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.. ...

... CBET now has an M31 novae page , M33 novae page , and an M81 novae page . ... Also, see W. Pietsch's M31 (apparent) optical nova catalogue , M33 novae catalog , and M81 novae catalog Please note that I do not keep track of galactic novae . Nova M81 2016-04a? (= PNV J09560598+6900401 ), ATEL 8904 discovered 2016/04/02.876 by Kamil Hornoch and H. Kucakova . ... Nova M31 2016-03a? (= PNV J00421695+4059098 ), CBAT TOCP discovered 2016/03/01.721 by unknown . ... other extragalactic Novae from 2016 . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

Birthday in the USA . ... Hello, my name is Crystal. My family does not celebrate birthday's as big as we used to. Now that we are older we just have some family members over for some cake and ice cream and to open a few presents. When I was younger my friends & family would come over for a party and we would eat cake & ice cream and open presents. ... The average American family celebrates birthdays by having parties and giving gifts. ... My family celebrate birthdays by having parties. ...

... 2009 Total Solar Eclipse to China Meeting . ... Saturday, Oct 27, 2007 at 7:00 PM . ... This is a meeting for those signed up or on the waiting list for the ATMoB 2009 Total Solar Eclipes Trip to China. Joel Harris will be here to present an overview of the trip and answer any questions you have. ... See the 2009 Total Solar Eclipse page for more details on the trip. ... 2017 Total Solar Eclipse . Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Home Gallery Club Events AAA president Marcelo Cabrera presents AAA Amateur Astronomers Medal to Al Nagler of TeleVue Optics with AAA vice-president Susan Andreoli. ... A History of the First Forty Years of the Amateur Astronomers Association . ... AAA president Marcelo Cabrera presents AAA Amateur Astronomers Medal to Al Nagler of TeleVue Optics with AAA vice-president Susan Andreoli. by . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Stellarium 0.12.3 . ... Classes . ... ClassљList . ... TuiNodeColor Class Reference . ... voidљ . ... TuiNodeColor (const QString &text, QObject *receiver, const char *method, Vec3f defValue, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... virtual TuiNodeResponse љ . ... TuiNodeEditable (const QString &text, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... TuiNode (const QString &text, TuiNode *parent=NULL, TuiNode *prev=NULL) . ... virtual TuiNode *љ . ... virtual voidљ . ... parent = NULL , . ...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

... Заработанные деньги можно получать на кредитную карточку , на счет в банке или по почте чеком . ... Заслуживает интереса служба Western Union . ... Найти адреса пунктов в Вашем городе можно на сайте Western Union . Зайдите на сервер, найдите свой город, найдите ближайшее к Вам отделение и узнайте. Если есть телефон - позвоните и узнайте (на сайте есть телефоны пунктов). ... Кредитные карточки . ... Указав номер счета Вы можете получать деньги на этот счет и снимать их с помощью карточки. ...

... Especially necessary for an assessment of the calibration reliability of simulations of the different observing modes (still to be performed by the XMM-Newton calibration teams) was the closure of the loop between simulation and data analysis. This has been done complementing the SciSim release with the release of 90 specific SciSim calibration files included in the SciSim CCF tarfile , together with the corresponding Calibration Index file CCF_scisim.cif. ... Pages maintained by SAS librarian . ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

I. V. Pokrovskaya, E. A. Sharkov Tropical Cyclones and Tropical Disturbances of the World Ocean : Chronology and Evolution. ... Design principals, structure and performance characteristics of given chronological catalogues and evolutionary database are reported. Part II ( in general developed into the tables ) consists in chronological catalogues and evolutionary database of tropical cyclones (for 1983-2000) and tropical disturbances (for 1997- 2000) for all active basins of the World Ocean. ...

... Ace the GMAT(R) with the only official study guide from the creators of the exam With 25% brand new content, The Official Guide for the GMAT Review 2016 delivers more than 900 retired questions from the official GMAT(R) exam, complete with answer explanations and a 100-question diagnostic exam to help focus your test preparation efforts. ...

The most up-to-date information related to atmos 3.0 are collected here due to constantly increasing interest to MASS/DIMM processing software... atmos 3.0 is still beta , so the latest version is 2.97.5 (there is also 2.98.x branch which absorbs new features) . ... M' line: . ... free seeing and its relative error . ... dimm seeing and its relative error (if dimm data are present, zeros otherwise) . ... dimm turbulence power and its relative error (if dimm data are present, zeros otherwise) . ...

Dust around Herbig Ae/Be Stars: Porous, Cometary-like Grains? ... This brings up the question, which we try to answer here, of how the grain porosity affects the observational manifestations of the dust shells of HAeBe stars: the excess infrared emission, anomalous extinction in the ultraviolet, and the peculiar behaviour of colour indices and linear polarization during deep brightness minima observed for about 25% of HAeBe stars (UX Ori, WW Vul, etc). ...

... The purpose of the meeting was to review the current status of project development and to discuss working plan for international cooperation on the stage of preparation to the launch. 22 foreign specialists participated in the meeting representing Australia, Canada, China, Finland, Japan, the Netherlands, Ukraine, United Kingdom, and USA. ... To define personal content of proposed working groups and to develop plan of their activity for 2003 year (15 November 2002, chairmen of working groups). ...

... Space flight . ... Space Hotel . ... The program of deployment of small orbital station (SOS) consisting of a family of spacecrafts and module-spacecrafts represents a consecutive realization of flight scenarios with consecutive building up of functions. ... Scenario 1 - the regular and revised spacecrafts of class "Soyuz" - TMSC and MNMSC (MNMSC-cargo, MNMSC-MR) are used, pls. see fig fig.8 . ... The terms of transition to this scenario are determined by terms of readiness of one or another module....

... After arrival at the Rose Center, the township trip organizer, Michael Hritz, was able to secure tickets for the next space show in the New Hayden Planetarium in the top of the 87-foot sphere that is the centerpiece of the Rose Center. ... Does life exist anywhere else in the universe? ... Some examples shown were if the Hayden Sphere represented the size of the observable universe then a spheroid roughly the size of a beach ball represented the all of the galactic superstructure that has been...

Microsymposium 34, MS059, 2001 A HIPSOMETRICAL FEATURES OF THE LUNAR SURFACE FROM THE CLEMENTINE MISSION. ... The lack of extensive mare basalt fill in the South Pole ­ Aitken Basin, despite the thin crust in this region, suggests hemispheric compositional asymmetry in the deep lunar interior [1]. ... According to new data, the depths of Mare Imbrium, Mare Frigoris, Mare Fecunditatis, Mare Moscoviense are 0.5 km deeper than previous results indicated. ... 1994) The Clementine Mission to the Moon. ...

... To address the problem of point-source photometry in restored images Lucy (1994) suggested a two-channel photometric restoration method in which the points are represented as functions in one channel and the background, constrained to be smooth by an additional entropy constraint, in the other. ... In the new CPLUCY implementation the stars can be at arbitrary x , y sub-pixel positions but the entropy constraint on the background, used by PLUCY, is retained. ...