... 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. ...

Next: Critical Frequencies and Gravitational Previous: Extragalactic Gravitational Wave Background . The number of binaries per frequency decade per solid angle from a separate stellar system (galaxy or cluster of galaxies) is . ... For example, for the Andromeda galaxy M31 ( rad, ) one gets . ... If the angular size of the galaxy is less than the angular resolution of the detector, the critical frequency is independent of the angular resolution, . ...

... These images were provided to Winer Observatory by Mike Shade of Sonoita Hills Observatory as an example of the outstanding work done by local Sonoita amateur astronomers. ... All images on this page were taken with a 6-inch Astro-Physics aprochromatic refractor at Sonoita Hills Observatory using an SBIG ST-7 camera. ... Object: Galaxy Messier 100 . ... Date: March 2001 . ... All images on this page were taken with an f/5 Newtonian reflector at Sonoita Hills Observatory using an SBIG ST-7 camera. ...

... 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 . ...

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RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

... Научная панорама ? arxiv:0709.2048 Cherenkov Telescope Array . ... arxiv:0709.2048 Cherenkov Telescope Array: следующее поколение наземных гамма-обсерваторий (Cherenkov Telescope Array: The next-generation ground-based gamma-ray observatory) . ... Прочитать про это можно в статье, а можно на сайте проекта <A HREF=" http://www.mpi-hd.mpg.de/hfm/CTA/ ">CTA</A> (Cherenkov Telescope Array). http://xray.sai.msu.ru/~polar/sci_rev/168.html#arxiv/0709.2048 . ...

Тема : Галактики и прочие туманные пятна (наблюдения галактик и туманностей, интересные факты) .. Показать сообщение отдельно . ... Самая красивая галактика во Вселенной - спиральная Messier 74 Phantom Galaxy от Gemini North Telescope .. ... Астрономы решили выяснить, какая галактика является самой красивой во Вселенной (Universe) .. Победителем звездного конкурса и стала галактика M74 (NGC 628) .. ... По классификации галактик Хаббла M74 (Messier 74 Phantom Galaxy) имеет обозначение "Sc". ...

... ESO - Public Surveys . ESO - VISTA Surveys . ... Building VISTA: in its enclosure . image: IMG_1307-1536x2048.jpg . Credit: VISTA . ... VISTA Telescope: In the enclosure. image: IMG1815s.jpg . ... VISTA Telescope: In the enclosure. image: 05_ VISTA-Telescope-in-enclosure-1200x1600.jpg . ... Building VISTA: Lifting telescope top ring into the enclosure. image: 03_VISTA-lifting-top-of-telescope-into-enclosure-1600x1200.jpg . ... image: 04_VISTA-Telescope-in-factory-1405x1769.jpg . ...

Optical Observatories . ... National Optical Astronomy Observatories . ... Adam Mickiewicz University - Astronomical Observatory . ... Astronomical Institute and National Observatory of Athens . ... Jagiellonian University Astronomical Observatory - Scientific research here comprises radio and extragalactic astronomy, solar radio emission, active galactic nuclei, interstellar matter, galaxies, cosmology, variable stars and comets. ... National Radio Astronomy Observatory Home Page . ...

... Date : the picture was taken on December 14th 1998 . Location : Courroux / Ju (Switzerland) . Equipement : telescope Celestron Ultima 8 operating at F/D=6.3 camera CCD ST7 operating at high resolution autoguided mode . Exposures : 6 exposures of 10 minutes each . Pictures treatment : logarithmic . Software : Prism98 version 3.0 for acquisition and treatment of the pictures . ... 2822 Courroux . ... David Bishop Last modified: Wed Dec 16 13:55:05 EST 1998 ...

... 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 ...

... Bad Astronomy . ... Radio . ... Bitesize Astronomy . ... Think of a telescope as a bucket that collects light. ... So over the years, telescope makers have focused on making telescopes bigger and bigger. ... For radio telescopes, however, the size limit is much bigger. Many astronomical objects emit radio waves, and as it happens telescopes built to detect radio don't have the same stringent smoothness criteria optical telescopes do. ... But radio telescopes can get even bigger. ...

William Gershel (1738 - 1807). ... Gershel twice widened the Solar system and "turned" the Sun, proving its motion in the Universe. ... The Solar system became twice more. Besides he opened two satellites of Uranus (1789) with the reverse motion (1797) and two new Saturn satellites (1789). ... In 1783 Gershel discovered the Sun's motion in the Space and its direction. ... The 20 feet telescope of Gershel opened the nature of the mysterious "milky nebulas" which turned to be the star congestions. ...

VIII Russian-Finnish Symposium on Radioastronomy . ... Solar radio bursts study with high spatial and temporal resolution . ... Observational possibilities of RATAN-600 and some problems of solar activity . V. Bogod, V. Garaimov, N. Komar, L. Opeikina . ... Solar flare radio spikes . ... On the correlation of MetsДhovi solar mm-wave bursts and Type III metric wave observations . ... Database of the solar radio observations using RATAN-600 and Large Pulkovo Radio Telescope . ...

RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...

... XIX IAO . Optical Design . ... Telescope Type . ... Focal Length . ... Focal Ratio . ... Focal Length of Eyepiece 1 (mm) . ... Magnification of Eyepiece 1 . ... Highest Useful Magnification . ... Lowest Useful Magnification . ... Optical Coatings . ... Optical Tube Length . ... Total Telescope Kit Weight . ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

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... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...