Surface-layer turbulence measurements with lunar scintillometer Idea of the method Hardware & software Campaigns & results New horizons Andrei Tokovinin NOAO/CTIO Kislovodsk Oct. 2010 1 Turbulence measurement from scintillation of extended sources Moon's angular diameter =0.5 deg Correlated scintillation for b > z z=10m b=0.1m z=100m b=1m z=10km b=100m BI(b) = W(b,z) Cn2(z)dz Weighting functions zW(z) for b=0...0.4m and d=1cm 2 Kislovodsk Oct. ... 2010 12 Paranal: October 14, 2008 Kislovodsk Oct. ...

... The relation between the metallicity of F stars and their loci on the c 1 , diagram is investigated for a semple 2000 galactic-disk F stars having uvby data. ... По данным uvby -фотометрии, для двух тысяч F-звезд диска Галактики изучена связь между их металличностью и положением на диаграмме c 1 , . ... Если считать, что распределение металличности звезд диска в диапазоне lg Z/Z (или [Fe/H]) от -0.5 до +0.3 непрерывно, то Y 0.02. ...

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. ...

... Contents of the Tycho Catalogue Over view of the Tycho Catalogue: The Tycho Catalogue provides astrometr y (positions, parallaxes and proper motions) and two-colour photometr y (in B T and VT ) for more than one million stars brighter than VT = 11.5 mag. ... Stars in ver y dense clusters and other dense fields thus leaving the resulting Tycho Catalogue incomplete in such regions `R' in Field T42). ... The number of non-Hipparcos stars with Tycho Catalogue parallaxes larger than 40 + 4 mas is 1245. ...

... The function is accessible, if the file with the image is open, and Ю identification of a star field is made. ... a) Load a first image by the command " Open ", and others by the command " Open +". b) Make an identification of the field. c) Open the menu " File ", select " Next " or press . ... It is necessary tree or more images. a) Load the first image by the command " Open" , and others by the command " Open + ". b) Open the menu " Marking ", select "Detect moving objects" or press - . ...

Determination of short-term proper motions of fast stars with Pulkovo Normal Astrograph. ... Khovritchev Laboratory of Astrometry and Stellar Astronomy of the Pulkovo Observatory, RAS, Saint-Petersburg Observations Normal Astrograph (D/F=33 cm/3.5m), CCD camera: S2C, FOV = 18x16 arcmin, Pixel size 900x900 mas Determination of the new proper motions of 413 LSPM stars 1 epoch : CCD-surveys and catalogs -- M2000, CMC14, 2MASS, SDSS DR7 2 epoch : CCD-observations with the ...

... Калибровка снимка - это удаление из него паразитной информации, которая включает в себя: темновой шум, горячие пиксели, шум считывания (ток смещения), а также тени от пыли на матрице и оптике. Для калибровки снимка нужно подготовить снимки с паразитной, т.е. нежелательной информацией. В первую очередь нам нужно получить мастер-кадр шума считывания (ток смещения), на западе снимок шума считывания называют Bias или Offset . ... Уровень темнового шума сильно зависит от температуры матрицы. ...

... If the number of octets is greater than the number of characters sent, the modems probably used MNP5 compression on an already compressed file, and the result was expanded data. ... Disconnect Reason: Possible reasons the modem hung up are as follows: A Rootless Tree: The modem received an invalid V.42 bis (compression) frame. ... Extra Stepup: The modem received an invalid V.42 bis (compression) frame. ... Invalid Codeword: The modem received an invalid V.42 bis (compression) frame. ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

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. ...

... Бренд: RST . ... title=' Ravensburger Пазл Красивые лошадки 2х12 элементов - RavensburgerПазл Красивые лошадки 2х12 элементов ' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/ Паззл Ravensburger : От частицы к частице - все высшее качество Отсутствие двух одинаковых деталей обеспечено использованием вручную изготовленного ... Бренд: Hansa, Вид мягкой игрушки: попугай, Размер: 17 см . ... Размер: 46 . ... Размер INT: 44 . ...

Prevalence of Earth-size planets orbiting Sun-like stars Erik A. Petiguraa,b,1, Andrew W. Howardb, and Geoffrey W. Marcy a a Astronomy Department, University of California, Berkeley, CA 94720; and bInstitute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 Contributed by Geoffrey W. Marcy, October 22, 2013 (sent for review October 18, 2013) extrasolar planets | ... Such errors will be smaller than the Poisson uncertainties in the occurrence of Earth-size planets in long period orbits. ...

MAJOR MAGNETIC STORMS 1868-2005 ACCORDING TO THE AA* CRITERIA For a plot of sunspot number and aa Yearly Indices 1868-2005, see ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/AASTAR/aasspot.gif A simple global index of magnetic activity is produced in France from the K indices of two nearly antipodal magnetic observatories in England and Australia. ... Daily average AA may be derived similarly to Ap. ... An AA* index has been derived that is the counterpart of Ap* but is available for a longer span of years. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Май 1998 . ... Дата: 07 мая 1998 (1998-05-07) От: Alexander Bondugin Тема: National Space Society Calls for President to Act on ISS Привет всем! ... Дата: 07 мая 1998 (1998-05-07) От: Alexander Bondugin Тема: Most Powerful Explosion Since The Big Bang Challenges Gamma Ray Burst Subject: Most Powerful Explosion Since The Big Bang Challenges Gamma Ray Burst Привет всем! ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . SkyMap Pro v.11 . ... Поиск . Сообщения за день . ... Сообщений: 1,633 . ... Astronomy LC - SkyMap Pro 11.0.4.rar". ... Отправить личное сообщение для Viktor Tsepaev . Найти еще сообщения от Viktor Tsepaev . ... Сообщений: 157 . ... Отправить личное сообщение для morzE . ... Viacheslav . ... Отправить личное сообщение для Viacheslav . Найти еще сообщения от Viacheslav . ... Сообщение от Viacheslav . ...

... Printed in U.S.A. ( FACE­ON GALAXIES NGC 524 AND NGC 6340 : CHEMICALLY DECOUPLED NUCLEI AND INCLINED CIRCUMNUCLEAR DISKS O. K. SILоCHENKO1 Sternberg Astronomical Institute, Moscow, 119899 ... Moscow Branch ; olga=sai.msu.su Received 1999 September 1 ; accepted 2000 May 2 ABSTRACT The central regions of the early­type disk galaxies NGC 524 and NGC ... 2, 2000 FACE­ON GALAXIES NGC 524 AND NGC 6340 743 emission line [N II] j6583, which is strong in the centers of NGC 524 and NGC...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... August 5, 9:00 a.m. EDT : Prospector definitely impacted the Moon! ... On March 5th, 1998, however, the Prospector scientific team announced their big result: they had measurements that indicated there might be frozen water on the Moon. ... So the Prospector impact might make a splash big enough to see. ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! ...

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...

... Maps of six sources (0420+022, 0420-014, 1308+326, 1345+125, 1803+784, and DA 193) obtained with milliarcsecond resolution are presented and discussed, together with their broadband (1­22 GHz) spectra obtained on the RATAN­600 radio telescope at epochs close to those of the VLBI observations. ... The image (Fig. 5) shows that the source structure at 18 cm is compact, consisting of a VLBI core and two jet components, with the outer component lying 5 mas (30 pc) to the northwest of the core ( = 54 ). ...

... 365­368, ISSN 1055-6796, Photo copying p ermitted by license only, c Cambridge Scientific Publishers Distance scale calibration from kinematic analysis of an ensemble of the galactic planetary nebulae V.V. Akimkin1, I.I. Nikiforov2, A.F. Kholtygin 1 2 2 Astronomical Institute of the Russian Academy of Sciences, Russia Sobolev Astronomical Institute of St. Petersburg State University, Russia Received 1 February, 2012 We study the kinematics of ensembles of planetary ...