... 50 Weirdest Objects . ... Observing springtime deep-sky objects with a large telescope . ... What is the baseline for determining the magnitude scale of celestial objects? Why do brighter objects have negative numbers? ... He called the brightest 1st magnitude and the faintest 6th magnitude. ... Also, to assign a magnitude to the brightest planets, the Moon, and especially the Sun, scientists would have to work with negative numbers. Get instant access to subscriber content on Astronomy.com! ...

... About ATNF overview . ... Mopra radio telescope . ... HI observations of southern LSB dwarf galaxies from the Karachentsev catalog . ... In this paper, we report on HI observations of newly detected nearby dwarf galaxies from the first part of the Karachentsev catalog which contains low surface brightness galaxies spotted on the POSSII. We performed HI observations of 220 galaxies using the 100-m radio telescope at Effelsberg, the NanУ?ay radio telescope, and the Australia Telescope Compact Array. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

SAI VO . ... ConeSearch . ... Access . ... CrossMatch your data with CAS catalogs . How to access the SAI CAS services . Catalogs access ( wsdl ) . ... Third release of DENIS data (20 September 2005) . ... The Naval Observatory Merged Astrometric Dataset . The DR5 data release of SDSS . Data release 6 of Sloan Digital Sky Survey catalogs . ... The Second U.S. Naval Observatory CCD Astrograph Catalog (UCAC2) . Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3) . ...

This section of library contains information about "classic" Star Catalogs. ... For a Henry Draper Catalog 272149 stars have received a total of 531,211 identifications in 7 сatalogs: . 270456 - in Astrographic Catalogue ( "Carte du Ciel", 4M), . 251943 - in Guide Stars Catalog (GSC), . ... A file with information on the components of 1788 of multiple systems in catalog HDEC (3681 component, or a combination thereof, with 4054 recording). ... A file with information about 21971 variable stars. ...

True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Acknowledgments Notes on Catalog . ... Galactic Supernova Remnants . Magellanic Cloud Supernova Remnants Links to Related Sites . ... Einstein Galactic SNR Catalog . ... Dave Green's Catalog of Supernova Remnants . ... This catalog displays X-ray morphology and spectra of galactic and Magellanic Cloud supernova remnants and some pulsars with associated diffuse emission. ... Chandra Supernova Remnant Catalog . ...

... For this purpose, catalog entries for stars within 12њx6њ region centered at 12h 20m right ascension and 33њ declination were examined. ... In Figure 1, the distribution in Johnson V magnitude of all Tycho catalog entries for stars within 12њx6њ region centered at 12h 20m right ascension and 33њ declination is plotted . ... Figure 1 : Distribution of magnitude in Johnson V. This is for the 510 stars from the Tycho catalog in a 12њx6њ area in the center of the northern survey region. ...

... l - the mean galactic longitude; . ... mul - the median proper motion along galactic longitude of the stars of the OB-association, in units of 0.001 arcsec year -1 ; . dml - the estimation of mul dispersion in the OB-association, in 0.001 arcsec year -1 ; . mub - the median proper motion along galactic latitude of the stars of the OB-association, in units of 0.001 arcsec year -1 ; . dmb - the estimation of mub dispersion in the OB-association, in 0.001 arcsec year -1 ; . ...

... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? Использование Hubble Guide Star Catalog . ... 04.05.2005 [16:54:48] ? ... Есть такой каталог Hubble Guide Star Catalog, который не используется во многих программах, но если его подключить то появляются очень много звезд, причем довольно ярких (6-7 величины) . ... R-Sky - грелки на окуляры и телескопы. Ваши телескопы больше не потеют! ... Ответ #1 : 04.05.2005 [19:38:49] ? ... Купить телескоп ...

... Галактики с полярными кольцами (ГПК) - уникальный класс внегалактических объектов, в которых наблюдаются внешние кольца или диски из газа, пыли и звезд, вращающиеся в плоскости примерно перпендикулярной к диску центральной галактики. ... Каталог основан на на результатах проекта Galaxy Zoo , в рамках которого волонтерами выполнена визуальная классификация почти миллиона галактик из Слоановского Цифрового Обзора Неба (SDSS) . ... Справа: контуры изображения SDSS для галактики SPRC-14. ...

The Arcetri Catalog contains measures and bibliographic data for all known H2O maser sources north of declination = -30 degrees (to be observable with the Medicina radiotelescope). ... This database is fully described in Cesaroni et al. ... A statistical analysis on the atlas has been carried (Palagi et al 1993). R. Cesaroni, F. Palagi, M. Felli, M. Catarzi, G. Comoretto, S. Di Franco, C. Giovanardi, F. Palla: A Catalogue of H2O maser sources north of delta=-30 , Astronomy and Astrophysics Suppl., ...

... NGC 2266: Old Cluster in the New General Catalog . ... Credit: Till Credner Sven Kohle , Bonn University Explanation: The New General Catalog of star clusters and nebulae really isn't so new. ... With an age of about 1 billion years, NGC 2266 is old for a galactic cluster. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: NGC catalog - NGC 2266 - galactic cluster . Publications with words: NGC catalog - NGC 2266 - galactic cluster . ... Star Cluster Dreams . ...

... Malkov, O. M. Smirnov . ... We present some current and future variations of our Guide Star Catalog Data Retrieval Software (GUIDARES). ... The GUIDARES software was born in 1991 (Malkov et al. 1992) as a PC-based tool for easy access to the Guide Star Catalog. ... Several applications arose (e.g., Malkov & Smirnov 1994b) where it was very useful for a program to be able to read the Guide Star Catalog easily, without the burden of sorting through its (very complicated) internal structure. ...

XEphem Forum Message . ... Post . ... Re: Re: Re: Xephem Catalogs . ... Post Message | ... Posted by Elwood Downey on December 21, 2000 18:37:34 UTC . ... Re: Re: Re: Re: Xephem catalogs - stevev - December 21, 2000 - 19:16 UTC . Re: Re: Re: Re: Re: Xephem catalogs - ecdowney - December 22, 2000 - 00:07 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... The catalog contains SAO number; the right ascension and declination with a B1950.0 equinox and epoch; annual proper motion and its standard deviation, photographic and visual magnitudes; spectral type; references to sources; the Durchmusterung (DM) identifier if the star is listed in the Bonner DM (BD), Cordoba DM (CD), or Cape Photographic DM (CP); component identification; The Henry Draper (Extension) (HD or HDE) number; and J2000 positions and proper motions. ...

Find Similar Abstracts (with default settings below ) . ... Translate Abstract . ... Bispectrum speckle interferometry and future long-baseline interferometry of the carbon star IRC+10216 . ... 2003SPIE.4838.1055B We present near-infrared (JHK) bispectrum speckle-interferometry monitoring of IRC+10216 obtained with the SAO 6m telescope. The present speckle observations covering baselines up to 6m provide important complementary informations for future long-baseline interferometry. ...

... RC0015+0503a . RC0015+0503b . RC0015+0501 . ... Radio source parameters . ... R.A.(B1950) Dec.( ... MHz] size["] flux[mJy] 00:12:48.50 +04:44:53.3 1425.0 10.0x4.6 75 00:12:48.90 +04:44:37.7 7.6x4.6 16 R.A.(J2000) Dec.( J2000) LAS Sp. Morphol. ["] index 00:15:22.62 +05:01:33.6 16.3 1.03 D,FRII 00:15:23.02 +05:01:18.0 ---------------------------------------------- # R.A.(J2000) Dec.( ... R.A.(J2000) Dec.( J2000) R.A.(B1950) Dec.( ... Last updated 11 Dec 2000 . ...

... The following sections contain the formal SGML definition of HTML 4.0. It includes the SGML declaration , the Document Type Definition (DTD), and the Character entity references , as well as a sample SGML catalog . ... Default DTD: . http://www.w3.org/TR/REC-html40/strict.dtd . ... http://www.w3.org/TR/REC-html40/loose.dtd . ... For better validation, you should check your document against an SGML parser such as nsgmls (see [SP] ), to verify that HTML documents conform to the HTML 4.0 DTD. ...

Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

ADC CATALOG HOLDINGS SHORT TITLE LIST March 29, 2002 (adapted from ftp://adc.gsfc.nasa.gov/pub/adc/archives/catalogs/key) Category 1: Astrometric and Positional Data - March 29, 2002 1090 Positions of 502 Stars in Pleiades Region (Eichhorn+ 1970) 1107A Washington Cat Visual Double Stars 1984.0 (Worley, Douglass 1984) 1131A SAO Star ...