Nova 1998 2 in M31 this image of the second Nova in M31 in 1998, was made from 38 exposures of 45 seconds integration time. It was made at September 21, 22h 20m UT. Telescope was a CG11 at f/6.3, no filters were used. The long list of processing steps caused the artefacts at the overexposed center of the galaxy and in many of the brighter stars. During the exposures thin clouds covered the sky but the CCD cuts through them, allowing me to obtain this result. ...

In 2001, Westerbork observations of the disturbed galaxy named VV-29 (alias Arp-188, UGC-10214) showed that there is second smaller galaxy (named VV-29c) that appears behind the western side of the main body of the distorted galaxy. ... The galaxy was featured as the May 2, 2002 Astronomy Picture of the Day . ... When VV-29 had its 15 minutes of fame in May 2002, it appeared under the name "The Tadpole Galaxy," but based on the images above, we will always think of it as "The CHAINSAW"! ...

... 18sep08: bias for 3a/3b changed. Look at p2030 data (polA,polB summed) . 21sep08: bias for all beams changed. ... The wapps in 3 level mode take 100 MHz bw with 64usec sampling and 256 lags. alfa is centred at 1440 Mhz with the 100 Mhz 1390-1490 filter int. The total power was computed and then averaged to .1 seconds. ... Beam 6b is dead and p2030 is adding polA + polB. ... The a2010 data taken on 21sep08 was analyzed to check the stability of all the beams after the bias changes in alfa. ...

... Version 1.34.3 - 2002-11-05 (CB) -------------- Minor ammendment made to perl script for SPR 3016 Version 1.34.2 - 2002-11-05 (CB) ------------- Perl scrip ammended to fix problem identifying engineering-4 data (fixes SPR 3016) Version 1.34.1 - 2002-10-22 (CB) ------------- Configuration file ammended for omdetect version 4.1 (fixes SPR 3001) Version 1.34 - 2002-10-17 (CB) ------------- Uploaded for release track ... Intermediate file names changed so that they aren't overwritten. ...

... The author of the cover picture is Vasilisa Verkhodanova. The picture symbolizes our perception of the world. The modified emblem of the SAO unifying the 6-m optical telescope and the raditelescope RATAN-600 of SAO RAS is placed in the center of the radio galaxy isophotes. From the one hand, we can investigate the properties of radio galaxies with these (and other) telescopes, and try to study physical processes providing their activity. ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...

HUBBLE SPACE TELESCOPE DAILY REPORT #2021 PERIOD COVERED: 0000Z (UTC) 12/10/97 - 0000Z (UTC) 12/11/97 Daily Status Report as of 345/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed NIC/2/3 7812 (NICMOS Modified Short One Orbit Parallel) The Near Infrared Camera (Cameras Two and Three) was used to obtain "JH" imaging of sky regions when another instrument is prime. ... The observations were completed as scheduled, and no anomalies were reported. ...

... The NVSS is being made as a service to the astronomical community, and the principal data products are being released into a directory accessible by anonymous FTP as soon as they are produced and verified. ... The large (4 deg x 4 deg) map cubes and total intensity only images and their associated multisource (u,v) data sets are stored as binary files in FITS format (see Grosbol et al. ... The source catalog derived from the available images is kept in directory CATALOG as CATALOG.FIT. ...

... New offset/filter box. A new filter/box is available. ... It is lighter, smaller and sturdier than the filter/clock and offset boxes used till now. ... The offset is stabilized to a few parts in a million. ... Notice that only positions 0-3 are meaningful, while values of 4 and above will leave the signal unfiltered. The box has one input BNC, and two output BNC: one outputs the signal with the same polarity as the input, the other reverses the signal (remember that FIRPO has negative output). ...

... In the Center of the Virgo Cluster . ... The Virgo Cluster of Galaxies is the closest cluster of galaxies to our Milky Way Galaxy. ... Ice Fishing for Cosmic Neutrinos . ... The equipment he used included a telephoto lens and fast color film. ... Moons and Bright Mars . ... Galaxy Group HCG 87 . ... Posing for this cosmic family photo are the galaxies of HCG (Hickson Compact Group) 87, about four hundred million light-years distant toward the amphibious constellation Capricornus. ... Next stop: Mars...

XmCCD Copyright 2007-2012 John Kielkopf ======================================= Development Log =============== March 9, 2002 Version 1.0.0 * Support for SBIG cameras using the first public SBIG library * Basic panel for operation with ds9 +--------------------------+ May 22, 2002 Version 1.1.0 * Updated to use libudrv 4.35 +--------------------------+ May 24, 2004 Version 1.2.0 * USB support +--------------------------+ March 1, 2005 ...

... Galaxy Evolution home . Cavendish Astrophysics . Cavendish Laboratory . ... Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . Radio sources and their environments . ... Publications . ... Submitted . ... Calendar . ... Paul Alexander . P.Alexander@mrao.cam.ac.uk . ...

... Submitted by Al Takeda on 11/14/2013 13:10:12 . C/2013 R1 (Lovejoy) – November 9, 2013 . Comet Lovejoy is still the brightest comet in the sky, for now. ... The magnitude is now 5.5. 6 images x 60-second subframes, Total= 6 minutes. Takahashi Epsilon-180, f/2.8 hyperbolic astrograph, Unmodified Canon T1i DSLR, Astronomik CLS Light Pollution filter, ISO 1600, Losmandy Gemini G-11 EQ mount. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... You are here: start ТЛ lbaops ТЛ tidnotes ТЛ fileprep . ... VLBI Schedule . ... Observer's Wiki . ... lbaops:tidnotes:fileprep . Tidbinbilla schedule file preparation . ... SNAP file modifications . ... Dowload the .skd and .sum files for the experiment from the pub/people/vlbi directory of the FTP site ftp.atnf.csiro.au and put them in pcfs40:~/sched_prep. ... The SNAP file needs quite a bit of modification. ... lbaops/tidnotes/fileprep.txt ТЗ Last modified: 2015/12/18 16:39 (external edit) . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... Up: Science Data Pipelines . ... We designed and developed a package which simulates extragalactic point source data within a given field of view and SIRTF band. ... The simulator is modular and extensible to enable multi-wavelength simulations, has been optimized by utilizing parallel processing capabilities, and will be used to test pipeline software. ... The extragalactic simulator is capable of generating large numbers of galaxies within a given patch of sky for SIRTF pipeline testing. ...

MAIN CHARACTERISTICS BASIC MODIFICATIONS TEST RESULTS . ... integrated drop tests in order to verify the strength of DM modified shell and equipment attachment points, functional check of new chairs and DM structure, determination of shock impacts onto the crew to verify landing safety; . ... nominal landing with the main parachute system (MPS) - drop #1 took place on December 24, 1998; . ... reduction of shock g-loads values at landing in accordance with decrease of landing speeds. MAIN | ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 September 2 . The Flare and the Galaxy . ... Despite appearances, this person is actually pointing in the direction of a bright Iridium flare , a momentary reflection of sunlight off of a communications satellite in orbit around the Earth. ... The featured flare involved Iridium satellite 15 and occurred over southern Estonia last week. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...