... Alpha Centauri: The Closest Star System . ... The closest star system to the Sun is the Alpha Centauri system. Of the three stars in the system, the dimmest -- called Proxima Centauri -- is actually the nearest star. The bright stars Alpha Centauri.. ... Stars and Planets in the Halo of the Moon . ... Photographed on March 13th from Caledon, Ontario, Canada, a bright Moon was surrounded by this lovely halo. ... The star, likely.. NGC 253: The Sculptor Galaxy . ... March . ...

Automatic Classification of Sunspot Groups Using SOHO/MDI Magnetogram and White Light Images David Stenning March 29, 2011 1 Introduction and Motivation Although solar data is being generated at an unprecedented rate, the majority of sunspot classification is done manually by experts. ... This is to smooth the "white" areas in the magnetograms. ... Left: Inverse Magnetogram Right: "Opened" Inverse Magnetogram 6 Using the cleaned images, sunspot active-region "seeds" are obtain by thresholding. ...

... First I derive the correlation functions for a monochromatic signal and then a continuum signal. ... Monochromatic, Linearly Polarized Signals Consider a monochromatic, linearly polarized signal at RF: ~ E(t) = c cos(!t)“x + s cos(!t)“y: (1) where c = cos ь and s = sin ь and ь is the position angle. The corresponding components of circular polarization are E L;R (t) = E x (t) \Sigma E y (t \Gamma t 1=4 ) (2) where t 1=4 j ъ=2! 0 is a delay equal to one quarter cycle at the center frequency ! ...

... At the surface of the rotating neutron star with a strong dipole magnetic field the quadrupole electrical field is induced due to the action of the unipolar generator: E=v xB/c. In this electrical field strong particle acceleration takes place, which is accompanied by the cascade e + e - pair production. ... Schematic model of the pulsar as a rotating neutron star with an inclined dipole magnetic field. table of contents . previous page . next page . main page . CYGAM (PDF, 450 Kb) . ...

... The constants and conversion factors are defined here as double precision values. ... flt_min the minimum single precision floating point number , excluding denormalised numbers minfloat the minimum single precision floating point number , including denormalised numbers dbl_min the minimum double precision floating point number , excluding denormalised numbers mindouble the minimum double precision floating point number , including denormalised numbers flt_max the maximum ...

alpha(2000) = 11h 53m 49.83s , delta(2000) = +53d 41' 41.1'' . V = 2.44, B-V = 0.00, Spectral type: A0V . Field is 15.0 x 15.0 arcmin . IUE (1.2A steps ftp access to UV+visible wavelength data files for this standard . jwalsh@eso.org

... With the stars gamma Can and delta Can , it forms another asterisms called " the Asses and the Manger ". ... Formed by the stars delta Ori, epsilon Ori and zeta Ori ; in Latin America it is called the " Three Marys ". ... Built by the four stars alpha UMa, beta UMa, gamma UMa and delta UMa . ... Formed by the four stars alpha Del , beta Del , gamma Del and delta Del . ... Also on Orion; the belt stars ( delta Ori , epsilon Ori and zeta Ori ), the sword and eta Ori build up this asterism. ...

. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>

Effect of chromospheric activity on the mean colours of late­type stars P. Amado and P.B. Byrne A&A, accepted July 96 In this paper we show, for the first time, the effect of activity on the (U \Gamma B) o vs. B \Gamma V ) o colour­colour diagram for a large sample of late type stars. we clearly see that for single­lined spectroscopic RS CVn systems there exists an ultraviolet excess over that recorded for quiescent stars of the same spectral type. ...

Calculation attitude parameters: . ... Axes position of the GSE system relative to the s/c coordinate system is determinated by 3 angles Alpha , Betha and Gamma . Alpha and Betha determinate coordinates of a new XGSE axis, while Gamma determinates YGSE or ZGSE. ... String in the attitude file look like this: . ... 980307 09 16 21 604 -665.00 233.00 264.00 . ... 980307 09 16 30 604 -669.00 336.00 113.00 . ... 980307 09 16 42 604 -672.00 359.00 -114.00 . ... Angles Alpha Beta Gamma (rad) . ...

Next: DISH : The Single Dish Environment in AIPS++ . ... We present the SDImager tool which is designed to be the single dish imaging component of DISH in AIPS++. ... Recent work has concentrated on developing an imaging tool for single dish on-the-fly (OTF) observations using the same imaging class library as used for synthesis imaging in AIPS++. ... The initial single dish imaging tool in AIPS++ provides a few tools to examine and image these types of observations. ...

... Стильные туфли от Luz Da Lua - основа гардероба каждой женщины! ... Изысканные туфли внесут элегантные нотки в ваш модный образ. ' title=' Ardo Набор Single PumpSet - ArdoНабор Single PumpSet' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Набор одинарный для подключения к молокоотсосу Ardo Single PumpSet - дополнительный одинарный комплект для подключения к электрическому молокоотсосу Calypso. ... Теперь ты можешь создать новый образ с Max Factor "Lipfinity"...

Up: The Second EGRET Catalog Previous: References . ... Maps of locations of four bright sources in this catalog. ... Maps of locations of four sources in this catalog whose 95% error contours are not well represented by an ellipse. ... Map showing upper limits for sources at any position in the sky, in units of photons(E > 100 MeV) cm s , based on the EGRET summed Phase 1 + Phase 2 exposure. As noted in the text, upper limits within 1 of catalog sources should not be taken from this figure. ...

System parameters on Digital UNIX . ... Digital and Cray use the number of bytes as the KIND -parameter. ... LOGICAL Default byte word KIND number = 4 1 4 LOGICAL Default double quad KIND number = 4 8 16 INTEGER int15 int31 int63 KIND number = 2 4 8 digits = 15 31 63 radix = 2 2 2 range = 4 9 18 huge = 32767 2147483647 9223372036854775807 bit_size = 16 32 64 REAL single double quad KIND number = 4 8 16 digits = 24 53 113 maxexponent = 128 1024 16384 minexponent = -125 -1021 -16381 ...

STScI . SSO . Single Sign-On . ... What is STScI . ... Missions . ... Research . ... SSO" stands for "Single Sign-On" and it allows you to use your STScI SSO Portal credentials to log on to many services throughout the Institute. Rather than have each service maintain separate user accounts, users log in through the SSO Portal. ... Log in using your STScI email address (e.g. lastname@stsci.edu) and your "AD" password, the same password you use to access your email. ... Single Sign-On FAQ . ...

... DIGITAL EDITIONS . ... Tonight's Sky . ... Observing . ... Digital Editions . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... dslr (digital single-lens reflex) . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... omgchain (omgchain-1.8.1) [?? ... The SAS task omcomb is called by omgchain when the current ODF contains files obtained in the Engineering-2 (full frame, low resolution) mode of OM. In this mode the data from the OSW is split into four sub-windows. For instance, the -pixel image can be placed in four image files, each containing a vertical -pixel strip. Combining the Engineering-2 files into one image is the default option, which, if desired, can be switched off. ...

... July , 2007 . ... 0.12 0.23 +/- 0.10 +/- 0.06 Internal error of single observation 0.18 0.11 ----------------------Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA (O-C)cosDEC DEC (O-C) h m s " ' " " 78756 094 2007 7 22.891513 20 04 27.767 -0.12 - 9 55 57.80 0.32 78756 094 2007 7 22.899703 20 04 27.348 -0.34 - 9 55 58.00 0.30 78756 094 2007 7 22.907823 20 04 26.959 -0.18 - 9 55 58.20 0.28 78756 094 2007 7 22.914753 20 04 26.618 -0.17 - 9 55 58.30 0.33 Mean of last 4 obs. ...

Общая Астрономическая Конференция > Товары для астрономов > Барахолка . Куплю Simple Type Drive EQ2 или Single Axis . ... Куплю привод Simple Type Drive EQ2 или Single Axis . ... Лунные феномены (редкие, необычные явления) Жизнь астрономов-любителей Анонсы астрономических мероприятий Астрономические клубы Наш "Старлаб" . ... Продам привод EQ2 Simple Type . ...

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