The TCC supports the following coordinate systems: . ICRS: the current RA/Dec standard. The default date of observation is J2000. ICRS is FK5 J2000 (for all practical purposes) but has no date of equinox . ... The date specifies both the date of equinox (usually J2000) and the date of observation . ... The date specifies both the date of equinox and date of observation . ... Warning: the following coordinate systems are rarely used (except Mount for parking the telescope). ...
Blog . ... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . Mad Science . ... Site Info . Search the site . ... RELATED SITES . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Here are the questions and answers I have from 1998. ... Is it possible for a giant black hole to crush under it's own gravity? ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...
... The crucial problem that limits our knowledge of our own galaxy, and prevents us from working out how and when it formed, is our inability to measure direct distances to distant stars, and to determine their proper motions. If we could get accurate parallaxes and proper motions for every star in the galaxy, we'd have things completely wrapped up, and surely we'd be able to figure out galaxy formation. ... Luckily, this is just what should be achievable using space interferometers. ...
... space flight . ... Twisted tale of our galaxy's ring . The Herschel Space Observatoryт??s view reveals the entire ring at the center of the Milky Way for the first time. ... In a strange twist of science, astronomers using the Herschel Space Observatory have discovered that a suspected ring at the center of our galaxy is warped for reasons they cannot explain. ... New observations from the Herschel Space Observatory show a bizarre, twisted ring of dense gas at the center of our Milky Way Galaxy. ...
Configuration Files | ... Options | ... This version of Apache includes changes allowing it to run on IBM's EBCDIC-based TPF (Transaction Processing Facility) operating system. ... It is passed to Apache through the ZINET XPARM field since ZINET is the only way to start the server on TPF. A third group of options apply to both the informational displays (ZFILE) and running the server (ZINET XPARM): -d, -D and -f. The rest of Apache's options are either not applicable or are not supported on TPF. ...
... Fractals and multifractals are used to model hierarchical, inhomogeneous structures in several areas of astrophysics, notably the distribution of matter at various scales in the universe. ... It is pointed out that some of the difficulties regarding the convergence rates of algorithms used to determine scaling exponents for a fractal or multifractal, are intrinsically related to its texture, in particular, to its lacunarity . ... Structures with fractal characteristics are important for astrophysics...
... General measurements: that we've made.. that don't fall into other categories. tests on dummy load . ... 150928 : on 5 foot balun section . ... 150603: pictures of dipole 3B (tx4) arcing damage. 150915: pictures of dipole 3B (tx4) arcing damage (2nd occurrence) . ... 8 Mhz dipoles tx1-6 = D2a,D2b,D4a,D4b,D6a,D6b There is a 100 kw dummy load that can be attached to the output of a transmitter. ... dummy load tx4: . ... plots of curve and fit: tx4 calibration curve with fit (.ps) ( .pdf ) . ... pdf ) ...
... Please Sign Our Guestbook . ... Signed on Tuesday, October 13, 2015 at 23:34:22 CET . ... Ech war haut mat den AAL op Dippech observeieren,an etwar super Ineressant. ... Eeschler, Luxembourg . ... ech hunn gester Owend ( Samsdes den 15. august 09 geint 22 Auer )zu Warken eppes gesinn, wou mir eis iwerluecht hunn wad dat dann elo richteg war: Dei eng waren der Meenung et wДr eng Sternschnuppe gewiecht, anerer hunn gemengt et wДr een Komet oder Meteor gewiecht. ... Great site . ... Hey, great site. ...
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers dУ?cryptУ?es pour vous . ... Accueil Lire/Voir/Ecouter Lire/Voire/Ecouter . ... Il y a 88 constellations dans le ciel, mais ce petit ouvrage ne prУ?sente que les 40 plus accessibles. ... Ce livre prУ?sente en des termes simples ce qu'est la vie, oУЙ on la cherche dans l'espace, les fantasmes autour des ovnis et des martiens, et les chercheurs qui ont У?tudiУ? sУ?rieusement ces questions par le passУ?...
Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...
... Уран - седьмая планета от Солнца и третья по размеру. ... Кольцо Урана рассмотреть вообще очень сложно, обычными оптическими средствами здесь не обойтись. ... Уран - старинное Греческое божество Неба, самый ранний высший бог, который был отцом Хроноса (Сатурна), Циклопа и Титана (предшественников Олимпийских богов). ... Как у Земли, Юпитера и Сатурна, у Урана есть магнитный хвост, состоящий из захваченных полем заряженных частиц, растянувшийся на миллионы километров за Уран от Солнца. ...
To infinity and beyond NASA's robotic and human lunar exploration strategy gets under way at JSC by Linda Singleton The lunar landings of the Apollo missions are often considered the most significant technical achievement of humankind since the beginning of recorded history. ... More than 100 NASA employees, contractors and space enthusiasts attended the NASA Robotic and Human Lunar Exploration Strategic Roadmap Committee public meeting held recently at Space Center Houston. ...
... What's a Population . ... It varies, ecologists use the word "population" in several ways; typically a "somewhat isolated collection of individuals." ... There are two "basic models" of population growth. Exponential growth, and logistic growth. ... In logistic growth there are "density-dependent" changes in growth rate that REGULATE population growth. ... The exponential and logistic models treat all individuals in a population the same; but we know that baby's don't reproduce but adults do! ...
... Sizes of spectra The number of spectra that are `spoiled' by overlaps depends on the contrast ratio reached by the MEMS device, the area on the sky covered by an individual spectrum and on the number density of potential spoilers at a given magnitude. ... 4-- NIRSpec contrast and confusion limits 1 low resolution 0.8 0.6 0.4 0.2 0 1 hi resolution 0.8 0.6 0.4 0.2 0 20 Figure 3: Probability that spectra are contaminated at the Galactic pole as a function of the magnitude of the target galaxy. ...
STAR FIELDS Newsletter of the Amateur Telescope Makers of Boston Including the Bond Astronomical Club Established in 1934 In the Interest of Telescope Making & Using Vol. ... 1 January 2002 This Month's Meeting.. ... In this talk, Dr. Kwok will summarize our modern understanding of planetary nebulae and show how research on planetary nebulae has impacted other fields ranging from the mapping of dark matter to new insights into the origin of life. ... Tom Calderwood- Fun at the New Year's Eve Party.. ...
ELT MASS/DIMM instrument for atmospheric turbulence measurements. ... 1.2 Principal geometry of MASSDIMM device . ... The next chapter is a guide for alignment of the optical scheme elements the op eration which is mandatory after the device assembly or while installing the device on the telescop e. Exit pupil optics tuning (MASS segmentator and DIMM mirrors), fo cusing and lateral p ositioning of the Fabry lens, checking the entrance pupil p osition are the sub jects of particular attention. ...
[
Текст
]
Ссылки http://curl.sai.msu.ru/mass/download/doc/elt_description.pdf -- 874.8 Кб -- 11.09.2006 Похожие документы