... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

XEphem Forum Message . Forums: . ... Post . ... Filter Based On Catalogs? ... Post Message | ... Posted by Rob Knop on December 27, 2000 17:52:25 UTC . ... Re: Filter based on catalogs? - ecdowney - December 27, 2000 - 18:54 UTC . Re: Re: Filter based on catalogs? - rknop - December 27, 2000 - 20:53 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Puerto Rico is in a highly desirable location from a global geodetic VLBI point of view.€а It is located on the Caribbean plate, and it is near the equator.€а A geophysical goal of the next generation geodetic observing system is to have at least one observatory on each tectonic plate, and Arecibo will provide this with the implementation of the broadband signal chain on the 12m antenna.€а A second benefit of the site is to ...

... 2014 August 25 . Arp 188 and the Tadpole's Tail . ... Explanation: Why does this galaxy have such a long tail? In this stunning vista , based on image data from the Hubble Legacy Archive, distant galaxies form a dramatic backdrop for disrupted spiral galaxy Arp 188, the Tadpole Galaxy. ... One story goes that a more compact intruder galaxy crossed in front of Arp 188 - from right to left in this view - and was slung around behind the Tadpole by their gravitational attraction. ... About APOD | ...

... Recent Results . ... last 10 years in ADS) . in SAO press releases . ... observations database) . ... Last update: . ... Measurement of the dark halo shape in polar ring galaxies . Determining the mass of supermassive black hole in galaxy Mrk6 nucleus based on spectropolarimetric observations . The dust jets in the nucleus of comet 29P/Schwassmann-Wachmann 1 . ... New Polar Ring Galaxies . Traces of recent interactions in isolated Seyfert galaxies . ...

... 0.01 10 Prob./0.01 -1 a) -1 b) 10 10 -2 10 -2 10 -3 10 -3 10 -4 10 -4 10 -5 10 -5 10 -6 0.4 0.6 0.8 1 1.2 1.4 ER/Ebeam 10 -6 0.4 0.6 0.8 1 1.2 1.4 EL/Ebeam Snowmass 05 3 23 August 05 ­ David Strom ­ UO · Use very tight acollinearity cut for energy tune-up OPAL Prob. ... 0.01 1 10 10 10 10 10 10 -1 -2 -3 -4 -5 -6 0 0.2 0.4 0.6 0.8 1 1.2 EL / Ebeam 8.75 < R < 11.75 Snowmass 05 4 23 August 05 ­ David Strom ­ UO · Make detector uniform so that no fiducial cuts in etc will b e needed. ...

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

... The use of Astronomy in Research Based Science Education (RBSE), an NSF-funded Teacher Enhancement program, invites applications from middle- and high-school teachers interested in developing a research component for their science classes within the multi-disciplinary context of astronomy. ... 40 Years of Students Tracking Asteroids . ... Asteroids Finally Hit Project CLEA . ... LodeStar is a $32.8 million project dedicated to astronomy-oriented science education and research. ...

... Fig. ... One of these is a pink-coloured solar prominence, a tongue of incandescent hydrogen gas spewing out of the obstructed solar disc, visible at the 2 o'clock position. ... Such an eclipse was predicted to be visible from deep within the Asian continent on the 1st August 2008. ... A pink-coloured prominence was visible right from the onset (Fig. 1), while several streamers appeared to emanate from the obstructed solar disk throughout the event (Fig. ... Last Revised: 2008 September 8th . ...

... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... REGISTRATION . ... 119991, Leninski prospekt 53, Moscow, Russia . ... From radio to gamma rays results from space and ground based solar observatories . ... The Sun with high temporal and spatial resolution new look from SDO . ... Towards the Sun: InterHelioProbe, Solar Orbiter, PROBA-3, Solar Probe + . ... The Sun as a star: solar cycle and space weather . ... Head: E. DeLuca (SAO, USA), V. Kuznetsov (IZMIRAN, Russia) . ... June 1, 2011 (Wen) . ... Online publication of the workshop's program . ...

... Partly based on observations performed with radio telescopes of IAA RAS (Federal State Budget Scientific Organization Institue of Applied Astronomy of Russian Academy of Sciences). c . ... Partly based on observations with the 100-m telescope of the MPIfR (Max-Planck-Institute for Radio Astronomy) at Effelsberg . ... NRAO facilities . The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. ...

... Polar 2013 - . Polar Geophysics of Yamal: Observations, instruments, data bases . ... Nadym, October 21-25, 2013, RUSSIA . ... The program of the POLAR-2013 conference in Nadym will be devoted to following topics: . ... The International Conference ?Polar Geophysics of Yamal? is jointly organized by the Government of Yamal Region, The IZMIRAN (Troitsk), The Geophysical Center of RAS (Moscow), The Institute of Applied Geophysics (Moscow), The Arctic and Antarctic Research Institute (St.Petersburg). ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

Main Astronomical Observatory of NASU (GAO NASU, Kyiv, Ukraine) . ... Main Astronomical Observatory of RAS (GAO RAS, Pulkovo, Russia) . ... Institute of Astronomy of RAS (INASAN, Moscow, Russia) . Institute of Space Investigations of RAS (ISI, Moscow, Russia) . ... Institute of Applied Astronomy of RAS (IAA, St.Petersburg, Russia) . ... National Optical Astronomical Observatories (NOAO, USA) . ... Space Telescope Science Institute (STScT, USA) . ... Strasburg Centre of Astronomical Data . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... Общероссийская неделя "Астрономия на тротуаре" - 15-17 апреля . ... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? PIC 16F627 Based EQ-5 / CG-5 Dual Axis Hand Controller . ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

... Molecular beam epitaxy . Surface analysis . ... Molecular beam epitaxy and fundamental studies of semiconductor heterostructures (with quantum wells, quantum dots and superlattices) based on: . narrow gap III-V compounds for optoelectronic and electronic applications; . wide gap II-VI compounds, as well as ZnO, for visible range and UV optoelectronics and basic studies in the field of spintronics; . ...