Next: Wavelength calibration Up: Getting Started Previous: Detecting lines in . ... and the Calibration Starting Row will be used for the lines identifications. ... After setting these parameters, click the button. to pop up the Identify window. ... The identification starts by clicking on , which plots one row of the spectrum in the graphic window, indicates the position of the detected arc lines with blue vertical traces and gives a cursor. ... Figure: Lines Identification Window . ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... More UFOs identified . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... As described in "Tabular Storage of STIS Data" on page 20-5 , raw time-tagged Sdata are stored in an event table which contains separate columns for the x and y pixel coordinates and the arrival time of each detected photon event. ... Generate a series of ACCUMulated images from user specified time intervals of data and then process the image(s) with calstis . ... The default behavior for inttag is to accumulate all events from the table, writing the results as one image set in the output FITS file....

Next: Analysis Tools for Nebular Emission Lines . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... The direct image is used to locate objects of interest, to find the position of the appropriate spectra in the grism image, to determine the optimal extraction technique to use, and to calibrate the wavelength range of the extracted spectra. ... Figure 1: The NICMOSlook User Interface . ...

Stellarium 0.12.3 . ... ClassљList . ... StelLocationMgr Class Reference . Manage the list of available location. ... locationForString (const QString &s, bool *ok=NULL) const . ... Get whether a location can be permanently added to the list of user locations The main constraint is that the small string must be unique. bool StelLocationMgr::deleteUserLocation . ... Return the StelLocation for a given string Can match location name, or coordinates. bool StelLocationMgr::saveUserLocation . ...

... Meta Index / Home Page / Errors . ... warning . ... For instance, if the PROPOSAL information record is missing the user can add a fake one to the SOSF without this having any effect on the data reduction. corrective action: Continue. ... For a certain exposure in the ODF one of the parameters was not found in the housekeeping data. ... RGS, EPN, OM : the current exposure is found to contain more than one distinct calibration mode. corrective action: In the summary file: MODE = UNDEFINED . ... error...

... NASA's Hubble Space Telescope has detected a long-sought population of comets dwelling at the icy fringe of the solar system . The observation, which is the astronomical equivalent to finding the proverbial needle-in-a-haystack, bolsters proof for a primordial comet reservoir just beyond Neptune , currently the farthest planet from the Sun . ... The comet-disk lies just beyond Neptune and might stretch 500 times farther from the Sun than Earth . ... Comet Introduction Kuiper Belt Objects . ...

... The close X-ray binary with relativisic jest, contained probably a black hole, Cygnus X-3 has been detected in first time in Gamma-rays at enegries higher 100 МeV (AGILE, Tavani et al., ... Koljonen K.I.I.; Hannikainen D.C.; McCollough M.L.; Pooley G.G.; Trushkin S.A. The hardness-intensity diagram of Cygnus X-3: revisiting the radio/X-ray states 2010, MNRAS, 406, 307-319. ... X-ray image of Cygnus X-3 (Chandra) . ... Light curves Cygnus X-3 in gamma-rays (AGILE) and in radio cm-bands (Ryle tel., ...

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. ...

... The Dark River to Antares . ... Connecting the Pipe Nebula to the colorful regon near bright star Antares is a dark cloud dubbed the Dark River, flowing from the picture's left edge. Murky looking, the Dark River's appearance is caused by dust obscuring background starlight, although the dark nebula contains mostly hydrogen and molecular gas. ... To the right of the North America Nebula, cataloged as NGC 7000, is a less luminous nebula that resembles a pelican dubbed the Pelican Nebula. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Time-Slice image in H тАУ 0.8 ? showing the ribbon associated with the surge-like event, the rising filament and its eruption as a dark feature. Bottom: H + 0.8 ? ... We study a sequence of eruptive events including filament eruption, a GOES C4.3 flare and a coronal mass ejection. ... and H + 0.8 ? ... We establish that the filament destabilisation and eruption are the main trigger for the flaring activity. ...

... 2010 October 25 . Water Ice Detected Beneath Moon's Surface . ... LCROSS , LRO , NASA . ... Pictured above from LRO, areas in false-color blue indicate the presence of soil relatively rich in hydrogen , which is thought likely bound to sub-surface water ice. ... How deep beneath the surface the ice crystals permeate is still unknown, as well as how difficult it would be to mine the crystals and purify them into drinking water . ... About APOD | ... NASA Web Privacy Policy and Important Notices . ...

... Proposal Type: General Category: Observation Category: Time Requested this semester: Hours already used for this pro ject: Additional Hours required to complete pro ject: Minimum Useful Time : Expected Data Storage: Prop osal Title: Regular Pulsars Galactic 85 46 1.25 over 500 GB Millisecond pulsar searches in unidentified Fermi sources at high ... Many of these MSPs are being discovered worldwide in radio searches of unidentified LAT sources located at high Galactic latitudes. ...

... Tidal influence on each of the galaxies in our sample is quantified by identifying and measuring the distance to the nearest companion, using a photometric technique with good completeness characteristics. ... Massnormalised starformation rates were derived using galaxy stellar masses estimated from zband luminosities Nearest companions were identified using the algorithm illustrated in Figure 1. ... Some of the lowredshift galaxies in our sample with close companions are illustrated in Figure 3. ...

THE 75th NAME-LIST OF VARIABLE STARS. ... The 75th Name-List consists of two tables. ... the literature, taken from positional catalogues, including USNO A1.0/A2.0 and GSC, or determined by the authors); the range of variability (sometimes the column Min gives, in parentheses, the amplitude of light variation; the symbol ( means that the star , in minimum light, becomes fainter, than the magnitude indicated); and the system of magnitudes used ( P are photographic ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

IDENTIFICATION OF INTEGRAL SOURCES WITH ASTRONOMICAL ARCHIVAL PLATES (1,2) (1,2) RenИ Hudec (1) , Filip Munz , Petr KubАnek( 1,2) Astronomical Institute, Academy of Sciences of the Czech Republic, CZ-251 65 Ond ejov, Czech Republic E-mail:rhudec@asu.cas.cz (2) INTEGRAL ISDC, Versoix, Switzerland ABSTRACT The ESA INTEGRAL satellite (International Gamma Ray Laboratory) launched in October 2002 continues to deliver valuable data about the gamma-ray sky. ... LEIDEN/JOHANNESBURG F.A. PLATES 8. ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

... An error involving a missing tasks parameter indicates that the parameter file may have changed between the last time the task was used and the current version. ... If still in trouble, delete the parameter file in `myiraf/uparm' corresponding to the task (the names are somewhat contrived, but with a bit of imagination it is not too difficult to identify the right one). ... The imcnts task and region masks . ... A region descriptor of the kind: . CIRCLE(403, 403, 22.5) . ... See `help regions'.) ...