... 2005 August 8 . Mars to Appear Normal This August . ... Regardless of numerous urban legends circulating, Mars will appear relatively normal in August. October is the best month to see Mars this year. ... As Earth catches up to Mars in their respective orbits around the Sun, Mars will keep rising earlier in the night. On 2005 October 30, Earth will have caught up to Mars and the planets will be the nearest to each other in their orbits -- this time around. ... About APOD | ...

... Sunspot Metamorphosis: From Bottom to Top . ... Credit: Dutch Open Telescope , Sterrekundig Instituut Utrecht Explanation: Sunspots -- magnets the size of the Earth -- are normally seen flat on the Sun. ... Here magnetic field lines can be clearly followed outward from the sunspot to distant regions. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: sunspot - Sun - magnetic field . Publications with words: sunspot - Sun - magnetic field . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 February 28 . The Sombrero Galaxy from VLT . ... FORS1 , VLT ANTU , ESO . ... Reasons include the Sombrero 's unusually large and extended central bulge of stars, and dark prominent dust lanes that appear in a disk that we see nearly edge-on. Billions of old stars cause the diffuse glow of the extended central bulge. ... About APOD | ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Archives . ... One realization of mine during the meeting was related to a cultural difference; therefore, there is no relation to any presentations during the 212th AAS in this post. ... I cannot cover all perspectives from both disciplines but I think there are two distinct fashions in practicing normalization. $$\frac{1}{N(\theta)}\int_{\Omega} f(x;\theta)dx=1$$ . ... This is my last posting on my first AAS . Tags: AAS , measure , measure theory , normalization , PDF , pmf . ... Chandra Blog . ...

... Circles are chemically normal stars, squares are Boo stars, the diamond is the possible Bp star V380 Ori A. Open symbols are stars with confirmed magnetic field detections. ... The photospheres of about 10-20% of main sequence A- and B-type stars exhibit a wide range of chemical peculiarities, often associated with the presence of a magnetic field. ... The incidence of Boo chemical peculiarities we find in Herbig stars is much higher than what is seen on the main sequence. ...

These observations are aimed at fully charactering FORS1 photometric system (UBVRI zero-points, color-terms and extinction coefficients) for the Tektronix 2048x2048 pixel CCD (24µm px) . To this aim, the two Landolt/Stetson photometric fields SA95 and SA101 will be observed on a number of epochs and at different airmasses during February and March 2007. ... SA101 . ... OBs for SA101 have to be observed during evenigh twilight (exceptions are expected for the second half of March) . ...

... The active time at each angular bin is the sum over frames of the active time contributions from all CCD pixels, within the node-specific telemetry window, which overlap the surface of the bin. ... The active time, per frame, of a normal pixel is the full frame integration time multiplied by the node-specific fractional exposure; bad pixels contribute no active time. ... If an event is rejected for this reason only, then its pixels remain normal in the exposure map. ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

... To avoid extensive numerical calculations in the statistical simulations, we treat the continuous evolution of each binary component as a sequence of a finite number of basic evolutionary states (for example, main sequence, red (super)giant, helium (Wolf-Rayet) star,     hot WD), in which stellar parameters significantly differ from each other. ... Figure 2: Schematic representation of the typical evolutionary track of a massive binary system with normal and compact star stages indicated. ...

... -----------------* *previously ID'd bowtie ^ previously un-ID'd bowtie (54223 is extremely faint, even in ratio) 45466 IU150701 UVIS UVIS-1 bias A 1.5 1 1 MEB2 0.0 UV16 -127.556 OS CSII08009042604_1 NONE NONE 0 20.19 293.34 45467 IU150702 UVIS UVIS-1 normal A 1.5 1 1 MEB2 10.0 UV16 -127.556 OS CSII08009042604_2 NONE NONE 0 20.19 293.34 45468 IU150704 UVIS ...

... Explanations of the Observation codes and GRT codes are available. ... V codes are for AO1 experiments W codes are for AO2 experiments VS experiment codes are VSOP Survey Observations VT Test/Calibration Observations EXPNO SOURCE FRQ Corr DOY DY: DATE UT RANGE #TEL TELESCOPES W071n J0745+10 L Mitk 6 We:Jan-06 10:00 - 17:00 6 UD SH KA AT MP HO W059e J0811+01 C Socr 7 Th:Jan-07 04:00 - 14:00 10 VLBA VS10a J0842+18 C Pent 8 Fr:Jan-08 13:00 - 18:00 6 CD HO UD SH KA MP VS11r J0909+01 C ...

This diagram illustrates the normal flow of text between parent and sibling boxes. A document window is shown, with 8 lines (numbered 1 to 8), each 24px high. Four lines of text are displayed, occupying line 1 through 4. In the following PRE element, each 24 pixel line is simulated by two lines, the second beginning with the appropriate number. The lines, as they appear in the image, contain: 1 Beginning of body contents. ... 3 End of outer contents. End of body 4 contents. ...

Title , Contents , Index . Nested lists can be made from an RTF document by using a different style for each level of indentation. The styles "bullet list 1" "numbered list 2" ... represent different levels of nesting. The only rule for use is that no levels of nesting are skipped. For example, a "ol 3" paragraph must not appear immediately after a "Normal" paragraph. It must follow a paragraph with a nesting level of 2 or higher. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

Plans are under way to create a new way of performing non-interactive observations which will be called auto-observing . ... Non-interactive observing with CIMA has for a long time been available with the use of CIMA command files. Contrary to normal command file observing which requires a command file with a set of commands to be executed sequentially, auto-observing will use a list of sources and a list of instructions on how to observe each of the sources. ...

... I normally begin by asking the class what they think would be different if the Moon didn't exist, or if the Sun were closer to Earth, or if a star exploded nearby. ... The winds would be much stronger. ... In using what-if questions in the classroom, it is worth bearing in mind that students extrapolating the effects of new scenarios will encounter two different situations: direct changes to the new version of Earth and indirect changes resulting from the direct changes. ...

... Observing . ... Home Education Workshops at Adorama Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama €аFor the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

The principal designation is the name, amongst the different possible names, chosen to identify the object because it is considered as the most reliable to cross-link to other databases or archives (eg. ... We recommend that authors of tables or catalogues identify their objects with the principal name, the celestial position plus possibly a name specific to the context (for example in a paper studying 3C sources use also the 3C name). ... HyperLeda . ...

. Subdwarfs . Metal deficient red giants in galactic field . Red horizontal branch stars . Blue horizontal branch stars . Extended horizontal branch stars . Stars inside globular clusters . W Vir type stars . IRAS-sources identified with peculiar supergiants . RCrB type stars . Sakurai's object . peculiar supergiant FG Sge .