... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

... OOF . ALMA . ... OOF Index . Zernike Polys . GBT example . ... Observed data and analysis . The observed beam maps are shown in the first row of the table below. ... We show the best-fitting aperture and the best-fitting beams as the number of Zernike orders used for the fitting is increased. A sample OOF observed data set (top row) and the results of analysis with increasing number of Zernike polynomials used to parameterise the aperture. ... In-focus beam . ... Observed beams . ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Supernovae: and How to Observe Them (Astronomers' Observing Guides) . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. Зимние созвездия (поиск и описание) .. ...

Comments on the regular wave planetology . ... Bothering all planetologiests losses of spacecrafts (SC) in martian orbit have a direct bearing on the regular wave planetology discussed at this symposium. ... Of 16 martian SC serious troubles and losses occured in 9 cases,this gives safety (stability) factor of 0,438. ... Sphericity factors are 0,830 and 0,420 respectively and they are rather near to the above shown safety factors (0,834 and 0,438). ...

... Recent Topics . ... MAO main . ... Fw: ASTRONET: Task 5.4 - observing schools . ... Subject: Re: ASTRONET: Task 5.4 - observing schools . ... second half of September, and which will be funded by the training and . ... www.iap.fr/opticon/neon_schools/2014/index.html . ... intended for master and starting PhD students. ... actions on observing schools, providing access for students, Master . ... observing schools for master students. ... in form of observing schools for pre-PhD students. ... MAO NASU...

... Melted remains of Cassegrain spectrograph areтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . ... Title: Melted remains of Cassegrain spectrograph are on the remains of the observing carriage . Description: Newtonian platform has collapsed, gears for platform rest on the dome track . ... Melted remains of Cassegrain spectrograph are on the remains of the observing carriage Newtonian platform has collapsed, gears for platform rest on the dome track . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Principle of generation of radio images General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases ... Solar radio images are generated by beams oriented within the SSRT field of view (90'). ...

home resources > links . SEARCH ASP SITE: Match ALL words Match ANY word . AstroShop . ... ASP Educational Resources . General Observing . Central Bureau for Astronomical Telegrams . ... I. R. Poyser Telescopes . ... Sierra Stars Observatory Network (SSON) . ... Slooh Online Observatory . ... Telescopes in Education . Telescopes Reviews . Backyard Observatories . Ash Observatory . ... Home Dome . ... home | ... education | resources | ... astroshop | ...

... Spacecraft . 29b. Satellites looking down . ... 29e. Explorers of distant space . ... The Hubble orbiting telescope. ... The Hubble telescope , in low Earth orbit, overcomes such limitations, in the visible range and in part of the UV. ... So fruitful was this observation that a second "deep field" exposure of such length, near the southern pole of the heavens, was recently conducted. ... Some satellites specialize in observing the Sun, such as the Japanese Yohkoh and NASA's SOHO . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil †А la une Trous noirs, comment naissent ces monstres . ... Page 12 . ... Trous noirs g†йants : Comment ils naissent au coeur des galaxies . ... Les trous noirs g†йants naissent-ils au sein des galaxies ? ...

The Hubble orbiting telescope. The Earth's atmosphere, while transparent to visible light, absorbs most "electromagnetic radiations" which belong to the same family as light: parts of the infra-red (IR) and all of the ultra-violet (UV), X-rays and gamma rays. ... The Hubble telescope , in low Earth orbit, overcomes such limitations, in the visible range and in part of the UV. ... Some satellites specialize in observing the Sun, such as the Japanese Yohkoh and NASA's SOHO . ...

. Next: Introduction Up: PEPSYS general photometry Previous: General advice about . Introduction . Preparing to use the planning program . Using the planning program . Selection criteria . Influencing the plan . Rein Warmels . Mon Jan 22 15:08:15 MET 1996

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

Peremennye Zvezdy", . ... Min . ... 2MASS J16480306-6715178 . ... The variable star catalogued as ASAS 164802 6715.2 by Pojmanski (2002) was found to display two types of eclipsing variability by Pilecki and Szczygiel (2007). ... The comparison stars (identified in the finding chart) used were: . ... The data for Star A and B has been obtained using Comp Star 2 between HJD 2455709.956 and 2455710.089 and between 2455718.005 and 2455718.096. All other data was obtained using Comp Star 1. ...

... Moore Observatory is a research and advanced teaching facility of the University of Louisville. ... The 24-inch Ritchie Chretien (RC24) telescope is a research instrument used by faculty and graduate students involved in studies of exoplanets, optical properties of the atmosphere, and the development of imaging and spectroscopic technology. ... Kent (CDK20S) are collaboratively operated by the University of Louisville and the University of Southern Queensland for both research and education. ...

. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . These pages provide links to information about HST instrumentation and how to apply for observing time. About HST . HST Documents (@STSCI) . Proposal Preparation (@STSCI) . Maintained by Harald Kuntschner <hkuntsch@eso.org> .

Title: A Dark-Matter Spike at the Galactic Center? Authors: Piero Ullio , HongSheng Zhao , Marc Kamionkowski . ... Title: The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3 . ... Title: The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger . ... 16 matches for the search pattern galaxy environment . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+environment/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

... ASRAS HOME . Radio Astronomy . ... About ASRAS . ... Our Observing Site . ... 2015 Mees Tour Guides . ... We're offering Regular Tours (a presentation on astronomy geared to a general audience, followed by a tour of the observatory and (hopefully!) observing of several objects, which may include the Moon, planets, nebulae, star clusters and perhaps galaxies), and Kids' Tours (a more interactive presentation specially aimed at youngsters plus the observatory tour and observing) as in prior years. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...