... Discussion of Declination Drive Design . ... It is held in my personal stock of parts to replace a drive that might go out of service for some reason on one of the two LX200 telescopes that I am responsible for keeping in good repair.  ... The photocells detect light from a pair of small lights through the encoder mask and encoder wheel encased in the gear box housing. ... In one case of declination drive runaway, the cause was breaking of one of the leads to one of the photocells.  ... All fixed!! ...

... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

Galileo image of Venus taken from 2.7 million km. ... Galileo, P-37222) . ... Central Latitude/Longitude (deg): N/A . ... Instrument: Solid State Imaging CCD Camera . ... Instrument Field of View (deg): .46 x .46 . ... Illumination Incidence Angle (deg): N/A . Phase Angle (deg): N/A . ... Surface Emission Angle (deg): N/A . ... NASA Image ID number: P-37222 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ... Code 630, NASA Goddard Space Flight Center . ...

... POLAR , . ... The UT (hours) is shown along the X-axis. Range of X-axis corresponds to the time-interval considered. ... For each spacecraft its own color and line (parallel to the X-axis) are used as follows: . ... On the polar diagram the coordinates of each SC is shown by its own color and regions symbol. ... For more information about SC coordinates on the considered time interval the ASCII files are available (by pushing the colored buttons nearby of the plot). ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

The table of elements represents sets of elements in increasing order of minor planet numbers. ... In the column of G (slope parameter) the default value of the parameter equal to 0.15 is indicated as “X” to distinguish it from value 0.15 obtained by photometric observations (see (89) Julia, (419) Aurelia)). ... User has possibility to save the file with elements, to print it using standard means or to turn to the construction of histograms or distributions of minor planet elements. ...

... Bad Astronomy . Misconceptions . ... But what if they make Bad Astronomy there? ... But they aren't; what looks like a flat painting of stars on a canvas is actually a three-dimensional tapestry of stars at varying distances, the least of which is still tremendously far away. ... Look at the constellation of Orion, shown on the left as seen from the Earth. ... You cannot simply travel a thousand light years to the "opposite side" of Orion, look back, and see it backwards (as shown on the right)! ...

JSC Celebrates 40 Years of Human Space Flight . ... Scheduled for completion about 2006, the completed International Space Station will have a mass of about 1,040,000 pounds. ... The assembled space station will provide the first laboratory complex where gravity, a fundamental force on Earth, can be controlled for extended periods. ... Hospitals, business parks and solar electric power stations that beam clean, inexpensive energy back to Earth are likely to dot the "space-scape" 40 years from now. ...

Alexander S. Dmitriev . Institute of Radioengineering and Electronics of the Russian Academy of Sciences . Mokhovaya st., 11, Moscow, 103907, Russia. ... Moscow Institute for Physics and Technology . ... The relationship between the problem of cleaning chaotic signals off noise and the information properties of the signals is shown. Some methods for chaotic signal cleaning are considered. The efficiency of these methods is evaluated by computer simulation. ...

MAKING THE PROFILES . First of all you are expected to load a FITS file ("FILE"-"LOAD"). ... By pressing the middle button you copy the profile from the first profile window to the second one. ... An example: first integral can correspond to the profile of active region and second integral can correspond to the profile of quiet chromospheric region. ... The second profile (which is subtracted from the first one) you extract after clicking on "SUBTRACT"-"MARK QUIET PROFILE" and marking the region. ...

... Thin violet lines delimit PO's and thick lines, districts. Small squares with green icons are sources (stacks only) - approx. 100 of them. Small squares with blue icons are stations: top left - Beresfield, bottom right - Newcastle, Wallsend is hidden behind one of the cells. Big squares with crosses are cells into which we have split the territory for dispersion modeling. ... Малые квадраты с зелеными изображениями - источники (только трубы) - приблизительно 100 штук. ...

... Home Articles Optical Surface Cleaning Procedure . ... Clear Sky Chart . This Month's Sky . ... Beyond New York City . ... Optical Surface Cleaning Procedure . 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 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... 2013). ... N w1 w2 1 5101.35 5101.50 2 5104.80 5104.96 3 5106.15 5106.28 4 5106.78 5106.95 5 5108.56 5108.70 6 5116.36 5116.51 7 5118.70 5118.90 8 5120.78 5120.90 9 5133.07 5133.22 10 5134.10 5134.25 11 5134.55 5134.60 12 5140.12 5140.28 13 5140.96 5141.41 14 5149.41 5149.60 15 5151.15 5151.50 16 5152.53 5152.71 17 5159.70 5160.80 18 5170.50 5170.65 19 5170.89 5171.07 20 5174.84 5175.00 21 5175.35 5175.46 22 5178.34 5178.56 23 5198.29 5198.39 ...

RADIOASTROPHYSICAL DEPARTMENT  INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... Radioastrophysical Department , Institute of Solar-Terrestrial Physics, Siberian Division, Russian Academy of Science. ... Head of Laboratory dr. Gubin A.V. LABORATORY of INFORMATION SUPPLY and METHODOLOGY of RESEARCH . ... Head of Observatory Kitsanov S.V. SIBERIAN SOLAR RADIO TELESCOPE . Siberian solar radio telescope data at 5.7 GHz in I SOHO EIT 171 SOHO EIT 195 SOHO EIT 304 MDI Continuum MDI Magnetogram . ...

. Main . Staff . Research . Publications . Conferences . Links . q = M 2 : M 1 = 0.03, e = 0.5, "warm" disk ( с = 0.05), accretion rate = 10 -9 /year. The rotation angle of the apsidal line relative to the observer and through "_" the orbit inclination to the line of sight are indicated in the lower left corner of each diagram.

HEAD 2011: Poster 10.05 Project Tanagra: Stellar Flares in Chandra High-Resolution Spectra Jennifer Posson-Brown, Vinay Kashyap, Steven Saar & Jeremy Drake (Harvard-Smithsonian Center for Astrophysics) Abstract We introduce Project Tanagra: Timing Analysis of Gratings Data, a uniform study of archival Chandra gratings observations of active l ow-mass coronal stars. ... See Kashyap et al. 2002, 2011 and Saar et al. 2011.) ... High resolution spectra from MEG and HEG first order, and ze roth order. ...

ATM Forum Message . ... Post . ... Dirty Mirorr . ... Post Message | ... i believe that was i was seeing regarding the striping effect was indeed left over residue from a paper towel i was using to clean the surface before testing. i followed new instruction using eh same towel but instead of wiping now i blot. the striping pattern ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

The Status popup displays useful information about the state of sets, regions, and graphs. ... When the number of sets is less than 30, this button is not needed, use the scroll bars to view the status of the sets that are not shown in the display. ... Operations in the Status popup are performed by clicking on the operation, then clicking on one or more set numbers shown in the display. ... Clicking on Copy followed by clicking on a set number in the scrolled window will select the set to copy from. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . Human Exploration . ... Posted on August 1, 2014 | ... Continue Reading.. ... Posted on December 18, 2013 | ... Posted on November 29, 2013 | ... Posted on October 11, 2013 | ... Posted on August 22, 2013 | 123 Comments With the anniversary of the passing of one of the most iconic figures in mankindтАЩs space exploration program, it affords us an excuse to re-examine the short but history-making space [ ] . ...

... Determination of the Permissible Solutions Area by Image Reconstruction from a few Projections: Method 2­CLEAN DSA Michail I. Agafonov Radiophysical Research Institute (NIRFI), 25 B.Pecherskaya st., Nizhny Novgorod, 603600, Russia, E­mail: agfn@nirfi.nnov.su Abstract. ... Application The problem requires the solution of the equation G = H # F (+noise) , (1) where F (x, y) is the object brightness distribution, H(x, y) is the fan (dirty) beam, and G(x, y) is the dirty (summary) image. ...