Next: The Formation and Evolution Up: NICMOS Science Previous: NICMOS Observes the Galactic . ... We have taken diffraction-limited ( 0.15") near-infrared F160W (henceforth H-band, for convenience) images with NICMOS on HST of the center of the R136 cluster (age 3.5 Myr) in the core of the 30 Dor giant HII region in the Large Magellanic Cloud. ... 1996, ApJ 466, 274) can sample only M >2M , while previous V and I band HST images with WFPC2 (Hunter et al. ...
... Four types of galaxy environments are considered: clusters, centers of groups, other places in groups, and the field. ... In order to check whether the mean ages of the stellar populations depend on environment density monotonically, as the hierarchical par adigm predicts, in this work I consider four types of environment separately: the cluster galaxies, the brightest (central ) galaxies of groups, the secondranked group members, and the field galaxies. ... Group center SB(rs)0# 204 637 1996 Oct ...
... Bad Astronomy . ... Bitesize Astronomy . ... Here's a question for you: if you were to place the Moon randomly anywhere in the sky, on average, how many stars would it cover up? ... We found that the sky is about 40,000 square degrees . ... The area of a circle is pi * radius^2, so the Moon's area is pi * (1/4)^2=0.2 square degrees. So the number of stars in an area the size of the Moon is 0.15 stars/square degree * 0.2 square degrees=0.03 stars per Moon area. ... 2008 Phil Plait. ...
... Tonight's Sky . ... Star Atlas . ... stars . ... APEX turns its eye to dark clouds in Taurus . Behind these clouds lie rich areas of star formation. ... APEX image of a star-forming filament in Taurus. ... In it, newborn stars are hidden, and dense clouds of gas are on the verge of collapsing to form yet more stars. ... The Taurus Molecular Cloud is particularly dark at visible wavelengths as it lacks the massive stars that illuminate the nebulae in other star-formation regions such as Orion. ...
... Stars . ... Monthly Sky Notes . ... January . ... But as you may find as we work our way around the stellar тАШcastтАЩ of the Winter Circle, these very bright stars can sometimes be more than just one star, such as Rigel which is actually a triple star system working together to provide such a beautiful twinkle in our night sky. ... Just be careful not to wonder too far away from the circle if trying to star hop around it, there are many diversions and attractions that are out to distract you! ...
... AstroImageJ (AIJ) .. ... Reads and writes FITS images with standard headers . ... Provides a time and coordinate converter tool with capability to update/enhance FITS header content (AIRMASS, BJD, etc.) ... Creates color images and with native ImageJ processing power . ... AstroImageJ_Updater . Update operation now updates AIJ version number in Info.plist CFBundleVersion and CFBundleShortVersionString (MacOSX only) . ... AstroImageJ is ImageJ with astronomy plugins and macros installed. ...
Using Site testing data for Adaptive Optics simulations Kislovodsk, October 2010 1Glen Herriot, 1David Andersen, 1Jean-Pierre VИran, 2Brent Ellerbroek, 2Luc Gilles, 2Lianqi Wang 1National Research Council Canada Herzberg Institute of Astrophysics 2TMT Project Office, Pasadena TMT.AOS.PRE.10.074.REL01 1 Outline TMT / NFIRAOS Site Testing Parameters and their value for Adaptive Optics Simulations ... TMT.AOS.PRE.10.074.REL01 9 What is the interest of Adaptive Optics in r 0 Seeing ? ...
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Ссылки http://site2010.sai.msu.ru/static/doc/GHerriot_site2010.ppt.pdf -- 1942.1 Кб -- 18.10.2010 Похожие документы
... Python IDL download calc_kcor.pro . ... At present, SDSS (ugriz), UKIRT WFCAM (YJHK), ; Johnson-Cousins (UBVRcIc), and 2MASS (J2H2Ks2) ; are supported ; redshift - redfshift of a galaxy (floating point) ; colour_name - colour identification (string) ; colour _value - value of colour in magnitudes (floating point) ; should be in the AB mags for ugrizYJHK ; and in Vega mags for Johnson-Cousins/2MASS colours ; ; RETURN VALUE: K-correction in the specified filter for given redshift ; and ...
... Home Articles Best Celestial Events of 2006 . ... Clear Sky Chart . ... Beyond New York City . ... Best Celestial Events of 2006 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...
... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...
Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Re:Can Someone Tell Me The Name Of This Star? Forum List | ... Post Message | ... my astronomy a.t.m. site . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
Фотографии и видео - внизу страницы. ... Архив фотографий из похода - файл называется 08_kavkaz.zip . Размер файла 593 Мб . ... Например 20100806_124315.jpg - 6 августа 2010 года, 12ч 43м 15сек. ... Разрешение кадра 1280x720 пикселей, размер файла 1.66 GB . ... Файл в формате mpeg-2 (как DVD). kavkazHD.avi . Разрешение кадра 1280x720 пикселей, размер файла 655 Mb . ... Разрешение кадра 720x576 пикселей, размер файла 668 Mb . ... Разрешение кадра 720x400 пикселей, размер файла 296 Mb . ...
... Сообщения без ответов . ... Последнее сообщение . ... k2s Перейти к последнему сообщению . ... Asya_Schtirlitz Перейти к последнему сообщению . ... DeZeRt Перейти к последнему сообщению . ... Последнее сообщение Re: Химия. ... Vasisualiy57 Перейти к последнему сообщению . ... Ане4ка Перейти к последнему сообщению . ... bootal Перейти к последнему сообщению . ... Последнее сообщение Re: Равноденствие 2010 . Capricornus Перейти к последнему сообщению . ... Dmitry Перейти к последнему сообщению . ...
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
. Comment on J1720-0058 . Resolved: this FR-II radio galaxy is not detected at 2.3 GHz by Preston et al. (1985). A VLA map at 8.4 GHz is published by Swain, Bridle & Baum (1998). However, there is correlated signal at the shortest baselines from which a position has been derived and is listed in the table. Our best guess is that the residual core has a flux density of 0.15 Jy and a size of ~15 mas. See Figure 3. VLBApls home page . Last modified: 16 Oct 2000
... 45° Eyepiece Focus Knob Optical Tube Sunshade Objective Lens Zoom Ring Mounting Head Quick Mount Latch Mounting Platform Side Tilt Locking Nut Elevation Crank Handle Elevation Height Locking Nut Tripod Leg Locking Lever Pan Lever Vertical Lock 1 Parts The · · · following par ts are included with the spotting scope: The spotting scope optical tube. ... If your spotting scope is intentionally immersed in water for any significant length of time, you risk voiding the warranty in doing so. ...
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Ссылки http://www.meade.com/manuals/spottingscope/81011_20_60x60_UsersManual.pdf -- 248.5 Кб -- 11.01.2012 Похожие документы
STARTEST IMAGES GALLERY . Type: Maksutov Cassegrain . ... Inside Focus . ... Outside Focus . ... These is are the startest images of two alike 6"F/10 Maksutov Cassegrain’s. The central obstruction on these images is slightly larger than in the reality. ... Another rather easy done simulation for the second image from the left in the second table with images. ... Also the middle-ring is brighter in the simulation according to the PSF’s , this is however not so clear when you look at the images. ...
The Official Publication of the Amateur Astronomers Association of Princeton Director Rex Parker ( 609 ) 730-0670 rex_a_parker@msn.com Assistant Director John Miller ( 609 ) 252-1223 jmiller@princetonastronomy.org Treasurer Program Chairman Brian VanLiew Ken Kremer (908) 281-7957 ( 609 ) 558-4955 bvanliew@sensingstrategies.com ken@princetonastronomy.org Secretary Ludy D'Angelo ( ... Our guest speaker will be Dr. Guy Consolmagno of the Vatican Observatory. ... Observatory and Springtime Galaxies. ...
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Ссылки http://www.princetonastronomy.org/newsletters/05_2007sidereal.pdf -- 674.1 Кб -- 02.05.2007 Похожие документы
The referenced photographs were provided by the NASA JSC Imagery Repository and Tom Moser. ... This oral history interview with Thomas Moser is being conducted for the NASA Johnson Space Center Oral History Project in The Woodlands, Texas. ... I?ll talk in detail about that, but let me just say in my career path being a mechanical design engineer and then getting into the structures area?let me back up. ... I started off in the Shuttle Program when I was a subsystem manager for the Orbiter structure. ...