... Algorithm for selection of defining sources 1. ... Take the common part of the "minimum" sets Make 1. and 2. for both global solution and time series and obtain common set 319 common sources for "global solution sigmas" case Comparison of IAA list, and 380 sources OPA list, set of defining sources ICRF1 and combined set Solution · Given catalogue RA, DE, arbitrary catalogue ra, de. dRAi RAi ra i Algorithm can be improved with additional condition Sum over all deltas less than 1 degree. ...

Hourly values of parameter foF2 (F2 layer critical frequency) The description of letters in the tables of parameter foF2 A blanketing. ... C non-ionospheric (equipment). D above upper frequency range of equipment. E below lower frequency range of equipment. F frequency spread. ... K particle E layer. L no sufficiently defined cusp between F layers. ... N superimposed layers. O measurement refers to o component. ... Q range spread. R attenuation near critical frequency. ...

I have dropped the differentiation of HTML into a sequence of conformance levels. ... This (and upward compatible specifications) define the Internet Media Type (RFC 1590) and MIME Content Type (RFC 1521) called "text/html". The type "text/html" accepts the following parameters: . ... Character sets . The charset parameter (as defined in section 7.1.1 of RFC 1521) may be used with the text/html content type to specify the encoding used to represent the HTML document as a sequence of bytes. ...

... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...

Google doc v5.1 RadioAstron International Science Council Tsargrad Hotel (Boyarsky room) Breakfast starts at 8am Monday, June 18 ( Tsargrad hotel) 10:00 N. Kardashev: Welcome 10:15 K. Kellermann: Goals of meeting and approval of agenda 10:30 Introductions of members and guests 10:45 RISC Terms of Reference Supporting documents: RISC ToR draft 11:30 Break 12:00 M. Popov: SRT in-orbit tests and basic parameters 12:30 Y. Kovalev: Fringe Search: ...

Modified 11 April 1999. The last modifications concerns to the new ground tracks selection on the base of the more wide list of the INSPIRE particpants. ... The range value was changed from 2 deg to 4 deg for the distance between lat/lon of the graund track and place of the INSPIRE members. Plots of predicted tracks under USA and Europe 11 April 1999 . April, 17, 1999 (USA) . April, 17, 1999 (EUR) . ... 11 April 1999 . ... place . ... Back to the IKI Satellite Situation Center (SSC) . ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...

... The Moon . Photo by . ... video still . ... Tyrone Manhoff . ... Mike Grilley . ... The Moon (again) . ...

The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

... Home Lectures Lecture Series 2015-2016 . ... Lecture Series 2014-2015 . ... Beyond New York City . ... The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the public. ... Amateur Astronomer Association is pleased to announce we will be offering select, limited reserved seating for current AAA members for the Friday, January 8, 2015 AAA Lecture entitled Robert Nemiroff ?2015 Astronomy Picture of the Day?. ...

Euro-Asian Astronomical Society . The International Astronomy Olympiad . ... On the basis of the present Founding Statutes the Coordinating Council of the International Astronomy Olympiad elaborated and if necessary replenishes the "Acting Statutes/Regulations on International Astronomy Olympiad of School Children" which are approved at the meeting of authorized representatives from the founding organizations and participating states held every year during the Olympic period . ...

... ASRAS Board Members . ... Site . ... ASRAS Board Positions . ... President - . ... The president has many responsibilities like running monthly meetings, running the monthly board meeting, representing ASRAS at local events like star parties, planetarium events, RMSC events, the monthly newsletter presidents message, etc .. ... The Vice Presidents position is mainly to assist the president and back them up if they cant make a major function like a general meeting or write the newsletter pres message...

... CV & PUBLICATIONS | ... Nicholls, DC, Dopita, MA, Sutherland, RS, Jerjen, H, & Kewley, LJ " Metal-poor Dwarf Galaxies in the SIGRID Galaxy Sample. ... Nicholls DC, Jerjen, H, Dopita MA, & Basurah, H. (2014) " Nebular Metallicities in Two Isolated Local Void Dwarf Galaxies ", Astrophysical Journal 780, 88 * . ... Sweet SM, Drinkwater MJ, Meurer G, Bekki K, Dopita MA, Kilborn V, & Nicholls DC, " CHOIRS H I Galaxy Groups: The Metallicity of Dwarf Galaxies" , (2014) Astrophysical Journal , 782, 35 * . ...

... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...

tranback -- Transform an X,Y position from output to input pixel position using the same conventions as drizzle tranback xout yout . xout = 400 [real] . ... The X dimension of the input image (this is used to determine the centre which is the origin of the transformations). (nyin = 800) [real] . ... If "output" the input image center is mapped to the center of the output grid, rotated about that center and then shifted along the grid of the output image. ...

... M100: A Grand Design . ... Credit: NASA Explanation: Majestic on a truly cosmic scale, M100 is appropriately known as a Grand Design spiral galaxy. A large galaxy of over 100 billion or so stars with well defined spiral arms , it is similar to our own Milky Way . One of the brightest members of the Virgo Cluster of galaxies , M100 (alias NGC 4321) is 56 million light-years distant in the spring constellation of Coma Berenices . ... Publications with keywords: M100 - spiral galaxy . ...

... The zeta function of the classical monodromy transformation of the germ $f$ is a topological invariant of it. Let us consider a parametrization (uniformization) of the curve $(C,0)$. The order of a function on $(C,0)$ as a function in the uniformization parameter defines a decreasing filtration on the ring of functions on the curve singularity. It appears that the Poincare series of this filtration (considered as a rational function) coincides with the zeta function mentioned above. ...

... Forum . ... Recent Topics . ... MAO main . ... Information on IAU Commissions and New Members . ... Тема: Information on IAU Commissions and New Members . Dear IAU Member, . ... please see: . ... Members, please see: . ... The newly accepted IAU Members were recently invited to consider the . ... both the previous IAU members and the new Members, 2,517 individuals . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ... MAO NASU . ...

. To see a Russian version of this page, click here . (Professor, Director of SAI. Graduated from the Moscow State University (MSU) in 1964, Ph.D. 1967, MSU, Dr. of Science 1975, MSU) . A member of IAU and EAS, IAU committees No 42, 27. Fields of interest: Stellar astrophysics, close binary systems, inverse problems in astrophysics. Send your mail to: cher@sai.msu.su .