... A bad cable was found in wapp 4 brd 1 channel B on 07mar07. ... The 7B data did not have any jumps since the data did not go through the bad cable. You can replace the 6B data with the data found in 7B. For single pixel observers, wapp 4 polB will be jump around. ... It got worse during feb07. ... Looking at the a2010 alfalfa total power ratio PolA/polB (check out the feb07 .pdf file in the column Strips: badRatios rms A/B) . ... The ratio started to jump around at the start of feb07. ...

... Here some data observed on the 6m telescope with IFP installed in the OLD focal reducer are presented. ... Mkn 3: velocity field . ... NGC 5252: [OIII] image . ... NGC 5252 was observed 23 Feb. 1998 in the [OIII]5007 emission line with CCD TK1024 as detector. ... We observed the ionized gas velocity fields of the spiral galaxies with two purpose. ... Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the Ha image of the galaxy . ... NGC 4100 . ...

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... Phase 1 Proposals . ... Data Handling and Products . ... Science Data Products Forum . ... Science Announcements . ... Published: 19 Dec 2014 . ... The allocation of ESO telescope time for Period 95 is expected to be emailed on 22 December 2014. ... The ESO GOODS advanced data products are now available via the Science Data Product query forms of the ESO Archive Facility ....

... Artist?s conception of the collision of Comet Shoemaker-Levy 9 with Jupiter, as seen from the Galileo spacecraft. At the time of the first impact, the comet fragments will be much farther apart than shown in this illustration. ... One orbit, computer May 18, 1993 by Syuichi Nakano, showed that the comet passed close to Jupiter in July 1992, and would pass within 45,000 kilometers of the center of Jupiter in July, 1994. ... The fragments of Shoemaker-Levy 9 move around Jupiter. ...

The large magnetic cloud caused by coronal mass ejection at the Sun on January 6, 1997 came to the Earth at early morning on January 10 and continue to interact with Earth's magnetosphere till January 11 (see for example home page of this event prepeared by Dr. M.Peredo http://www-istp.gsfc.nasa.gov/istp/cloud_jan97/event.html ). ... During the days discussed here INTERBALL-1 satellite was in the magnetosphere (MS) near its dusk flunk - see the Fig. 1 for compearing. ...

Next: Phase Dispersion Minimization Up: Period Analysis Previous: Period Analysis . Period determination for short period stars is performed by observing target fields several times per night for several consecutive, or closely spaced, nights. ... First the individual frames are debiased and flat--fielded, then fluxes within a four arcsecond aperture around each star (targets and randomly chosen background stars) are extracted. ... Phase Dispersion Minimization . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Lightcurve of HW Vir from images obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory . The blue triangles show the difference between two stars whose brightness is constant. ... This shows the value of the Faulkes Telescopes in the follow-up observations of eclipsing binaries with the aim to detect and characterise additional circumbinary companions. ...

ATNF ATUC Memorandum To: ATUC From: John Reynolds Date: 29 November 2004 Subject Parkes 50cm RFI Summary The Parkes 10/50cm receiver system installed in October 2003 continues to function well. The main limitation at present is Radio Frequency Interference (RFI) caused by Television transmissions in the 50cm band, both within and outside the nominal observing band (648-712MHz). The RFI, if unmitigated, threatens to make useful observing in this band very difficult. ...

... Tonight's Sky . ... Observing . ... Star Atlas . ... stars . ... Astronomy for Kids . ... Picture of the Day . ... Observing springtime deep-sky objects with a large telescope . ... What causes spikes around stars in pictures, and how can I prevent them? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Calibration and analysis of this observation posed very interesting challenges for the authors, in particular dealing with an exciting new instrument whose on-orbit calibration was not yet well defined. ... Five mosaic positions were observed during five consecutive orbits as well as observations for dark and flat calibration. ... Darks and flats had to be created from contemporaneous reference observations and problems within the calibration process had to be resolved. ...

Educator's Guide to Sunspots . ... Naked eye observations of the Sun will result in blindness. The improper use of telescopes or binoculars will cause blindness much faster. ... Binoculars, with the front of one ocular covered, can be used to project a sharp image of the Sun on to a white piece of paper. ... Aim the binoculars by tilting them up and down and back and forth until the Sun shines through. ... Sharpen the image of the Sun on the paper by using the binocular's focusing knob or lever. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... The subject here is a relatively nearby star with the unassuming name of Beta Pictoris (commonly called "Beta Pic" for short). About 15 years ago, Beta Pic was found to be encircled by a nearly flat disk of dust, large enough to be resolved using ground based telescopes. ... One thing it can do is take very high resolution images, in a sense zooming in on the very inner regions of the disk around Beta Pic. ... 2008 Phil Plait. ...

Astrophysics Group: USS Drongo Briefing To: From: CC: Date: Re: Captain Howard Astrophysics Group Ships Computer 05/06/02 Initial Conclusions from Astrophysical Observations Summary We have landed at one of the poles of Ziggy. ... Ziggy's moon is in an orbit that carries it over the poles. ... At our current location, the sun will be above the horizon for half a ziggy year, and then below the horizon for half a ziggy year, just like at the poles of the · · Page 1 Earth. ...

... Comparing observations more than a century apart, Hipparchus proposed that the axis around which the heavens seemed to rotate shifted gradually, though very slowly. Viewed from Earth, the Sun moves around the ecliptic, one full circuit each year. ... During an eclipse, Sun, Earth and Moon form a straight line, and therefore the center of the Earth's shadow is at the point on the celestial sphere which is exactly opposite that of the Sun. ... Some 2000 years after Hipparchus, in the year 1840. ...

The Wanderer (E. Maresca 1961) When I'm the type of guy who will never settle down Where pretty girls are will you know that I'm around I kiss'em and I love'em ' cause to me they're all the same I hug'em and I squeeze'em they don't even know my name They call me the wanderer - yeah -the wanderer I roam around around around ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. €а€аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...

... Swinging around the Sun's eastern limb on Monday, a group of sunspots labeled active region AR1748 has produced the first four X-class solar flares of 2013 in less than 48 hours. ... Light from the stellar explosion that created this energized cosmic cloud was first seen on planet Earth in October 1604, a mere four hundred years ago. ... The largest and most notable was Earth's Moon, obscuring a big chunk of the Sun's lower limb as it moved across the solar disk, as viewed from Fremantle, Australia....

... Time calculated from Fermi GBM Trigger Time = 14:12:08.67 ( Connaughton, GCN 9230 ). 1% coincident with our start zero image time. 3x3 degrees around Swift XRT position . ... SUBJECT: GRB 090424 : MASTER-Net prompt optical limit DATE: 09/04/25 20:29:42 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski ... Our observations results: ---------------------------------------------------------------------- Fermi GRB Trigg.* ...

. Image where taken 11.03.97, 02:25.3 UT (exp 30s) at the Moscow observatory of SAI , using 0.10-m F/2 camera (installed on AVR-1 refractor) with CCD SBIG ST-8 and with B filter . by . V. Esipov and A. Martis . [ Go to next observation ][ Go back to Our observations list ] . Andrew A. Martis . martis @ sai.msu.ru .

... An analysis on new observational data taken with the MPFS and SCORPIO spectrographs indicates that we are dealing with the "galactic wind": the gas is blown above the galactic plane with the characteristic velocity of about 130km/s. The gas outflow is caused by a combined action of winds from the supernovae and young massive stars located in the galaxy's circumnuclear region. ... The most probable hypothesis is that the accretion of intergalactic gas clouds is feeding their star formation. ...