... 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. ...

... Staff . ... senior scientist . Candidate of sci. PhD) . nnb @ sao.ru . ... len @ sao.ru . ... sta @ sao.ru . ... vlad @ sao.ru . ... leading scientist, header . Doctor of sci. ... vo @ sao.ru . ... vo @ sao.ru ( Oleg Verkhodanov ) ...

EVIDENCE FOR AGE DELAY BETWEEN THE FORMATION OF THE OLD HALO AND THE THICK DISK. ... The metallicity function of globular clusters of thick disk and old halo is shown on Fig.1Ю There are a two approximately the same normal distribution with well-defined gap between them with width [Fe/H] 0.2 dex. ... Metallicity function (left panel), and age distribution (right panel) for the old halo and thick disk globular clusters. ... Plots of V S against cos for the thick disk and the old halo samples. ...

Multiple Supernovae in the same galaxy . ... When looking at these images, you should note just how big these galaxies are. ... SN 2009as and sn2009gb images sub-page . ... LOTOSS discovered 2003hl , and a few weeks later JM Llapasset was taking an image of it, and he noticed a new star . ... Supernovae 2002cv and 2002bo in NGC 3190 2002cv was discovered by Campo Imperatore Observatory while observing 2002bo in IR. 2002cv was only visible in IR must likly due to it being behind a dust lane. ...

... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

... Previous: Substepping and its Application to HST Imaging . ... This is a preliminary report on an application of the co-addition technique based upon the Richardson-Lucy algorithm. The combination of high signal-to-noise ground-based images obtained with the ESO NTT using SUSI with high angular resolution HST FOC f/96 images gives new insights on the properties of galaxy cores and their potential time variability. Cores of galaxies are one of the main thrusts of present extragalactic research. ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

... 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. ... Star setting. ... Comet Lovejoy. ... Radio- (operating wavelength is about 21 cm) and optical (operating in the light visible to the naked eye) telescopes have been used to study an astrophysical object. ...

Trudy GAISH, vol. LXV, 1996 . Abstracts . The global distribution of average (5 O x 5 O ) depths . of Mohorovicic discontinuity on the Earth . ... Such analysis allows detecting whether the sources of the largest anomalies reside within the Earth's core. This is possible if the limit depths of the sources exceed the depths of the core-mantle boundary. ... by Pasinok S.L. Influence of the Earth’s cover on the polar free oscillation of the Earth’s inner core is considered. ...

... Program of the Course of Radio Astronomy . Moscow State University , Physics Department , Astronomy Division , 4 th year, 60 hours in total) . ... Molecular maser emission. ... The emission of the interstellar neutral hydrogen. ... Pacholczyk, A. G. Radio Astrophysics, W. H. Freeman & Co., ... Frontiers of Astrophysics, Avrett, E. H., ed., Harvard University Press, Cambridge, Mass., ... Kaplan, S. A., Pikelner, S. B. The Interstellar Medium, Harvard University Press, Cambridge, Mass., ...

Blackholes2 Forum Message . ... Distant Galaxy Red Shift Caused By Time Passage Variation. ... If I were falling toward a neutron star or a black hole, a distant galaxy would seem to be accelerating toward me? ... And apparent receding distant galaxies with a red shift. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Sternberg Astronomical Institute , Moscow University . ... Present edition unites two parts of Catalogue of interacting galaxies by B.A.Vorontsov-Velyaminov: the first part (Part 1) containing 355 systems was published in 1959 [1] and the second one (Part 2) with 497 objects - in 1976 [2].Thus two published parts of Catalogue include 852 interacting systems. ... All new of them (1162 by number) were taken from the comments to the galaxies in Morphological catalogue by Vorontsov-Velyaminov et al.[ ...

... Bad Astronomy . Misconceptions . ... Mad Science . ... The Nine Planets . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... Brown Dwarfs . ... Mr. Hazlewood and many others on the web claim that Planet X is a brown dwarf. ... Ms. Lieder claims that Planet X has a mass something like 5 times the Earth's mass, which is more like a normal planet than a brown dwarf. ... Conclusion: Doomsayers claim Planet X is a brown dwarf (or even a massive planet). ...

... 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 . ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution Large-Scale Structure of the Universe Big Bang Cosmology Why is Pluto no longer a planet? ...

Phobos . Mars I . Phobos [FOH-bohs] (fear) is a moon of Mars and was named after an attendant of the Roman war god Mars. ... Phobos shows striated patterns which are probably cracks caused by the impact event of the largest crater on the moon. ... The striking feature in this image is the giant Stickney crater. ... Courtesy NASA) . ... Because Phobos is only 28 by 20 kilometers (17 by 12 miles), the moon must have been nearly shattered from the force of the impact that caused the giant crater. ...

... Probing the Universe with galaxy clusters: New windows from new technologies . Dr Mark Bautz . ... A key to this progress has been the study of these objects using telescopes operating at millimeter, visible, infrared and X-ray wavelengths. ... His current research interests concern new X-ray imaging detector and observational studies of clusters of galaxies. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Classes . Files . ... GuideProbe . ... tcc::GuideProbe Class Reference . include < inst.h > . ... std::tr1::array < double, 2 >љ . ... does this probe exist? ... std::tr1::array <double, 2> tcc::GuideProbe::ctr . ... bool tcc::GuideProbe::exists . ... std::tr1::array <double, 2> tcc::GuideProbe::maxXY . ... std::tr1::array <double, 2> tcc::GuideProbe::minXY . ... double tcc::GuideProbe::rot_gim_ang . ... std::tr1::array <double, 2> tcc::GuideProbe::rot_gp_xy . ...

... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...