... The GHRS Instrument Handbook is the single most useful reference about the GHRS except for this data handbook; it describes instrument operating modes as well as observing strategies. ... GHRS Instrument Handbook Versions . ... The Goddard High Resolution Spectrograph: In-Orbit Performance," 1995, PASP , 107, 871. ... Ebbets, D.C., J.C. Brandt, and the HRS Investigation Definition Team, "Ultraviolet High-Resolution Spectroscopy from the Space Telescope," 1983, PASP , 95, 543-549. ...

Images of Pluto taken by the NASA Hubble Space Telescope with the ESA Faint Object Camera. These images, taken in late June and early July, 1994 are the first views which allow resolution of features on Pluto's surface. ... The large lower images are processed versions made from a number of Hubble observations. ... Central Latitude/Longitude (deg): N/A . ... Instrument: HST ESA Faint Object Camera (FOC) . ... Illumination Incidence Angle (deg): N/A . ... Greenbelt, MD 20771, USA . ...

Proposal Identi cation No.: A1259 Date Received: 1999-Jan-29 13:55:01 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Galactic Total Time Requested: 4.9 Hours Proposal Title: HI self-absortion study of dark clouds ABSTRACT: We propose observing atomic hydrogen inside dark clouds through 21 cm self-absorption. The OH (1665 MHz and 1667 MHz) will be observed simultaneously. ... Maybe Part of the observing run. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

Next: The Transmission Gratings Up: The Instruments Previous: The Instruments . ... A conventional cross-grid charge detector reads out the photo-induced charge cloud and the electronics determine an arrival time to 16s, and the position with a resolution of about 18 m or 0.37 arcsec. ... The Massachusetts Institute of Technology's Center for Space Research, in collaboration with Lincoln Laboratories, developed the detector system and manufactured the CCDs; Lockheed-Martin integrated the instrument. ...

... 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. ...

... Credit: STS-82 Crew , NASA Explanation: The Hubble Space Telescope 's second servicing mission has been completed. Every few years, the telescope is visited by a Space Shuttle to allow astronauts to switch old instruments for new. ... These new instruments will act like eyes sharing the 2.4-meter telescope mirror with the remaining instruments: the Wide Field Planetary Camera 2 and the Faint Object Camera . ... NASA Official: Jay Norris. ... Publications with keywords: Hubble space telescope . ...

... February 21, 1997 . New Eyes for the Hubble Space Telescope . ... Explanation : The Hubble Space Telescope 's second servicing mission has been completed. Every few years, the telescope is visited by a Space Shuttle to allow astronauts to switch old instruments for new. ... These new instruments will act like eyes sharing the 2.4-meter telescope mirror with the remaining instruments: the Wide Field Planetary Camera 2 and the Faint Object Camera . ... About APOD > . ...

... Science Publications > Science Announcements > 8th VLTI Summer School: High angular resolution in astrophysics: optical interferometry from theory to observations . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... Optical/infrared long-baseline interferometry has reached a new stage with the advent of multi-telescope arrays accessible to a broad community of astronomers, most notably VLTI . ...

... ARC 3.5m | Instrument Summary . ... ARCES (Echelle) : the ARC Echelle spectrograph, a high resolution (R~31,500) echelle spectrograph that observes the entire wavelength range from 3200 е to 10000 in a single image on a 2048x2048 CCD. This instrument is permanently mounted at the NA1 port. ... In addition to the facility instruments, several visitor instruments have been used at the 3.5m, and some of these are available to the ARC observing community by contacting the instrument PIs: . ...

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

... Space Research Institute . Main . ... Main results of the experimental and theoretical research completed in 2011 . An automated method for mapping of vegetation cover over Russia using Earth observation data . ... The Space Research Institute of Russian Academy of Sciences . ... P.285-302. (in Russian) . ... P.103-116. (in Russian) . ... Main results of the experimental and theoretical research completed in 2010 . Main results of the experimental and theoretical research completed in 2009 ...

... We have started a programme of observations of nearby starburst and AGN galaxies with MICHELLE, with the aim of investigating the spatial extent of "Unidentified Infrared Bands (UIB)" emission in these galaxies, and in particular relating these to multi-frequency matched resolution radio maps. ... The spatially integrated MICHELLE spectrum of NGC 7469 in the 8 - 11.5µm range shows an equivalent width of 11.3µm UIB feature which is much smaller then measured by ISO. ...

VIII Russian-Finnish Symposium on Radioastronomy . ... Solar radio bursts study with high spatial and temporal resolution . ... Observational possibilities of RATAN-600 and some problems of solar activity . V. Bogod, V. Garaimov, N. Komar, L. Opeikina . ... Solar flare radio spikes . ... On the correlation of MetsДhovi solar mm-wave bursts and Type III metric wave observations . ... Database of the solar radio observations using RATAN-600 and Large Pulkovo Radio Telescope . ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

... Tonight's Sky . ... News . Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... More trouble for Hubble . ... STIS observations account for about 30 percent of all Hubble scientific programs in the current observing cycle. ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Le t†йlescope Hubble doit trancher le cas de la plan†иte Fomalhaut b . ... A partir du 27 mai, le t†йlescope spatial Hubble doit observer Fomalhaut et aider les chercheurs †а d†йterminer si l'†йtoile est accompagn†йe ou non, d'une plan†иte. ... Etat du ciel . ...

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

... The substepping technique is used for the Hubble Space Telescope (HST) imaging to cope with the problem of undersampling and to improve resolution. ... For the HST, undersampling means that the size of the pixel in a camera is larger than the critical value determined by the optics of the telescope, and aliasing takes place. ... Sampling is an operation to integrate a ( x ) within a pixel, and to assign the result to this pixel (Figure 1 A). ... Figure 1: Substepping ( N =2) and normal sampling. ...

Next: Reduction of long-slit spectra Up: Long-slit spectroscopy Previous: Long-slit spectroscopy . ... pixel -1 and spectral resolution of about 12 ? ... We used the spectrograph ALFOSC equipped with a Loral (W11-3AC) CCD, with a 13 400 slit, and grisms #6 and #7 (110 ?/mm), which provide a spectral dispersion of 1.5 ? ... The seeing during the spectral observations was 08. Next: Reduction of long-slit spectra Up: Long-slit spectroscopy Previous: Long-slit spectroscopy Labaratory "Structure" . ...