... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... Updates to HST Standard-Star Fluxes . ... These data are in an STScI data base named CRCALSPEC and have been divided into two categories to help the user understand the origin and accuracy of these flux distributions. ... 1990, ApJS, 73, 413) and Oke (1990, AJ, 99, 1621) spectra are available. Oke (1990) used the DoubleSpectrograph on the 5-m Hale Telescope to obtain these spectra for HST calibration; and these data are identified in the HST data bases by the keyword OBSMODE=OKE DBSP. ...

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > I cannot find flux standard stars with the same readout mode and binning as my science data. ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Science Data Products Forum . ... ESO Data . ... X-SHOOTER flux standard stars (VIS/UVB) are always acquired in 100k high gain 1x1 read-mode. The pipeline applies corrections for differences in gain and binning during the flux calibration of the science data. ...

This form calculates which transits of the 1039 known transiting exoplanets are observable from a given location at a given time. Specify a time window, an observing location (either an observatory from the list or choose "Enter latitude/longitude" at the end of the list), and optionally any filters (e.g. minimum transit depth or elevation). The output includes transit time and elevation, and links to further information about each object, including finding charts and airmass plots. ...

... General information . ... Staff . Research staff . Technical, administrative & librarian staff . ... Staff in alphabetic order . Research . ... Projects . ... General interest seminars . ... IT Services . ... Information . Resources and catalogs . ... Historical highlights . Historical research . Historical archive . ... Projects and events . Online resources . ... Archive . ...

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

An astronomer by training, I currently work at the Australia Telescope National Facility , part of the CSIRO . I am part of the computing group for the Australian Square Kilometre Array Pathfinder (ASKAP), where my job is to develop science analysis software for the ASKAP processing pipeline. The huge volumes of data that ASKAP will produce mean that all observations will be processed automatically in pipelines. ... Matthew Whiting . ... Australia . ... Matthew.Whiting <at> csiro.au . ...

... Planet Finder Options I: Linear Nulling Arrays for Studying Earth-Like Planets . ... Missions . ... Future Missions and . ... Missions Office . ... This paper shows options for configuring a symmetric linear nulling array as a Planet Finder. Of special interest are linked in-line pairs of identical sub-arrays with a quarter wave phase shift between them and staggered by half an element spacing. ...

Nuffield Research Placements offer up to 1000 funded places a year, so that students across the UK can get an insight into the world of scientific research. The Nuffield Foundation offers bursaries to first year post-16 science students in England, Northern Ireland, Wales and Scotland, helping students to take part in science based projects, lasting 4-6 weeks, in universities, industry or research institutions during the summer holidays. ... 2012 James Murphy : (pdf) . ... 2007 Emma Riley: (ppt) . ...

Peremennye Zvezdy", . ... Min . ... USNO-A2.0 1200-02251226 . ... Comm. ... Primary minima: . HJD(TT) . ... Primary minimum: HJD(TT) 2455906.453 0.005. ... A close pair of two stars: USNO-A2.0 1200-02275043 and 2MASS 04274467+3215128, USNO-A2.0 1200-02275043 varies. ... The coordinates of the variable stars in the table were drawn from the 2MASS catalogue (Skrutskie et al. 2006) except for a star USNO-A2.0 1200-02287405; their coordinates were drawn from the USNO-A2.0 catalogue (Monet et al. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... We summarize the discussions that took place during the FITS Birds of a Feather (BoF) session, which was held Monday, September 23, 1996 at 16:00. For completeness we also include a summary of the 1995 FITS BoF, which was never published. ... Oral papers by Clarke, Allen, Mink, Mandel, and Wells were presented in a special FITS afternoon session, and posters were presented by Pence, Farris, Tripicco, and Stobie; see the papers by these authors elsewhere in this volume. ... CFITSIO (Pence) . ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

... Вход в Астротоп + Напомнить пароль + Блог + ЗАРЯ + Exit . ... Поиск сайтов в нашем каталоге (по части: адреса/названия/авторства): . ... Назад, на титульную страницу AstroTop-100 . ... Все замечания и предложения по поводу работы проекта AstroTop of Russia Вы можете оставить в гостевой книге . ... Вольф Александр , ему слать все замечания по идеологии и содержанию проекта. Программирование: Самодуров Владимир, Вольф Александр . ... Александр Вольф . ... AstroTop of Russia Гостевая книга . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . ... By admin November 24, 2015 Posted in: Armagh Planetarium . Please note that these items are not currently available to buy online from Armagh Planetarium . ... Image Credit: Martina Glass/Armagh Planetarium) . ... Not to just limit space gifts for the older members of the family. ... Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

Next: Reduction procedure Up: Extinction and transformation Previous: Strategy . Standard stars can be included in the extinction solution, if one is careful. The problem is that there are usually appreciable ``conformity errors'' due to mismatch between the instrumental and the standard passbands [ 16 ]. ... Thus, it is wrong to assume that the transformation between the instrumental system and the standard system is exact, even if there were no measurement error in either system [ 1 ]. ...

... The real-time system for astronomical observations on the telescopes of the virtual observatory from ICAMER, SAO RAS, and BNO INR RAS . ... 81K Three large astronomical observatories-- ICAMER, SAO and BNO JNR RAS- are located in the compact area of the Northern Caucasus. ... The unification and synchronization of data-flows from these telescopes will allow one to carry out astronomical observations at a new level and to realize a virtual observatory with new capabilities for space research. ...

For Astronomers : Finding a Partner Teacher . ... About amateur astronomers . Because Project ASTRO encourages both amateur and professional astronomers to visit schools, there are several avenues to pursue to find a partner astronomer. ... Contact local astronomy clubs . Many amateur astronomers belong to local astronomy clubs. ... To find amateur astronomy clubs in your area, contact your local planetarium, community college astronomy department, or a local telescope store. ...

Find The Perfect Gift For Your Favorite Astronomy Nut . Articles | ... If you have an astronomy nerd, nut, or enthusiast on your gift-giving list, you are in luck when it comes to shopping. ... Astronomy is the wonderful science of examining and learning about our universe, and the instruments of observation are telescopes and binoculars. ... The Internet is your shopping mother lode for astronomy-related gifts. ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Astrophysics Group . ... Optical Interferometry . Magdalena Ridge Observatory Interferometer . ... OIFITS: A Data Exchange Standard for Optical (Visible/IR) Interferometry . ... Very Large Telescope Interferometer . ... The observatory will comprise two facilities, a single 2.4 meter telescope and an optical/infrared telescope array, the Magdalena Ridge Observatory Interferometer (MROI). ... 2010), ?Magdalena Ridge Observatory Interferometer: advancing to first light and new science? ...