated by jet-like, dynamic structures, called mottles when found in quiet regions, fibrils when found in active regions and spicules when observed at the solar limb. ... In addition, how they affect the coronal heating and solar wind need to be further explored. ...

... Pastel Planet, Triple Eclipse . ... Leo A: Nearby Dwarf Irregular Galaxy . ... Why isn't this small galaxy simple? The above image and contemporary observations of small nearby galaxy Leo A were supposed to show it has a simple structure. Now Leo A is known.. A Full Sky Multi Colored Auroral Corona . ... The Galactic Center in Infrared . ... The center of our Galaxy is a busy place. In visible light, much of the Galactic Center is obscured by opaque dust. ...

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

P. Frisch - Warm partially ionized interstellar gas at the Sun . ... W. M. Goss - Time variations in small-scale galactic HI structure toward 3C138 . S. Stanimirovic - Does tiny-scale atomic structure exist in the ISM? ... T. Bania - The distance to molecular clouds via HI self-absorption . ... C. Heiles - Arecibo Millennium Survey statistics of magnetic field, column density and turbulence in the CNM . R. Crutcher - Magnetic fields in molecular clouds . ...

... Meta Index / Home Page / Output Files / Summary File specification from The observation/ slew record is the first record of the file and it will have the following structure. Observation Summary File: Observation Record . ... Note . ... SLEW ' . ... Comment . ... A20,1X . Scheduled Start Time . ... A59 . ... Identifies the record as an Observation or a Slew Record . The syntax is ppppppooll (Section ) for an observation and TBD for a slew. All comments will have the syntax ' / text' . ...