... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

Integrating and strengthening the European Research Area ERA-NET Coordination and Support Action ASTRONET Coordinating Strategic Planning for European Astronomy Contract n° 262162 Starting date : 1 January 2011 Duration : 4 Ѕ years Deliverable number Title Work package Due date ... of lead contractor for this deliverable Prepared by Approved by Released by Nature Revision 5.12 Report on the implementation of common ... 4 Specific actions initiated .. ... 6 Virtual Observatory (VO) .. ...

... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...

... Sun images . Magnetic storms online . Sun flares . ... February : 2009 . ... X-ray emission of the Sun from 08.02.2009 to 09.02.2009 (GOES-10) . No solar flares of C, M and X-class were observed today . No solar flares of C, M and X-class were observed yesterday . Last updated: February 10, 2009 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...