Armagh Observatory, 1 March 1999 . According to Armagh Observatory, the total rainfall during February amounted to 2.00 inches, slightly less than the average February figure of 2.31 inches. ... Overall the month was quite mild with an average temperature of 5.8 degrees Celsius (42.4 degrees Fahrenheit) compared with the mean February value of 4.2 degrees C (39.5 degrees F). ... FOR FURTHER INFORMATION CONTACT: John McFarland at the Armagh Observatory. ... Last Revised: 15th June 1999 . ...

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... 2011 February 22 . Star Size Comparisons . ... Explanation: How big is our Sun compared to other stars? In a dramatic and popular video featured on YouTube , the relative sizes of planets and stars are shown from smallest to largest. ... Note that the true sizes of most stars outside of the Sun and Betelgeuse are not known by direct observation, but rather inferred by measurements of their perceived brightness , temperature , and distance. ... About APOD | ...

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... Mass . 17a. Measuring Mass . ... A medium-size (1.25 inch wide) binder clip, as is used in offices to hold papers together--the type made of flat blue steel, with two wire handles. ... The theory predicts that the oscillation period should be proportional to the square root of the oscillating mass, including the mass of the clip. Note that gravity plays no part here: the oscillation period would be the same on the Moon or in zero-g. Denoting square root by SQRT, we have . ...

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... Eric Torrence 2/12 February 2004 Phase 0 (Now) DchDigis EmcDigis EmtSim trgDC L1Accept This IS the current SP6 (14.3.X) Base simulation code unchanged, only the interface elements (Digis, TsfLUT) Eric Torrence 3/12 February 2004 Phase I DchDigis TsfSim BltSim PtdSim EmcDigis EmtSim Glt Interface GltSim Deployed Validated Written Not written L1Accept Significant upgrade to L1 Simulation Could be deployed in SP6 to improve ... Eric Torrence 12/12 February 2004 ...

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... Henrietta Leavitt Calibrates the Stars . ... An Ion Drive for Deep Space 1 . ... Deep Space 1 is bound for asteroid 1992 KD in July 1999. ... Sometime in February, two of three long-lived Jovian storm systems known as "white ovals" apparently collided and merged -- forming what is now likely the second largest storm in the Solar System, after the famous Great Red Spot. ... This picture from the Hubble Space Telescope was taken on August 6, 1995 when the rings lined up sideways as seen from Earth. ...

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The computed band passes. ... The interim correlator input is filtered by 8 analog filters (50 Mhz wide at the 260 Mhz IF... one for each sub correlator). ... For bandwidths of 25 Mhz and below the real data stream is digitally down converted to complex samples I, Q streams. ... The Top figure is the halfband filter bandpass computed from the filter coefficients. ... The computed filter has aliased power, extra IQ filtering, and two applications of the filter on the resulting real bandpass. ...

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... This thread uses PINTofALE to generate a simulated Chandra spectrum. ... define a DEM . ... pset marx .par ExposureTime=50000 OutputDir='sim_ marx ' \ ; GratingType='NONE' DetectorType=' ACIS-I ' SourceFlux=-1 \ ; SpectrumType='FILE' SpectrumFile='spec_ marx .dat' \ ; SourceType='POINT' DitherModel='INTERNAL' ; marx TSTART=2006.46 ; marx2fits sim_ marx / spec_ marx .evt ; dmextract infile= spec_ marx .evt[EVENTS][(x,y)=circle(4018,4141,10)] ; [bin pi=1:1024:1] outfile= spec_ ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Moon . Planets . ... Monthly Sky Notes . ... February . ... The ringed planet will be quite bright, but unlike Jupiter it will not be the brightest point of light in the sky, this accolade will return to Sirius which is the brightest star in our night sky in the constellation of Canis Major. ... Seven days later on February 18, the Moon will be in its full Moon phase. ... Tweets that mention Wonders of the February Night Sky | ... Astronotes . ...

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Energy Tuesday, 22 February 2011 2 Tuesday, 22 February 2011 Energy Equations · Energy E is a scalar. ... 4 Tuesday, 22 February 2011 Energy · The basic principle is very familiar things don't do stuff without energy. ... Tuesday, 22 February 2011 Less kinetic energy and more gravitational potential energy Back to Kinetic energy, mostly in the ball but a bit in air currents Kinetic energy Heat energy in the ball and my hand. ... 14 Tuesday, 22 February 2011 On energy grounds alone.. ...

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SPACE TELESCOPE SCIENCE INSTITUTE TIPS Meeting 6 March 1997 R. Jedrzejewski Summary of FOC Activities for the period 27 February - 6 March 1997 FOC+COSTAR Status The FOC F/96 relay is working fine FOC/48 relay has not been used Events FOC/96 Baseline Throughput executed on Monday March 3 1997. ... The COSTAR/ FOC arms are not deployed, so the PSF is aberrated. ... We know this is not due to the OTA (WFPC doesn't see this) or COST AR (FOC arms retracted), so it has to be in the FOC. ...

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Adjust the redshift z in the applet below using the + and - buttons until the redshifted template of rest wavelengths in RED matches the "observed" spectrum in BLACK. Click the "Show" button to see the actual redshift and compare it to your value. Then click "Restart" to try again with a different randomly generated redshift and spectrum. Your browser does not support Java, or Java is not enabled. ... The numbers on the red template and the spectrum are wavelengths in nanometers . ...

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... Bad Astronomy . ... Week of January 11, 1999 The phrase "once in a blue moon" is a common one in English. ... A blue moon is not really blue, but actually is the name given to the second full Moon in the same month. ... If a blue moon happens in January, it means that the second full Moon happens very late in the month. ... Odder still, the full Moon will occur early in March, which in turn means March gets a blue moon as well as January, while February doesn't even get a full Moon! ...

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22nd of February 2015 . MALT-45: A 7 mm survey of the southern Galaxy . ... One significant result from the 5 degr 2 survey is a statistically complete sample of class I methanol masers; only 19 were known in this region previously, where we find 77. With the large sample of masers, we are able to compare the population against other star-forming maser species, in an effort to better understand methanol masers. | ... today * ATNF | ...

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... Meta Index / Home Page / Some functions for testing/debugging . This function returns .true. if the given pair of values agree with each other in the given precision (order), or .false. otherwise. LOGICAL(bool) FUNCTION isNearlyEqual(cmp, compared, precision) REAL, intent(in) :: cmp, compared ! or INTEGER INTEGER, intent(in) :: precision END FUNCTION isNearlyEqual . For the pair of the first two arguments, any combination of int8 , int16 , int32 , single and double is allowed. ...

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... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

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. You can compare any two versions of a file that is under the control of SCCS with the sccsdiff command: /usr/sccs/sccsdiff -r version -r version s. filename . Using this command produces a line by line difference between the two versions of the file. Results are shown in the same format as that produced by the diff command. Examples .

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... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

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... User Portal . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #8: February 2008 . ... Together with the regular ESO Call for Proposals, ESO invites users to submit proposals for observations at the Gran Telescopio Canarias (GTC) within the framework of the accession agreement of Spain into ESO. ... More details can be found at http://www.eso.org/ESOUserPortal/docs/faq.html and new users can create their User Portal account at http://www.eso.org/UserPortal ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 February 28 . The Sombrero Galaxy from VLT . ... FORS1 , VLT ANTU , ESO . ... Reasons include the Sombrero 's unusually large and extended central bulge of stars, and dark prominent dust lanes that appear in a disk that we see nearly edge-on. Billions of old stars cause the diffuse glow of the extended central bulge. ... About APOD | ...

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The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Directory of astronomy web sites. ... Listed Since October 25, 2004 . ... Web Site . http://123world.com/astronomy/index.html . ... Web . www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

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