... Calibration and analysis of this observation posed very interesting challenges for the authors, in particular dealing with an exciting new instrument whose on-orbit calibration was not yet well defined. ... Five mosaic positions were observed during five consecutive orbits as well as observations for dark and flat calibration. ... Darks and flats had to be created from contemporaneous reference observations and problems within the calibration process had to be resolved. ...

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 08.11.2011 . ... All news ...

... 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 . ...

ARCSAT Call for Proposals for Shared-Risk Observing during May-Sept 2014 Suzanne Hawley, Director and Mark Klaene, Site Manager April 18, 2014 Updated June 14, 2014 We are happy to announce that the ARCSAT upgrade project led by APO engineers Joe Huehnerhoff and Bill Ketzeback is nearly complete. ... ARCSAT proposals will be accepted as text files using the ARCSAT proposal form (available from the website) which is similar to the 3.5m proposal form. ... Remember, the time is shared-risk! ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...

... Chilingarian, I., Melchior, A.-L., Zolotukhin, I. 2010: Analytical approximations of K -corrections in optical and near-infrared bands , MNRAS, v. 405, p. 1409 (also arXiv:1002.2360) . ... Calculator . ... calculate spectral energy distributions , K-corrections calculator , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

... Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Astro-ph за первую половину 2003 г." . ... Нейтронные звезды и пульсары . ... Авторы проекта обзоров astro-ph . ... Самые интересные препринты astro-ph января 2003 года по материалам обзоров Архива на сайте Scientiic.Ru " . ... Authors: Paul C Hewett et al. astro-ph/0307223 Скопление галактик, спрятавшееся за М31:наблюдения RX J0046.4+4204 на XMM-Newton (A Cluster of Galaxies hiding behind M31: XMM-Newton observations of RX J0046.4+4204) . ...

... Astronomy and Astrophotography - amateur tips and ideas from personal experience. ... CNES : CLEMENTINE data Server - Access to 1.8 million lunar images . ... Astrofili on the Web - Dr. Fabio Marino's CCD images and links. Astronomical Images - Deep-sky astronomical photographs. ... Astronomy Page - collection of amateur astrophotographs, along with observatory and Hubble images. ... Igor's Astronomy Page - with thumbnail links to images from observatories, including the Hubble Space Telescope. ...

ALBUM: time .to.turn Album: Time to Turn Artist: Eloy @ SONG : Through A Somber Galaxy on my voyage through vast space towards the heart of brilliancy, I must cope with the unknow face of a somber galaxy this universe, seemingly vacant and dead; shapeless and black as the night, appears all the same full of life , immensly rich limited by human sense, I can only ...

Alexey Rastorguev's links to DataBases and Catalogs: . ... Open Clusters and Galactic Structure База данных и каталог рассеянных скоплений Галактики . ... USNO: Astronomical Applications Каталоги и базы данных - проекты Морской Обсерватории США . ... HST Science Data Archive Архив данных HST . CFHT Data Archive Архив данных CFHT . ... USNO Recommended Star Catalogs (Zacharias N. et al.) ... USNO Star Catalogs Каталоги USNO . ... USNO-B1.0 Catalog Астрометрический каталог USNO-B1.0 . ...

... In the table given at a separate sheet enumerate in growing order (from 1 to 13) the size and the mass of each object: Milky Way Galaxy, Andromeda Galaxy, Neutron star, Electron, Mercury, The first satellite "Sputnik I", Venus, Pluto, Proton, Red dwarf, Black cat, White (Polar) bear, the Sun. ... Ashulia's coordinates are 23°53.6' N, 90°19.8' E. Draw pictures explaining your solution. ... The solution has to include an artistic picture with an image of the Bengal Tigerastronomer observing the star. ...

Polycyclic aromatic hydrocarbons in HII regions: correlation with metallicity . ... We have perfomed the aperture photometry of HII regions using infrared images from telescopes Spitzer and Herschel at passbands 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 m. Emission of PAHs are observed at passbands 3.6 - 8.0 m, 24 m is emission likely of hot small particles and finally large particles are responsible for emission at 70 and 160 m. We determine abundances of PAHs using model of Draine Li (2007) . ...

. F IGURE . 1. Distributions of RR Lyrae stars in distance (a)from the Sun and (b) from the Galactic plane.The shaded part of the histogram corresponds to stars with known proper motions.The curve in the left histogram is a power-law approximation for the growth of the number of stars with distance in the intial sample for R < 1.75 kpc. is the power-law exponent. The dip in the right distribution near Z ? 250 pc is due to selection effects. discussion in the text | next figure .

... Dept. for Physics of Stars&Galaxies . ... Investigation of physical characteristics and evolution of galaxies with active star formation, according to observations at telescopes in the world's largest X-ray, ultraviolet, visible, infrared and radio wavelengths of electromagnetic radiation. ... The analysis of stellar spectra considering deviations from LTE, the evolution and definition of the physical characteristics of stars of late spectral classes.. ... Stars . ... Star clusters of the Galaxy . ...

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

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 ...

... 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. ...

... Head of the Department of Emission-line Stars and Galaxies of SAI MSU . ... Structure and kinematics of galaxies . ... Strasburg Database . Hubble Telescope Archive . ... CFHT Archive . ... Chinese evolutionary synthesis Yunnan . Korean evolutionary synthesis Yonsei . Evolutionary synthesis database BaSTI . ... Electronic Journal "New Astronomy" . Electronic Astrophysical Journal . Electronic Astronomical Journal . ... Questions and comments send to Olga Sil'chenko olga@sai.msu.su ...