An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! . b) Changes in Stars . One of the great discoveries of modern science is that stars (like people) live only a measurable life-time and then die. Although the lives of the stars are enormously longer than the span of a human life, we can learn about the life story of the stars by studying them at many different stages in their life cycle, from birth to death. ...

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if they are available. Bourne shell (sh) . C shell (csh) . TC shell (tcsh) . Korn shell (ksh) . Bourne Again SHell (bash) .

Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...

ASTP PROJECT . On July 17, 1975, for the first time in the history of mankind, space vehicles belonging to different nations - the Soviet and the American space vehicles Soyuz-19 and Apollo - have performed rendezvous and docking to deploy into an integrated orbital complex. ... Appointed Project Managers were: for the Soviet part - K.D. Bushuev, a Corresponding Member of the USSR AS, for the American part - Doctor G. Lanny. ... Official WEB-site of S.P.Korolev RSC Energia . ...

NASA s Solar Dynamics Observatory captured this image of Earth and the Moon transiting the Sun together on September 13, 2015. The edge of Earth, visible near the top of the frame, appears fuzzy because Earth s atmosphere blocks different amounts of light at different altitudes. On the left, the Moon s edge is perfectly crisp because it has no atmosphere. This image was taken in extreme ultraviolet wavelengths of 171 angstroms. ... NASA/SDO ...

Here are various colour wedges that illustrate some of the colour schemes possible with `cubehelix' (together with files for use in ds9 or kvis). the `default' scheme: . ds9 or kvis . with different start colours: . ... with different hue values: . ... with different rotations: . ... rotating the other way around: . ... no colour rotation: . ... different gammas: . ... go to: cubehelix page . ...

... 18-Jan-2010 17:22 . ... Apache/2.2.3 (CentOS) Server at www.wdcb.ru Port 80 ...

... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... ERS-2 has a fixed repeat cycle of 35 days, and follows ERS-1 tracks with one day's delay. ... Swath width is 102.5 km (telemetered), spatial resolution is about 25x25 m. The Advanced SAR (ASAR) instrument is carried by ESA's ENVISAT satellite launched on 1 March 2002. ... Swath . ... Spatial Resolution...

Blackholes Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums | Blackholes I | ... There Are Two Different Situations Here! Forum List | ... Back to Thread Topics | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... The spacecraft of Magion type have been selected as the subsatellites of the Interball project: Magion-4 (C2-X) for the Tail Probe and Magion-5 (C2-A) for the Auroral Probe. ... Magion-4 was produced in the Czech Republic in collaboratrion with Russia, Ukraine, Hungary, Austria and has onboard scientific instruments and sensors designed and built in Czech Republic, Russia, Poland, Hungary, Romania, Bulgaria and Slovak Republic. ... Plasma flow detector VDP-S (Czech Republic, Russia) . ...

SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...

... Tracking stations will be selected in accordance with the schedule issued daily by the General Operative Control Group (GOCG) in Lavochkin Association with the gaps in operations during spacecraft contact with the control stations (CS). ... Communication frequencies (carrier): high data rate information transmission downlink from the SRT ­ 15.000 GHz; uplink synchronization ­ 7.2075 GHz; downlink synchronization ­ 8.400 GHz. ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "That's as remote as the dark side of the Moon!" ... As the tired, hackneyed refrains went on, one in particular caught my ear: " Fly me away to the bright side of the moon, and meet me on the other side." ... As the Moon orbits the Earth, different parts of it get illuminated by the Sun. ... Bad Addendum : At the end of the album "Dark Side of the Moon" by Pink Floyd, there is a voiceover that actually says "There is no dark side of the moon. ...

Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...

Pixels , slits and facets for the NGST NIRSpec: Appendix ST-ECF Instrument Science Report NGST 2002-01a Pixels , slits and facets for a MEMS-type spectrograph for NGST Appendix : Extension to different PSF and detector properties Santiago Arribas, Peter Jakobsen, Robert Fosbury Wolfram Freudling --1-- ST-ECF Instrument Science Report NGST 2002-01a Pixels , slits , and ... This PSF meets the two requirements established by Bely et al. for the OTA optical quality. ...

... Today's crew is Jeff Sundwall, Shu-i Wang, Larry Fiscelli, and Dave Woods. ... Jeff has everything set out to mount the front end of the camera and work on the alignment. ... The front end is hoisted and alignment supports are attached to the back. A different angle on the installation while folks tighten this and that. Shu-i and Jeff unpack alignment rods. ... Shu-i adjusts the collimator while Jeff adjusts the mirrors while working the laser (note right arm). ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

JSC Celebrates 40 Years of Human Space Flight . International Space Station . ... Among them: first time a partnership of nations owns and operates a space station , first time access to previously secret facilities, first time linkages between training and control centers, the first time orchestrating of multiple spacecraft traffic, the first -of-its-kind commercial ventures, including space tourism, the first time deployment of very large solar arrays, first ...

... Мытищи - ст. Лосиноостровская 2-3 раза в час 21 ст. ... Мытищи - Пансионат 2 раза в час 23 ст. Мытищи - Пестово 25 ст. ... Мытищи - Чивирево 1-2 раза в час Крюково - Менделеево 4-7 раз в час Икша - Никольское примерно 8 раз в сутки Икша - Ассаурово 1 раз в час N.B. Восстановлен прежний маршрут автобуса Икша - Ассаурово - он отправляется из Икши с запада от канала им. Москвы (по Дмитровскому ш.), у станции Морозки переезжает по мосту через железную дорогу и канал и дальше едет в Ассаурово. ...