... If you hope that aliens could be somewhere then meet with first Children's Message to Extraterrestrial! ... Message to . ... An idea of contact with unknown life forms unite different specialist like: astronomers, physicists, cyberneticians, radio technicians, linguists, philosophers, and historians. Take a look at page prepared by the SETI Science and Culture Center of the Tsiolkovsky Academy of Cosmonautics and by the SETI Section of the Radio Astronomy Council, Russian Academy of Sciences. ...

... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...

... At the January meeting we finally achieved the necessary quorum in the vote on the bylaws changes proposed in September. ... Giant Ribbon at Edge of the Solar System: Mystery Solved? ... It is where solar wind particles heading out into interstellar space are reflected back into the solar system by a galactic magnetic field." ... Particles from the solar wind that escape the solar system are met ~100 astronomical units (~15 billion kilometers) away by an interstellar magnetic field. ...

... Table 1 lists all RV data for KELT-3 , and Figure 2 shows 20 TA B L E 1 RV O B S E RVAT I O N S O F K E LT- 3 BJD RV RV errora Source (TDB) (m s-1 ) (m s-1 ) 2455983.672916 -319 25 TRES 2455990.777987 -66 14 TRES 2456000.473809 -31 27 FIES 2456001.465355 103 20 FIES 2456002.514673 -259 20 FIES 2456003.552533 90 16 FIES 2456004.432251 0 16 FIES 2456018.656206 -324 14 TRES 2456019.709404 4 19 TRES 2456020.710562b -125 18 ... Both observations were able to resolve KELT-3 from...

... NOAA 11300's . ... The law latitude recurrent pore was observed in the Northern hemisphere since 20.08 to 30.08.05, with breaks. ... The short-time mid latitudes sunspot was observed in the Southern hemisphere on 24.08 and 25.08.05, near the central meridian. ... The bipolar group of the appreciable sizes was observed at the tenth parallel from 13 to 16.12.05, in the Western part of the Southern hemisphere. 14.12 the total area of the region has reached 150 m.s.h., and sunspots quantity - ten units....

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

... 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 . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...