RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 203MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 203MN is 4.6, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (37 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...
... Superflat Correction of Data An example of space-dependent calibration errors combined with poor centering is shown in Figure 1, where the differential V photometry for three stars in a single field is plotted as a function of the position on the detector. ... 374 Manfroid, Royer, Rauw, and Gosset -0.05 a b c a b c 0 0.05 0 -0.05 0.1 0.2 0.3 0.4 0.5 a b c 0.6 0 0.2 0.4 0.6 0.8 a b c 1 0 0.05 0 0.1 0.2 0.3 0.4 x position 0.5 0.6 0 0.2 0.4 y position 0.6 0.8 1 Figure 1. ...
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Ссылки http://www.adass.org/adass/proceedings/adass00/reprints/P1-03.pdf -- 307.4 Кб -- 29.05.2001 Похожие документы
... История календаря . ... Семь дней . ... Время. ... У вьетнамцев сохранился до сих пор красивый обычай созерцать луну в шестнадцатый день восьмого месяца их лунного календаря: светлый лик, не закрытый тучами, обещает хороший урожай в этом году, полузадернутый туманной пеленой ? ... Император решил провести реформу в 46 г. до н.э. К тому времени римский календарь разошелся с солнечным на 70 суток по милости нерадивых понтификов, да еще десять дней надо было прибавить, чтобы год стал нормальной длины. ...
... Planets . ... Stars . Exoplanets . ... Most exoplanets so far discovered fall into the category of тАШhot JupitersтАЩ, these are giant planets orbiting very close to their parent star. ... Note that we have discovered so many hot Jupiters because they are the easiest type of planet to find, they are not necessarily particularly common in the galaxy. ... Subsequently several similar hot and€а fuzzy worlds have been discovered the same way, proving this that this planet is not a one-off oddball. ...
... The world standard in telescope oculars, Meade Series 4000 eyepieces yield the widest possible fields of view, consistent with pinpoint edge-of-field sharpness and long eye relief and yet with extremely low astigmatism, spherical aberration, and off-axis color. ... Your Series 4000 eyepieces are superb, with the Super Wide Angle 32mm and Ultra Wide Angle 14mm (two incredible eyepieces) being particular favorites of mine. ... Meade Series 4000 8mm - 24mm Zoom Eyepices (1.25") . ... about meade | ...
... Conical baffle adjustment . ... The conical baffle has three translational and two rotational degrees of freedom that can be controlled by adjusting the length of 8 wires using turnbuckles. In addition, the natural frequency of the torsional vibration mode of the baffle about its axis is determined by the tension in the wires. ... Adjust the release force of the conical baffle support wire anchors. ... Figure 1: One of eight conical baffle support wire anchors. ... Conical baffle front tip . ...
Next: HST-NICMOS Observations of Galactic Up: NICMOS Science Previous: A Color Analysis of . ... Why choose NGC 1569? ... NICMOS Data in the Central Region of NGC 1569 . ... To have a census of the old stellar populations of the dwarf irregular galaxies NGC 1569 and NGC 1705 and to trace the major episodes of star formation over a Hubble time in these starbursting systems, we have applied for and obtained HST/NICMOS observations in the F110W and F160W bands with the NIC2 camera. ...
... click image to view discuss) . ... This is a quick shot of the near-Earth asteroid 2005 YU55 using four consecutive exposures from the Harvard MicroObservatory robotic telescope in Amado, Arizona, on the night of Nov. ... 10, 2015 . This is Comet Lovejoy C/2014 Q2 as it appeared at about 10:30 pm Saturday, Jan. 10, 2015, from my back yard in Belmont, MA, about 5 miles west of downtown Boston. ... Main image: 0.6 second exposure. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
Apache's support for content negotiation has been updated to meet the HTTP/1.1 specification. It can choose the best representation of a resource based on the browser-supplied preferences for media type, languages, character set and encoding. ... Content-Language: . ... The reason for setting this language quality factor for variant with no language to a very low value is to allow for a default variant which can be supplied if none of the other variants match the browser's language preferences. ...
... теория гравитационного поля и фигуры земли (В.В.Бровар, Н.П.Грушинский, Н.А.Чуйкова, Л.А.Савров), . ... Экспериментальная часть вместе с влившейся группой сотрудников физического факультета была объединена в Отдел Гравитационных Измерений (далее ОГИ). ... Заведующим новым отделом стал д.ф.м.н. В.Н.Руденко , перешедший в ГАИШ с Физического факультета, ранее работавший по проблеме детектирования гравитационного излучения под руководством создателей этого направления Я.Б.Зельдовича и В.Б.Брагинского. ...
Lurie-Houghton Telescope Design . Articles | ... This was a major decision for me, especially in light of the complexities of this particular telescope design. ... The Newtonian telescope uses a paraboloidal mirror at the back end of the telescope tube to reflect and focus the light. ... The following figures compare the performance of the Lurie-Houghton telescope I designed to a Newtonian telescope with the same aperture and focal ratio. ... www.astronomy.net . About Astronomy Net | ...
... 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 . ...
... 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. ...
... The Thickness of Stellar Disks in Early-type Galaxies E. M. Chudakova* and O. K. Sil'chenko ** Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia Received August 19, 2013; in final form, October 30, 2013 Abstract--We suggest and justify a new photometric method enabling the derivation of the relative thickness of a galactic disk from the two-dimensional surface-brightness distribution of the galaxy in the plane of the sky. ... The galaxies are non-interacting. ...
Astronauts John W. Young (left), commander, and Robert L. Crippen, pilot, crewed Space Shuttle Columbia on its maiden voyage--the first orbital test flight of the Space Transportation System. ... 28838 NASA S82 STS-41B The first mission to end with landing at the Kennedy Space Center included another historic first when Astronaut Bruce McCandless II flew untethered outside Challenger during a demonstration spacewalk. ... JSC is the home of a wide range of wildlife and domesticated animals. ...
... The guest lecture on Tuesday, October 11 will continue the innovative Different faces of Mars, imaged during the Sept 2003 opposition. space hardware theme being developed by Program RAP photos, using ST-10XME CCD camera with Takahashi FS-128 Chair Ken Kremer. The renowned aerospace engineering writer Craig Covault, senior edifor club members and public at the WC Observatory, with a tor and writer for Aviation Week and Space Technology Magazine, focus on Mars viewing plus other deep sky phenomena. ...
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Ссылки http://www.princetonastronomy.org/newsletters/10_2005sidereal.pdf -- 437.2 Кб -- 08.10.2005 Похожие документы