... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

... Abstract Return the d.p. value of a kernel variable from the kernel pool. ... Brief_I/O VARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- name I Name of the variable whose value is to be returned. start I Which component to start retrieving for name room I The largest number of values to return. n O Number of values returned for name. values O Values associated with name. found O True if variable is in pool. ... Included the data for a test kernel. ...

SELECT <arithmetic expression> CASE n1 [,n2...] [ <statement>.. ... OTHER [ <statement>.. CSELECT . ... At least one integer must be present for each CASE statement. the integer values may appear in any order in the CASE clause. the CASE clauses need not contain all values in the range 1 to N, where N is the largest integer value used. ... SELECT COLOR+1.0 CASE 1 COLTXT='BLACK' CASE 2 COLTXT='RED' CASE 3 COLTXT='GREEN' CASE 5 COLTXT='BLUE' CASE 8 COLTXT='WHITE' OTHER COLTXT='MIXTURE' CSELECT . ...

... References: %Observed energy levels: Edlen, 1984, Phys.Scripta, 30, 135 %Theoretical energy levels (1-15): Zhang, Sampson, ADNDT, 1999, 72, 153 % produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % G. Del Zanna, May 2001. contains wavelengths, gf and A values for each transition. ... 1999, Physica Scripta 59, 122 %produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % G. Del Zanna, May 2001 . ...

... Transmission from Noise source A, to A B CAL outputs HCORCAL -13 -14 -15 dB A-src to A CAL out A-src to B CAL out -16 -17 -18 1.0E +09 1.1E +09 1.2E +09 1.3E +09 1.4E +09 Freq (Hz) 1.5E +09 1.6E +09 1.7E +09 1.8E +09 Transmission from Noise source A, to A B CAL outputs LCORCAL -23 -24 -25 dB A-src to A CAL out A-src to B CAL out -26 -27 -28 1.0E +09 1.1E +09 1.2E +09 1.3E +09 ...

... A gain value of 1 will leave the image in the default situation in which the pixel with the largest net flux is saturated, ie has an RGB with at least one of its three values equal to 1.0. ... Say this value is set to . ... In the case that gainstyle =`auto', colimplot does two things: first, it creates (internally) a histogram of numbers of image pixels against net flux; using the histogram, it then estimates a value of net flux, call it , such that pixelfraction pixels fall below this value. ...

In the Table below the masses of some asteroids which were determined during the last years are listed. ... The listed values were determined from observations of many test bodies by the weighted least square fit for one perturbing mass and corrections to the orbit elements of all used test bodies. ... based on the observations of 98 asteroids (including 50278) with the values of standard error of mass determination less than 3.0 10 -11 M Sun . ... Mass . ... 3) Mass 121 : 0.74 x 10 -11 M Sun ; . ...

... 2008 April 9 . A Large Magellanic Cloud Deep Field . ... Explanation: Is this a spiral galaxy? ... Actually, it is the Large Magellanic Cloud (LMC), the largest satellite galaxy of our own Milky Way Galaxy . ... The Large Magellanic Cloud lies only about 180,000 light-years distant towards the constellation of Dorado . ... Together with the Small Magellanic Cloud (SMC), the LMC can be seen in Earth's southern hemisphere with the unaided eye. ... About APOD | ...

... All angular values are expressed in degrees. ... But those who have the facilities for high-speed photometry could try to observe these phenomena. h m ° ° ° ° 2016 April 1 18 51.0 84.9 57.4 345 20 168378 1997 ET30; 17.8 ; 1.7 km; 7.2; 0.47s 18 58.0 67.3 45.6 325 26 U2 027489793 ; 10.6;14h06m06.171s;-12°01'21.53 19 05.0 49.6 38.1 307 22 2016 April 10 22 10.4 106.6 -31.2 311 75 297274 1996 SK; 20.3; 1.7 km; ...

To change the Scaling Function (how pixel values are binned into color levels): . ... For example, the basic grey-scale color map specifies no intensity for any color at the lowest color level, full intensity for all colors at the highest color level, with the red, green and blue intensities varying linearly for intermediate levels. ... At low bias, low color levels (i.e., low pixel values) will have non-zero intensities, while at high bias only high pixel values will have non-zero intensity. ...

I would like to propose two new features for the axes annotation in the GMT. 1st: In astrophysics, we often work with great ranges of values (many orders of magnitude). ... However, GMT 3.2 allows to plot annotations for log10 axes every integer log10 value or even more frequently. The proposed patch allows to specify large steps for the log10 axes, in the form illustrated by an example below. 2nd: 10^0 instead of 1, and 10^1 instead of simply 10 do not look beautiful. ... The patch is here. ...

... ON THE ROLE OF LARGE-SCALE PLASMA IRREGULARITIES AT THE FINAL STAGE OF ANOMALOUS ABSOPTION DEVELOPING UNDER HF HEATING OF THE IONOSPHERE . ... Fig. ... With the aid of numerical statistical modeling based on multiple ray tracing it is shown that in presence of large-scale irregularities the reflected signal amplitude mean value is increased significantly. ... Dependence of the mean amplitude of the reflected from the ionosphere signal on the large-scale (10-50 km) electron density irregularity level...

... Previous: Multi-threaded Query Agent and Engine for a Very Large Astronomical Database . ... Dedicated tools have been developed at CDS in order to face the challenge of fast on-line access to very large astronomical catalogues. ... When a query to such a large catalogue is submitted to VizieR , the CDS database of catalogues and tables (Ochsenbein et al. 2000), a dedicated program handles the request, extracts and decodes the matching data, and sends its output back to VizieR. ... 1990, Russel et...

Astronomy Picture of the Day . Asteroid 253 Mathilde's Large Craters . ... 1.07.1997 . ... July 1997 . ... 1997 1998 . ... 2007 2008 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ... U. Based on Astronomy Picture Of the Day . Publications with keywords: Mathilde - asteroid . Publications with words: Mathilde - asteroid . ... Lutetia: The Largest Asteroid Yet Visited . ... On the Trail of 2008 TC3 . ...

The abundance of lithium in metal-poor, near-main-sequence stars lies well below the value obtained from Standard Big Bang Nucleosynthesis constrained by the result of the Wilkinson Microwave Anisotropy Probe. ... For example, the Plateau has been described as: (i) ultrathin but postprimordial (Ryan et al. 1999); broken (Melendez et al 2010); and (iii) undergoing meltdown (Bonifacio et al 2010). ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... large (8 inches or larger) . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... One way to do this would be to have each widget emit its own type of signal when its adjustment changes, and either pass the new value to the signal handler, or require it to look inside the widget's data structure in order to ascertain the value. ... The value argument is the initial value you want to give to the adjustment, usually corresponding to the topmost or leftmost position of an adjustable widget. The lower argument specifies the lowest value which the adjustment can hold. ...

... The wavelet map is a graphical representation of the function (sometimes called the wavelet coefficients) of two variables and for a given wavelet. Large values of the function (the so-called wavelet coefficients) reflect the combined effects of a large fluctuation of the signal f at this time and of a good matching of shape between the signal and the wavelet. ... For example when we use the antisymmetric wavelet (Fig. ... Figure 8: g1-wavelet map of the cosine picks out gradients of the signal. ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 13 - 19.04.2015, Forecast on 20 - 27.04.2015, Carrington RotationЫ 2162, 2163 (27,93.03; 24,21.04.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVEL ALL DAYS. ... SUNSPOT-FORMING ACTIVITY IS EXPECTED TO BE AT AVERAGE TO LOW LE- VELS. ... BY DATA OF CORONOGRAPHS SOHO AND STEREO WERE OBSERVED > 32 CME FROM WHICH TWO WERE "HALO" TYPE, ONE - "PARTIAL HALO III" TYPE AND TWO - "PARTIAL HALO II" TYPE. ...

DISCLAIMER: The larger the aperture, the more light a telescope will gather and the fainter the object you can see. Here is a range of magnitudes you might expect to see. Given excellent sky conditions and good optics, a well trained eye can sometimes add up to 0.8 magnitude to these values. Limiting Magnitude depends on much more than the instruments aperture. ... One formula is for aperture in inches the other is for aperture in millimeters. ... Aperture (inches) . ... 15.2 . ...