... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...

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• Bright Supernova Bright Supernova

MOS monitoring Fading Cal sources MOS CTI Column Correction Mallorca EPIC Cal Meeting - February 2005 Darren Baskill: http://www.star.le.ac.uk/~dbl XMM project: http://www.src.le.ac.uk/projects/xmm/ MOS CTI Column Correction Problem spotted in 1E0102.. Mallorca EPIC Cal Meeting - February 2005 Darren Baskill: http://www.star.le.ac.uk/~dbl XMM project: http://www.src.le.ac.uk/projects/xmm/ Problem spotted in 1E0102.. ...

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• http://xmm.vilspa.esa.es/sas/7.1.0/doc/omsrclistcomb/ChangeLog
• http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0106-1-0.ps.gz
• User-level errors and warnings

I added a new directory search to Zope, which returns the important fields for an individual user. ... I finished changes to the ldap search product and asked it to be moved to production. ... I ran some reports to track down our problem childrenin Active Directory. ... I'm working on a fix to the employee update sscript. ... The problem with the employee update script proved to be more elusive than I thought. ... I finished changing the employee update script to remove employees who have left. ...

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• WFPC2 Instrument Handbook Update
• WFPC2 PSF Subtraction
• STAN - February 2001

... Bug fixes below are collected in /pub/misc/XFree86OS2/fixes at the same site. If you came here by a notice of this URL in some newsgroup article: Here is the toplevel of the XFree86/OS2 pages . ... The main archive for the distribution is ftp.xfree86.org. ... The following is the list of recent file dates and sizes from the main archive at ftp.xfree86.org/pub/XFree86/3.3.6/binaries/OS2. ... Filelist of XFree86-3.3.6 The following link(s) refers to bugs known to be present in older releases. ...

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• Bugs found so far in XFree86/OS2 3.3.3
• Bugs found so far in XFree86/OS2 3.3.1
• Bugs found so far in XFree86/OS2 3.3

Download Izmccd (~2.7 MB). Solution of problems at identification of star field. ... 2) Scale is not correct. ... In this case algorithm of identification will revise all values of scale from twice smaller up to twice greater. ... There should be more than value of the field "Number of stars in frame". ... The star field is considered identified if number of the identified stars more or equally to this value. It is necessary to set value from 4 up to value of field "Number of stars in frame". ...

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... It seems that we are having teething problems with the new reference pointing capabilities. ... But it does not have some fixes for VEX problems that will affect CMVA runs. ... The changes here are not significant for users not attempting reference pointing with AUTOPEAK or other mechanism that invokes setup files with FORMAT=NONE . ... 07 Feb 2001 RCW . ... And this time, it only affects VEX users. ... Remove the ``*'' from a the names of many pointing sources in sources.pointing and peak.cmd . ...

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• VSOP Observing Schedule
• Release of 30 January 2001.
• lbaops:telecon2009feb11 [ATNF VLBI Wiki]

... Special problems arise with filters intended to measure red leaks in blue and ultraviolet filters. ... The column named REDLEAK contains an 8-character string that specifies the treatment of red leaks in short-wavelength filters. Possible values are 'MEASURED' if the red leak is measured by observations through a filter that isolates the leak; 'BLOCKED' if a copper-sulfate or other blocking filter is used; or 'IGNORED' if the leak is neither measured nor blocked. ...

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• Nonlinearity
• Sky problems
• Nature of CCD Output

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

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• ASP: Light Pollution
• ASP: Focus on Education: The Key to Success in Astronomy

... The effect of the bug has been that timestamps indicating when data was taken (FITS-header keyword CRVAL5) may be off by one second. ... DETAILED DESCRIPTION -------------------- AFFECTED KEYWORD: The affected keyword is: CRVAL5 (time stamp indicating start time of subscan) Synchronisation errors between the 1PPS pulses and the NTP-controlled system clocks have frequently caused the timestamps indicating the start of each subscan (CRVAL5) to be off by one second. ... That problem has also been fixed...

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• http://www.naic.edu/~cima/bad_fits_6.txt
• Arecibo Observatory L-Wide Band Receiver
• VIRGOHI 21

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 14, 1999 . Dark Sky, Bright Sun . Credit: STS-82 Crew , NASA . Explanation: In low Earth orbit there is not enough atmosphere to diffuse and scatter sunlight, so shadows are black and the sky is dark - even when the Sun shines. ... Tomorrow's picture: La Nina Earth . ... About APOD > . ... NASA Technical Rep.: ...

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• APOD: February 27, 1997 - Comet Hale-Bopp is That Bright
• APOD: 2015 February 18 - Dark Craters and Bright Spots Revealed on Asteroid
• APOD: 2010 February 18 - Vesta Near Opposition

... Bojan Nikolic web pages (r. 329) . ... Note however that the radiospec is built in the ?build? sub-directory of the directory you installed it to and is not installed ? ... Build radiospec wget http://www.mrao.cam.ac.uk/~bn204/soft/radiospec-1.0.tar.gz tar --strip-components = 1 -xzvf radiospec-1.0.tar.gz PATH = $INSTALLDIR/bin:$PATH scons PKG_CONFIG_PATH = $INSTALLDIR/lib/pkgconfig/ . ... You will at least also need the numpy package for Python . ... Download & building of the radiospec package . ...

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• ALMA Phase Calibration Techniques at the Cavendish Astrophysics Group

D.Chumbalov and A.Romashchenko. ... Proc. 40th International Symposium in Mathematical Foundations of Computer Science (MFCS), Part 1. ... Preliminary version: Proc. 6th International Computer Science Symposium in Russia (CSR), 2011.) download: arXiv:1102.5538 , slides: pdf . ... Bulletin of the EATCS (The Logic in Computer Science Column by Yuri Gurevich) no. 97 (2009) pp. 126--136. download: pdf . ... Lecture Notes in Computer Science 5162 Springer 2008 pp. 527-538). download: pdf . ...

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• Conference "Combinatorial Methods in Physics and Knot Theory" (February 2005)
• Labo J.-V.Poncelet: A.Shen
• Labo J.-V.Poncelet: A.Sossinski

... The Australian National University] [Department of Physics] [Paul Francis] [Main Roleplay Page] . These exercises are my attempt to adapt the technique of Problem Based Learning to the context of introductory astronomy and astrophysics classes. ... As students grapple with the puzzle, they are forced to learn the subject matter of the course. ... This exercise is designed for 1st year University students with a reasonable high-school background in Maths and Physics. ...

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• GSAOI Bulk Motions Science Page
• Blue Straggler Stars

... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

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• Rainfall in Eugene Oregon
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Domes Forum Message . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Domes and Observatories Discussion | Post . ... Gps Problem In An Ash Dome . ... Post Message | ... Because it is in a metal dome the gps does not work. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• USB2 Problems - an Astronomy Net CCD Equipment and Techniques Forum Message
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• Nexstar11GPS Handcontroller Problem - an Astronomy Net Celestron Forum Message

Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass of our galaxy. ...

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• Problems of the 1-st International Astronomy Olympiad
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... Light from a star that exploded some ten thousand light-years away first reached our fair planet in the year 1181. ... Titan Disguised . ... In the next few days, the Cassini spacecraft currently orbiting Saturn will release a probe that will descend toward Saturn's largest moon in mid-January. That moon, Titan, has a surface normally hidden from view by thick methane cloud decks. ... This bright white swath cutting across the surface of icy Jovian moon Europa is known as Agenor Linea. ...

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• The Comet and the Galaxy

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

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... Then we went on to explain more in detail how to build an interaction matrix in MCAO. ... Complete lab experiments are under way at: - UVic - Durham - Lund They all want to demonstrate the feasability of MCAO, with DMs, WFSs and phase screens. ... Miska has done an experiment in the lab with SLM phase screens (liquid crystal). ... Parallelization could be desirable for ELT simulations - Collaborations possible on realization of phase screens for experiments / AO systems: - Palomar (?) ...

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• The Brightness of the Night Sky
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Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders . ... Archives . ... Title : How Astronomers, Computer Scientists and Statisticians are working together to tackle hard problems in astronomy . ... The IIC has established an inter-disciplinary Center for Time Series with an immediate focus on astronomy. ... Chandra Blog . ... SAMSI AstroStat Prog. ...

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• The AstroStat Slog 2008 February
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