Unknown numbers are usually represented by letters of the alphabet . ... However, different letters are also used, often hinting at the quantity they represent-- v for an unknown velocity, T for an unknown time, m or M for unknown masses and F for an unknown force. ... An example of case (#1) is the ratio between the length of a circle and its diameter, a universal constant appearing in many equations (for example, Kepler's equation in section (12a)), whose value to 11 decimals is 3.14159265359.. ...

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• Identities
• Plasma theories [Oulu]
• Vectors

... This year SSAU provides 1429 state-funded places for admission in all kinds and directions of educational programs. ... In addition, SSAU Admission Committee notes the substantial increase in interest from the foreign applicants this year. The number of applications from foreign countries has already surpassed last year's totals - 76 applications. Based on the experience of admission campaigns of previous years, SSAU expects summer 2014 to enrol about 150 foreign students in the university. ...

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• Зубарев Александр Петрович. Публикации

There are six possible ways of object description: . a) by number(s) . ... d) by list . e) by orbital elements . ... They should be introduced as year, month, day with tenth (e.g. 20021104.1). d) Computations are performed for all objects listed in the file whose path and name should be introduced into assigned data field. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ...

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• Head Litter of Minor Planet Names
• Keywords_89
• Keywords_109

... The absolute magnitude of the RCBs in the LMC and the small number of Galactic RCBs implies that they are very rare stars. Together with statistics for related stars, the total number of hydrogen-deficient stars in the Galaxy is estimated to be about 1000 ([ Warner 1967 ]). Whilst the luminosity of RCBs is similar to that of other low-mass stars as they evolve rapidly from the asymptotic giant branch to become white dwarfs, their frequency is much lower. ...

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• IAJ: Contents - Volume 24 Number 1
• IAJ: Past Issues
• Performance

... The Multiple Extension FITS (MEF) file interface is an IRAF library providing facilities for general file operations upon FITS multi-extension files. ... The Multiple Extensions FITS (MEF) interface consists of a number of routines to mainly read a FITS Primary Data Unit or an Extension Unit and manipulate the data at a file level. ... Read the FITS header of a MEF file that matches the EXTNAME or EXTVER keyword values or if not specified, read the extension number `group'. ... The header filename. ...

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• Three-dimensional Data Analysis in IRAF and ZODIAC+
• The Sociology of Astronomical Publication Using ADS and ADAMS
• Bias-Free Parameter Estimation with Few Counts, by Iterative Chi-Squared

... Insert date: . Day: . Month: . ... This CGI -script calculates a day of week of the given date, Julian date of Greenwich noon JD and extracts from the database indices of solar activity: Wolf number for the day W , monthly W m and yealy means W y of Wolf number for month and year of the date. The prediction of Wolf number (which was made in 1998 and, hence, lost actuality) is also presented. The database uses solar activity data got from server of National Geophysical Data Center . ...

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• Extended time series of Solar Activity Indices
• Pulkovo NEO Page: Estimation of Accuracy of the Observations
• Structure of the database files

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

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... Formulas are very similar to equations. Consider for now only equations with one unknown variable , denoted by some letter, which can be x but can also be different. An equation is an equality between two mathematical expressions containing the unknown number (maybe in several places), as well as other numbers which are known. ... For instance--if you multiply two sides of a formula by the same number, the result is still a valid formula, even if what you multiply contains unknown numbers. ...

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• Identities
• Elements of Algebra
• Vectors

. Full screen versions . Number - magnitude counts . Number - redshift counts . | Front page | . | << - Redshift wedge | Completeness estimates - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

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• Dunk Proceedings - 2dF QSO Redshift Survey (Number-Magnitude Relation)

... Thermogravimetric and differential thermal analysis . Electrode polarization measurements . ... Total conductivity, Seebeck coefficient and ion transference number measurements in controlled atmos . ... Processing of ceramic materials, electrode systems and electrochemical cells . Synthesis of solid oxide materials for high-temperature electrochemical applications . ... 4-probe DC conductivity measurements in controlled atmospheres, combined with Seebeck coefficient determination. ...

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• BRIZ: a vizualization program for Brillouin zone ? Fermi sphere
• Teams at the International Astronomy Olympiad
• International Astronomy Olympiad: Form for the short report of National

home membership . SEARCH ASP SITE: Match ALL words Match ANY word . General/ Technical Membership Form for new members . Renewal General/ Technical Membership Form . Gift Membership Form (New & Renewal) . Member Change of Contact Info . ... ASP E-mail Newsletters . ... Membership Number . ... Institution (leave blank if using home address) . Department (leave blank if using home address) . Street Address . ... New Phone . ... Previous Phone . ... home | ... membership | ...

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• ASP: Activities With Astrology: Questions and Analysis
• ASP: What Have We Learned About Halley's Comet?
• ASP: Good Astronomy Activities on the WWW

... Simulation Images . Simulations of convection in stars . Mach-numbers in a simulation of convection inтАж . ... Title: Mach-numbers in a simulation of convection in the sub-giant Eta Boo . Description: The mach-number is the local speed in units of the local sound speed, with values above 1 being super-sonic. ... Mach-numbers in a simulation of convection in the sub-giant Eta Boo The mach-number is the local speed in units of the local sound speed, with values above 1 being super-sonic. ...

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• Observational Techniques: Assignment 1
• Signal-to-Noise Ratio
• Research Interests

Download Izmccd (~2.7 MB). ... for 1-5 bytes is number of a numbered minor planet, . ... Positions 1-80 file "mpcreportiz.txt" are similar to positions of file "mpcreport.txt". 83-95 ? errors of unit weight, . ... If this tag is " 1 0 " , this record contains results of measurements of an image of object (approximation by "PSF"),? . ... 57-66 ? error in X (pixels), for first star in a multicentric image, for subsequent it is error in (distance between first star in the image and this), . ...

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... 101) Байки из Фидо (7) Литература (16) Листая страницы прошлого Выберите месяц Апрель 2016 (2) Март 2016 (4) Февраль 2016 (4) Январь 2016 (5) Декабрь 2015 (4) Ноябрь 2015 (3) Октябрь 2015 (5) Сентябрь 2015 (5) Август 2015 (5) Июль 2015 (5) Июнь 2015 (4) Май 2015 (8) Апрель 2015 (5) Март 2015 (4) Февраль 2015 (4) Январь 2015 (7) Декабрь 2014 (7) Ноябрь 2014 (4) Октябрь 2014 (5) Сентябрь 2014 (8) Август 2014 (8) Июль 2014 (6) Июнь 2014 (7) Май 2014 (11) Апрель 2014 ...

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• Stellarium: gTimeSpan Class Reference
• Stellarium: SphereParams Struct Reference
• Stellarium: RingParams Struct Reference

... IRAF Multiple Extensions FITS (MEF) Files Interface Nelson Zarate National Optical Astronomy Observatories Tucson, AZ 85719 (zarate@noao.edu) Abstract. ... If there are no values to match then `extver' should be INDEFL. 3.2. mef rdhdr gn (mef,group) Read extension number `group'. ... The header should have been read by now. mefo The output file MEF pointer returned by mef open. 4.2. mef copy extn (mefi, mefo, group) Copy a FITS extension given by its number `group' into an output file. ...

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• HSTPOLSIM (V1.00) --- April99 --- HSTPOLSIM (V1.00)
• ASNPHOT (Nov98) --- nictools --- ASNPHOT (Nov98)
• MARKBACK (Aug99) --- nictools --- MARKBACK (Aug99)

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

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• http://www.wdcb.ru/stp/data/solar.act/sunspot/YEARLY
• http://www.wdcb.ru/stp/data/solar.act/sunspot/info.ssn
• http://www.wdcb.ru/stp/data/sudden.com/STORM1_1868-1967/storm1_fmt.txt

... 1.7 GSC 084 Pulkovo Obs., 0.33 15 x 15' 1.0" 7 34 0.179 0.307 Normal Asgr. 3.0 UCAC 118 Slovakia, 0.57 14 x 10' 1.7" 3 12 0.090 0.145 Modra 3.3 USNO 127 Germany, 0.19 30 x 20' 2.4" 3 15 0.151 0.087 Bornheim 0.8 GSC 168 34 200 0.282 0.315 291 USA,Kitt Peak, 1.8 390 x 30' 1.0" 1 5 0.143 0.144 Spacewatch II 4.7 USNO 300 Japan, 0.5 78 x 78' 2.3" 7 36 0.420 0.447 Bisei Center 1.3 ACT 461 Hungary, JATE 0.60 28 x 19' 1.1" 6 22 0.124 0.153 Asteroid Surv. ... Polynesia 1.0 UCAC F85 Tiki Obs., ...

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• Accuracy of World positional CCD observations of the numbered minor planets

Preface The necessity of the preparation and edition of such intricate publication, that is the printed version offered to the reader, of geoinformation system including the chronological catalogue and evolutionary database of the global tropical cyclogenesis is dictated, in opinion of the authors, whole number of objective circumstances. ... It derivates the serious dissensions in the initial ('raw') information as well as in databases and archives of regional cyclogenesises. ...

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• Myasnyankin Andrey , Moscow Institute of Physics and Technology (MIPT),Space
• Matyushkin Evgeny, Space Research Institute (SRI)
• Proshin Andrej, Space Research Institute (SRI)

Pulkovo Photographic Plate Database . To find a certain plate, type its number, choose instrument and click button FIND Instrument: Normal Astrograph 26-inch refractor Plate number: . To find plates with a certain sky area: choose instrument, type coordinates (R.A. and Dec.) of the center of this area, type radius of this area, type (optionally) names of required objects, and click button FIND . ...

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• The Pul-3 astrometric catalogue (Second edition). Data access form.
• Pulkovo Database of Observations of Visual Double Stars

. Произведение и частное двух чисел . число A: число B: знаков после запятой: .

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• Model realization and some results
• Days of week
• Database of Optical Properties -- Level: subpage