. This artistтАЩs impression shows the dust trap in the system Oph-IRS 48. The dust trap provides a safe haven for the tiny rocks in the disk, allowing them to clump together and grow to sizes that allow them to survive on their own. // ESO/L. Cal†зada

... It is a simple 1 X finder scope that mounts to almost any telescope. ... It projects three red circles into space, allowing you to center the scope on bright stars or planets. ... In many cases it is the only finder scope you'll need. (in bright city skies, it will be more difficult to use). Place the Telrad circles between the bright stars shown around the Messier object you wish to view, and with you widest field eyepiece (usually the lowest power) you should find the Messier Object very easily. ...

High resolution IR-spectrometer . ... Determination of concentration of atmospheric greenhouse gases (carbon dioxide and methane) from ground-based or spacecraft platforms. ... Compact eschelle spectrometer is built by autocollimation scheme with diffraction grating operating in high orders of diffraction, allowing thereby to reach the resolution up to ?/ 20 000. ... For observations at the ground-based platforms and aboard the ISS the instrument modification RUSALKA will be used. ...

... The Russian Federation State Program "Physics of Condenced Matter", the "Superconductivity" division , Project code "Generation-2" . ... The multielement josephson structures are known to allow implementation of the unique properties of the Josephson junctions as electromagnetic waves sources with high change rate of generation frequency, working in the millimeter and submillimeter wavelength diapasones. ... Even the optimal type of the junction electrodynamic interconnection isn't chosen. ...

... The first domestic liquid-propellant rocket engine with afterburning of generated gas in a combustion chamber allowed to achieve a specific impulse of up to 340 kgf s/kg in vacuum when using main components. ... Fuel components: . ... fuel . ... The engine has a more heat-intensive combustion chamber, therefore, RG-1 is used as fuel. When launching heavy-lift spacecraft, synthine can be used in the capacity of fuel without re-designing the engine. ... Official WEB-site of S.P.Korolev RSC Energia . ...

Download Izmccd (~2.7 MB). The program Izmccd is intended for precision astrometric processing of a CCD frames. This program allows to determine an equatorial coordinates of minor planets, comets, satellites of major planets, visually double stars and other objects. Also you have an opportunity of identification of known minor planets and a detection of moving objects. ... Using of program. ... Solution of problems at identification of star field. Designation of objects on image. ...

Posting Observations . ... You will need to subscribe to vsnet-acc (to allow you access to post your observations). ... VSNet has several different e-mail sigs, and sub sigs. ... These list are controlled by a software package called " Majordomo ", which allows you to subscribe and unsubscribe yourself from these list with an e-mail message (automated). ... Once you have subscribed to vsnet-acc (which will only send you a welcome message back and nothing else) you can post to the other list. ...

... Master . Master net Homepage . ... Ten years ago it was realized that robotic observatories boost the capabilities of astronomical observations of non-stationary and short-lived phenomena in the Universe. ... The first Russian robot-telescope MASTER was developed in 2002 and installed nearby Moscow. ... OAO MO "Optica" has mastered the production of such systems. The workshop is devoted to the results achieved by MASTER-net, that recently stretch over the globe from Blagoveshensk to Argentina. ...

... Our Key Stage 1 and Key Stage 2 interactive shows allow children to explore the Solar System and then to take part in a competitive quiz about the planets and moons that they have just seen. ... During their Planetarium visit, Year 3 and 4 primary school pupils take part in an interactive Solar System show. ... Key Stage 2 pupils will take part in an interactive show which explores the Solar System and then take part in a workshop which asks them to design a landing system which will allow . ...

Using the Huygens and Babinet principles van de Hulst [ 11 ] considered the problem of light scattering and extinction by a particle having the size and the refractive index . ... The absorption cross-section is . ... The range of applicability of the anomalous diffraction theory for the scattering amplitude is limited by small angles, however the formules for the cross-sections became good approximations for a wide class of particles. ... This problem for spherical particles was solved by A.Ya. ...

... In spite of the good potential possibilities, some of the station "Dnepr" design characteristics did not allow us to apply the usual special IS radar measurement methods. ... Thus for IS signal measurements at the "Dnepr" station, we have developed special methods for recording and processing IS signals in order to determine plasma ionospheric parameters. ... Equations (4-5) from the basis for data post processing to obtain ionosphere parameters. ...

... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...