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... 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 . ...

... What's New? Bad Astronomy . ... News . ... The questions was: "During a flight, I saw a round rainbow shaped like a doughnut. ... However, she said that all rainbows are actually circles, and that she could not find a name for this phenomenon. ... One is that rainbows really aren't full circles. ... Basically, rainbows are due to light getting bent ("refracted") inside of raindrops. ... It's called a "glory", and is formed in a somewhat different way than rainbows. ... 2008 Phil Plait. ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... We have constructed and investigated properties of metallicity function of disk stars with different ages, proceeding from the statistically restored real altitude distributions of stars at the solar galactocentric distance. It is shown that the metallicity distribution of stars in each age range is not of Gaussian form, but it may be considered as a superposition of two normal distributions centered at -0.2 and 0.0 dex. ...

... The publishers undertake translation into English, publication, and distribution of English-language papers of their journals (that is, the use of results of intellectual activity) only upon signing of copyright transfer agreements. ... To simplify interaction between author(s) and publisher, please submit copyright transfer agreements (in the Russian or English language) together with the manuscript to the editorial board of the respective journal. ... These agreements are contracts of adhesion. ...

... Популярный герой комиксов, один из символов свободной Америки и просто хороший парень Человек-Паук в очередной раз вступает в схватку со злом. ... Человек-Паук снова в строю! ... Сыворотка предназначена для глубокого питания и восстановления кожи, разглаживает морщины, препятствует появлению новых, способствует омоложению, тонизированию кожи, заживляет мелкие ранки, кожа становится мягкой, гладкой, подтянутой и сияющей. ... TOM TAILOR футболка 'tom tailor tee' - Tom Tailor - Tom Tailor . ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... 8, ``Celestial Mechanics'', 2002 Rotation theory of celestial bodies: dynamical relations of the pole motion and nutation Yu. ... Problem By construction Earth rotation theory the studies of the precession--nutation motion and pole motion are considered usually separately. ... The angle Q between the polar axis of inertia and axis of rotation is small (of order 10 \Gamma6 ). ... The perturbation theory of the Earth rotation has been constructed in the elastic Andoyer and angle--action variables. ...

SOLAR POLARIZATION 5 ASP Conference Series, Vol. 405, c 2009 S. V. Berdyugina, K. N. Nagendra, and R. Ramel li, eds. Fine-scale Sto chastic Structure of Solar Magnetic Fields V. Chertoprud, B. Ioshpa, and V. Obridko Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, Troitsk, Moscow Region, 142190 Russia Abstract. ... The exponent H is 0.5­0.7 for the active region magnetic fields and 0.1 for the background field. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

... right ascension (J2000) . declination (J2000) . 5-GHz total flux density . ... Correlated flux density (Jy) vs. projected baseline length plot . ... No image is produced. A comment is given in the VLBApls paper. Other VLBI references . 2.3 and/or 8.4 GHz: VLBI images are available in the USNO Radio Reference Frame Image Database (RRFID, Fey & Charlot 2000, ApJS 128, 17) . VLBApls reference: Fomalont et al. 2000), ApJS, 131, 95-183 . VLBApls home page . ...

Catalogue of eclipsing variables (CEV) is the world's principal database of eclipsing binary systems with available classification. CEV contains identifications, classifications, photometry, periods, eclipses data, spectral types, references and notes for 7179 systems. Format of the current CEV . CEV main table (~1.0MB) . ... List of systems, erroneously classified as eclipsing binaries in GCVS (they are not included in the CEV main table) Download all files as a single archive (~0.6MB) . ...

Legal notice on data usage. All data available on SMIS server are copyright © Space Monitoring Information Support laboratory (SMIS IKI RAN) or data provider. Neither the data themselves nor any materials obtained with the use of these data can be used for commercial purposes and/or in any mass-media or public information system without prior written permission from SMIS IKI RAN. ... Regarding the use of SMIS server data please contact: . info@smis.iki.rssi.ru . ...

... Members . ... The ATM's of Boston was founded in 1934 by a group of persons interested in assisting others in the art of optical polishing the craft of telescope making, and to learn together about the science of astronomy and the use of astronomical instruments. ... Mr. Jones introduced the club to Dr. Harlow Shapley at Harvard College Observatory. ... Regular shop activities resumed with the help of these "professional amateurs" and the club grew to 180 members. ... Club Newsletters . ...

... Вход в Астротоп + Напомнить пароль + Блог + ЗАРЯ + Exit . Сводная статистика сайтов каталога АстроТоп: . ... Если не нашли у нас известного Вам астрокосмического сайта, то, пожалуйста: . Новости проекта Астротоп: . 12 апреля 2012 года Подведены итоги XII-го конкурса "Звезды АстроРунета-2011 и Я" ( ЗАРЯ-2011 ) . ... За основу были взяты прошлогодние правила , + результаты публичных обсуждений на Астрофоруме , форуме Новостей Космонавтики и внутри команды Астротопа. ... Общие звезды . ...

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

... General Catalog of Variable Stars (GCVS database, Version 2015Sep) . ... Query forms . ... Enter The Type of the Variability : ACV ACV+ DSCT : ACV+ DSCTC ACV: ACVO ACVO: ACYG ACYG: AM AM/XRM+E AM: BCEP BCEP (B) BCEP +E BCEP +E: BCEP +EA/D BCEP + ELL : BCEP : BCEPS BE BE+ BCEP : BE: BLBOO BLLAC BY BY+UV BY+UV: BY: BY:+E: BY:+UV: CEP CEP(B) CEP: CST CST: CW CW: CWA CWA: CWB CWB: DCEP DCEP(B) DCEP: DCEPS DCEPS(B) DCEPS: DSCT DSCT (B) DSCT (B:) DSCT : DSCTC DSCTC (B) DSCTC +E DSCTC +E...

... Russian KOI8 . ... Radio galaxies and cosmology [in Russian]) . ... The book is devoted to investigations of powerful radio galaxies in the different wavelength ranges. ... The history of study for radio galaxies is given and the outlook on radio galaxy exploring is considered. ... The cosmological tests to check the Universe evolution parameters constructed on the observational data of radio galaxies are considered in details. ... List of detected misprints (in Russian). ...

General Catalog of Variable Stars (GCVS database, Version 2013Jun) . Samus N.N., Durlevich O.V., Kazarovets E V., Kireeva N.N., Pastukhova E.N., Zharova A.V., et al. ... General Catalogue of Variable Stars (Samus+ 2007-2012), VizieR On-line Data Catalog: B/gcvs . ... Query forms by files . The values in the input file must be separeted by comas or arranged in columns. ... Enter the file with the GCVS names: . ... Enter the file with the coordinates J2000.0: . ...