Next: DIRECT MASSES FOR BXCIR Up: EXTREME HELIUM STARS: PULSATION Previous: PULSATION PROPERTIES . As already indicated, V652Her is an important EHe star because its relatively short pulsation period and large amplitude pulsations allow its overall dimensions to be determined with high precision. ... Saio & Nomoto (1998) made the first successful models for the merger of two carbon-oxygen white dwarfs, and prompted Saio & Jeffery (2000) to attempt models for the merger of two helium white dwarfs. ...
... News . ... NASA captures new images of large asteroid passing Earth . ... NASAт??s Deep Space Network antenna in Goldstone, California, has captured new radar images of asteroid 2005 YU 55 passing close to Earth. ... The image was taken November 7 at 2:45 p.m. EST, when the asteroid was approximately 860,000 miles (1.38 million kilometers) away from Earth. ... NASA detects, tracks, and characterizes asteroids and comets passing close to Earth using both ground- and space-based telescopes. ...
... METAM-IQ . ... ABOUT LOMO . ... MICROSCOPES . ... SURGICAL MICROSCOPES . ... Home Products Microscopes METAM-IQ . ... LOMO America, Inc. will repair or replace the defective microscope covered by this warranty free of charge if it is returned, postage prepaid, to LOMO America's Service Center in Prospect Heights, Illinois in its original package. A Return Authorization Number (RAN) has to be obtained from LOMO America, Inc. prior to shipping. ... LOMO America, Inc. ... 2000-2016 LOMO America,Inc. ...
... ARC 3.5m | NICFPS . ... Taking Exposures . ... As with other IR detectors, it has the capability to be read out non-destructively, allowing for multiple readouts per exposure. In NICFPS, the number of times the detector is read out for each exposure is determined by the Fowler Sampling (FS or NFS, Number of Fowler Samples) setting. ... The NFS=0 mode is somewhat unusual for an IR detector; in this mode, the array is reset, the specified exposure time elapses, and then the detector is read out. ...
The Astronomy Net . Articles | ... Forums . ... Planets | ... The list below is a live snapshot of where the planets and moon are located right now. ... The links in the left hand column take you to a mirror of the excellent NinePlanets web site where you can read about each planet and much much more. The latest news includes the fact that Pluto is no longer classified as a planet. ... Pluto is now classified as a 'dwarf planet' which includes Ceres and soon to be many others. ... 100 . ...
Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Site . Weather . Roof Status . ... Average Max. ... 0.0 . ... In 2004, the roof was operated manually, while in 2005 through 2007, it was operated automatically by computer, but was not closed by weather sensors. ... The "Closed" column includes those nights outside the Monsoon season when the Observatory was closed due to weather (the usual cause), equipment failures, or vacation by the Winer staff in 2004 through 2006. ...
Astronotes Armagh Planetarium's Stellar Blog! ... Milky Way . ... Monthly Sky Notes . ... September . ... By admin August 31, 2012 Posted in: Monthly Sky Notes , September . ... September is still a great time for gazing upon our home galaxy, the Milky Way and with the longer darker skies we may be able to see more clearly the celestial jewels hidden within it.€а Our first mission is to find the Milky Way galaxy and nicely it is running right over our heads at this time of the year. ...
Sternberg astronomical institute activities on site testing programs review Victor Kornilov comprehensive/characterization/of/astronomical/sites > kislovodsk/russia/2010/october/4-9 > Introduction This presentation responds on our activity in 5 last years only, inspite of that in SAI site testing researches have been started many years ago. ... More detailed discussion is devoted to MASS and DIMM measurements processing, some additional effects which were taken in account in last year. ...
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Ссылки http://site2010.sai.msu.ru/static/doc/VKornilov_site2010.pdf -- 2488.3 Кб -- 18.10.2010 Похожие документы
... Printed in U.S.A. Measuring the Balmer Jump and the Effective Gravity in FGK Stars Michael S. Bessell Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo, Weston, Australia; bessell@mso.anu.edu.au Received 2006 October 17; accepted 2007 May 18; published 2007 June 21 ABSTRACT. ... Synthetic fl spectra for [Fe/H] p 2.5, 5750 K, and log g p 4.5, 3.5, 2.5. ... Synthetic spectra divided by an 11,800 K BB for [Fe/H] p 2.5, 6500 K, and log g p 4.5, 4.0, 2.5. ...
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Ссылки http://www.mso.anu.edu.au/~bessell/FTP/Oldspectrophotometry/bessell2007BJ.pdf -- 282.6 Кб -- 08.10.2007 Похожие документы
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
яЛП . PubliУ? le 22/07/2012 par Nicolas Jaume . Date : 25/06/2012 . Lieu : St Sulpice la pointe . MatУ?riel de prise de vue : 80ED skywatcher + reducteur 0.85 . Commentaires : APN 500D non dУ?filtrУ? 16x240sec
Mon. Not. R. Astron. Soc. 349, 13971418 (2004) doi:10.1111/j.1365-2966.2004.07619.x The 2dF QSO Redshift Survey XII. The spectroscopic catalogue and luminosity function S. M. Croom,1 R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 L. Miller,4 P. J. Outram3 and N. S. Loaring4,5 1 2 3 4 5 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of
... 86, No. 12, pp. 11631178. i Structure of the Galaxies of the NGC 80 Group : Two-Tiered Disks M. A. Startseva1 , O. K. Sil'chenko1 , and A. V. Moiseev 1 2 Sternberg Astronomical Institute, Moscow State University, Moscow, ... photometric data obtained on the 6-m telescope of the Special Astrophysical Observatory are used to analyze the structure of 13 large disk galaxies in the NGC 80 group ... All the large lenticular galaxies have two-tiered exponential disks and exponential ґ...
CHAPTER 12: Lead Center Space Center personnel began work on the Space Shuttle under the cloud of reductions in force, tightening budgets, growing public apathy or outright criticism, and unclear and changing program directives. ... Budgetary constraints contributed to the decision to establish a lead center management approach for the Shuttle and affected program development. ... Now, as Shuttle Program Manager, Thompson had overall responsibility for the development of the Shuttle. ...
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Ссылки http://www.jsc.nasa.gov/history/suddenly_tomorrow/chapters/Chpt12.pdf -- 323.0 Кб -- 10.11.2004 Похожие документы
... Ludovico D'Angelo, Program Chair Touring the Electric Propulsion Lab at Princeton University At the invitation of our March 2007 speaker, Princeton University Professor Edgar Choueiri, I led a AAAP member tour on June 21 of the Plasma Propulsion Lab located in the Department of Mechanical and Aerospace Engineering (MAE). ... Lab Website: http://alfven.princeton.edu/index.htm Edgar's elegant AAAP lecture on "Plasma Propulsion and the Exploration of Space" introduced us to his group's research. ...
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Ссылки http://www.princetonastronomy.org/newsletters/09_2007sidereal.pdf -- 1062.4 Кб -- 16.09.2007 Похожие документы
... The glass was cold polished for a year. ... I hope to see you ther e. Rich Rosenberg, president@aaa.org, (718) 522-5014 Gamma-ray Talk May 6 Wraps Up AAA's 2010-11 Lecture Series David J. Thompson, a deputy project scientist for the Fer mi Ga mma-ray Space Telescope at NASA's Goddard Space Flight Center in Greenbelt, Md., will wrap up the AAA's 2010-11 lecture series Friday, May 6 when he speaks on "Exploring the Extreme Universe with the Fer mi Ga mma -ray Space Telescope." ... What is dark matter?...
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Ссылки http://www.aaa.org/EyepieceFiles/aaa/2011_05_May_Eyepiece.pdf -- 709.0 Кб -- 22.02.2015 Похожие документы