... Previous: Why Indexing the Sky is Desirable . ... An alternative algorithm, proposed here, is based on covering the sky with pixels of approximately equal area, and assigning a unique integer to each pixel. ... For each table, the pixel code value corresponding to the central position (RA, Dec) of each source is computed and inserted into a new column called PCODE. ... This cannot be the primary index of a table since PCODE values are not necessarily unique: one pixel may contain more than one...

... Nova M31 2008-12b , ATEL 1886 , discovered 2008/12/30.207 by Koichi Nishiyama and Fujio Kabashima ; P60-Fast Transients In Nearby Galaxies (PDF) . Found in M31 at R.A. = 00h43m05s.03, Decl. ... Mag 19.4, Type Extragalactic Nova (References: CBAT M31 page ) . Nova M31 2008-12a (= PTF09hsd) (= Nova M31 2011-10e? ) (= TCP J00452884+4154095 ) (= Nova M31 2012-10b? ), (= PNV J00452885+4154094 ), (= Nova M31 2011-10e? ) ATEL 5607 , discovered 2008/12/26.481 by Koichi Nishiyama and Fujio Kabashima . ...

... The Impact of HST on European Astronomy . ... These range from the study of nearby planets, the processes of star and planet formation, the stellar and interstellar components of galaxies, the discovery that most, if not all, galactic nuclei harbor a massive black hole that profoundly affects their evolution, to the realisation that the universe as a whole is undergoing acceleration as a result of a yet unknown form of dark energy . ... Formation, structure and evolution of galaxies . ...

... Роман Евгеньевич Ильинский email : ilinsky_r@mail.ru . ... Ильинский Р. Е., Ровенская Т. С. Дифференциалы луча в оптической системе // Вестник МГТУ. ... 1998.- ... Roman Ilinsky , Gradient-index meniscus lens free of spherical aberration, Journal of Optics A: Pure and Applied Optics, volume2, number 5, pages 449-451, year 2000 . ... Ильинский Р. Е. Определение реальных габаритов пучков в градиентных оптических системах // Прикладная оптика -2000: Тез. докл. ... 2000.- ... ROMAN ILINSKY . ...

... I am a postdoc at the Arcetri Astrophysical Observatory in Florence (IT) as a member of the Galaxies, AGN, and Cosmology Group . My research is focused on the analysis of the physical properties of galaxies which host an actively accreting black hole in their center, the so-called Active Galactic Nuclei (AGN), and of the interplay between AGN and host-galaxy. Most of my research is carried out in the context of the XMM-Newton wide field survey in the COSMOS field. б  . ...

... Pilot Observations of the XXL-S from ATCA . ... As part of the follow-up observations from the ground a team of astronomers used the ATCA to image the XXL-S. About five square degrees was covered to 45 microJy rms sensitivity during pilot observations. ... Astronomers are now analysing ATCA observations of the full field, and are using it to study the formation and evolution of active super-massive black holes and how they relate to their host galaxies. ... today * ATNF | ... ATCA | ...

... Tonight's Sky . ... Astronomy for Kids . ... Year of Pluto . ... Chandra celebrates the International Year of Light . ... New images are being released to celebrate the International Year of Light 2015. ... This composite image combines data collected at X-ray wavelengths by Chandra (purple), ultraviolet by the galaxy Evolution Explorer (GALEX, blue), visible light by Hubble (green), and infrared by Spitzer (red). ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... Flux density at 1 GHz (/Jy): 2720 . ... Optical: Fast knots and quasi-stationary flocculli, with many filaments at large radii, and NE `jet'. ... ADS . ... 1991, ApJ, 373, 146. VLA at 1.4 and 5 GHz (1".3) for spectral variations. ... VLA at 1.4 GHz and 4.8 GHz (both 1".3), for polarization studies. ... VLA at 1.4 GHz and 4.8 GHz, for proper motion studies. ... ISO observations. ... 1999, ApJ, 518, 284. ... 2001, ApJ, 548, 800. ... VLA at 5 GHz (6".4?6".0) for H 2 CO absorption studies. ...

... Душанбе - а/л Вертикаль-Алаудин (машиной) - Алаудинские озера (радиально) - пер. ... Адамташ (1Б, 3875м) - оз. Пиала - Мутные озера - пер. ... 1Б, 4051м) - пер. ... В частности, в приведенный выше маршрут не вошли неудачные попытки прохождения перевалов Юбилейный (7 августа) и ВАА (10-12 августа). Отчет о походе в формате PDF. Ходовые дни: 29 июля - 10 августа ( 12 дней, 5 августа дневка ). ... Четыре файла с видео - ОДИН И ТОТ ЖЕ ролик, просто в разном качестве. ... 2013_Fany_HD.mpg . ...